A small tubing oil needle riveting device

Abstract

The utility model relates to a small -size oil pipe oil needle riveting device, include: main casing, the axial one annular assembly cavity is set up in its middle part, it has a positioning portion on the annular outer wall, and the inner wall of annular assembly cavity is annular array distribution with several unidirectional slope face tooth of same direction distribution, an outer shell bin, it half -encapsulated main casing and have a with the positioning cavity of positioning portion cooperation positioning, riveting spare, it sets up in annular assembly cavity and includes at least one riveting disc body, the first end cover of fixed riveting disc body outer edge through a plurality of bolt spare, and a plurality of riveting movable body that riveting disc body is on the annular array distribution, the inner end of riveting movable body has a rivet tooth part, and its outer end abuts unidirectional slope face tooth, and the edge of first end cover is equipped with first support arm, second end cover, it sets up in the axial one side of main casing and is fixed with riveting disc body through a plurality of bolt spare assembly, and its edge is equipped with the second support arm of first support arm fixed assembly with the composition movable arm.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic braking system technology, specifically to a small oil pipe and needle riveting device. Background Technology

[0002] In hydraulic braking systems, the hydraulic hoses connect the brake lever and the brake pump at both ends. To prevent leakage of the hydraulic fluid inside the hoses and to allow for quick assembly, needle pins are typically installed at both ends. The traditional connection method involves inserting the needle pin's connector directly into the free end of the hose, relying on friction and tightening forces to maintain the connection. However, in practical applications, especially in high-frequency vibration scenarios such as bicycles, this simple insertion method cannot guarantee a stable connection over the long term.

[0003] With technological advancements, the industry has gradually adopted a solution of attaching a reinforcing sleeve to the end of the oil pipe. Applying riveting force to the reinforcing sleeve causes it to deform, thus creating a more stable bond between the oil needle and the free end of the oil pipe. This improvement effectively enhances connection stability; however, existing riveting equipment still has shortcomings in long-term performance, mainly in the following aspects: existing riveting mechanisms cannot ensure a uniform distribution of riveting force, leading to uneven deformation of the reinforcing sleeve, which may loosen under long-term vibration conditions. Furthermore, the riveting process can easily damage the oil pipe and oil needle. In addition, existing equipment generally uses complex hydraulic or pneumatic drive systems, resulting in bulky equipment, high maintenance costs, and difficulty in adapting to the needs of small-batch flexible production. These technical deficiencies directly affect the reliability and service life of the hydraulic braking system.

[0004] To address this, we propose a small-scale oil pipe and needle riveting device. Utility Model Content

[0005] This application provides a small oil pipe and needle riveting device, which has the advantages of maintaining uniform riveting force, avoiding damage to the oil pipe and needle, and having a compact structure and simple operation.

[0006] This application provides a small oil pipe and needle riveting device, which is used in conjunction with an oil pipe fitting, an oil needle fitting, and a reinforcing sleeve. The reinforcing sleeve is fitted onto the free end of the oil pipe fitting, and the first end of the oil needle fitting is inserted into the free end of the oil pipe fitting. The device includes: The main housing has an annular assembly cavity axially formed in its middle, and a positioning part is provided on its annular outer wall. Furthermore, a number of unidirectional bevel teeth are distributed in an annular array on the inner wall of the annular assembly cavity. An outer casing partially covers the main casing and has a positioning cavity that cooperates with the positioning part for positioning; The riveting component is disposed in the annular assembly cavity and includes at least a riveting disc body, a first end cap fixed to the outer edge of the riveting disc body by a plurality of bolts, and a plurality of riveting movable bodies arranged in an annular array on the riveting disc body. The inner end of the riveting movable body has a riveting tooth portion, and its outer end abuts against the one-way slope tooth. The edge of the first end cap is provided with a first support arm. The second end cap is located on one axial side of the main housing and is fixedly assembled with the riveting disc body by a number of bolts. Its edge is provided with a second support arm that is fixedly assembled with the first support arm to form a movable arm. The movable arm drives the riveting component and the second end cap to rotate unidirectionally relative to the main housing, causing multiple unidirectional slope teeth to rotate in an increasing slope direction, squeezing several riveting movable bodies to move synchronously to compress the reinforcing sleeve riveting deformation, and fixing the oil pipe component and the oil needle component.

[0007] Optionally, the riveting component further includes: The riveting disc has a riveting station in its axial center and a plurality of riveting movable grooves arranged in a ring array on its second end annular outer wall. The riveting movable body is movably assembled in the riveting movable groove. The limiting post has several ends formed on the side of the riveting movable body near the riveting disc, and its second end is movably fitted into the first strip groove opened on the bottom wall of the riveting movable groove to limit the radial movement stroke of the riveting movable body. The second strip groove, which is several in number and arranged in a circular array, is matched and set on the first end face of the riveting disc body corresponding to the position of the first strip groove and is respectively connected to the first strip groove. The first elastic element, which is several in number and is respectively disposed in the second strip groove, has its two ends abutting against the bottom wall of the second strip groove and the second end of the limiting post extending into the second strip groove to provide the elastic restoring force of the riveting movable body.

[0008] Optionally, a ball assembly groove is radially formed at the outer end of the riveting movable body, and a ball is movably assembled in the ball assembly groove, with the outer edge of the ball rolling in contact with the one-way slope tooth; Both sides of the riveting groove are provided with ball guide grooves that match the rolling assembly of the outer edge of the ball bearing assembly.

[0009] Optionally, a rotation drive is mounted on the movable arm, and the output end of the rotation drive abuts against the positioning part to drive the riveting part and the second end cover to rotate unidirectionally relative to the main housing.

[0010] Optionally, the first end cap is annular and rotatably engages with the other side of the main housing along its axial direction.

[0011] Optionally, the first arm has at least one snap-fit ​​protrusion at one end facing the second arm, and the second arm has a snap-fit ​​groove that matches and snaps into the snap-fit ​​protrusion.

[0012] Optionally, the second end cap is provided with a first assembly part, which cooperates with a second assembly part provided on a frame to fix the riveting device.

[0013] Optionally, an oil syringe is axially fixed to the second end cap at the position corresponding to the riveting station, so as to accommodate the oil syringe and position the riveting position of the reinforcing sleeve during riveting.

[0014] Compared with related technologies, the small oil pipe and needle riveting device provided in this application has at least the following technical advantages: Through the coordinated action of the unidirectional bevel teeth and the riveting parts, when the movable arm drives the riveting parts and the second end cap to rotate unidirectionally relative to the main housing, each riveting movable body abuts against multiple unidirectional bevel teeth in the annular assembly cavity and rotates along the increasing direction of the bevel. This uniformly and synchronously compresses multiple riveting movable bodies to cause synchronous radial movement towards the center, thereby compressing the reinforcing sleeve to undergo uniform deformation under pressure, thus achieving the riveting of the reinforcing sleeve. This ensures that the force at each riveting point is consistent, effectively improving the connection stability of the connection structure. Furthermore, the unidirectional drive mechanism ensures that the riveting process is stable and controllable, effectively reducing the risk of accidental damage to the oil pipe and oil needle. At the same time, the overall device structure is simplified, achieving a compact structural layout and reducing the manufacturing cost of the riveting equipment.

[0015] Details of one or more embodiments of this application are set forth in the following drawings and description to make other features, objects and advantages of this application more readily apparent. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is one of the perspective views of a small oil pipe needle riveting device according to an exemplary embodiment.

[0018] Figure 2 This is one of the perspective views of a small oil pipe needle riveting device according to an exemplary embodiment.

[0019] Figure 3This is a cross-sectional view of a small tubing needle riveting device according to an exemplary embodiment.

[0020] Figure 4 This is one of the exploded views of a small tubing needle riveting device according to an exemplary embodiment.

[0021] Figure 5 This is the second exploded view of a small oil pipe needle riveting device according to an exemplary embodiment.

[0022] Explanation of reference numerals in the drawings: Main housing 10; Positioning part 101; Annular assembly cavity 102; One-way bevel tooth 103; Riveting component 20; riveting movable body 201; rivet tooth part 2011; Riveting disc 203; First strip groove 2031; Second strip groove 2032; Riveting station 2033; Riveting movable groove 2034; Ball guide groove 2035; Limiting post 203; elastic element 204; ball assembly groove 205; ball 206; First end cap 30; First bolt 301; First support arm 302; Snap-fit ​​protrusion 303; Second end cap 40; second bolt 401; second support arm 402; threaded hole 403; rotation drive 404; snap-fit ​​groove 405; Oil syringe 50; outer casing 60; positioning cavity 601. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In related technologies, the industry has gradually adopted a solution of attaching a reinforcing sleeve to the end of the tubing. By applying riveting force to the reinforcing sleeve, it deforms, thereby forming a more stable bond between the needle and the free end of the tubing. This improvement effectively enhances connection stability, but existing riveting equipment still has shortcomings in terms of long-term performance. These shortcomings are mainly: existing riveting mechanisms cannot ensure a uniform distribution of riveting force, resulting in uneven deformation of the reinforcing sleeve, which may loosen under long-term vibration; the riveting process can easily damage the tubing and needle; and the equipment is generally large in size and has a high cost.

[0027] Based on the above, this utility model provides a small oil pipe and needle riveting device, which will be described in detail below with reference to specific embodiments and accompanying drawings.

[0028] Example 1 Embodiment 1 of this utility model provides a small oil pipe and oil needle riveting device. Figure 1 This is one of the perspective views of a small oil pipe needle riveting device according to an exemplary embodiment. Figure 2 This is one of the perspective views of a small oil pipe needle riveting device according to an exemplary embodiment. Figure 3 This is a cross-sectional view of a small tubing needle riveting device according to an exemplary embodiment. Figures 1-3 As shown, the riveting device is used in conjunction with an oil pipe fitting a, an oil needle fitting c, and a reinforcing sleeve b. The reinforcing sleeve b is fitted onto the free end of the oil pipe fitting a, and the first end of the oil needle fitting c is inserted into the free end of the oil pipe fitting a. The device includes: The main housing 10 has an annular assembly cavity 102 axially formed in its middle part. The annular outer wall of the cavity has a positioning part 101, and the inner wall of the annular assembly cavity 102 has a number of unidirectional slope teeth 103 distributed in the same direction in an annular array. An outer shell compartment 60 partially covers the main shell and has a positioning cavity 601 that cooperates with the positioning part 101 for positioning; The riveting component 20 is disposed in the annular assembly cavity 102 and includes at least a riveting disc body 203, a first end cap 30 fixed to the outer edge of the riveting disc body 203 by a plurality of first bolts 301, and a plurality of riveting movable bodies 201 arranged in an annular array on the riveting disc body 203. The inner end of the riveting movable body 201 has a riveting tooth portion 2011, and its outer end abuts against a one-way slope tooth 103. The edge of the first end cap 30 is provided with a first support arm 302. In this embodiment, the riveting tooth portion 2011 is prismatic. The second end cap 40 is located on one axial side of the main housing 10 and is fixedly assembled with the riveting disc 203 by a number of second bolts 401. Its edge is provided with a second support arm 402 that is fixedly assembled with the first support arm 302 to form a movable arm. Among them, the movable arm drives the riveting component 20 and the second end cap 40 to rotate unidirectionally relative to the main housing 10, causing multiple unidirectional slope teeth 103 to rotate in the direction of increasing slope, squeezing several riveting movable bodies 201 to move synchronously to compress the riveting deformation of the reinforcing sleeve b, and fixing the oil pipe component a and the oil needle component c.

[0029] In the above embodiment, after the reinforcing sleeve b is fitted onto the free end of the oil pipe fitting a, it is assembled with the oil needle fitting c and placed at the riveting station 2033. When the movable arm drives the riveting component 20 and the second end cap 40 to rotate unidirectionally relative to the main housing 10, each riveting movable body 201 abuts against multiple unidirectional slope teeth 103 in the annular assembly cavity 102 and rotates along the slope increasing direction, pushing the outer end of the corresponding riveting movable body 201. Due to the continuous change in the increasing height of the unidirectional slope teeth 103, each riveting movable body 201 is subjected to uniform radial extrusion force, and its riveting tooth part 2011 presses the reinforcing sleeve b to produce uniform plastic deformation, so that the oil pipe fitting a and the oil needle fitting c form a stable connection. The technical solution of this application embodiment transforms the rotational motion into the synchronous radial motion of multiple riveting moving bodies 201, realizing the uniform deformation of the reinforcing sleeve b, ensuring that the force on each riveting point is consistent, effectively improving the connection stability of the connection structure, and the unidirectional drive mechanism ensures that the riveting process is stable and controllable, effectively reducing the risk of accidental damage to the oil pipe and oil needle. At the same time, the overall device structure is simplified, realizing a compact structural layout and reducing the manufacturing cost of the riveting equipment.

[0030] In this embodiment, Figure 4 This is one of the exploded views of a small tubing needle riveting device according to an exemplary embodiment. Figure 5 This is the second exploded view of a small tubing needle riveting device according to an exemplary embodiment. (Refer to...) Figures 4-5 The riveting component 20 also includes: The riveting disc 203 has a riveting station 2033 in its axial center, and a number of riveting movable grooves 2034 arranged in a ring array are radially opened on the annular outer wall of its second end, wherein the riveting movable body 201 is movably assembled in the riveting movable groove 2034. The limiting post 203 is a plurality of such posts. Its first end is formed on the side of the riveting movable body 201 near the riveting disc body 203, and its second end is movably fitted into the first strip groove 2031 opened on the bottom wall of the riveting disc body 203 to limit the radial movement of the riveting movable body 201. In this embodiment, the limiting post 203 can be a pin. The second strip groove 2032, which is a number of them and is distributed in a ring array, is matched and set on the first end face of the riveting disc 203 corresponding to the position of the first strip groove 2031 and is respectively connected to the first strip groove 2031. The elastic element 204, which is a plurality of such elements, is disposed in the second strip groove 2032. Its two ends abut against the bottom wall of the second strip groove 2032 and the second end of the limiting post 203 extending into the second strip groove 2032, respectively, to provide elastic restoring force for the riveting movable body. In this embodiment, the elastic element 204 is a helical spring or an elastic rubber post, which stores elastic potential energy in a pre-compressed state to drive the riveting movable body 201 to reset.

[0031] In the above embodiment, when each riveting movable body 201 abuts against multiple unidirectional slope teeth 103 in the annular assembly cavity 102 and rotates along the slope increasing direction, the slope increasing structure pushes the outer end of the riveting movable body 201, causing it to move along the riveting movable groove 2034 towards the center of the riveting station 2033; the end of the limiting post 203 slides in the composite guide groove formed by the first strip groove 2031 and the second strip groove 2032, which limits the maximum stroke of the riveting movable body 201 and avoids deflection during the movement; the elastic element 204 is compressed when the riveting movable body 201 moves centripetally, and when the riveting movable body 201 contacts the slope starting point of the next unidirectional slope tooth 103, the elastic element 204 releases the stored elastic force to push the riveting movable body 201 back to the initial position, ensuring that multiple riveting movable bodies 201 maintain synchronous movement during the riveting process. The technical solution of this application embodiment can solve the problem of inconsistent deformation of the reinforcing sleeve b caused by uneven riveting force distribution. In addition, with the elastic reset mechanism, it automatically restores the initial state after riveting is completed, preventing jamming from affecting continuous operation. Thus, while ensuring riveting accuracy, it reduces the complexity of equipment maintenance and is suitable for industrial continuous production scenarios.

[0032] In this embodiment, we continue to refer to Figures 4-5 A ball assembly groove 205 is radially opened at the outer end of the riveted movable body 201. A ball 206 is rotatably sleeved on the limiting post 203 in the ball assembly groove 205. The outer edge of the ball 206 rolls in contact with the one-way slope tooth 103. Both sides of the riveting groove 2034 are provided with ball guide grooves 2035 for rolling assembly of the outer edge of the matching ball 206.

[0033] In the above embodiment, when each riveting movable body 201 abuts against multiple unidirectional slope teeth 103 in the annular assembly cavity 102 and rotates along the increasing slope direction, the unidirectional slope teeth 103 distributed in the annular array sequentially contact the outer edge of the ball 206. The ball 206 rolls along the increasing slope of the unidirectional slope teeth 103 during rotation to push the riveting movable body 201 to make radial centripetal movement along the riveting movable groove 2034. During this process, the rolling trajectory of the ball 206 in the riveting movable groove 2034 is constrained, ensuring that the riveting teeth 2011 of all riveting movable bodies 201 synchronously and uniformly press the reinforcing sleeve b, thereby effectively converting sliding friction into rolling friction, reducing motion resistance, and avoiding abnormal wear of the contact surface between the riveting movable body 2101 and the riveting movable groove 2034, ensuring the stability of the riveting operation in a long-term working environment.

[0034] In this embodiment, we continue to refer to Figures 4-5 The first end cap 30 is annular and rotates with the other side of the main housing 10. In this embodiment, when the riveting member 20 and the second end cap 40 rotate unidirectionally relative to the main housing 10, the first end cap 30 and the second end cap 40 form bidirectional axial support on both sides of the main housing 10 through rotational engagement, avoiding radial offset during rotation and ensuring that the riveting force is evenly transmitted to the reinforcing sleeve b. At the same time, the main housing 10 remains stationary during the riveting process, ensuring that the centripetal motion trajectory of the riveting moving body 201 is stable. Meanwhile, the axial dimension of the overall device is reduced by the split housing design.

[0035] In this embodiment, please continue to refer to the appendix. Figure 1-2 The movable arm is equipped with a rotary drive 404. The output end of the rotary drive 404 abuts against the positioning part 101 to drive the riveting part and the second end cover to rotate unidirectionally relative to the main housing. In this embodiment, the rotary drive 404 can adopt a threaded fit structure, that is, a threaded hole 403 is opened on the movable arm, and a threaded section matching the threaded hole 403 is provided on the rotary drive 404. Its output end abuts against the positioning part 101, and the other end can be operated manually or connected to an external power source (such as a motor) to achieve rapid and continuous industrial processing. Furthermore, the rotation drive 404 can also be configured as a conventional existing drive structure such as a cylinder or ball screw to satisfy the requirement that the drive arm rotates relative to the positioning part 101.

[0036] In this embodiment, please continue to refer to the appendix. Figure 1-5The second end cap 40 is provided with a first assembly part 402. The first assembly part 402 cooperates with a second assembly part provided on a frame to install and fix the riveting device. In this example, the first assembly part 402 is cylindrical and the second assembly part is rod-shaped. During assembly, the second assembly part is inserted into the first assembly part 402 to fix the riveting device on the frame.

[0037] Example 2 The difference between Embodiment 2 and Embodiment 1 is that an oil syringe 50 is axially fixed at the position of the second end cap 40 corresponding to the riveting station 2033, so as to accommodate the oil needle c and position the riveting position of the reinforcing sleeve b during riveting. During the riveting process, the oil needle c passes through the riveting station 2033 and reaches the oil syringe 50 and abuts against the end of the inner cavity of the oil syringe 50. At this time, the deformation area of ​​the reinforcing sleeve b is precisely controlled at the riveting station 2033, forming a rapid workpiece positioning.

[0038] Other undescribed structures are described in Example 1.

[0039] In summary, the small oil pipe and needle riveting device provided in this embodiment of the present invention, through the coordinated cooperation of the unidirectional bevel teeth and the riveting parts, when the movable arm drives the riveting parts 20 and the second end cap 40 to rotate unidirectionally relative to the main housing 10, each riveting movable body 201 abuts against multiple unidirectional bevel teeth 103 in the annular assembly cavity 102 and rotates along the increasing direction of the bevel, thereby uniformly and synchronously squeezing multiple riveting movable bodies 201 to cause synchronous radial movement towards the center to compress the reinforcing sleeve b to be uniformly deformed under pressure, thereby realizing the riveting of the reinforcing sleeve b, ensuring that the force at each riveting point is consistent, effectively improving the connection stability performance of the connection structure, and the unidirectional drive mechanism ensures that the riveting process is stable and controllable, effectively reducing the risk of accidental damage to the oil pipe a and the oil needle c. At the same time, the overall device structure is simplified, achieving a compact structural layout and reducing the manufacturing cost of the riveting equipment.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A small oil pipe and needle riveting device, used in conjunction with an oil pipe fitting, an oil needle fitting, and a reinforcing sleeve, wherein the reinforcing sleeve is fitted onto the free end of the oil pipe fitting, and the first end of the oil needle fitting is inserted into the free end of the oil pipe fitting, characterized in that, include: The main housing has an annular assembly cavity axially formed in its middle, and a positioning part is provided on its annular outer wall. Furthermore, a number of unidirectional bevel teeth are distributed in an annular array on the inner wall of the annular assembly cavity. An outer casing partially covers the main casing and has a positioning cavity that cooperates with the positioning part for positioning; The riveting component is disposed in the annular assembly cavity and includes at least a riveting disc body, a first end cap fixed to the outer edge of the riveting disc body by a plurality of bolts, and a plurality of riveting movable bodies arranged in an annular array on the riveting disc body. The inner end of the riveting movable body has a riveting tooth portion, and its outer end abuts against the one-way slope tooth. The edge of the first end cap is provided with a first support arm. The second end cap is located on one axial side of the main housing and is fixedly assembled with the riveting disc body by a number of bolts. Its edge is provided with a second support arm that is fixedly assembled with the first support arm to form a movable arm. The movable arm drives the riveting component and the second end cap to rotate unidirectionally relative to the main housing, causing multiple unidirectional slope teeth to rotate in an increasing slope direction, squeezing several riveting movable bodies to move synchronously to compress the reinforcing sleeve riveting deformation, and fixing the oil pipe component and the oil needle component.

2. The riveting device as described in claim 1, characterized in that, The riveting component also includes: The riveting disc has a riveting station in its axial center and a plurality of riveting movable grooves arranged in a ring array on its second end annular outer wall. The riveting movable body is movably assembled in the riveting movable groove. The limiting post has several ends formed on the side of the riveting movable body near the riveting disc, and its second end is movably fitted into the first strip groove opened on the bottom wall of the riveting movable groove to limit the radial movement stroke of the riveting movable body. The second strip groove, which is several in number and arranged in a circular array, is matched and set on the first end face of the riveting disc body corresponding to the position of the first strip groove and is respectively connected to the first strip groove. The first elastic element, which is several in number and is respectively disposed in the second strip groove, has its two ends abutting against the bottom wall of the second strip groove and the second end of the limiting post extending into the second strip groove to provide the elastic restoring force of the riveting movable body.

3. The riveting device as described in claim 2, characterized in that, A ball assembly groove is radially formed at the outer end of the riveting movable body, and a ball is movably assembled in the ball assembly groove. The outer edge of the ball is in rolling contact with the one-way slope tooth. Both sides of the riveting groove are provided with ball guide grooves that match the rolling assembly of the outer edge of the ball bearing assembly.

4. The riveting device as described in claim 1, characterized in that, A rotation drive is mounted on the movable arm. The output end of the rotation drive abuts against the positioning part to drive the riveting part and the second end cover to rotate unidirectionally relative to the main housing.

5. The riveting device as described in claim 1, characterized in that, The first end cap is annular and rotates with the other side of the main housing along its axial direction.

6. The riveting device as described in claim 1, characterized in that, The first arm has at least one snap-fit ​​protrusion at one end facing the second arm, and the second arm has a snap-fit ​​groove that matches and snaps into the snap-fit ​​protrusion.

7. The riveting device as described in claim 1, characterized in that, The second end cap is provided with a first assembly part, which is used in conjunction with a second assembly part provided on a frame to fix the riveting device.

8. The riveting device as described in claim 2, characterized in that, An oil syringe is axially fixed to the second end cap at the position corresponding to the riveting station, so as to accommodate the oil syringe and position the riveting position of the reinforcing sleeve during riveting.

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