Riveting device for coded lock

Abstract

The utility model provides a coded lock riveting device which comprises a workbench, a rotating mechanism installed on the workbench, a plurality of coded lock tools installed on the rotating mechanism and a riveting mechanism installed on the workbench and located beside the rotating mechanism. The rotating mechanism drives the coded lock tool to rotate at equal angles, a feeding station and a riveting station are arranged in the circumferential direction of the rotating mechanism, and the riveting mechanism is located on the riveting station. After the rotating mechanism rotates each time, coded lock tools are arranged on the riveting station and the feeding station; and the riveting direction of the riveting mechanism is parallel to the ground. Through the arrangement of the rotating mechanism and the coded lock tools, the feeding station and the riveting station are separated, so that an operator can install the coded lock on the coded lock tools while riveting is carried out on the coded lock, riveting and feeding of the coded lock can be carried out synchronously, and the riveting efficiency of the coded lock is improved. Therefore, the installation and riveting time of the coded lock is shortened, and the riveting effect of the coded lock is improved.

Description

Technical Field

[0001] This utility model relates to the field of combination lock technology, specifically to a combination lock riveting device. Background Technology

[0002] A rotary combination lock typically consists of multiple rings riveted together on a central tube. These rings include a fixed ring with a non-circular center and combination rings marked with numbers or letters. The outer side of each combination ring usually has a knurled metal disc to facilitate rotation. At the very end of the lock, a rotating keyhole is riveted in place. Rotary combination locks are widely used in safes, filing cabinets, and suitcases, and the quality of the back cover installation significantly impacts the overall performance and user experience.

[0003] The installation of the back cover in most existing rotary combination locks requires first placing the back cover in the designated position on the lock body, then using tools to tap the lock body to deform the riveting joints and pre-fix the back cover. After this pre-fixation, the back cover is then manually placed on a riveting machine for riveting. In this existing technology, the riveting station and the material loading station are the same station. Improper operation can easily threaten the safety of the operators. Furthermore, this riveting method requires that the combination lock to be riveted be loaded only after the riveting is completed, affecting the production efficiency of rotary combination locks.

[0004] Therefore, there is an urgent need to provide a riveting device that can guarantee the safety of operators and improve the riveting efficiency of rotary combination locks. Utility Model Content

[0005] The purpose of this invention is to provide a combination lock riveting device to solve the problems in the prior art where the riveting station and the feeding station are the same station, which can easily lead to operator injury and affect the riveting efficiency of the turntable combination lock.

[0006] To achieve the above objectives, this utility model proposes a combination lock riveting device, including a workbench, a rotating mechanism mounted on the workbench, multiple combination lock fixtures mounted on the rotating mechanism, and a riveting mechanism mounted on the workbench and located beside the rotating mechanism. The rotating mechanism drives the combination lock fixtures to rotate at equal angles. A feeding station and a riveting station are provided along the circumference of the rotating mechanism, and the riveting mechanism is located at the riveting station. After each rotation of the rotating mechanism, there are combination lock fixtures at both the riveting station and the feeding station. The riveting direction of the riveting mechanism is parallel to the ground.

[0007] Optionally, the rotating mechanism includes a mounting base mounted on the worktable, a cam divider mounted on the mounting base, a rotating disk mounted on the cam divider, and a rotating power source mounted on the mounting base and connected to the cam divider; multiple combination lock fixtures are mounted on the rotating disk and are installed at equal angles with the center of the rotating disk as the rotation center.

[0008] Optionally, the combination lock is mounted upright on the combination lock fixture.

[0009] Optionally, the combination lock fixture includes a fixture base mounted on a rotating mechanism, a first end block and a second end block mounted on both ends of the fixture base, a connecting post mounted on the first end block and the second end block, a sliding block movably mounted on the connecting post, a lock seat mounted on the sliding block, and a lock sleeve mounted on the lock seat, the lock sleeve having a lock groove for installing the combination lock.

[0010] Optionally, a spring is fitted onto the connecting column, with one end of the spring abutting against the sliding block and the other end abutting against the second end block.

[0011] Optionally, when the combination lock is installed on the lock groove and the upper riveting mechanism rivets the back cover of the combination lock, the sliding block will move along the connecting post to the second end block to compress the spring.

[0012] Optionally, the sliding block is L-shaped; the lock seat is provided with a groove corresponding to the lock sleeve, and a limiting platform is provided in the groove, the lock sleeve contacts the limiting platform, the groove is also provided with a locking protrusion, and the lock sleeve is provided with a locking groove corresponding to the locking protrusion; a limiting plate that contacts the lock sleeve can be detachably installed at the groove opening.

[0013] Optionally, the lock groove includes a through groove located at the center of the lock sleeve, a limiting groove located at the top of the through groove, a clearance groove connected to the through groove, and a guide surface located at the opening of the through groove.

[0014] Optionally, the riveting mechanism includes a riveting seat mounted on a workbench, a riveting groove on the riveting seat corresponding to the combination lock tooling, a riveting power source mounted on the riveting seat, a connecting hole on the riveting seat corresponding to the riveting power source, a riveting movable sleeve mounted on the riveting power source and located in the connecting hole, and a riveting fixed seat mounted on the riveting seat and located in the riveting groove.

[0015] Optionally, the combination lock on the combination lock fixture located at the riveting station is positioned between the riveting fixed seat and the riveting movable sleeve.

[0016] Optionally, during riveting, the riveting power source drives the riveting moving sleeve to move the combination lock, so that the back cover of the combination lock contacts the riveting fixing seat for riveting.

[0017] Optionally, the riveting movable sleeve is provided with a clearance hole, and a locking platform is provided at the opening of the clearance hole. The size of the locking platform corresponds to the size of the dial of the combination lock.

[0018] Optionally, the riveting fixing seat is provided with a riveting hole, and the riveting hole is provided with a riveting surface; the number of riveting holes is not less than one, and they are arranged concentrically.

[0019] Compared with the prior art, the present invention provides a combination lock riveting device, which has the following advantages:

[0020] This combination lock riveting device, through the arrangement of a rotating mechanism and multiple combination lock fixtures, allows for the setting of a loading station and a riveting station along the circumference of the rotating mechanism. By separating the loading station and the riveting station, the operator can install the combination lock onto the fixture while it is being riveted, enabling the riveting and loading of the combination lock to be carried out simultaneously. This shortens the installation and riveting time of the combination lock and improves the riveting effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the rotating mechanism of this utility model.

[0023] Figure 3 This is a structural schematic diagram of the rotary combination lock and combination lock fixture of this utility model.

[0024] Figure 4 This is a structural schematic diagram of the combination lock tooling of this utility model.

[0025] Figure 5 This is a structural schematic diagram of the combination lock tooling of this utility model from another perspective.

[0026] Figure 6 This is a schematic diagram of the structure of the lock base of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the lock sleeve of this utility model.

[0028] Figure 8 This is a schematic diagram of the rotating mechanism and riveting mechanism of this utility model.

[0029] Figure 9 This is a schematic diagram of the riveting mechanism of this utility model.

[0030] Figure 10 This is a structural schematic diagram of the riveting fixing seat of this utility model.

[0031] Figure 11This is a schematic diagram of the riveted movable sleeve of this utility model.

[0032] The diagram shows: 1. Workbench; 2. Rotating mechanism; 21. Mounting base; 22. Cam divider; 23. Rotary disk; 24. Rotation power source; 3. Combination lock fixture; 30. Fixture base; 31. First end block; 32. Second end block; 33. Connecting column; 331. Spring; 34. Sliding block; 35. Lock seat; 351. Groove; 352. Limiting platform; 353. Locking protrusion; 354. Limiting plate. 36. Lock sleeve; 361. Locking groove; 37. Locking slot; 371. Through slot; 372. Limiting slot; 373. Clearance slot; 374. Guide surface; 4. Riveting mechanism; 41. Riveting seat; 42. Riveting groove; 43. Riveting power source; 44. Connecting hole; 45. Riveting moving sleeve; 451. Clearance hole; 452. Snap-fit ​​platform; 46. Riveting fixing seat; 461. Riveting hole; 462. Riveting surface. Detailed Implementation

[0033] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, illustrates the present invention. Numerous specific details are set forth in the description below to provide a thorough understanding of the invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0034] The combination lock riveting device of this application can be used for riveting the back cover of a rotary combination lock, and of course it can also be used in other similar application scenarios. The following is a detailed description of a combination lock riveting device.

[0035] See appendix Figure 1 — Figure 11 The diagram shows a preferred embodiment of a combination lock riveting device according to this application. The combination lock riveting device includes a workbench, a rotating mechanism 2 mounted on the workbench 1, multiple combination lock fixtures 3 mounted on the rotating mechanism 2, and a riveting mechanism 4 mounted on the workbench 1 and located beside the rotating mechanism 2. The rotating mechanism 2 has a loading station and a riveting station in its circumferential direction, and the riveting mechanism 4 is located at the riveting station. The rotating mechanism 2 can drive the combination lock fixtures 3 to rotate at equal angles. After each rotation of the rotating mechanism 2, there are combination lock fixtures 3 at both the riveting station and the loading station, and the riveting direction of the riveting mechanism 4 is parallel to the ground.

[0036] This invention separates the feeding and riveting positions by setting a feeding station and a riveting station in the circumferential direction of the rotating mechanism 2, and by setting multiple combination lock fixtures 3. This allows the operator to install the combination lock to be riveted onto the combination lock fixture 3 located at the feeding station while the riveting mechanism 4 is riveting the back cover of the combination lock located at the riveting station. This allows the combination lock to be riveted to be fed at the same time as the riveting mechanism 4 is riveting, thus enabling the feeding and riveting of combination locks to be performed simultaneously within a certain time, thereby improving the riveting efficiency of combination locks.

[0037] See appendix Figure 1 and Figure 2 As shown, the rotating mechanism 2 includes a mounting base 21 mounted on the worktable 1, a cam divider 22 mounted on the mounting base 21, a rotating disk 23 mounted on the cam divider 22, and a rotating power source 24 mounted on the mounting base 21 and connected to the cam divider 22; multiple combination lock fixtures 3 are mounted on the rotating disk 23 and are installed at equal angles with the center of the rotating disk 23 as the rotation center.

[0038] This utility model uses a cam divider 22 to convert the continuous input motion provided by the rotary power source 24 into intermittent output motion, thereby achieving high-precision indexing and positioning; and uses a rotary disk 23 to provide installation positions for multiple combination lock fixtures 3; it should be noted that the rotary power source 24 is a motor.

[0039] See appendix Figure 3 — Figure 7 As shown, in this utility model, the combination lock fixture 3 includes a fixture base 30 installed on a rotating disk 23 in the rotating mechanism 2, a first end block 31 and a second end block 32 respectively installed on both ends of the fixture base 30, a connecting post 33 installed on the first end block 31 and the second end block 32, a sliding block 34 movably installed on the connecting post 33, a lock seat 35 installed on the sliding block 34, and a lock sleeve 36 installed on the lock seat 35. The lock sleeve 36 is provided with a lock groove 37 for installing the combination lock. It should be noted that the rotary combination lock is installed in the lock groove 37 by snap-fit, and the rotary combination lock is installed in the lock groove 37 in an upright state.

[0040] The present invention uses the first end block 31 and the second end block 32 to limit the two ends of the sliding block 34 and prevent the sliding block 34 from separating from the connecting post 33 during movement; the connecting post 33 is used to guide the movement of the sliding block 34; the lock seat 35 is used to provide an installation position for the lock sleeve 36; and the lock groove 37 is used to provide an installation position for the combination lock.

[0041] See appendix Figure 3 — Figure 5 As shown, in this invention, a spring 331 is fitted on the connecting post 33. One end of the spring 331 abuts against the sliding block 34, and the other end abuts against the second end block 32. When the combination lock is installed in the lock groove 37 at the loading station, and when the back cover of the combination lock is riveted by the riveting mechanism 4 at the riveting station, the sliding block 34 moves along the connecting post 33 toward the second end block 32, squeezing the spring 331. The spring 331 is used to push the sliding block 34 to reset after it moves along the connecting post 33, ensuring that the lock sleeve 36 does not interfere with the riveting mechanism 4 when it enters the riveting mechanism 4, and can reset and separate from the riveting mechanism 4 after the combination lock is riveted, ensuring that the lock sleeve 36 does not interfere with the riveting mechanism 4 when it leaves the riveting mechanism 4.

[0042] See appendix Figure 3 — Figure 7 As shown, in this utility model, the sliding block 34 is L-shaped; the lock seat is provided with a groove 351 corresponding to the lock sleeve 36, and a limiting platform 352 is provided in the groove 351. The lock sleeve 36 contacts the limiting platform 352. The groove 351 is provided with a locking protrusion 353, and the lock sleeve 36 is provided with a locking groove 361 corresponding to the locking protrusion 353. A limiting plate 354 that contacts the lock sleeve 36 is detachably installed at the opening of the groove 351.

[0043] This utility model effectively increases the installation area of ​​the lock seat 35 by setting the sliding block 34 in an L-shape, which facilitates the installation of the sliding block 34 and avoids interference between the bolts used to connect the sliding block 34 and the lock seat 35 and the connecting column 33. It should be noted that the sliding block 34 can also be formed by splicing multiple plates together using bolts, welding, or other connection methods. The groove 351 is used to provide installation conditions for the lock sleeve 36. The limiting platform 352 is used to limit the installation depth of the lock sleeve 36, making it easier to install the lock sleeve 36 in the groove 351. The locking protrusion 353 and locking groove 361 are used to limit the locking sleeve 36, preventing the locking sleeve 36 from rotating relative to the groove 351, ensuring that the relative positions of the combination locks on all combination lock fixtures 3 are the same, and ensuring that the riveting mechanism 4 can rivet the back cover on the combination lock fixture 3; the limiting plate 354 is used to limit the locking sleeve 36, preventing the locking sleeve 36 from sliding out of the groove 351, and facilitating the replacement of the locking sleeve 36, so that the locking sleeve 36 can be replaced with the corresponding lock groove 37 according to the size of the rotary combination lock.

[0044] See appendix Figure 7As shown, in this utility model, the lock groove 37 includes a through groove 371 disposed at the center of the lock sleeve 36, a limiting groove 372 disposed at the top of the through groove 371, an avoidance groove 373 connected to the through groove 371, and a guide surface 374 disposed at the opening of the through groove 371.

[0045] This invention, through the through slot 371, avoids obstructing the back cover of the combination lock, allowing the back cover area to contact the riveting mechanism 4 and ensuring that the riveting mechanism 4 can rivet the back cover. It should be noted that the through slot 371 is larger than the back cover. The limiting slot 372 limits the depth of the combination lock within the lock groove 37. It should be noted that the lock beam is located within the limiting slot 372, and the width of the limiting slot 372 corresponds to the width of the lock beam. When the combination lock is in the lock groove 37, the lock beam... The lock cannot move left or right due to the limitation of the limiting groove 372; the setting of the clearance groove 373, in conjunction with the setting of the clearance groove 373 connecting with the through groove 371, further increases the width of the through groove 371, making it easier for the operator to install the combination lock in the through groove 371; the setting of the guide surface 374 guides the edge of the lock body when the operator installs the combination lock in the through groove 371, making it easier for the operator to install the combination lock in the through groove 371, thereby improving the speed of the operator to load the combination lock and improving the riveting efficiency of the combination lock.

[0046] See appendix Figure 8 — Figure 11 As shown, in this utility model, the riveting mechanism 4 includes a riveting seat 41 mounted on the workbench 1, a riveting groove 42 on the riveting seat 41 corresponding to the combination lock fixture 3, a riveting power source 43 mounted on the riveting seat 41, a connecting hole 44 on the riveting seat 41 corresponding to the riveting power source 43, a riveting moving sleeve 45 mounted on the riveting power source 43 and located in the connecting hole 44, and a riveting fixing seat 46 mounted on the riveting seat 41 and located in the riveting groove 42.

[0047] This invention utilizes the riveting groove 42 to allow the combination lock fixture 3 to move to the riveting position in the riveting mechanism 4, ensuring that the combination lock and its back cover on the fixture 3 can be riveted together. The riveting power source 43 provides the necessary power for riveting the back cover; this power source 43 can be a pneumatic or electric cylinder. The connecting hole 44 allows the riveting moving sleeve 45 to contact the combination lock on the fixture 3, enabling it to move and contact the back cover with the riveting fixing seat 46 for riveting. The riveting fixing seat 46 is used to rivet the back cover of the combination lock.

[0048] See appendix Figure 8 — Figure 11 As shown, in this utility model, the combination lock on the combination lock fixture 3 located at the riveting station is positioned between the riveting fixed seat 46 and the riveting movable sleeve 45. During riveting, the riveting power source 43 drives the riveting movable sleeve 45 to move the combination lock, causing the back cover of the combination lock to contact the riveting fixed seat 46 for riveting. This utility model ensures that the riveting movable sleeve 45 can push the combination lock on the combination lock fixture 3 to move, allowing the back cover of the combination lock to contact the riveting fixed seat 46 for riveting, by confining the combination lock fixture 3 at the riveting station between the riveting fixed seat 46 and the riveting movable sleeve 45. This application also ensures that the riveting pressure generated by the riveting power source 43 is applied to the riveting seat 41 throughout the entire riveting process, preventing the riveting force from acting on the combination lock fixture 3 and protecting the combination lock fixture 3.

[0049] See appendix Figure 9 — Figure 11 As shown, in this utility model, the riveting movable sleeve 45 is provided with a clearance hole 451, and a locking platform 452 is provided at the opening of the clearance hole 451. The size of the locking platform 452 corresponds to the size of the dial of the combination lock. It should be noted that a rubber strip can be installed on the locking platform 452 to protect the dial combination lock.

[0050] This utility model uses the clearance hole 451 to avoid the turntable on the rotary combination lock, ensuring that the force of the riveting moving sleeve 45 is applied to the lock body of the rotary combination lock, and preventing the turntable of the rotary combination lock from being damaged by the riveting force during the riveting process.

[0051] See appendix Figure 9 and Figure 10 As shown, in this utility model, the riveting fixing seat 46 is provided with a riveting hole 461, and the riveting hole 461 is provided with a riveting surface 462. The number of riveting holes 461 is not less than one, and they are arranged concentrically. The diameters of the multiple riveting holes 461 are different, and the diameter of the riveting hole 461 decreases as the distance between the riveting hole 461 and the riveting moving sleeve 45 decreases.

[0052] See appendix Figure 1 — Figure 11 As shown, the riveting process of this utility model's combination lock is as follows:

[0053] First, the operator places the rotary combination lock whose back cover needs to be riveted into the lock slot 37 at the loading station. Then, the equipment is started, and the rotating power source 24 drives the rotating disk 23 to rotate at equal angles through the cam divider 22, so that the combination lock fixture 3 with the rotary combination lock is placed rotates at equal angles. Then, the operator installs another rotary combination lock that needs to be riveted into the lock slot 37 of the next combination lock fixture 3. This is repeated several times until the rotary combination lock that needs to be riveted moves to the riveting station. At this point, the riveting mechanism begins to rivet the back cover of the rotary combination lock. After the rotary combination lock is riveted, after the rotating disk 23 rotates multiple times, when the riveted combination lock rotates to the loading station, the operator first removes the riveted rotary combination lock and then places the rotary combination lock that needs to be riveted into the lock slot 37.

[0054] Specifically, before placing the rotary combination lock to be riveted into the lock slot 37, the operator will pre-install the back cover on the lock body of the rotary combination lock. This pre-installation method is existing technology, so it will not be described in detail here. When installing the rotary combination lock to be riveted into the lock slot 37, the operator only needs to align the lock body of the rotary combination lock to be riveted with the through slot 371 and insert it, and align the lock beam of the rotary combination lock with the limiting slot 372 and insert it. During riveting, the riveting power source 43 drives the riveting moving sleeve 45 to move. The dial of the rotary combination lock is inserted into the clearance hole 451. The edge of the rotary combination lock contacts the locking platform 452. The locking platform 452 pushes the rotary combination lock to move. The rotary combination lock drives the lock sleeve 36 to move. The lock sleeve 36 drives the lock seat 35 to move. The lock seat 35 drives the sliding block 34 to move along the connecting post 33 until the back of the rotary combination lock contacts the riveting surface 462 in the riveting hole 461. As the riveting moving sleeve 45 moves, the lock body of the rotary combination lock deforms inward along the riveting surface 462 to rivet the back cover.

[0055] The above embodiments are illustrative of this application and are not intended to limit this application. Any simple modifications to this application are within the protection scope of this application.

Claims

1. A combination lock riveting device, characterized in that, Includes a workbench (1), a rotating mechanism (2) mounted on the workbench (1), multiple combination lock fixtures (3) mounted on the rotating mechanism (2), and a riveting mechanism (4) mounted on the workbench (1) and located on the side of the rotating mechanism (2). The rotating mechanism (2) drives the combination lock fixture (3) to rotate at equal angles. A feeding station and a riveting station are provided along the circumference of the rotating mechanism (2). The riveting mechanism (4) is located on the riveting station. After each rotation of the rotating mechanism (2), there are combination lock fixtures (3) on both the riveting station and the loading station. The riveting direction of the riveting mechanism (4) is parallel to the ground.

2. The combination lock riveting device according to claim 1, characterized in that, The rotating mechanism (2) includes a mounting base (21) mounted on the workbench (1), a cam divider (22) mounted on the mounting base (21), a rotating disk (23) mounted on the cam divider (22), and a rotating power source (24) mounted on the mounting base (21) and connected to the cam divider (22); multiple combination lock fixtures (3) are mounted on the rotating disk (23) and are installed at equal angles with the center of the rotating disk (23) as the rotation center; The combination lock is installed upright on the combination lock fixture (3).

3. The combination lock riveting device according to claim 1, characterized in that, The combination lock fixture (3) includes a fixture base (30) mounted on a rotating mechanism (2), a first end block (31) and a second end block (32) mounted on both ends of the fixture base (30), a connecting post (33) mounted on the first end block (31) and the second end block (32), a sliding block (34) movably mounted on the connecting post (33), a lock seat (35) mounted on the sliding block (34), and a lock sleeve (36) mounted on the lock seat (35), the lock sleeve (36) having a lock groove (37) for installing the combination lock.

4. The combination lock riveting device according to claim 3, characterized in that, A spring (331) is fitted on the connecting column (33). One end of the spring (331) abuts against the sliding block (34), and the other end abuts against the second end block (32). When the combination lock is installed on the lock groove (37) and the upper riveting mechanism (4) rivets the back cover of the combination lock, the sliding block (34) will move along the connecting post (33) to the second end block (32) to compress the spring (331).

5. The combination lock riveting device according to claim 3, characterized in that, The sliding block (34) is L-shaped; The lock base (35) is provided with a groove (351) corresponding to the lock sleeve (36), and a limiting platform (352) is provided in the groove (351). The lock sleeve (36) contacts the limiting platform (352). The groove (351) is also provided with a locking protrusion (353). The lock sleeve (36) is provided with a locking groove (361) corresponding to the locking protrusion (353). A limiting plate (354) that contacts the lock sleeve (36) can be detachably installed at the groove opening of the groove (351).

6. The combination lock riveting device according to claim 3, characterized in that, The lock groove (37) includes a through groove (371) located at the center of the lock sleeve (36), a limiting groove (372) located at the top of the through groove (371), a clearance groove (373) connected to the through groove (371), and a guide surface (374) located at the opening of the through groove (371).

7. The combination lock riveting device according to claim 1, characterized in that, The riveting mechanism (4) includes a riveting seat (41) installed on the workbench (1), a riveting groove (42) on the riveting seat (41) corresponding to the combination lock fixture (3), a riveting power source (43) installed on the riveting seat (41), a connecting hole (44) on the riveting seat (41) corresponding to the riveting power source (43), a riveting moving sleeve (45) installed on the riveting power source (43) and located in the connecting hole (44), and a riveting fixing seat (46) installed on the riveting seat (41) and located in the riveting groove (42).

8. The combination lock riveting device according to claim 7, characterized in that, The combination lock on the combination lock fixture (3) located at the riveting station is located between the riveting fixed seat (46) and the riveting moving sleeve (45); During riveting, the riveting power source (43) drives the riveting moving sleeve (45) to push the combination lock to move, so that the back cover of the combination lock contacts the riveting fixing seat (46) for riveting.

9. The combination lock riveting device according to claim 7, characterized in that, The riveting movable sleeve (45) is provided with a clearance hole (451), and a locking platform (452) is provided at the opening of the clearance hole (451). The size of the locking platform (452) corresponds to the size of the dial of the combination lock.

10. The combination lock riveting device according to claim 7, characterized in that, The riveting fixing seat (46) is provided with a riveting hole (461), and a riveting surface (462) is provided inside the riveting hole (461). The number of the rivet holes (461) is not less than one, and they are arranged concentrically.

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