Tool for riveting point of sliding pipe of automobile intermediate shaft
By designing a sliding tube rivet point tool suitable for different models of intermediate shafts, the problems of low rivet efficiency and high cost in the prior art are solved, and the rivet point effect is achieved with convenient operation and strong versatility.
Patent Information
- Application Number
- CN202420659204.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The prior art is difficult to efficiently and conveniently realize the sliding tube rivet points of different models of intermediate shafts, resulting in a long manufacturing cycle and high cost of special equipment.
Design a sliding tube rivet point workpiece for automobile intermediate shaft, including a rivet point mechanism and an intermediate shaft clamping mechanism. It is designed with adjustable rivet head base, locking ring, adjustment ring and hexagonal module design, suitable for different models of intermediate shafts.
It achieves convenient operation and strong versatility, improves the rivet point efficiency of the intermediate shaft sliding tube, and reduces the rivet point cost.
Smart Images
Figure CN222842999U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steering systems, in particular to a tooling for sliding tube riveting points of an automobile intermediate shaft. Background Art
[0002] The automobile steering system consists of a steering column, an intermediate shaft, and a steering gear. One end of the steering column is connected to the steering wheel, and the other end is connected to the intermediate shaft. One end of the steering gear is connected to the intermediate shaft, and the other end is indirectly connected to the wheel. The torque of the driver turning the steering wheel is transmitted to the steering gear through the steering column and the intermediate shaft, and converted into the left and right linear motion of the steering gear, thereby driving the wheels to turn. The intermediate shaft is an important part of the automobile steering system. It is composed of an upper cross universal joint, a sliding tube, a sliding shaft, a lower cross universal joint and other components, which can realize non-coaxial transmission of torque. The intermediate shaft is required to be able to transmit torque and to be able to axially expand and contract to absorb vibrations when the car is bumpy.
[0003] During the assembly of the intermediate shaft, the spline tooth surface of the sliding shaft is firstly injection molded to meet certain shaft tube sliding force requirements, and then the sliding tube is inserted into the sliding shaft, and finally the sliding tube and the sliding shaft are treated to prevent them from coming out. There are certain requirements for the pull-out force of the sliding tube and the sliding shaft. Installing anti-pull-out caps and riveting points at the ends of the sliding tube are two commonly used anti-pull-out methods. Generally, the sliding tube riveting point method is adopted, which has certain requirements for the width of the riveting point and the depth of the riveting point. If the riveting point is too deep, it will damage the sliding shaft and the injection molding layer. If the riveting point is too shallow or too small, it will not meet the pull-out force requirements of the sliding tube and the sliding shaft.
[0004] During the prototype development stage, there were many types of products but a small number of trial production. In order to efficiently and conveniently realize the riveting of sliding tubes of intermediate shafts of different models, the manufacturing cycle of special equipment was long and the cost was high. Therefore, a set of low-cost and highly versatile tooling for riveting sliding tubes of automobile intermediate shafts was designed. Summary of the invention
[0005] The utility model overcomes the shortcomings of the prior art and provides a tool for riveting sliding tubes of automobile intermediate shafts, which can meet the riveting requirements of the sliding tubes of automobile intermediate shafts, is easy to operate, has strong versatility, and improves the riveting efficiency of the sliding tubes of the intermediate shafts.
[0006] In order to achieve the above-mentioned purpose, a tool for riveting points of sliding tubes of automobile intermediate shafts is designed, which is characterized in that: the tool comprises a riveting point mechanism and an intermediate shaft clamping mechanism;
[0007] The riveting point mechanism comprises a cover plate, a rivet head base, a locking ring, an adjusting ring, and a rivet head. The rivet head base is a T-shaped sleeve structure, a through hole is provided at the center of the rivet head base, and a rivet head is provided in the through hole; the top of the rivet head base is connected to the cover plate by a plurality of bolts; a locking ring and an adjusting ring are provided on the outer side of the lower part of the rivet head base;
[0008] The intermediate shaft clamping mechanism comprises an upper clamping block, a lower clamping block, an upper positioning sleeve, a lower positioning sleeve and a positioning pin. The upper clamping block and the lower clamping block are connected by clamping block bolts. Arc-shaped grooves are respectively provided on the lower end surface of the upper clamping block and the upper end surface of the lower clamping block. An upper positioning sleeve is embedded in the arc-shaped groove of the upper clamping block, and a lower positioning sleeve is embedded in the arc-shaped groove of the lower clamping block.
[0009] The top of the rivet head is a disc-shaped structure, the middle of the rivet head is a rectangular columnar structure, and the bottom of the rivet head is a triangular structure.
[0010] A thread structure connected with a locking ring and an adjusting ring is arranged on the outer edge surface of the lower part of the rivet head base.
[0011] Two positioning pins are arranged on the connecting surface at the upper end of the lower clamping block.
[0012] A pin hole is provided on the connection surface at the lower end of the upper clamping block, and the position of the pin hole matches the positioning pin on the connection surface at the upper end of the lower clamping block.
[0013] The upper clamping block and the lower clamping block are combined to form a hexagonal module, and rivet point holes penetrating the rivet heads are respectively arranged at the top of the upper clamping block and the left and right sides of the lower clamping block.
[0014] Compared with the prior art, the utility model provides a tool for riveting sliding tubes of automobile intermediate shafts, which can meet the riveting requirements of sliding tubes of automobile intermediate shafts, is easy to operate, has strong versatility, and improves the riveting efficiency of sliding tubes of intermediate shafts. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model.
[0016] Figure 2 The utility model is an assembly flow chart of the riveting point mechanism.
[0017] Figure 3 Schematic diagram of riveting point height adjustment.
[0018] Figure 4 The utility model is an assembly flow chart of the intermediate shaft clamping mechanism.
[0019] Figure 5 Schematic diagram of the rivet holes on the lower clamping block.
[0020] Figure 6 Schematic diagram of rivet point depth.
[0021] Figure 7 This is the workflow diagram for the first riveting point.
[0022] Figure 8This is the workflow diagram for the second and third rivet points. DETAILED DESCRIPTION
[0023] The utility model is further described below with reference to the accompanying drawings.
[0024] like Figure 1 As shown, the tooling of the utility model includes a riveting point mechanism and an intermediate shaft clamping mechanism;
[0025] The riveting point mechanism includes a cover plate, a rivet head base, a locking ring, an adjusting ring, and a rivet head. The rivet head base 3 is a T-shaped sleeve structure, a through hole is provided in the center of the rivet head base 3, and a rivet head 6 is provided in the through hole; the top of the rivet head base 3 is connected to the cover plate 2 through a plurality of bolts 1; a locking ring 4 and an adjusting ring 5 are sleeved on the outer side of the lower part of the rivet head base 3;
[0026] The intermediate shaft clamping mechanism includes an upper clamping block, a lower clamping block, an upper positioning sleeve, a lower positioning sleeve, and a positioning pin. The upper clamping block 8 and the lower clamping block 12 are connected by a clamping block bolt 7. The lower end surface of the upper clamping block 8 and the upper end surface of the lower clamping block 12 are respectively provided with arc-shaped grooves, the arc-shaped groove of the upper clamping block 8 is embedded with an upper positioning sleeve 9, and the arc-shaped groove of the lower clamping block 12 is embedded with a lower positioning sleeve 11.
[0027] The top of the rivet head 6 is a disc-shaped structure, the middle of the rivet head 6 is a rectangular columnar structure, and the bottom of the rivet head 6 is a triangular structure.
[0028] A threaded structure connected to the locking ring 4 and the adjusting ring 5 is provided on the outer edge surface of the lower part of the rivet head base 3 .
[0029] Two positioning pins 10 are provided on the connecting surface of the upper end of the lower clamping block 12 .
[0030] A pin hole is provided on the connection surface at the lower end of the upper clamping block 8 , and the position of the pin hole matches the positioning pin 10 on the connection surface at the upper end of the lower clamping block 12 .
[0031] The upper clamping block 8 and the lower clamping block 12 are combined to form a hexagonal module, and rivet holes 13 penetrating the rivet head 6 are respectively provided at the top of the upper clamping block 8 and the left and right sides of the lower clamping block 12 .
[0032] like Figure 2 As shown, the rivet head 6 is installed in the rivet head base 3. After being installed in place, the upper end surface of the rivet head 6 is flush with the upper end surface of the rivet head base 3. The cover plate 2 is installed on the rivet head base 3 by three bolts 1 and can be quickly disassembled and assembled to facilitate replacement of the rivet head 6.
[0033] like Figure 3As shown, the rivet head base 3 is provided with a thread, and the locking ring 4 is installed on the rivet head base 3, and the adjusting ring 5 can be tightened by rotation. The adjusting ring 5 is installed on the rivet head base 3, and the height h with the vertex of the bottom end of the rivet head 6 can be adjusted by rotation.
[0034] like Figure 4 As shown, the lower clamping block 12 is provided with two positioning pins 10, and the upper and lower clamping blocks can only be installed in a single position. The upper and lower clamping blocks are locked by two clamping block bolts 7.
[0035] like Figure 4 , Figure 5 As shown, the upper clamping block 8 is provided with a rivet point hole, the lower clamping block 12 is provided with two rivet point holes, and the three rivet point holes 13 are evenly distributed at 120° in the circumferential direction, and can all cooperate with the rivet head 6.
[0036] like Figure 6 As shown, during the riveting process, when the adjusting ring 5 is flush with the upper clamping block 8, the requirement of the riveting depth of the sliding tube is just met, and the height exposed at the bottom of the rivet head 6 is just equal to the riveting depth required by the sliding tube.
[0037] The upper positioning sleeve 9 is installed on the upper clamping block 8, and the lower positioning sleeve 11 is installed on the lower clamping block 12. The inner surfaces of the upper and lower positioning sleeves are closely matched with the outer surface of the sliding tube, and the end faces of the upper and lower positioning sleeves are provided with steps, which contact the end face of the sliding tube. When the sliding tube is installed until the end face contacts the end faces of the upper and lower positioning sleeves, the rivet head 6 is just aligned with the rivet point position of the sliding tube.
[0038] The upper and lower clamping blocks are of universal design, and can be applied to sliding pipes of different diameters by replacing the upper and lower positioning sleeves. The rivet head 6 is of universal design, and can be applied to intermediate shafts with different rivet point shape requirements by replacing the rivet head 6.
[0039] The workflow of this utility model:
[0040] According to the model of the intermediate shaft, select the upper and lower positioning sleeves and install them to the upper and lower clamping blocks, select the rivet head and install it in the rivet head base, adjust the adjusting ring to the specified position, and lock it with the locking ring.
[0041] Put the intermediate shaft into the upper and lower positioning sleeves, the outer surface of the sliding tube fits with the surface of the lower positioning sleeve, and the end surface of the sliding tube contacts with the step surface of the lower positioning sleeve.
[0042] Lock the upper clamping block and the lower clamping block. At this time, the rivet head hole is aligned with the rivet point position of the sliding tube.
[0043] Place the rivet head into the rivet head hole of the clamping block, start the press, and press until the adjustment ring contacts the clamping block to complete the first rivet point. Figure 7 shown.
[0044] Rotate the upper and lower clamping blocks, rivet the second point, rotate the clamping blocks again, rivet the third point, such as Figure 8 shown.
[0045] After the riveting points are completed, loosen the tooling and take out the intermediate shaft.
[0046] The utility model assembly tool can be applied to the riveting points of different types of intermediate shaft sliding tubes by replacing the upper and lower positioning sleeves and rivet heads, and adjusting the adjusting ring and the locking ring, thereby improving the versatility of the tool and reducing the riveting point cost of the intermediate shaft. The utility model has a compact structure, convenient operation, high riveting point accuracy, and convenient installation and disassembly of the product, which effectively improves the assembly efficiency.
Claims
1. A tool for sliding tube riveting points of an automobile intermediate shaft, characterized in that: The tooling includes a riveting point mechanism and an intermediate shaft clamping mechanism; The riveting point mechanism comprises a cover plate, a rivet head base, a locking ring, an adjusting ring, and a rivet head. The rivet head base (3) is in a T-shaped sleeve structure. A through hole is provided at the center of the rivet head base (3), and a rivet head (6) is provided in the through hole. The top of the rivet head base (3) is connected to the cover plate (2) via a plurality of bolts (1). A locking ring (4) and an adjusting ring (5) are sleeved on the outer side of the lower part of the rivet head base (3). The intermediate shaft clamping mechanism comprises an upper clamping block, a lower clamping block, an upper positioning sleeve, a lower positioning sleeve, and a positioning pin. The upper clamping block (8) and the lower clamping block (12) are connected via a clamping block bolt (7). The lower end surface of the upper clamping block (8) and the upper end surface of the lower clamping block (12) are respectively provided with arc-shaped grooves. The upper positioning sleeve (9) is embedded in the arc-shaped groove of the upper clamping block (8), and the lower positioning sleeve (11) is embedded in the arc-shaped groove of the lower clamping block (12).
2. The tooling for sliding tube riveting points of an automobile intermediate shaft according to claim 1, characterized in that: The top of the rivet head (6) is a disc-shaped structure, the middle of the rivet head (6) is a rectangular columnar structure, and the bottom of the rivet head (6) is a triangular structure.
3. The tooling for sliding tube riveting points of an automobile intermediate shaft according to claim 1, characterized in that: A threaded structure connected to a locking ring (4) and an adjusting ring (5) is provided on the lower outer edge surface of the rivet head base (3).
4. The tooling for sliding tube riveting points of an automobile intermediate shaft according to claim 1, characterized in that: Two positioning pins (10) are provided on the connection surface at the upper end of the lower clamping block (12).
5. The tooling for sliding tube riveting points of an automobile intermediate shaft according to claim 1, characterized in that: A pin hole is provided on the connection surface at the lower end of the upper clamping block (8), and the position of the pin hole matches the positioning pin (10) on the connection surface at the upper end of the lower clamping block (12).
6. The tooling for sliding tube riveting points of an automobile intermediate shaft according to claim 1, characterized in that: The upper clamping block (8) and the lower clamping block (12) are combined to form a hexagonal module, and rivet point holes (13) penetrating the rivet head (6) are respectively provided at the top of the upper clamping block (8) and the left and right sides of the lower clamping block (12).