A linear guide rail test static pressure slider mounting and dismounting device

Abstract

The application relates to a static pressure slider mounting and dismounting device for linear guide rail testing, belongs to the linear guide rail performance testing field, is used for mounting a slider to a sliding plate which is slidably arranged on a test bed body, and further comprises a clamping plate which is slidably arranged on the sliding plate, a clamping space is formed between the clamping plate and the sliding plate, the clamping space is used for clamping or releasing the slider, one end of the test bed body is provided with a positioning assembly, and the positioning assembly is used for driving the sliding plate to move, so that the sliding plate is moved to a specified position to mount the slider. When the working condition of frequently mounting and dismounting the slider is needed, the slider can be quickly and stably dismounted.

Description

Technical Field

[0001] This application relates to the technical field of linear guide testing, and in particular to a hydrostatic slider installation and removal device for linear guide testing. Background Technology

[0002] Linear guides, as key components in modern mechanical transmission systems, are widely used in machine tools, automation equipment, electronic manufacturing equipment, and many other fields. Their performance directly affects the accuracy, stability, and service life of the equipment. In the research, development, production, and quality inspection of linear guides, performance testing is a crucial step in ensuring product quality. The slider, as the core moving component in the linear guide system, undergoes frequent installation and disassembly during the testing process. Existing guide testing equipment typically requires verifying various data under different loads, which significantly increases the difficulty of slider installation. Furthermore, as a precision component, even small errors in the guide can affect the test results.

[0003] The existing patent document with authorization number CN 117433766 B describes how to ensure that the testing device can install different types of guide rails, but it does not take into account the installation problem of the slider when the testing device frequently changes the guide rails.

[0004] In response to the aforementioned technologies, the inventors have proposed a slider installation and removal device to address the problem that slider installation and removal are difficult and cannot achieve fast and stable installation. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application provides a hydrostatic slider installation and removal device for testing linear guide rails.

[0006] This application provides a hydrostatic slider installation and removal device for testing linear guide rails, which adopts the following technical solution: A hydrostatic slider installation and removal device for linear guide testing is used to install a slider onto a slide plate that is slidably mounted on a test bed. The device further includes: a clamping plate slidably mounted on the slide plate, forming a clamping space between the clamping plate and the slide plate, the clamping space being used to clamp or release the slider; and a positioning component is provided at one end of the test bed, the positioning component being used to move the slide plate to a designated position to install the slider.

[0007] Preferably, the slide plate also has a slot, and the positioning component includes: a column at one end of the test bed; a lifting platform that is raised and lowered on the column, and a telescopic component on the lifting platform; the telescopic component has a telescopic end; a locking block is provided on the telescopic end, and the locking block enters or leaves the slot after the lifting platform is raised or lowered, so that the telescopic component drives or cancels the movement of the slide plate.

[0008] Preferably, the slide plate has a first liquid path, and there is a liquid storage space between the clamp and the slide plate. The first liquid path is connected to the liquid storage space. High-pressure oil enters the liquid storage space through the first liquid path and drives the clamp to slide by its own pressure.

[0009] Preferably, the slider has a liquid inlet and a liquid inlet pipe, and the clamping plate has an opening. After the clamping plate slides and clamps the slider, the liquid inlet pipe enters the opening. The slider also includes a one-way valve plate on the clamping plate, which is used to close the opening. After the liquid inlet pipe enters the opening, it pushes open the one-way valve plate. The sliding plate is also equipped with an electromagnet, which is used to attract the clamping plate and clamp the slider.

[0010] Preferably, the slide plate has a plurality of positioning holes, the positioning holes being in communication with the liquid storage space, and further includes: a positioning pin and an elastic element disposed within the positioning holes, the positioning pin being slidably disposed within the positioning holes, and the elastic element having its two ends respectively disposed on the positioning pin and the slide plate, the elastic element being used to provide force for the positioning pin to enter the positioning holes; the slide plate is also provided with a solenoid valve, the solenoid valve being used to control the opening and closing of the positioning holes and the liquid storage space.

[0011] Preferably, the test bed has a bearing platform at one end near the positioning component, and a plurality of bearing rollers are rotatably arranged on the bearing platform, the plurality of bearing rollers being arrayed and spaced apart on the bearing platform.

[0012] Preferably, the slide plate is detachably provided with a mounting block, which is used to adapt to the slider of different specifications.

[0013] Preferably, the test bed is provided with several buffer frames at both ends; the buffer frames have buffer components, which are used to prevent the slide from hitting the two ends of the test bed.

[0014] Preferably, the slide plate is provided with a hydraulic damper, which is connected to the inlet of the first liquid path and is used to stabilize the oil pressure entering the first liquid path.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. This solution uses a semi-automatic installation method for the slider. Operators only need to place the slider to be installed in the designated position to achieve quick and stable installation. The installation process is fully automatic and does not require complicated operations by the operator to ensure the installation position and stability.

[0016] 2. The slider in this solution is disassembled automatically. Its structure not only enables rapid installation, but also rapid disassembly. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the slider's structure; Figure 2 This is a structural diagram of the test bed and slide plate in this scheme; Figure 3 This is a structural diagram of the test bed and positioning components in this solution; Figure 4 This is a schematic diagram of the skateboard structure in this design; Figure 5 This is a structural diagram of the skateboard from another perspective in this design; Figure 6 This is a sectional view of the clamping plate in this design; Figure 7 This is a cross-sectional view of the skateboard in this design; Figure 8 This is a schematic diagram of the mounting block in this scheme.

[0018] Explanation of reference numerals in the attached figures: 1. Slider; 2. Test bed; 3. Slide plate; 320. Clamping plate; 330. Clamping space; 4. Positioning assembly; 410. Column; 420. Lifting platform; 430. Telescopic component; 431. Telescopic end; 440. Locking block; 350. First liquid passage; 360. Liquid storage space; 110. Liquid inlet; 120. Liquid inlet pipe; 321. Opening; 322. One-way valve plate; 323. Electromagnet; 370. Positioning hole; 450. Positioning pin; 460. Elastic component; 470. Solenoid valve; 5. Bearing platform; 510. Bearing roller; 380. Mounting block; 6. Buffer frame; 610. Buffer component; 7. Hydraulic buffer. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0020] This application discloses a slider 1 installation and removal device for testing linear guide rails. (Refer to...) Figures 1-3 The testing principle of the testing device in this application is as follows: The device monitors the data of the hydrostatic guide rail under no-load and under a certain load. Then, the hydrostatic guide rail is given a certain running speed, which is increased by 10% of the maximum rated running speed each time, and each time it runs for 5 minutes, until the rated maximum speed of 75 m / min is reached. The change in oil film thickness during each speed change is measured. If the oil film still exists (oil film thickness is not 0) when running stably in the speed range of 30-75 m / min, it indicates that the product's running speed meets the design requirements.

[0021] In actual testing processes, it is often necessary to replace different guide rails and sliders 1 to test different products. While there are various patents for guide rail replacement methods, replacing slider 1 remains a significant challenge in actual testing. This solution addresses this issue. Figure 1 The diagram shows a portion of the testing device's structure. The test bed 2 is generally rectangular, but can also be cylindrical, triangular prism, or other shapes. Its top center has a flat surface for the sliding plate 3 to slide on; this can also be a groove or an inclined surface, as long as the guide rail can be properly installed on the test bed 2 and the sliding plate 3 is not affected by the test bed 2 during sliding. In this design, the sliding plate 3 is square, but can also be circular, triangular, or other shapes. As long as it can slide normally and its shape does not affect the experimental results, it meets the usage requirements.

[0022] Figure 5 The diagram showcases the structure of the slide plate 3 and the clamping plate 320. The clamping plate 320 is slidably mounted on the slide plate 3. By sliding on the slide plate 3, the distance between the clamping plate 3 and the slide plate 3 is changed, thus creating an adjustable clamping space 330. Utilizing lever principles or hydraulic / pneumatic driving methods, the clamping plate 320 can clamp or release the slider 1. When clamping the slider 1, the clamping plate 320 is driven to move towards the slider 1, reducing the clamping space 330 until the slider 1 is securely clamped. When releasing the slider 1, the operation is reversed, expanding the clamping space 330. The clamping plate 320 is made of alloy material, and its surface flatness after processing is within 0.1mm, ensuring clamping stability. A very thin rubber pad is present at the contact point between the clamping plate 320 and the slider 1 to prevent damage to the surface of the slider 1.

[0023] Reference Figure 3 One end of the test bed 2 is the positioning component 4 of this solution. The positioning component 4 fixes the slide plate 3 by engaging with the slot on the slide plate 3 via a locking block 440. In this solution, both the slide plate 1 and the slot are trapezoidal, but they can also be dovetail grooves, dovetail blocks, wedge blocks, or other shapes. After the locking block 440 and the slot are fixed, the position of the slide plate 3 is controlled by its own structure. The movement can be achieved in various ways, such as by a cylinder, hydraulic cylinder, motor, or lead screw. By using the positioning component 4, the slide plate 3 can be moved to the required position, improving the accuracy of the slide plate 1 installation position. This reduces errors caused by manual positioning, improves work efficiency, and enables automated operation, making it suitable for rapid switching between different testing needs.

[0024] In actual use, the positioning component 4 first stops the slide plate 3 at a designated position. Based on the height of the slot on the slide plate 3, the servo motor drives the lifting platform 420 to move up and down on the column 410, allowing the locking block 440 to accurately insert into the slot. At this time, the telescopic component 430 can then move the slide plate 3 according to the set requirements, moving it to the designated position for the installation or removal of the slider 1. After the operation is completed, the lifting platform 420 rises and falls, disengaging from the locking position. Then, the telescopic component 430 retracts, and the lifting platform 420 descends to its initial position, awaiting the next operation. This control method is simple and direct, enabling rapid determination of the position of the slide plate 3 and effectively improving the speed of slider 1 installation and removal.

[0025] Reference Figure 7 The hydrostatic guide rail requires high-pressure hydraulic fluid during operation. Therefore, the detection device itself includes a hydraulic station and a cooler to supply hydraulic fluid to the hydrostatic guide rail. In this design, the first hydraulic passage 350 inside the slide plate 3 transmits the hydraulic fluid, allowing the high-pressure hydraulic fluid to enter the reservoir 360. This high-pressure hydraulic fluid then moves the clamping plate 320, causing it to gradually approach the slider 1 and clamp it. This method of gradually moving the clamping plate 320 closer to the slider 1 utilizes the device's built-in hydraulic station, eliminating the need for additional drive components, simplifying the device's structure, and ensuring smoother movement of the clamping plate 320. In actual use, clean hydraulic fluid is injected into the first hydraulic passage 350 from an external oil source. After being filtered, the fluid enters the first hydraulic passage 350. A pressure sensor monitors the hydraulic pressure in real time, and the control system adjusts the output pressure of the oil source according to the set pressure value to ensure that the hydraulic fluid enters the first hydraulic passage 350 at a suitable pressure. When it is necessary to clamp slider 1, the control system controls the oil source to increase the oil output, and the oil flows quickly into the storage space 360 ​​through the first liquid passage 350. As the amount of oil in the storage space 360 ​​increases, the pressure gradually rises, and the clamping plate 320 slides towards slider 1 under the action of oil pressure, reducing the clamping space 330.

[0026] The slider 1 used in the hydrostatic guide rail has an oil inlet. In actual use, an external oil circuit is required to ensure that the slider 1 works normally on the hydrostatic guide rail. At this time, the opening 321 on the clamping plate 320 will play a role. When the clamping plate 320 gradually approaches the slider 1 under the action of liquid pressure, the inlet pipe 120 will gradually enter the opening 321. At this time, the oil in the liquid storage space 360 ​​will not flow out of the opening 321 due to the obstruction of the one-way valve plate 322 at the opening 321. When the inlet pipe 120 contacts the one-way valve plate 322... Subsequently, the one-way valve plate 322 cannot be opened under the pressure of the oil. Therefore, after the oil has been connected for a period of time, the electromagnet 323 needs to be activated. The magnetic force of the electromagnet 323 attracts the clamp plate 320, thereby causing the one-way valve plate 322 on the clamp plate 320 to overcome the pressure of the oil and be opened by the inlet pipe 120. This ensures that the opening 321 on the clamp plate 320 is connected to the oil inlet, and the oil can then flow smoothly into the slider 1 through the first liquid path 350 and the storage space 360, ensuring the normal operation of the slider 1. The initial entry of the oil into the storage space 360 ​​to bring the clamp plate 320 closer to the slider 1 aims to bring the clamp plate 320 closer to the electromagnet 323, ensuring the attraction effect of the electromagnet 323. A spring is also installed in the liquid storage space 360. The spring can reset the clamp 320. When the electromagnet 323 no longer provides magnetic force and the oil has no oil pressure, the spring will automatically reset the clamp 320, ensuring that the slider 1 can be automatically removed during disassembly and will not be stuck by the opening 321 on the clamp 320.

[0027] The slide plate 3 has several positioning holes 370, primarily to provide installation and guiding space for the positioning pins 450. The positioning pins 450 are slidably positioned within the positioning holes 370, their function being to insert into the corresponding positioning structure of the slider 1, ensuring greater stability of the slider 1 during testing and preventing wobbling. Through cooperation with the positioning holes 370 and the corresponding positioning structure, the positioning pins 450 provide a reliable positioning method for the components on the slide plate 3. During device operation, the positioning pins 450 effectively prevent component displacement, ensuring the stability and accuracy of slider 1 installation and removal operations. Simultaneously, the sliding design of the positioning pins 450 provides flexibility for component position adjustment, meeting diverse needs for component positioning in different testing scenarios. The elastic element 460 connects the positioning pins 450 and the slide plate 3 at both ends, its main function being to provide a continuous inward force to the positioning pins 450, keeping them within the positioning holes 370 and tending them to insert into the positioning structure. The elastic element 460 is typically a spring, which stores and releases energy using its elastic deformation to achieve the automatic positioning and reset function of the locating pin 450. The solenoid valve 470 controls the flow of oil between the oil and the locating pin 450. When the solenoid valve 470 is open, oil can flow through a specific channel to the locating pin 450, changing its state. When the solenoid valve 470 is closed, the flow between the oil and the locating pin 450 is cut off, and the locating pin 450 maintains its original state under the action of the elastic element 460. By controlling the opening and closing of the solenoid valve 470, precise control of the movement of the locating pin 450 can be achieved, thereby enabling flexible adjustment of the position of components on the slide plate 3.

[0028] The support platform 5 is located at one end of the test bed 2 near the positioning component 4, serving as a support structure for placing the slider 1 and related components to be installed or disassembled. Its main function is to provide a stable working plane for operation. The support roller 510 transforms the sliding friction between the slider 1 and the support platform 5 into rolling friction, greatly reducing friction. After the slide plate 3 is moved to the support platform 5, it will not experience significant wear, thus improving the service life of the device and more effectively ensuring the accuracy of the test.

[0029] The slide plate 3 is equipped with mounting blocks 380 of different specifications to provide matching mounting interfaces for sliders 1 of various sizes, shapes, and installation requirements. In this way, the slide plate 3 can adapt to the installation needs of various sliders 1 without requiring a separate design for each type of slider 1, greatly improving the efficiency and applicability of the device. The mounting blocks 380 of different specifications differ in size, shape, and mounting hole positions to suit the characteristics of different sliders 1. The mounting blocks 380 and the slide plate 3 are connected in a detachable manner, commonly using bolt connections or dovetail connections. Threaded holes corresponding to the mounting blocks 380 are machined on the slide plate 3, and through holes are opened on the mounting blocks 380. High-strength bolts are used to fasten the mounting blocks 380 to the slide plate 3. If a dovetail connection is used, a dovetail groove is machined on the slide plate 3, and a matching dovetail tenon is provided at the bottom of the mounting blocks 380. The tight fit between the dovetail groove and the dovetail tenon secures the mounting blocks 380. A locating pin 450 can be placed within the dovetail groove to further improve the positioning accuracy of the mounting blocks 380.

[0030] Reference Figure 2 and Figure 4 The buffer 610 is mounted on the buffer frame 6. When the slide plate 3 slides to one end of the test bed 2, the buffer 610 is impacted and compressed by the slide plate 3. Through its own elastic deformation, the buffer absorbs the kinetic energy of the slide plate 3, thereby slowing down its speed and preventing it from directly impacting both ends of the test bed 2, thus providing cushioning protection. The buffer 610 typically uses elastic elements, such as springs, rubber pads, or hydraulic dampers, utilizing their elastic properties to achieve the cushioning function. It can significantly reduce the impact force between the slide plate 3 and the test bed 2, protecting the slide plate 3, the test bed 2, and the components mounted on the slide plate 3 from damage, extending the service life of the device. It allows the slide plate 3 to decelerate smoothly when approaching the end of the test bed 2, avoiding vibration and impact caused by sudden braking, and ensuring the stability and accuracy of the testing process.

[0031] During the operation of the linear guide test slider 1 installation and removal device, the slide plate 3 slides on the test bed 2. When the slide plate 3 slides towards one end of the test bed 2, it first contacts the buffer 610 set on the buffer frame 6. As the slide plate 3 continues to move forward, the buffer 610 is compressed, the spring undergoes elastic deformation, absorbing the kinetic energy of the slide plate 3 and gradually reducing its speed. Under the action of the buffer 610, the slide plate 3 smoothly stops at the end of the test bed 2, avoiding a hard impact with the test bed 2 and protecting the various components of the device. When the slide plate 3 needs to slide in the opposite direction, the buffer 610 returns to its original shape under the action of its own elastic force, preparing for the next buffering.

[0032] Reference Figure 2The hydraulic buffer 7, through its structure and working mechanism, buffers and stabilizes the oil entering the first hydraulic passage 350. When oil flows from an external oil source into the first hydraulic passage 350, the piston, damping orifice, and other structures inside the hydraulic buffer 7 regulate the flow rate and pressure of the oil. When the oil pressure changes, the piston will generate corresponding displacement according to the pressure magnitude, adjusting the flow resistance of the oil by changing the flow area of ​​the damping orifice, thereby stabilizing the oil pressure and ultimately allowing it to enter the first hydraulic passage 350 stably.

[0033] 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. A hydrostatic slider mounting and dismounting device for linear guide rail testing, used to mount a slider (1) onto a sliding plate (3) that is slidably mounted on a test bed (2), characterized in that, Also includes: A clamping plate (320) is slidably disposed on the slide plate (3), and a clamping space (330) is formed between the clamping plate (320) and the slide plate (3). The clamping space (330) is used to clamp or release the slider (1). A positioning component (4) is provided at one end of the test bed (2). The positioning component (4) is used to drive the slide plate (3) to move so that the slide plate (3) moves to a designated position to install the slider (1).

2. The hydrostatic slider installation and removal device for linear guide testing according to claim 1, characterized in that, The slide plate (3) also has a slot (340), and the positioning component (4) includes a column (410) disposed at one end of the test bed (2); a lifting platform (420) is provided on the column (410), and a telescopic component (430) is provided on the lifting platform (420); the telescopic component (430) has a telescopic end (431); a locking block (440) is provided on the telescopic end (431), and after the lifting platform (420) is raised or lowered, the locking block (440) enters or leaves the slot (340) so that the telescopic component (430) drives or cancels the movement of the slide plate (3).

3. The hydrostatic slider installation and removal device for linear guide testing according to claim 1, characterized in that, The slide plate (3) has a first liquid passage (350), and there is a liquid storage space (360) between the clamp (320) and the slide plate (3). The first liquid passage (350) is connected to the liquid storage space (360). High-pressure oil enters the liquid storage space (360) through the first liquid passage (350) and drives the clamp (320) to slide by its own pressure.

4. The hydrostatic slider installation and removal device for linear guide testing according to claim 1, characterized in that, The slider (1) has an inlet (110) and an inlet pipe (120), and the clamp (320) has an opening (321). After the clamp (320) slides and clamps the slider (1), the inlet pipe (120) enters the opening (321). The slider (1) also includes a one-way valve plate (322) on the clamp (320), which is used to close the opening (321). After the inlet pipe (120) enters the opening (321), it pushes open the one-way valve plate (322). The slide plate (3) is also provided with an electromagnet (323), which is used to attract the clamp (320) to clamp the slider (1).

5. The hydrostatic slider installation and removal device for linear guide testing according to claim 3, characterized in that, The slide plate (3) has several positioning holes (370), which are connected to the liquid storage space (360). A positioning pin (450) and an elastic element (460) are provided in the positioning hole (370). The positioning pin (450) is slidably disposed in the positioning hole (370). After one end of the positioning pin (450) slides out of the positioning hole (370), it presses against and positions the slider (1). The two ends of the elastic element (460) are respectively disposed on the positioning pin (450) and the slide plate (3). The elastic element (460) is used to provide the force for the positioning pin (450) to enter the positioning hole (370). The slide plate (3) is also provided with a solenoid valve (470), which is used to control the opening and closing between the positioning hole (370) and the liquid storage space (360).

6. The hydrostatic slider installation and removal device for linear guide testing according to claim 1, characterized in that, The test bed (2) has a bearing platform (5) at one end near the positioning component (4). Several bearing rollers (510) are rotatably arranged on the bearing platform (5). The several bearing rollers (510) are arranged in an array and spaced apart on the bearing platform (5).

7. The hydrostatic slider installation and removal device for linear guide testing according to claim 1, characterized in that, The slide plate (3) is detachably provided with a mounting block (380), which is used to adapt to the slider (1) of different specifications.

8. The hydrostatic slider installation and removal device for linear guide testing according to claim 1, characterized in that, Also includes: The test bed (2) is provided with several buffer frames (6) at both ends; the buffer frames (6) have buffer components (610) to prevent the slide plate (3) from hitting the two ends of the test bed (2).

9. The hydrostatic slider installation and removal device for linear guide testing according to claim 3, characterized in that, Also includes: The slide plate (3) is provided with a hydraulic damper (7), which is connected to the inlet of the first liquid path (350). The hydraulic damper (7) is used to stabilize the oil pressure entering the first liquid path (350).

Images