A starter drive cover press fitting tool

Abstract

The application relates to a starter drive cover press-fitting tool and belongs to the field. The starter drive cover press-fitting tool is used for being installed on a press machine and comprises a punch riveting part, one end of the punch riveting part being used for being connected with power driving of a press-fitting device, the other end being used for riveting and punching an end face of the starter drive cover; a base being used for being connected with a working platform of the press-fitting device; a positioning seat being provided with a mounting groove on the base and being inserted into the mounting groove and coaxially connected with the base; a concentric seat being provided with a positioning groove on the positioning seat, a bottom wall of the positioning groove being coaxially provided with an insertion groove, the positioning seat being coaxially connected into the positioning groove, one end of the concentric seat being inserted into the insertion groove, the other end being used for being coaxially connected with an inner stop opening of the starter drive cover, and the outer wall of the concentric seat and the inner wall of the positioning groove forming a processing area for placing the starter drive cover, and the punch riveting part punches downward along the axis of the concentric seat to rivet and punch the starter drive cover placed in the processing area for placing the starter drive cover. The application can quickly adapt to starters with different eccentric distances and angles.

Description

Technical Field

[0001] This application relates to the field of starter assembly technology, and in particular to a starter drive cover press-fit tooling. Background Technology

[0002] When assembling the starter motor, a bearing needs to be press-fitted into the drive cover to ensure the flexibility and stability of the motor rotation. To prevent the bearing from falling off when the starter motor is working, we need to perform punching and riveting on the end face of the drive cover. The protrusions of the punching and riveting will press the bearing tightly.

[0003] Currently, most bearing riveting fixtures in the industry use mounting stop for positioning. The traditional stop positioning method is mainly suitable for workpieces with concentric structures, that is, workpieces where the outer and inner stops are concentric. However, many starters are now eccentric starters. The outer and inner stops of eccentric starters are not concentric, and the eccentricity and angle are different. This makes it impossible to directly apply the traditional stop positioning method to bearing riveting fixtures for eccentric starters.

[0004] To meet the requirements of different eccentricities and angles, various different positioning bases need to be prepared. This not only increases tooling costs but also makes the changeover process complex and time-consuming, affecting the production cycle. Summary of the Invention

[0005] This application provides a starter drive cover press-fit fixture to solve the problem that using mounting stop positioning for eccentric starters requires many types of positioning bases, which are complicated to replace and affect the production cycle.

[0006] This application provides a starter drive cover press-fit fixture, comprising: a starter drive cover press-fit fixture for mounting on a press, comprising: a riveting part, one end of which is connected to the power drive of the press-fitting equipment, and the other end of which is used to rivet the end face of the starter drive cover; a base, which is connected to the working platform of the press-fitting equipment; a positioning seat, the base having a mounting groove, the positioning seat being inserted into the mounting groove and coaxially connected to the base; and a concentric seat, the positioning seat having a positioning groove, the bottom wall of the positioning groove having a slot coaxially provided, the positioning seat and the concentric seat being coaxially connected in the positioning groove, one end of the concentric seat being inserted into the slot, and the other end being coaxially connected to the inner stop of the starter drive cover, the outer wall of the concentric seat and the inner wall of the positioning groove forming a processing area for placing the starter drive cover, and the riveting part riveting the starter drive cover in the processing area along the axis of the concentric seat downwards.

[0007] In some embodiments, a correction sleeve and a support block are also included. A correction block is concentrically provided along the axis of one end of the riveted part near the starter drive cover. One end of the correction sleeve is fitted with the correction block, and the other end is fitted onto the support block. A positioning hole is also provided on the support block coaxial with the correction block. One end of the concentric seat away from the positioning seat is inserted into the positioning hole.

[0008] In some embodiments, the riveting part includes: a mounting base and riveting heads. The mounting base is used to connect to the power drive of the press-fitting equipment. Multiple riveting heads are evenly distributed around the end of the mounting base near the starter drive cover. The base is rotatably connected to the working platform of the press-fitting equipment.

[0009] In some embodiments, the riveting part further includes an elastic pad and a pre-pressing member. One end of the mounting base is provided with a connecting groove, the opening of the connecting groove faces the starter drive cover, the elastic pad is connected to the bottom wall of the connecting groove, one end of the pre-pressing member is located in the connecting groove and connected to the elastic pad, and the other end of the pre-pressing member extends out from the opening of the connecting groove and is used to press against the end face of the starter drive cover.

[0010] In some embodiments, when the correction block moves near the starter drive cover, the end face of the correction block abuts against the top surface of the support block.

[0011] In some embodiments, the base includes a connecting seat and a rotating seat. The connecting seat is fixedly connected to the working platform of the pressing equipment, and the rotating seat is rotatably connected to the connecting seat. The mounting groove is provided on the rotating seat, and the rotating seat is also provided with a rotating handle.

[0012] In some embodiments, the connecting seat is coaxially provided with a connecting hole, and a connecting shaft is rotatably connected in the connecting hole. The connecting shaft extends from the top of the connecting hole and is rotatably connected to the rotating seat.

[0013] In some embodiments, a countersunk groove is provided on the bottom wall of the mounting groove, and a gasket is provided on the bottom wall of the countersunk groove at the top of the connecting shaft, and a fastening screw is connected between the gasket and the connecting shaft.

[0014] In some embodiments, the rotating seat is further provided with a limiting pin, and the connecting seat is provided with an arc-shaped groove adapted to the limiting pin, wherein the included angle between the centers of the two ends of the arc-shaped groove is set to 30 degrees.

[0015] In some embodiments, the rotating seat is further provided with a positioning pin, which is used to connect with the mounting hole on the starter drive cover.

[0016] The beneficial effects of the technical solution provided in this application include:

[0017] This application provides a starter drive cover press-fit fixture, including a riveting part, one end of which is used to connect to the power drive of the press-fitting equipment, and the other end is used to rivet the end face of the starter drive cover; a base, which is used to connect to the working platform of the press-fitting equipment; a positioning seat, the base having a mounting groove, the positioning seat being inserted into the mounting groove and coaxially connected to the base; and a concentric seat, the positioning seat having a positioning groove, the bottom wall of the positioning groove having a slot coaxially provided, the positioning seat and the concentric seat being coaxially connected in the positioning groove, and one end of the concentric seat being inserted into the slot, the other end being used to coaxially connect to the inner stop of the starter drive cover, the outer wall of the concentric seat and the inner wall of the positioning groove forming a processing area for placing the starter drive cover. Therefore, the starter drive cover press-fit fixture of this application mainly consists of four parts: a punching and riveting part, a base, a positioning seat, and a concentric seat. The positioning seat is inserted into the mounting groove and coaxially connected to the base, allowing different positioning seats to be replaced according to actual needs to adapt to starters with different eccentricities and angles. The concentric seat is inserted into the slot of the positioning groove and coaxially connected to the positioning seat, ensuring coaxial connection with the inner stop of the starter drive cover, achieving precise positioning regardless of changes in the starter's eccentricity and angle. Therefore, this application can quickly adapt to starters with different eccentricities and angles, reducing production interruptions caused by tooling changes and improving the versatility of the starter drive cover press-fit fixture. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A cross-sectional schematic diagram illustrating the overall structure is provided for the embodiments of this application;

[0020] Figure 2 A schematic diagram illustrating the riveting part provided in an embodiment of this application;

[0021] Figure 3 This application provides a schematic diagram of the top view of the base structure for an embodiment;

[0022] Figure label:

[0023] 1. Riveting part; 10. Mounting base; 11. Riveting head; 12. Elastic pad; 13. Pre-compression part; 20. Connecting seat; 21. Rotating seat; 210. Mounting groove; 211. Rotating handle; 22. Limit pin; 200. Arc groove; 23. Positioning pin; 3. Positioning seat; 300. Positioning groove; 301. Slot; 4. Concentric seat; 5. Correction sleeve; 6. Support block; 7. Correction block; 80. Connecting shaft; 81. Countersunk groove; 82. Washer; 83. Fastening screw. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] This application provides a starter drive cover press-fit fixture, which solves the problem of using mounting stop positioning for eccentric starters, which requires many types of positioning bases, making replacement complicated and affecting production cycle.

[0026] See Figures 1 to 3 As shown in the figure, this application provides a starter drive cover press-fit fixture. This application installs the starter drive cover press-fit fixture on a press. The starter drive cover press-fit fixture includes: a riveting part 1, a base, a positioning seat 3, and a concentric seat 4. One end of the riveting part 1 is used to connect to the power drive of the press-fitting equipment, and the other end is used to rivet the end face of the starter drive cover. In this application, the press-fitting setup includes, but is not limited to, a press. The riveting part 1 can receive and transmit the power generated by the press. A base is provided to connect to the working platform of the press-fitting equipment. The base can ensure the stability and accuracy of the entire tooling during the working process. The positioning seat 3 is connected by setting an mounting groove 210 on the base. The positioning seat 3 is inserted into the mounting groove 210 and coaxially connected to the base. The positioning seat 3 provides a precise positioning reference. The concentric seat 4 is connected by setting a positioning groove 300 on the positioning seat 3. The bottom wall of the positioning groove 300 is coaxially provided with a slot 301. The positioning seat 3 and the concentric seat 4 are coaxially connected in the positioning groove 300. One end of the concentric seat 4 is inserted into the slot 301, and the other end is used to coaxially connect with the inner stop of the starter drive cover. At that time, a processing area for placing the starter drive cover is formed on the outer wall of the concentric seat 4 and the inner wall of the positioning groove 300.

[0027] In this application, the concentric seat 4 is configured with at least three shaft segments, with the middle shaft segment having the largest diameter. The diameter of the shaft segment inserted into the slot 301 is also larger than the diameter of the shaft segment 80 that is coaxially connected to the inner stop of the starter drive cover. In use, the starter drive cover is fitted onto the concentric seat 4. At this time, the concentric seat 4 can directly position the starter drive cover. Then, the riveting part 1 rivets the starter drive cover in the processing area of ​​the starter drive cover along the axis of the concentric seat 4, effectively completing the riveting of the starter drive cover.

[0028] During the use of the starter drive cover press-fit fixture, to accommodate starters with different eccentricities and angles, the positioning seat 3 can be replaced, ensuring the accuracy and stability of positioning. Since the inner stop of the starter drive cover is concentric with the bearing mounting hole, the concentric seat 4, inserted into the positioning seat 3, is coaxially connected and positioned with the inner stop of the starter drive cover. That is, by using the inner stop for positioning, precise positioning can be achieved regardless of changes in the starter's eccentricity and angle, reducing production interruptions caused by tooling changes and improving the versatility of the starter drive cover press-fit fixture.

[0029] In this application, the starter drive cover press-fit fixture also includes a correction sleeve 5 and a support block 6. A correction block 7 is concentrically positioned along the axis of the riveting part 1 near the starter drive cover. One end of the correction sleeve 5 is fitted onto the correction block 7, and the other end is fitted onto the support block 6. The support block 6, coaxial with the correction block 7, also has a positioning hole. The end of the concentric seat 4, away from the positioning seat 3, is inserted into the positioning hole. In use, the correction block 7, correction sleeve 5, support block 6, and concentric seat 4 are all on the same axis, thus enabling the riveting part 1 to be coaxially aligned with the concentric seat 4. Its function is to correct the riveting part 1 and the concentric seat 4 after starting work or changing the fixture, ensuring the machining accuracy of the starter drive cover. After correction, the correction sleeve 5 can be removed.

[0030] In practical use, when the riveting part 1 moves downward and causes the correction block 7 to move closer to the starter drive cover, the end face of the correction block 7 abuts against the top surface of the support block 6. In turn, by using the cooperation of the correction block 7 and the support block, the stamping depth of the riveting part 1 can be limited to ensure that the drive cover is not damaged by excessive pressure.

[0031] In this application, the riveting part 1 includes a mounting base 10 and riveting heads 11. The mounting base 10 is used to connect to the power drive of the pressing equipment. The mounting base 10 serves as the main structure of the riveting part 1, ensuring the stability and accuracy of the riveting operation. Multiple riveting heads 11 are evenly distributed around the end of the mounting base 10 near the starter drive cover, and the base is rotatably connected to the working platform of the pressing equipment.

[0032] In use, the power drive of the press-fitting equipment drives the mounting base 10 to move downward, and multiple riveting heads 11 rivet the end face of the starter drive cover. Then, according to the required number of riveting points, the base is rotated to change the position of the starter drive cover, and the riveting of the starter drive cover is repeated.

[0033] In this application, the base includes a connecting seat 20 and a rotating seat 21. The connecting seat 20 is fixedly connected to the working platform of the pressing equipment, and the rotating seat 21 is rotatably connected to the connecting seat 20. A mounting groove 210 is provided on the rotating seat 21, and a rotating handle 211 is also provided on the rotating seat 21. The connection method between the connecting seat 20 and the rotating seat 21 includes, but is not limited to, using a coaxial connecting hole on the connecting seat 20, with a connecting shaft 80 rotatably connected within the connecting hole. The connecting shaft 80 extends from the top of the connecting hole and is rotatably connected to the rotating seat 21. The base provides stability and reliability during the pressing process. The rotating seat 21 can rotate within a certain range, providing greater flexibility and convenience. The position and angle of the mounting groove 210 and its mounted components can be adjusted as needed to adapt to the pressing requirements of different workpieces. The rotating handle 211 allows the operator to easily drive the rotation of the rotating seat 21 by rotating the handle, simplifying the operation process and improving work efficiency.

[0034] In this application, by setting a limiting pin 22 on the rotating seat 21 and an arc-shaped groove 200 adapted to the limiting pin 22 on the connecting seat 20, the included angle between the two ends of the arc-shaped groove 200 is marked as A, and A is set to 30 degrees, thereby ensuring that the rotation angle range of the rotating seat 21 is within 30 degrees.

[0035] In this application, there are 6 riveting heads 11. The 6 riveting heads 11 are evenly distributed along the circumference of the mounting base 10. The interval between two adjacent riveting heads 11 is 60 degrees. After rotating the starter drive cover by 30 degrees, the 6 points can be riveted, achieving a total of 12 riveting points.

[0036] In this application, to ensure a reliable connection between the rotating seat 21 and the connecting seat 20, a countersunk groove 81 is provided on the bottom wall of the mounting groove 210. A washer 82 is provided on the bottom wall of the countersunk groove 81 at the top of the connecting shaft 80, and a fastening screw 83 is connected between the washer 82 and the connecting shaft 80. The engagement of the fastening screw 83 with the connecting shaft 80 allows the washer 82 to be connected within the countersunk groove 81, and the washer 82 restricts the shaking and displacement of the connecting shaft 80.

[0037] In this application, the riveting part 1 further includes an elastic pad 12 and a preload member 13. The mounting base 10 serves as the main structure of the riveting part 1. One end of the mounting base 10 is provided with a connecting groove, the opening of which faces the starter drive cover. The connecting groove provides space for the installation and positioning of the elastic pad 12 and the preload member 13. The elastic pad 12 is connected to the bottom wall of the connecting groove. One end of the preload member 13 is located inside the connecting groove and connected to the elastic pad 12. The other end of the preload member 13 extends out from the opening of the connecting groove and is used to press against the end face of the starter drive cover.

[0038] In operation, before the riveting head 11 rivets the starter drive cover downwards, the pre-pressing component 13 first contacts the starter drive cover, thereby compressing the elastic pad 12 to generate an elastic restoring force. When the press pressure disappears, the elastic pad rebounds, pushing the pre-pressing component 13 forward and retracting the riveting head 11 from the workpiece. The displacement generated by the press simultaneously achieves both pre-pressing and riveting actions. The pre-pressing component 13 helps to accurately position and pre-press the starter drive cover before riveting, thereby improving the accuracy and stability of the riveting operation. At the same time, the automatic retraction function also avoids the risk of the riveting head 11 remaining in the starter drive cover after operation, improving operational safety.

[0039] In this application, during the pressing process, the starter drive cover may be subjected to various forces and torques from the pressing equipment. Without restraint, the starter drive cover may experience angular movement, leading to inaccurate pressing or uneven distribution of the pressing points. Therefore, a locating pin 23 is also provided on the rotating base 21. The locating pin 23 is used to connect with the mounting hole on the starter drive cover, ensuring the stability and positional accuracy of the starter drive cover during the pressing process. Through the insertion and fixing of the locating pin, the starter drive cover is firmly locked in the predetermined position, thereby preventing angular movement during the pressing process.

[0040] In the description of this application, it should be noted that the terms "upper," "lower," 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 application 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 application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0041] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A starter drive cover press-fitting fixture, characterized in that, The starter drive cover press-fit fixture is used for mounting on a press and includes: The riveting part (1) has one end for connecting to the power drive of the press-fitting equipment and the other end for riveting the end face of the starter drive cover; The base is used to connect to the working platform of the press-fitting equipment. The riveting part (1) includes: a mounting base (10) and riveting heads (11). The mounting base (10) is used to connect to the power drive of the press-fitting equipment. Multiple riveting heads (11) are evenly distributed around the end of the mounting base (10) near the starter drive cover. The base is rotatably connected to the working platform of the press-fitting equipment. The positioning seat (3) is provided with a mounting groove (210) on the base. The positioning seat (3) is inserted into the mounting groove (210) and coaxially connected with the base. The base includes a connecting seat (20) and a rotating seat (21). The connecting seat (20) is fixedly connected to the working platform of the pressing equipment. The rotating seat (21) is rotatably connected to the connecting seat (20). The mounting groove (210) is provided on the rotating seat (21). The rotating seat (21) is also provided with a rotating handle (211). The rotating seat (21) is also provided with a limiting pin (22). The connecting seat (20) is provided with an arc groove (200) that is adapted to the limiting pin (22). The included angle between the two ends of the arc groove (200) is set to 30 degrees. The rotating seat (21) is also provided with a positioning pin (23). The positioning pin (23) is used to connect with the mounting hole on the starter drive cover. The concentric seat (4) is provided with a positioning groove (300) on the positioning seat (3). The bottom wall of the positioning groove (300) is coaxially provided with a slot (301). The positioning seat (3) and the concentric seat (4) are coaxially connected in the positioning groove (300). One end of the concentric seat (4) is inserted into the slot (301), and the other end is used to coaxially connect with the inner stop of the starter drive cover. The outer wall of the concentric seat (4) and the inner wall of the positioning groove (300) form a processing area for placing the starter drive cover. The riveting part (1) rivets the starter drive cover in the processing area along the axis of the concentric seat (4) downwards.

2. The starter drive cover press-fitting fixture as described in claim 1, characterized in that: It also includes a correction sleeve (5) and a support block (6). The end of the riveting part (1) near the starter drive cover is concentrically provided with a correction block (7) along its axis. One end of the correction sleeve (5) is fitted with the correction block (7), and the other end is fitted on the support block (6). The support block (6) is also provided with a positioning hole coaxial with the correction block (7). The end of the concentric seat (4) away from the positioning seat (3) is inserted into the positioning hole.

3. The starter drive cover press-fitting fixture as described in claim 1, characterized in that: The riveting part (1) also includes an elastic pad (12) and a pre-pressing member (13). One end of the mounting base (10) is provided with a connecting groove, the opening of the connecting groove faces the starter drive cover, the elastic pad (12) is connected to the bottom wall of the connecting groove, one end of the pre-pressing member (13) is located in the connecting groove and is connected to the elastic pad (12), and the other end of the pre-pressing member (13) extends out from the opening of the connecting groove and is used to press against the end face of the starter drive cover.

4. The starter drive cover press-fitting fixture as described in claim 2, characterized in that: When the correction block (7) moves close to the starter drive cover, the end face of the correction block (7) abuts against the top surface of the support block (6).

5. The starter drive cover press-fitting fixture as described in claim 1, characterized in that: The connecting seat (20) is provided with a connecting hole on the same axis. A connecting shaft (80) is rotatably connected in the connecting hole. The connecting shaft (80) extends out from the top of the connecting hole and is rotatably connected to the rotating seat (21).

6. The starter drive cover press-fitting fixture as described in claim 5, characterized in that: The mounting groove (210) has a countersunk groove (81) on its bottom wall. A gasket (82) is provided on the bottom wall of the countersunk groove (81) at the top of the connecting shaft (80). A fastening screw (83) is connected between the gasket (82) and the connecting shaft (80).

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