Semi-automatic horizontal spin riveting mechanism

Abstract

The utility model discloses a semi-automatic horizontal type spin riveting mechanism which comprises a rack, a limiting tool, a pressing tool and a riveting tool. The limiting tool is detachably arranged on the rack and used for positioning and placing a parking pull rod assembly; the pressing tool is arranged on the rack and located on the upper portion of the limiting tool so as to press the parking pull rod assembly on the limiting tool and reserve the riveting end of the parking pull rod, a control unit for controlling the pressing tool to be started and stopped is arranged on the rack, and the riveting tool is arranged on the rack and located on one side of the limiting tool. The downward pressing tool is provided with a pressure sensor used for sensing the downward pressing state, the riveting tool is provided with a displacement sensor used for sensing the riveting stroke, and the pressure sensor and the displacement sensor are both electrically connected with the control unit and used for achieving automatic riveting operation of the downward pressing tool and the riveting tool. According to the utility model, model changing is convenient, and rapid switching can be carried out among requirements of different clients; automation degree is high, and labor intensity of workers is reduced; the automation degree is high and the labor intensity of workers is reduced.

Description

Technical Field

[0001] This utility model relates to a semi-automatic horizontal riveting mechanism, belonging to the field of automotive parts processing technology. Background Technology

[0002] The parking system of an automotive transmission includes a parking lever assembly. This structure mainly consists of a parking lever, an elastic element, and a parking cone pin. One end of the parking lever has a positioning structure. The parking cone pin has a locking cap end and a pin end. The diameter of the locking cap end is larger than the diameter of the pin end, and it transitions to the pin end with a tapered surface. The elastic element and the parking cone pin can be sequentially fitted onto the outside of the parking lever from the end without the positioning structure. The parking lever assembly is mainly assembled by riveting. First, the parking lever is fixed to the riveting fixture using the positioning structure. Then, the elastic element and the parking cone pin are sequentially fitted onto the parking lever from the other end, pressing the elastic element between the locking cap end and the positioning structure. Finally, this end is riveted, increasing its diameter to limit the parking cone pin.

[0003] The riveting of the parking lever ends requires specialized riveting equipment. Existing riveting equipment typically includes a limiting structure and riveting fixtures. The parking lever assembly is positioned and fixed by the limiting structure, while a riveting end for riveting is reserved. The riveting fixture then rivets the end of the parking lever. The installation process of the parking lever assembly and the limiting structure usually requires manual labor. The process of reserving the riveting end requires manual pressing to make the parking taper overcome the elastic force of the elastic element. However, due to the large elastic force of the elastic element and the fast riveting process, workers experience high labor intensity and hand fatigue after riveting a small number of parking lever assemblies, resulting in a significant decrease in production efficiency.

[0004] Therefore, how to provide a parking tie rod assembly riveting and clamping fixture with high production efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a semi-automatic horizontal riveting mechanism. The pressing and positioning process of the parking tie rod assembly is completed by the machine, which is convenient and quick. Operators only need to assemble and place the parking tie rod assembly, which effectively improves the riveting production efficiency of the parking tie rod assembly.

[0006] To achieve the above-mentioned technical objectives and effects, this application provides the following technical solution:

[0007] A semi-automatic horizontal riveting mechanism includes a frame, a limiting fixture, a pressing fixture, and a riveting fixture. The limiting fixture is detachably mounted on the frame for positioning a parking lever assembly. The pressing fixture is mounted on the frame and located above the limiting fixture to press the parking lever assembly onto the limiting fixture and to allow for the riveting end of the parking lever. The frame is equipped with a control unit for controlling the opening and closing of the pressing fixture. The riveting fixture is mounted on the frame and located to one side of the limiting fixture. The pressing fixture has a pressure sensor for sensing the pressing state, and the riveting fixture has a displacement sensor for sensing the riveting stroke. Both the pressure sensor and the displacement sensor are electrically connected to the control unit to realize the pressing action. Automatic riveting operation of tooling and riveting fixture; the limiting fixture has a locking groove 1, a limiting groove and a locking groove 2 connected in sequence. The locking groove 1 is used to lock and fix the pin end of the parking cone pin. The locking groove 2 is used to lock and fix the end of the parking lever with the positioning structure. When the pin end and the parking lever are pressed and locked, the locking cap end of the parking cone pin and the positioning mechanism on the parking lever are both located in the limiting groove, so that the elastic element is in a compressed state. The parking lever extends out of the pin end to reserve the riveting part. The side wall of the locking groove 1 and the limiting groove is provided with a chamfered surface that matches the tapered surface on the parking cone pin. The chamfered surface is used to push the locking cap end of the parking cone pin toward the positioning structure during the pressing of the parking lever assembly.

[0008] Preferably, the pressing fixture includes a pressing block, a pressing rod, and a driving component. A bracket is provided on the frame. The driving component is mounted above the limiting fixture via the bracket. The pressing block is driven to rise and fall above the limiting fixture via the driving component. The pressing rod is mounted on the pressing block to release or press the parking lever assembly as the pressing block rises and falls. The pressure sensor is mounted on the end face of the pressing rod facing the limiting fixture.

[0009] Furthermore, the pressing rod is a screw and has a pressing block at one end facing the limiting tooling, and the pressing rod is screwed to the lower pressing block.

[0010] Furthermore, an elastic block is provided on the end face of the pressing rod facing the limiting fixture.

[0011] Furthermore, a positioning block is detachably provided on the frame, and at least one guide post is provided on the positioning block. A guide hole is provided on the pressing block to slide and cooperate with the guide post.

[0012] Preferably, the frame is provided with a guide rail, and a slider is slidably provided on the guide rail in a direction toward or away from the riveting fixture. The limiting fixture and the pressing fixture are both provided on the slider.

[0013] Preferably, the limiting fixture is detachably mounted on the frame by multiple bolts, and the frame is provided with threaded holes for screwing in with the bolts.

[0014] The semi-automatic horizontal riveting mechanism provided by this utility model has the following advantages:

[0015] 1. The semi-automatic horizontal riveting mechanism of this utility model allows operators to assemble and place the parking tie rod assembly and start the pressing tool, while the rest of the riveting work is completed automatically by the machine in one go. It is convenient, fast, and highly automated, reducing the labor intensity of employees while improving the production efficiency of parking tie rod assemblies.

[0016] 2. The limiting fixture of this utility model is detachable and easy to change, and can be quickly switched between different customer requirements.

[0017] 3. The semi-automatic horizontal riveting mechanism of this utility model allows for controllable product quality and reduces quality costs. Attached Figure Description

[0018] Figure 1 A schematic diagram of a semi-automatic horizontal riveting mechanism provided in Embodiment 1 of this utility model. Figure 1 ;

[0019] Figure 2 A schematic diagram of a semi-automatic horizontal riveting mechanism provided in Embodiment 1 of this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of a semi-automatic horizontal riveting mechanism provided in Embodiment 2 of this utility model;

[0021] In the picture:

[0022] 1-Frame; 2-Limiting fixture; 21-Snap-fit ​​groove one; 211-Chamfered surface; 22-Limiting groove; 23-Snap-fit ​​groove two; 3-Pressing fixture; 31-Pressing block; 311-Guide hole; 32-Pressing rod; 33-Drive component; 4-Riveting fixture; 5-Control unit; 6-Pressure sensor; 7-Displacement sensor; 8-Bracket; 9-Positioning block; 10-Guide post; 11-Elastic block; 12-Guide rail; 13-Slider; 14-Parking lever assembly; 141-Parking lever; 142-Elastic component; 143-Parking cone pin. Detailed Implementation

[0023] 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 utility model, and 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 protection scope of this utility model.

[0024] Example 1:

[0025] Reference Figure 1 and Figure 2 A semi-automatic horizontal riveting mechanism includes a frame 1, a limiting fixture 2, a pressing fixture 3, and a riveting fixture 4. The limiting fixture 2 is detachably mounted on the frame 1 by bolts for positioning the parking lever assembly 14. The frame 1 has threaded holes for bolt engagement, facilitating easy replacement of the limiting fixture 2 and allowing for quick switching between different customer requirements. The pressing fixture 3 is mounted on the frame 1 and located above the limiting fixture 2 to press the parking lever assembly 14 onto the limiting fixture 2, with the riveting end of the parking lever 141 pre-existing. A control unit 5 is mounted on the frame 1 to control the opening and closing of the pressing fixture 3. The riveting fixture 4 is mounted on the frame 1 and located above the limiting fixture 2. On one side of fixture 2, the pressing fixture 3 has a pressure sensor 6 for sensing the pressing state, and the riveting fixture 4 is a conventional riveting machine with a displacement sensor 7 for sensing the riveting stroke. Both the pressure sensor 6 and the displacement sensor 7 are electrically connected to the control unit 5 to realize the automatic riveting operation of the pressing fixture 3 and the riveting fixture 4. In this embodiment, the control unit 5 can be a PLC controller or an MCU control module. The main pressing state of the pressure sensor 6 includes the pressure sensor 6 being in a fully pressed and continuous state. The use of the pressure sensor 6 and the displacement sensor 7 and their connection with the control unit 5 are all existing technologies and will not be described in detail.

[0026] After the riveting operation is completed, the displacement sensor 7 senses that the processing is in place, the riveting fixture returns to the origin, the pressing fixture 3 releases the parts, and the parking lever assembly 14, which is fitted with a transition fit, makes it easy for the operator to remove the riveted parking lever assembly 14.

[0027] Reference Figure 1 and Figure 2 The limiting fixture 2 has a first locking groove 21, a limiting groove 22, and a second locking groove 23 connected in sequence. The first locking groove 21 is used for transitional engagement to fix the pin end of the parking cone pin 143. The second locking groove 23 is used for transitional engagement to fix the end of the parking lever 141 with a positioning structure. When the pin end and the parking lever 141 are press-fitted, the locking cap end of the parking cone pin 143 and the positioning mechanism on the parking lever 141 are both located in the limiting groove 22, so that the spring... When the elastic element 142 is in a compressed state, the parking lever 141 extends out of the pin end to leave a riveting part. The side wall of the snap groove 1 21 and the limiting groove 22 is provided with a chamfered surface 211 that matches the conical surface on the parking cone pin 143. During the press-fitting process of the parking lever assembly 14, the chamfered surface 211 is used to push the locking cap end of the parking cone pin 143 toward the direction close to the positioning structure, thereby causing the elastic element 142 to gradually change from a free state to a compressed state.

[0028] Reference Figure 1 and Figure 2 The pressing fixture 3 includes a pressing block 31, a pressing rod 32, and a driving component 33. A bracket 8 is welded and fixed on the frame 1. The driving component 33 is mounted above the limiting fixture 2 via the bracket 8. The pressing block 31 is driven to rise and fall above the limiting fixture 2 by the driving component 33. The pressing rod 32 is mounted on the pressing block 31 to release or press the parking lever assembly 14 as the pressing block 31 rises and falls. A pressure sensor 6 is mounted on the end face of the pressing rod 32 facing the limiting fixture 2. A positioning block 9 is detachably mounted on the frame 1 by bolts. At least one guide post 10 is mounted on the positioning block 9. The pressing block 31 has a guide hole 311 that slides and engages with the guide post 10, so that the pressing block 31 can press down stably. In feasible embodiments, the driving component 33 can be a hydraulic cylinder or a screw driven by a reciprocating motor. In this embodiment, the driving component 33 is preferably a hydraulic cylinder.

[0029] Furthermore, the pressing rod 32 is a screw and has a pressing block integrally formed on one end facing the limiting fixture 2. The pressing rod 32 is screwed to the lower pressing block 31, which is convenient for disassembly and assembly. At the same time, the height of the pressing rod 32 can be adjusted in time according to the compression stroke requirements. An elastic block 11 is glued and installed on the end face of the pressing rod 32 facing the limiting fixture 2. The elastic block 11 can be a sponge block or a rubber block. In this embodiment, the elastic block 11 is preferably a sponge block. The setting of the elastic block 11 can reduce the pressing wear caused by the pressing rod 32 on the surface of the parking tie rod assembly 14 during the pressing process.

[0030] Example 2:

[0031] Reference Figure 3 The difference between this embodiment and the first embodiment is that a guide rail 12 is fixedly installed on the frame 1 by bolts, and a slider 13 is slidably provided on the guide rail 12 in the direction of approaching or away from the riveting fixture 4. The limiting fixture 2 and the pressing fixture 3 are both installed on the slider 13. The distance between the slider and the riveting fixture 4 can be conveniently and quickly adjusted according to the riveting requirements of the parking lever 141, that is, the processing stroke can be adjusted. The slider 13 can be locked on the guide rail 12 by bolts to ensure the stable operation of the riveting operation.

[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A semi-automatic horizontal riveting mechanism, comprising a frame (1), characterized in that, It also includes a limiting fixture (2), a pressing fixture (3), and a riveting fixture (4). The limiting fixture (2) is detachably mounted on the frame (1) for positioning the parking lever assembly (14). The pressing fixture (3) is mounted on the frame (1) and located above the limiting fixture (2) to press the parking lever assembly (14) onto the limiting fixture (2) and to leave space for the riveting end of the parking lever (141). The frame (1) is provided with a control fixture (3). The control unit (5) for opening and closing, the riveting fixture (4) is set on the frame (1) and located on one side of the limiting fixture (2), the pressing fixture (3) has a pressure sensor (6) for sensing the pressing state, the riveting fixture (4) has a displacement sensor (7) for sensing the riveting stroke, the pressure sensor (6) and the displacement sensor (7) are both electrically connected to the control unit (5) to realize the automatic riveting operation of the pressing fixture (3) and the riveting fixture (4); The limiting fixture (2) has a first locking groove (21), a limiting groove (22), and a second locking groove (23) connected in sequence. The first locking groove (21) is used to lock and fix the pin end of the parking cone pin (143), and the second locking groove (23) is used to lock and fix the end of the parking lever (141) with a positioning structure. When the pin end and the parking lever (141) are pressed and locked, the locking cap end of the parking cone pin (143) and the positioning mechanism on the parking lever (141) are both located at the locking cap end of the parking cone pin (143) and the positioning mechanism on the parking lever (141). The limiting groove (22) keeps the elastic element (142) in a compressed state. The parking lever (141) extends out of the pin end to leave a riveting part. The side wall of the snap groove (21) connected to the limiting groove (22) is provided with a chamfered surface (211) that matches the tapered surface on the parking cone pin (143). The chamfered surface (211) is used to push the locking cap end of the parking cone pin (143) toward the positioning structure during the press-fitting process of the parking lever assembly (14).

2. The semi-automatic horizontal riveting mechanism as described in claim 1, characterized in that, The pressing fixture (3) includes a pressing block (31), a pressing rod (32), and a driving component (33). A bracket (8) is provided on the frame (1). The driving component (33) is mounted above the limiting fixture (2) via the bracket (8). The pressing block (31) is driven to rise and fall above the limiting fixture (2) via the driving component (33). The pressing rod (32) is mounted on the pressing block (31) to release or press the parking lever assembly (14) as the pressing block (31) rises and falls. The pressure sensor (6) is mounted on the end face of the pressing rod (32) facing the limiting fixture (2).

3. A semi-automatic horizontal riveting mechanism as described in claim 2, characterized in that, The pressing rod (32) is a screw and has a pressing block at one end facing the limiting tool (2). The pressing rod (32) is screwed to the lower pressing block (31).

4. A semi-automatic horizontal riveting mechanism as described in claim 2, characterized in that, The pressing rod (32) has an elastic block (11) on its end face facing the limiting fixture (2).

5. A semi-automatic horizontal riveting mechanism as described in claim 2, characterized in that, A positioning block (9) is detachably provided on the frame (1), and at least one guide post (10) is provided on the positioning block (9). A guide hole (311) is provided on the pressing block (31) to slide and cooperate with the guide post (10).

6. A semi-automatic horizontal riveting mechanism as described in claim 1, characterized in that, The frame (1) is provided with a guide rail (12), and a slider (13) is slidably provided on the guide rail (12) in the direction of approaching or away from the riveting fixture (4). The limiting fixture (2) and the pressing fixture (3) are both provided on the slider (13).

7. A semi-automatic horizontal riveting mechanism as described in claim 1, characterized in that, The limiting fixture (2) is detachably mounted on the frame (1) by multiple bolts, and the frame (1) is provided with threaded holes for screwing the bolts.

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