High-precision small workbench for maintenance of motor train unit

Abstract

The utility model relates to the technical field of motor train unit maintenance devices, in particular to a high-precision small workbench used for motor train unit maintenance, which comprises a motor train unit maintenance high-precision workbench, a detection workpiece is arranged above a detection assembly, a stepping motor II drives the workpiece to the lower part of a detection device, and the detection assembly is connected with the motor train unit maintenance high-precision workbench. A transverse coordinate driver of the detection device drives a sliding table part to slide on the side face of an adjusting column and drives a laser distance measuring sensor to be matched with a workpiece below, so that a laser displacement sensor carries out multi-point sampling measurement on the plane of the workpiece, and a sampling result is transmitted to a receiving end in a line-by-line back-and-forth scanning and interval time dense sampling mode; if the detection result has obvious nonlinear numerical value change, the processing quality problem is explained, and if the detection result has linear numerical value change, the X-direction assembly and the workpiece platform are reassembled after burrs are cleaned, so that different workpieces can be detected conveniently, and the workpiece detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor vehicle group maintenance devices, in particular to a high-precision small workbench used for motor vehicle group maintenance. Background Art

[0002] With the progress of the machinery industry, the maintenance requirements for the workpieces of various parts of EMUs are getting higher and higher, and each workpiece needs to be precisely inspected, which has led to the development of mechanical parts inspection tables to facilitate the inspection of mechanical parts. When inspecting workpieces, the workbench currently used has a poor fixing effect on the workpieces due to the irregular shapes and structures of some workpieces, and the workpieces are prone to offset, affecting the inspection data;

[0003] Currently, the most common detection method uses a flat-head external hook groove vernier caliper. The customized pointed end of the caliper needs to be used as the detection point for detection of wear pits and grooves. However, during the detection, the user's force is unbalanced and the caliper is held tilted, which will cause a large deviation in the detection result.

[0004] In view of this, we propose a high-precision small workbench for EMU maintenance. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-precision small workbench used for maintenance of EMUs.

[0006] The technical solution of the utility model is:

[0007] A high-precision small workbench used for EMU maintenance comprises a high-precision workbench for EMU maintenance, a detection component is fixedly installed on the side of the high-precision workbench for EMU maintenance, a control component is installed at the rear end of the detection component, the detection component comprises: a detection workpiece, a laser ranging sensor, an adjustment column, an adjustment base, a slide part, a transverse coordinate transmission device, a reinforcement plate, and a mounting seat, a detection workpiece is installed above the detection component, a guide rail is slidably connected to the bottom of the detection component, a mounting seat is fixedly installed below the guide rail, a reinforcement plate is fixedly installed on the side of the mounting seat, an adjustment base is arranged above the detection workpiece, a slide part is slidably connected to the front end of the adjustment base, and an adjustment column is slidably connected to the side of the slide part.

[0008] As a preferred technical solution, a transverse coordinate transmission device is installed at the top end of the adjustment column, and a laser ranging sensor is installed at the front end of the slide part.

[0009] As a preferred technical solution, the control component includes: a support base, a stepper motor, an aluminum profile frame, a connecting seat, and a transmission belt. The aluminum profile frame is installed on the outside of the control component, the support base is arranged on the inside of the aluminum profile frame, and the stepper motor is installed on the top of the support base.

[0010] As a preferred technical solution, a protective top plate is installed above the stepper motor one, a stepper motor two is installed below the protective top plate, and a transmission belt is provided at the output end of the stepper motor two.

[0011] As a preferred technical solution, a connecting seat is slidably connected to the side of the transmission belt, and a connecting block is fixedly installed at the front end of the transmission belt.

[0012] As a preferred technical solution, a mounting base is installed on the outer side of the connecting seat, and a protective shell is arranged above the mounting base.

[0013] As a preferred technical solution, a mounting top plate is fixedly installed above the protective shell, a touch screen controller is arranged above the mounting top plate, a power supply area is arranged at the rear end of the protective shell, and a charging port is arranged inside the power supply area.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model places the high-precision workbench for maintenance of the EMU on a flat and stable platform or desktop when in use, so that it has no obvious shaking and vibration. The charging port in the power supply area is connected to the AC220V1.3A-DC24V5A mains converter of the device. It needs to be powered on and connected to the power socket of the device during operation. At the same time, the energy consumption of the device is less than 120W. The outer protective shell and the top plate are installed to prevent the laser of the instrument from being exposed and burning the eyes. The detection workpiece is installed above the detection component, so that the stepper motor 2 brings the workpiece to the bottom of the detection device. The horizontal coordinate transmission device of the detection device drives the slide table parts to slide on the side of the adjustment column to drive the laser The distance measuring sensor is matched with the workpiece below, so that the laser displacement sensor performs multi-point sampling measurement on the plane of the workpiece. The sampling results are transmitted to the receiving end by line-by-line reciprocating scanning and time-intensive sampling. The sampling time interval is 10ms (greater than the sensor response time). From the X-direction speed conversion, it can be known that each bit of movement is sampled once for about 1mm, and the Y-direction line spacing is 1mm adjustable (greater than the spot diameter). If there is an obvious nonlinear value change in the detection result, it indicates a processing quality problem. If there is a linear value change, please clean the burrs and reassemble the X-direction components and the workpiece platform to facilitate the detection of different workpieces and improve the accuracy of its workpiece detection.

[0016] 2. The utility model drives the transmission belt to pull the connecting block to move through the stepper motor 2 and the stepper motor 1, so that the detection component slides back and forth above the guide track. Before the detection, the standard thickness detection workpiece is fixed on the workpiece platform, and the X-direction position is kept unchanged. The laser displacement sensor is powered on to enter the detection sampling mode, and the laser sensor is slid in the Y direction. The laser detection distance value should remain stable. If there is an obvious nonlinear value change, it indicates a quality problem of the incoming material. If there is a linear value change, the module height is adjusted unilaterally as shown in the figure below until the sensor detection value is consistent and then locked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a high-precision workbench for EMU maintenance of the utility model;

[0018] Figure 2 This is a schematic diagram of the appearance component structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the detection component structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the control component structure of the utility model.

[0021] In the figure: 1. High-precision workbench for EMU maintenance; 11. Mounting top plate; 12. Touch screen controller; 13. Protective shell; 14. Mounting base; 15. Charging port; 16. Power supply area; 2. Detection component; 21. Detection workpiece; 22. Laser ranging sensor; 23. Adjustment column; 24. Adjustment base; 25. Slide parts; 26. Transverse coordinate actuator; 27. Reinforcement plate; 28. Mounting seat; 29. ​​Guide rail; 3. Control component; 31. Support base; 32. Stepper motor one; 33. Aluminum profile frame; 34. Protective top plate; 35. Stepper motor two; 36. Connecting seat; 37. Transmission belt; 38. Connecting block. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] See also Figures 1 to 4 , the utility model provides a technical solution:

[0025] A high-precision small workbench for EMU maintenance comprises a high-precision workbench 1 for EMU maintenance, a detection component 2 is fixedly installed on the side of the high-precision workbench 1 for EMU maintenance, a control component 3 is installed at the rear end of the detection component 2, the detection component 2 comprises: a detection workpiece 21, a laser distance sensor 22, an adjustment column 23, an adjustment base 24, a slide part 25, a transverse coordinate transmission device 26, a reinforcing plate 27, and a mounting seat 28, the detection workpiece 21 is installed above the detection component 2, a guide rail 29 is slidably connected below the detection component 2, a mounting seat 28 is fixedly installed below the guide rail 29, a reinforcing plate 27 is fixedly installed on the side of the mounting seat 28, an adjustment base 24 is arranged above the detection workpiece 21, a slide part 25 is slidably connected to the front end of the adjustment base 24, an adjustment column 23 is slidably connected to the side of the slide part 25, a transverse coordinate transmission device 26 is installed on the top of the adjustment column 23, and a laser distance sensor 22 is installed at the front end of the slide part 25.

[0026] It should be added that, when in use, the high-precision workbench 1 for maintenance of the EMU is placed on a flat and stable platform or desktop so that it has no obvious shaking or vibration. The charging port 15 of the power supply area 16 is connected to the AC220V1.3A-DC24V5A mains converter of the device. It needs to be powered on and connected to the power socket of the device during operation. At the same time, the energy consumption of the device is less than 120W. The outer protective shell 13 and the mounting top plate 11 prevent the laser of the instrument from being exposed and burning the eyes. The detection workpiece 21 is installed above the detection component 2, so that the stepper motor 235 brings the workpiece to the bottom of the detection device, and the lateral coordinate transmission device 26 of the detection device drives the slide part 25 on the side of the adjustment column 23 The surface slides, driving the laser distance sensor 22 to match the workpiece below, so that the laser distance sensor 22 performs multi-point sampling measurement on the workpiece plane, adopts line-by-line reciprocating scanning, and transmits the sampling results to the receiving end in a time-intensive sampling manner. The sampling time interval of 10ms is greater than the sensor response time. From the X-direction speed conversion, it can be known that each bit of movement is sampled once about 1mm, and the Y-direction line spacing of 1mm can be adjusted to be greater than the spot diameter. If there is an obvious nonlinear value change in the detection result, it indicates a processing quality problem. If there is a linear value change, please clean the burrs and reassemble the X-direction component and the workpiece platform to facilitate the detection of different workpieces and improve the accuracy of its workpiece detection.

[0027] As a preferred embodiment of the present invention, the control component 3 includes: a support base 31, a stepper motor 32, an aluminum profile frame 33, a connecting seat 36, and a transmission belt 37. The aluminum profile frame 33 is installed on the outer side of the control component 3, and the support base 31 is arranged on the inner side of the aluminum profile frame 33. A stepper motor 32 is installed above the support base 31, a protective top plate 34 is installed above the stepper motor 32, and a stepper motor 2 35 is installed below the protective top plate 34. A transmission belt 37 is arranged at the output end of the stepper motor 2 35, and the side of the transmission belt 37 is slidably connected to the connecting seat 36, and the front end of the transmission belt 37 is fixedly installed with a connecting block 38.

[0028] It is worth noting that the transmission belt 37 is driven by the stepper motor 2 35 and the stepper motor 1 32 to pull the connecting block 38 to move, so that the detection component 2 slides back and forth above the guide track 29. Before the detection, the standard thickness detection workpiece 21 is fixed on the workpiece platform and the X-direction position is kept unchanged. The laser ranging sensor 22 is powered on to enter the detection sampling mode, and the laser sensor is slid in the Y direction. The laser detection distance value should remain stable. If there is an obvious nonlinear value change, it indicates a quality problem of the incoming material. If there is a linear value change, adjust the module height unilaterally as shown in the figure below until the sensor detection value is consistent and then lock it.

[0029] As a preferred embodiment of the present invention, a mounting base 14 is installed on the outer side of the connecting seat 36, a protective shell 13 is arranged above the mounting base 14, a mounting top plate 11 is fixedly installed above the protective shell 13, a touch screen controller 12 is arranged above the mounting top plate 11, a power supply area 16 is arranged at the rear end of the protective shell 13, and a charging port 15 is arranged inside the power supply area 16.

[0030] During specific use, the high-precision workbench 1 for maintenance of the EMU is placed on a flat and stable platform or desktop so that it has no obvious shaking or vibration. The charging port 15 of the power supply area 16 is connected to the AC220V1.3A-DC24V5A AC power converter that is matched with the device. It needs to be powered on and connected to the power socket of the device during operation. At the same time, the energy consumption of the device is less than 120W. The outer protective shell 13 and the mounting top plate 11 prevent the laser of the instrument from being exposed and burning the eyes.

[0031] The utility model is a high-precision small workbench for EMU maintenance. When in use, firstly, the high-precision workbench 1 for EMU maintenance is placed on a flat and stable platform or desktop so that it has no obvious shaking and vibration. The charging port 15 of the power supply area 16 is connected to the AC220V1.3A-DC24V5A mains converter matched with the device. It needs to be powered on and connected to the power socket of the equipment during operation. At the same time, the energy consumption of the device is less than 120W. The outer protective shell 13 and the mounting top plate 11 prevent the instrument laser from being exposed and burning the eyes. The detection workpiece 21 is installed above the detection component 2, so that the stepper motor 235 brings the workpiece to the bottom of the detection device. The lateral coordinate transmission device 26 of the detection device drives the slide part 25 to slide on the side of the adjustment column 23, drives the laser ranging sensor 22 to match the workpiece below, and makes the laser ranging sensor 22 perform multi-point sampling and measurement on the plane of the workpiece. The sampling result is transmitted to the receiving end by line-by-line reciprocating scanning and time-interval intensive sampling. The interval is 10ms (greater than the sensor response time). From the X-direction speed conversion, it can be known that each bit of movement is sampled once for about 1mm. The Y-direction line spacing is adjustable by 1mm (greater than the spot diameter). If there is an obvious nonlinear value change in the detection result, it indicates a problem with the processing quality. If there is a linear value change, please clean the burrs and reassemble the X-direction component and the workpiece platform to facilitate the detection of different workpieces and improve the accuracy of its workpiece detection. The transmission belt 37 is driven by the stepper motor 2 35 and the stepper motor 1 32 to pull the connecting block 38 to move, so that the detection component 2 slides back and forth above the guide rail 29. Before the detection, the standard thickness detection workpiece 21 is fixedly placed on the workpiece platform, and the X-direction position is kept unchanged, so that the laser ranging sensor 22 is powered on to enter the detection sampling mode, and the Y-direction slide laser sensor is moved. The laser detection distance value should remain stable. If there is an obvious nonlinear value change, it indicates a problem with the incoming material quality. If there is a linear value change, as shown in the following figure, the module height is adjusted unilaterally until the sensor detection value is consistent and then locked.

Claims

1. A high-precision small workbench for EMU maintenance, comprising a high-precision workbench for EMU maintenance (1), characterized in that: A detection component (2) is fixedly mounted on the side of the EMU maintenance high-precision workbench (1); a control component (3) is mounted at the rear end of the detection component (2); the detection component (2) comprises: a detection workpiece (21), a laser distance measuring sensor (22), an adjustment column (23), an adjustment base (24), a slide part (25), a transverse coordinate transmission device (26), a reinforcement plate (27), and a mounting seat (28); a detection workpiece (21) is mounted above the detection component (2); a guide rail (29) is slidably connected to the bottom of the detection component (2); a mounting seat (28) is fixedly mounted below the guide rail (29); a reinforcement plate (27) is fixedly mounted on the side of the mounting seat (28); an adjustment base (24) is arranged above the detection workpiece (21); a slide part (25) is slidably connected to the front end of the adjustment base (24); and an adjustment column (23) is slidably connected to the side of the slide part (25).

2. A high-precision small workbench for EMU maintenance as claimed in claim 1, characterized in that: A transverse coordinate transmission device (26) is installed at the top end of the adjustment column (23), and a laser distance measuring sensor (22) is installed at the front end of the slide part (25).

3. A high-precision small workbench for EMU maintenance as claimed in claim 1, characterized in that: The control component (3) comprises: a support base (31), a stepper motor (32), an aluminum profile frame (33), a connecting seat (36), and a transmission belt (37). The aluminum profile frame (33) is installed on the outer side of the control component (3), the support base (31) is arranged on the inner side of the aluminum profile frame (33), and the stepper motor (32) is installed above the support base (31).

4. A high-precision small workbench for EMU maintenance as claimed in claim 3, characterized in that: A protective top plate (34) is installed above the stepper motor 1 (32), a stepper motor 2 (35) is installed below the protective top plate (34), and a transmission belt (37) is provided at the output end of the stepper motor 2 (35).

5. A high-precision small workbench for EMU maintenance as claimed in claim 4, characterized in that: A connecting seat (36) is slidably connected to the side surface of the transmission belt (37), and a connecting block (38) is fixedly mounted on the front end of the transmission belt (37).

6. A high-precision small workbench for EMU maintenance as claimed in claim 5, characterized in that: A mounting base (14) is mounted on the outer side of the connecting seat (36), and a protective shell (13) is arranged above the mounting base (14).

7. A high-precision small workbench for EMU maintenance as claimed in claim 6, characterized in that: A mounting top plate (11) is fixedly mounted above the protective housing (13), a touch screen controller (12) is arranged above the mounting top plate (11), a power supply area (16) is arranged at the rear end of the protective housing (13), and a charging port (15) is arranged inside the power supply area (16).

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