An angle adjusting device for linear guide rail test
By designing the angle adjustment unit and reset mechanism, precise testing of linear guides at different angles was achieved, solving the problem of low angle adjustment accuracy in existing devices, providing reliable lubrication status data, and improving the authenticity and accuracy of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BEIJING PROSPER PRECISION MACHINE TOOL CO LTD
- Filing Date
- 2026-02-11
- Publication Date
- 2026-05-12
AI Technical Summary
Existing angle adjustment devices for linear guide testing suffer from low angle adjustment accuracy and poor continuous adjustment effect, making it impossible to achieve precise fine-tuning of multiple angles, resulting in insufficient simulation of working conditions for oil film thickness testing.
An angle adjustment unit is adopted, including an adjustment plate, a sliding plate, a drive mechanism, an adjustment mechanism, and a reset mechanism. The angle can be continuously fine-tuned by the cooperation of the inclined surfaces of the sliding plate and the adjustment plate. Combined with the adjustment mechanism and the reset mechanism, the angle can be accurately set and quickly reset. It is used in conjunction with a distance sensor to detect the oil film thickness.
It enables precise testing of linear guides at different tilt angles, provides reliable lubrication status data support, improves the comparability and accuracy of test data, and avoids test data distortion caused by angle fluctuations.
Smart Images
Figure CN121702328B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of mechanical testing equipment, and in particular to an angle adjustment device for testing linear guide rails. Background Technology
[0002] The performance of hydrostatic linear guides directly determines their operating accuracy and service life, and oil film thickness is a core indicator for evaluating the condition of hydrostatic linear guides. The angle adjustment device for hydrostatic linear guide testing, as a key piece of equipment simulating actual tilting conditions of the guide, works by driving a moving platform to move the hydrostatic slider back and forth on the hydrostatic guide. A distance sensor is used to detect the oil film thickness between the hydrostatic guide and the hydrostatic slider in real time at different tilt angles, providing data support for guide performance optimization and quality inspection. However, existing angle adjustment devices for linear guide testing suffer from insufficient angle adjustment accuracy, failing to achieve continuous and precise fine-tuning, resulting in insufficient realism in simulating the working conditions of oil film thickness testing.
[0003] Patent application (CN117740519A) discloses a hydrostatic guide rail performance testing device and method. The device includes a base, a worktable, a pressurizing mechanism, a load monitoring mechanism, an oil supply mechanism, and an oil film monitoring mechanism. The load monitoring mechanism is mounted on the worktable to monitor the pressure exerted on it. The oil supply mechanism supplies oil to the hydrostatic guide rail to create an oil film between the guide rail and the hydrostatic slider. The oil film monitoring mechanism is mounted on the base and monitors the thickness of the oil film. The hydrostatic guide rail performance testing method includes testing steps and calculation steps. While the patent can test the oil film thickness by allowing the hydrostatic slider to reciprocate on the hydrostatic guide rail, it is limited to testing at a single angle and cannot effectively test the oil film by allowing the hydrostatic slider to reciprocate at multiple angles on the hydrostatic guide rail.
[0004] Regarding the aforementioned technologies, the inventors believe that they suffer from drawbacks such as low angle adjustment accuracy and poor continuous adjustment effect. Summary of the Invention
[0005] To address the aforementioned technical problems, this application provides an angle adjustment device for testing linear guide rails.
[0006] This application provides an angle adjustment device for testing linear guide rails, which adopts the following technical solution:
[0007] An angle adjustment device for testing linear guide rails includes a vehicle body. An angle adjustment unit is mounted on the vehicle body, comprising an adjustment plate, a sliding plate, a drive mechanism, an adjustment mechanism, and a reset mechanism. One end of the bottom of the adjustment plate is rotatably mounted on the vehicle body, and the other end of the bottom of the adjustment plate is configured as an adjustment ramp. The top of the sliding plate is configured as a mating ramp, and the mating ramp of the sliding plate abuts against the adjustment ramp of the adjustment plate. The bottom of the sliding plate is slidably mounted on the vehicle body. The drive mechanism is located at one end of the vehicle body, the adjustment mechanism is mounted on the drive mechanism, and the reset mechanism is mounted on the adjustment mechanism. The drive mechanism drives the sliding plate to slide along the direction of the vehicle body. A test unit is mounted on the adjustment plate, and a distance sensor is mounted on the test unit.
[0008] By adopting the above technical solution, an angle adjustment unit is installed on the vehicle body. The angle adjustment unit includes an adjustment plate, a sliding plate, a drive mechanism, an adjustment mechanism, and a reset mechanism. A test unit is installed on the adjustment plate. By utilizing the structure where the adjustment slope of the adjustment plate and the matching slope of the sliding plate abut against each other, the linear sliding of the sliding plate is converted into the angle lifting of the adjustment plate. Moreover, the sliding distance of the sliding plate and the lifting angle of the adjustment plate are correspondingly related, enabling continuous fine-tuning of the angle. The adjustment mechanism can perform multi-dimensional adjustment of the stroke of the drive mechanism pushing the sliding plate, which can meet the performance testing requirements of the linear guide at different tilt angles. At the same time, the adjustment mechanism can adjust the drive mechanism based on the motion feedback of the test unit, forming a certain linkage adjustment effect. The reset mechanism can quickly reset the sliding plate to the origin through the drive mechanism, facilitating the rapid commencement of the next test. The accuracy of the angle adjustment allows the linear guide to be tested stably at the set tilt angle, avoiding test data distortion caused by angle fluctuations. The distance sensor accurately detects the oil film thickness, providing reliable data support for analyzing the lubrication status of the guide at different angles.
[0009] Preferably, the drive mechanism includes a drive cylinder, a drive block, a drive pipeline, a tension / compression cylinder, and a tension / compression rod; the drive cylinder is disposed at one end of the vehicle body, and one end of the drive block is slidably disposed within the drive cylinder; the tension / compression cylinder is disposed on the vehicle body, one end of the tension / compression rod is slidably disposed within the tension / compression cylinder, and the other end of the tension / compression rod is fixedly connected to one end of the sliding plate; one end of the drive pipeline is connected to the drive cylinder, and the other end of the drive pipeline is connected to the tension / compression cylinder.
[0010] By adopting the above technical solution, the drive mechanism connects the drive cylinder and the tension / compression cylinder through the drive pipeline, forming a linked cylinder structure. This allows the power of the drive block to be smoothly transmitted to the tension / compression cylinder through the medium in the pipeline, thereby pushing the tension / compression rod to drive the sliding plate to make linear motion, making the sliding of the sliding plate more stable and accurately converting the sliding of the sliding plate into the angle of the adjustment plate, thus avoiding sudden angle changes caused by power transmission fluctuations.
[0011] Preferably, the adjustment mechanism includes a mounting bracket, an adjustment rod, a drive spring, and a locking device; the mounting bracket is fixedly mounted on the vehicle body; one side of the adjustment rod is longitudinally provided with multiple sets of adjustment slots, and one end of the adjustment rod is fixedly mounted on the drive mechanism; one end of the drive spring is fixedly connected to the top end of the adjustment rod, and the other end of the drive spring is fixedly mounted on the mounting bracket; the locking device is rotatably mounted on the mounting bracket on one side of the adjustment rod, and the locking device cooperates with the adjustment slots on the adjustment rod.
[0012] By adopting the above technical solution, the multiple sets of longitudinal adjustment slots on the adjusting rod can achieve graded positioning of the drive block stroke. With the precise engagement of the locking device, the displacement of the sliding plate pushed by the tension cylinder can be precisely controlled, thereby achieving precise graded adjustment of the lifting angle of the adjusting plate. The adjustment slots can avoid positional deviation after adjustment, ensuring consistency in each angle setting, meeting the precise testing requirements of linear guides at different fixed angles, and improving the comparability of test data. The cooperation structure between the locking device and the adjusting slots is simple. The limit can be released simply by rotating the locking device, and the elastic force of the drive spring assists the adjusting rod to reset or move. The drive spring provides assistance for the movement of the adjusting rod.
[0013] Preferably, the locking device includes a rotating rod, a return spring, a locking rod, and a top rod; the rotating rod is rotatably mounted on the mounting frame, one end of the locking rod is fixedly connected to one end of the rotating rod, and one end of the top rod is fixedly connected to the other end of the rotating rod; the return spring is sleeved on the top rod, one end of the return spring is fixedly connected to the top rod, and the other end of the return spring is fixedly connected to the mounting frame; the other end of the locking rod abuts against the adjusting slot, and the other end of the top rod abuts against the test unit.
[0014] By adopting the above technical solution, the locking rod is tightly abutted against the adjusting groove by the elastic force of the return spring, forming a reliable mechanical limit. This effectively fixes the position of the adjusting rod, preventing displacement of the adjusting rod due to the operation of the drive mechanism or vibration of the device, thereby ensuring the stability of the adjustment plate angle. The push rod is directly connected to the test unit. The test unit can detect and push the push rod to drive the rotating rod to rotate, causing the locking rod to instantly disengage from the adjusting groove, realizing the rapid release of the limit. When the test unit is removed, the return spring can quickly pull the push rod and the rotating rod to reset the locking.
[0015] Preferably, the reset mechanism includes a chain, multiple sets of sprockets, a guide drum, a traction rope, and a stop structure; the multiple sets of sprockets are rotatably disposed above the mounting frame, and the chain is engaged with the multiple sets of sprockets; the guide drum is disposed on the outermost set of sprockets; one end of the traction rope is fixedly disposed on the upper part of the chain, and the other end of the traction rope is fixedly disposed on the top of the adjusting rod, and the traction rope is draped on the guide drum; the stop structure is disposed on the lower part of the chain.
[0016] By adopting the above technical solution, when the adjusting rod slides, the chain is driven to rotate along the sprocket by the traction rope. The gear structure moves with the chain to the predetermined position, forming a reset positioning point corresponding to the adjustment stroke. This ensures that the adjusting rod can return to the precise origin each time it is reset. The reset action is linked with the test unit. When the test unit moves, it synchronously abuts against the top rod and the gear structure. The chain can be triggered to rotate in the opposite direction without an additional drive source. Then, the adjusting rod is pulled to reset by the traction rope, realizing a closed loop of synchronous reset after the test.
[0017] Preferably, the gear shift structure includes a hydraulic cylinder, a gear shift lever, and two sets of stop levers; the two sets of stop levers are respectively disposed on the mounting brackets on both sides of the lower part of the chain; a gear shift cavity is provided inside the hydraulic cylinder, and one end of the gear shift lever is slidably disposed in the gear shift cavity; an activation cavity is provided at the upper part of the hydraulic cylinder, and an activation lever is slidably disposed in the activation cavity, the activation cavity being in communication with the gear shift cavity; a recovery cavity is provided at the lower part of the hydraulic cylinder, and a recovery lever is slidably disposed in the recovery cavity, the recovery cavity being in communication with the gear shift cavity; the two sets of stop levers are respectively used to abut against the activation lever and the recovery lever.
[0018] By adopting the above technical solution and through the interconnected design of the starting chamber, the recovery chamber, and the gear shift chamber, the mechanical resistance force of the stop rod on the starting rod and the recovery rod is converted into pressure changes within the hydraulic chamber. This drives the gear shift rod to extend or retract smoothly. When the hydraulic cylinder moves to one end with the chain, the gear shift rod automatically extends to cooperate with the test unit to complete the reset trigger; when it moves to the other end, the gear shift rod automatically retracts. The entire process requires no manual intervention, which can both connect the reset steps after the previous round of testing and clear obstacles for the next round of angle adjustment, avoiding mechanical obstruction of the extended gear shift rod to the sliding plate, the angle adjustment of the adjustment plate, and other actions.
[0019] Preferably, the testing unit includes two sets of guide rail assemblies, a linear motor, multiple sets of hydrostatic sliders, and a moving platform. The two sets of guide rail assemblies are respectively disposed on both sides of the adjustment plate. Each guide rail assembly includes a hydrostatic guide rail, a side guide rail, and a pressure plate. The hydrostatic guide rail is fixedly disposed on the adjustment plate, the side guide rail is disposed on the outer side of the hydrostatic guide rail, and the pressure plate is disposed on the side guide rail. The linear motor is disposed on the adjustment plate and is located between the two sets of guide rail assemblies. The top of the multiple sets of hydrostatic sliders is disposed on the bottom of the moving platform, and the bottom of the multiple sets of hydrostatic sliders is slidably disposed on the hydrostatic guide rail. The linear motor is used to drive the moving platform to slide along the hydrostatic guide rail.
[0020] By adopting the above technical solution, the hydrostatic guide rail and hydrostatic slider cooperate to achieve contactless sliding through oil film support. The friction coefficient is extremely low, which can effectively reduce resistance fluctuations and wear during the sliding process, allowing the moving platform to run smoothly along the guide rail assembly and avoiding vibration or deviation caused by mechanical contact. The linear motor directly drives the moving platform, with a short transmission path and no intermediate transmission components, eliminating backlash and errors caused by gears, lead screws, and other transmissions. This enables high-precision linear motion control. Two sets of guide rail assemblies are symmetrically arranged on both sides of the adjustment plate, and multiple sets of hydrostatic sliders support the moving platform. The force is uniform and the load-bearing capacity is strong, which can stably support the moving platform and the test components above it. Even when the adjustment plate is tilted, the operating stability of the moving platform can still be guaranteed, avoiding test deviations caused by uneven load. The design of the side guide rail and pressure plate can limit the lateral displacement of the hydrostatic slider, further improving the operating accuracy of the moving platform. At the same time, different specifications of hydrostatic sliders or adjustments to the spacing of guide rail assemblies can be made according to test requirements to adapt to linear guide rail test scenarios of different sizes and weights.
[0021] Preferably, a moving rod is provided on one side of the moving platform, and the moving rod is used to abut against the adjusting mechanism.
[0022] Preferably, the two ends of the adjustment plate are provided with multiple sets of buffer rods.
[0023] By adopting the above technical solution, when the adjustment plate is raised or reset to the limit angle, the buffer rod can flexibly contact the vehicle body or related components to absorb impact energy, avoid rigid collision between the adjustment plate and the vehicle body, reduce vibration during the angle adjustment process, prevent the adjustment plate, sliding plate and other transmission components from deforming or wearing due to impact, and protect the test unit and distance sensor to avoid vibration affecting the detection accuracy.
[0024] Preferably, the distance sensor is a displacement sensor.
[0025] By adopting the above technical solution, the displacement sensor is specially designed for detecting minute displacements. Its resolution and measurement accuracy are far superior to ordinary distance sensors. It can accurately capture subtle changes in oil film thickness, avoid test result distortion caused by detection errors, and output a stable signal with good linearity. It can convert oil film thickness into accurate electrical signal data, which is convenient for subsequent data acquisition and analysis, and provides a reliable basis for judging the lubrication performance of linear guides.
[0026] In summary, this application includes at least one of the following beneficial technical effects:
[0027] 1. Multiple sets of longitudinal adjustment slots on the adjusting rod enable graded positioning of the drive block stroke. Combined with the precise engagement of the locking device, this allows for accurate control of the displacement of the sliding plate pushed by the tension / pressure cylinder, thereby achieving precise graded adjustment of the plate's lifting angle. The adjustment slots prevent positional shifts after adjustment, ensuring consistency in each angle setting. This meets the precise testing requirements of linear guides at different fixed angles, improving the comparability of test data. The locking device and adjustment slots have a simple working structure; simply rotating the locking device releases the limit, and the elastic force of the drive spring assists the adjusting rod in resetting or moving. The drive spring provides power to the movement of the adjusting rod.
[0028] 2. When the adjusting rod slides, the chain is driven to rotate along the sprocket by the traction rope. The gear structure moves with the chain to the predetermined position, forming a reset positioning point corresponding to the adjustment stroke. This ensures that the adjusting rod returns to the precise origin each time it is reset. The reset action is linked with the test unit. When the test unit moves, it synchronously abuts against the top rod and the gear structure. No additional drive source is needed to trigger the chain to rotate in the opposite direction. Then, the adjusting rod is pulled to reset by the traction rope, realizing a closed loop of synchronous reset after the test. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the overall structure in the embodiment.
[0030] Figure 2 This is a cross-sectional schematic diagram of the internal structure of the drive mechanism in the embodiment.
[0031] Figure 3 This is a schematic diagram of the adjustment mechanism in the embodiment.
[0032] Figure 4 This is a schematic diagram of the reset mechanism in the embodiment.
[0033] Figure 5 This is a cross-sectional schematic diagram of the internal structure of the gear shifter in the embodiment.
[0034] Figure 6 This is a schematic diagram of the test unit in the embodiment.
[0035] Explanation of reference numerals in the attached drawings: 1. Vehicle body; 2. Angle adjustment unit; 21. Adjustment plate; 211. Adjustment ramp; 22. Sliding plate; 221. Mating ramp; 23. Drive mechanism; 231. Drive cylinder; 232. Drive block; 233. Drive pipeline; 234. Pull-press cylinder; 235. Pull-press rod; 24. Adjustment mechanism; 241. Mounting bracket; 242. Adjustment rod; 2421. Adjustment slot; 243. Drive spring; 244. Snap-fit device; 2441. Rotating rod; 2442. Return spring; 2443. Snap-fit rod; 2444. Push rod; 25. Return mechanism; 251. Chain; 252. Sprocket; 253. Guide drum; 254. Traction rope; 255. Gear structure; 2551. Hydraulic cylinder; 2552. Gear lever; 2553. Stop lever; 2554. Gear chamber; 2555. Starting chamber; 2556. Starting rod; 2557. Recovery chamber; 2558. Recovery rod; 3. Test unit; 31. Guide rail assembly; 311. Static pressure guide rail; 312. Side guide rail; 313. Pressure plate; 32. Linear motor; 33. Static pressure slider; 34. Moving platform; 341. Moving rod; 4. Buffer rod; 5. Distance sensor. Detailed Implementation
[0036] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.
[0037] This application discloses an angle adjustment device for testing linear guide rails. (Refer to...) Figure 1 The system includes a vehicle body 1, on which an angle adjustment unit 2 is mounted. The angle adjustment unit 2 includes an adjustment plate 21, a sliding plate 22, a drive mechanism 23, an adjustment mechanism 24, and a reset mechanism 25. One end of the bottom of the adjustment plate 21 is rotatably mounted on the vehicle body 1, and the other end of the bottom of the adjustment plate 21 is configured as an adjustment slope 211. The top of the sliding plate 22 is configured as a mating slope 221, which abuts against the adjustment slope 211 of the adjustment plate 21. The bottom of the sliding plate 22 is slidably mounted on the vehicle body 1. The drive mechanism 23 is located at one end of the vehicle body 1. The adjustment mechanism 24 is mounted on the drive mechanism 23, and the reset mechanism 25 is mounted on the adjustment mechanism 24. The drive mechanism 23 is used to drive the sliding plate 22 to slide along the vehicle body 1. The adjustment plate 21 is equipped with a test unit 3, and the test unit 3 is equipped with a distance sensor 5, wherein the distance sensor 5 is a displacement sensor. The adjustment mechanism 24 is triggered by the test unit 3, which causes the drive mechanism 23 to move and push the sliding plate 22 to slide. The sliding plate 22 is engaged with the adjustment slope 211 at the bottom of the adjustment plate 21, which causes the adjustment plate 21 to rotate, thus completing the multi-angle test.
[0038] Reference Figure 1 and Figure 6The test unit 3 includes two sets of guide rail assemblies 31, a linear motor 32, multiple sets of static pressure sliders 33, and a moving platform 34. The two sets of guide rail assemblies 31 are respectively arranged on both sides of the adjustment plate 21. Each guide rail assembly 31 includes a static pressure guide rail 311, a side guide rail 312, and a pressure plate 313. The static pressure guide rail 311 is fixedly arranged on the adjustment plate 21, the side guide rail 312 is arranged outside the static pressure guide rail 311, and the pressure plate 313 is arranged on the side guide rail 312. The linear motor 32 is arranged on the adjustment plate 21 and is located between the two sets of guide rail assemblies 31. The top of the static pressure slider 33 is set at the bottom of the moving platform 34, and the bottom of multiple sets of static pressure sliders 33 are slidably set on the static pressure guide rail 311; the linear motor 32 is used to drive the moving platform 34 to slide along the static pressure guide rail 311; a moving rod 341 is set on one side of the moving platform 34, and the moving rod 341 is used to abut against the adjustment mechanism 24; multiple sets of buffer rods 4 are set at both ends of the adjustment plate 21; the moving platform 34 moves the static pressure slider 33 to slide back and forth on the static pressure guide rail 311, and then the distance sensor 5 detects the oil film between the static pressure slider 33 and the static pressure guide rail 311.
[0039] Reference Figure 1 and Figure 2 The drive mechanism 23 includes a drive cylinder 231, a drive block 232, a drive pipe 233, a tension / pressure cylinder 234, and a tension / pressure rod 235. The drive cylinder 231 is located at one end of the vehicle body 1, and one end of the drive block 232 is slidably located inside the drive cylinder 231. The tension / pressure cylinder 234 is located on the vehicle body 1, and one end of the tension / pressure rod 235 is slidably located inside the tension / pressure cylinder 234. The other end of the tension / pressure rod 235 is fixedly connected to one end of the sliding plate 22. One end of the drive pipe 233 is connected to the drive cylinder 231, and the other end of the drive pipe 233 is connected to the tension / pressure cylinder 234. The adjustment mechanism 24 pushes the drive block 232 to slide downward along the drive cylinder 231, and through the pressure medium and the drive pipe 233, causes the tension / pressure rod 235 to slide out of the tension / pressure cylinder 234. The tension / pressure rod 235 drives the sliding plate 22 to slide and control the rotation angle of the adjustment plate 21.
[0040] Reference Figure 1 and Figure 3The adjustment mechanism 24 includes a mounting bracket 241, an adjusting rod 242, a drive spring 243, and a locking device 244. The mounting bracket 241 is fixedly mounted on the vehicle body 1. Multiple sets of adjusting slots 2421 are longitudinally arranged on one side of the adjusting rod 242, and one end of the adjusting rod 242 is fixedly mounted on the drive block 232 in the drive mechanism 23. One end of the drive spring 243 is fixedly connected to the top of the adjusting rod 242, and the other end of the drive spring 243 is fixedly mounted on the mounting bracket 241. The locking device 244... A mounting bracket 241 is rotatably mounted on one side of the adjusting rod 242. A locking device 244 engages with an adjusting slot 2421 on the adjusting rod 242. The locking device 244 includes a rotating rod 2441, a return spring 2442, a locking rod 2443, and a push rod 2444. The rotating rod 2441 is rotatably mounted on the mounting bracket 241. One end of the locking rod 2443 is fixedly connected to one end of the rotating rod 2441, and one end of the push rod 2444 is fixedly connected to the other end of the rotating rod 2441. The return spring 2442... 442 is sleeved on the top rod 2444. One end of the return spring 2442 is fixedly connected to the top rod 2444, and the other end of the return spring 2442 is fixedly connected to the mounting bracket 241. The other end of the locking rod 2443 abuts against the adjusting slot 2421. The other end of the top rod 2444 is used to abut against the moving rod 341 in the test unit 3. When the moving platform 34 in the test unit 3 slides to one end of the adjusting mechanism 24, the moving rod 341 abuts against the top rod 2444, causing the rotating rod 2441 to rotate. When the drive lever 2443 disengages from the adjustment slot 2421 on one side of the adjustment lever 242, the adjustment lever 242 is driven to slide by the force of the drive spring 243, causing the drive mechanism 23 to drive the sliding plate 22 to slide. When the moving platform 34 slides away, the moving lever 341 releases the top lever 2444, and the force of the reset spring 2442 causes the rotating lever 2441 to reset and rotate, driving the lever 2443 to engage in the next set of adjustment slots 2421, and so on, to perform multi-angle testing on the test unit 3.
[0041] Reference Figure 4 and Figure 5The reset mechanism 25 includes a chain 251, multiple sets of sprockets 252, a guide drum 253, a traction rope 254, and a stop structure 255. The multiple sets of sprockets 252 are rotatably mounted above the mounting frame 241, and the chain 251 is meshed and sleeved on the multiple sets of sprockets 252. The guide drum 253 is mounted on the outermost set of sprockets 252. One end of the traction rope 254 is fixedly mounted on the upper part of the chain 251, and the other end is fixedly mounted on the top of the adjusting rod 242. The traction rope 254 rests on the guide drum 253. The stop structure 255... 5 is located at the lower part of the chain 251; the gear shift structure 255 includes a hydraulic cylinder 2551, a gear shift lever 2552, and two sets of stop levers 2553; the two sets of stop levers 2553 are respectively mounted on the mounting brackets 241 on both sides of the lower part of the chain 251; a gear shift cavity 2554 is provided inside the hydraulic cylinder 2551, and one end of the gear shift lever 2552 is slidably disposed in the gear shift cavity 2554; an actuation cavity 2555 is provided at the upper part of the hydraulic cylinder 2551, and an actuation rod 2556 is slidably disposed inside the actuation cavity 2555. The actuation cavity 2555 and the gear shift cavity are connected. The body 2554 is connected; a recovery chamber 2557 is provided at the lower part of the hydraulic cylinder 2551, and a recovery rod 2558 is slidably arranged in the recovery chamber 2557. The recovery chamber 2557 is connected to the gear chamber 2554; two sets of stop rods 2553 are used to abut against the start rod 2556 and the recovery rod 2558 respectively. The traction rope 254 is set on the adjusting rod 242. As the adjusting rod 242 slides down, the traction rope 254 drives the chain 251 to rotate. The rotation of the chain 251 drives the hydraulic cylinder 2551 to move. When the adjusting rod 242 moves to the designated position... When the hydraulic cylinder 2551 is in position, it moves to the corresponding stop rod 2553. The stop rod 2553 presses against the start rod 2556, driving the gear lever 2552 to slide downward. At this time, when the moving platform 34 moves again close to the reset mechanism 25, the moving rod 341 of the moving platform 34 can simultaneously press against the top rod 2444 and the gear lever 2552, so that the adjusting rod is reset. When the hydraulic cylinder 2551 is moved to the other end, another set of stop rods 2553 presses against the retraction rod 2558, so that the gear lever 2552 is retracted, preventing obstruction of the operation of the adjusting mechanism 24.
[0042] The working principle of the angle adjustment device for linear guide testing in this application is as follows: The linear motor 32 drives the moving platform 34, which in turn drives the bottom static pressure slider 33 to slide back and forth along the static pressure guide rail 311 on the adjustment plate 21. The moving rod 341 on one side of the moving platform 34 is used to trigger the subsequent reset mechanism 25 and the adjustment mechanism 24. At the same time, the distance sensor 5 detects the oil film state between the static pressure slider 33 and the static pressure guide rail 311 in real time. The buffer rods 4 at both ends of the adjustment plate 21 can prevent the moving platform 34 from colliding when it slides. When the moving platform 34 slides to one end of the adjustment mechanism 24, the moving rod 341 abuts against it. The push rod 2444 of the snap-fit device 244 drives the rotating rod 2441 to rotate. The snap-fit rod 2443 at one end of the rotating rod 2441 disengages from the adjusting slot 2421 on the adjusting rod 242, releasing the lock on the adjusting rod 242. The drive spring 243 releases its elastic force, pushing the adjusting rod 242 to slide downward, initiating the subsequent drive action. After the moving platform 34 leaves, the reset spring 2442 drives the rotating rod 2441 to reset, and the snap-fit rod 2443 snaps into the next set of adjusting slots 2421, preparing for the next trigger. When the adjusting rod 242 slides downward, it pushes the drive mechanism 23. Block 232 moves downward along the drive cylinder 231. The pressure medium inside the drive cylinder 231 is transmitted to the tension cylinder 234 through the drive pipe 233, pushing the tension rod 235 outward. The tension rod 235 drives the sliding plate 22 to slide along the vehicle body 1. The mating inclined surface 221 at the top of the sliding plate 22 interacts with the adjusting inclined surface 211 at the bottom of the adjusting plate 21. One end of the adjusting plate 21 rotates around the vehicle body 1 to achieve the switching of the test angle and meet the multi-angle test requirements. When the adjusting rod 242 slides downward, it drives the chain 251 to rotate through the traction rope 254, thereby driving the hydraulic cylinder 2551 to move. When the adjusting rod 242 moves to the designated position, the hydraulic cylinder 2551 is stopped by the corresponding stop rod 2553. The starting rod 2556 is pressure-driven to extend the gear lever 2552 downward. When the moving platform 34 approaches the reset mechanism 25 again, the moving rod 341 simultaneously stops the top rod 2444 and the gear lever 2552, causing the adjusting rod 242 to reset. The traction rope 254 pulls the chain 251 to rotate in the opposite direction. When the hydraulic cylinder 2551 moves to the other end, another set of stop rods 2553 stops the retraction rod 2558, and the gear lever 2552 retracts, avoiding obstruction of subsequent adjustment actions and realizing cyclic testing.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An angle adjustment device for testing linear guide rails, characterized in that: The system includes a vehicle body (1), on which an angle adjustment unit (2) is provided. The angle adjustment unit (2) includes an adjustment plate (21), a sliding plate (22), a drive mechanism (23), an adjustment mechanism (24), and a reset mechanism (25). One end of the bottom of the adjustment plate (21) is rotatably mounted on the vehicle body (1), and the other end of the bottom of the adjustment plate (21) is configured as an adjustment slope (211). The top of the sliding plate (22) is configured as a mating slope (221), and the mating slope (221) of the sliding plate (22) abuts against the adjustment slope (211) of the adjustment plate (21). The bottom of the sliding plate (22) is slidably mounted on the vehicle body (1). The drive mechanism (23) The adjustment mechanism (24) is located at one end of the vehicle body (1), and the reset mechanism (25) is located on the drive mechanism (23). The drive mechanism (23) is used to drive the sliding plate (22) to slide along the direction of the vehicle body (1). A test unit (3) is provided on the adjustment plate (21), and a distance sensor (5) is provided on the test unit (3). The test unit (3) includes two sets of guide rail assemblies (31), a linear motor (32), multiple sets of static pressure sliders (33), and a moving platform (34). A moving rod (341) is provided on one side of the moving platform (34), and the moving rod (341) is used to abut against the adjustment mechanism (24). The adjustment mechanism (24) includes a mounting bracket (241), an adjustment rod (242), a drive spring (243), and a locking device (244); the mounting bracket (241) is fixedly mounted on the vehicle body (1); multiple sets of adjustment slots (2421) are longitudinally arranged on one side of the adjustment rod (242), and one end of the adjustment rod (242) is fixedly mounted on the drive mechanism (23); one end of the drive spring (243) is fixedly connected to the top end of the adjustment rod (242), and the other end of the drive spring (243) is fixedly mounted on the mounting bracket (241); the locking device (244) is rotatably mounted on the mounting bracket (241) on one side of the adjustment rod (242), and the locking device (244) cooperates with the adjustment slots (2421) on the adjustment rod (242); The locking device (244) includes a rotating rod (2441), a return spring (2442), a locking rod (2443), and a top rod (2444). The rotating rod (2441) is rotatably mounted on the mounting frame (241). One end of the locking rod (2443) is fixedly connected to one end of the rotating rod (2441), and one end of the top rod (2444) is fixedly connected to the other end of the rotating rod (2441). The return spring (2442) is sleeved on the top rod (2444). One end of the return spring (2442) is fixedly connected to the top rod (2444), and the other end of the return spring (2442) is fixedly connected to the mounting frame (241). The other end of the locking rod (2443) abuts against the adjusting slot (2421), and the other end of the top rod (2444) abuts against the test unit (3).
2. The angle adjustment device for testing linear guide rails according to claim 1, characterized in that: The drive mechanism (23) includes a drive cylinder (231), a drive block (232), a drive pipe (233), a tension / compression cylinder (234), and a tension / compression rod (235). The drive cylinder (231) is disposed at one end of the vehicle body (1), and one end of the drive block (232) is slidably disposed within the drive cylinder (231). The tension / compression cylinder (234) is disposed on the vehicle body (1), and one end of the tension / compression rod (235) is slidably disposed within the tension / compression cylinder (234), while the other end of the tension / compression rod (235) is fixedly connected to one end of the sliding plate (22). One end of the drive pipe (233) is connected to the drive cylinder (231), and the other end of the drive pipe (233) is connected to the tension / compression cylinder (234).
3. The angle adjustment device for testing linear guide rails according to claim 1, characterized in that: The reset mechanism (25) includes a chain (251), multiple sets of sprockets (252), a guide drum (253), a traction rope (254), and a stop structure (255). The multiple sets of sprockets (252) are rotatably mounted above the mounting frame (241), and the chain (251) is meshed and sleeved on the multiple sets of sprockets (252). The guide drum (253) is mounted on the outermost set of sprockets (252). One end of the traction rope (254) is fixedly mounted on the upper part of the chain (251), and the other end of the traction rope (254) is fixedly mounted on the top of the adjusting rod (242). The traction rope (254) rests on the guide drum (253). The stop structure (255) is located at the lower part of the chain (251).
4. The angle adjustment device for testing linear guide rails according to claim 3, characterized in that: The gear shift structure (255) includes a hydraulic cylinder (2551), a gear shift lever (2552), and two sets of stop levers (2553); the two sets of stop levers (2553) are respectively mounted on the mounting brackets (241) on both sides of the lower part of the chain (251); a gear shift cavity (2554) is provided inside the hydraulic cylinder (2551), and one end of the gear shift lever (2552) is slidably disposed in the gear shift cavity (2554); an actuation cavity (2555) is provided on the upper part of the hydraulic cylinder (2551), and the actuation cavity... A starting rod (2556) is slidably disposed inside the body (2555), and the starting cavity (2555) is connected to the gear position cavity (2554); a recovery cavity (2557) is disposed at the lower part of the hydraulic cylinder (2551), and a recovery rod (2558) is slidably disposed inside the recovery cavity (2557), and the recovery cavity (2557) is connected to the gear position cavity (2554); two sets of abutting rods (2553) are respectively used to abut against the starting rod (2556) and the recovery rod (2558).
5. The angle adjustment device for testing linear guide rails according to claim 1, characterized in that: Two sets of guide rail assemblies (31) are respectively disposed on both sides of the adjustment plate (21). Each guide rail assembly (31) includes a hydrostatic guide rail (311), a side guide rail (312), and a pressure plate (313). The hydrostatic guide rail (311) is fixedly disposed on the adjustment plate (21), the side guide rail (312) is disposed on the outside of the hydrostatic guide rail (311), and the pressure plate (313) is disposed on the side guide rail (312). The linear motor (32) is disposed on the adjustment plate (21) and is located between the two sets of guide rail assemblies (31). The top of multiple sets of hydrostatic sliders (33) is disposed on the bottom of the moving platform (34), and the bottom of multiple sets of hydrostatic sliders (33) is slidably disposed on the hydrostatic guide rail (311). The linear motor (32) is used to drive the moving platform (34) to slide along the hydrostatic guide rail (311).
6. The angle adjustment device for testing linear guide rails according to claim 1, characterized in that: Multiple sets of buffer rods (4) are provided at both ends of the adjustment plate (21).
7. The angle adjustment device for testing linear guide rails according to claim 1, characterized in that: The distance sensor (5) is a displacement sensor.