Test method and test apparatus for checking the function of a painting device

• US 8,567,694 B2
• Filed: 12/03/2008
• Issued: 10/29/2013
• Est. Priority Date: 12/21/2007
• Status: Active Grant

• Current Assignee: Duerr Systems GmbH
• Original Assignee: Durr Systems GmbH
• Inventors: Herre, Frank
• Primary Examiner(s): Rogers, David A
• Application Number:
  US12/809,829
• Publication Number:
  US 20100274378A1
• Time in Patent Office: 1,791 Days
• Field of Search: 239 71- 75
• US Class Current: 239/71
• CPC Class Codes: B05B 12/00 Arrangements for controlling delivery; Arrangements for controlling the spray area
• CPC Class Codes: B05B 15/00 Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
• CPC Class Codes: B05B 5/0407 with a spraying edge, e.g. like a cup or a bell
• CPC Class Codes: G01M 99/008 by doing functionality tests

Abstract

The disclosure relates to a test method for functional testing of a painting device, comprising: connecting a test device to the painting device, capturing at least one process parameter of the painting device, and checking of a functionality of the painting device by the test device using the captured process variables of the painting device. The disclosure further relates to a corresponding test device for performing the method.

Claims

1. A test method for checking the function of a painting device, comprising:

connecting a test apparatus to the painting device,

detecting at least one process parameter associated with the painting device by the test apparatus,

checking a functionality of the painting device by the test apparatus based on the at least one process parameter,

carrying out control of the painting device using the test apparatus,

detecting a change in the at least one process parameter following the control of the painting device, and

determining whether the change in the at least one process parameter is indicative of expected operation of the painting device.

2. Test method according to claim 1, wherein the test apparatus is connected electrically to the painting device by a first adapter and fluidically to the painting device by a second adapter.

3. Test method according to claim 1, wherein

the painting device to be checked includes a dosing pump having an adjustable flow rate and a main needle valve with an adjustable valve position,

the detected process parameters of the painting device include the flow rate of the dosing pump and the valve position of the main needle valve, and

wherein checking the functionality of the painting device by the test apparatus includes checking a temporal relationship between the flow rate of the dosing pump and the valve position of the main needle valve.

4. Test method according to claim 1, wherein

the painting device to be checked has a pulsed air feeding line and a flushing agent feeding line,

the detected process parameters of the painting device include the pulsed air flow and the flushing agent flow,

wherein checking the functionality of the painting device by the test apparatus includes checking a temporal relationship between the pulsed air flow and the flushing agent flow.

5. Test method according to claim 1, wherein

the painting device to be checked includes an installation control that controls the operation of the painting device,

the test apparatus selectively communicates with the installation control of the painting device,

the test apparatus receives the at least one process parameter of the painting device from the installation control of the painting device, and

the test apparatus modifies the at least one process parameter of the painting device via the installation control of the painting device.

6. Test method according to claim 1, wherein the test apparatus is connected to the painting device to be checked by a single adapter.

7. Test method according to claim 6, wherein the one single adapter includes an electrical connection and a fluid line connection between the test apparatus and the painting device to be checked.

8. Test method according to claim 1, wherein

the painting device to be checked applies a multi-component paint which includes as components at least one stock paint and at least one further component,

the detected process parameters of the painting device include a flow of the stock paint and a flow of the further component,

wherein checking the functionality of the painting device by the test apparatus includes checking a temporal relationship between the flow of the stock paint and the flow of the further component.

9. Test method according to claim 8, wherein the at least one further component includes a hardener.

10. Test method according to claim 1, wherein

the painting device to be checked is a painting robot that guides an atomizer with one of a robot arm and a robot hand axis,

the test apparatus is connected to the painting robot via an adapter,

the adapter is arranged between the atomizer and the robot hand axis or between the robot hand axis and the robot arm.

11. Test method according to claim 10, wherein

the painting device to be checked includes a connection flange for an atomizer,

the test apparatus is connected to the connection flange of the painting device via an adapter, wherein the adapter replaces the atomizer.

16. Test apparatus according to claim 12, wherein the test apparatus is configured to carry out a test method according to claim 1.

12. A test apparatus for carrying out a test method, comprising:

a connection configured to selectively connect the test apparatus to a painting device,

a detection unit configured to detect at least one process parameter of the painting device via the connection, when the test apparatus is connected to the painting device,

an evaluation unit that checks a functionality of the painting device based on the at least one process parameter of the painting device; and

a control unit configured to control the painting device,

wherein the evaluation unit is configured detect a change in the at least one process parameter following control of the painting device by the control unit, and to determine whether the change in the at least one process parameter is indicative of expected operation of the painting device.

13. Test apparatus according to claim 12, wherein the connection includes at least two adapters, including:

a first adapter for electrical connection of the test apparatus to the painting device, and

a second adapter for fluidic connection of the test apparatus to the painting device.

14. Test apparatus according to claim 12, further comprising a computing unit having a program memory in which at least one checking program is stored.

15. Test apparatus according to claim 12, wherein for illustrating a check result of the function check at least one visual tool is provided, the visual tool including one of a screen integrated in the test apparatus, a printer integrated in the test apparatus, and an output for connection to an external screen or an external printer.

17. Test apparatus according to claim 12, wherein the test apparatus is configured to modify at least one of the following process parameters of the painting device:

a valve position of the painting device,

an electrical process parameter of the painting device,

a fluidic process parameter of the painting device, or

a temperature in the painting device.

18. Test apparatus according to claim 12, wherein the test apparatus is configured to modify at least one of the following electrical process parameters of the painting device:

a charging voltage or charging current of an electrostatic coating agent charge, wherein the electrostatic coating agent charge is selected from a group consisting of a direct charge, an external charge and a combination charge,

a regulation-technical parameter of a voltage regulation or a current regulation of the electrostatic coating agent charge,

a switch position of electrical switches of the painting device, wherein the electrical switch is selected from a group consisting of earth switches and disconnecting switches, or

an electrical capacity of the painting device or a part of the painting device.

19. Test apparatus according to claim 12, wherein the test apparatus is one of portable and mobile.

20. Test apparatus according to claim 12, wherein the painting device to be checked is one of an atomizer, a rotary atomizer, and a painting robot.

21. Test apparatus according to claim 12, wherein

the painting device to be checked is an atomizer having a connection flange, and

the test apparatus is selectively connectable to the connection flange of the atomizer.

22. Test apparatus according to claim 12, wherein the test apparatus is connected via a wireless connection to the painting device.

23. Test apparatus according to claim 12, wherein the connection has only one single adapter via which the test apparatus is connected to the painting device to be checked.

24. Test apparatus according to claim 23, wherein the adapter includes an electric cable connection and a fluidic line connection between the test apparatus and the painting device to be checked.

25. Test apparatus according claim 12, further comprising

a program-controlled computer for carrying out the function check of the painting device, and

a program memory in which a plurality of checking programs are stored, wherein the checking programs control the function check of the painting device.

26. Test apparatus according to claim 25, wherein the stored checking programs are respectively function specific and are configured to check the following functional fields of the painting device:

a tightness of the painting device,

an electrostatic coating agent charge,

a dynamic of the painting device,

a dosing precision of the painting device,

an individual coating agent channels of the painting device.

27. Test apparatus according to claim 12, wherein the test apparatus is configured to modify at least one of the following fluidic process parameters of the painting device:

a coating agent flow of a coating agent applied from the painting device,

a pressure,

a flushing agent flow of a flushing agent for flushing of the painting device,

an air flow,

a valve position of a main needle valve,

a valve position of a flushing agent valve, or

a valve position of a coating agent valve.

28. Test apparatus according to claim 27, wherein:

the coating agent includes a paint,

the pressure is selected from a group consisting of coating agent pressure, flushing agent pressure, shaping air pressure, pulsed air pressure and dosing pressure, and

the air flow is selected from a group consisting of shaping air flow and pulsed air flow.

29. Test apparatus according to claim 12, wherein the test apparatus is configured to determine adjusting values for operating the painting device.

30. Test method according to claim 29, wherein the adjusting values include the following parameters:

a control time,

a delay value, and

a limiting value.

31. A test method for checking the function of a painting device, comprising:

connecting a test apparatus to the painting device,

detecting at least one process parameter associated with the painting device by the test apparatus, and

checking a functionality of the painting device by the test apparatus based on the at least one process parameter;

wherein the detected process parameters of the painting device include one or more of (i) a flow rate of a dosing pump and a valve position of a main needle valve, (ii) a pulsed air flow of a pulsed air feeding line and a flushing agent flow of a flushing agent feeding line, and (iii) a flow of a stock paint in a multi-component paint and a flow of a further component in the multi-component paint,

further wherein checking the functionality of the painting device by the test apparatus includes checking at least one temporal relationship; and

further wherein the at least one temporal relationship exists between at least one of (i) the flow rate of the dosing pump and the valve position of the main needle valve, (ii) the pulsed air flow and the flushing agent flow, and (iii) the flow of the stock paint and the flow of the further component.