Joint bearing press-fitting tool

Abstract

The utility model discloses a kind of tool for joint bearing press mounting, it is related to the technical field for connecting or disassembling article by pressure fit. The tool for joint bearing press mounting, including workbench, the upper side of the workbench is fixedly connected with fixed frame, fixed frame is L-shaped block, the upper side of fixed frame is fixedly connected with hydraulic cylinder, the hydraulic cylinder hydraulic rod slidingly penetrates through fixed frame, the lower end of hydraulic cylinder hydraulic rod is fixedly connected with fixed block, the upper side of workbench is installed with fixed plate, the upper side of fixed plate is equipped with sliding slot, sliding slot is rectangular slot, quick-release tool mechanism is provided on fixed plate, outer ring guide sleeve, positioning mandrel and pressure head can be conveniently disassembled and replaced, can quickly adapt to different specifications joint bearing press mounting demand, greatly improve the versatility and flexibility of tool, reduce the time and effort spent due to replacement different specifications tool, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of connecting or disassembling articles by press fitting, specifically a tooling for facilitating the press fitting of spherical bearings. Background Technology

[0002] In the field of mechanical manufacturing, spherical plain bearings are key components for realizing the combined rotation and oscillation motion, and are widely used in equipment such as engineering machinery and automotive parts. The precision and efficiency of their press-fitting process directly determine the performance stability of the subsequent assembled products. At present, the industry relies heavily on special tooling for the press-fitting of spherical plain bearings.

[0003] Specialized tooling is usually tightly bound to specific bearing specifications. That is, a set of tooling can only be used for a single or very small range of spherical plain bearing specifications. Since the inner diameter and outer ring size of spherical plain bearings vary greatly in different application scenarios, manufacturers need to reserve multiple sets of corresponding tooling for different bearing specifications. This not only significantly increases the procurement cost and storage space of tooling, but also requires the entire set of tooling to be disassembled, replaced and reinstalled when changing bearing specifications. Each changeover is often time-consuming, which restricts the pressing efficiency of spherical plain bearings. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art and to provide a tooling for easy press-fitting of spherical bearings.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tooling for press-fitting spherical bearings, including a worktable, a fixed frame fixedly connected to the upper side of the worktable, the fixed frame being an L-shaped block, and a hydraulic cylinder fixedly connected to the upper side of the fixed frame; The hydraulic rod of the hydraulic cylinder slides through the fixed frame, and a fixed block is fixedly connected to the lower end of the hydraulic rod. A fixing plate is installed on the upper side of the workbench, and four first bolts are installed on the upper side of the fixing plate. The four first bolts are arranged in a rectangular array, and the fixing plate is connected to the workbench by the four first bolts. The upper side of the fixed plate is provided with a sliding groove, which is a rectangular groove. The fixed plate is provided with a quick-release tooling mechanism, which can be quickly adjusted according to the size of the joint bearing to be pressed in as needed. The quick-release tooling mechanism includes two clamping blocks, two sliding blocks, two insertion slots, an outer ring guide sleeve, two insertion blocks, two first insertion holes, two second insertion holes, two threaded holes, two second bolts, a positioning mandrel, a second threaded groove, a threaded rod, a turntable, a connecting rod, a bidirectional screw, and two limit rods.

[0006] Preferably, a pressure head is installed on the lower side of the fixing block, a first threaded groove is opened on the lower side of the fixing block, and a threaded post is fixedly connected to the upper side of the pressure head, with the threaded post threadedly connected inside the first threaded groove.

[0007] Preferably, both clamping blocks are installed on the upper side of the fixed plate, the two clamping blocks are arranged symmetrically front and back, and the two sliding blocks are slidably connected inside the sliding groove; The upper sides of the two sliding blocks are fixedly connected to the two clamping blocks respectively, and the two insertion slots are respectively opened on the opposite surfaces of the two clamping blocks. The outer ring guide sleeve is installed on the upper side of the fixed plate.

[0008] Preferably, the outer ring guide sleeve is positioned between the two clamping blocks, and the two plug-in blocks are respectively fixed on the front and rear sides of the outer surface of the outer ring guide sleeve; The two plug blocks slide into the interior of the two plug slots on their opposite sides, and the two first plug holes are respectively opened on the upper side of the two clamping blocks; The lower sides of the two first sockets extend into the interior of the two plug slots, and the two second sockets are respectively opened on the upper side of the two plug blocks.

[0009] Preferably, the lower sides of the two second insertion holes extend to the lower surfaces of the two insertion blocks, and the two threaded holes are respectively opened on the bottom walls of the two insertion slots; The first insertion hole, the second insertion hole, and the threaded hole are arranged vertically in a corresponding manner. Two second bolts are respectively installed on the upper side of the two clamping blocks, and the lower end of the second bolt slides through the first insertion hole and the second insertion hole.

[0010] Preferably, the lower end of the second bolt is threaded into the inside of the threaded hole, the positioning mandrel is mounted on the bottom wall of the outer ring guide sleeve, and the second threaded groove is formed on the bottom wall of the outer ring guide sleeve. The threaded rod is fixedly connected to the lower end of the positioning mandrel, and the thread at the lower end of the threaded rod extends into the interior of the second threaded groove. The turntable is installed on the front side of the fixed plate, and the connecting rod is fixedly connected to the rear side of the turntable.

[0011] Preferably, the rear end of the connecting rod extends rotatably into the interior of the sliding groove, and the bidirectional screw is fixedly connected to the rear end of the connecting rod, with the rear thread of the bidirectional screw passing through the two sliding blocks; The rear end of the bidirectional screw is rotatably connected to the rear wall of the sliding groove, and the two limiting rods are fixedly connected to the front wall of the sliding groove. The rear ends of the two limiting rods slide through the two sliding blocks respectively. The rear ends of the two limiting rods are fixedly connected to the rear wall of the sliding groove, and the two limiting rods are respectively set on the left and right sides of the bidirectional screw.

[0012] Preferably, the turntable and connecting rod are replaced with a servo motor. The output shaft of the servo motor is fixedly connected to the front end of the bidirectional screw through a coupling. The servo motor has its own encoder and is connected to the production line PLC system, while retaining the original sliding block and limit rod structure.

[0013] Compared with the prior art, the beneficial effects of this utility model are: (1) The tooling for pressing spherical plain bearings can be quickly adjusted according to the size of the spherical plain bearings to be pressed. By rotating the turntable, the bidirectional screw is driven to rotate, which drives the two sliding blocks to move closer or further away synchronously, thereby driving the two clamping blocks to move. The distance between the two clamping blocks can be quickly adjusted to adapt to the outer ring guide sleeve of different sizes. At the same time, the outer ring guide sleeve, the positioning mandrel and the press head can be easily disassembled and replaced, which can quickly adapt to the pressing requirements of spherical plain bearings of different specifications, greatly improving the versatility and flexibility of the tooling, reducing the time and effort spent on changing tooling of different specifications, and improving production efficiency.

[0014] (2) The tooling for press-fitting the joint bearing has a limit plug that constrains the movement of the sliding block. It ensures the reliable operation of the tooling from the aspects of guidance, accuracy and stability. The limit plug can offset the circumferential torque generated on the sliding block when the bidirectional screw rotates, prevent the sliding block from rotating with the screw, and ensure that it drives the clamping block to move smoothly. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of a tooling structure for facilitating the press-fitting of spherical bearings according to the present invention; Figure 2 This is a cross-sectional view of the connection structure between the fixing frame and the fixing block of this utility model; Figure 3 This is a cross-sectional view of the connection structure at the fixing plate of this utility model; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 for Figure 3 Enlarged view of point B; Figure 6 This is a schematic diagram of the connection structure at the fixing plate of this utility model.

[0016] Reference numerals: 1. Worktable; 2. Fixing frame; 3. Hydraulic cylinder; 4. Fixing block; 5. Pressure head; 6. First threaded groove; 7. Threaded column; 8. Fixing plate; 9. First bolt; 10. Sliding groove; 11. Clamping block; 12. Sliding block; 13. Insertion groove; 14. Outer ring guide sleeve; 15. Insertion block; 16. First insertion hole; 17. Second insertion hole; 18. Threaded hole; 19. Second bolt; 20. Positioning mandrel; 21. Second threaded groove; 22. Threaded rod; 23. Turntable; 24. Connecting rod; 25. Bidirectional screw; 26. Limiting rod; 27. Servo motor. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0020] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0021] Please see Figure 1-6 This utility model provides a new technical solution: a tooling for press-fitting spherical bearings, including a worktable 1: the worktable 1 is the basic load-bearing component of the tooling, the upper side of the worktable 1 is fixedly connected to the fixing frame 2 and the fixing plate 8 is installed, the worktable 1 provides a stable installation reference surface for the entire tooling, and ensures the stability of the position of each component during the press-fitting process.

[0022] Fixed frame 2: Fixed frame 2 is an L-shaped block structure. The lower end of fixed frame 2 is fixedly connected to the upper side of workbench 1, and the upper horizontal part of fixed frame 2 is fixedly connected to hydraulic cylinder 3. Fixed frame 2 provides installation support for hydraulic cylinder 3 and provides a sliding through channel for hydraulic rod of hydraulic cylinder 3 to ensure vertical movement of hydraulic rod.

[0023] Hydraulic cylinder 3: Hydraulic cylinder 3 is the power component of the tooling. Hydraulic cylinder 3 is fixedly connected to the upper side of the fixed frame 2. The hydraulic rod of hydraulic cylinder 3 slides through the fixed frame 2. The lower end of the hydraulic rod of hydraulic cylinder 3 is fixedly connected to the fixed block 4. Hydraulic cylinder 3 drives the fixed block 4 and the pressure head 5 to move up and down through the extension and retraction of the hydraulic rod, providing driving force for pressing.

[0024] Fixed block 4: Fixed block 4 is a connecting transmission component. The upper end of fixed block 4 is fixedly connected to the hydraulic rod of hydraulic cylinder 3. The lower side of fixed block 4 is provided with a first threaded groove 6. Fixed block 4 is connected to the threaded post 7 of pressure head 5 through the first threaded groove 6. Fixed block 4 transmits the power of hydraulic cylinder 3 to pressure head 5 and provides an installation reference for pressure head 5.

[0025] Press head 5: Press head 5 is the press-fitting execution component. The upper side of the press head 5 is fixedly connected to the threaded post 7. The press head 5 is threadedly connected to the first threaded groove 6 of the fixed block 4 through the threaded post 7. The lower end of the press head 5 directly contacts the workpiece to be pressed. The press head 5 moves downward under the drive of the hydraulic cylinder 3 to press the spherical bearing into the workpiece assembly hole.

[0026] First threaded groove 6: The first threaded groove 6 is a threaded connection structure. The first threaded groove 6 is opened on the lower side of the fixed block 4. The first threaded groove 6 is machined with internal threads. The first threaded groove 6 matches the threaded post 7 of the pressure head 5. The first threaded groove 6 realizes the detachable connection between the pressure head 5 and the fixed block 4, which is convenient for replacing different pressure heads 5.

[0027] Threaded post 7: Threaded post 7 is a threaded connection component. Threaded post 7 is fixedly connected to the upper side of the pressure head 5. The outer surface of threaded post 7 is machined with external threads. Threaded post 7 matches the internal thread of the first threaded groove 6 of the fixed block 4. Threaded post 7 fixes the pressure head 5 on the fixed block 4 to ensure that the two move synchronously during press-fitting.

[0028] Fixed plate 8: Fixed plate 8 is the intermediate load-bearing component of the tooling. Fixed plate 8 is installed on the upper side of the workbench 1. Fixed plate 8 is fixed to the workbench 1 by four first bolts 9. A sliding groove 10 is provided on the upper side of fixed plate 8. Fixed plate 8 provides an installation platform for quick-release tooling mechanism and is the installation carrier for components such as sliding block 12 and outer ring guide sleeve 14.

[0029] First bolt 9: First bolt 9 is a fastening connector. There are four first bolts 9 in total, which are distributed in a rectangular array. The first bolt 9 is installed on the upper side of the fixed plate 8. The lower end of the first bolt 9 passes through the fixed plate 8 and is threadedly connected to the worktable 1. The first bolt 9 fixes the fixed plate 8 to the worktable 1, realizing the detachable connection between the two.

[0030] Sliding groove 10: The sliding groove 10 is a sliding guide structure. The sliding groove 10 is a rectangular groove and is opened on the upper side of the fixed plate 8. Two sliding blocks 12 are slidably connected inside the sliding groove 10. The sliding groove 10 is also equipped with a bidirectional screw 25 and two limit rods 26. The sliding groove 10 provides a sliding track for the sliding blocks 12 and restricts their movement direction.

[0031] Clamping block 11: Clamping block 11 is a clamping and positioning component. There are two clamping blocks 11, which are arranged symmetrically front and back. The clamping blocks 11 are installed on the upper side of the fixing plate 8. The lower end of the clamping block 11 is fixedly connected to the sliding block 12. The opposite side of the clamping block 11 has an insertion groove 13. The clamping block 11 adjusts the distance by sliding to clamp and fix the outer ring guide sleeve 14.

[0032] Sliding block 12: Sliding block 12 is a transmission connection component. There are two sliding blocks 12. The sliding blocks 12 are slidably connected inside the sliding groove 10. The upper side of the sliding block 12 is fixedly connected to the clamping block 11. The bidirectional screw 25 and the limiting rod 26 pass through the inside of the sliding block 12. The sliding block 12 drives the clamping block 11 to move under the drive of the bidirectional screw 25, and adjusts the spacing.

[0033] Insertion slot 13: Insertion slot 13 is an insertion positioning structure. There are two insertion slots 13. The insertion slots 13 are respectively opened on the opposite surfaces of the two clamping blocks 11. The insertion block 15 of the outer ring guide sleeve 14 can be slidably accommodated inside the insertion slot 13. The bottom wall of the insertion slot 13 is opened with a threaded hole 18. The insertion slot 13 initially positions the outer ring guide sleeve 14 by cooperating with the insertion block 15.

[0034] Outer ring guide sleeve 14: The outer ring guide sleeve 14 is a positioning component for the outer ring of the bearing. The outer ring guide sleeve 14 is installed on the upper side of the fixed plate 8 and located between two clamping blocks 11. The outer ring guide sleeve 14 has fixed insertion blocks 15 on the front and rear sides of its outer surface. The bottom wall of the outer ring guide sleeve 14 has a second threaded groove 21. The outer ring guide sleeve 14 constrains the radial position of the outer ring of the spherical bearing to ensure that the outer ring does not shift during press fitting.

[0035] Plug-in block 15: Plug-in block 15 is a plug-in connection component. There are two plug-in blocks 15. The plug-in blocks 15 are fixed on the front and rear sides of the outer surface of the outer ring guide sleeve 14 respectively. The plug-in blocks 15 can slide into the plug-in groove 13 of the clamping block 11. A second plug hole 17 is opened on the upper side of the plug-in block 15. The plug-in block 15 connects the outer ring guide sleeve 14 and the clamping block 11 to achieve rapid positioning.

[0036] First insertion hole 16: The first insertion hole 16 is a bolt through structure. There are two first insertion holes 16. The first insertion holes 16 are respectively opened on the upper side of the two clamping blocks 11. The lower end of the first insertion hole 16 extends into the insertion groove 13. The first insertion hole 16 corresponds vertically to the second insertion hole 17 and the threaded hole 18. The first insertion hole 16 provides a through channel for the second bolt 19.

[0037] Second insertion hole 17: The second insertion hole 17 is a bolt through structure. There are two second insertion holes 17. The second insertion holes 17 are respectively opened on the upper side of the two insertion blocks 15. The lower end of the second insertion hole 17 extends to the lower surface of the insertion block 15. The second insertion hole 17 corresponds vertically to the first insertion hole 16 and the threaded hole 18. The second insertion hole 17 provides a through channel for the second bolt 19.

[0038] Threaded hole 18: Threaded hole 18 is a threaded fastening structure. There are two threaded holes 18, which are respectively opened on the bottom wall of the two insertion slots 13. The threaded hole 18 is machined with internal threads. The threaded hole 18 matches the external thread of the second bolt 19. The threaded hole 18 is connected with the second bolt 19 to fix the clamping block 11 and the insertion block 15 into one piece.

[0039] Second bolt 19: The second bolt 19 is a fastening connector. There are two second bolts 19. The second bolt 19 is installed on the upper side of the clamping block 11. The lower end of the second bolt 19 slides through the first insertion hole 16 and the second insertion hole 17. The lower end of the second bolt 19 is threaded into the threaded hole 18. The second bolt 19 locks the outer ring guide sleeve 14 between the two clamping blocks 11.

[0040] Positioning mandrel 20: Positioning mandrel 20 is a positioning component for the inner ring of the bearing. Positioning mandrel 20 is installed on the bottom wall of the outer ring guide sleeve 14. The lower end of positioning mandrel 20 is fixedly connected to threaded rod 22. The outer diameter of the top end of positioning mandrel 20 is adapted to the inner ring of the spherical plain bearing. Positioning mandrel 20 constrains the radial position of the inner ring of the bearing to ensure that the inner ring and the outer ring are coaxial during press fitting.

[0041] Second threaded groove 21: The second threaded groove 21 is a threaded connection structure. The second threaded groove 21 is opened on the bottom wall of the outer ring guide sleeve 14. The second threaded groove 21 is machined with internal threads. The second threaded groove 21 matches the external threads of the threaded rod 22 of the positioning mandrel 20. The second threaded groove 21 realizes the detachable connection between the positioning mandrel 20 and the outer ring guide sleeve 14.

[0042] Threaded rod 22: Threaded rod 22 is a threaded connection component. Threaded rod 22 is fixedly connected to the lower end of positioning mandrel 20. The outer surface of threaded rod 22 is machined with external threads. Threaded rod 22 matches the internal thread of the second threaded groove 21 of outer ring guide sleeve 14. Threaded rod 22 fixes positioning mandrel 20 on outer ring guide sleeve 14 to ensure its stable position.

[0043] Turntable 23: Turntable 23 is an operating and adjusting component. Turntable 23 is installed on the front side of fixed plate 8, and connecting rod 24 is fixedly connected to the rear side of turntable 23. Turntable 23 can be rotated manually. Turntable 23 drives connecting rod 24 and bidirectional screw 25 to rotate by rotating, providing an operating end for adjusting the spacing of clamping block 11.

[0044] Connecting rod 24: Connecting rod 24 is a transmission connection component. Connecting rod 24 is fixedly connected to the rear side of turntable 23. The rear end of connecting rod 24 extends into sliding groove 10 and is fixedly connected to bidirectional screw 25. Connecting rod 24 transmits the rotational motion of turntable 23 to bidirectional screw 25 to realize power transmission.

[0045] Bidirectional screw 25: Bidirectional screw 25 is a transmission adjustment component. Bidirectional screw 25 is fixedly connected to the rear end of connecting rod 24. The rear end thread of bidirectional screw 25 passes through two sliding blocks 12 and is rotatably connected to the rear wall of sliding groove 10. The threads at both ends of bidirectional screw 25 have opposite directions. When bidirectional screw 25 rotates, it drives the two sliding blocks 12 to move closer or further away synchronously.

[0046] Limiting rod 26: The limiting rod 26 is a guide limiting component. There are two limiting rods 26. The limiting rods 26 are fixedly connected to the front wall of the sliding groove 10. The rear end of the limiting rod 26 slides through the two sliding blocks 12 and is fixed to the rear wall of the sliding groove 10. The limiting rods 26 are located on the left and right sides of the bidirectional screw 25 respectively. The limiting rods 26 restrict the circumferential rotation of the sliding block 12 and ensure that it translates along the sliding groove 10.

[0047] Furthermore, during use, first rotate the turntable 23 to drive the fixedly connected connecting rod 24 and the bidirectional screw 25 to rotate synchronously. Since the threads of the bidirectional screw 25 pass through the two sliding blocks 12 and the threads at both ends of the bidirectional screw 25 rotate in opposite directions, and the sliding blocks 12 are constrained by the limiting inserts 26 on the left and right sides, the two sliding blocks 12 will move closer or further away synchronously with the rotation of the bidirectional screw 25, thereby driving the two fixedly connected clamping blocks 11 to move back and forth along the upper side of the fixed plate 8 until the distance between the two clamping blocks 11 matches the size of the outer ring guide sleeve 14 to be adapted. Finally, select a suitable pressure head 5 and then thread the threaded post 7 on the upper side of the pressure head 5 into the inside of the first threaded groove 6.

[0048] Place the outer ring guide sleeve 14 on the upper side of the fixing plate 8 between the two clamping blocks 11, so that the insertion blocks 15 on the front and rear sides of the outer ring guide sleeve 14 slide into the insertion grooves 13 on the opposite sides of the two clamping blocks 11. At this time, the first insertion hole 16 on the clamping block 11 and the second insertion hole 17 on the insertion block 15 are aligned with the threaded hole 18 on the bottom wall of the insertion groove 13. After the lower end of the second bolt 19 passes through the first insertion hole 16 and the second insertion hole 17 in sequence, it is screwed into the threaded hole 18 to complete the fixing of the outer ring guide sleeve 14. At this time, the outer ring guide sleeve 14 is adapted to the outer ring size of the bearing to be press-fitted. According to the inner diameter of the spherical bearing to be press-fitted, select the corresponding size positioning mandrel 20 and screw the threaded rod 22 at the lower end into the second threaded groove 21 on the bottom wall of the outer ring guide sleeve 14 to achieve the fixing of the positioning mandrel 20. The outer diameter of the top end of the positioning mandrel 20 is adapted to the inner ring of the bearing.

[0049] Before press-fitting the spherical plain bearing, the inner ring of the bearing is fitted onto the top of the positioning mandrel 20. The positioning mandrel 20 radially constrains the inner ring, and the outer ring of the bearing naturally falls into the inner ring area of ​​the outer ring guide sleeve 14. The outer ring guide sleeve 14 radially constrains the outer ring, ensuring that the entire bearing is coaxial with the positioning mandrel 20 and the outer ring guide sleeve 14, providing a reference for press-fitting.

[0050] During press fitting, hydraulic cylinder 3 is activated. The hydraulic rod of hydraulic cylinder 3 slides downward along the through hole of fixed frame 2, driving the fixed block 4 fixedly connected at the lower end to move downward synchronously. This, in turn, pushes the press head 5 on the lower side of fixed block 4 downward. During the downward movement of press head 5, it contacts the workpiece to be assembled. The pressure output by hydraulic cylinder 3 presses the outer ring of the spherical bearing into the assembly hole of the workpiece, thus completing the press fitting.

[0051] After the pressing is completed, the hydraulic cylinder 3 drives the hydraulic rod to move upward, which drives the fixed block 4 and the pressing head 5 to reset synchronously and detach from the workpiece. The workpiece with the assembled bearing can then be removed manually or by a robotic arm, completing a single pressing operation.

[0052] When it is necessary to adapt the spherical bearing to the new specification, remove the outer ring guide sleeve 14: unscrew the second bolt 19, slide the outer ring guide sleeve 14 out along the insertion groove 13, replace the outer ring guide sleeve 14 of the corresponding size and fix it in the above manner, unscrew the original positioning mandrel 20, replace the positioning mandrel 20 of the corresponding inner diameter and fix it.

[0053] Example: Application of servo motors replacing turntables in automated production lines Please see Figure 5 The turntable 23 and connecting rod 24 are replaced with servo motor 27. The output shaft of servo motor 27 is fixedly connected to the front end of bidirectional screw 25 through a coupling. Servo motor 27 has its own encoder and is connected to the production line PLC system. The original sliding block 12 and limit rod 26 structure are retained. After replacing it with a servo motor 27, the relevant parameters of the bearing to be pressed are input through the PLC touch screen. The system automatically calculates the spacing that the clamping block 11 needs to be adjusted. After the PLC sends the command, the servo motor 27 drives the bidirectional screw 25 to rotate. The encoder provides real-time feedback on the position. When the spacing of the clamping block 11 reaches the appropriate value, the motor automatically stops. Then, the robotic arm automatically places the outer ring guide sleeve 14 between the clamping blocks 11, so that the plug block 15 slides into the plug groove 13. The second bolt 19 is automatically tightened. Finally, the positioning mandrel 20, the bearing, and the workpiece are automatically fed in sequence. The hydraulic cylinder 3 completes the pressing according to the set pressure. No manual intervention is required throughout the process.

[0054] After replacing it with servo motor 27, the clamping block 11 spacing adjustment accuracy is significantly improved, the outer ring guide sleeve 14 installation offset rate is greatly reduced, and it can be linked with the PLC of the automated production line. There is no need for manual judgment of spacing adaptability and operation adjustment, reducing manual intervention links, and adapting to the continuous operation requirements of the automated production line, improving the stability and efficiency of the pressing process.

[0055] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A tooling for press-fitting spherical bearings, comprising a worktable (1), a fixed frame (2) fixedly connected to the upper side of the worktable (1), the fixed frame (2) being an L-shaped block, and a hydraulic cylinder (3) fixedly connected to the upper side of the fixed frame (2). The hydraulic rod of the hydraulic cylinder (3) slides through the fixed frame (2), and the lower end of the hydraulic rod of the hydraulic cylinder (3) is fixedly connected to the fixed block (4). A fixing plate (8) is installed on the upper side of the workbench (1). Four first bolts (9) are installed on the upper side of the fixing plate (8). The four first bolts (9) are arranged in a rectangular array. The fixing plate (8) is connected to the workbench (1) by the four first bolts (9). A sliding groove (10) is provided on the upper side of the fixing plate (8), and the sliding groove (10) is a rectangular groove, characterized in that: The fixed plate (8) is provided with a quick-release tooling mechanism, which can be quickly adjusted according to the size of the joint bearing to be pressed in as needed. The quick-release tooling mechanism includes two clamping blocks (11), two sliding blocks (12), two insertion slots (13), an outer ring guide sleeve (14), two insertion blocks (15), two first insertion holes (16), two second insertion holes (17), two threaded holes (18), two second bolts (19), a positioning mandrel (20), a second threaded groove (21), a threaded rod (22), a turntable (23), a connecting rod (24), a bidirectional screw (25), and two limiting insertion rods (26).

2. The tooling for press-fitting spherical plain bearings according to claim 1, characterized in that: A pressure head (5) is installed on the lower side of the fixed block (4), and a first threaded groove (6) is opened on the lower side of the fixed block (4). A threaded column (7) is fixedly connected to the upper side of the pressure head (5), and the threaded column (7) is threadedly connected to the inside of the first threaded groove (6).

3. The tooling for press-fitting spherical plain bearings according to claim 1, characterized in that: Both clamping blocks (11) are installed on the upper side of the fixed plate (8). The two clamping blocks (11) are arranged symmetrically in front and behind. Both sliding blocks (12) are slidably connected inside the sliding groove (10). The upper sides of the two sliding blocks (12) are fixedly connected to the two clamping blocks (11) respectively, and the two insertion slots (13) are respectively opened on the opposite surfaces of the two clamping blocks (11). The outer ring guide sleeve (14) is installed on the upper side of the fixed plate (8).

4. The tooling for press-fitting spherical plain bearings according to claim 3, characterized in that: The outer ring guide sleeve (14) is positioned between two clamping blocks (11), and two plug-in blocks (15) are respectively fixed on the front and rear sides of the outer surface of the outer ring guide sleeve (14); The two plug blocks (15) slide into the interior of the two plug slots (13) respectively on the side away from each other, and the two first plug holes (16) are respectively opened on the upper side of the two clamping blocks (11); The lower sides of the two first sockets (16) extend into the interior of the two plug slots (13), and the two second sockets (17) are respectively opened on the upper side of the two plug blocks (15).

5. The tooling for press-fitting spherical plain bearings according to claim 4, characterized in that: The lower sides of the two second insertion holes (17) extend to the lower surfaces of the two insertion blocks (15), and the two threaded holes (18) are respectively opened on the bottom walls of the two insertion slots (13); The first insertion hole (16), the second insertion hole (17) and the threaded hole (18) are arranged vertically and vertically respectively. Two second bolts (19) are respectively installed on the upper side of the two clamping blocks (11). The lower end of the second bolt (19) slides through the first insertion hole (16) and the second insertion hole (17).

6. The tooling for press-fitting spherical plain bearings according to claim 5, characterized in that: The lower end of the second bolt (19) is threaded into the inside of the threaded hole (18), the positioning mandrel (20) is mounted on the bottom wall of the outer ring guide sleeve (14), and the second threaded groove (21) is opened on the bottom wall of the outer ring guide sleeve (14). The threaded rod (22) is fixedly connected to the lower end of the positioning mandrel (20), and the threaded end of the threaded rod (22) extends into the interior of the second threaded groove (21); The turntable (23) is installed on the front side of the fixed plate (8), and the connecting rod (24) is fixedly connected to the rear side of the turntable (23).

7. The tooling for press-fitting spherical plain bearings according to claim 6, characterized in that: The rear end of the connecting rod (24) extends rotatably into the interior of the sliding groove (10), and the bidirectional screw (25) is fixedly connected to the rear end of the connecting rod (24). The rear end of the bidirectional screw (25) is threaded through the two sliding blocks (12). The rear end of the bidirectional screw (25) is rotatably connected to the rear wall of the sliding groove (10), and the two limiting rods (26) are fixedly connected to the front wall of the sliding groove (10). The rear ends of the two limiting rods (26) slide through the two sliding blocks (12) respectively. The rear ends of the two limiting rods (26) are fixedly connected to the rear wall of the sliding groove (10), and the two limiting rods (26) are respectively set on the left and right sides of the bidirectional screw (25).

8. The tooling for press-fitting spherical plain bearings according to claim 1, characterized in that: The turntable (23) and connecting rod (24) are replaced by a servo motor (27). The output shaft of the servo motor (27) is fixedly connected to the front end of the bidirectional screw (25) through a coupling. The servo motor (27) has its own encoder and is connected to the production line PLC system.

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