Riveting jig for collision bead piece

Abstract

The utility model discloses a riveting jig for a collision bead piece. The assembly of the collision bead piece can be realized in a riveting mode. The riveting jig for the collision bead piece comprises an upper jig and a lower jig which can perform opening and closing movement in opposite directions, and a negative pressure pipe arranged in the upper jig, the upper jig and the lower jig are respectively provided with a first through hole and a second through hole which are coaxially arranged; the inner wall of the upper end of the second through hole expands outwards to form a step used for supporting the lower end face of the shell of the ball collision piece. The periphery of the lower end of the first through hole is provided with a first annular slope used for riveting the upper end face of a shell of the ball collision piece. The upper end of the negative pressure pipe is used for being connected with negative pressure equipment, and the lower end of the negative pressure pipe is inserted into the first through hole and used for adsorbing a bead head in the upper end of the bead collision piece.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting jigs, in particular to a riveting jig for a snap bead part. Background Art

[0002] The utility model patent CN217152510U discloses a telescopic connecting piece dedicated to a valve, which is called a "snap bead part" in the industry and can connect a traditional valve nozzle with a TPMS tire pressure monitoring housing to achieve quick disassembly and assembly. Refer to Figure 3 , the snap bead part 10 includes a cylindrical outer shell 101, two bead heads 102 movably fitted inside both ends of the outer shell 101, and a spring 103 arranged between the two bead heads 102; an activity channel 1011 for the bead heads 102 and the spring 103 to movably cooperate is arranged inside the outer shell 101, and flanges 1012, 1013 with apertures smaller than the bead heads 102 need to be designed at both ends of the activity channel 1011 to prevent the bead heads 102 from coming out. The flange 1012 at one end can be integrally formed directly on the formed outer shell 101, while the flange 1013 at the other end needs to be formed by means of knocking, rolling, etc. after the bead heads 102 and the spring 103 are installed. The elastic force of the spring 103 acting on the upper bead head 102 will also provide resistance during the forming process, resulting in the snap bead part of this structure being not easy to assemble, with low efficiency and inconsistent product quality. Utility Model Content

[0003] The purpose of the utility model is to provide a riveting jig for a snap bead part, solve the problems existing in the prior art, and realize the assembly of the snap bead part by means of riveting.

[0004] To achieve the above object, the solution of the utility model is:

[0005] A riveting jig for a snap bead part includes an upper jig and a lower jig that can move towards and away from each other in an opening and closing manner, and a negative pressure tube arranged inside the upper jig; the upper jig and the lower jig are respectively provided with coaxially arranged first through holes and second through holes; the inner wall of the upper end of the second through hole expands outwards to form a step for supporting the lower end face of the outer shell of the snap bead part; the peripheral edge of the lower end of the first through hole is provided with a first annular inclined surface for riveting the upper end face of the outer shell of the snap bead part; the upper end of the negative pressure tube is used to connect a negative pressure device, and its lower end is inserted into the first through hole for adsorbing the bead head inside the upper end of the snap bead part.

[0006] The apertures of the first through hole and the second through hole are both larger than the diameter of the bead head of the snap bead part.

[0007] A guiding mechanism is arranged between the upper jig and the lower jig.

[0008] Preferably, the guiding mechanism includes guiding holes provided on the lower surface of the upper jig and guiding columns provided on the upper surface of the lower jig, and the guiding columns are movably inserted through the guiding holes.

[0009] Preferably, two guiding columns are designed, and are respectively located on both sides of the second through hole.

[0010] Preferably, a second annular inclined surface is provided on the upper end surface of the guiding column.

[0011] The negative pressure tube is made of a hard material.

[0012] The upper jig is driven by a cylinder or a hydraulic cylinder, and the lower jig is fixed on the workbench.

[0013] After adopting the above technical solution, the utility model has the following technical effects:

[0014] After the bead head and the spring of the catch member are loaded into the housing, the catch member as a whole only needs to be placed at the step of the second through hole, and then the upper jig and the lower jig are closed to form the flange at the upper end of the housing by riveting; since the flange at the upper end is riveted in a whole circle at the same time, and the bead head located inside the upper end of the housing is continuously adsorbed by the negative pressure tube during the riveting process, the auxiliary fixation of the bead head is realized to cooperate with the riveting, ensuring that the appearance of the finally formed flange is neat, and improving the production efficiency and product quality. Description of the Drawings

[0015] Figure 1 is an exploded view of a specific embodiment of the utility model;

[0016] Figure 2 is a cross-sectional view of a specific embodiment of the utility model;

[0017] Figure 3 is Figure 2 an enlarged view of part A in

[0018] Explanation of the Reference Numerals in the Drawings:

[0019] 1 - upper jig; 11 - first through hole; 12 - first annular inclined surface; 13 - guiding hole;

[0020] 2 - lower jig; 21 - second through hole; 22 - step; 23 - guiding column; 231 - second annular inclined surface;

[0021] 3 - negative pressure tube;

[0022] 10 - catch member; 101 - housing; 1011 - movable channel; 1012 - flange; 1013 - flange; 102 - bead head; 103 - spring. Detailed Embodiment

[0023] To further explain the technical solution of the present utility model, the present utility model will be elaborated in detail through specific embodiments below.

[0024] Refer to Figures 1-3 As shown, the present utility model discloses a riveting fixture for a catch member, including an upper fixture 1 and a lower fixture 2 that can move in opposite directions for opening and closing, and a negative pressure tube 3 disposed in the upper fixture 1;

[0025] The upper fixture 1 and the lower fixture 2 are respectively provided with coaxially arranged first through holes 11 and second through holes 21; the inner wall of the upper end of the second through hole 21 expands outward to form a step 22 for supporting the lower end face of the outer shell 101 of the catch member 10; a first annular inclined surface 12 for riveting the upper end face of the outer shell 101 of the catch member 10 is provided at the peripheral edge of the lower end of the first through hole 11;

[0026] The upper end of the negative pressure tube 3 is used to connect a negative pressure device, and its lower end is inserted into the first through hole 11 for adsorbing the bead head 102 inside the upper end of the catch member 10 to play a role in fixing the height.

[0027] Through the above solution, after the bead head 102 and the spring 103 of the catch member 10 are installed in the outer shell 101, the catch member 10 only needs to be integrally placed at the step 22 of the second through hole 21, and then the upper fixture 1 and the lower fixture 2 are closed to rivet and form a flange 1013 at the upper end of the outer shell 101; since the upper flange 1013 is riveted in a whole circle at the same time, and the bead head 102 located inside the upper end of the outer shell 102 is continuously adsorbed by the negative pressure tube 3 during the riveting process, the auxiliary fixation of the bead head 102 is realized to cooperate with the riveting, ensuring that the appearance of the finally formed flange 1013 is neat and improving the production efficiency and product quality.

[0028] The following shows specific embodiments of the present utility model.

[0029] The apertures of the above-mentioned first through hole 11 and second through hole 21 are both larger than the diameter of the bead head 102, so as to make way for the bead head 102 during the riveting process and avoid damaging the catch member 10.

[0030] A guiding mechanism is provided between the above-mentioned upper fixture 1 and the lower fixture 2 to ensure the stability of the relative movement between the two.

[0031] Further, the guiding mechanism includes a guiding hole 13 provided on the lower surface of the upper fixture 1 and a guiding post 23 provided on the upper surface of the lower fixture 2. The guiding post 23 is movably inserted through the guiding hole 13 to play a guiding role.

[0032] Secondly, the number of the above-mentioned guiding posts 23 is designed to be two, which are respectively located on both sides of the second through hole 21.

[0033] Meanwhile, a second annular inclined surface 231 is provided on the upper end surface of the above-mentioned guide post 23 so that the guide post 23 can enter the guide hole 13 more easily.

[0034] The above-mentioned negative pressure tube 3 is made of a rigid material, such as metal, to ensure its structural strength. Then the upper end of the negative pressure tube 3 can be connected to the negative pressure device through a hose.

[0035] When riveting, the upper jig 1 can be driven by a device capable of outputting linear reciprocating motion, such as a cylinder or a hydraulic cylinder, and the lower jig 2 is relatively fixed on the workbench.

[0036] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A riveting jig for a catch part, characterized in that: It includes an upper jig and a lower jig that can move towards and away from each other, and a negative pressure pipe arranged in the upper jig; The upper jig and the lower jig are respectively provided with a first through hole and a second through hole that are coaxially arranged; the inner wall of the upper end of the second through hole expands to form a step for supporting the lower end face of the outer shell of the catch part; a first annular inclined surface for riveting the upper end face of the outer shell of the catch part is arranged on the peripheral edge of the lower end of the first through hole; The upper end of the negative pressure pipe is used to connect a negative pressure device, and its lower end is inserted into the first through hole for adsorbing the bead head inside the upper end of the catch part.

2. The riveting jig for a catch part according to claim 1, characterized in that: The diameters of the first through hole and the second through hole are both larger than the diameter of the bead head of the catch part.

3. The riveting jig for a catch part according to claim 1, characterized in that: A guiding mechanism is arranged between the upper jig and the lower jig.

4. The riveting jig for a catch part according to claim 3, characterized in that: The guiding mechanism includes a guiding hole arranged on the lower surface of the upper jig and a guiding post arranged on the upper surface of the lower jig, and the guiding post movably penetrates through the guiding hole.

5. The riveting jig for a catch part according to claim 4, characterized in that: The number of the guiding posts is designed to be two, which are respectively located on both sides of the second through hole.

6. The riveting jig for a catch part according to claim 4, characterized in that: A second annular inclined surface is arranged on the upper end face of the guiding post.

7. The riveting jig for a catch part according to claim 1, characterized in that: The negative pressure pipe is made of a hard material.

8. The riveting jig for a catch part according to claim 1, characterized in that: The upper jig is driven by a cylinder or a hydraulic cylinder, and the lower jig is fixed on the workbench.

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