An assembly machine for processing automobile wheel hub bearings
By designing an assembly machine for automobile hub bearing processing, ball discharge is achieved by linking the wedge block and the core rod, and the pressure plate abutting the outer ring through the linkage between the core rod and the slide rod, the problem of insufficient coordination between the actuator and high cost in the "combining" process of the existing assembly machine is solved, and an efficient and low-cost assembly process is achieved.
Patent Information
- Application Number
- CN202510015197.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-04-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the "combining" process of existing automobile hub bearing assembly machines, the inner and outer ring loading, ball loading, inner ring placement and ball inserting require coordinated control by multiple actuators, resulting in high costs and inconvenient maintenance.
An assembly machine for automobile hub bearing processing is designed, through the linkage between the wedge block and the core rod, the sequential discharge of the balls is realized; at the same time, through the lifting of the core rod and the downward pressure of the slide rod, the pressure plate is driven to abut the outer ring of the hub bearing; and through the linkage between the slide rod and the fork, the inner ring is placed close to the inner ring and the quantitative filling of the balls is realized.
The synchronous supply of inner and outer ring feeding and ball cutting is achieved, reducing the use of power components, reducing costs, and improving the linkage performance and applicability of the assembly machine.
Smart Images

Figure CN119772582A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of bearing assembly, in particular to an assembly machine for processing automobile wheel hub bearings. Background Art
[0002] After production and processing, automobile wheel hub bearings need to be assembled with balls inside to complete the assembly. In the bearing industry, the process of placing the steel balls between the inner and outer rings is called "fitting". Specifically, the "fitting" process is divided into four parts: preparing the inner and outer rings and placing the inner ring aside, putting in the balls, using a ball separator with small claws to evenly separate the steel balls, placing the cage, and riveting the two cages together.
[0003] In the prior art "fitting" process, the loading of inner and outer rings, the unloading of balls, the placement of the inner ring close to the inner wall of the outer ring and the insertion of balls all require different actuators for action control. The different actuators do not cooperate closely enough, which leads to high costs due to the excessive number of power components required, and inconvenience in maintenance due to the complex structure.
[0004] Therefore, in view of this, the existing structure is not enough to be studied and improved, and an assembly machine for automobile wheel hub bearing processing is proposed. Summary of the invention
[0005] The object of the present invention is to provide an assembly machine for processing automobile wheel hub bearings to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: an assembly machine for processing automobile wheel hub bearings, comprising a ball discharging assembly, the ball discharging assembly comprising a fixed sleeve, a material holding cavity, an outer sleeve, a discharge tube, a core rod, a movable sleeve, a discharge channel, a ramp 1, a double-headed sliding pin, an abutment wheel and a spring, a material holding cavity with a top opening is provided inside the fixed sleeve, and an outer sleeve is fixed with an outer sleeve by a flat screw at the bottom of the fixed sleeve, and the middle part of the side end of the outer sleeve is connected with the discharge tube, a core rod is slidably installed inside the middle hole of the outer sleeve, and a movable sleeve is fixedly connected to the top of the core rod, a discharge channel is axially provided inside the core rod, and the top of the discharge channel is connected with the bottom end of the movable sleeve, and an opening is provided on the side surface of the bottom end of the discharge channel that passes through the side wall of the core rod, an ramp 1 is radially penetrated through the bottom end of the core rod, and a double-headed sliding pin is radially slidably installed inside the ramp 1, an abutment wheel is rotatably installed on the bottom end of the core rod, and the bottom side of the core rod is elastically connected to the outer edge of the outer sleeve by a spring.
[0007] Furthermore, a connecting frame is fixedly mounted on the side end of the bottom of the fixing sleeve, and one end of the connecting frame facing away from the fixing sleeve is fixed to the side end of the assembly platform.
[0008] Furthermore, a loading plate is fixed on the side of the assembly table, and a slide groove is opened in the middle of the assembly table.
[0009] Furthermore, a cylinder mounting plate is fixed to one end surface of the assembly platform, and a push cylinder is fixed to the outer side of the cylinder mounting plate by bolts.
[0010] Furthermore, a wedge block is fixedly connected to the output end of the pushing cylinder, and the wedge block is slidably matched with the slide groove, and the top slope of the wedge block is abutted against the outer edge of the abutment wheel.
[0011] Furthermore, a bracket is fixed to the end face of the other side of the assembly table, and a driven pressing assembly is slidably installed on the top of the recess of the bracket. The driven pressing assembly includes a sliding rod, a pressure plate and a lever. The sliding rod is slidably installed on the top of the recess of the bracket, and a pressure plate is inserted and fixed on the bottom end of the sliding rod, and the pressure plate is abutted against the outer ring of the wheel hub bearing, and the side end of the sliding rod is fixedly connected to the lever.
[0012] Furthermore, the driven pressing assembly also includes a second bevel, an end and a return spring. The bottom end of the sliding rod is radially penetrated by a second bevel, and the second bevel is abutted against the other end of the double-headed sliding pin away from the first bevel. The top end of the sliding rod is fixedly installed with an end, and the top end of the sliding rod is covered with a return spring, and the diameter of the return spring is larger than the diameter of the through hole at the top end of the bracket recess.
[0013] Furthermore, a linkage side-pull assembly is fixed on the side of the bracket recess, and the linkage side-pull assembly includes a fixing pin, a swing arm and a shift fork. The fixing pin is fixed to the side of the bracket recess, and the swing arm is rotatably installed inside the fixing pin. The end of the opposite surface of the swing arm is fixedly connected to the shift fork, and the shift fork is snap-fitted with the inner ring of the wheel hub bearing.
[0014] Furthermore, the linkage side-pull assembly also includes a connecting rod, the middle end of the opposite surface of the swing arm is fixedly connected with the connecting rod, and the middle part of the connecting rod is abutted and matched with the outer edge of the shifting rod.
[0015] Furthermore, the linkage side-pull assembly also includes a tension spring and a connecting pin. The connecting rod is externally connected to the tension spring, and one end of the tension spring facing away from the connecting rod is hooked to the connecting pin.
[0016] The present invention provides an assembly machine for automobile wheel hub bearing processing, which has the following beneficial effects:
[0017] 1. In the process of using the present invention, when the wedge block moves forward, the top slope of the wedge block applies pressure to the outer edge of the abutment wheel at the bottom end of the core rod, so that the core rod is lifted from the inside of the hole in the outer sleeve. On the one hand, the movable sleeve fixedly connected to the top end of the core rod receives the balls filled in the fixed sleeve. On the other hand, with the lifting of the core rod, the bottom end opening of the discharge channel corresponds to the discharge pipe at the side end of the outer sleeve, and a discharge channel for sequential discharge of the balls is established. The present application links the forward movement of the wedge block with the sequential discharge of the balls, and realizes the synchronous supply of the balls while realizing the push-loading of the inner and outer rings. There is no need to add an additional power component for the discharge of the balls, and the applicability is strong.
[0018] 2. During the use of the present invention, while the core rod is lifted to realize the ball discharge, the inclined surface 1 radially opened at the bottom end of the core rod synchronously squeezes one end of the double-headed sliding pin, so that the double-headed sliding pin slides away from one side of the core rod, and then the other end of the double-headed sliding pin squeezes the inclined surface 2 at the bottom end of the sliding rod, so that the sliding rod is located at the bottom end of the recess of the bracket and moves downward, and the abutment with the outer ring of the wheel hub bearing is realized through the pressure plate fixed to the bottom end of the sliding rod. The present application links the lifting process of the core rod with the downward pressing stroke of the sliding rod, and drives the pressure plate to abut the outer ring of the wheel hub bearing while realizing the ball discharge, thereby improving the linkage performance of the present application and having strong applicability.
[0019] 3. During the use of the present invention, the application links the abutment of the pressure plate on the outer ring with the shifting of the inner ring by the shift fork, and at the same time, the inner ring is placed close to its inner wall through the shift fork while the abutment limit of the outer ring of the hub bearing is achieved, and the quantitative filling is completed accompanied by the sequential discharge of balls from the discharge pipe, so that the inner and outer ring loading, ball discharge, inner ring placement close to the inner wall of the outer ring and ball placement processes in the "fitting" process are all executed sequentially by a push cylinder, and the different actuators are precisely coordinated and highly linked, which is conducive to the refined control of production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device of the present invention;
[0021] Figure 2 It is a schematic diagram of the overall planar structure of the device of the present invention;
[0022] Figure 3 This is a schematic diagram of the external structure of the ball discharging assembly of the present invention;
[0023] Figure 4 This is a schematic diagram of the internal structure of the ball discharging assembly of the present invention;
[0024] Figure 5 This is a schematic diagram of the support structure of the present invention;
[0025] Figure 6 It is a schematic diagram of the structure of the driven pressing assembly of the present invention;
[0026] Figure 7 It is a schematic diagram of the structure of the linkage side-pull component of the present invention.
[0027] In the figure: 1. ball discharging assembly; 101. fixed sleeve; 102. material holding chamber; 103. outer sleeve; 104. material discharging pipe; 105. core rod; 106. movable sleeve; 107. material discharging channel; 108. inclined plane 1; 109. double-headed sliding pin; 110. contact wheel; 111. spring; 2. connecting frame; 3. assembly table; 4. feeding plate; 5. slideway; 6. cylinder mounting plate; 7. push Air supply cylinder; 8. wedge block; 9. bracket; 10. driven pressing assembly; 1001. sliding rod; 1002. pressure plate; 1003. shift rod; 1004. inclined plane 2; 1005. end; 1006. return spring; 11. linkage side assembly; 1101. fixing pin; 1102. swing arm; 1103. shift fork; 1104. connecting rod; 1105. tension spring; 1106. connecting pin. DETAILED DESCRIPTION
[0028] The following embodiments of the present invention are further described in detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0029] See also Figures 1 to 4 The present invention provides a technical solution: an assembly machine for processing automobile wheel hub bearings, comprising a ball discharging assembly 1, the ball discharging assembly 1 comprising a fixed sleeve 101, a material holding cavity 102, an outer sleeve 103, a material discharge pipe 104, a core rod 105, a movable sleeve 106, a material discharge channel 107, an inclined surface 108, a double-headed sliding pin 109, an abutment wheel 110 and a spring 111, a material holding cavity 102 with a top opening is provided inside the fixed sleeve 101, and the outer sleeve 103 is fixed by a flat screw at the bottom of the fixed sleeve 101, and the middle part of the side end of the outer sleeve 103 is connected with the material discharge pipe 104, a core rod 105 is slidably installed inside the middle hole of the outer sleeve 103, and the top of the core rod 105 is fixedly connected with the movable sleeve 106, a material discharge channel 107 is axially provided inside the core rod 105, and the top of the material discharge channel 107 is connected with the bottom end of the movable sleeve 106, and the material discharge An opening penetrating the side wall of the core rod 105 is provided on the side of the bottom end of the channel 107, a slope 108 is radially penetrated through the bottom end of the core rod 105, and a double-headed sliding pin 109 is radially slidably installed inside the slope 108, an abutment wheel 110 is rotatably installed on the bottom end of the core rod 105, and the bottom side of the core rod 105 is elastically connected to the outer edge of the outer sleeve 103 through a spring 111, a connecting frame 2 is fixedly installed on the bottom side end of the fixed sleeve 101, and the end of the connecting frame 2 facing away from the fixed sleeve 101 is fixed to the side end of the assembly platform 3, a loading plate 4 is fixed on the side of the assembly platform 3, and a slide groove 5 is provided in the middle of the assembly platform 3, a cylinder mounting plate 6 is fixed on the end face of one side of the assembly platform 3, and a push cylinder 7 is fixed by bolts on the outer side of the cylinder mounting plate 6, a wedge block 8 is fixedly connected to the output end of the push cylinder 7, and the wedge block 8 is slidably matched with the slide groove 5, and the top slope of the wedge block 8 is abutted against the outer edge of the abutment wheel 110;
[0030] The specific operation is as follows: the wheel hub bearing to be assembled enters the middle part of the assembly table 3 from the side of the loading plate 4, and is pushed by the wedge block 8 at the output end of the pushing cylinder 7 to push the wheel hub bearing to be assembled to the assembly station at the bottom end of the recess of the bracket 9. During the forward movement of the wedge block 8, the top slope of the wedge block 8 applies pressure to the outer edge of the abutting wheel 110 at the bottom end of the core rod 105, so that the core rod 105 is lifted from the inner hole of the outer sleeve 103. On the one hand, the movable sleeve 106 fixedly connected to the top end of the core rod 105 receives the balls filled in the fixed sleeve 101. On the other hand, with the lifting of the core rod 105, the bottom end opening of the discharge channel 107 corresponds to the discharge pipe 104 at the side end of the outer sleeve 103, and a discharge channel for sequential discharge of the balls is established. The present application realizes the synchronous supply of the balls while realizing the pushing and loading of the inner and outer rings by linking the forward movement of the wedge block 8 with the sequential discharge of the balls, without the need to add an additional power component for the discharge of the balls, and has strong applicability.
[0031] See also Figure 5 and Figure 6 The other side end surface of the assembly table 3 is fixed with a bracket 9, and a driven pressing assembly 10 is slidably installed on the top of the notch of the bracket 9. The driven pressing assembly 10 includes a slide bar 1001, a pressure plate 1002 and a lever 1003. The slide bar 1001 is slidably installed on the top of the notch of the bracket 9, and the bottom end of the slide bar 1001 is plugged and fixed with a pressure plate 1002, and the pressure plate 1002 is abutted against the outer ring of the wheel hub bearing. The side end of the slide bar 1001 is fixedly connected with the lever 1003, and the driven The pressing assembly 10 further includes a second inclined plane 1004, an end 1005 and a return spring 1006. The second inclined plane 1004 is radially penetrated through the bottom end of the slide bar 1001, and the second inclined plane 1004 is abutted against the other end of the double-headed sliding pin 109 away from the first inclined plane 108. The end 1005 is fixedly mounted on the top end of the slide bar 1001, and the return spring 1006 is sleeved on the top end of the slide bar 1001, and the diameter of the return spring 1006 is larger than the diameter of the through hole at the top end of the notch of the bracket 9.
[0032] The specific operation is as follows: while the core rod 105 is lifted to realize the ball discharge, the inclined surface 108 radially opened at the bottom end of the core rod 105 synchronously squeezes one end of the double-headed sliding pin 109, so that the double-headed sliding pin 109 slides away from the side of the core rod 105, and then the other end of the double-headed sliding pin 109 squeezes the inclined surface 1004 at the bottom end of the slide rod 1001, so that the slide rod 1001 is located at the bottom end of the recess of the bracket 9 Move downward, and the abutment with the outer ring of the hub bearing is realized through the pressure plate 1002 fixedly connected to the bottom end of the slide rod 1001. The present application links the lifting process of the core rod 105 with the downward pressing stroke of the slide rod 1001, and drives the pressure plate 1002 to abut the outer ring of the hub bearing while realizing the ball discharge, thereby improving the linkage performance of the present application and having strong applicability;
[0033] See also Figure 5 and Figure 7 A linkage side-pull assembly 11 is fixed to the side of the notch of the bracket 9, and the linkage side-pull assembly 11 includes a fixing pin 1101, a swing arm 1102 and a shift fork 1103. The fixing pin 1101 is fixed to the side of the notch of the bracket 9, and the swing arm 1102 is rotatably installed inside the fixing pin 1101, and the end of the opposite surface of the swing arm 1102 is fixedly connected with the shift fork 1103, and the shift fork 1103 is engaged with the inner ring of the hub bearing. The linkage side-pull assembly 11 also includes a connecting rod 1104, and the middle end of the opposite surface of the swing arm 1102 is fixedly connected with the connecting rod 1104, and the middle part of the connecting rod 1104 is abutted with the outer edge of the shift rod 1003. The linkage side-pull assembly 11 also includes a tension spring 1105 and a connecting pin 1106. The connecting rod 1104 is externally connected with the tension spring 1105, and the end of the tension spring 1105 facing away from the connecting rod 1104 is hung with the connecting pin 1106;
[0034] The specific operation is as follows: when the slide bar 1001 is pressed down and abuts against the outer ring of the wheel hub bearing 110 through the pressure plate 1002, the lever 1003 at the side end of the slide bar 1001 squeezes the connecting rod 1104 in the middle of the opposite surface of the swing arm 1102, so that the swing arm 1102 swings clockwise with the root fixing pin 1101 as the rotation center, so that the fork 1103 at the end of the opposite surface of the swing arm 1102 pulls the inner ring of the wheel hub bearing and makes it fit against the inner wall of the outer ring, leaving the gap between the outer wall of the inner ring and the inner wall of the outer ring for filling with balls. By linking the abutment of the pressure plate 1002 on the outer ring with the shifting of the inner ring by the shift fork 1103, the inner ring is placed close to its inner wall through the shift fork 1103 while the abutment limit of the outer ring of the hub bearing is achieved, and the quantitative filling is completed with the sequential discharge of balls from the discharge pipe 104, so that the inner and outer ring loading, ball discharge, inner ring placement close to the inner wall of the outer ring and ball placement processes in the "fitting" process are all executed sequentially through a push cylinder 7, and the different actuators are precisely coordinated and highly linked, which is conducive to the refined control of production costs.
[0035] In summary, when the automobile wheel hub bearing processing assembly machine is used, the wheel hub bearing to be assembled enters the middle of the assembly table 3 from the side of the loading plate 4, and is pushed by the wedge block 8 at the output end of the pushing cylinder 7 to the assembly station at the bottom end of the recess of the bracket 9. During the forward movement of the wedge block 8, the top slope of the wedge block 8 applies pressure to the outer edge of the abutment wheel 110 at the bottom end of the core rod 105, so that the core rod 105 is lifted from the inside of the hole in the outer sleeve 103. On the one hand, the movable sleeve 106 fixedly connected to the top end of the core rod 105 receives the balls filled in the fixed sleeve 101. On the other hand, along with the lifting of the core rod 105, the bottom end opening of the discharge channel 107 is aligned with the discharge pipe 104 at the side end of the outer sleeve 103. Correspondingly, a discharge channel for sequential discharge of balls is established. The present application links the forward movement of the wedge block 8 with the sequential discharge of the balls, thereby realizing the synchronous supply of the balls while realizing the push-loading of the inner and outer rings. There is no need to add an additional power component for the discharge of the balls, and the application is strong. While the core rod 105 is lifted to realize the discharge of the balls, the inclined surface 108 radially opened at the bottom end of the core rod 105 synchronously squeezes one end of the double-headed sliding pin 109, so that the double-headed sliding pin 109 slides away from one side of the core rod 105, and then the other end of the double-headed sliding pin 109 squeezes the inclined surface 1004 at the bottom end of the sliding rod 1001, so that the sliding rod 1001 is located at the bottom end of the recess of the bracket 9 Move downward, The pressure plate 1002 fixedly connected at the end realizes the abutment cooperation with the outer ring of the hub bearing. The present application links the lifting process of the core rod 105 with the downward pressing stroke of the slide bar 1001, and drives the pressure plate 1002 to abut against the outer ring of the hub bearing while realizing the ball discharge, thereby improving the linkage performance of the present application and having strong applicability. In the process that the slide bar 1001 is pressed down and abuts against the outer ring of the hub bearing of the wheel 110 through the pressure plate 1002, the lever 1003 at the side end of the slide bar 1001 squeezes the connecting rod 1104 in the middle of the opposite surface of the swing arm 1102, so that the swing arm 1102 swings clockwise with the root fixing pin 1101 as the rotation center, so that the shift fork 1103 at the end of the opposite surface of the swing arm 1102 Pull the inner ring of the wheel hub bearing and make it fit against the inner wall of the outer ring, leaving a gap between the outer wall of the inner ring and the inner wall of the outer ring for filling with balls. The present application links the abutment of the pressure plate 1002 on the outer ring with the shifting of the inner ring by the shift fork 1103. While achieving the abutment limit of the outer ring of the wheel hub bearing, the inner ring is placed close to its inner wall through the shift fork 1103, and the quantitative filling is completed with the sequential discharge of balls from the discharge pipe 104. The inner and outer ring loading, ball discharge, inner ring placement close to the inner wall of the outer ring and ball placement processes in the "fitting" process are all executed sequentially through a push cylinder 7. The different actuators are precisely coordinated and highly linked, which is conducive to the refined control of production costs.
[0036] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.
Claims
1. An assembly machine for automobile wheel hub bearing processing, comprising a ball discharging assembly (1), characterized in that: The ball discharging assembly (1) comprises a fixed sleeve (101), a material holding cavity (102), an outer sleeve (103), a material discharge pipe (104), a core rod (105), a movable sleeve (106), a material discharge channel (107), a ramp (108), a double-headed sliding pin (109), an abutment wheel (110) and a spring (111). The fixed sleeve (101) is provided with a material holding cavity (102) with a top opening, and the outer sleeve (103) is fixed to the bottom of the fixed sleeve (101) by screws, and the middle part of the side end of the outer sleeve (103) is connected to the material discharge pipe (104), and the core rod (105) is slidably installed in the middle hole of the outer sleeve (103), and the core rod (111) A movable sleeve (106) is fixedly connected to the top of the core rod (105), a discharge channel (107) is axially opened inside the core rod (105), and the top of the discharge channel (107) is connected to the bottom end of the movable sleeve (106), and the bottom side of the discharge channel (107) is provided with an opening penetrating the side wall of the core rod (105), a bevel (108) is radially penetrated through the bottom end of the core rod (105), and a double-headed sliding pin (109) is radially slidably installed inside the bevel (108), an abutment wheel (110) is rotatably installed at the bottom end of the core rod (105), and the bottom side of the core rod (105) is elastically connected to the outer edge of the outer sleeve (103) through a spring (111).
2. The assembly machine for automobile wheel hub bearing processing according to claim 1, characterized in that: A connecting frame (2) is fixedly mounted on the bottom side end of the fixed sleeve (101), and one end of the connecting frame (2) facing away from the fixed sleeve (101) is fixed to the side end of the assembly platform (3).
3. The assembly machine for automobile wheel hub bearing processing according to claim 2, characterized in that: A loading plate (4) is fixed on the side of the assembly platform (3), and a sliding groove (5) is provided in the middle of the assembly platform (3).
4. The assembly machine for automobile wheel hub bearing processing according to claim 2, characterized in that: A cylinder mounting plate (6) is fixed to one end surface of the assembly platform (3), and a push cylinder (7) is fixed to the outer side of the cylinder mounting plate (6) with bolts.
5. The assembly machine for automobile wheel hub bearing processing according to claim 4, characterized in that: The output end of the push cylinder (7) is fixedly connected with a wedge block (8), and the wedge block (8) is slidably matched with the slide groove (5), and the top slope of the wedge block (8) is in abutment with the outer edge of the abutment wheel (110).
6. The assembly machine for automobile wheel hub bearing processing according to claim 2, characterized in that: A bracket (9) is fixed to the end surface of the other side of the assembly table (3); a driven pressing assembly (10) is slidably mounted on the top of the recess of the bracket (9); the driven pressing assembly (10) comprises a sliding rod (1001), a pressure plate (1002) and a lever (1003); the sliding rod (1001) is slidably mounted on the top of the recess of the bracket (9); the pressure plate (1002) is plugged and fixed to the bottom end of the sliding rod (1001); the pressure plate (1002) is abutted against the outer ring of the wheel hub bearing; the side end of the sliding rod (1001) is fixedly connected to the lever (1003).
7. The assembly machine for automobile wheel hub bearing processing according to claim 6, characterized in that: The driven pressing assembly (10) further comprises a second inclined plane (1004), an end head (1005) and a return spring (1006); the bottom end of the slide bar (1001) is radially penetrated by a second inclined plane (1004), and the second inclined plane (1004) is abutted against the other end of the double-headed sliding pin (109) away from the first inclined plane (108); the top end of the slide bar (1001) is fixedly mounted with an end head (1005), and the top end of the slide bar (1001) is sleeved with a return spring (1006), and the diameter of the return spring (1006) is larger than the diameter of the through hole at the top end of the notch of the bracket (9).
8. The assembly machine for automobile wheel hub bearing processing according to claim 6, characterized in that: A linkage side-pull assembly (11) is fixed to the recessed side of the bracket (9), and the linkage side-pull assembly (11) comprises a fixing pin (1101), a swing arm (1102) and a shift fork (1103). The fixing pin (1101) is fixed to the recessed side of the bracket (9), and the swing arm (1102) is rotatably mounted inside the fixing pin (1101). The end of the opposite surface of the swing arm (1102) is fixedly connected to a shift fork (1103), and the shift fork (1103) is snap-fitted with the inner ring of the wheel hub bearing.
9. The assembly machine for automobile wheel hub bearing processing according to claim 8, characterized in that: The linkage side-pull assembly (11) further comprises a connecting rod (1104), the middle end of the opposite surface of the swing arm (1102) is fixedly connected with the connecting rod (1104), and the middle part of the connecting rod (1104) is in abutment with the outer edge of the shifting rod (1003).
10. An assembly machine for automobile wheel hub bearing processing according to claim 9, characterized in that: The linkage side-pull assembly (11) further comprises a tension spring (1105) and a connecting pin (1106); the connecting rod (1104) is externally connected to the tension spring (1105), and one end of the tension spring (1105) facing away from the connecting rod (1104) is hooked to the connecting pin (1106).