Bearing assembly tool

Abstract

The invention relates to the field of bearing assembly, in particular to a bearing assembly tool. The bearing assembly tool comprises a support, a carrier positioning unit and a bearing positioning unit, and a storage plate and a hydraulic system used for pressing and assembling a bearing are mounted on the support; the carrier positioning unit is composed of a first driving part and a plurality of first fixing parts which are annularly distributed, the first fixing parts are driven by the first driving part to move in the radial direction, and a carrier provided with a bearing is positioned; and the bearing positioning unit is formed by combining a second driving part and a second fixing part. In the bearing assembly tool provided by the invention, the carrier positioning unit and the bearing positioning unit can position the carrier and the bearing respectively so as to improve the stability of the carrier and the bearing during assembly, and the butt joint precision between the bearing and the carrier can be further improved, so that the subsequent processing is more convenient; and the machining precision can be further improved.

Description

Technical Field

[0001] This invention relates to the field of bearing assembly, and more particularly to a bearing assembly fixture. Background Technology

[0002] Bearings are crucial components in mechanical equipment. Their function is to support rotating parts, reduce friction during movement, and ensure rotational accuracy. Bearings are commonly used to connect rotating and stationary components in machines, bearing loads from all directions to ensure smooth and efficient machine operation. Bearing assembly fixtures are specialized tools used for installing, removing, and adjusting bearings. They help workers assemble bearings more conveniently and efficiently, while ensuring assembly quality and precision.

[0003] There are many types of equipment used for installing bearings, including bearing pullers, bearing presses, bearing heaters, bearing positioning tools, and bearing adjustment tools. Bearing presses, in particular, use hydraulic pressure to squeeze the bearing, thereby pressing the bearing onto a carrier to achieve bearing installation.

[0004] However, the following defects and shortcomings still exist in the application implementation process: In a bearing press, a plate is set at the position corresponding to the hydraulic cylinder. This plate is used to place the carrier and the bearing. However, it does not have a structure for precise positioning of the carrier and the bearing. Therefore, during the initial placement, the bearing and the carrier are prone to deviation, which makes it more difficult to squeeze the bearing later and affects the accuracy of the fit.

[0005] Therefore, it is necessary to provide a new bearing assembly fixture to solve the above-mentioned technical problems. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention provides a bearing assembly fixture.

[0007] The bearing assembly fixture provided by this invention includes a bracket, a shelf mounted on the bracket, and a hydraulic system for pressing and assembling the bearing, and further includes: Carrier positioning unit and bearing positioning unit; The carrier positioning unit consists of a first driving part and several first fixing parts arranged in a ring. The first driving part drives each first fixing part to move radially and positions the carrier on which the bearing is installed. The bearing positioning unit is composed of a second driving part and a second fixing part. The second driving part drives the second fixing part to move and positions the bearing so that the bearing center corresponds perfectly with the carrier center.

[0008] Preferably, a through hole is provided at the center of the shelf, and a plurality of first slides are provided on the side of the shelf in a ring shape with the through hole as the center. The first slides are elongated and their length direction is radially along the through hole. The inner wall of the first slides also has a first groove along the length direction.

[0009] Preferably, the first driving unit includes: The first motor is mounted on the bracket, and the output end of the first motor is connected to a drive sprocket; The adjustment disc rotates at the lower end of the shelf. The upper end of the adjustment disc has several second slides arranged in a ring and corresponding one-to-one with the first slide. The second slides are arc-shaped, with one end close to the center of the adjustment disc and the other end close to the edge of the adjustment disc. The driven chain link is fixed to the lower end of the adjusting disc, and a transmission chain is also provided between the driven chain link and the driving sprocket.

[0010] Preferably, the first fixing part includes: The first slide block slides inside the first slide rail, and the side of the first slide block also has a first slide groove adapted to the first slide rail. A transmission pin is vertically fixed to the lower end of the first slide block, and the transmission pin also extends into the interior of the second slide rail; The first pressure plate is bolted to the first slide block and is used to compress the carrier.

[0011] Preferably, the second drive unit includes: A transmission ring, wherein the inner circumferential wall of the transmission ring has a first tooth; There are several toothed rollers arranged in a ring, and the toothed rollers mesh with the first teeth on the inner wall of the transmission ring. One of the toothed rollers is also coaxially fixed to the output end of the second motor. There are several transmission plates, all of which are I-shaped and have second teeth that mesh with the toothed rollers. The transmission plates are driven to move radially along the transmission ring by the toothed rollers.

[0012] Preferably, the transmission plate is located above the transmission ring, and the toothed roller meshes with both the transmission ring and the transmission plate.

[0013] Preferably, the second fixing part includes: The mounting base is fixed to one end of the transmission plate. A second sliding groove is added to one side of the mounting base near the edge, and a positioning groove is added near the center. A screw located inside the positioning groove is also rotatably connected to the mounting base. The second slide block has a second slide rail and a connecting seat on one side that are adapted to the second slide groove and the positioning groove. The screw also passes through the connecting seat and is threadedly connected to it. The second pressure plate is also bolted to the other side of the second slide block.

[0014] Preferably, the second pressure plate is located above the first pressure plate, and is also driven by a screw to move vertically.

[0015] Preferably, the bearing positioning unit further includes several positioning frames arranged in a ring around the center of the shelf. Each positioning frame includes a foot plate bolted to the side of the shelf, a support plate fixed to one side of the foot plate, and an annular limiting plate fixed to the other end of the support plate. The limiting plate has an L-shaped cross-section and several annularly distributed positioning openings are also provided on the limiting plate.

[0016] Preferably, the transmission ring rotates inside the limiting support plate, while the transmission plate passes through the positioning opening and is slidably connected thereto.

[0017] Compared with related technologies, the bearing assembly fixture provided by the present invention has the following advantages: The carrier positioning unit and the bearing positioning unit can position the carrier and the bearing respectively to improve the stability during assembly. They can also further improve the docking accuracy between the bearing and the carrier, making subsequent processing more convenient and improving the processing accuracy. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the bearing assembly fixture provided by the present invention; Figure 2 As shown in this invention Figure 1 A partial structural diagram; Figure 3 This is a schematic diagram of the structure of the carrier positioning unit and the placement plate shown in this invention. Figure 4 This is a cross-sectional structural schematic diagram of the shelf shown in this invention; Figure 5 This is a schematic diagram of the structure of the first driving unit shown in the present invention; Figure 6 This is a schematic diagram of the structure of the first fixing part shown in the present invention; Figure 7 This is a schematic diagram of the bearing positioning unit shown in the present invention; Figure 8 This is a schematic diagram of the positioning frame shown in the present invention; Figure 9 This is a schematic diagram of the structure of the second drive unit shown in the present invention. Figure 1 ; Figure 10 This is a schematic diagram of the structure of the second drive unit shown in the present invention. Figure 2 ; Figure 11 This is a schematic diagram of the structure of the second fixing part shown in the present invention.

[0019] Labels in the diagram: 1. Bracket; 2. Hydraulic system; 3. Shelf; 31. First slide rail; 32. First chute; 4. Carrier positioning unit; 41. First drive unit; 411. First motor; 412. Drive sprocket; 413. Adjusting disc; 414. Second slide rail; 415. Driven chain link; 416. Transmission chain; 42. First fixing part; 421. First slide block; 422. Transmission pin; 423. First pressure plate; 424. First slide rail; 5. Bearing positioning unit; 51. Second... Drive unit; 511, transmission ring; 512, first tooth; 513, second motor; 514, toothed roller; 515, transmission plate; 516, second tooth; 52, second fixing part; 521, mounting base; 522, second slide groove; 523, positioning groove; 524, screw; 525, second slide block; 526, connecting base; 527, second slide rail; 528, second pressure plate; 53, positioning frame; 531, foot plate; 532, support plate; 533, limit support plate; 534, positioning port. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0022] Please see Figures 1 to 11 This invention provides a bearing assembly fixture, which includes a support 1, a shelf 3 mounted on the support 1, and a hydraulic system 2 for pressing and assembling the bearing. The shelf 3 has a through hole at its center, and several first slide rails 31 arranged in a ring around the through hole are also provided on the side of the shelf 3. The first slide rails 31 are elongated, with their length direction radially along the through hole. The inner wall of the first slide rails 31 also has a first groove 32 along its length direction. The fixture also includes: Carrier positioning unit 4 and bearing positioning unit 5; The carrier positioning unit 4 consists of a first driving part 41 and several first fixing parts 42 arranged in a ring. The first driving part 41 drives each first fixing part 42 to move radially and positions the carrier on which the bearing is installed. The bearing positioning unit 5 is composed of a second driving part 51 and a second fixing part 52. The second driving part 51 drives the second fixing part 52 to move and positions the bearing so that the bearing center corresponds perfectly with the carrier center.

[0023] It should be noted that when assembling the bearing, the carrier is placed on the placement plate 3, and then the bearing is placed on the corresponding position on the carrier. Then, the carrier positioning unit 4 and the bearing positioning unit 5 are used to position the two respectively. Finally, the hydraulic system 2 is used to press the bearing to fix it on the carrier. The carrier positioning unit 4 and bearing positioning unit 5 can fix the carrier and bearing respectively by extrusion, so that they can be extruded by hydraulic system 2 in the future. The stability of the two is higher, and the bearing will not slip and fall or fly away, thus the safety is higher. At the same time, the carrier and bearing are limited to the state with the highest docking accuracy, so it is more convenient during extrusion and the processing quality is improved. In this embodiment, the carrier corresponding to the device needs to be a relatively regular structure, such as a ring.

[0024] In an embodiment of the present invention, please refer to Figure 5 and Figure 6 The first drive unit 41 includes: The first motor 411 is mounted on the bracket 1, and the output end of the first motor 411 is connected to the drive sprocket 412. The adjustment disc 413 rotates at the lower end of the shelf 3. The upper end of the adjustment disc 413 has several annularly distributed second slides 414 that correspond one-to-one with the first slides 31. The second slides 414 are arc-shaped, with one end close to the center of the adjustment disc 413 and the other end close to the edge of the adjustment disc 413. Driven chain link 415 is fixed to the lower end of the adjusting plate 413, and a transmission chain 416 is also provided between the driven chain link 415 and the driving sprocket 412; The first fixing part 42 includes: The first slide block 421 slides inside the first slide rail 31, and the side of the first slide block 421 also has a first slide groove 32 adapted to the first slide rail 424. The transmission pin 422 is vertically fixed to the lower end of the first slide block 421, and the transmission pin 422 also extends into the interior of the second slide rail 414. The first pressure plate 423 is bolted to the first slide block 421 and is used to compress the carrier.

[0025] It should be noted that when the carrier positioning unit 4 is used to position the carrier, the first motor 411 drives the adjusting plate 413 to rotate through the sprocket and chain and other structures. The transmission pin 422 at the lower end of the first slide block 421 extends into the second slide rail 414 on the adjusting plate 413. Therefore, when the adjusting plate 413 rotates, it will exert a force on the transmission pin 422, which will drive the first slide block 421 to slide inside the first slide rail 31. When the first fixing parts 42 are brought together, the first pressure plate 423 can be used to squeeze the carrier and place the carrier in the most central position to achieve the positioning of the carrier. In the first fixing part 42, the first pressure plate 423 is in contact with the carrier. Therefore, the first pressure plate 423 itself will be worn. In order to facilitate the replacement of the first pressure plate 423, it is fixed to the first slide block 421 by bolts. Therefore, the first pressure plate 423 can be disassembled and installed to facilitate its replacement. To further improve the stability of the first slide block 421, a first slide rail 424 is provided on its side. The first slide rail 424 can be embedded in the first slide groove 32 on the inner side of the first slide rail 31, thus further limiting the first slide block 421, improving its stability, and making the user experience of the device better.

[0026] In an embodiment of the present invention, please refer to Figure 9 , Figure 10 and Figure 11 The second drive unit 51 includes: The transmission ring 511 has a first tooth 512 on its inner circumference. There are several toothed rollers 514 arranged in a ring, and the toothed rollers 514 mesh with the first teeth 512 on the inner wall of the transmission ring 511. One of the toothed rollers 514 is also coaxially fixed to the output end of the second motor 513. There are several transmission plates 515, all of which are I-shaped, and each transmission plate 515 has a second tooth 516 that meshes with the toothed roller 514, and the transmission plate 515 is driven to move radially along the transmission ring 511 by the toothed roller 514. The second fixing part 52 includes: Mounting base 521 is fixed to one end of transmission plate 515. A second sliding groove 522 is added to one side of mounting base 521 near the edge, and a positioning groove 523 is added near the center. A screw 524 located inside the positioning groove 523 is also rotatably connected to mounting base 521. The second slide block 525 has a second slide rail 527 and a connecting seat 526 on one side that are adapted to the second slide groove 522 and the positioning groove 523. The screw 524 also passes through the connecting seat 526 and is threadedly connected to it. The second pressure plate 528 is also bolted to the other side of the second slide block 525.

[0027] It should be noted that in the bearing positioning unit 5, one of the toothed rollers 514 is installed at the output end of the second motor 513. Therefore, the second motor 513 can drive the toothed roller 514 to rotate. The toothed roller 514 is connected to the transmission ring 511 through the first tooth 512. When rotating, it can drive the transmission ring 511 to rotate, and then drive the remaining toothed rollers 514 to rotate. The length of the toothed roller 514 is greater than the height of the transmission ring 511. The transmission plate 515, located above the transmission ring 511, also meshes with the toothed roller 514 for transmission. Therefore, when the toothed roller 514 rotates, it can also drive the transmission plate 515 to move. The second fixing part 52 is installed at one end of the transmission plate 515. Therefore, when the transmission plate 515 moves, it can also drive the second fixing part 52 to move, thereby using the second fixing part 52 to squeeze the bearing and achieve the positioning of the bearing. In the second fixing part 52, a second pressure plate 528 is provided on one side of the second slide 525. The second pressure plate 528 has the same structure and the same installation method as the first pressure plate 423. Therefore, it can squeeze and fix the bearing, and at the same time facilitate replacement and maintenance. The connecting seat 526 in the second slide 525 is connected to the screw 524 for transmission. The screw 524 can drive the second slide 525 to move in the vertical direction, thereby adjusting the height of the second pressure plate 528 to ensure that the second pressure plate 528 can contact the bearing without contacting the carrier, thus achieving the fixation of the bearing. In the bearing positioning unit 5, the diameter of the transmission ring 511 is greater than the length of the shelf 3, and the transmission ring 511 can move to the outer side of the shelf 3, so that the entire shelf 3 can be displayed, thus not affecting the placement and retrieval of the workpiece, nor affecting the extrusion process.

[0028] In an embodiment of the present invention, please refer to Figure 8 The bearing positioning unit 5 also includes several positioning frames 53 arranged in a ring around the center of the placement plate 3. The positioning frame 53 includes a foot plate 531 bolted to the side of the placement plate 3. A support plate 532 is fixed to one side of the foot plate 531. An annular limiting plate 533 is fixed to the other end of the support plate 532. The cross section of the limiting plate 533 is L-shaped. Several annularly distributed positioning openings 534 are also provided on the limiting plate 533. The transmission ring 511 rotates inside the limiting support plate 533, while the transmission plate 515 passes through the positioning port 534 and is slidably connected to it.

[0029] It should be noted that the positioning frame 53 is designed for the transmission ring 511 and the transmission plate 515. The various limiting plates 533 are arranged in a ring, and the transmission ring 511 rotates on each limiting plate 533. At the same time, the positioning port 534 is provided for the transmission plate 515 to pass through, which can also play a positioning role for the transmission plate 515, thereby ensuring the normal use of the entire device.

[0030] The operating procedure for this device is as follows: (1) Placement and positioning of the carrier; First, a regularly shaped carrier is placed on the placement plate 3, and then fixed by the carrier positioning unit 4. When the carrier is positioned by the carrier positioning unit 4, the first motor 411 drives the adjustment plate 413 to rotate through the sprocket and chain structure. The transmission pin 422 at the lower end of the first slide 421 extends into the second slide rail 414 on the adjustment plate 413. Therefore, when the adjustment plate 413 rotates, it will exert a force on the transmission pin 422, which will drive the first slide 421 to slide inside the first slide rail 31. When the first fixing parts 42 are brought together, the first pressure plate 423 can be used to squeeze the carrier and place the carrier in the most central position, thus achieving the positioning of the carrier. (2) Placement and positioning of bearings; The bearing is placed in the corresponding position on the carrier and fixed using the bearing positioning unit 5. When the bearing is fixed using the bearing positioning unit 5, one of the toothed rollers 514 is installed at the output end of the second motor 513, so the second motor 513 can drive the toothed roller 514 to rotate. The toothed roller 514 is connected to the transmission ring 511 through the first tooth 512. When it rotates, it can drive the transmission ring 511 to rotate, and then the transmission ring 511 drives the remaining toothed rollers 514 to rotate. The second fixing part 52 is installed at one end of the transmission plate 515. Therefore, when the transmission plate 515 moves, it can also drive the second fixing part 52 to move, thereby using the second fixing part 52 to squeeze the bearing and achieve the positioning of the bearing. In the second fixing part 52, a second pressure plate 528 is provided on one side of the second slide 525. The second pressure plate 528 has the same structure and installation method as the first pressure plate 423, so it can squeeze and fix the bearing. (3) Press assembly; The bearing is pressed by the hydraulic system 2 to achieve the assembly between the bearing and the carrier.

[0031] The above are merely embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A bearing assembly fixture, comprising a bracket (1), a shelf (3) mounted on the bracket (1), and a hydraulic system (2) for pressing and assembling the bearing, characterized in that, Also includes: Carrier positioning unit (4) and bearing positioning unit (5); The carrier positioning unit (4) consists of a first driving part (41) and several first fixing parts (42) arranged in a ring. The first driving part (41) drives each first fixing part (42) to move radially and positions the carrier on which the bearing is installed. The bearing positioning unit (5) is composed of a second driving part (51) and a second fixing part (42). The second driving part (51) drives the second fixing part (42) to move and positions the bearing so that the bearing center corresponds completely with the carrier center.

2. The bearing assembly fixture according to claim 1, characterized in that, The center of the shelf (3) is provided with a through hole, and a number of first slides (31) are provided on the side of the shelf (3) in a ring shape with the through hole as the center. The first slides (31) are long strips with their length direction along the radial direction of the through hole. The inner wall of the first slides (31) also has a first groove (32) along the length direction.

3. The bearing assembly fixture according to claim 2, characterized in that, The first drive unit (41) includes: The first motor (411) is mounted on the bracket (1), and the output end of the first motor (411) is connected to the drive sprocket (412). The adjustment disc (413) rotates at the lower end of the shelf (3). The upper end of the adjustment disc (413) is provided with several second slides (414) that are distributed in a ring and correspond one-to-one with the first slide (31). The second slides (414) are arc-shaped, with one end close to the center of the adjustment disc (413) and the other end close to the edge of the adjustment disc (413). The driven chain link (415) is fixed to the lower end of the adjusting disc (413), and a transmission chain (416) is also provided between the driven chain link (415) and the driving sprocket (412).

4. The bearing assembly fixture according to claim 3, characterized in that, The first fixing part (42) includes: The first slide block (421) slides inside the first slide rail (31), and the side of the first slide block (421) also has a first slide groove (32) adapted to the first slide rail (424). A transmission pin (422) is vertically fixed to the lower end of the first slide block (421), and the transmission pin (422) also extends into the interior of the second slide rail (414); The first pressure plate (423) is bolted to the first slide (421) and is used to compress the carrier.

5. The bearing assembly fixture according to claim 4, characterized in that, The second drive unit (51) includes: The transmission ring (511) has a first tooth (512) on its inner circumference. There are several toothed rollers (514) arranged in a ring, and the toothed rollers (514) mesh with the first tooth (512) on the inner wall of the transmission ring (511). One of the toothed rollers (514) is also coaxially fixed to the output end of the second motor (513). There are several transmission plates (515), all of which are I-shaped, and the transmission plates (515) have second teeth (516) that mesh with the toothed roller (514), and the transmission plates (515) are driven to move radially along the transmission ring (511) by the toothed roller (514).

6. The bearing assembly fixture according to claim 5, characterized in that, The transmission plate (515) is located above the transmission ring (511), and the toothed roller (514) meshes with both the transmission ring (511) and the transmission plate (515).

7. The bearing assembly fixture according to claim 6, characterized in that, The second fixing part (52) includes: Mounting base (521) is fixed to one end of transmission plate (515). A second sliding groove (522) is added to one side of the mounting base (521) near the edge, and a positioning groove (523) is added near the center. A screw (524) located inside the positioning groove (523) is also rotatably connected to the mounting base (521). The second slide (525) has a second slide rail (527) and a connecting seat (526) on one side that are adapted to the second slide groove (522) and the positioning groove (523). The screw (524) also passes through the connecting seat (526) and is threadedly connected to it. The second slide (525) also has a second pressure plate (528) bolted to the other side.

8. The bearing assembly fixture according to claim 7, characterized in that, The second pressure plate (528) is located above the first pressure plate (423) and is driven to move vertically by a screw (524).

9. The bearing assembly fixture according to claim 8, characterized in that, The bearing positioning unit (5) also includes several positioning frames (53) arranged in a ring around the center of the shelf (3). The positioning frame (53) includes a foot plate (531) bolted to the side of the shelf (3). A support plate (532) is fixed on one side of the foot plate (531). An annular limiting plate (533) is fixed on the other end of the support plate (532). The cross section of the limiting plate (533) is L-shaped. Several annularly distributed positioning ports (534) are also provided on the limiting plate (533).

10. The bearing assembly fixture according to claim 9, characterized in that, The transmission ring (511) rotates inside the limiting plate (533), while the transmission plate (515) passes through the positioning port (534) and is slidably connected to it.

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