A processing and fixing device for a bearing seat

Abstract

A processing and fixing device for a bearing seat, which includes a table, a lifting drive device, and a rotational positioning mechanism. The rotational positioning mechanism includes a connecting seat, a positioning link, and a spring. The positioning link includes a link body, a mounting block, a rotating pivot, a spring connecting shaft, a straightening block, and a clamping head. The center axis of the rotating pivot is spaced apart from the center axis of the positioning hole. The positioning link is rotatably mounted on the connecting seat via the rotating pivot. When the cylinder drives the positioning link to move downward, the straightening block slides out of the positioning hole during the downward movement, and at the same time, the two positioning links are stretched outward under the action of the spring force, and rotated and tilted to form an "outward eight" shape, so that the step can abut against the positioning edge of the bearing seat to fix the bearing seat on the bearing seat positioning platform.

Description

Technical Field

[0001] The present invention relates to the field of bearing seat processing, and in particular to a processing and fixing device for a bearing seat. Background Art

[0002] The bearing seat is a special component used to support and position bearings in mechanical equipment. It is usually composed of a bearing seat body and a through hole provided on the bearing seat body for setting the bearing. The bearing seat plays a vital role in maintaining the normal operation of the bearing. When in use, the bearing seat usually needs to be processed accordingly according to the application scenario to improve its corresponding functionality. For example, the invention patent with patent application number 201310223704.0 provides a gear pump bearing seat structure, which requires the provision of multiple structures such as a sealing ring mounting groove, a driving shaft mounting hole, a driven shaft mounting hole, and a weight reduction groove on the bearing seat body. At the same time, the two ends of the bearing seat need to be processed to form a cross-sectional structure so that it can better fit the mechanical housing.

[0003] When the bearing seat is processed, it needs to be fixed so as to facilitate processing. In the prior art, a clamp with good clamping force is usually used to clamp the side wall of the bearing seat so as to fix the bearing seat.

[0004] However, for compact bearing seats, due to their small size and smooth surface, the fixture is difficult to fix. Furthermore, the fixture easily covers most of the surface area of ​​the bearing seat, making surface machining of the bearing seat difficult. It may even be necessary to change the clamping angle multiple times to process the surface of the bearing seat in turn, which is time-consuming and labor-intensive, and is not conducive to improving production efficiency. Summary of the Invention

[0005] In view of this, the present invention provides a bearing seat processing and fixing device to solve the above problems.

[0006] A bearing seat processing and fixing device comprises a table, a lifting drive device fixedly connected to the table, and a rotary positioning mechanism arranged on one side of the lifting drive device. The lifting drive device is used to drive the rotary positioning mechanism to move up and down. The rotary positioning mechanism comprises a connecting seat fixedly connected to the lifting drive device, two positioning links rotatably connected to the connecting seat, and a spring arranged between the two positioning links. Two positioning holes adapted for the positioning links are provided on the table. The positioning link comprises a connecting rod body, a mounting block arranged at one axial end of the connecting rod body, a rotating pivot arranged on the mounting block, a spring connecting shaft arranged on the connecting rod body, a straightening block arranged on one side of the connecting rod body, and a clamping head arranged at the other axial end of the connecting rod body. The positioning link is rotatably mounted on the connecting seat via the rotating pivot. The straightening block and the spring connecting shaft are separated on both sides of the connecting rod body in the radial direction. The radial dimension of the straightening block along the positioning hole should be such that the central axis of the connecting rod body is parallel to or coincides with the central axis of the positioning hole when the straightening block is inserted into the positioning hole.

[0007] Furthermore, the lifting drive device includes a cylinder and at least two connecting columns fixedly arranged on the cylinder.

[0008] Furthermore, the connecting seat includes a connecting seat body, a cylinder mounting hole arranged on the connecting seat body, and two connecting rod mounting grooves symmetrically arranged on both sides of the cylinder mounting hole.

[0009] Furthermore, the shape of the mounting block is consistent with the shape of the connecting rod mounting groove, and the outer contour length of the mounting block is smaller than the inner contour length of the connecting rod mounting groove.

[0010] Furthermore, the maximum outer diameter of the connecting rod body is smaller than the diameter of the positioning hole.

[0011] Furthermore, the clamping head is arranged at the axial end of the connecting rod body, the maximum diameter of the clamping head is larger than the diameter of the connecting rod body, and the clamping head is eccentrically arranged with the connecting rod body. At the same time, the clamping head is flush with the connecting rod body on the side facing the spring connecting shaft, and forms a step on the side facing the straightening block.

[0012] Furthermore, the step is spaced apart from the straightening block to form a clearance opening, and the distance between the step and the straightening block is greater than the axial depth of the positioning hole.

[0013] Furthermore, the table top includes a table top body, a spring avoidance groove arranged on the table top body, a bearing seat positioning platform arranged on one side of the table top body, and the positioning hole is arranged on the bearing seat positioning platform.

[0014] Furthermore, the two positioning connecting rods are mirror-imaged with the central axis of the cylinder mounting hole as the axis.

[0015] Furthermore, the central axis of the rotating pivot is spaced apart from the central axis of the positioning hole.

[0016] Compared with the prior art, the bearing seat processing and fixing device provided by the present invention includes a table, a lifting drive device fixedly connected to the table, and a rotation positioning mechanism arranged on one side of the lifting drive device. The rotation positioning mechanism includes a connecting seat fixedly connected to the cylinder, two positioning links rotatably connected to the connecting seat, and a spring arranged between the two positioning links. A rotating pivot, a spring connecting shaft, a straightening block, and a clamping head are also provided on the positioning link. The spring is located between the two positioning links, and because the central axis of the rotating pivot is spaced apart from the central axis of the positioning hole, the positioning link will deflect under the action of the spring when it moves up and down in the positioning hole. Specifically, when the cylinder drives the positioning link downward, the straightening block slides out of the positioning hole during the downward movement. Simultaneously, because the diameter of the connecting rod body is smaller than that of the positioning hole, when the two positioning links descend to the clearance opening, they are pushed outward by the spring force and rotated and tilted into an "outward-facing" shape. At this time, the central axis of the connecting rod and the central axis of the positioning hole intersect, allowing the step to abut against the positioning edge of the bearing seat, thereby clamping the bearing seat to the bearing seat positioning platform. Therefore, it can be seen that the machining and fixing device of the bearing seat not only stably fixes the bearing seat, but also fixes the bearing seat only through the side of the bearing seat that contacts the bearing seat positioning platform, thereby not affecting the machining of the end face or side wall of the bearing seat. This avoids covering a large area of ​​the end face or side wall of the bearing seat during clamping and fixing, which can lead to machining difficulties and even require multiple changes in the clamping angle to process the bearing seat surface in turn. This significantly reduces the machining time of the bearing seat and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a bearing seat processing and fixing device provided by the present invention.

[0018] Figure 2 for Figure 1Schematic diagram of the cross-sectional structure of the bearing seat when the bearing seat is fixed by the processing and fixing device of the bearing seat.

[0019] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure of the bearing seat when the processing and fixing device of the bearing seat is released.

[0020] Figure 4 for Figure 1 Schematic diagram of the exploded structure of the processing fixture of the bearing seat.

[0021] Figure 5 for Figure 1 A schematic structural diagram of a connecting seat of a bearing seat processing and fixing device.

[0022] Figure 6 for Figure 1 Schematic diagram of the positioning connecting rod structure of the bearing seat processing and fixing device.

[0023] Figure 7 for Figure 1 A schematic diagram of the cross-sectional structure of a table plate of a bearing seat processing and fixing device.

[0024] Figure 8 for Figure 1 A schematic structural diagram of a bearing seat provided by a processing and fixing device for a bearing seat. DETAILED DESCRIPTION

[0025] The following is a further detailed description of specific embodiments of the present invention. It should be understood that the description of the present invention herein is not intended to limit the scope of protection of the present invention.

[0026] like Figures 1 to 8 As shown, it is a structural schematic diagram of a bearing seat processing and fixing device provided by the present invention. The bearing seat processing and fixing device is used to fix a bearing seat 10 so as to facilitate the processing of the end face of the bearing seat 10. The bearing seat processing and fixing device includes a table 20, a lifting drive device 30 fixedly connected to the table 20, and a rotation positioning mechanism 30 arranged on one side of the lifting drive device 30. It is conceivable that the bearing seat processing and fixing device should also include some other functional components, such as mounting components, assembly components, etc., which are all existing technologies known to those skilled in the art and will not be elaborated here.

[0027] like Figure 8As shown, the bearing seat 10 is in the shape of a figure 8 as a whole and is an important mechanical component for supporting and positioning the bearing. The bearing seat 10 includes a bearing seat body 11, two through holes 12 provided on the bearing seat body 11, and a positioning edge 13 provided at one end of the through hole 12. The bearing seat body 11 can be made of different materials such as aluminum alloy, cast steel, cast iron, etc. according to the use environment of the bearing 10. The through hole 12 is used to install and fix the bearing. The positioning edge 13 is provided at one end of the through hole 12 and is used to position the components such as bearings installed in the through hole 12 during use. The bearing seat 10 itself is a prior art known to those skilled in the art and will not be elaborated on here.

[0028] The table 20 includes a table body 21 , a spring avoidance groove 22 arranged on the table body 21 , a bearing seat positioning platform 23 arranged on one side of the table body 21 , and two positioning holes 24 arranged on the bearing seat positioning platform 23 .

[0029] The table body 21 may be a square plate and should be a part of a machine tool, which is used to support and place the bearing seat 10, thereby facilitating the processing of the bearing seat 10.

[0030] The spring relief groove 22 is provided on and extends through the table body 21. The spring relief groove 22 can be elliptical in shape and its dimensions should be compatible with the dimensions of the rotational positioning mechanism 40 to accommodate the spring 43 described below during the extension and retraction of the positioning link 42. The spring relief groove 22 should be sized to provide clearance when the positioning link 42 is extended by the spring 43, thereby facilitating the rotational positioning mechanism 40 in positioning the bearing seat 10.

[0031] The bearing seat positioning platform 23 is fixedly provided on one side of the table body 21 and is used to place the bearing seat 10. The shape and size of the bearing seat positioning platform 23 are adapted to the shape and size of the bearing seat 10, so that a position comparison can be formed when placing the bearing seat 10, thereby quickly adjusting the position of the bearing seat 10, facilitating the rapid positioning of the bearing seat 10, and also facilitating the processing of the outer wall of the bearing seat 10.

[0032] The diameter of the positioning hole 24 matches the size of the positioning link 42 of the rotation positioning mechanism 40 and is connected to the spring avoidance groove 22, thereby facilitating the positioning link 42 of the rotation positioning mechanism 40 to pass through the spring avoidance groove 22, then extend from the positioning hole 24 and be inserted into the bearing seat 10 to clamp and position the bearing seat 10. Preferably, the positioning hole 24 is rounded at one end facing the rotation positioning mechanism 40 to form a guide, thereby facilitating the positioning link 42 of the rotation positioning mechanism 40 to enter and exit the positioning hole 24.

[0033] The lifting drive device 30 is used to drive the rotary positioning mechanism 40 to reciprocate and extend, and includes a cylinder 31 and at least two connecting columns 32 fixedly provided on the cylinder 31 .

[0034] The cylinder 31 is fixedly connected to the side of the table body 21 opposite to the bearing seat positioning platform 23 via the connecting column 32. The output shaft of the cylinder 31 is fixedly connected to the rotation positioning mechanism 40, thereby driving the rotation positioning mechanism 40 to slide up and down along the axial direction of the connecting column 32.

[0035] The connecting posts 32 are symmetrically arranged on both sides of the cylinder 31, with one end fixedly connected to the cylinder 31 and the other end fixedly connected to the table 20, thereby fixing the cylinder 22 to the table 20. In this embodiment, four connecting posts 32 are provided, and the four connecting posts 32 are symmetrically arranged on both sides of the cylinder 31 to ensure the stability of the cylinder 31 during operation.

[0036] The rotation positioning mechanism 40 includes a connection base 41 fixedly connected to the cylinder 31 , two positioning links 42 rotatably disposed on the connection base 41 , and a spring 43 disposed between the two positioning links 42 .

[0037] like Figure 5 As shown, the connecting seat 41 includes a connecting seat body 411 , a cylinder mounting hole 412 provided on the connecting seat body 411 , and two connecting rod mounting grooves 413 symmetrically provided on both sides of the cylinder mounting hole 412 .

[0038] The connecting seat body 411 may be a rectangular parallelepiped structure, and the side thereof facing the cylinder 31 is fixedly connected to the cylinder 31 through the cylinder mounting hole 412 , thereby being driven by the cylinder 31 to move up and down.

[0039] The cylinder mounting hole 412 is adapted to fit the output shaft of the cylinder 31 and is centrally located on the connector body 411, thereby ensuring balanced force and stable movement of the connector body 411. Once the output shaft of the cylinder 31 is inserted into the cylinder mounting hole 412, it can be secured with a bolt (not shown).

[0040] Two connecting rod mounting slots 413 are symmetrically positioned on either side of the cylinder mounting hole 412 and are used to mount the positioning connecting rod 42. The specific connection method will be described below in conjunction with the positioning connecting rod 42. The structure of the connecting rod mounting slots 413 matches that of the positioning connecting rod 42, facilitating its installation on the connecting base 41. To enable rotation of the positioning connecting rod 42, the connecting rod mounting slots 413 are rectangular, providing ample space for rotation.

[0041] There are two positioning links 42, and the structures of the two positioning links 42 are exactly the same. In the arrangement direction of the two positioning links 42, the two positioning links 42 are mirror-imaged with the central axis of the cylinder mounting hole 412 as the axis. Figure 3 As shown. The following takes a positioning link 42 as an example to illustrate its structure. Figure 6 As shown, the positioning link 42 includes a link body 421, a mounting block 422 arranged at one axial end of the link body 421, a rotating pivot 423 arranged on the mounting block 422, a spring connecting shaft 424 arranged on the link body 421, a straightening block 425 arranged on one side of the link body 421, and a clamping head 426 arranged at the other axial end of the link body 421.

[0042] The connecting rod body 421 is a column, one end of which is movably connected to the connecting seat 41 via the mounting block 422, and the other end of which is inserted into the positioning hole 24 of the platen 20. The cross-section of the connecting rod body 421 can be circular or elliptical. The maximum outer diameter of the connecting rod body 421 is smaller than the diameter of the positioning hole 24, so that the connecting rod body 421 can move radially or axially within the positioning hole 24.

[0043] The shape of the mounting block 422 can be consistent with the shape of the connecting rod mounting groove 413, and the outer contour length of the mounting block 422 is smaller than the inner contour length of the connecting rod mounting groove 413, so that a gap is formed between the two ends of the mounting block 422 and the connecting seat body 411, so that the mounting block 422 can rotate in the connecting rod mounting groove 413. The positioning link 42 is mounted in the connecting rod mounting groove 413 through the rotating pivot 423, so that the mounting block 422 can rotate. Due to the existence of this gap, when the positioning link 42 moves downward, it can be stretched and rotated to both sides under the action of the elastic force of the spring 43, thereby clamping and positioning the bearing seat 10. The size of the gap between the two ends of the mounting block 422 and the connecting seat body 411 can be set according to the rotation amplitude of the positioning link 42.

[0044] The pivot shaft 423 is perpendicular to the plane of the rotation direction of the positioning link 42 and is disposed on both sides of the mounting block 422. It may be a cylindrical structure, thereby facilitating the rotatable mounting of the positioning link 42 within the link mounting slot 413. The central axis of the pivot shaft 423 is spaced apart from the central axis of the positioning hole 24, thereby allowing the positioning link 42 to deflect under the action of the spring 43 as it moves up and down within the positioning hole 24. Simultaneously, as long as the mounting block 422 deflects a relatively small angle, the link body 421 can deflect a relatively large angle, thereby reducing the volume of the mounting block 422 and, consequently, the entire fixing device. It is conceivable that, if not limited by volume, the central axis of the pivot shaft 423 can intersect with the central axis of the positioning hole 24.

[0045] The spring connecting shaft 424 is disposed on the opposite side of the two positioning links 42 and is located on the side of the link body 421 facing away from the straightening block 425. The spring connecting shaft 424 can be a cylindrical structure, which is used to mount and fix the spring 43 between the two positioning links 42.

[0046] The straightening block 425 is disposed on the side of the connecting rod body 421 facing away from the spring connecting shaft 424, that is, the straightening block 425 and the spring connecting shaft 424 are located on opposite sides of the connecting rod body 421 in the radial direction. Because the central axis of the pivot shaft 423 is spaced apart from the central axis of the positioning hole 24, and the diameter of the positioning hole 24 is larger than the diameter of the connecting rod body 421, without the straightening block 425, the connecting rod body 421 would deflect under the action of the spring 43, causing the central axis of the connecting rod body 421 to be non-parallel or non-coincident with the central axis of the positioning hole 24. Therefore, the straightening block 425, when inserted into the positioning hole 24, causes the central axis of the connecting rod body 421 to be parallel or coincident with the central axis of the positioning hole 24, thereby enabling the end of the bearing seat 10 having the positioning edge 13 to be fitted onto the connecting rod body 421. Therefore, the radial dimension of the straightening block 425 along the positioning hole 24 should be such that the central axis of the connecting rod body 421 is parallel to or coincides with the central axis of the positioning hole 24 when the straightening block 425 is inserted into the positioning hole 24. To facilitate insertion and removal of the straightening block 425 from the positioning hole 24, a guide slope is provided on the side of the straightening block 425 facing the clamping head 426.

[0047] The clamping head 426 is disposed at the axial end of the connecting rod body 421. Its maximum diameter is greater than that of the connecting body 421 and it is eccentrically positioned relative to the connecting body 421. The side of the clamping head 426 facing the spring connecting shaft 424 is flush with the connecting body 421, while a step 427 is formed on the side facing the straightening block 425. This step 427 is used to clamp the positioning edge 13 of the bearing seat 10 between the clamping head 426 and the bearing seat positioning platform 23. The maximum diameter of the clamping head 426 is smaller than the diameter of the positioning hole 24, allowing it to pass through the positioning hole 24, facilitating assembly of the fixture. Furthermore, the maximum diameter of the clamping head 426 is smaller than the diameter of the space enclosed by the positioning edge 13, allowing the clamping head 426 to pass through the space enclosed by the positioning edge 13. In the axial direction of the connecting rod body 421 , the step 427 is spaced apart from the straightening block 425 , thereby forming a clearance opening 428 . The minimum spacing between the step 427 and the straightening block 425 is greater than the axial depth of the positioning hole 24 .

[0048] The two ends of the spring 43 are respectively fixedly mounted on the spring connecting shaft 424 and are used to provide elastic force to spread the two positioning links 42 outward and rotate and tilt. The size of the spring 43 can be selected according to the distance between the link bodies 42 and the elastic force requirements.

[0049] When the positioning link 42 is in an unclamped state, the straightening block 425 is inserted into and extends out of the positioning hole 24. At this time, the center axis of the connecting rod body 421 is parallel to or coincides with the center axis of the positioning hole 24 to form a vertical state. The bearing seat 10 is then placed on the positioning link 42, and the clamping head 426 passes through the space surrounded by the positioning edge 13. After adjusting the position of the bearing seat 10, the cylinder 31 drives the positioning link 42 to move downward. During the downward movement, the straightening block 425 slides out of the positioning hole 24 until the clamping head 426 abuts against the positioning edge 13. Since the diameter of the connecting rod body 421 is smaller than the diameter of the positioning hole 24, when the two positioning links 42 move down to the clearance opening 428, they will be stretched outward under the action of the elastic force of the spring 43, and rotate and tilt to form an "outward eight" shape, as shown in FIG. Figure 2 As shown. At this time, the center axis of the connecting rod 42 and the center axis of the positioning hole 24 are in a cross relationship, and the angle between them can be between 10-15 degrees, so that the step 427 can abut against the positioning edge 13 of the bearing seat 10 to fix the bearing seat 10 on the bearing seat positioning platform 23. After the end face or side wall processing of the bearing seat 10 is completed, the cylinder 31 drives the positioning connecting rod 42 to move up again. The spring 43 is compressed during the upward movement of the two positioning connecting rods 42, and the straightening block 425 is inserted into the positioning hole 24 again, so that the two positioning connecting rods 42 are restored from the inclined outward eight state to the parallel state, that is, the connecting rod body 421 is parallel to or coincides with the center axis of the positioning hole 24 again. At this time, the position of the clamping head 426 is the same as the unclamped position, as shown Figure 3 As shown, the step 427 is separated from the bearing seat 10, thereby facilitating the removal of the bearing seat 10.

[0050] Compared with the prior art, the processing and fixing device for the bearing seat provided by the present invention includes a table 20, a lifting drive device 30 fixedly connected to the table 20, and a rotation positioning mechanism 40 arranged on one side of the lifting drive device 30. The rotation positioning mechanism 40 includes a connecting seat 41 fixedly connected to the cylinder 31, two positioning links 42 rotatably connected to the connecting seat 41, and a spring 43 arranged between the two positioning links 42. A rotating pivot 423, a spring connecting shaft 424, a straightening block 425, and a clamping head 426 are provided on the positioning link 42. The spring 43 is located between the two positioning links 42, and because the central axis of the rotating pivot 423 is spaced apart from the central axis of the positioning hole 24, the positioning link 42 will deflect under the action of the spring 43 when it moves up and down in the positioning hole 24. Specifically, when the cylinder 31 drives the positioning link 42 to move downward, the straightening block 425 slides out of the positioning hole 24 during the downward movement. At the same time, since the diameter of the link body 421 is smaller than the diameter of the positioning hole 24, when the two positioning links 42 move downward to the clearance opening 428, they will be pushed outward under the elastic force of the spring 43 and rotated and tilted to form an "outward eight" shape. At this time, the central axis of the link 42 and the central axis of the positioning hole 24 are in a cross relationship, so that the step 427 can abut against the positioning edge 13 of the bearing seat 10 to fix the bearing seat 10 on the bearing seat positioning platform 23. Therefore, it can be seen that the processing and fixing device of the bearing seat can not only stably fix the bearing seat 10, but also fix the bearing seat 10 only through the side of the bearing seat 10 that contacts the bearing seat positioning platform 23, thereby not affecting the processing of the end face or side wall of the bearing seat 10. This avoids covering most of the end face or side wall of the bearing seat 10 during clamping and fixing, which would cause processing difficulties and even require changing the clamping angle multiple times to process the surface of the bearing seat 10 in turn, thereby greatly reducing the processing time of the bearing seat 10 and improving production efficiency.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements or improvements within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A bearing seat processing and fixing device, characterized in that: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. And a clamping head is arranged at the other axial end of the connecting rod body, the positioning connecting rod is rotatably mounted on the connecting seat through the rotating pivot, the straightening block and the spring connecting shaft are separated on both sides of the radial direction of the connecting rod body, and the radial size of the straightening block along the positioning hole is such that the center axis of the connecting rod body is parallel to or coincides with the center axis of the positioning hole when the straightening block is inserted into the positioning hole. The clamping head is arranged at the end of the connecting rod body along the axial direction, the maximum diameter of the clamping head is larger than the diameter of the connecting rod body, and the clamping head is eccentrically arranged with the connecting rod body, and the clamping head is flush with the connecting rod body on the side facing the spring connecting shaft, and forms a step on the side facing the straightening block, and the center axis of the rotating pivot is spaced apart from the center axis of the positioning hole.

2. The bearing seat processing and fixing device according to claim 1, characterized in that: The lifting drive device includes a cylinder and at least two connecting columns fixedly arranged on the cylinder.

3. The bearing seat processing and fixing device according to claim 1, characterized in that: The connecting seat comprises a connecting seat body, a cylinder mounting hole arranged on the connecting seat body, and two connecting rod mounting grooves symmetrically arranged on both sides of the cylinder mounting hole.

4. The bearing seat processing and fixing device according to claim 3, characterized in that: The shape of the mounting block is consistent with the shape of the connecting rod mounting groove, and the outer contour length of the mounting block is smaller than the inner contour length of the connecting rod mounting groove.

5. The bearing seat processing and fixing device according to claim 1, characterized in that: The maximum outer diameter of the connecting rod body is smaller than the diameter of the positioning hole.

6. The bearing seat processing and fixing device according to claim 1, characterized in that: The step and the straightening block are spaced apart to form a clearance opening, and the minimum spacing distance between the step and the straightening block is greater than the axial depth of the positioning hole.

7. The bearing seat processing and fixing device according to claim 1, characterized in that: The table includes a table body, a spring avoidance groove arranged on the table body, a bearing seat positioning platform arranged on one side of the table body, and the positioning hole is arranged on the bearing seat positioning platform.

8. The bearing seat processing and fixing device according to claim 3, characterized in that: The two positioning connecting rods are arranged in a mirror image with the central axis of the cylinder mounting hole as the axis.

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