Guide rail sliding block service life testing machine

Abstract

The utility model discloses a service life testing machine for a guide rail slide block, which is characterized in that a testing linear rail mounting plate for fixedly mounting a testing linear rail sample piece is fixed on a testing platform; the pressure module comprises a pressure support parallel to the test line rail mounting plate, a pressing block which is mounted on the pressure support in a linear reciprocating manner, a pressure measuring device mounted on the pressing block and a pressure adjusting device for adjusting the position of the pressing block, and the driving module drives the pressure support to slide in the length direction of the test line rail sample piece. The pressing block can tightly press a sliding block of a test linear rail sample piece, the pressure measuring device can detect the pressure applied to the sliding block of the test linear rail sample piece by the pressing block and carry out communication data transmission with the control host, and the control host can judge whether the pressure applied to the sliding block of the test linear rail sample piece reaches a preset value or not and control the driving module to start and stop. According to the utility model, the guide rail slide block can be tested according to actual use conditions, further simulation analysis results are continuously corrected, the use performance of a product is perfected, and the product can cope with more complex working conditions.

Description

Technical Field

[0001] The utility model relates to the field of guide rail production, in particular to a guide rail slider life testing machine. Background Art

[0002] During the production process, the linear rail needs to be tested for abnormalities to determine whether it meets the design service life requirements. Currently, all linear rail abnormality detection can only be achieved through material analysis, drawing analysis, motion analysis and other means, and it is not possible to directly verify the actual use of the guide rail slider according to the required conditions. Moreover, in the current guide rail slider use industry, the guide rail slider may have various abnormal conditions beyond the original design due to the assembly of different equipment, different use industries, different use temperature and humidity, etc. Therefore, the guide rail slider manufacturing industry urgently needs a device that can facilitate actual testing of various models and working conditions. Utility Model Content

[0003] In order to overcome the above-mentioned defects, the utility model provides a guide rail slider life testing machine, which can test the guide rail slider according to actual usage conditions, and can continuously correct the simulation analysis results through the test results, so as to improve the product's performance and enable the product to cope with more complex usage conditions.

[0004] The utility model adopts a technical solution to solve the technical problem: a guide rail slider life tester, including a control host, a test line rail mounting plate, a drive module, a pressure module and a test platform, wherein three mutually perpendicular directions are respectively an X direction, a Y direction and a Z direction, the test line rail mounting plate extending on the XZ plane is fixedly installed on the test platform, the test line rail sample extending along the X direction is fixedly installed on the test line rail mounting plate, the pressure module includes a pressure bracket, a pressure block, a pressure measuring device and a pressure regulating device, the pressure bracket is arranged at one side of the test line rail mounting plate in parallel and at intervals, the pressure bracket can be installed on the test platform in a linear reciprocating manner along the X direction, the drive module drives the pressure bracket to reciprocate linearly, and the pressure measuring device is pressed by the pressure measuring device. The block can be installed on the pressure bracket so as to reciprocate linearly along the Y direction. The pressure block can press the slider of the test rail sample fixedly installed on the test rail mounting plate. The pressure measuring device is fixedly installed on the pressure block, and the pressure measuring device can detect the pressure applied by the pressure block on the slider of the test rail sample. The pressure measuring device communicates with the control host and transmits the detected pressure data to the control host. The control host can compare the pressure data detected by the pressure measuring device with the pre-stored pressure data to determine whether the pressure applied on the slider of the test rail sample reaches the preset value. The pressure regulating device can drive the pressure block to move along the Y direction and stop the pressure block moved to any position. The control host controls the start and stop of the drive module.

[0005] As a further improvement of the utility model, the pressure regulating device includes a screw rod movably threadedly connected to the pressure bracket and a pressure regulating hand wheel fixedly connected to one end of the screw rod, and the other end of the screw rod is connected to the pressure block axially stopped and rotatable in the circumferential direction.

[0006] As a further improvement of the utility model, at least two guide rods extending along the Y direction are spaced apart on the pressure support, and at least two guide sleeves are fixedly provided on the pressure block, and the guide sleeves are sleeved on the outside of the guide rods in a one-to-one correspondence.

[0007] As a further improvement of the utility model, a radially outward convex retaining ring is formed at the end of the guide rod, and a guide rod spring is provided on the outer side of the guide rod. The two ends of the guide rod spring are elastically pressed against the radially outward convex retaining ring and the surface of one end of the guide sleeve toward the test rail sample.

[0008] As a further improvement of the utility model, a pressure head is installed on the pressure block so as to be able to move linearly along the Y direction. A pressure buffer spring is also provided on the pressure block. The pressure buffer spring provides an elastic buffer force to the pressure head in the direction of the test linear rail sample. The pressure measuring device is installed on the surface of the pressure head.

[0009] As a further improvement of the present invention, the pressure module also includes a height adjustment plate and a height adjustment device. The height adjustment plate is arranged in parallel and spaced relation on one side of the test rail mounting plate. The pressure bracket is installed on the height adjustment plate so as to be able to slide back and forth in a straight line along the Z direction. The height adjustment device driving device drives the pressure bracket to slide in the Z direction and stops and positions the pressure bracket when it slides to any height position.

[0010] As a further improvement of the utility model, the height adjustment plate is provided with a Z-direction linear rail extending straightly along the Z-direction, the pressure support is fixedly mounted on the slider of the Z-direction linear rail, the height adjustment device includes a screw rod extending along the Z-direction and a height adjustment handwheel fixed to one end of the screw rod, the screw rod is mounted on the height adjustment plate so as to be rotatable in the circumferential direction and stopped in the axial direction, and the screw rod is movably threadedly connected to the pressure support.

[0011] As a further improvement of the utility model, the driving module includes a driving bracket, a driving motor, a synchronous wheel and a synchronous belt. The driving bracket is fixedly installed on the test platform, and two synchronous wheels are arranged on the driving bracket at intervals along the X direction, and the two synchronous wheels can rotate around the Y direction on the driving bracket. The synchronous belt is tightly sleeved on the outside of the two synchronous wheels. The driving motor is fixedly installed on the test platform, and the driving motor drives a synchronous wheel to rotate forward and reversely. The pressure module is fixedly connected to the synchronous belt as the power output component of the driving module to realize linear reciprocating motion. An X-direction linear guide is also fixedly installed on the driving bracket, and the pressure module is also fixedly connected to the slider of the X-direction linear guide for guiding.

[0012] As a further improvement of the present invention, the test rail mounting plates are two fixedly installed on the test platform at intervals, and the side walls of the two test rail mounting plates facing away from each other are respectively provided with mounting holes for fixing and installing the test rail samples, and the driving module is arranged between the two test rail mounting plates, and is also provided with a crossbeam, a connecting plate and a Y-direction linear guide rail. The connecting plate is capable of reciprocatingly sliding along the X direction and is arranged on the test platform, and the connecting plate is fixedly connected to the power output component of the driving module, the Y-direction linear guide rail is fixedly installed on the connecting plate, and the crossbeam is fixedly installed on the slider of the Y-direction linear guide rail to realize linear sliding along the Y direction. A pressure module is respectively fixedly installed at both ends of the crossbeam, and the pressure blocks of the two pressure modules respectively press the sliders of the test rail samples on the two test rail mounting plates, and the pressure measuring devices on the pressure blocks of the two pressure modules respectively measure the pressure applied to the sliders of the two test rail samples and synchronously transmit signals to the control host.

[0013] As a further improvement of the utility model, a test environment simulation box is also provided, and the test platform and the test rail mounting plate, drive module and pressure module thereon are all arranged in the test environment simulation box. The temperature, humidity and pollutant concentration of the internal environment of the test environment simulation box can be adjusted, and a PLC touch screen and an alarm are also provided on the outer wall of the test environment simulation box. The PLC touch screen and the alarm respectively communicate with the control host by wire or wirelessly. The PLC touch screen can input preset data to the control host, and the control host can also display test data and test results through the PLC touch screen. The control host can also control the alarm to send different alarm signals according to the test results.

[0014] The beneficial effects of the utility model are as follows: the utility model drives the pressure module to slide linearly and reciprocatingly on the test platform through the driving module, thereby realizing the linear reciprocating sliding of the slider of the test line rail sample in a simulated use state, and applies pressure to the slider of the test line rail sample through the pressure module to simulate the pressure that the line rail bears in actual use. During the test, the sliding speed of the slider and the size of the applied pressure can be adjusted according to the actual use of the line rail sample to simulate the actual operation condition, and the actual use environment of the line rail can also be simulated by testing under different temperature, humidity and pollutant concentration environments. During the test, different lubricating greases can be filled between the guide rail sliders to simulate the influence of different lubricating greases on the operation of the slider, and thus the use scenarios of the guide rail slider can be fully simulated to ensure that the test data is closer to the real data. The present application can also connect two pressure modules through a crossbeam to realize the synchronous testing of two test line rail samples. Since a floating connection is formed between the two pressure modules, the two test line rail samples tested synchronously can be tested. The pressures borne by the parts are the same, and the reciprocating interaction speeds are also the same. The control host can perform synchronous tests on the two test rail samples with high test efficiency. The utility model sets the pressure on the slider of the test rail sample while driving the slider to move back and forth in a straight line for a long time for detection, and different test conditions can be set. By observing the condition of the groove of the guide slider body of the test rail sample, the use condition of the slider during the movement can be judged. At the same time, the corresponding use status of the guide slider under different force pressures in different time periods can be recorded and tested. The utility model realizes multi-product verification of test rail samples under actual temperature and humidity, grease, movement speed, product load and stress conditions, and the results of analysis through simulation conditions can be continuously corrected through repeated verification results, so as to continuously improve the product's performance, so that the product can cope with more complex usage conditions, effectively avoiding the situation where engineers cannot intuitively verify the analysis results when dealing with abnormal problems, and effectively helping product research and development departments solve the problem of product performance verification. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structural principle of the utility model;

[0016] Figure 2 This is the main view of the structural principle of the utility model;

[0017] Figure 3 This is a front view of the structure principle of the pressure module of the utility model;

[0018] Figure 4 This is the main view of the structure principle of the drive module of the utility model;

[0019] Figure 5 This is a top view of the structural principle of the drive module of the utility model;

[0020] Figure 6 This is a right view of the structure principle of the drive module of the utility model;

[0021] Figure 7 It is a three-dimensional diagram of the use state of the utility model;

[0022] Figure 8 This is the front view of the utility model in use;

[0023] Fig. 9 It is a right view of the utility model in use state. DETAILED DESCRIPTION

[0024] Embodiment: A guide rail slider life tester, comprising a control host 1, a test rail mounting plate 2, a drive module 4, a pressure module 3 and a test platform 5, wherein three mutually perpendicular directions are respectively X direction, Y direction and Z direction, the test rail mounting plate 2 extending on the XZ plane is fixedly mounted on the test platform 5, the test rail sample 10 extending along the X direction is fixedly mounted on the test rail mounting plate 2, the pressure module 3 comprises a pressure support 31, a pressure block 32, a pressure measuring device 33 and a pressure regulating device, the pressure support 31 is arranged on one side of the test rail mounting plate 2 in parallel and at intervals, the pressure support 31 can be installed on the test platform 5 to slide back and forth in a straight line along the X direction, the drive module 4 drives the pressure support 31 to reciprocate in a straight line, and the pressure block 32 can reciprocate in a straight line along the Y direction The pressure block 32 is movably installed on the pressure bracket 31, and the pressure block 32 can press the slider of the test track sample 10 fixedly installed on the test track mounting plate 2. The pressure measuring device 33 is fixedly installed on the pressure block 32, and the pressure measuring device 33 can detect the pressure applied by the pressure block 32 on the slider of the test track sample 10. The pressure measuring device 33 communicates with the control host 1 to transmit the detected pressure data to the control host 1. The control host 1 can compare the pressure data detected by the pressure measuring device 33 with the pre-stored pressure data to determine whether the pressure applied on the slider of the test track sample 10 reaches the preset value. The pressure regulating device can drive the pressure block 32 to move along the Y direction and stop the pressure block 32 moved to any position. The control host 1 controls the start and stop of the drive module 4.

[0025] The pressure module adjusts the pressure applied by the pressure block 32 to the slider of the test linear rail sample 10 through the pressure regulating device. The pressure simulates the load size of the linear rail in actual use. The pressure regulating process is sensed in real time by the pressure measuring device 33. The pressure measuring device 33 can be various pressure sensors. When the pressure is detected to be adjusted to a preset pressure value, the pressure adjustment can be stopped. Then the driving module 4 drives the pressure module 3 to reciprocate in a straight line and then drives the slider on the test linear rail sample 10 to slide back and forth along the linear rail. The sliding distance and sliding speed are set and adjusted by controlling the driving module through the control host 1 to simulate the actual sliding situation.

[0026] The pressure regulating device includes a screw 34 movably threadedly connected to the pressure support 31 and a pressure regulating hand wheel 341 fixedly connected to one end of the screw 34, and the other end of the screw 34 is connected to the pressure block 32 axially and rotatably in the circumferential direction. The screw 34 is driven to rotate by rotating the regulating hand wheel, and then the pressure block 32 is driven to move along the Y direction to adjust the pressure on the slider on the test line rail sample 10. In addition, the pressure regulating device can also be realized by a motor and a screw 38 nut mechanism or by a motor and a gear rack mechanism. This is an equivalent replacement structure that can be easily thought of by a person skilled in the art based on this application, and it belongs to the protection scope of this application.

[0027] At least two guide rods 311 extending in the Y direction are provided at intervals on the pressure support 31, and at least two guide sleeves 321 are fixedly provided on the pressure block 32, and the guide sleeves 321 are sleeved on the outer sides of the guide rods 311 in a one-to-one correspondence. When the pressure block 32 moves in the Y direction, it is guided by the guide rods 311 and the guide sleeves 321 to ensure that it moves in a straight line in the Y direction to prevent tilting.

[0028] The end of the guide rod 311 is formed with a radially outwardly protruding retaining ring 312, and a guide rod spring 313 is sleeved on the outer side of the guide rod 311. The two ends of the guide rod spring 313 are elastically pressed against the radially outwardly protruding retaining ring 312 and the surface of the guide sleeve 321 facing the end of the test track sample 10. When the pressing block 32 is moved forward and backward in a directional manner through the guide rod 311, the guide rod spring 313 will be compressed until the end face of the pressing block 32 just fits on the slider of the test track sample 10. The guide rod spring 313 can ensure that the pressing block 32 remains in this position after the front and rear position is adjusted to prevent it from being displaced during the test process.

[0029] The pressing block 32 is provided with a pressure head 35 capable of linear movement in the Y direction, and a pressure buffer spring 36 is also provided on the pressing block 32. The pressure buffer spring 36 provides the pressure head 35 with an elastic buffer force in the direction of the test line rail sample 10, and the pressure measuring device 33 is installed on the surface of the pressure head 35. When the pressure is applied by the pressure regulating device, when the pressing block 32 contacts the slider of the test line rail sample 10, the pressure buffer spring 36 begins to be compressed, and the pressure buffer spring 36 can play a buffering role on the pressing block 32 to avoid damaging the slider of the test line rail sample 10.

[0030] The pressure module 3 also includes a height adjustment plate 37 and a height adjustment device. The height adjustment plate 37 is arranged in parallel and spaced relation on one side of the test rail mounting plate 2. The pressure bracket 31 is installed on the height adjustment plate 37 so as to be able to slide back and forth in a straight line along the Z direction. The height adjustment device driving device drives the pressure bracket 31 to slide in the Z direction and stops and positions the pressure bracket 31 when it slides to any height position.

[0031] The height adjustment plate 37 is provided with a Z-direction linear rail 371 extending in a straight line along the Z direction, the pressure bracket 31 is fixedly mounted on the slider of the Z-direction linear rail 371, the height adjustment device comprises a screw rod 38 extending along the Z direction and a height adjustment hand wheel 381 fixed to one end of the screw rod 38, the screw rod 38 is mounted on the height adjustment plate 37 so as to be rotatable in the circumferential direction and axially stop, and the screw rod 38 is movably threadedly connected with the pressure bracket 31. The pressure bracket 31 is adjusted in height by twisting the height adjustment hand wheel 381 until the pressure block 32 and the slider of the test linear rail sample 10 are in a facing and centered state, so as to ensure that the slider pressure applied to the test linear rail sample 10 is accurate.

[0032] The driving module 4 includes a driving bracket 41, a driving motor 42, a synchronous wheel 43 and a synchronous belt 44. The driving bracket 41 is fixedly mounted on the test platform 5. Two synchronous wheels 43 are arranged on the driving bracket 41 at intervals along the X direction, and the two synchronous wheels 43 can rotate around the Y direction on the driving bracket 41. The synchronous belt 44 is tightly sleeved on the outside of the two synchronous wheels 43. The driving motor 42 is fixedly mounted on the test platform 5, and the driving motor 42 drives a synchronous wheel 43 to rotate forward and reversely. The pressure module 3 is fixedly connected to the synchronous belt 44 as the power output component of the driving module 4 to realize linear reciprocating motion. The driving bracket 41 is also fixedly mounted with an X-direction linear guide 45. The pressure module 3 is also fixedly connected to the slider of the X-direction linear guide 45 for guidance. The linear reciprocating sliding of the synchronous belt 44 is realized by the forward and reverse rotation of the driving motor 42, thereby driving the linear reciprocating sliding of the pressure module 3. In addition, the driving module 4 can also adopt a motor and a screw 38 nut mechanism, or a cylinder.

[0033] The test rail mounting plates 2 are two fixedly installed on the test platform 5 at intervals. The side walls of the two test rail mounting plates 2 that are away from each other are respectively provided with mounting holes for fixing and installing the test rail sample 10, and the driving module 4 is arranged between the two test rail mounting plates 2. A crossbeam 6, a connecting plate 7 and a Y-direction linear guide 8 are also provided. The connecting plate 7 can be reciprocated and slid along the X direction and is arranged on the test platform 5. The connecting plate 7 is fixedly connected to the power output component of the driving module 4. The Y-direction linear guide is fixedly installed on the connecting plate 7. The crossbeam 6 is fixedly installed on the slider of the Y-direction linear guide 8 to realize linear sliding along the Y direction. A pressure module 3 is fixedly installed at both ends of the crossbeam 6. The pressure blocks 32 of the two pressure modules 3 respectively press the sliders of the test rail samples 10 on the two test rail mounting plates 2, and the pressure measuring devices 33 on the pressure blocks 32 of the two pressure modules 3 respectively measure the pressure applied to the sliders of the two test rail samples 10 and synchronously transmit signals to the control host 1. The two pressure modules 3 move left and right through the crossbeam 6 and the Y-axis linear guide 8, so that the pressure buffer springs 36 at both ends are in a state of equal force, until the pressure value displayed on the pressure control host 1 meets the set pressure value required for our expected test, and the preparation work before the test operation is completed.

[0034] A test environment simulation box 9 is also provided, and the test platform 5 and the test rail mounting plate 2, the drive module 4 and the pressure module 3 thereon are all arranged in the test environment simulation box 9, and the temperature, humidity and pollutant concentration of the internal environment of the test environment simulation box 9 can be adjusted. A PLC touch screen 91 and an alarm 92 are also provided on the outer wall of the test environment simulation box 9, and the PLC touch screen 91 and the alarm 92 are respectively communicated with the control host 1 by wire or wireless communication, and the PLC touch screen 91 can input preset data to the control host 1, and the control host 1 can also display test data and test results through the PLC touch screen 91, and the control host 1 can also control the alarm 92 to send different alarm signals according to the test results. Through the test environment simulation box 9, various test environments that are the same or similar to the actual use environment of the guide rail slider mechanism can be simulated, so that the test data is more in line with reality, and the PLC touch screen 91 can input test speed data, test pressure data, temperature and humidity data, and pollutant concentration data, etc., and can also display various test data and test results, and the alarm 92 can send different alarms according to the test structure or equipment operation.

[0035] The following actions are debugging preparation actions performed simultaneously on the two test rail samples 10:

[0036] After preliminary alignment with the test product, the pressure block 32 will move forward and backward in a directional manner through the guide rod 311 and compress the guide rod spring 313 until the end face of the pressure block 32 just fits against the slider of the test linear rail sample 10; at this time, the pressure measuring device 33 will have an azimuth deviation from the slider of the test linear rail sample 10, and the height can be adjusted by twisting the height adjustment hand wheel 381. The pressure bracket 31 adjusts the pressure module 3 up and down along the Z-axis linear rail 371 until the pressure block 32 and the slider of the test linear rail sample 10 are in a directly centered state, and then pressure is applied by twisting the pressure adjustment hand wheel 341. The pressure buffer spring 36 is being compressed. At the same time, the pressure modules 3 at both ends of the equipment will move left and right through the crossbeam 6 and the Y-axis linear guide 8, so that the pressure buffer springs 36 at both ends are in a state of equal force application, until the pressure value displayed on the control host 1 meets the set pressure value required for our expected test, and the preparation work before the test operation is completed.

[0037] The operator will start the equipment through the PLC touch screen 91 to start working.

[0038] The following actions are how the driver module 4 operates after the device is started:

[0039] The driving motor 42 is triggered to start through the PLC touch screen 91, and the driving motor 42 axis rotates and connects to the synchronous wheel 43 to rotate at the same speed. At this time, the synchronous belt 44 and the end face of the synchronous wheel 43 are in a bite state. When the synchronous wheel 43 rotates, the synchronous belt 44 will move with the rotation of the synchronous wheel 43. The moving speed of the synchronous belt 44 will change in proportion to the rotation speed of the synchronous wheel 43. The synchronous belt 44 is connected to the connecting plate 7. The connecting plate 7 drags the entire set of pressure module 3 in a straight line reciprocating motion along the X direction according to the directionality of the driving end X-direction linear guide 45 and the drive of the synchronous belt 44, thereby simulating the actual motion state of the device.

Claims

1. A guide rail slider life testing machine, characterized in that: The invention comprises a control host (1), a test track mounting plate (2), a drive module (4), a pressure module (3) and a test platform (5), wherein three mutually perpendicular directions are respectively an X direction, a Y direction and a Z direction, the test track mounting plate extending on an XZ plane is fixedly mounted on the test platform, the test track sample extending along the X direction is fixedly mounted on the test track mounting plate, the pressure module comprises a pressure support (31), a pressure block (32), a pressure measuring device (33) and a pressure regulating device, the pressure support is arranged on one side of the test track mounting plate in parallel and at intervals, the pressure support can be installed on the test platform in a linear reciprocating manner along the X direction, the drive module drives the pressure support to reciprocate linearly, the pressure block can move along the Y direction The pressure block is installed on a pressure support for linear reciprocating motion. The pressure block can press the slider of the test track sample (10) fixedly installed on the test track mounting plate. The pressure measuring device is fixedly installed on the pressure block, and the pressure measuring device can detect the pressure applied by the pressure block on the slider of the test track sample. The pressure measuring device communicates with the control host and transmits the pressure data detected by the pressure measuring device to the control host. The control host can compare the pressure data detected by the pressure measuring device with the pre-stored pressure data to determine whether the pressure applied to the slider of the test track sample reaches a preset value. The pressure regulating device can drive the pressure block to move along the Y direction and stop the pressure block moved to any position. The control host controls the start and stop of the driving module.

2. The guide rail and slider life testing machine according to claim 1, characterized in that: The pressure regulating device comprises a screw rod (34) movably threadedly connected to the pressure support and a pressure regulating hand wheel (341) fixedly connected to one end of the screw rod, and the other end of the screw rod is connected to the pressure block in an axially stopped manner and rotatable in a circumferential direction.

3. The guide rail and slider life testing machine according to claim 1, characterized in that: At least two guide rods (311) extending along the Y direction are arranged at intervals on the pressure support, and at least two guide sleeves (321) are fixedly arranged on the pressure block. The guide sleeves are sleeved on the outside of the guide rods in a one-to-one correspondence.

4. The guide rail and slider life testing machine according to claim 3, characterized in that: The end of the guide rod is formed with a radially outwardly protruding retaining ring (312), and the outer side of the guide rod is sleeved with a guide rod spring (313), and the two ends of the guide rod spring are respectively elastically pressed against the radially outwardly protruding retaining ring and the surface of one end of the guide sleeve facing the test rail sample.

5. The guide rail and slider life testing machine according to claim 1, characterized in that: A pressure head (35) is installed on the pressure block so as to be able to move linearly along the Y direction. A pressure buffer spring (36) is also provided on the pressure block. The pressure buffer spring provides the pressure head with an elastic buffer force in the direction of the test rail sample. The pressure measuring device is installed on the surface of the pressure head.

6. The guide rail and slider life testing machine according to claim 1, characterized in that: The pressure module also includes a height adjustment plate (37) and a height adjustment device. The height adjustment plate is arranged in parallel and spaced relation on one side of the test line rail mounting plate. The pressure bracket is installed on the height adjustment plate so as to be able to slide back and forth in a straight line along the Z direction. The height adjustment device driving device drives the pressure bracket to slide in the Z direction and stops and positions the pressure bracket when it slides to any height position.

7. The guide rail and slider life testing machine according to claim 6, characterized in that: The height adjustment plate is provided with a Z-direction linear rail (371) extending linearly along the Z-direction, the pressure bracket is fixedly mounted on a slider of the Z-direction linear rail, the height adjustment device comprises a screw rod (38) extending along the Z-direction and a height adjustment hand wheel (381) fixed to one end of the screw rod, the screw rod is mounted on the height adjustment plate so as to be rotatable in the circumferential direction and axially stop, and the screw rod is movably threadedly connected to the pressure bracket.

8. The guide rail and slider life testing machine according to claim 1, characterized in that: The driving module comprises a driving bracket (41), a driving motor (42), a synchronous wheel (43) and a synchronous belt (44); the driving bracket is fixedly mounted on the test platform; two synchronous wheels are arranged on the driving bracket in an interval along the X direction, and the two synchronous wheels can rotate around the Y direction on the driving bracket; the synchronous belt is tightly sleeved on the outside of the two synchronous wheels; the driving motor is fixedly mounted on the test platform, and the driving motor drives one synchronous wheel to rotate forward and reversely; the pressure module is fixedly connected to the synchronous belt as a power output component of the driving module to realize linear reciprocating motion; an X-direction linear guide rail (45) is also fixedly mounted on the driving bracket; and the pressure module is also fixedly connected to a slider of the X-direction linear guide rail for guidance.

9. The guide rail and slider life testing machine according to claim 1 or 8, characterized in that: The test rail mounting plates are two fixedly mounted on the test platform at intervals, and mounting holes for fixing and mounting the test rail samples are respectively arranged on the side walls of the two test rail mounting plates which are away from each other, and the drive module is arranged between the two test rail mounting plates, and is also provided with a crossbeam (6), a connecting plate (7) and a Y-direction linear guide (8). The connecting plate is arranged on the test platform and can slide back and forth along the X direction, and the connecting plate is fixedly connected to the power output component of the drive module, the Y-direction linear guide is fixedly mounted on the connecting plate, and the crossbeam is fixedly mounted on the slider of the Y-direction linear guide to achieve linear sliding along the Y direction. A pressure module is respectively fixedly mounted on both ends of the crossbeam, and the pressure blocks of the two pressure modules respectively press the sliders of the test rail samples on the two test rail mounting plates, and the pressure measuring devices on the pressure blocks of the two pressure modules respectively measure the pressure applied to the sliders of the two test rail samples and synchronously transmit the signal to the control host.

10. The guide rail and slider life testing machine according to claim 1, characterized in that: A test environment simulation box (9) is also provided. The test platform and the test rail mounting plate, the drive module and the pressure module thereon are all arranged in the test environment simulation box. The temperature, humidity and pollutant concentration of the internal environment of the test environment simulation box can be adjusted. A PLC touch screen (91) and an alarm (92) are also provided on the outer wall of the test environment simulation box. The PLC touch screen and the alarm respectively communicate with a control host by wire or wireless communication. The PLC touch screen can input preset data to the control host. The control host can also display test data and test results through the PLC touch screen. The control host can also control the alarm to send different alarm signals according to the test results.

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