Anti-loosening hub bolt spline tooth forming die

Abstract

The utility model discloses an anti-loosening hub bolt spline tooth forming die of a spline tooth nut forming die. A mold core used for positioning the spline nut is installed outside the spline nut, an upper pressing rod used for limiting the spline nut is installed at the upper end of the mold core, and the upper pressing rod comprises a check block facilitating dismounting of the spline nut. When the knurled teeth continue to be embossed on the fixed disc, a mold core is placed in a groove cavity of a second notch, a knurled tooth nut is placed in a groove cavity of a third notch, a lower pressing rod is placed in a groove cavity of a fourth notch, a rod body is placed in a groove cavity of a first notch, the rod body abuts against the upper surface of a second limiting column, and a check block abuts against the upper surface of the knurled tooth nut; at the moment, a fixing rod is located at the top of a groove cavity of a sliding groove, a lower pressing rod moves upwards, a spline tooth extrusion key extrudes spline teeth on the lower surface of a fixing disc, after the lower pressing rod moves out of a groove cavity of a fourth groove opening, the fixing rod moves downwards, a check block pushes a spline tooth nut out of a groove cavity of a third groove opening, and then the spline tooth nut can be rapidly disassembled.

Description

TECHNICAL FIELD

[0001] The utility model and hub bolt flower tooth forming die technical field are specifically related to a kind of anti-loosening hub bolt flower tooth forming die. BACKGROUND

[0002] Hub bolt is the high-strength bolt of vehicle connection wheel. The connecting position is the hub unit bearing of wheel, in order to prevent the hub unit bearing of wheel from loosening, it is often fastened by hub bolt cooperation flower tooth, and flower tooth is also called flower tooth nut, and flower tooth nut is usually made of hardened steel, and surface is plated with zinc. The flange of flower tooth nut can be jagged to provide locking effect. The angle of jag is such that the nut will not rotate in the direction of loosening the nut, thereby helping to prevent the vibrational movement of the nut from tightening the fastener, maintaining the holding power of the nut, and the flower tooth nut is connected with hub bolt, which can increase the firmness of connection.

[0003] In the production process of flower tooth nut, the outer end of nut blank is extruded by pressure rod, and then the flower tooth is extruded, but after the flower tooth is extruded, the flower tooth nut is difficult to separate from the mold core. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a kind of anti-loosening hub bolt flower tooth forming die to solve the problem that the flower tooth nut is difficult to separate from the mold core in prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of anti-loosening hub bolt flower tooth forming die, including the lower pressure rod for the fixed disc of the fixed disc of flower tooth nut is embossed.

[0007] The outer portion of the flower tooth nut is provided with a mold core for positioning the flower tooth nut, and the lower pressure rod is installed at the middle lower end of the mold core.

[0008] The upper end of the mold core is provided with an upper pressure rod for limiting the flower tooth nut.

[0009] The upper pressure rod includes a stop block for facilitating the disassembly of the flower tooth nut.

[0010] Further, the outer portion of the mold core is provided with a mold seat for limiting the mold core and the upper pressure rod, and the mold seat includes a limiting column.

[0011] Further, a first slot is formed in the upper middle portion of the limiting column for limiting the upper pressure rod, a second slot is formed in the middle lower end of the rod body for limiting the mold core, and the first slot and the second slot are in communication with each other, and a fixing ring is installed on the outer wall of the limiting column.

[0012] Further, the mold core comprises a second limiting column, a third notch for limiting the flower tooth nut is formed on the upper middle part of the second limiting column, a fourth notch is formed on the middle part of the second limiting column, a guide groove is formed on the lower middle part of the second limiting column, and the third notch, the fourth notch and the guide groove are communicated with each other.

[0013] Further, the upper end of the lower pressing rod is provided with a convex ring, and the upper end of the convex ring is provided with a flower tooth pressing key for extruding the bottom of the fixing disc.

[0014] Further, the upper middle part of the stop block is provided with a connecting rod, and the upper end of the connecting rod is provided with a fixing rod.

[0015] Further, the outer part of the stop block is provided with a rod body for limiting the stop block, a fifth notch for accommodating the stop block is formed on the lower middle part of the rod body, a limiting groove for limiting the connecting rod is formed on the upper middle part of the fifth notch, and a plurality of sliding grooves for limiting the fixing rod are formed on the middle part of the rod body.

[0016] The utility model has the advantages of the following:

[0017] When the flower tooth of the fixing disc is continuously pressed, the mold core is placed in the groove cavity of the second notch, the flower tooth nut is placed in the groove cavity of the third notch, the lower pressing rod is placed in the groove cavity of the fourth notch, the rod body is placed in the groove cavity of the first notch, the upper surface of the rod body and the second limiting column are in contact, the upper surface of the stop block and the flower tooth nut are in contact, at this time, the fixing rod is located at the top of the sliding groove, the flower tooth pressing key extrudes the lower surface of the fixing disc by moving the lower pressing rod upward, and the fixing rod is moved downward after the lower pressing rod is moved out of the groove cavity of the fourth notch, so that the stop block pushes the flower tooth nut out of the groove cavity of the third notch, and the flower tooth nut can be quickly disassembled. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other implementation drawings can be obtained according to the provided drawings without creating labor.

[0019] The structure, proportion, size and the like shown in the specification are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the limiting conditions of the implementation of the utility model, so they do not have the technical essence, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the utility model, should still fall within the scope of the technical content disclosed by the utility model.

[0020] Figure 1 It is the whole structure schematic view of the utility model;

[0021] Figure 2 It is the structure schematic view of the die holder of the utility model;

[0022] Figure 3 It is the structure schematic view of the die core of the utility model;

[0023] Figure 4 It is the A place enlarged view of the utility model; Figure 1

[0024] Figure 5 It is the structure schematic view of the upper pressing rod of the utility model.

[0025] In the drawing: 10 - flower tooth nut, 11 - fixed disc;

[0026] 100 - die holder, 110 - limiting column, 111 - first notch, 112 - second notch, 113 - fixed ring;

[0027] 200 - die core, 210 - second limiting column, 211 - third notch, 212 - fourth notch, 213 - guide slot;

[0028] 300 - lower pressing rod, 310 - convex ring, 311 - flower tooth extrusion key;

[0029] 400 - upper pressing rod, 410 - rod body, 411 - limiting slot, 412 - fifth notch, 413 - sliding slot, 420 - stop block, 421 - connecting rod, 422 - fixed rod. DETAILED DESCRIPTION

[0030] The embodiments of the utility model will be described below by specific examples. Those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0031] The terms such as "upper", "lower", "left", "right", "middle" and the like cited in the specification are only for the convenience of clear description, not to limit the scope of the utility model that can be implemented. The change or adjustment of the relative relationship is also regarded as the scope of the utility model that can be implemented without substantial change of technical content.

[0032] Please refer to Figures 1-5 The utility model provides a kind of anti-loose wheel hub bolt flower tooth forming die.​

[0033] The lower pressing rod 300 is used for pressing the fixed disc 11 at the lower end of the flower tooth nut 10.

[0034] The mold core 200 is installed outside the flower tooth nut 10 and is used for positioning the flower tooth nut 10, and the lower pressing rod 300 is installed at the middle lower end of the mold core 200. The mold core 200 comprises a second limiting column 210, the middle upper end of the second limiting column 210 is processed with a third notch 211 used for limiting the flower tooth nut 10, the middle of the second limiting column 210 is processed with a fourth notch 212 used for limiting the upper end of the lower pressing rod 300, the middle lower end of the second limiting column 210 is processed with a guide groove 213, the guide groove 213 is arranged to facilitate the sliding of the lower pressing rod 300 from the groove cavity of the guide groove 213 to the groove cavity of the fourth notch 212, so as to avoid damaging the flower tooth pressing key 311, and the third notch 211, the fourth notch 212 and the guide groove 213 are in communication with each other.

[0035] The upper end of the lower pressing rod 300 is fixedly installed with a convex ring 310, the upper end of the convex ring 310 is fixedly installed with a flower tooth pressing key 311 used for pressing the bottom of the fixed disc 11, and the bottom of the fixed disc 11 is extruded with the flower tooth through the pressing of the flower tooth pressing key 311.

[0036] The upper end of the mold core 200 is installed with an upper pressing rod 400 used for limiting the flower tooth nut 10, the upper pressing rod 400 comprises a stopper 420 used for facilitating the disassembly of the flower tooth nut 10, the upper end of the stopper 420 is fixedly installed with a connecting rod 421, and the upper end of the connecting rod 421 is fixedly installed with four fixed rods 422.

[0037] The outer part of the stopper 420 is sleeved with a rod body 410 used for limiting the stopper 420, the middle lower end of the rod body 410 is processed with a fifth notch 412 used for accommodating the stopper 420, when the stopper 420 is in the groove cavity of the fifth notch 412, the bottom of the stopper 420 is flush with the bottom of the rod body 410, the diameter of the stopper 420 is smaller than the diameter of the inscribed circle of the third notch 211, so as to facilitate the insertion of the stopper 420 into the middle groove cavity of the third notch 211 and the downward extrusion of the flower tooth nut 10, so that the flower tooth nut 10 quickly separates from the groove cavity of the third notch 211. The middle part of the groove cavity of the fifth notch 412 is processed with a limiting groove 411 used for limiting the connecting rod 421, the middle of the rod body 410 is processed with a plurality of sliding grooves 413 used for limiting the fixed rods 422, and the fixed rods 422 slide up and down in the groove cavities of the sliding grooves 413, when the fixed rods 422 move downward from the upper end of the groove cavities of the sliding grooves 413, the connecting rod 421 and the stopper 420 are driven to move downward, so as to move the flower tooth nut 10 out of the groove cavity of the third notch 211.

[0038] The outer part of the mold core 200 is provided with a mold base 100 for limiting the mold core 200 and the upper pressing rod 400, the mold base 100 comprises a limiting column 110, the upper end of the limiting column 110 is provided with a first notch 111 for limiting the upper pressing rod 400, the lower end of the rod body 410 is located in the slot cavity of the first notch 111, the middle lower end of the rod body 410 is provided with a fixed ring block, and the fixed ring block and the upper surface of the limiting column 110 are in contact. The middle lower end of the rod body 410 is provided with a second notch 112 for limiting the mold core 200, the first notch 111 and the second notch 112 are in communication with each other, and the second limiting column 210 is located in the slot cavity of the second notch 112. The outer wall of the limiting column 110 is fixedly provided with a fixed ring 113 for facilitating the fixation of the mold base 100.

[0039] When the fixed disc 11 is continuously embossed, the mold core 200 is located in the slot cavity of the second notch 112, the embossed nut 10 is located in the slot cavity of the third notch 211, the lower pressing rod 300 is located in the slot cavity of the fourth notch 212, the rod body 410 is located in the slot cavity of the first notch 111, and the rod body 410 and the upper surface of the second limiting column 210 are in contact, and the stop block 420 and the upper surface of the embossed nut 10 are in contact, at this time, the fixed rod 422 is located at the top of the slot cavity of the sliding groove 413, the embossed key 311 is moved upward by the lower pressing rod 300, so that the lower surface of the fixed disc 11 is pressed to form embossing, after the lower pressing rod 300 moves out of the slot cavity of the fourth notch 212, the fixed rod 422 is moved downward, so that the stop block 420 pushes the embossed nut 10 out of the slot cavity of the third notch 211, and the embossed nut 10 can be quickly disassembled.

[0040] Although the utility model has been described in detail above with general description and specific embodiments, some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the utility model, all belong to the scope of protection required by the utility model.

Claims

1. A kind of anti-loose wheel bolt petal tooth forming die, including the fixed disc (11) for the embossing tooth of the lower end of petal tooth nut (10) lower pressing rod (300), it is characterized in that: The outer part of the petal tooth nut (10) is equipped with the mold core (200) for positioning the petal tooth nut (10), and the lower pressing rod (300) is installed in the middle lower end of mold core (200); The upper end of the mold core (200) is equipped with the upper pressing rod (400) for limiting the petal tooth nut (10); The upper pressing rod (400) includes the stop block (420) for facilitating the disassembly of petal tooth nut (10).

2. The hub bolt flower tooth forming die of claim 1, wherein: The outer part of the mold core (200) is equipped with the mold seat (100) for limiting the mold core (200) and upper pressing rod (400), and the mold seat (100) includes limiting column (110).

3. The hub bolt flower tooth forming die of claim 2, wherein: The upper end of the limiting column (110) is processed with the first notch (111) for limiting the upper pressing rod (400) in the middle part, the middle lower end of the limiting column (110) is processed with the second notch (112) for limiting the mold core (200), and the first notch (111) and the second notch (112) are communicated with each other, and the outer wall of the limiting column (110) is equipped with the fixing ring (113).

4. The hub bolt flower tooth forming die of claim 1, wherein: The mold core (200) includes the second limiting column (210), the upper end of the second limiting column (210) is processed with the third notch (211) for limiting the petal tooth nut (10) in the middle part, the middle part of the second limiting column (210) is processed with the fourth notch (212), the lower end of the second limiting column (210) is processed with the guide slot (213), and the third notch (211), the fourth notch (212) and the guide slot (213) are communicated with each other.

5. The anti-loosening wheel hub bolt tooth forming mold according to claim 1, characterized in that: The upper end of the lower pressing rod (300) is equipped with the convex ring (310), and the upper end of the convex ring (310) is equipped with the petal tooth extrusion key (311) for extruding the bottom of the fixed disc (11).

6. The one-piece lock washer of claim 1, wherein: the first and second portions are substantially identical. The upper end of the stop block (420) is equipped with the connecting rod (421) in the middle part, and the upper end of the connecting rod (421) is equipped with the fixed rod (422).

7. The anti-loosening wheel hub bolt tooth forming mold according to claim 6, characterized in that: The outer part of the stop block (420) is equipped with the rod body (410) for limiting the stop block (420), the lower end of the rod body (410) is processed with the fifth notch (412) for accommodating the stop block (420) in the middle part, the upper end of the fifth notch (412) is processed with the limiting slot (411) for limiting the connecting rod (421) in the middle part, and the middle part of the rod body (410) is processed with a plurality of sliding grooves (413) for limiting the fixed rod (422).

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