CN219075538U

CN219075538U - Positioning shaft crimping jig

Info

Publication number: CN219075538U
Application number: CN202320179689.3U
Authority: CN
Inventors: 杜文俊
Original assignee: Shanghai Xinyao Electronics Co Ltd
Current assignee: Shanghai Xinyao Electronics Co Ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-05-26
Anticipated expiration: 2033-02-10

Abstract

The utility model discloses a positioning shaft crimping jig which comprises a bottom plate, a fixed block, a clamping block, a chuck and a product positioning plate, wherein the fixed block is fixedly arranged on the top surface of the bottom plate and provided with a first sliding hole, and a plurality of U-shaped clamping grooves with first arc surfaces are formed in the inner side surface of the fixed block at intervals; the clamping block is movably arranged on the top surface of the bottom plate and is opposite to the fixed block, the clamping block is connected with the fixed block through a bolt with the same height, and a first reset spring is arranged between the clamping block and the fixed block; the clamping head is fixedly arranged on the clamping block and is provided with a clamping head part which can be inserted into the clamping groove, and the front surface of the clamping head part is provided with a second arc surface which is matched with the first arc surface to form a positioning clamping hole; the product locating plate is arranged above the fixed block and the clamping block and is connected with the bottom plate through the guide shaft, a second reset spring is arranged between the product locating plate and the bottom plate, and rear cover fixing grooves which are in one-to-one correspondence with the locating clamping holes are formed in the product locating plate, so that the vertical precision and the assembly efficiency of the locating shaft are improved.

Description

Positioning shaft crimping jig

Technical Field

The utility model relates to the technical field of motor part assembly tools, in particular to a positioning shaft crimping jig.

Background

The regulation of the far and near light of the car lamp is realized by a special motor, the motor is provided with a rear cover and a positioning shaft which is inserted and fixed on the rear cover, the rear cover is used for closing a motor shell, and the positioning shaft plays a role of gear worm transmission rotary support.

When the motor is assembled, the rear cover and the positioning shaft are assembled together, then the rear cover and the positioning shaft are installed on the motor shell, when the rear cover and the positioning shaft are assembled, the positioning shaft is required to be kept in a vertical state, the rear cover is placed right above the positioning shaft, the inserting holes at the bottom of the rear cover are aligned with the positioning shaft, the rear cover is pressed down, the top of the positioning shaft is inserted into the inserting holes of the rear cover, and the assembly of the rear cover and the positioning shaft is realized;

in the prior art, the positioning shaft is usually placed in the round hole to keep a vertical state, but after the positioning shaft is placed in the round hole, a gap is reserved between the positioning shaft and the wall of the round hole, so that the perpendicularity of the positioning shaft is affected, the assembly precision of the positioning shaft and the rear cover is low, and the assembly speed is low.

Disclosure of Invention

The utility model aims to provide a positioning shaft crimping jig which solves the problems of low assembly precision and low assembly speed of a positioning shaft and a rear cover in the prior art.

The aim of the utility model can be achieved by the following technical scheme:

a positioning shaft crimping jig, comprising:

a bottom plate;

the fixed block is fixedly arranged on the top surface of the bottom plate, a first sliding hole is formed in the fixed block, and a plurality of U-shaped clamping grooves with first arc surfaces are formed in the inner side surface of the fixed block at intervals;

the clamping block is movably arranged on the top surface of the bottom plate and is opposite to the fixed block, the clamping block is connected with the fixed block through a constant-height bolt, the constant-height bolt is fixedly connected with the clamping block and is in sliding fit with the first sliding hole, and a first reset spring is arranged between the clamping block and the fixed block;

the clamping head is fixedly arranged on the clamping block and is provided with a clamping head part which can be inserted into the clamping groove, and the front surface of the clamping head part is provided with a second arc surface which is matched with the first arc surface to form a positioning clamping hole;

the product locating plate is arranged above the fixing block and the clamping block and is connected with the bottom plate through a guide shaft, a second reset spring is arranged between the product locating plate and the bottom plate, and rear cover fixing grooves which are in one-to-one correspondence with the locating clamping holes are formed in the product locating plate.

As a further scheme of the utility model: one end of the guide shaft is fixedly connected with the product positioning plate, the other end of the guide shaft penetrates through the bottom plate to be in sliding fit with the bottom plate, and a limiting piece fixedly connected to the bottom end of the guide shaft is arranged below the bottom plate.

As a further scheme of the utility model: the clamping block is provided with a caulking groove, and the clamping head comprises a mounting part matched with the caulking groove.

As a further scheme of the utility model: the first sliding sleeve is fixedly embedded in the first sliding hole, and the equal-height bolt is inserted into the first sliding sleeve to be in sliding fit with the first sliding sleeve.

As a further scheme of the utility model: and a conical surface is arranged above the top end of the first arc surface.

As a further scheme of the utility model: the bottom plate is located below each clamping groove and is provided with a wear-resistant insert embedded in the bottom plate.

The utility model has the beneficial effects that: this application is through setting up the clamping groove of U-shaped, and the locating shaft of being convenient for is put into clamping groove, improves packaging efficiency. Simultaneously, set up the chuck portion with clamping groove adaptation, make the locating shaft by first arc face and second arc face centre gripping fixed after being put into clamping groove, improve the vertical precision after the locating shaft is fixed.

Drawings

The utility model is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a portion of the structure of the present utility model;

FIG. 3 is a schematic view of the structure of the fixing block in the present utility model;

FIG. 4 is a schematic view of the structure of the clamping block of the present utility model;

FIG. 5 is a schematic view of a further portion of the structure of the present utility model;

fig. 6 is a schematic structural view of a chuck in the present utility model.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-2, the present utility model is a positioning shaft crimping jig for assisting assembly between a rear cover 101 and a positioning shaft 102.

The crimping jig comprises a bottom plate 10, a fixed block 11, a clamping block 12, a clamping head 13 and a product positioning plate 14.

The bottom plate 10 is a flat plate with a substantially rectangular shape, which plays a role in supporting and fixing, and the whole crimping jig can be fixed on other components through the bottom plate 10.

Referring to fig. 2 and 3, the fixing block 11 and the clamping block 12 are oppositely disposed on the top surface of the bottom plate 10, wherein the fixing block 11 is disposed on one side of the top surface of the bottom plate 10, and is integrally formed with the bottom plate 10 or fixedly connected with the bottom plate 10 by a fastener such as a bolt, which is not particularly limited herein. The fixed block 11 is provided with two first sliding holes 111 penetrating from the left side to the right side of the fixed block 11, in this embodiment, the two first sliding holes 111 are respectively close to the front end and the rear end of the fixed block 11, so that stability of the following clamping block 12 when moving relative to the fixed block 11 is ensured.

Four identical clamping grooves 112 are provided on the inner side surface (side surface close to the clamping block 12) of the fixing block 11 at intervals, however, in other embodiments, the number of the clamping grooves 112 may be other, and is not limited herein. The clamping groove 112 is U-shaped to facilitate placement of the positioning shaft 102 into the clamping groove 112. The clamping groove 112 is internally provided with a first arc surface 1121 for clamping the positioning shaft 102, and the section caliber of the first arc surface 1121 is matched with the positioning shaft 102, so that the positioning shaft 102 can be clamped and fixed later, and the vertical precision of the positioning shaft 102 is ensured.

The top of the first arc surface 1121 is provided with a conical surface 113, and the top section caliber of the conical surface 113 is larger than the bottom section caliber, so that the positioning shaft 102 can conveniently fall into the clamping groove 112 along the conical surface 113.

Referring to fig. 5, a wear-resistant insert 15 embedded in the bottom plate 10 is disposed below each clamping groove 112 of the bottom plate 10, so that when the rear cover 101 and the positioning shaft 102 are pressed together, the bottom end of the positioning shaft 102 abuts against the wear-resistant insert 15, thereby preventing the positioning shaft 102 from damaging the bottom plate 10.

Referring to fig. 2 and 4, the clamping block 12 is movably disposed on the other side of the top surface of the bottom plate 10, and is connected with the fixing block 11 by a bolt 16 with the same height, so that the clamping block 12 is flush with the fixing block 11. The number of the contour bolts 16 corresponds to the first slide holes 111 one by one. Specifically, the contour bolt 16 is slidably engaged with the first sliding hole 111, and the tail end passes through the first sliding hole 111 to be fixedly connected with the clamping block 12, so that the clamping block 12 can approach or separate from the fixed block 11 along a linear direction. Preferably, the first sliding sleeve 17 is embedded in the first sliding hole 111, and the equal-height bolt 16 is inserted into the first sliding sleeve 17 to be in sliding fit with the first sliding sleeve, so that the equal-height bolt 16 is prevented from wearing the first sliding hole 111.

Referring to fig. 2 and 5, a first return spring 18 is disposed between the clamping block 12 and the fixing block 11, so that the clamping block 12 can maintain a certain distance from the fixing block 11 without being subjected to external force.

Referring to fig. 4 and 6, the collet 13 includes a rectangular block-shaped mounting portion 131 and a T-shaped collet portion 132, and the collet portion 132 is disposed on one side of the mounting portion 131 and integrally formed with the mounting portion 131. The caulking groove 121 is formed in the clamping block 12, the mounting portion 131 is matched with the caulking groove 121, the clamping head 13 is detachably and fixedly connected with the clamping block 12, the clamping head 13 and the clamping block 12 can be made of different materials, and cost is reduced. The clamping head 132 is matched with the clamping groove 112, so that the clamping head 132 can be inserted into the clamping groove 112, and the front surface of the clamping head 132 is provided with a second circular arc surface 1321 matched with the first circular arc surface 1121 to form a positioning clamping hole.

Referring to fig. 1-2, a product positioning plate 14 is disposed above a fixed block 11 and a clamping block 12, and is connected with a bottom plate 10 through a guide shaft 19, one end of the guide shaft 19 is fixedly connected with the product positioning plate 14, the other end of the guide shaft penetrates through the fixed block 11 and the bottom plate 10 and is movably connected with the fixed block and the bottom plate 10, and a limiting piece 20 fixedly connected to the bottom end of the guide shaft 19 is disposed below the bottom plate 10 to limit a relatively movable distance between the product positioning plate 14 and the fixed block 11.

A second return spring 21 is provided between the product positioning plate 14 and the bottom plate 10 to maintain a certain distance between the product positioning plate 14 and the bottom plate 10 without applying an external force.

The product positioning plate 14 is provided with rear cover fixing grooves 141 corresponding to the positioning clamping holes one by one for fixing the rear cover 101.

The using method of the crimping jig comprises the following steps:

placing the positioning shaft 102 into the clamping groove 112, and compressing the first return spring 18 to approach the fixed block 11 by the clamping block 12 under the action of external force, so that the clamping head 132 is inserted into the clamping groove 112, and the first circular arc surface 1121 and the second circular arc surface 1321 clamp the positioning shaft 102, so that the positioning shaft 102 is kept in a vertical state;

the rear cover 101 is placed in the rear cover fixing groove 141, the product positioning plate 14 and the rear cover 101 are synchronously pressed down under the action of external force, so that the second reset spring 21 is compressed, the top end of the positioning shaft 102 is inserted into the jack at the bottom of the rear cover 101, and the assembly of the positioning shaft 102 and the rear cover 101 is realized;

the external force to the clamping block 12 and the product positioning plate 14 is released, and the rear cover 101 together with one piece of the positioning shaft 102 is taken out of the rear cover fixing groove 141, so that the assembled product can be rapidly disassembled.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. Positioning shaft crimping tool, its characterized in that includes:

a bottom plate;

2. The crimping jig according to claim 1, wherein one end of the guide shaft is fixedly connected with the product positioning plate, the other end of the guide shaft penetrates through the bottom plate to be in sliding fit with the bottom plate, and a limiting piece fixedly connected to the bottom end of the guide shaft is arranged below the bottom plate.

3. The crimping jig of claim 1, wherein the clamping block is provided with a caulking groove, and the collet includes a mounting portion adapted to the caulking groove.

4. The crimping jig of claim 1, wherein a first sliding sleeve is embedded in the first sliding hole, and the contour bolt is inserted into the first sliding sleeve to be in sliding fit with the first sliding sleeve.

5. The crimping jig of claim 1, wherein a conical surface is provided above the top end of the first arcuate surface.

6. The crimping tool of claim 1, wherein the bottom plate is provided with a wear insert embedded in the bottom plate below each of the clamping grooves.