Input hub pressing tool

Abstract

The utility model discloses an input hub pressing tool, and relates to the technical field of driving disc subassembly welding, the input hub pressing tool comprises a tool body and further comprises a limiting mechanism arranged on the inner side of the bottom of the tool body, the limiting mechanism comprises a fixing ring arranged on the inner side of the bottom of the tool body, three supporting plates are installed on the outer wall of the fixing ring at equal intervals, and the supporting plates are arranged on the inner side of the bottom of the tool body. The outer sides of the three supporting plates are all sleeved with clamping plates, a fastening bolt is arranged between one clamping plate and the inner wall of the tool body, and guiding bosses are fixedly installed at the bottoms of the three clamping plates. The fastening bolts penetrate through the mounting holes and are in threaded connection with the inner walls of the adjacent connecting holes, the guide bosses can be fixed, the input rotating hub can be pressed through connection between the guide bosses and the inner hole of the input rotating hub, the input rotating hub is stressed more evenly in the welding process, and the welding quality is improved. And the phenomenon that raw materials are wasted easily due to unstable end jump of the driving disc relative to the input rotating hub after welding can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of drive disc subassembly welding technology, specifically to an input wheel hub clamping fixture. Background Technology

[0002] The drive disc subassembly is an important component in an automobile's transmission system. Its main function is to transmit power generated by the engine to the drive wheels, enabling the vehicle to move. The drive disc subassembly typically includes a drive shaft and a driven shaft, which are connected together via a universal joint or intermediate support. One end of the drive shaft is connected to the engine flywheel or clutch, and the other end of the driven shaft is connected to the drive wheel. During the welding process of the drive disc subassembly, the upper tooling presses down to close the mold, holding the part in place. A lower servo rotates, causing the lower tooling, the part, and the upper tooling to rotate synchronously.

[0003] The existing technology has the following shortcomings: The bottom surface of the existing input hub clamping fixture is smooth, and when it contacts the input hub, the plane is plane to plane. During the rotation after clamping, the input hub clamping fixture is prone to swinging and offset, which makes the force on the input hub uneven. As a result, after welding, the end runout of the drive disc relative to the input hub is unstable and the level is unstable, resulting in about 3% of the process scrap, which increases the scrap cost and wastes raw material costs. Utility Model Content

[0004] The purpose of this invention is to provide an input hub clamping fixture, which can clamp the input hub by connecting the guide boss with the inner hole of the input hub, so that the force is more even during the welding process, thereby solving the above-mentioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an input hub clamping fixture, comprising a fixture body, and further comprising:

[0006] A limiting mechanism located on the inner bottom of the tooling body is used to guide and limit the input hub.

[0007] The limiting mechanism includes a fixing ring disposed on the inner side of the bottom of the tooling body. Three support plates are installed at equal intervals on the outer wall of the fixing ring. Each of the three support plates is movably sleeved with a snap-fit ​​plate. A fastening bolt is provided between one of the snap-fit ​​plates and the inner wall of the tooling body. A guide boss is fixedly installed at the bottom of the three snap-fit ​​plates.

[0008] Preferably, the tooling body includes a clamping plate, a fixing rod is fixedly installed on the top of the clamping plate, and a limiting groove is formed on the outer wall of one end of the fixing rod.

[0009] Preferably, a movable rod is movably sleeved on the outer side of the fixed rod, and a slider is fixedly installed on the inner wall of one end of the movable rod, with the outer wall of the slider movably connected to the inner wall of the limiting groove.

[0010] Preferably, the outer wall of one end of the fixed rod is provided with a plurality of adjustment holes at equal intervals, and the bottom of one end of the movable rod is provided with a fixing hole. A connecting bolt is threaded into the inner wall of the fixing hole, and the end of the connecting bolt away from the fixing hole is threadedly connected to the inner wall of the adjacent adjustment hole.

[0011] Preferably, the bottom of the clamping plate is fixedly connected to the fixing ring, and an installation hole is provided on the outer wall of one end of the clamping plate, with a fastening bolt threaded into the inner wall of the installation hole.

[0012] Preferably, the inner walls of the three snap-fit ​​plates are provided with connection holes, and the inner wall of one of the connection holes is threadedly connected to the outer wall of the end of the fastening bolt away from the mounting hole.

[0013] Preferably, both the support plate and the snap-fit ​​plate have a fan-shaped cross-section when viewed from above, and the height of the fixing ring is the same as the height of the snap-fit ​​plate.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] The guide boss is installed on the bottom of the fixing ring by attaching the snap-fit ​​plate to the outside of the support plate. The fastening bolt passes through the mounting hole and is threaded to the inner wall of the adjacent connecting hole, so that the guide boss can be installed on the bottom of the tooling body. Then, the guide boss extends into the inner hole of the input hub. The clamping plate and the guide boss can stably clamp the input hub, which can prevent the tooling body from shifting during rotation. At the same time, it makes the force on the input hub more even during rotation, thus making the end jump between the welded drive plate and the input hub more stable.

[0016] By moving the fixed rod inside the movable rod, the correspondence between multiple adjustment holes and the fixed hole can be changed. At the same time, the connection between the limiting groove and the slider can limit the movement of the fixed rod, so that the fixed rod remains stable during the movement. The connecting bolt passes through the fixed hole and is threaded to the inner wall of the adjacent adjustment hole, which can fix the adjusted fixed rod. Thus, the length of the tooling body can be easily adjusted according to the needs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 This is a front vertical sectional view of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged view of part A.

[0021] Figure 4 This is an exploded view of the tooling body of this utility model.

[0022] Figure 5 This is an exploded view of the limiting mechanism of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] Tooling body; 101, clamping plate; 102, fixing rod; 103, adjusting hole; 104, limiting groove; 105, movable rod; 106, slider; 107, fixing hole; 108, connecting bolt; 109, mounting hole;

[0025] 2. Limiting mechanism; 201. Fixing ring; 202. Support plate; 203. Snap-fit ​​plate; 204. Guide boss; 205. Connecting hole; 206. Fastening bolt. Detailed Implementation

[0026] This utility model provides, for example Figure 1 The illustrated input hub clamping fixture includes a fixture body 1 and a limiting mechanism 2 disposed on the inner side of the bottom of the fixture body 1 for guiding and limiting the input hub.

[0027] To ensure the input hub remains stable during rotation, such as Figure 1-3 and Figure 5 As shown, the limiting mechanism 2 includes a fixing ring 201 disposed on the inner side of the bottom of the tooling body 1. Three support plates 202 are installed at equal intervals on the outer wall of the fixing ring 201. A snap-fit ​​plate 203 is movably sleeved on the outer side of each of the three support plates 202. A fastening bolt 206 is provided between one of the snap-fit ​​plates 203 and the inner wall of the tooling body 1. A guide boss 204 is fixedly installed on the bottom of the three snap-fit ​​plates 203. The snap-fit ​​plate 203 is inserted into the gap between the fixing ring 201 and the tooling body 1 through the gap between two adjacent support plates 202. Then, the guide boss 204 is rotated so that the three snap-fit ​​plates 203 can be sleeved on the outer side of the three support plates 202, thereby making the guide boss 204 tightly connected to the fixing ring 201. Then, the fastening bolt 206 is used to penetrate the inner wall of the tooling body 1 and tightly connect with the inner wall of the adjacent snap-fit ​​plate 203, so that the tooling body 1 is tightly connected to the limiting mechanism 2.

[0028] In order to enable the height of the tooling body 1 to be adjusted according to requirements, such as Figure 1-2 and Figure 4As shown, the tooling body 1 includes a clamping plate 101. A fixing rod 102 is fixedly installed on the top of the clamping plate 101. A limiting groove 104 is formed on the outer wall of one end of the fixing rod 102. A movable rod 105 is movably sleeved on the outer side of the fixing rod 102. A slider 106 is fixedly installed on the inner wall of one end of the movable rod 105. The outer wall of the slider 106 is movably connected to the inner wall of the limiting groove 104. A plurality of adjusting holes 103 are equally spaced on the outer wall of one end of the fixing rod 102. A fixing hole 107 is formed at the bottom of one end of the movable rod 105. A connecting bolt 108 is threaded into the inner wall of the fixing hole 107. The end of the connecting bolt 108 away from the fixing hole 107 is threaded to the inner wall of the adjacent adjusting hole 103. The movable rod 105 moves along the inner wall of the limiting groove 104 via the slider 106, allowing it to move outside the fixing rod 102. This changes the correspondence between the fixing hole 107 and multiple adjusting holes 103, thus allowing for convenient adjustment of the height of the tooling body 1 according to requirements. The connecting bolt 108 passes through the fixing hole 107 and is threaded to the inner wall of the adjacent adjusting hole 103, which can fix the adjusted movable rod 105.

[0029] In order to ensure a stable connection between the limiting mechanism 2 and the tooling body 1, such as Figure 2-5 As shown, the bottom of the clamping plate 101 is fixedly connected to the fixing ring 201. A mounting hole 109 is provided on the outer wall of one end of the clamping plate 101, and a fastening bolt 206 is threaded into the inner wall of the mounting hole 109. Each of the three snap-fit ​​plates 203 has a connecting hole 205 on its inner wall. The inner wall of one of the connecting holes 205 is threaded to the outer wall of the end of the fastening bolt 206 furthest from the mounting hole 109. The support plate 202 and the snap-fit ​​plates 203 have a fan-shaped cross-section when viewed from above. The height of the fixing ring 201 is the same as the height of the snap-fit ​​plates 203. The clamping plate 101 and the fixing ring 201... The gap width between 01 is the same as the width of the snap-fit ​​plate 203. By inserting the three snap-fit ​​plates 203 into the gap between two adjacent support plates 202, and then rotating the guide boss 204, the three snap-fit ​​plates 203 can be fitted onto the outer side of the three support plates 202 respectively, so that one of the connecting holes 205 is aligned with the mounting hole 109. Then, the fastening bolt 206 is used to pass through the mounting hole 109 and is threaded to the inner wall of the adjacent connecting hole 205, so that the guide boss 204 can be stably installed on the bottom of the pressure plate 101.

[0030] During the welding of the drive disc sub-assembly, the downward pulling of the clamping plate 101 allows the fixing rod 102 to move downward along the outer wall of the slider 106 through the limiting groove 104. This allows the fixing rod 102 to extend downward from inside the movable rod 105, thereby changing the correspondence between the multiple adjusting holes 103 and the fixing holes 107. This allows for convenient adjustment of the length of the tooling body 1 according to requirements. Then, the connecting bolt 108 is used to pass through the fixing hole 107 and threadedly connect to the inner wall of the adjacent adjusting hole 103 to fix the adjusted fixing rod 102. At the same time, the guide boss 204 is installed onto the clamping plate 10. 1. At the bottom, three snap-fit ​​plates 203 can be inserted into the gap between the fixing ring 201 and the clamping plate 101 and are located in the gap between two adjacent support plates 202. Then, by rotating the guide boss 204, the three snap-fit ​​plates 203 are rotated from the gap between the two adjacent support plates 202 to the outside of the support plate 202, so that one of the connecting holes 205 is aligned with the mounting hole 109 on the inner wall of the clamping plate 101. Then, fastening bolts 206 are used to penetrate the inner wall of the mounting hole 109 and are threaded to the inner wall of the adjacent connecting hole 205, so that the guide boss 204 can be stably installed at the bottom of the clamping plate 101.

[0031] Furthermore, during the operation of the tooling body 1, the guide boss 204 can be inserted into the inner hole of the input hub, and the upper tooling can press the drive disk. During welding, the lower and upper toolings rotate synchronously, and the tooling body 1 also rotates accordingly. Because the gap between the guide boss 204 and the inner hole of the input hub is small, it effectively limits the swaying and offset of the rotating tooling body 1, making the input hub uniformly stressed. After welding, the runout of the drive disk relative to the input hub is more stable. This embodiment specifically solves the problem in the prior art where uneven stress on the input hub leads to unstable end runout of the drive disk relative to the input hub after welding.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An input hub clamping fixture, comprising a fixture body (1), characterized in that, Also includes: The limiting mechanism (2) located on the inner bottom of the tooling body (1) is used to guide and limit the input hub; The limiting mechanism (2) includes a fixing ring (201) disposed on the inner side of the bottom of the tooling body (1). Three support plates (202) are installed at equal intervals on the outer wall of the fixing ring (201). A snap-fit ​​plate (203) is movably sleeved on the outer side of each of the three support plates (202). A fastening bolt (206) is provided between one of the snap-fit ​​plates (203) and the inner wall of the tooling body (1). A guide boss (204) is fixedly installed on the bottom of the three snap-fit ​​plates (203).

2. The input hub clamping fixture according to claim 1, characterized in that: The tooling body (1) includes a clamping plate (101), and a fixing rod (102) is fixedly installed on the top of the clamping plate (101). A limiting groove (104) is opened on the outer wall of one end of the fixing rod (102).

3. The input hub clamping fixture according to claim 2, characterized in that: A movable rod (105) is movably sleeved on the outside of the fixed rod (102). A slider (106) is fixedly installed on the inner wall of one end of the movable rod (105). The outer wall of the slider (106) is movably connected to the inner wall of the limiting groove (104).

4. The input hub clamping fixture according to claim 3, characterized in that: The outer wall of one end of the fixed rod (102) is provided with a plurality of adjustment holes (103) at equal intervals. The bottom of one end of the movable rod (105) is provided with a fixed hole (107). A connecting bolt (108) is threaded into the inner wall of the fixed hole (107). The end of the connecting bolt (108) away from the fixed hole (107) is threaded to the inner wall of the adjacent adjustment hole (103).

5. The input hub clamping fixture according to claim 2, characterized in that: The bottom of the clamping plate (101) is fixedly connected to the fixing ring (201). An installation hole (109) is provided on the outer wall of one end of the clamping plate (101), and a fastening bolt (206) is threaded into the inner wall of the installation hole (109).

6. The input hub clamping fixture according to claim 5, characterized in that: The inner walls of the three snap-fit ​​plates (203) are provided with connection holes (205), and the inner wall of one of the connection holes (205) is threaded to the outer wall of the end of the fastening bolt (206) away from the mounting hole (109).

7. The input hub clamping fixture according to claim 1, characterized in that: The support plate (202) and the snap-fit ​​plate (203) both have a fan-shaped cross-section when viewed from above, and the height of the fixing ring (201) is the same as the height of the snap-fit ​​plate (203).

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