A rotary test bench for cross-roller bearing measurement
By combining the friction belt and V-shaped frame structure, the versatility and accuracy issues of the cross roller bearing rotation test bench are solved, achieving stable and precise positioning of the bearing outer ring, improving test accuracy and simplifying operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG ONA BEARING CO
- Filing Date
- 2025-05-26
- Publication Date
- 2026-06-12
AI Technical Summary
Existing cross roller bearing rotation testing benches have poor versatility when measuring bearings of different sizes, insufficient circumferential constraint on the outer ring, are prone to eccentric movement, lack bearing axis height positioning, and are cumbersome to operate.
The bearing employs a friction belt and V-frame structure. Circumferential fixation is achieved through the large-area contact between the friction belt and the outer ring of the bearing. The symmetrical structure of the V-frame and support beam is used to position the bearing axis. Combined with the cooperation of the servo motor and electromagnetic fixing plate, stable and precise positioning of the bearing is achieved.
It improves the accuracy of rotation detection, prevents circumferential rotation and eccentric movement of the outer ring, simplifies the operation process, and enhances the positioning function of the bearing axis.
Smart Images
Figure CN224354101U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of mechanical precision testing, specifically a rotating testing table for measuring crossed roller bearings. Background Technology
[0002] Crossed roller bearings consist of an outer ring, inner ring, rollers, and spacers. Due to their compact structure, high rigidity, and high precision, they are widely used in industrial robots, CNC machine tools, and aerospace applications. Their rotational accuracy directly affects the overall performance of the equipment. Currently, most crossed roller bearing rotation testing benches are designed with dedicated positioning devices for measuring bearing dimensions, using precision mechanics and interference fits for positioning. However, these testing benches have poor versatility. When measuring bearings of different sizes, a new positioning device needs to be designed and replaced, which is cumbersome and severely impacts testing efficiency.
[0003] To improve the versatility of bearing rotation testing platforms, existing technologies employ adjustable clamping and positioning structures for bearing positioning. These devices utilize a trapezoidal groove (wider at the top, narrower at the bottom) to adaptively support bearing outer rings of different sizes, achieving axial and radial positioning of these rings in conjunction with the adjustable clamping and positioning structure. However, this type of device lacks sufficient constraint on the circumferential rotation of the outer ring. It relies solely on the friction between the outer ring and the clamping and positioning structure and the trapezoidal groove wall to resist circumferential torque. The contact area between the outer ring and these elements is very small. If the surface roughness of the bearing outer ring is low, or the inner ring's driving torque is high, the outer ring may rotate circumferentially, reducing the accuracy of rotation detection. Furthermore, the small contact area between the radial clamping element and the outer ring means the force line of the radial clamping element may not be positioned in the vertical plane containing the bearing axis, causing eccentric movement of the outer ring and affecting the accuracy of rotation detection. Additionally, this device lacks height positioning of the bearing axis, requiring the inner ring drive device to be equipped with a height adjustment mechanism and constantly adjusted, making operation cumbersome.
[0004] Therefore, these problems need to be addressed, hence this application. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the purpose of this application is to provide a rotation testing table for measuring crossed roller bearings, which, while ensuring measurement versatility, prevents circumferential rotation and eccentric movement of the outer ring, improves the accuracy of rotation testing, and adds a height positioning function for the bearing axis.
[0006] The above-mentioned objective of this application is achieved through the following technical solution:
[0007] A rotating testing platform for measuring crossed roller bearings includes a housing. Two fixed shafts are fixedly connected to both sides of the housing near its bottom. The fixed shafts are movably connected to one end of two V-shaped brackets. The other ends of the two V-shaped brackets are rotatably connected to one end of two tie rods. The other ends of the two tie rods are movably connected to a support beam. Two sets of slide rails are fixedly connected to the bottom of two servo motors B. The output ends of the two servo motors B are fixedly connected to two belt rollers. The two belt rollers are fixedly connected to one end of two friction belts. The other ends of the two friction belts are fixedly connected to two retaining rings.
[0008] Optionally, a servo motor A is fixedly connected to one side of the upper end of the housing, and a gear A is fixedly connected to the output end of the servo motor A. A drive shaft is rotatably connected to both sides of the upper end of the housing. A gear B is fixedly connected to the middle position of the drive shaft. Gear A meshes with gear B. Two gears C are fixedly connected to both ends of the drive shaft. Two sets of limiting plates are fixedly connected to both sides of the upper end of the housing. The inner sides of the two sets of limiting plates are slidably connected to the outer sides of two toothed plates. The two toothed plates are fixedly connected to both ends of the support beam. The two gears C mesh with the two toothed plates.
[0009] Optionally, a baffle is fixedly connected to the side of the V-shaped frame away from the bearing, and a linear array of locking teeth is fixedly connected to the lower side of the V-shaped frame. The buckle can slide on the V-shaped frame and can be fixed at a certain locking tooth.
[0010] Optionally, the fixed shaft is slidably connected to four electromagnetic fixing plates B, and the support beam is slidably connected to four electromagnetic fixing plates A.
[0011] Optionally, the slide rail has rail grooves on both sides and a linear array of insertion holes on the upper side of the slide rail.
[0012] Optionally, a slider is fixedly connected to the bottom of the servo motor B, and four sets of guardrails are fixedly connected to the front and rear sides of the servo motor B, with the inner side of the guardrails slidably connected to the outer side of the plug-in.
[0013] Optionally, an axial detection device and a radial detection device are slidably connected on one side of the housing.
[0014] Optionally, a control panel is fixedly connected to one side of the housing. The input terminal of the control panel is electrically connected to the external power supply output terminal. The output terminal of the control panel is electrically connected to the input terminals of two servo motors B. The output terminal of the control panel is electrically connected to the input terminal of servo motor A. The output terminal of the control panel is electrically connected to the input terminals of electromagnetic fixing plate A and electromagnetic fixing plate B.
[0015] By adopting the above solution, this utility model has at least one of the following beneficial effects compared with the prior art:
[0016] 1. This application utilizes a friction belt to achieve large-area circumferential fixation of the crossed roller bearing. Compared with existing clamping and positioning devices, the contact area between the friction belt and the outer ring of the bearing is larger, resulting in a larger maximum static friction force with the outer ring. This effectively achieves circumferential fixation of the outer ring of the crossed roller bearing, avoiding the problem that the outer ring may rotate circumferentially during rotation detection if the surface roughness of the outer ring is low or the inner ring driving torque is large. This improves the accuracy of rotation detection.
[0017] 2. This application utilizes a friction belt to achieve large-area radial fixing of crossed roller bearings. Moreover, the contact surface between the friction belt and the outer ring is symmetrical with respect to the vertical plane where the bearing axis is located. Compared with the existing clamping and positioning mechanism with a smaller contact area with the outer ring, this application effectively avoids the problem that the pressure line of the radial clamping component is not positioned to the vertical plane where the bearing axis is located, prevents the outer ring from eccentrically moving, and improves the accuracy of rotation detection.
[0018] 3. This application utilizes the approximately symmetrical structure of the V-shaped bracket to position the bearing axis in both direction and horizontal position, making it parallel to the axis of the inner ring drive device and coinciding with its projection on the horizontal plane. It also utilizes the support beam to drive the V-shaped bracket to move via the tie rod to position the bearing axis in the vertical position, making it completely coincident with the axis of the inner ring drive device. The inner ring drive device can be directly connected to and drive the inner ring of the bearing to rotate without the need for a position adjustment device. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;
[0020] Figure 2 This is a schematic diagram of the overall structure on the other side of the embodiment of this application;
[0021] Figure 3 This is an embodiment of the present application. Figure 1 A magnified structural diagram of area A is shown below;
[0022] Figure 4 This is an embodiment of the present application. Figure 2 The diagram shows an enlarged view of area B.
[0023] Figure 5 This is a schematic diagram of the detection device structure according to an embodiment of this application.
[0024] Reference numerals: 1. Outer shell; 2. Control panel; 3. Fixed shaft; 31. Electromagnetic fixing plate B; 4. V-block; 41. Baffle; 42. Clamping tooth; 5. Limiting plate; 6. Toothed plate; 7. Support beam; 71. Electromagnetic fixing plate A; 8. Pull rod; 9. Servo motor A; 91. Gear A; 92. Gear B; 93. Drive shaft; 94. Gear C; 10. Slide rail; 101. Rail groove; 102. Insertion hole; 11. Servo motor B; 111. Slider; 112. Belt tube; 113. Guard plate; 114. Insert; 12. Friction belt; 121. Buckle; 13. Axial detection device; 14. Radial detection device. Detailed Implementation
[0025] To better understand the technical solutions presented in the embodiments of this application, the working principle of the existing bearing rotation testing platform will first be introduced.
[0026] The existing bearing rotation testing stand is adapted to support bearing outer rings of different sizes through a trapezoidal groove that is wider at the top and narrower at the bottom, and is stably supported by an adjustable-gap positioning base. The clamping mechanism includes a radial clamping assembly and an axial clamping assembly. The radial clamping assembly drives the clamping element to radially fix the bearing outer ring through a connecting rod lever; the axial clamping assembly fixes the bearing outer ring axially through a fixing element; there is no circumferential fixing assembly, and the bearing outer ring is circumferentially fixed only by the static friction between the bearing outer ring, the clamping element, and the trapezoidal groove wall, thereby ensuring the stability of the bearing outer ring during the testing process. The device uses the symmetrical trapezoidal groove to position the bearing axis in both direction and horizontal position.
[0027] However, in this device, the contact area between the outer ring and the clamping element, as well as the trapezoidal groove wall, is very small. This results in a relatively small maximum static friction force that can be provided circumferentially to the bearing outer ring. When the surface roughness of the bearing outer ring is low or the inner ring driving torque is large, this type of device provides insufficient circumferential constraint on the outer ring, causing it to rotate circumferentially and reducing the accuracy of rotation detection. Furthermore, the small contact range between the radial clamping element and the outer ring makes it easy for the force line of the radial clamping element to be misaligned with the vertical plane containing the bearing axis, causing eccentric movement of the outer ring and affecting the accuracy of rotation detection. Although this device positions the bearing axis in terms of direction and horizontal position, it lacks height positioning of the bearing axis. The inner ring drive device needs a height adjustment device that must be adjusted constantly, making operation cumbersome.
[0028] To address the shortcomings of existing technologies, the purpose of this application is to provide a rotation testing table for measuring crossed roller bearings, which, while ensuring measurement versatility, prevents circumferential rotation and eccentric movement of the outer ring, improves the accuracy of rotation testing, and adds a height positioning function for the bearing axis.
[0029] The present application will be further described in detail below with reference to the accompanying drawings.
[0030] Please see Figures 1 to 5 This utility model provides a technical solution: a rotating testing table for measuring crossed roller bearings, including a housing 1, with fixed shafts 3 fixedly connected to both ends of the housing 1 near the bottom, fixed shafts 3 movably connected to one end of two V-shaped frames 4, fixed shafts 3 slidably connected to four electromagnetic fixing plates B31, the other ends of the two V-shaped frames 4 respectively rotatably connected to one end of two pull rods 8, the other ends of the two pull rods 8 movably connected to a support beam 7, and the support beam 7 slidably connected to four electromagnetic fixing plates A71.
[0031] Furthermore, the outer casing 1 consists of a base plate and two side plates, one of which has a window for bearing replacement and inner ring drive. The base plate is placed horizontally. The inner ring drive can be achieved by giving the inner ring an initial velocity to allow it to rotate freely, or an inner ring drive device can be installed to make the inner ring rotate in a specific pattern; this embodiment does not require otherwise. The projections of the fixed shaft 3 axis and the support beam 7 axis on the horizontal plane coincide.
[0032] The projections of the two V-shaped brackets 4 onto the vertical plane of the bearing axis are symmetrical with respect to the vertical plane containing the bearing axis. The two V-shaped brackets 4 can rotate around the fixed shaft 3 and slide on the fixed shaft 3. Two electromagnetic fixing plates B31 are provided on the front and rear sides of each V-shaped bracket 4 on the fixed shaft 3. When the V-shaped bracket 4 is adjusted, the electromagnetic fixing plates B31 are closed and can slide on the fixed shaft 3. After the V-shaped bracket 4 is adjusted, the electromagnetic fixing plates B31 are moved so that they are close to the front and rear sides of the corresponding V-shaped bracket 4. The electromagnetic fixing plates B31 are opened and fixed in position on the fixed shaft 3, limiting the position of the V-shaped bracket 4.
[0033] The projections of the two tie rods 8 onto the vertical plane of the bearing axis are symmetrical with respect to the vertical plane containing the bearing axis. The two tie rods 8 are symmetrical with respect to the support beam 7, can rotate around the support beam 7, and can slide on the support beam 7. Two electromagnetic fixing plates A71 are provided on the front and rear sides of each tie rod 8 on the support beam 7. When the tie rod 8 is adjusted, the electromagnetic fixing plates A71 are closed and can slide on the support beam 7. After the tie rod 8 is adjusted, the electromagnetic fixing plates A71 are moved so that they are close to the front and rear sides of the corresponding tie rod 8. The electromagnetic fixing plates A71 are opened and fixed in position on the support beam 7, limiting the position of the tie rod 8.
[0034] Electromagnetic fixing plates B31 and A71 only restrict the position of V-shaped frame 4 and tie rod 8, without affecting their rotation.
[0035] Combination Figure 1 and Figure 2As shown, a servo motor A9 is fixedly connected to one side of the upper end of the outer casing 1. Gear A91 is fixedly connected to the output end of the servo motor A9. Drive shafts 93 are rotatably connected to both sides of the upper end of the outer casing 1. Gear B92 is fixedly connected to the middle position of the drive shaft 93. Gear A91 meshes with gear B92. Two gears C94 are fixedly connected to both ends of the drive shaft 93. Two sets of limiting plates 5 are fixedly connected to both sides of the upper end of the outer casing 1. The inner sides of the two sets of limiting plates 5 are slidably connected to the outer sides of two toothed plates 6. The two toothed plates 6 are fixedly connected to both ends of the support beam 7. The two gears C94 mesh with the two toothed plates 6 respectively.
[0036] Furthermore, gear B92 is positioned in the middle of drive shaft 93, ensuring that when servo motor A9 drives gear plate 6 via gears A91, B92, drive shaft 93, and C94, the force and torque on the two gear plates 6 are equal, resulting in a more stable structure. The radii of gears A91, B92, and C94 can be determined based on the specifications of servo motor A9 and the weight of the device; this embodiment does not require this. Each set of limiting plates 5 consists of four rectangularly symmetrically distributed right-angled plates, with the axes of symmetry being a horizontal and a vertical line, respectively. A gap is left between the left and right right-angled plates to allow the support beam 7 to move, and a gap is left between the upper and lower right-angled plates to allow the gear C94 to move. The main body of gear plate 6 is a square plate, placed vertically. A linear array of meshing teeth is provided on the side of the square plate closest to gear C94, allowing gear plate 6 to slide within the limiting plate 5.
[0037] The output of servo motor A9 drives gear A91 to rotate, gear A91 drives gear B92 to rotate, gear B92 drives two gears C94 to rotate through drive shaft 93, gear C94 drives gear plate 6 to move, limit plate 5 restricts the movement direction of gear plate 6, thereby driving support beam 7 to move in the vertical direction.
[0038] Because the projections of the fixed shaft 3 axis and the support beam 7 axis on the horizontal plane coincide, and due to the symmetrical relationship between the two V-shaped brackets 4 and the two tie rods 8, the positions of the two V-shaped brackets 4 and the two tie rods 8 remain symmetrical when the support beam 7 moves vertically. The projection of the bearing axis on the horizontal plane remains unchanged. The height of the bearing axis is adjusted by the vertical movement of the support beam 7, so that the position of the bearing axis remains unchanged, which facilitates bearing positioning and driving.
[0039] Combination Figure 1 and Figure 2 As shown, two sets of slide rails 10 are fixedly connected to the bottom of the outer shell 1. The two sets of slide rails 10 are slidably connected to the bottom of two servo motors B11 respectively. The output ends of the two servo motors B11 are fixedly connected to the shafts of two belt drums 112 respectively. The two belt drums 112 are fixedly connected to one end of two friction belts 12 respectively. The other end of the two friction belts 12 is fixedly connected to two buckles 121 respectively.
[0040] Furthermore, the two sets of slide rails 10 are symmetrical with respect to the vertical plane containing the bearing axis, ensuring that the projections of the two servo motors B11 onto the vertical plane of the bearing axis are always symmetrical with respect to the vertical plane containing the bearing axis. Each set of slide rails 10 includes two rails, left and right, symmetrically distributed at the bottom of the servo motors B11, allowing the servo motors B11 to slide on the slide rails 10. The servo motors B11 collect the friction belt 12 through the belt sleeve 112 and provide stable tension, resulting in a large-area pressure distribution of the friction belt 12 on the outer ring of the bearing. This, combined with the V-shaped bracket 4, radially fixes the outer ring of the bearing. The pressure applied by the friction belt 12 is symmetrically distributed with respect to the vertical plane containing the bearing axis, thus the resultant force of the pressure applied by the friction belt 12 is positioned in the vertical plane containing the bearing axis, preventing eccentric movement of the outer ring of the bearing. The large contact area between the friction belt 12 and the outer ring of the bearing increases the maximum static friction between the friction belt 12 and the outer ring of the bearing, preventing circumferential rotation of the outer ring of the bearing.
[0041] Combination Figure 3 As shown, the V-shaped frame 4 is fixedly connected to the baffle 41 on the side away from the bearing, and the lower side of the V-shaped frame 4 is fixedly connected to the linear array of locking teeth 42. The buckle 121 can slide on the V-shaped frame 4 and can be fixed at a certain locking tooth 42.
[0042] Furthermore, based on the geometric relationship of the aforementioned device, the contact point between the bearing outer ring and the V-block 4 is symmetrical with respect to the vertical plane containing the bearing axis. The baffle 41 is a narrow square plate that can contact the side of the bearing outer ring, and the two baffles 41 axially fix the bearing outer ring. When installing the bearing, the retaining ring 121 is fixed using the retaining teeth 42 closest to the contact point between the bearing outer ring and the V-block 4, maximizing the contact area between the bearing outer ring and the friction band 12.
[0043] Combination Figure 4 As shown, the slide rail 10 has rail grooves 101 on both sides, and the slide rail 10 has a linear array of insertion holes 102 on the upper side. The bottom of the servo motor B11 is fixedly connected to the slider 111, and four sets of guardrails 113 are fixedly connected to the front and rear sides of the servo motor B11. The inner side of the guardrail 113 is slidably connected to the outer side of the plug-in 114.
[0044] Furthermore, the slider 111 can be embedded in the rail groove 101 and can slide within the rail groove 101. The plug 114 can slide within the panel 113 and can be inserted into the socket 102.
[0045] When fixing the outer ring of the bearing, the retaining ring 121 is fixed by the tooth 42 that is closer to the contact point between the outer ring of the bearing and the V-shaped bracket 4. The servo motor B11 is moved so that the projections of the tape roll 112 and the V-shaped bracket 4 on the vertical plane where the bearing axis is located are aligned. The plug 114 is pressed down and inserted into the nearest socket 102 to fix the servo motor B11.
[0046] Combination Figure 1 and Figure 2 As shown, control panel 2 is fixedly connected to one side of the outer casing 1. The input end of control panel 2 is electrically connected to the external power supply output end. The output end of control panel 2 is electrically connected to the input ends of two servo motors B11. The output end of control panel 2 is electrically connected to the input end of servo motor A9. The output end of control panel 2 is electrically connected to the input ends of electromagnetic fixing plate A71 and electromagnetic fixing plate B31.
[0047] Furthermore, in actual use, the V-shaped bracket 4, the pull rod 8 and the servo motor B11, which are far away from the window of the outer casing 1, and the corresponding electromagnetic fixing plate B31, electromagnetic fixing plate A71 and plug 114 can be kept in the same axial position, so that another set of devices can be moved axially to fix the outer ring of the bearing, reducing the number of operation steps.
[0048] Combination Figure 5 As shown, the axial detection device 13 and the radial detection device 14 are slidably connected on one side of the outer casing 1.
[0049] Furthermore, the axial detection device 13 and the radial detection device 14 include a detection gauge, a telescopic frame, and a fixed plate. The detection gauge can be a dial indicator, a laser indicator, or an acoustic indicator, etc., and the fixed plate can be a mechanical chuck, an electromagnetic chuck, or a bolt-fixed plate, etc., which are not limited in this embodiment. The telescopic frame includes a sleeve and positioning screws to assist the detection gauge in positioning.
[0050] The working principle of the rotating testing table used for measuring crossed roller bearings is as follows:
[0051] Before rotation detection and fixing, roughly estimate the size of the bearing outer ring. Turn on servo motors B11 and A9 in reverse on control panel 2 so that V-block 4 and friction belt 12 can fit the larger bearing outer ring. Turn off servo motors B11 and A9 on control panel 2.
[0052] Place the bearing into the device, ensuring the outer ring of the bearing contacts the V-shaped bracket 4 and baffle 41 away from the window of housing 1. Move the V-shaped bracket 4, pull rod 8, and servo motor B11, as well as the corresponding electromagnetic fixing plates B31 and A71, closer to the window of housing 1, so that the outer ring of the bearing contacts the V-shaped bracket 4 and baffle 41 closer to the window of housing 1. The electromagnetic fixing plate B31 near the window should be in close contact with the front and rear sides of the corresponding V-shaped bracket 4, and the electromagnetic fixing plate A71 near the window should be in close contact with the front and rear sides of the corresponding pull rod 8. Activate the control panel 2 to fix the electromagnetic fixing plate B31, thus defining the position of the corresponding V-shaped bracket 4. Activate the control panel 2 to fix the electromagnetic fixing plate A71, thus defining the position of the corresponding pull rod 8. Press down the plug 114 near the window and insert it into the nearest socket 102, thereby fixing the servo motor B11 near the window. The axial fixing of the outer ring of the bearing is now complete.
[0053] Control panel 2 activates servo motor A9, causing support beam 7 to move vertically upwards. This drives tie rod 8 and V-block 4, causing the bearing axis to move upwards until it coincides with the preset position. Control panel 2 then deactivates servo motor A9, completing the height positioning of the bearing axis. The retaining ring 121 is fixed at the tooth 42 closest to the contact point between the bearing outer ring and V-block 4. Control panel 2 activates servo motor B11 until friction belt 12 is taut. Control panel 2 then deactivates servo motor B11. This completes the radial fixation of the bearing outer ring and prevents circumferential rotation and eccentric movement.
[0054] The inner ring of the bearing can be driven by either the traditional method of giving it an initial velocity to allow it to rotate freely, or by installing an inner ring drive device to rotate it in a specific pattern. The axial detection device 13 and the radial detection device 14 are moved, and their respective sleeves and positioning screws are adjusted so that the gauges of the axial detection device 13 and the radial detection device 14 can respectively detect the axial runout and radial runout of the bearing inner ring.
[0055] After the test is completed, control panel 2 reverses the operation of servo motors B11 and A9, lifts the plug 114 near the window, and controls panel 2 shuts down electromagnetic mounting plates B31 and A71. The bearings are then removed. Control panel 2 shuts down servo motors B11 and A9.
[0056] This application utilizes a fixed belt mechanism and a fixed frame mechanism to ensure the versatility of cross roller bearing measurement while preventing circumferential rotation and eccentric movement of the outer ring, improving the accuracy of rotation detection, and adding a height positioning function for the bearing axis.
[0057] The embodiments described in this specific implementation are 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 rotating testing table for measuring crossed roller bearings, comprising a housing (1), characterized in that: The outer shell (1) is fixedly connected to both ends of a fixed shaft (3) near the bottom. The fixed shaft (3) is movably connected to one end of two V-shaped brackets (4). The other ends of the two V-shaped brackets (4) are respectively rotatably connected to one end of two pull rods (8). The other ends of the two pull rods (8) are movably connected to a support beam (7). The bottom end of the outer shell (1) is fixedly connected to two sets of slide rails (10). The two sets of slide rails (10) are respectively slidably connected to the bottom ends of two servo motors B (11). The output ends of the two servo motors B (11) are respectively fixedly connected to two belt rollers (112) shafts. The two belt rollers (112) are respectively fixedly connected to one end of two friction belts (12). The other ends of the two friction belts (12) are respectively fixedly connected to two buckles (121).
2. The rotating testing table for measuring crossed roller bearings according to claim 1, characterized in that: The upper end of the outer shell (1) is fixedly connected to a servo motor A (9), and the output end of the servo motor A (9) is fixedly connected to a gear A (91). The upper end of the outer shell (1) is rotatably connected to a drive shaft (93), and the middle position of the drive shaft (93) is fixedly connected to a gear B (92). The gear A (91) meshes with the gear B (92). The two ends of the drive shaft (93) are respectively fixedly connected to two gears C (94). The upper end of the outer shell (1) is fixedly connected to two sets of limiting plates (5). The inner sides of the two sets of limiting plates (5) are respectively slidably connected to the outer sides of two toothed plates (6). The two toothed plates (6) are fixedly connected to the two ends of the support beam (7). The two gears C (94) mesh with the two toothed plates (6).
3. A rotating testing table for measuring crossed roller bearings according to claim 1, characterized in that: The V-shaped frame (4) is fixedly connected to a baffle (41) on the side away from the bearing. The lower side of the V-shaped frame (4) is fixedly connected to a linear array of locking teeth (42). The buckle (121) can slide on the V-shaped frame (4) and can be fixed at a certain locking tooth (42).
4. A rotating testing table for measuring crossed roller bearings according to claim 1, characterized in that: The fixed shaft (3) is slidably connected to four electromagnetic fixing plates B (31), and the support beam (7) is slidably connected to four electromagnetic fixing plates A (71).
5. A rotating testing table for measuring crossed roller bearings according to claim 1, characterized in that: The slide rail (10) has rail grooves (101) on both sides and a linear array of insertion holes (102) on the upper side of the slide rail (10).
6. A rotation testing table for measuring crossed roller bearings according to claim 5, characterized in that: The bottom end of the servo motor B (11) is fixedly connected to the slider (111), and four sets of guardrails (113) are fixedly connected to the front and rear sides of the servo motor B (11). The inner side of the guardrail (113) is slidably connected to the outer side of the plug (114).
7. A rotating testing table for measuring crossed roller bearings according to claim 1, characterized in that: The outer shell (1) is slidably connected to an axial detection device (13) and a radial detection device (14) on one side.
8. A rotating testing table for measuring crossed roller bearings according to claim 1 or 4, characterized in that: The control panel (2) is fixedly connected to one side of the outer shell (1). The input end of the control panel (2) is electrically connected to the output end of the external power supply. The output end of the control panel (2) is electrically connected to the input ends of two servo motors B (11). The output end of the control panel (2) is electrically connected to the input end of servo motor A (9). The output end of the control panel (2) is electrically connected to the input ends of electromagnetic fixing plate A (71) and electromagnetic fixing plate B (31).