Positioning device

Abstract

The invention provides a positioning device, and belongs to the technical field of mechanical part installation. The positioning device comprises a supporting table and a clamping assembly. The clamping assembly comprises a rotating disc, a plurality of clamping pieces and a plurality of connecting pieces arranged in one-to-one correspondence with the clamping pieces. The rotating disc is rotatably located on one side of the supporting table. The multiple clamping pieces are arranged at intervals in the circumferential direction of the rotating disc and are all partially located in the supporting table, and each clamping piece in the multiple clamping pieces can move in the radial direction of the rotating disc; the multiple connecting pieces and the rotating disc are movably located in the supporting table, each connecting piece in the multiple connecting pieces is movably connected with the corresponding clamping piece and the rotating disc, and the connecting pieces are used for driving the corresponding clamping pieces to move when the rotating disc rotates. The assembly effect of the bearing and the rotating shaft can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical parts installation, and in particular relates to a positioning device. Background Art

[0002] A bearing is a part used to support a rotating shaft and reduce the friction coefficient of the rotating shaft during movement. When in use, the bearing is generally inserted into the outside of the rotating shaft with an interference fit.

[0003] In the related art, when the rotating shaft is pressed into the inner hole of the bearing, it is generally necessary to use a positioning device. During the pressing, the bearing is fixed by the positioning device, and then the rotating shaft is pressed into the inner hole of the bearing through the pressing structure. The positioning device is generally a clamping tool. The positioning device includes a fixed seat, a threaded rod, and two relatively arranged arc-shaped pieces. The two arc-shaped pieces are movably located on the fixed seat and can move relative to each other or away from each other. The two arc-shaped pieces are threadedly connected to the threaded rod, and the threads of the two arc-shaped pieces are in opposite directions. When the bearing needs to be positioned, the bearing is located between the two arcs, and then the threaded rod is controlled to rotate so that the two arc-shaped pieces are close to each other and then fit against the outer wall of the bearing to achieve the clamping and positioning of the bearing.

[0004] However, when the above positioning device is used to position the bearing, since it can only apply force to the opposite sides of the bearing through the arc-shaped pieces, the force on the bearing in the circumferential direction is uneven, thereby affecting the coaxiality between the bearing and the shaft, and further affecting the assembly effect. Summary of the invention

[0005] The embodiment of the present disclosure provides a positioning device, which can improve the assembly effect of the bearing and the rotating shaft. The technical solution is as follows:

[0006] An embodiment of the present disclosure provides a positioning device, which includes a support table and a clamping assembly, wherein the clamping assembly includes a rotating disk, a plurality of clamping members, and a plurality of connecting members arranged in a one-to-one correspondence with the plurality of clamping members; the rotating disk is rotatably located on one side of the support table; the plurality of clamping members are arranged at intervals along the circumference of the rotating disk, and are partially located in the support table, and each of the plurality of clamping members can move radially along the rotating disk; the plurality of connecting members and the rotating disk are movably located in the support table, and each of the plurality of connecting members is movably connected to the corresponding clamping member and the rotating disk, and the connecting member is used to drive the corresponding clamping member to move when the rotating disk rotates.

[0007] In another implementation of the present disclosure, the rotating disk includes a disk body and a plurality of first rotating shafts, and the plurality of first rotating shafts are arranged in a one-to-one correspondence with the plurality of connecting members; the plurality of first rotating shafts are distributed at intervals along the circumference of the disk body, and are all connected to the same disk surface of the disk body; the connecting member includes a rotating plate and a second rotating shaft, the rotating plate is a long plate-like structure, the length direction of the rotating plate is the radial direction of the rotating disk, and one end of the rotating plate is movably mounted outside the first rotating shaft corresponding to the rotating plate; the second rotating shaft is located outside the disk body and at one end of the rotating plate away from the first rotating shaft, and the second rotating shaft is connected to the rotating plate, and the second rotating shaft is movably inserted into the clamping member corresponding to the connecting member.

[0008] In another implementation of the present disclosure, the support platform is provided with sliding grooves corresponding to the multiple clamping members one by one, and the length direction of the sliding groove is the radial direction of the disk body; the clamping member includes a clamping block and a sliding block, the clamping block is located on the side of the sliding block away from the rotating plate along the axial direction of the rotating disk, and the clamping block is connected to the sliding block; the sliding block is movably located in the corresponding sliding groove and fits with the groove wall of the corresponding sliding groove.

[0009] In another implementation of the present disclosure, the clamping member also includes an extrusion plate and a plurality of first elastic members, wherein the extrusion plate is located on one side of the clamping block along the radial inward direction of the rotating disk; the plurality of first elastic members are spaced apart between the extrusion plate and the clamping block, and both ends of each of the plurality of first elastic members are respectively connected to the extrusion plate and the clamping block.

[0010] In another implementation of the present disclosure, the clamping block has a plurality of guide holes arranged at intervals, and the guide holes extend radially along the rotating disk; the clamping member also includes a plurality of guide rods arranged in a one-to-one correspondence with the plurality of first elastic members, and the plurality of guide rods correspond one-to-one to the plurality of guide holes, each of the plurality of guide rods is located in the corresponding first elastic member, and one end of the guide rod is movably located in the corresponding guide hole, and the other end is connected to the extrusion plate.

[0011] In another implementation of the present disclosure, a nut is embedded in the support platform; the positioning device also includes a lateral adjustment component, which includes a frame, a lateral drive member and a lateral adjustment rod, the frame is sleeved outside the support platform, the lateral drive member is located outside the frame and connected to the frame, one end of the lateral adjustment rod is connected to the lateral drive member, the other end of the lateral adjustment rod is located in the frame and threadedly connected to the nut of the support platform, and the length direction of the lateral adjustment rod is perpendicular to the axial direction of the rotating disk.

[0012] In another implementation of the present disclosure, the positioning device also includes a longitudinal adjustment component, which includes a base, a longitudinal drive, a longitudinal adjustment rod and an adjustment block, the base is located on one side of the frame; the longitudinal drive is located on the base and the bases are connected, one end of the longitudinal adjustment rod is connected to the longitudinal drive, and the other end of the longitudinal adjustment rod is rotatably located in the base, the longitudinal drive is used to drive the longitudinal adjustment rod to rotate around itself as the axis, and the length direction of the longitudinal adjustment rod is perpendicular to the length direction of the transverse adjustment rod; the adjustment block is sleeved outside the longitudinal adjustment rod and is threadedly connected to the longitudinal adjustment rod, and the adjustment block is connected to the frame.

[0013] In another embodiment of the present disclosure, the positioning device further includes a protective assembly, which includes a bracket, a protective cover and a protective drive, wherein the bracket is located outside the base and is connected to the base; the protective cover is located between the bracket and the support platform along the axial direction of the rotating disk, and the protective cover is movably connected to the bracket; the protective drive is located on a side of the bracket away from the support platform and is connected to the bracket, and the protective drive is connected to the protective cover for driving the protective cover to move along the axial direction of the rotating disk, so that the protective cover closes the clamping assembly after the clamping assembly clamps the bearing.

[0014] In another implementation of the present disclosure, the protective cover includes a pressure cover, a protective frame and a plurality of second elastic members, the pressure cover is movably inserted into the protective frame, and together with the protective frame defines a protective space for accommodating the clamping assembly; the plurality of second elastic members are located between the pressure cover and the protective frame at circumferential intervals along the protective frame, the two ends of the second elastic member are respectively connected to the pressure cover and the protective frame, and the extension and retraction direction of the second elastic member is the axial direction of the rotating disk.

[0015] In another implementation of the present disclosure, the positioning device also includes a support assembly, which is located on a side of the base away from the lateral adjustment assembly; the support assembly includes a plurality of support feet, which are arranged at intervals, and one end of the plurality of support feet along the axial direction of the rotating disk is connected to the base, and one end of the plurality of support feet can move relative to the other end thereof along the axial direction of the rotating disk.

[0016] The technical solution provided by the embodiments of the present disclosure has the following beneficial effects:

[0017] Since the clamping assembly includes a rotating disk, a plurality of clamping members, and a plurality of connecting members arranged one-to-one with the plurality of clamping members, the rotating disk can provide a mounting base for the clamping members, and the clamping members and the rotating disk can be connected together through the connecting members. In this way, when the bearing needs to be clamped, the bearing can be placed on the support table first, and then the rotating disk can be controlled to rotate. After the rotating disk rotates, the plurality of clamping members can be driven by the connecting members to move synchronously inward along the radial direction of the rotating disk, thereby clamping the bearing. Conversely, when the bearing needs to be released, the rotating disk is controlled to rotate in the opposite direction. After the rotating disk rotates in the opposite direction, the plurality of clamping members can be driven by the connecting members to move synchronously outward along the radial direction of the rotating disk, thereby releasing the bearing.

[0018] Since the plurality of clamping members are arranged at intervals along the circumference of the rotating disk, the clamping members will uniformly apply clamping force to the circumference of the bearing when clamping the bearing, so that the force on the circumference of the bearing is balanced, thereby improving the positioning accuracy of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 is a structural schematic diagram of a positioning device provided by an embodiment of the present disclosure;

[0021] Figure 2 yes Figure 1 An exploded schematic diagram of the clamping assembly;

[0022] Figure 3 for Figure 1 A schematic diagram of the structure of the support platform;

[0023] Figure 4 for Figure 2 A schematic diagram of the structure of one of the clamping parts;

[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0025] Figure 6 A schematic diagram of the structure of another positioning device provided in an embodiment of the present disclosure;

[0026] Figure 7 for Figure 6 The structural schematic diagram of the support platform and the clamping assembly is not shown;

[0027] Figure 8 for Figure 6 Schematic diagram of the structure of the middle protective cover;

[0028] Fig. 9 for Figure 8 Enlarged view of point B in the middle;

[0029] Fig.10 for Figure 6 A schematic diagram of the structure of one of the supporting legs.

[0030] The symbols in the figure mean the following:

[0031] 1. Support platform; 10. Slide groove; 11. Limiting protrusion;

[0032] 2. Clamping assembly; 21. Rotating disk; 211. Disk body; 212. First rotating shaft; 213. Rotating driving member; 22. Clamping member; 221. Clamping block; 2210. Guide hole; 2211. First limiting groove; 222. Sliding block; 223. Extrusion plate; 224. First elastic member; 225. Guide rod; 226. First limiting block; 23. Connecting member; 231. Rotating plate; 232. Second rotating shaft;

[0033] 3. lateral adjustment assembly; 31. frame; 311. guide block; 310. through slot; 32. lateral drive member; 33. lateral adjustment rod;

[0034] 4. Longitudinal adjustment assembly; 41. Base; 410. Guide groove; 42. Longitudinal drive member; 43. Longitudinal adjustment rod; 44. Adjustment block;

[0035] 5. Protective assembly; 51. Bracket; 511. Intermediate connecting plate; 512. Vertical plate; 513. Limiting rod; 52. Protective cover; 520. Protective space; 521. Gland; 5210. Built-in slot; 522. Protective frame; 5220. Insertion hole; 5221. Second limiting slot; 523. Second elastic member; 524. Insertion rod; 525. Second limiting block; 526. Connecting rod; 53. Protective drive member;

[0036] 6. Support assembly; 61. Support foot; 611. Support rod; 612. Support sleeve; 613. Activity ball; 614. Support plate; 615. Push rod; 62. Caster. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0038] The present disclosure provides a positioning device, such as Figure 1 As shown, the positioning device includes a support platform 1 and a clamping assembly 2.

[0039] Figure 2 yes Figure 1 Schematic diagram of the disassembled clamping assembly, combined with Figure 2 The clamping assembly 2 includes a rotating disk 21, a plurality of clamping members 22, and a plurality of connecting members 23 arranged one by one corresponding to the plurality of clamping members 22. The rotating disk 21 is rotatably located on one side of the support platform 1. The plurality of clamping members 22 are arranged at intervals along the circumference of the rotating disk 21, and are partially located in the support platform 1, and each of the plurality of clamping members 22 can move along the radial direction of the rotating disk 21.

[0040] The multiple connecting members 23 and the rotating disk 21 are all movably located in the support platform 1, and each connecting member 23 among the multiple connecting members 23 is movably connected to the corresponding clamping member 22 and the rotating disk 21, respectively, and the connecting member 23 is used to drive the corresponding clamping member 22 to move when the rotating disk 21 rotates.

[0041] When the positioning device provided by the embodiment of the present disclosure is used to clamp and position bearings, etc., the support table 1 can provide an installation foundation for the clamping assembly 2 and a placement platform for the bearing.

[0042] Since the clamping assembly 2 includes a rotating disk 21, a plurality of clamping members 22, and a plurality of connecting members 23 arranged one by one corresponding to the plurality of clamping members 22, the rotating disk 21 can provide a mounting base for the clamping members 22, and the clamping members 22 can be connected to the rotating disk 21 through the connecting members 23. In this way, when the bearing needs to be clamped, the bearing can be placed on the support platform 1 first, and then the rotating disk 21 can be controlled to rotate. After the rotating disk 21 rotates, the plurality of clamping members 22 can be driven by the connecting members 23 to move inward along the radial direction of the rotating disk 21, thereby clamping the bearing. Conversely, when the bearing needs to be released, the rotating disk 21 can be controlled to rotate in the opposite direction. After the rotating disk 21 rotates in the opposite direction, the plurality of clamping members 22 can be driven by the connecting members 23 to move outward along the radial direction of the rotating disk 21, thereby releasing the bearing.

[0043] Since the plurality of clamping members 22 are arranged at intervals along the circumference of the rotating disk 21 , the clamping members 22 will apply a clamping force on the circumference of the bearing when clamping the bearing, so that the force on the bearing in the circumference is balanced, thereby improving the positioning accuracy of the bearing.

[0044] Continue to see Figure 2 The rotating disk 21 includes a disk body 211 and a plurality of first rotating shafts 212, and the plurality of first rotating shafts 212 are arranged one by one corresponding to the plurality of connecting members 23. The plurality of first rotating shafts 212 are distributed at intervals along the circumference of the disk body 211, and are all connected to the same disk surface of the disk body 211.

[0045] The connecting member 23 includes a rotating plate 231 and a second rotating shaft 232. The rotating plate 231 is a long plate-shaped structure, and the length direction of the rotating plate 231 is the radial direction of the rotating disk 21. One end of the rotating plate 231 is movably sleeved outside the first rotating shaft 212 corresponding to the rotating plate 231. The second rotating shaft 232 is located outside the disk body 211 and at one end of the rotating plate 231 away from the first rotating shaft 212. The second rotating shaft 232 is connected to the rotating plate 231 and movably inserted into the clamping member 22 corresponding to the connecting member 23.

[0046] In the above implementation, the disc body 211 can rotate around its own axis. The first rotating shaft 212 is used to enable the connecting member 23 to rotate relative to the disc body 211. The second rotating shaft 232 is used to enable the clamping member 22 to rotate relative to the rotating plate 231.

[0047] When the disk body 211 rotates, the rotation of the disk body 211 drives the first rotating shaft 212 to rotate synchronously around the axis of the disk body 211. When the first rotating shaft 212 rotates, it drives one side of the rotating plate 231 to move radially inwardly toward the disk body 211. After the rotating plate 231 moves, it drives the second rotating shaft 232 to move. The movement of the second rotating shaft 232 drives the clamping member 22 to move radially inwardly toward the disk body 211, so that the clamping member 22 holds the bearing tightly.

[0048] In other examples, the clamping member 22 can also be connected to the rotating disk 21 through a connecting member 23 of other structures. For example, the rotating disk has an inner toothed ring on its inner wall. The connecting member 23 is a plurality of pinions meshing with the inner toothed ring of the rotating disk. The clamping member 22 is radially arranged with racks meshing with the pinions. In this way, after the rotating disk rotates, the pinions rotate accordingly, and the pinions drive the racks to move radially along the rotating disk, thereby realizing the radial movement of the clamping member 22. However, this structure is not very convenient to arrange.

[0049] Figure 3 for Figure 1 The structural diagram of the support platform in Figure 3 Optionally, a slide groove 10 corresponding to the plurality of clamping members 22 is provided in the support platform 1 , and the length direction of the slide groove 10 is the radial direction of the disk body 211 .

[0050] Continue to see Figure 2 The clamping member 22 includes a clamping block 221 and a slider 222. The clamping block 221 is located on a side of the slider 222 away from the rotating plate 231 along the axis direction of the rotating disk 21, and the clamping block 221 is connected to the slider 222. Part of the structure of the slider 222 is movably located in the corresponding slide groove 10 of the clamping member 22, and is in contact with the corresponding groove wall of the slide groove 10.

[0051] In the above implementation, the clamping block 221 is used to clamp the bearing. The slider 222 is used to cooperate with the slide slot 10 to limit the movement of the clamping block 221 so that the clamping block 221 can only move along the radial direction of the rotating disk 21.

[0052] For the convenience of arrangement, the slider 222 is an I-shaped block, and the middle of the slider 222 is limited in the slide slot 10. The slider 222 is connected to the clamping block 221 and the rotating plate 231 by welding on both sides along the axis direction of the rotating disk 21.

[0053] Continue to see Figure 2 Optionally, the clamping member 22 further includes a squeeze plate 223 and a plurality of first elastic members 224. The squeeze plate 223 is located on one side of the clamping block 221 along the radial inward direction of the rotating disk 21. The plurality of first elastic members 224 are spaced between the squeeze plate 223 and the clamping block 221, and the two ends of each of the plurality of first elastic members 224 are respectively connected to the squeeze plate 223 and the clamping block 221. The expansion and contraction direction of the first elastic member 224 is the length direction of the first elastic member 224, and is the radial direction of the rotating disk 21.

[0054] In the above implementation, the extrusion plate 223 is used to contact the bearing. The first elastic member 224 is used to flexibly connect the extrusion plate 223 and the clamping block 221. In this way, when the bearing is clamped, the elastic force of the first elastic member 224 can slowly make the extrusion plate 223 contact the bearing, preventing the extrusion plate 223 from damaging the bearing by excessive force. At the same time, when multiple clamping members 22 are synchronously clamped, the different expansion and contraction amounts of the first elastic member 224 can ensure that each extrusion plate 223 can fit together with the outer wall of the bearing, thereby improving the positioning effect.

[0055] Exemplarily, a rubber pad is provided on one side of the extrusion plate 223 away from the clamping block 221. The rubber pad can increase the friction between the extrusion plate 223 and the bearing, and can also prevent the extrusion plate 223 from hard contact with the bearing, thereby preventing the extrusion plate 223 from damaging the bearing and affecting the subsequent use of the bearing.

[0056] Figure 4 for Figure 2 Schematic diagram of the structure of the clamping part, combined with Figure 4 Optionally, the clamp block 221 has a plurality of guide holes 2210 arranged at intervals, and the guide holes 2210 extend along the radial direction of the rotating disk 21. The clamping member 22 further includes a plurality of guide rods 225 arranged one-to-one corresponding to the plurality of first elastic members 224, the plurality of guide rods 225 correspond one-to-one to the plurality of guide holes 2210, each of the plurality of guide rods 225 is located in the corresponding first elastic member 224, and one end of the guide rod 225 is movably located in the corresponding guide hole 2210, and the other end is connected to the extrusion plate 223.

[0057] In the above implementation, the guide rod 225 is provided so that the first elastic member 224 does not bend when contracted, thereby preventing the bent first elastic member 224 from affecting the rebound effect. The guide hole 2210 is used to realize the movable connection between the guide rod 225 and the clamping block 221, and also to limit the guide rod 225.

[0058] Figure 5 for Figure 4 The enlarged picture of A in the middle, combined with Figure 5 Optionally, at least one first limiting groove 2211 is provided in the hole wall of the guide hole 2210, the first limiting groove 2211 is communicated with the guide hole 2210, and the first limiting groove 2211 extends along the axial direction of the guide hole 2210. At least one first limiting block 226 is provided on the outer wall of the guide rod 225, the first limiting block 226 is connected to the guide rod 225, and corresponds to the first limiting groove 2211 one by one, and the first limiting block 226 is located in the corresponding first limiting groove 2211.

[0059] In the above implementation, the cooperation between the first limiting groove 2211 and the first limiting block 226 can further limit the movement of the guide rod 225 , so that the guide rod 225 can only move along the radial direction of the rotating disk 21 .

[0060] In the embodiment of the present disclosure, in order to improve the limiting effect, there are two first limiting grooves 2211 and two first limiting blocks 226, and the two first limiting blocks 226 are respectively located on opposite sides of the same diameter of the guide rod 225. The two first limiting blocks 226 correspond to the two first limiting grooves 2211 one by one.

[0061] The first elastic member 224 is a telescopic spring. In order to simplify the structure, there are four clamping members 22 , and the four clamping members 22 are evenly distributed along the circumference of the rotating disk 21 .

[0062] See again Figure 1 Optionally, a nut is embedded in the support platform 1. The positioning device also includes a lateral adjustment component 3, which includes a frame 31, a lateral drive member 32 and a lateral adjustment rod 33. The frame 31 is sleeved outside the support platform 1. The lateral drive member 32 is located outside the frame 31 and connected to the frame 31. One end of the lateral adjustment rod 33 is connected to the lateral drive member 32. The other end of the lateral adjustment rod 33 is located in the frame 31 and is threadedly connected to the nut of the support platform 1. The length direction of the lateral adjustment rod 33 is perpendicular to the axial direction of the rotating disk 21.

[0063] In the above implementation, the lateral adjustment component 3 can control the horizontal movement of the support platform 1, and then adjust the movement of the support platform 1 along the length direction of the lateral adjustment rod 33, so that the bearing on the support platform 1 can be positioned according to actual needs.

[0064] In actual use, the lateral adjustment rod 33 is controlled to rotate about its own axis by the lateral driving member 32. After the lateral adjustment rod 33 rotates, the support platform 1 threadedly connected to the lateral adjustment rod 33 can move along the length direction of the lateral adjustment rod 33, thereby moving the support platform 1.

[0065] In the disclosed embodiment, the transverse driving member 32 is a motor, and the output end of the transverse driving member 32 is connected to the end of the transverse adjustment rod 33 through a coupling. The transverse adjustment rod 33 is a screw with a thread on the outer wall. The nut in the support platform 1 has an internal thread matching the thread of the transverse adjustment rod 33.

[0066] Continue to see Figure 1 Optionally, two opposite side walls of the frame body 31 have through slots 310 , and the length direction of the through slots 310 is the same as the length direction of the lateral adjustment rod 33 .

[0067] The support platform 1 has limiting protrusions 11 on opposite sides. The limiting protrusions 11 correspond to the through slots 310 one by one, and the limiting protrusions 11 are movably located in the corresponding through slots 310 . The limiting protrusions 11 fit the groove walls of the corresponding through slots 310 .

[0068] In the above implementation, the cooperation between the through groove 310 and the limiting protrusion 11 can limit the movement of the support platform 1, so that the support platform 1 can only move along the length direction of the lateral adjustment rod 33 under the control of the lateral adjustment component 3, thereby improving the positioning effect of the bearing.

[0069] Figure 6 A schematic diagram of another positioning device provided in an embodiment of the present disclosure, combined with Figure 6 The positioning device also includes a longitudinal adjustment component 4.

[0070] Figure 7 for Figure 6 The structural diagram of the support platform and the clamping assembly is not shown. Figure 7 The longitudinal adjustment assembly 4 includes a base 41 , a longitudinal driving member 42 , a longitudinal adjustment rod 43 and an adjustment block 44 . The base 41 is located on one side of the frame 31 .

[0071] The longitudinal driving member 42 is located on the base 41 and connected to the base 41. One end of the longitudinal adjustment rod 43 is connected to the longitudinal driving member 42. The other end of the longitudinal adjustment rod 43 is rotatably located in the base 41. The longitudinal driving member 42 is used to drive the longitudinal adjustment rod 43 to rotate about itself as an axis. The length direction of the longitudinal adjustment rod 43 is perpendicular to the length direction of the transverse adjustment rod 33. The adjustment block 44 is sleeved outside the longitudinal adjustment rod 43 and is threadedly connected to the longitudinal adjustment rod 43. The adjustment block 44 is connected to the frame 31.

[0072] In the above implementation, the base 41 is used to provide an installation foundation for the frame 31, the longitudinal drive member 42, the longitudinal adjustment rod 43 and the adjustment block 44. The longitudinal drive member 42 is used to drive the longitudinal adjustment rod 43 to rotate. The adjustment block 44 is used to threadably cooperate with the longitudinal adjustment rod 43, so that after the longitudinal adjustment rod 43 rotates, the adjustment block 44 can move along the length direction of the longitudinal adjustment rod 43, thereby driving the frame 31 to move. After the frame 31 moves, it can move with the support platform 1 in the frame 31.

[0073] Optionally, at least one trapezoidal guide groove 410 is formed on the surface of the base 41 facing the frame body 31 , and the extending direction of the guide groove 410 is the same as the length direction of the longitudinal adjustment rod 43 .

[0074] The frame 31 has at least one trapezoidal guide block 311 on one side facing the base 41 . The guide block 311 corresponds to the guide groove 410 one by one. The guide block 311 is movably located in the guide groove 410 and fits against the groove wall of the guide groove 410 .

[0075] In the above implementation, the movement of the frame 31 can be limited by the cooperation between the guide block 311 and the guide groove 410 , so that the frame 31 can only move along the length direction of the longitudinal adjustment rod 43 with the support platform 1 .

[0076] In the disclosed embodiment, in order to improve the limiting effect, there are two guide blocks 311 , and there are also two guide grooves 410 corresponding to the two guide blocks 311 . The two guide grooves 410 are arranged at intervals along the length direction of the lateral adjustment rod 33 .

[0077] Optionally, the positioning device further includes a protection component 5, which includes a bracket 51, a protection cover 52 and a protection drive 53. The bracket 51 is located outside the base 41, and the bracket 51 is connected to the base 41. The protection cover 52 is located between the bracket 51 and the support platform 1 along the axial direction of the rotating disk 21, and the protection cover 52 is movably connected to the bracket 51. The protection drive 53 is located on the side of the bracket 51 away from the support platform 1 and is connected to the bracket 51. The protection drive 53 is connected to the protection cover 52 and is used to drive the protection cover 52 to move along the axial direction of the rotating disk 21, so that the protection cover 52 closes the clamping assembly 2 after the clamping assembly 2 clamps the bearing.

[0078] In the above implementation, the protective assembly 5 is used to cover the clamping assembly 2, so that when the bearing is positioned and pressed together with the shaft, the shaft is prevented from jumping out due to pressure, thereby improving the safety of the device. The bracket 51 is used to provide a mounting base for the protective cover 52 and the protective drive 53, and the protective cover 52 is used to cover the outside of the clamping assembly 2. The protective drive 53 is used to drive the protective cover 52 to move, so that the protective cover 52 can move toward or away from the clamping assembly 2.

[0079] In the disclosed embodiment, the protection driving member 53 is a cylinder. The output end of the cylinder is connected to the pressure cover 521. The length direction of the piston rod of the cylinder is the axis direction of the rotating disk 21. By extending and retracting the piston rod of the cylinder, the pressure cover 521 can be controlled to drive the protection frame 522 to move toward or away from the support platform 1.

[0080] Figure 8 for Figure 6 Schematic diagram of the structure of the protective cover, combined with Figure 8 Optionally, the protective cover 52 includes a pressure cover 521, a protective frame 522 and a plurality of second elastic members 523. The pressure cover 521 is movably inserted into the protective frame 522, and together with the protective frame 522 defines a protective space 520 for accommodating the clamping assembly 2. A pressing module for pressing the bearing is provided on one side of the pressure cover 521 facing the protective space 520.

[0081] A plurality of second elastic members 523 are spaced apart between the pressure cover 521 and the protection frame 522 . Two ends of the second elastic members 523 are respectively connected to the pressure cover 521 and the protection frame 522 . The expansion and contraction direction of the second elastic members 523 is the axial direction of the rotating disk 21 .

[0082] A rotating shaft is provided in the pressing module. When pressing, the pressing cover 521 is moved toward the support platform 1, so that the rotating shaft can be pressed into the inner hole of the bearing synchronously.

[0083] In the above implementation, the protective cover 52 is configured as the above structure, and the pressure cover 521 and the protective frame 522 can be flexibly connected together through the second elastic member 523 .

[0084] In this way, after the bearing is positioned by the clamping assembly 2, the pressure cover 521 can be controlled to move downward. After the pressure cover 521 moves downward, the second elastic member 523 can be used to drive the protection frame 522 to move downward, so that the protection frame 522 covers the positioning area of ​​the bearing. Then, the pressure cover 521 continues to move downward, so that the protection frame 522 squeezes the second elastic member 523, so that the second elastic member 523 generates a rebound force. By providing the second elastic member 523, the second elastic member 523 drives the protection frame 522 to fit closely to the pressing area, thereby improving the protection performance.

[0085] The bearing and the rotating shaft are pressed together by the pressing module in the pressing cover 521. At the same time, the pressing cover 521 and the protective frame 522 can seal the positioning area to prevent the rotating shaft from jumping out due to pressure during positioning and pressing, thereby improving the safety of the device.

[0086] Optionally, the pressure cover 521 is a U-shaped structure, the pressure cover 521 has an opening, and the opening faces the protective frame 522, and the pressure cover 521 has two opposite side walls for defining the opening respectively having built-in grooves 5210, and the extension direction of the built-in grooves 5210 is the axial direction of the rotating disk 21.

[0087] The multiple second elastic members 523 are divided into two second elastic member groups, each second elastic member group includes multiple second elastic members 523, and the two second elastic member groups correspond one-to-one to the opposite side walls of the protective frame 522 and the built-in grooves 5210, respectively. All the second elastic members 523 in each second elastic member group and the side walls of the protective frame 522 connected to the second elastic member group are located in the corresponding built-in grooves 5210.

[0088] In the above implementation, the built-in groove 5210 is used to provide an accommodation space for the second elastic member 523 and the side wall of the protective frame 522 , so that the pressure cover 521 and the protective frame 522 can move relative to each other.

[0089] Optionally, each of the two opposite side walls of the protection frame 522 has a plurality of insertion holes 5220 arranged at intervals, and the axial direction of the insertion holes 5220 is the axial direction of the rotating disk 21 .

[0090] The protective cover 52 also includes a plurality of insertion rods 524, which correspond one-to-one to the plurality of second elastic members 523 and the plurality of insertion holes 5220. One end of the insertion rod 524 is connected to the bottom of the built-in groove 5210, and the other end of the insertion rod 524 is movably located in the corresponding insertion hole 5220, and the middle part of the insertion rod 524 is inserted into the corresponding second elastic member 523.

[0091] In the above implementation, the insertion hole 5220 is used to provide a movable space for the insertion rod 524. The arrangement of the insertion rod 524 can prevent the second elastic member 523 from bending when it retracts, so that the relative movement between the pressure cover 521 and the protection frame 522 can only be along the axis direction of the insertion rod 524.

[0092] Fig. 9 for Figure 8 The enlarged picture of B in the middle, combined with Fig. 9 Optionally, at least one second limiting groove 5221 is provided in the hole wall of the plug hole 5220 , the second limiting groove 5221 is connected to , and the second limiting groove 5221 extends along the axial direction of the plug hole 5220 .

[0093] At least one second limiting block 525 is disposed on the outer wall of the insertion rod 524 . The second limiting block 525 is connected to the insertion rod 524 and corresponds one-to-one with the second limiting groove 5221 . The second limiting block 525 is located in the corresponding second limiting groove 5221 .

[0094] In the above implementation, the cooperation between the second limiting groove 5221 and the second limiting block 525 can further limit the movement of the insertion rod 524, so that the insertion rod 524 can only extend along the axial direction of the insertion hole 5220.

[0095] In the disclosed embodiment, in order to improve the limiting effect, there are two second limiting blocks 525 , and there are also two second limiting grooves 5221 corresponding one to one with the two second limiting blocks 525 . The two second limiting grooves 5221 are arranged relatively along the same diameter of the insertion hole 5220 .

[0096] See again Figure 6 or Figure 7 Optionally, the bracket 51 includes a middle connecting plate 511, two vertical plates 512 and two limit rods 513, the two vertical plates 512 are parallel to each other, and one end of each vertical plate 512 in the length direction is connected to one end of the middle connecting plate 511 in the length direction, and the other end of the vertical plate 512 in the length direction is connected to the base 41. The middle connecting plate 511 is connected to the protective driving member 53.

[0097] The two limiting rods 513 correspond to the two vertical plates 512 one by one, and each limiting rod 513 is located in the side wall of the corresponding vertical plate 512, and the length direction of the limiting rod 513 is the axis direction of the rotating disk 21. The protective cover 52 also includes two connecting rods 526, which are coaxial and respectively located on opposite sides of the pressure cover 521. The two connecting rods 526 correspond to the two limiting rods 513 one by one, and one end of each connecting rod 526 is movably sleeved outside the corresponding limiting rod 513, and the other end of the connecting rod 526 is connected to the pressure cover 521, and the connecting rod 526 is perpendicular to the limiting rod 513.

[0098] In the above implementation, the bracket 51 is set to the above structure, and can be connected to the base 41 through two vertical plates 512, so that the bracket 51 is fixedly installed on the base 41. At the same time, the two vertical plates 512 are connected through the middle connecting plate 511, and the middle connecting plate 511 provides an installation foundation for the protective driving member 53 and the like.

[0099] The two limiting rods 513 are used to cooperate with the two connecting rods 526 so that the protective cover 52 can be slidably connected to the bracket 51. At the same time, the limiting rods 513 are used to limit the movement of the protective cover 52, so that the protective cover 52 can only move along the length direction of the limiting rods 513 under the drive of the protective drive member 53.

[0100] Continue to see Figure 6 or Figure 7Optionally, the positioning device further includes a support assembly 6, which is located on a side of the base 41 away from the lateral adjustment assembly 3. The support assembly 6 includes a plurality of support legs 61, which are arranged at intervals, and one end of each of the plurality of support legs 61 along the axis direction of the rotating disk 21 is connected to the base 41, and one end of each of the plurality of support legs 61 can move relative to the other end thereof along the axis direction of the rotating disk 21.

[0101] In the above implementation, by setting a plurality of support feet 61 at the bottom of the base 41, the support height of the support platform 1 can be adjusted by changing the length of the support feet 61, so that the above structure can flexibly adjust the support height of the support feet 61, thereby avoiding the tilted support platform 1 from affecting the positioning and pressing accuracy of the bearing.

[0102] Fig.10 for Figure 6 A schematic diagram of the structure of one of the supporting legs, combined with Fig.10 Optionally, the support foot 61 includes a support rod 611 and a support sleeve 612, one end of the support rod 611 is connected to the base 41, and the other end of the support rod 611 is movably located in the support sleeve 612 and is threadedly connected to the support rod 611 and the support sleeve 612.

[0103] In the above implementation, the support foot 61 is set to the above structure, and the support height of the support foot 61 can be flexibly adjusted to prevent the tilted support platform 1 from affecting the positioning and pressing accuracy of the bearing.

[0104] For example, by controlling the rotation of the support sleeve 612, the support sleeve 612 can be moved along the outer wall of the support rod 611 through the thread, and the distance between the two ends of the support sleeve 612 and the support rod 611 that are far away from each other can be changed, so that the distance between the support platform 1 and the ground can be adjusted to prevent the tilted support platform 1 from affecting the positioning and pressing accuracy of the bearing.

[0105] In other examples, the supporting leg 61 may also be other structures, such as a telescopic rod, a cylinder, etc.

[0106] Optionally, the support foot 61 further includes a movable ball 613 and a support plate 614, wherein the movable ball 613 is connected to one end of the support sleeve 612 away from the support rod 611. The support plate 614 has a hinge hole in the middle, in which the movable ball 613 is movably located, and the movable ball 613 can swing relative to the support plate 614.

[0107] In the above implementation, by providing the movable ball 613, the bottom of the support sleeve 612 and the support plate 614 can be connected in a ball-joint manner. The support sleeve 612 can rotate in any direction relative to the support plate 614, so that the support plate 614 can be laid flat on an uneven ground. That is, the support foot 61 can be applied to uneven ground.

[0108] Exemplarily, a side of the support plate 614 away from the movable ball 613 is provided with anti-skid rubber, which can increase the friction between the support foot 61 and the ground and prevent the support foot 61 from shifting.

[0109] Optionally, the supporting foot 61 further includes a lever 615 , the middle portion of the lever 615 is connected to the supporting sleeve 612 , and the length direction of the lever 615 is perpendicular to the axial direction of the supporting sleeve 612 .

[0110] In the above implementation, the lever 615 is provided to facilitate manual rotation of the support sleeve 612. That is, by turning the lever 615, the support sleeve 612 can be controlled to rotate, thereby adjusting the support height of the support foot 61. This prevents the tilted support platform 1 from affecting the positioning and pressing accuracy of the bearing.

[0111] See again Figure 6 or Figure 7 Optionally, the support assembly 6 also includes a plurality of casters 62 , which are arranged at intervals and are all rotatably connected to the base 41 , and a rotation axis of each caster 62 in the plurality of casters 62 is perpendicular to a rotation axis of the rotating disk 21 .

[0112] In the above implementation, the casters 62 can make the base 41 in rotational contact with the ground, thereby reducing the friction between the base 41 and the ground, so that no additional mechanical equipment is required for moving the positioning device, which facilitates the transportation or displacement of the positioning device.

[0113] In the disclosed embodiment, there are four casters 62 , and the four casters 62 are respectively located at the four corners of the base 41 .

[0114] The following briefly introduces the use process of the positioning device provided in the embodiment of the present disclosure:

[0115] After the positioning device is moved to the desired position, the positioning device is leveled by adjusting the support foot 61. Then the bearing is placed on the support platform 1, and the disk body 211 is driven to rotate by rotating the driving member 213. After the disk body 211 rotates, the first rotating shaft 212 drives one side of the rotating plate 231 to rotate inward, and the other side of the rotating plate 231 drives the clamping block slider 222 to move radially inwardly of the disk body 211, so that the clamping block 221 moves inward. The clamping block 221 drives the first elastic member 224 and the extrusion plate 223 to move. When the extrusion plate 223 contacts the outer wall of the bearing, the first elastic member 224 contracts, so that each extrusion plate 223 can fit the outer wall of the bearing, thereby effectively fixing the bearing to prevent the bearing from moving.

[0116] Then, the frame 31 is adjusted to move longitudinally by the longitudinal adjustment component 4, and the support platform 1 is adjusted to move transversely by the transverse adjustment component 3, until the bearing is aligned with the rotating shaft that needs to be pressed together.

[0117] Finally, the protection driving member 53 drives the pressing cover 521 to move, and the pressing cover 521 drives the protection frame 522 to move, so that the protection frame 522 and the pressing cover 521 seal the pressing area of ​​the shaft and the bearing to avoid accidental damage to the surrounding during positioning and pressing.

[0118] The above are only optional embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.

Claims

1. A positioning device, characterized in that: The positioning device comprises a support platform (1) and a clamping assembly (2), wherein the clamping assembly (2) comprises a rotating disk (21), a plurality of clamping members (22), and a plurality of connecting members (23) arranged in one-to-one correspondence with the plurality of clamping members (22); The rotating disk (21) is rotatably located on one side of the supporting platform (1); The plurality of clamping members (22) are arranged at intervals along the circumference of the rotating disk (21), and are partially located in the support platform (1); each of the plurality of clamping members (22) is capable of moving along the radial direction of the rotating disk (21); The multiple connecting members (23) and the rotating disk (21) are all movably located in the support platform (1), and each connecting member (23) among the multiple connecting members (23) is movably connected to the corresponding clamping member (22) and the rotating disk (21), respectively, and the connecting member (23) is used to drive the corresponding clamping member (22) to move when the rotating disk (21) rotates.

2. The positioning device according to claim 1, characterized in that: The rotating disk (21) comprises a disk body (211) and a plurality of first rotating shafts (212), wherein the plurality of first rotating shafts (212) are arranged in a one-to-one correspondence with the plurality of connecting members (23); The plurality of first rotating shafts (212) are distributed at intervals along the circumference of the disk body (211), and are all connected to the same disk surface of the disk body (211); The connecting member (23) comprises a rotating plate (231) and a second rotating shaft (232); the rotating plate (231) is a long plate-shaped structure; the length direction of the rotating plate (231) is the radial direction of the rotating disk (21); one end of the rotating plate (231) is movably sleeved outside the first rotating shaft (212) corresponding to the rotating plate (231); The second rotating shaft (232) is located outside the disk body (211) and at an end of the rotating plate (231) away from the first rotating shaft (212). The second rotating shaft (232) is connected to the rotating plate (231). The second rotating shaft (232) is movably inserted into the clamping member (22) corresponding to the connecting member (23).

3. The positioning device according to claim 2, characterized in that: The support platform (1) is provided with sliding grooves (10) corresponding one-to-one to the plurality of clamping members (22), and the length direction of the sliding grooves (10) is the radial direction of the disk body (211); The clamping member (22) comprises a clamping block (221) and a sliding block (222); the clamping block (221) is located on a side of the sliding block (222) away from the rotating plate (231) along the axial direction of the rotating disk (21); and the clamping block (221) is connected to the sliding block (222); The sliding block (222) is movably located in the corresponding sliding groove (10) and is in contact with the groove wall of the corresponding sliding groove (10).

4. The positioning device according to claim 3, characterized in that: The clamping member (22) further comprises a pressing plate (223) and a plurality of first elastic members (224). The extrusion plate (223) is located on one side of the clamping block (221) along the radial inward direction of the rotating disk (21); The plurality of first elastic members (224) are spaced apart and located between the extrusion plate (223) and the clamping block (221), and two ends of each first elastic member (224) among the plurality of first elastic members (224) are respectively connected to the extrusion plate (223) and the clamping block (221).

5. The positioning device according to claim 4, characterized in that: The clamping block (221) has a plurality of guide holes (2210) arranged at intervals, and the guide holes (2210) extend along the radial direction of the rotating disk (21); The clamping member (22) further comprises a plurality of guide rods (225) arranged in one-to-one correspondence with the plurality of first elastic members (224), the plurality of guide rods (225) corresponding one-to-one with the plurality of guide holes (2210), each guide rod (225) of the plurality of guide rods (225) being located in the corresponding first elastic member (224), and one end of the guide rod (225) being movably located in the corresponding guide hole (2210), and the other end being connected to the extrusion plate (223).

6. The positioning device according to any one of claims 1 to 5, characterized in that: A nut is embedded inside the support platform (1); The positioning device further comprises a transverse adjustment component (3), the transverse adjustment component (3) comprising a frame (31), a transverse driving member (32) and a transverse adjustment rod (33), the frame (31) being sleeved outside the support platform (1), the transverse driving member (32) being located outside the frame (31) and connected to the frame (31), one end of the transverse adjustment rod (33) being connected to the transverse driving member (32), the other end of the transverse adjustment rod (33) being located inside the frame (31) and being threadedly connected to a nut of the support platform (1), and the length direction of the transverse adjustment rod (33) being perpendicular to the axial direction of the rotating disk (21).

7. The positioning device according to claim 6, characterized in that: The positioning device further comprises a longitudinal adjustment component (4), the longitudinal adjustment component (4) comprising a base (41), a longitudinal driving member (42), a longitudinal adjustment rod (43) and an adjustment block (44), the base (41) being located on one side of the frame (31); The longitudinal driving member (42) is located on the base (41) and connected to the base (41); one end of the longitudinal adjustment rod (43) is connected to the longitudinal driving member (42); the other end of the longitudinal adjustment rod (43) is rotatably located in the base (41); the longitudinal driving member (42) is used to drive the longitudinal adjustment rod (43) to rotate around itself as an axis; the length direction of the longitudinal adjustment rod (43) is perpendicular to the length direction of the transverse adjustment rod (33); The adjustment block (44) is sleeved outside the longitudinal adjustment rod (43) and is threadedly connected to the longitudinal adjustment rod (43); the adjustment block (44) is connected to the frame (31).

8. The positioning device according to claim 7, characterized in that: The positioning device further comprises a protection component (5), the protection component (5) comprising a bracket (51), a protection cover (52) and a protection drive member (53), the bracket (51) being located outside the base (41), and the bracket (51) being connected to the base (41); The protective cover (52) is located between the bracket (51) and the support platform (1) along the axial direction of the rotating disk (21), and the protective cover (52) is movably connected to the bracket (51); The protective drive component (53) is located on a side of the bracket (51) away from the support platform (1) and is connected to the bracket (51). The protective drive component (53) is connected to the protective cover (52) and is used to drive the protective cover (52) to move along the axial direction of the rotating disk (21) so that the protective cover (52) closes the clamping assembly (2) after the bearing is clamped in the clamping assembly (2).

9. The positioning device according to claim 8, characterized in that: The protective cover (52) comprises a pressure cover (521), a protective frame (522) and a plurality of second elastic members (523). The pressure cover (521) is movably inserted into the protection frame (522), and together with the protection frame (522) defines a protection space (520) for accommodating the clamping assembly (2); a pressing module for pressing the bearing and the rotating shaft together is provided on one side of the pressure cover (521) facing the protection space (520); The plurality of second elastic members (523) are located between the pressure cover (521) and the protection frame (522) at intervals along the circumference of the protection frame (522); the two ends of the second elastic member (523) are respectively connected to the pressure cover (521) and the protection frame (522); and the extension and retraction direction of the second elastic member (523) is the axial direction of the rotating disk (21).

10. The positioning device according to claim 7, characterized in that: The positioning device further comprises a support assembly (6), wherein the support assembly (6) is located on a side of the base (41) away from the lateral adjustment assembly (3); The support assembly (6) comprises a plurality of support legs (61), the plurality of support legs (61) are arranged at intervals, and one end of the plurality of support legs (61) along the axial direction of the rotating disk (21) is connected to the base (41), and one end of each of the plurality of support legs (61) is capable of moving relative to the other end thereof along the axial direction of the rotating disk (21).

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