Pressing device for a check pin

Abstract

The utility model provides a kind of press-in device of stopper pin shaft, including workbench, first press-in mechanism, limiting mechanism, anti-overturning mechanism and second press-in mechanism, the first press-in mechanism, limiting mechanism, anti-overturning mechanism and second press-in mechanism are respectively installed on workbench, the limiting arm of stopper is set in the inside of the support of stopper, the support and limiting arm are fixedly limited on the work point position of workbench, the central axis of the first prefabricated hole of support coincides with the central axis of the second prefabricated hole of limiting arm, the first press-in mechanism is oppositely arranged with second press-in mechanism;The first press-in mechanism is used to press pin shaft into first prefabricated hole and second prefabricated hole;The limiting mechanism is used for fixedly pressing support and limiting arm of first press-in mechanism;The anti-overturning mechanism is used for pressing limiting arm;Second press-in mechanism and first press-in mechanism cooperate to realize the press-in of support and limiting arm.

Description

Technical Field

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

[0002] Limiters are key components in mechanical systems used to limit the range of motion of components, prevent overtravel, or achieve precise positioning. They are widely used in automobiles, construction machinery, smart homes, aerospace, and electronic equipment. Their core functions include constraining the extreme positions of moving components (such as brackets, pins, and limit arms) to prevent collisions with other components that could cause structural damage. Figure 1 As shown, the limit arm of the door limiter has a pin hole. The limit arm is mounted on the bracket by the cooperation of the pin shaft and the pin hole. In industrial assembly, the coaxiality of the pin shaft and the pin hole directly affects the connection accuracy of the door limiter, and it is necessary to align and connect them using positioning and installation tools.

[0003] A Chinese patent with publication number CN219211520U discloses a movable chain riveting device, which includes a riveting base plate and a sliding member. The riveting base plate is disposed on the table of a punch press, and the sliding member is slidably disposed on the riveting base plate. The sliding member is provided with a fixing part, which is configured to fix the chain. When the movable chain riveting device is working, the sliding member drives the chain to slide along the riveting base plate, and the punch of the punch press rivets the pins to each outer chain plate of the chain in sequence.

[0004] Most existing riveting devices are equipped with a riveting mechanism, but no fixed limiting structure is set. During the riveting process, the large impact force released by the riveting mechanism makes the matching between the pin and the pre-drilled hole of the workpiece less than ideal, thus affecting the connection accuracy of the limiter. Utility Model Content

[0005] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a riveting device for a limit pin.

[0006] According to the present invention, a riveting device for a limit pin includes a worktable, a first riveting mechanism, a limiting mechanism, an anti-tipping mechanism, and a second riveting mechanism. The first riveting mechanism, the limiting mechanism, the anti-tipping mechanism, and the second riveting mechanism are respectively installed on the worktable. The limiting arm of the limit pin is arranged inside the bracket of the limit pin. The bracket and the limiting arm are both fixedly limited at the working point of the worktable. The central axis of the first pre-drilled hole of the bracket coincides with the central axis of the second pre-drilled hole of the limiting arm. The first riveting mechanism and the second riveting mechanism are arranged opposite to each other. The first riveting mechanism is used to press the pin into the first pre-drilled hole and the second pre-drilled hole; The limiting mechanism is used to fix the first riveting mechanism's pressing bracket and limiting arm; The anti-tipping mechanism is used to press against the limiting arm; The second riveting mechanism works in conjunction with the first riveting mechanism to rivet the bracket and the limiting arm.

[0007] Preferably, a limiting groove is provided at the working point, and the bracket and the limiting arm are accommodated in the limiting groove.

[0008] Preferably, the limiting groove includes a first limiting groove and a second limiting groove, wherein the first limiting groove and the second limiting groove are orthogonally arranged; The first pre-formed hole and the second pre-formed hole are accommodated within the first limiting groove; The limiting arm extends outward from the first limiting groove along the second limiting groove.

[0009] Preferably, the first riveting mechanism includes a first cylinder, a first guide rod, a limiting rod, and a fixing plate. The output end of the first cylinder is connected to one end of the limiting rod, and the other end of the limiting rod is connected to one end of the first guide rod. The other end of the first guide rod is provided with a first punch. The first punch includes a first cylindrical head, the central axis of which coincides with the central axes of the first pre-drilled hole and the second pre-drilled hole; The limiting rod is provided with a limiting hole, and the fixing plate is detachably installed on the limiting rod. The limiting hole cooperates with the fixing plate to fix the limiting mechanism.

[0010] Preferably, the fixing plate is provided with a through hole, and the limiting rod passes through the through hole, allowing the fixing plate to move along the limiting rod.

[0011] Preferably, the second riveting mechanism includes a second cylinder and a second guide rod, the output end of the second cylinder is connected to one end of the second guide rod, and the other end of the second guide rod is provided with a second punch; The second punch includes a second cylindrical head, the central axis of which coincides with the central axes of the first pre-drilled hole and the second pre-drilled hole.

[0012] Preferably, the limiting mechanism includes a third cylinder and a third guide rod, the output end of the third cylinder is connected to one end of the third guide rod, and the other end of the third guide rod includes a fixing rod; The limiting hole cooperates with the fixing plate to fix the fixing rod.

[0013] Preferably, the insertion hole includes a square hole, the fixing rod includes a square rod, and the square rod is connected to the square hole.

[0014] Preferably, the anti-tipping mechanism includes a fourth cylinder, a triangular plate, and a pressure head. The output end of the fourth cylinder is hinged to the first corner of the triangular plate, the second corner of the triangular plate is hinged to the worktable, and the pressure head is hinged to the third triangle of the triangular plate. The first triangle of the triangle is positioned above the working point.

[0015] Preferably, the second corner of the triangular plate is hinged to the workbench via a fixing frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model sets up a limiting mechanism and an anti-tipping mechanism. The limiting mechanism is used to fix and limit the first riveting mechanism, and the anti-tipping mechanism is used to fix the limiting arm. After the first riveting mechanism is fixed and limited, it can cooperate with the second riveting mechanism when the second riveting mechanism is riveting. At the same time, the pressed limiting arm is fixed, which is beneficial to improve the connection accuracy of the pin and the pre-made hole during the riveting process, thereby improving the connection accuracy of the limiter. 2. This utility model provides a limiting hole and a fixing plate in the first riveting mechanism. The limiting hole and the fixing plate are used to limit the connection of the limiting mechanism. The position of the fixing plate is adjustable, which is beneficial to adjusting the position of the first riveting mechanism against the support and the limiting arm. It is also beneficial to adjust the working position of the first riveting mechanism and the pin according to the size and specifications of the limiter. 3. The riveting device formed by the first riveting mechanism, the limiting mechanism, the anti-tipping mechanism and the second riveting mechanism of this utility model improves the riveting efficiency, saves costs, and the riveting device is not easy to damage the coating on the surface of the workpiece, thereby ensuring the corrosion resistance of the workpiece. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram illustrating the main structure of the limiter in this utility model; Figure 2 This is a three-dimensional structural diagram of the riveting device, which is the main feature of this utility model. Figure 3 This is a top view of the riveting device, which is the main feature of this utility model. Figure 4 This is a front view schematic diagram of the main riveting device of this utility model; Figure 5 This is a schematic diagram illustrating the structure of the limiting groove accommodating the limiting device, which is the main feature of this utility model. Figure 6 This is a schematic diagram of the structure of the first riveting mechanism, which is the main feature of this utility model. Figure 7This is a schematic diagram illustrating the connection between the first riveting mechanism and the limiting mechanism, which is the main structural feature of this utility model. Figure 8 This is a schematic diagram illustrating the structure of the anti-tipping mechanism, which is the main feature of this utility model. Figure 9 This is a schematic diagram of the structure of the limiter that mainly embodies the function of the first riveting mechanism and the anti-tipping mechanism of this utility model; Figure 10 This is a schematic diagram of the structure of the second riveting mechanism, which is the main feature of this utility model.

[0018] In the picture: First riveting mechanism 1; First cylinder 11; First guide rod 12; Limiting rod 13; Limiting hole 14; Fixed plate 15; First punch 16; Second riveting mechanism 2; Second cylinder 21; Second guide rod 22 Second punch 23; Limiting mechanism 3; Third cylinder 31; Third guide rod 32; Fixing rod 33 Anti-tipping mechanism 4; Fourth cylinder 41; Triangular plate 42; Pressure head 43; Fixing frame 44; Workbench 5; Limiting groove 51; First limiting groove 511; Second limiting groove 512; Limiter 6; Bracket 61; Limit arm 62; Pin 63 Detailed Implementation The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0019] like Figures 2 to 4As shown, a riveting device for a limit pin provided by this utility model includes a worktable 5, a first riveting mechanism 1, a limiting mechanism 3, an anti-tipping mechanism 4, and a second riveting mechanism 2. The first riveting mechanism 1, the limiting mechanism 3, the anti-tipping mechanism 4, and the second riveting mechanism 2 are respectively installed on the worktable 5. The limiting arm 62 of the limiter 6 is disposed inside the bracket 61 of the limiter 6. Both the bracket 61 and the limiting arm 62 are fixedly limited at the working point of the worktable 5. The central axis of the first pre-drilled hole 61 coincides with the central axis of the second pre-drilled hole of the limiting arm 62. The first riveting mechanism 1 and the second riveting mechanism 2 are arranged opposite to each other. The first riveting mechanism 1 is used to press the pin 63 into the first pre-drilled hole and the second pre-drilled hole. The limiting mechanism 3 is used to fix the first riveting mechanism 1 to press against the bracket 61 and the limiting arm 62. The anti-tipping mechanism 4 is used to press against the limiting arm 62. The first riveting mechanism 1 and the second riveting mechanism 2 cooperate to realize the riveting of the bracket 61 and the limiting arm 62.

[0020] The limiting arm 62, bracket 61, and pin 63 are respectively set at the working points of the workbench 5. The bracket 61 has a first pre-drilled hole, and the limiting arm 62 has a second pre-drilled hole. The central axis of the first pre-drilled hole and the central axis of the second pre-drilled hole are arranged to coincide. Generally, the diameter of the first pre-drilled hole and the diameter of the second pre-drilled hole are equal, so that the first pre-drilled hole and the second pre-drilled hole are connected to form a hole. One end of the pin 63 is pre-push into the first pre-drilled hole, and the diameter of the pin 63 is slightly larger than the diameter of the first pre-drilled hole. The first riveting mechanism 1 pushes the other end of the pin 63 to perform riveting. One end of the pin 63 continues to pass through the first pre-drilled hole and the second pre-drilled hole. When one end of the pin 63 passes through the second pre-drilled hole and the first pre-drilled hole in sequence, the limiting mechanism 3 limits the first riveting mechanism 1 to prevent the first riveting mechanism 1 from having backward displacement during the riveting process of the second riveting mechanism 2. The anti-tipping mechanism 4 presses the limiting arm 62 to prevent the limiting arm 62 from tipping over during the riveting process of the second riveting mechanism 2, which would affect the riveting. The first riveting mechanism 1 is fixed and limited, and the second riveting mechanism 2 acts on one end of the pin 63. The first riveting mechanism 1 and the second riveting mechanism 2 press against both ends of the pin 63 respectively to achieve the riveting of the limiter 6.

[0021] Specifically, such as Figure 5As shown, a limiting groove 51 is provided at the working point, and the bracket 61 and the limiting arm 62 are accommodated within the limiting groove 51. The limiting groove 51 may include a first limiting groove 511 and a second limiting groove 512, which are orthogonally arranged. A first pre-drilled hole and a second pre-drilled hole are accommodated within the first limiting groove 511, and the limiting arm 62 extends outward from the first limiting groove 511 along the second limiting groove 512. One feasible implementation is as follows: the middle part of the first limiting groove 511 is orthogonal to one end of the second limiting groove 512; one end of the bracket 61 and the limiting arm 62 with the second pre-drilled hole is accommodated within the first limiting groove 511; the other end of the limiting arm 62 extends outward from the first limiting groove 511 along the second limiting groove 512; the length of the bracket 61 is distributed along the length direction of the first limiting groove 511; and the bracket 61 is limited within the first limiting groove 511.

[0022] Specifically, such as Figure 6 and Figure 7 As shown, the first riveting mechanism 1 includes a first cylinder 11, a first guide rod 12, a limiting rod 13, and a fixing plate 15. The first cylinder 11 is bolted to the worktable 5. The output end of the first cylinder 11 is connected to one end of the limiting rod 13, and the other end of the limiting rod 13 is connected to one end of the first guide rod 12. The other end of the first guide rod 12 is provided with a first punch 16, which is preferably a first cylindrical head. The diameter of the first cylindrical head is larger than the diameter of the pin 63, and the central axis of the first cylindrical head coincides with the central axes of the first pre-drilled hole and the second pre-drilled hole. When the first cylinder 11 is started, it drives the first guide rod 12 to move. The movement of the first guide rod 12 causes the first punch 16 to press against the pin 63, and the pin 63 is pressed into the first pre-drilled hole and the second pre-drilled hole.

[0023] More specifically, the limiting rod 13 is provided with a limiting hole 14, and the fixing plate 15 is detachably installed on the limiting rod 13. The limiting hole 14 cooperates with the fixing plate 15 to fix the limiting mechanism 3. The fixing plate 15 is provided with a through hole, and the limiting rod 13 passes through the through hole, allowing the fixing plate 15 to move along the limiting rod 13. The fixing plate 15 is detachably installed on the limiting rod 13, and the fixing rod 33 can move on the limiting rod 13. The position of the fixing rod 33 on the limiting rod 13 can be adjusted to match the limiting mechanism 3 and meet the requirement of the limiting mechanism 3 to limit the first riveting mechanism 1. At the same time, the working position of the first riveting mechanism 1 and the pin 63 can be adjusted according to the size and specifications of the limiter 6.

[0024] Specifically, such as Figure 7As shown, the limiting mechanism 3 includes a third cylinder 31 and a third guide rod 32. The third cylinder 31 is bolted to the worktable 5. The output end of the third cylinder 31 is connected to one end of the third guide rod 32. The other end of the third guide rod 32 includes a fixing rod 33. The limiting hole 14 cooperates with the fixing plate 15 to fix the fixing rod. The limiting hole 14 and the fixing plate 15 cooperate to form an insertion hole. The insertion hole is tightly connected to the fixing rod. The central axis of the insertion hole coincides with the central axis of the fixing rod 33. The limiting hole 14 and the insertion hole are preferably square holes. The fixing rod 33 is preferably a square rod. The square rod and the square hole are connected to each other, which is conducive to fixing the fixing rod 33, thereby facilitating the fixing of the first riveting mechanism 1. The third cylinder 31 is activated, which drives the third guide rod 32 to move. The third guide rod 32 drives the fixed rod 33 to insert into the insertion hole. The fixed rod 33 cooperates with the insertion hole to limit the limiting rod 13 of the first riveting mechanism 1, thereby fixing and limiting the first punch 16, so that the first punch 16 does not move backward when the second riveting mechanism 2 is working.

[0025] Specifically, such as Figure 8 and Figure 9 As shown, the anti-tipping mechanism 4 includes a fourth cylinder 41, a triangular plate 42, and a pressure head 43. The fourth cylinder 41 is bolted to the worktable 5. The output end of the fourth cylinder 41 is hinged to the first corner of the triangular plate 42, and the second corner of the triangular plate 42 is hinged to the worktable 5. The pressure head 43 is hinged to the third triangle of the triangular plate 42. The third triangle of the triangular plate 42 is positioned above the working point. The second corner of the triangular plate 42 is hinged to the worktable 5 via a fixing frame 44. When the fourth cylinder 41 is activated, it drives the triangular plate 42 to move. Since the first corner of the triangular plate 42 is hinged to the output end of the fourth cylinder 41, and the second corner of the triangular plate 42 is hinged to the fixing frame 44, two of the three corner points of the triangular plate 42 control the third corner point to move downwards until the pressure head 43 presses against the limiting arm 62, preventing the limiting arm 62 from tipping over during the riveting process.

[0026] Specifically, such as Figure 10 As shown, the second riveting mechanism 2 includes a second cylinder 21 and a second guide rod 22. The second cylinder 21 is bolted to the worktable 5. The output end of the second cylinder 21 is connected to one end of the second guide rod 22. The other end of the second guide rod 22 is provided with a second punch 23. The second punch 23 is preferably a second cylindrical head. The diameter of the second cylindrical head is larger than the diameter of the pin 63. The central axis of the second cylindrical head coincides with the central axes of the first pre-drilled hole and the second pre-drilled hole. When the second cylinder 21 is activated, it drives the second guide rod 22 to move. The movement of the second guide rod 22 causes the second punch 23 to press against one end of the pin 63 that passes through the first pre-drilled hole and the second pre-drilled hole. At the same time, the first punch 16 presses against the other end of the pin 63 to keep it fixed. One end of the pin 63 is pressed into a mushroom-shaped structure under the action of the second punch 23.

[0027] During operation, the limiting arm 62, bracket 61, and pin 63 of the limiter 6 are placed in the designated positions. First, the first cylinder 11 is activated, and the first riveting mechanism 1 pushes the pin 63 into the bracket 61 and the limiting arm 62. One end of the pin 63 protrudes from the limiting arm 62 and the bracket 61. Then, the third cylinder 31 is activated, and the limiting mechanism 3 fixes and limits the first riveting mechanism 1. Next, the fourth cylinder 41 is activated, and the anti-tipping mechanism 4 prevents the limiting arm 62 from tipping over. Then, the second cylinder 21 is activated, and the second riveting mechanism 2 performs the riveting operation. After riveting is completed, the second cylinder 21, the fourth cylinder 41, the third cylinder 31, and the first cylinder 11 are activated in sequence to remove the second riveting mechanism 2, the tipping mechanism, the limiting mechanism 3, and the first riveting mechanism 1, thus preparing for the riveting operation of the next limiter 6. One feasible implementation method is as follows: a control box is set up, which is connected to the electrical control of the second riveting mechanism 2, the side tilting mechanism, the limit mechanism 3 and the first riveting mechanism 1 respectively. One-button start is set up, and the four cylinders will start in sequence to realize the automatic riveting of the riveting device; at the same time, each cylinder is equipped with a manual start button, so that the start of the four cylinders can also be manually controlled.

[0028] Compared to rotary riveting devices, the press-fit riveting device of this invention is faster. Rotary riveting devices continuously roll the circumference of the workpiece through the eccentric rotation of the riveting head, which takes a longer time. The press-fit riveting device directly presses the workpiece, similar to a punch press, simply pressing the part in, making operation relatively simple. The press-fit riveting device can perform multiple operations per minute, is relatively simple to operate, easy for workers to use, saves time and costs, and improves work efficiency. During the press-fit riveting process, it is less likely to damage the coating on the surface of the part, thus ensuring the corrosion resistance of the part.

[0029] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this application.

[0030] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A riveting device for a limit pin, characterized in that, The device includes a worktable (5), a first riveting mechanism (1), a limiting mechanism (3), an anti-tipping mechanism (4), and a second riveting mechanism (2). The first riveting mechanism (1), the limiting mechanism (3), the anti-tipping mechanism (4), and the second riveting mechanism (2) are respectively installed on the worktable (5). The limiting arm of the limiting device (6) is set inside the bracket of the limiting device. The bracket and the limiting arm are both fixedly limited to the working point of the worktable (5). The central axis of the first pre-drilled hole of the bracket coincides with the central axis of the second pre-drilled hole of the limiting arm. The first riveting mechanism (1) and the second riveting mechanism (2) are arranged opposite to each other. The first riveting mechanism (1) is used to press the pin into the first pre-drilled hole and the second pre-drilled hole; The limiting mechanism (3) is used to limit the first riveting mechanism (1) from pressing against the bracket and the limiting arm; The anti-tipping mechanism (4) is used to press against the limiting arm; The second riveting mechanism (2) works in conjunction with the first riveting mechanism (1) to rivet the bracket and the limiting arm.

2. The riveting device for the limit pin as described in claim 1, characterized in that, A limiting groove (51) is provided at the working point, and the bracket and the limiting arm are accommodated in the limiting groove (51).

3. The riveting device for the limit pin as described in claim 2, characterized in that, The limiting groove (51) includes a first limiting groove (511) and a second limiting groove (512), wherein the first limiting groove (511) and the second limiting groove (512) are orthogonally arranged; The first pre-drilled hole and the second pre-drilled hole are accommodated within the first limiting groove (511); The limiting arm extends outward from the first limiting groove (511) along the second limiting groove (512).

4. The riveting device for the limit pin as described in claim 1, characterized in that, The first riveting mechanism (1) includes a first cylinder (11), a first guide rod (12), a limiting rod (13), and a fixing plate (15). The output end of the first cylinder (11) is connected to one end of the limiting rod (13), and the other end of the limiting rod (13) is connected to one end of the first guide rod (12). The other end of the first guide rod (12) is provided with a first punch (16). The first punch (16) includes a first cylindrical head, the central axis of which coincides with the central axes of the first pre-drilled hole and the second pre-drilled hole; The limiting rod (13) is provided with a limiting hole (14), and the fixing plate (15) is detachably installed on the limiting rod (13). The limiting hole (14) and the fixing plate (15) cooperate to fix the limiting mechanism (3).

5. The riveting device for the limit pin as described in claim 4, characterized in that, The fixing plate (15) is provided with a through hole, and the limiting rod (13) passes through the through hole. The through hole allows the fixing plate (15) to move along the limiting rod (13).

6. The riveting device for the limit pin as described in claim 1, characterized in that, The second riveting mechanism (2) includes a second cylinder (21) and a second guide rod (22). The output end of the second cylinder (21) is connected to one end of the second guide rod (22), and the other end of the second guide rod (22) is provided with a second punch (23). The second punch (23) includes a second cylindrical head, the central axis of which coincides with the central axis of the first pre-drilled hole and the second pre-drilled hole.

7. The riveting device for the limit pin as described in claim 4, characterized in that, The limiting mechanism (3) includes a third cylinder (31) and a third guide rod (32). The output end of the third cylinder (31) is connected to one end of the third guide rod (32), and the other end of the third guide rod (32) includes a fixing rod (33). The limiting hole (14) cooperates with the fixing plate (15) to fix the fixing rod (33).

8. The riveting device for the limit pin as described in claim 7, characterized in that, The limiting hole (14) includes a square hole, and the fixing rod (33) includes a square rod, which is connected to the square hole.

9. The riveting device for the limit pin as described in claim 1, characterized in that, The anti-tipping mechanism (4) includes a fourth cylinder (41), a triangular plate (42) and a pressure head (43). The output end of the fourth cylinder (41) is hinged to the first corner of the triangular plate (42), the second corner of the triangular plate (42) is hinged to the worktable (5), and the pressure head (43) is hinged to the third triangle of the triangular plate (42). The first triangle of the triangle plate (42) is positioned above the working point.

10. The riveting device for the limit pin as described in claim 9, characterized in that, The second corner of the triangular plate (42) is hinged to the workbench (5) by a fixing frame (44).

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