A positioning jig for bearing bush machining

Abstract

The application relates to the field of automobile part machining, in particular to a positioning jig for bearing bush machining, which comprises a base plate, a fixed positioning piece is fixed on the base plate, a movable positioning piece is slidably connected to the base plate, a first embedding groove is arranged on the fixed positioning piece, a first embedding limiting assembly for embedding a bearing bush is arranged in the first embedding groove, a second embedding groove is arranged on the movable positioning piece, and a first embedding limiting assembly for embedding a bearing bush is arranged in the second embedding groove; a guide driving structure is arranged on the fixed positioning piece and connected with the movable positioning piece; the guide driving structure is used for driving the movable positioning piece to move close to or away from the fixed positioning piece. The application has the effect that the precision of a circular hole formed after two bearing bushes are combined can reach the standard.

Description

A positioning fixture for bearing machining Technical Field

[0001] This application relates to the field of automotive parts processing, and in particular to a positioning fixture for bearing processing. Background Technology

[0002] The bearing shell has a semi-circular hole. The bearing shells are usually connected in pairs. The semi-circular holes on the two connected bearing shells are combined to form a circular hole, which allows the corresponding axle of the car to pass through.

[0003] Currently, when processing bearing bushes, the two bearing bushes in a set are usually separated, and each bearing bush is processed individually.

[0004] In the process of implementing this application, it was found that the above-mentioned technology has at least the following problems: In the actual processing process, it was found that when each bearing is processed individually, the processing accuracy of the semi-circular hole after processing each bearing can meet the standard. However, when two bearings are combined, it is often found that the processing accuracy of the circular hole formed by combining the two semi-circular holes does not meet the standard because the two semi-circular holes do not match. Summary of the Invention

[0005] In order to ensure that the circular hole formed after the two bearing shells are combined meets the required accuracy, this application provides a positioning fixture for bearing shell processing.

[0006] This application provides a positioning fixture for machining bearing bushes, which adopts the following technical solution:

[0007] A positioning fixture for processing bearing bushes includes a base plate, on which a fixed positioning member is fixedly mounted and a movable positioning member is slidably connected. The fixed positioning member has a first embedding groove, in which a first embedding limiting component for embedding into the bearing bush is provided. The movable positioning member has a second embedding groove, in which a first embedding limiting component for embedding into the bearing bush is provided. The fixed positioning member has a guide driving structure, which is connected to the movable positioning member and is used to drive the movable positioning member to move closer to or away from the fixed positioning member.

[0008] By adopting the above technical solution, one bearing shell is embedded in the first embedding groove, and the first embedding component is embedded in the bearing shell, which facilitates the positioning of the bearing shell on the fixed positioning component; the other bearing shell is embedded in the second embedding groove, and the second embedding component is embedded in the bearing shell, which facilitates the positioning of the bearing shell on the movable positioning component; after the initial positioning of the two bearing shells is completed, the control guide drive structure drives the movable positioning component, which was originally far away from the fixed positioning component, to gradually move closer to the fixed positioning component until the two bearing shells abut and combine to form a standard circular hole; then the two bearing shells are positioned by controlling the movable positioning component to be in a positioning state. On this basis, the two bearing shells that have been combined to form a standard circular hole are then processed, which facilitates the accuracy of the circular hole formed by the combination of the two bearing shells to meet the standard.

[0009] In one specific implementation, the guide drive structure includes a first drive member connected to the substrate, the first drive member being connected to a threaded rod rotatably connected to the fixed positioning member, the threaded rod being threadedly connected to the movable positioning member.

[0010] By adopting the above technical solution, controlling the first driving component to drive the threaded rod can move the moving positioning component closer to or away from the fixed positioning component, thus facilitating flexible control of the position of the moving positioning component.

[0011] In one specific implementation, the fixed positioning member is connected to a guide rod, and the movable positioning member is provided with a first sliding member that is slidably connected to the guide rod; the fixed positioning member has a limiting groove, and the movable positioning member is provided with a limiting member for embedding in the limiting groove.

[0012] By adopting the above technical solution, the guide rod facilitates the cooperation with the threaded rod to further improve the stability of the moving positioning component during movement. Furthermore, when the moving positioning component approaches the fixed positioning component, the limiting component is embedded in the corresponding limiting groove, which prevents the moving positioning component from displacing relative to the fixed positioning component when it stops moving, thereby improving the stability of the moving positioning component when it stops moving.

[0013] In one specific implementation, the guide drive structure includes a spring disposed in the limiting groove, the spring being connected to a first pressure sensor; the first pressure sensor is communicatively connected to a processor, the processor being electrically connected to the first drive component.

[0014] By adopting the above technical solution, when the limiting member extends into the corresponding limiting groove and abuts against the first pressure sensor, the spring will be compressed first, thereby buffering the contact process between the limiting member and the first pressure sensor. During the contact process, the first pressure sensor detects the first pressure data and transmits the first pressure data to the processor. Then the processor determines whether the first pressure data reaches the preset first pressure threshold. When it does, it means that the two bearings are already in a tight contact state. Then the processor immediately controls the first drive component to stop. This facilitates the effect of stopping the moving positioning member when it approaches the fixed positioning member.

[0015] In one specific implementation, the movable positioning component has a countersunk hole through which the threaded rod passes, and the end of the threaded rod extending into the countersunk hole is provided with an abutment plate. The abutment plate is provided with a second pressure sensor for abutting against the movable positioning component. The second pressure sensor is communicatively connected to a processor, and the processor is electrically connected to the first drive component.

[0016] By adopting the above technical solution, during the process of controlling the moving positioning component to move away from the fixed positioning component, when the moving positioning component moves to the preset position, the abutment plate and the wall of the countersunk hole abut against the second pressure sensor. The second pressure sensor detects the corresponding second pressure data and transmits the second pressure data to the processor. Then the processor determines whether the second pressure data reaches the preset second pressure threshold. When it does, it means that the moving positioning component has moved into place. This facilitates the effect of stopping when the moving positioning component moves away from the fixed positioning component.

[0017] In one specific implementation, a groove is formed on the substrate, and a plurality of crossbars are provided in the groove. A second sliding member is slidably connected to each crossbar, and a first magnetic suction plate is connected to the plurality of second sliding members. The first magnetic suction plate is used to support and magnetically attract the bearing.

[0018] By adopting the above technical solution, the first magnetic plate can easily support the bearing in the movable positioning component and magnetically attract it. When the movable positioning component moves the bearing, the first magnetic plate can move along the horizontal plate with the bearing while still supporting the bearing. This helps to prevent the bearing in the movable positioning component from rubbing against the base plate, thereby preventing wear of the bearing in the movable positioning component during the movement.

[0019] In one specific implementation, the substrate is further provided with a receiving groove located below the first embedding groove, and a second magnetic suction plate is provided in the receiving groove.

[0020] By adopting the above technical solution, the second magnetic plate facilitates the bearing and magnetic positioning of the bearing in the direction perpendicular to the substrate.

[0021] In one specific implementation, the substrate is provided with a first strip-shaped guide groove, a guide wheel is provided in the strip-shaped guide groove, and the movable positioning member is provided with a second strip-shaped guide groove for the guide wheel to be embedded in.

[0022] By adopting the above technical solution, the guide wheel extends into the second guide groove, which not only plays a supporting role in the movement of the moving positioning component to prevent damage caused by friction between the moving positioning component and the substrate, but also plays a guiding role in the movement process of the moving positioning component, thereby further improving the stability of the moving positioning component during movement.

[0023] In one specific implementation, one end of the substrate is rotatably connected to an intermediate plate, and an extension member hinged to the substrate is connected to the intermediate plate; the intermediate plate is connected to a rotating column, and the rotating column is rotatably connected to a base plate; a toothed ring is provided on the rotating column; a second driving member is provided on the base plate; and a gear meshing with the toothed ring is connected to the second driving member.

[0024] By adopting the above technical solution, it is easy to adjust the angle of the two positioned bearings in the vertical and horizontal directions, thereby improving the convenience of processing the bearings.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. To ensure that the precision of the circular hole formed after the two bearing bushes are combined meets the required standards;

[0027] 2. Facilitates the stopping effect as the moving positioning component approaches or moves away from the fixed positioning component;

[0028] 3. It helps prevent wear on the moving positioning parts and the bearings within them during movement. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the overall structure of a positioning fixture for bearing processing in an embodiment of this application.

[0030] Figure 2 is an exploded view of the positional relationship between the fixed positioning component, the first bearing, the movable positioning component, and the second bearing in an embodiment of this application.

[0031] Figure 3 is a cross-sectional view of the guide drive structure in an embodiment of this application.

[0032] Figure 4 is a cross-sectional view in an embodiment of this application illustrating the connection between the spring and the first pressure sensor.

[0033] Figure 5 is a schematic diagram of the structure used to illustrate the distribution of the plate and slot group in an embodiment of this application.

[0034] Figure 6 is a structural schematic diagram in an embodiment of this application, illustrating the connection relationship between the guide wheel and the movable positioning component.

[0035] Figure 7 is a cross-sectional view in an embodiment of this application illustrating the connection relationship between the substrate and the angle adjustment structure.

[0036] Explanation of reference numerals in the attached drawings: 1. Substrate; 11. Plate groove assembly; 111. Receiving groove; 112. Plate groove; 113. First strip guide groove; 2. Fixing and positioning assembly; 21. Fixing and positioning component; 211. First embedding groove; 212. First through hole; 213. Limiting groove; 22. First embedding limiting assembly; 221. First limiting strip; 222. Second limiting strip; 3. First bearing; 31. First vertical groove; 32. Second vertical groove; 4. Moving and positioning assembly; 41. Moving and positioning component; 411. Second embedding groove; 412. Countersunk hole; 413. Second through hole; 414. Second strip guide groove; 42. Second embedding limiting assembly; 421. Third limiting strip; 422. Fourth limiting strip; 5. 51. Second bearing; 52. Third vertical groove; 53. Fourth vertical groove; 6. Guide drive structure; 64. First bearing; 65. First drive component; 66. Threaded rod; 67. Guide rod; 68. First sliding component; 69. Limiting component; 60. Spring; 610. First pressure sensor; 611. Processor; 62. Abutment plate; 63. Second pressure sensor; 64. Guide wheel; 75. Support positioning assembly; 76. Second magnetic suction plate; 77. Crossbar; 88. Second sliding component; 89. First magnetic suction plate; 80. Angle adjustment structure; 81. Middle plate; 811. Through groove; 82. Telescopic component; 83. Rotating column; 84. Base plate; 85. Gear ring; 86. Second drive component; 87. Gear. Detailed Implementation

[0037] The present application will be further described in detail below with reference to Figures 1-7.

[0038] This application discloses a positioning fixture for bearing processing. Referring to FIG1, the positioning fixture for bearing processing includes a base plate 1. A fixed positioning component 2 is fixed to one end of the top wall of the base plate 1. The fixed positioning component 2 is used to fix and limit the first bearing 3 in a set of bearings. A movable positioning component 4 is fixed to the other end of the top wall of the base plate 1. The movable positioning component 4 is used to limit the second bearing 5 in a set of bearings. A guide drive structure 6 connected to the movable positioning component 4 is provided on the base plate 1 and the fixed positioning component 2. The guide drive structure 6 is used to control the movable positioning component 4 to move closer to or away from the fixed positioning component 2, so that the second bearing 5 moves closer to or away from the first bearing 3. A plate groove group 11 is also provided on the top wall of the base plate 1. The plate groove group 11 is provided with a support positioning component 7 for supporting and positioning the first bearing 3 and the second bearing 5. An angle adjustment structure 8 is connected to the bottom of the base plate 1. The angle adjustment structure 8 is used to adjust the angle of the base plate 1 in the horizontal direction and / or vertical direction, thereby adjusting the angle of the first bearing 3 and the second bearing 5, so as to facilitate subsequent processing of the first bearing 3 and the second bearing 5 at an appropriate angle.

[0039] Referring to Figure 2, the fixed positioning component 2 includes a fixed positioning member 21 fixed to one end of the top wall of the substrate 1. The fixed positioning member 21 has a first embedding groove 211 for the first bearing 3 to be embedded in on the side wall near the moving positioning component 4. A first embedding limiting component 22 is integrally formed on the side wall of the first embedding groove 211. Specifically, the first embedding limiting component 22 includes a first limiting strip 221 integrally formed on one side wall of the first embedding groove 211. The first limiting strip 221 is used to be embedded in a preset first vertical groove 31 on the first bearing 3. The first embedding limiting component 22 also includes a second limiting strip 222 integrally formed on the other side wall of the first embedding groove 211. The second limiting strip 222 is used to be embedded in a preset second vertical groove 32 on the first bearing 3.

[0040] In practice, while the first bearing shell 3 is embedded in the first embedding groove 211, the first limiting strip 221 is also embedded in the first vertical groove 31 on the first bearing shell 3, and the second limiting strip 222 is also embedded in the second vertical groove 32 on the first bearing shell 3, so as to facilitate the positioning of the first bearing shell 3 in the fixed positioning component 2.

[0041] Referring again to Figure 2, the movable positioning component 4 includes a movable positioning member 41 slidably connected to the other end of the top wall of the substrate 1. The movable positioning member 41 has a second embedding groove 411 for embedding the second bearing 5 on its side wall near the fixed positioning component 2. A second embedding limiting component 42 is integrally formed on the side wall of the second embedding groove 411. Specifically, the second embedding limiting component 42 includes a third limiting strip 421 integrally formed on one side wall of the second embedding groove 411. The third limiting strip 421 is used to embed into a preset third vertical groove 51 on the second bearing 5. The second embedding limiting component 42 also includes a fourth limiting strip 422 integrally formed on the other side wall of the second embedding groove 411. The fourth limiting strip 422 is used to embed into a preset fourth vertical groove 52 on the second bearing 5.

[0042] In practice, while the second bearing 5 is embedded in the second embedding groove 411, the third limiting strip 421 is also embedded in the third vertical groove 51 on the second bearing 5, and the fourth limiting strip 422 is also embedded in the fourth vertical groove 52 on the second bearing 5, so as to facilitate the positioning of the second bearing 5 in the moving positioning component 4.

[0043] Referring to Figure 3, one end of the fixed positioning member 21 has a first through hole 212. The guide drive structure 6 includes a first bearing 61 coaxially disposed in the first through hole 212. The base plate 1 has a first drive member 62 fixed on the top wall of one end of the fixed positioning member 21. In this embodiment, the first drive member 62 is preferably a motor. The output shaft of the first drive member 62 is coaxially connected to a threaded rod 63. The threaded rod 63 passes through the first through hole 212 and the first bearing 61, and is coaxially connected to the inner ring of the first bearing 61. The movable positioning member 41 has a countersunk hole 412 coaxial with the first through hole 212. The threaded rod 63 passes through the narrow part of the countersunk hole 412 and is threadedly connected to the wall of the narrow part.

[0044] In the initial state, the fixed positioning member 21 and the movable positioning member 41 are far apart from each other, which makes it easy to embed the first bearing 3 into the fixed positioning member 21 and also makes it easy to embed the second bearing 5 into the movable positioning member 41.

[0045] In practice, after the first bearing shell 3 is embedded into the fixed positioning member 21 and the second bearing shell 5 is embedded into the movable positioning member 41, the first driving member 62 is activated to drive the threaded rod 63 to rotate. While rotating, the threaded rod 63 drives the movable positioning member 41 to move towards the fixed positioning member 21. This makes it easier for the second bearing shell 5 to gradually approach the first bearing shell 3 until it abuts against the first bearing shell 3, so that the first bearing shell 3 and the second bearing shell 5 together form a circular hole.

[0046] In one embodiment, to improve the stability of the moving positioning member 41 during movement, a guide rod 64 is fixed on the end wall of the fixed positioning member 21 at the end away from the threaded rod 63; the moving positioning member 41 is provided with a second through hole 413 coaxial with the guide rod 64, and a first sliding member 65 is coaxially connected in the second through hole 413. In this example, the first sliding member 65 is preferably a linear bearing. The first sliding member 65 is for the guide rod 64 to pass through and is slidably connected to the guide rod 64.

[0047] In practice, when the threaded rod 63 rotates, it drives the movable positioning member 41 to move toward the fixed positioning member 21. During this process, the guide rod 64 guides the movement of the movable positioning member 41, thereby improving the stability of the movable positioning member 41 during movement.

[0048] Referring to Figure 3, the end wall of the fixed positioning member 21 is provided with a limiting groove 213 surrounding the guide rod 64, and the limiting groove 213 is annular; the end wall of the movable positioning member 41 is provided with a limiting member 66 surrounding the second through hole 413 axially, and the limiting member 66 is also annular, for embedding in the limiting groove 213.

[0049] During implementation, when the movable positioning component 41 moves to a state of contact with the fixed positioning component 21, the limiting component 66 is embedded in the limiting groove 213, which facilitates the further connection of the fixed positioning component 21 and the movable positioning component 41 with the guide rod 64. This prevents the movable positioning component 41 from shifting relative to the fixed positioning component 21 after the positioning component contacts the fixed positioning component 21 and stops moving. This further facilitates the improvement of the stability of the movable positioning component 41 when it stops moving with the guide rod 64, and makes it easier to ensure that the accuracy of the circular hole formed after the two bearings are combined meets the standard.

[0050] Referring to Figure 4, in one embodiment, in order to facilitate the contact between the movable positioning member 41 and the fixed positioning member 21, the first driving member 62 can immediately stop driving the movable positioning member 41; a spring 67 is connected to the bottom wall of the limiting groove 213, and a first pressure sensor 68 is connected to the end of the spring 67 away from the bottom wall of the limiting groove 213. The first pressure sensor 68 is used to abut against the limiting member 66, and the first pressure sensor 68 is communicatively connected to a processor 69 disposed on the top wall of the substrate 1.

[0051] In implementation, as the movable positioning component 41 approaches the fixed positioning component 21, the limiting component 66 abuts against the first pressure sensor 68 and extends into the limiting groove 213, thereby gradually compressing the spring 67. The use of the spring 67 can buffer the contact process between the limiting component 66 and the first pressure sensor 68. During the contact process between the limiting component 66 and the first pressure sensor 68, the first pressure sensor 68 detects the corresponding first pressure data and transmits the first pressure data to the processor 69. The processor 69 has a preset first pressure threshold that is exactly when the movable positioning component 41 and the fixed positioning component 21 are in contact. After receiving the first pressure data, the processor 69 also determines whether the first pressure data has reached the first pressure threshold. If so, it means that the movable positioning component 41 and the fixed positioning component 21 are just in contact. At this time, the processor 69 immediately controls the first drive component 62 to stop rotating, thus facilitating the stopping effect when the movable positioning component 41 approaches the fixed positioning component 21.

[0052] After the movable positioning component 41 contacts the fixed positioning component 21, the first bearing shell 3 and the second bearing shell 5 are in contact and together form a standard circular hole. Then the first bearing shell 3 and the second bearing shell 5 are processed. After the processing is completed, the first driving component 62 is controlled to drive the threaded rod 63 to rotate in the opposite direction, so that the movable fixed component gradually moves away from the fixed positioning component 21, which makes it easier to remove the first bearing shell 3 and the second bearing shell 5.

[0053] In order to facilitate timely control of the first drive component 62 to stop rotating after the movable positioning component 41 moves away from the fixed positioning component 21 to the preset position, referring back to Figure 3, the end of the threaded rod 63 that passes through the fine hole is coaxially fixed with an abutment plate 610 located in the coarse hole of the countersunk hole 412. A second pressure sensor 611 is connected to the side wall of the abutment plate 610. The second pressure sensor 611 is used to abut against the bottom wall of the coarse hole.

[0054] In practice, driven by the threaded rod 63, the moving positioning member 41 gradually moves away from the fixed positioning member 21. When the moving positioning member 41 moves away from the fixed positioning member 21 to the preset position, the bottom wall of the abutment plate 610 and the coarse hole portion of the countersunk hole 412 abuts against the second pressure sensor 611. The second pressure sensor 611 detects the corresponding second pressure data and transmits the second pressure data to the processor 69. Then the processor 69 determines whether the second pressure data has reached the preset second pressure threshold. When it has, it means that the moving positioning member 41 has moved into place. This makes it easy to achieve the effect of stopping when the moving positioning member 41 moves away from the fixed positioning member 21.

[0055] Referring to FIG5, the plate groove assembly 11 includes a receiving groove 111 formed on the substrate 1 and located directly below the first bearing 3, and the supporting and positioning assembly 7 includes a second magnetic suction plate 71 fixed in the receiving groove 111, the second magnetic suction plate 71 being used to support the first bearing 3.

[0056] In practice, after the first bearing shell 3 is embedded in the fixing and positioning member 21, the second magnetic suction plate 71 abuts against the bottom wall of the first bearing shell 3 to support the first bearing shell 3. In addition, the second magnetic suction plate 71 also magnetically attracts the first bearing shell 3, which helps to prevent the first bearing shell 3 from detaching from the fixing and positioning member 21 during the processing.

[0057] Referring again to FIG5, the plate groove assembly 11 further includes a plate groove 112 formed on the substrate 1 and located on one side of the receiving groove 111. Two crossbars 72 are provided in the plate groove 112, and the axial direction of the crossbars 72 is parallel to the moving direction of the second bearing 5. A second sliding member 73 is slidably connected to each crossbar 72. In this embodiment, the second sliding member 73 is preferably a linear bearing.

[0058] Referring to Figure 6, the tops of the two second sliding members 73 are connected to a first magnetic plate 74. The first magnetic plate 74 is used to support the second bearing 5 embedded in the movable positioning member 41, and also magnetically attracts the second bearing 5.

[0059] In practice, as the moving positioning member 41 moves closer to or further away from the fixed positioning member 21, the first magnetic suction plate 74 supports the second bearing 5 and moves synchronously with the second bearing 5. This helps to prevent the second bearing 5 from rubbing against the substrate 1 during movement, thereby causing wear between the second bearing 5 and the substrate 1. Furthermore, the first magnetic suction plate 74 can prevent the second bearing 5 from detaching from the moving positioning member 41 during processing by magnetically attracting the second bearing 5.

[0060] The plate groove assembly 11 also includes two first strip-shaped guide grooves 113 formed on the substrate 1. The length direction of the first strip-shaped guide grooves 113 is consistent with the length direction of the plate groove 112, and the first strip-shaped guide grooves 113 are arranged on both sides of the plate groove 112. Each first strip-shaped guide groove 113 is rotatably connected to several evenly distributed guide wheels 612, and the guide wheels 612 protrude slightly upward from the top wall of the substrate 1. The movable positioning member 41 is located on the bottom wall above each first strip-shaped guide groove 113 and has a corresponding second strip-shaped guide groove 414. The second strip-shaped guide groove 414 is used for the guide wheels 612 in the corresponding first strip-shaped guide groove 113 to extend into.

[0061] In practice, during the movement of the movable positioning component 41, the guide wheel 612 not only guides the movable positioning component 41, thereby improving the stability of the movable positioning component 41 during movement, but also supports the movable positioning component 41, thereby preventing the movable positioning component 41 from rubbing against the substrate 1 and causing wear on both.

[0062] Referring to Figure 7, the angle adjustment structure 8 includes an intermediate plate 81 rotatably connected to one end of the substrate 1. A through groove 811 is provided on the top wall of the intermediate plate 81, and a telescopic member 82 is hinged to the bottom wall of the through groove 811. In this embodiment, the telescopic member 82 is preferably an electric telescopic rod. The telescopic end of the telescopic member 82 is hinged to the bottom wall of the substrate 1. A rotating column 83 is fixed to the bottom wall of the intermediate plate 81. The rotating column 83 is arranged in a vertical direction, and a base plate 84 is rotatably connected to the bottom wall of the rotating column 83. A gear ring 85 is coaxially fixed to the side wall of the rotating column 83, and a second driving member 86 is fixed to the top wall of the base plate 84. In this example, the second driving member 86 is preferably a motor, and a gear 87 that meshes with the gear ring 85 is coaxially connected to the output shaft of the second driving member 86.

[0063] In practice, when it is necessary to adjust the angle of a set of first bearings 3 and second bearings 5 ​​positioned in the horizontal direction, the intermediate plate 81 can be driven by the second drive member 86 to rotate the base plate 1 in the horizontal direction, thereby adjusting the angle of the first bearings 3 and second bearings 5 ​​in the horizontal direction.

[0064] When it is necessary to adjust the angle of a set of first bearing 3 and second bearing 5 positioned in the vertical direction, the angle of the substrate 1 in the vertical direction can be adjusted by controlling the extension stroke of the telescopic member 82, thereby realizing the adjustment of the angle of the first bearing 3 and the second bearing 5 in the vertical direction.

[0065] When it is necessary to adjust the angles of the first bearing 3 and the second bearing 5 simultaneously in both the horizontal and vertical directions, the above two angle adjustment methods can be combined to achieve simultaneous adjustment of the angles of the first bearing 3 and the second bearing 5 in both the horizontal and vertical directions.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A positioning fixture for machining bearing bushes, characterized in that: The system includes a base plate (1), on which a fixed positioning member (21) is fixed and a movable positioning member (41) is slidably connected. The fixed positioning member (21) is used to fix a first bearing shell (3), and the movable positioning member (41) is used to fix a second bearing shell (5). The fixed positioning member (21) has a first embedding groove (211) with a first embedding limiting component (22) for embedding into the bearing shell. The movable positioning member (41) has a second embedding groove (411) with a second embedding limiting component (42) for embedding into the bearing shell. The fixed positioning member (21) has a guide driving structure (6) connected to the movable positioning member (41). The guide drive structure (6) is used to drive the movable positioning member (41) to move closer to or away from the fixed positioning member (21); the guide drive structure (6) includes a first drive member (62) connected to the substrate (1), the first drive member (62) is connected to a threaded rod (63) rotatably connected to the fixed positioning member (21), the threaded rod (63) is threadedly connected to the movable positioning member (41); a guide rod (64) is connected to the fixed positioning member (21), and a first sliding member (65) is provided on the movable positioning member (41) slidably connected to the guide rod (64); a limiting groove (213) is provided on the fixed positioning member (21), and a limiting member (66) is provided on the movable positioning member (41) for embedding in the limiting groove (213).

2. The positioning fixture for bearing machining according to claim 1, characterized in that: The guide drive structure (6) includes a spring (67) disposed in the limiting groove (213), the spring (67) being connected to a first pressure sensor (68); the first pressure sensor (68) being communicatively connected to a processor (69), the processor (69) being electrically connected to the first drive component (62).

3. The positioning fixture for bearing machining according to claim 1, characterized in that: The movable positioning component (41) has a countersunk hole (412) through which the threaded rod (63) passes. The end of the threaded rod (63) that extends into the countersunk hole (412) is provided with an abutment plate (610). The abutment plate (610) is provided with a second pressure sensor (611) for abutting against the movable positioning component (41). The second pressure sensor (611) is communicatively connected to a processor (69). The processor (69) is electrically connected to the first drive component (62).

4. The positioning fixture for bearing machining according to claim 1, characterized in that: The substrate (1) has a plate groove (112) and a plurality of crossbars (72) are provided in the plate groove (112). A second sliding member (73) is slidably connected to each of the crossbars (72). A first magnetic suction plate (74) is connected to the plurality of second sliding members (73). The first magnetic suction plate (74) is used to support and magnetically attract the bearing.

5. The positioning fixture for bearing machining according to claim 4, characterized in that: The substrate (1) is also provided with a receiving groove (111) located below the first embedding groove (211), and a second magnetic suction plate (71) is provided in the receiving groove (111).

6. The positioning fixture for bearing machining according to claim 1, characterized in that: The substrate (1) is provided with a first strip guide groove (113), and a guide wheel (612) is provided in the strip guide groove. The movable positioning member (41) is provided with a second strip guide groove (414) for the guide wheel (612) to be embedded.

7. The positioning fixture for bearing machining according to claim 1, characterized in that: One end of the substrate (1) is rotatably connected to an intermediate plate (81), and an extension member (82) hinged to the substrate (1) is connected to the intermediate plate (81); a rotating column (83) is connected to the intermediate plate (81), and a base plate (84) is rotatably connected to the rotating column (83); a toothed ring (85) is provided on the rotating column (83), and a second driving member (86) is provided on the base plate (84); a gear (87) meshing with the toothed ring (85) is connected to the second driving member (86).

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