CN209830921U

CN209830921U - Positioning connecting block

Info

Publication number: CN209830921U
Application number: CN201822276562.5U
Authority: CN
Inventors: 聂坤刚
Original assignee: CHONGQING CHUANGYU AUTOMOTIVE PARTS Co Ltd
Current assignee: CHONGQING CHUANGYU AUTOMOTIVE PARTS Co Ltd
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2019-12-24
Anticipated expiration: 2028-12-30

Abstract

In order to solve the problem of high cost of the clamp in the existing batch processing of automobile parts, the utility model provides a positioning connecting block which is in a stepped shaft shape and sequentially comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder from right to left, wherein the right end surface of the second cylinder is vertical to the first cylinder; the right end face of the second cylinder is parallel to the left end face of the third cylinder, and the left end face of the third cylinder is perpendicular to the fourth cylinder. In this application, only need carry out the finish machining to the anchor clamps base body to the place with positioning connection piece second cylinder right-hand member face matched with, need not to process the whole plane of base body, reduced the processing cost, solved current auto-parts and processed anchor clamps problem with high costs in batches.

Description

Positioning connecting block

Technical Field

The utility model relates to an auto-parts processing technology field, in particular to location connecting block.

Background

The jig is a device for fixing a processing object to occupy a correct position so as to receive construction or inspection in a machine manufacturing process. The clamp is divided into a positioning part and a clamping part, 6 degrees of freedom need to be limited in the positioning stage, the displacement of a workpiece in processing is prevented, a common positioning mode comprises one-surface two-pin positioning, namely, a fine-machined plane is used as a positioning surface, two positioning pins are arranged on the positioning surface, the workpiece is provided with two matched positioning holes and a base surface matched with the positioning surface, and the workpiece positioning is completed through the surface-to-surface lamination and the matching of the pins and the holes;

in actual production, auto-parts belong to parts in batches, so often set up a plurality of location portions on the same anchor clamps basic body to in once process to a plurality of work pieces, so that improve machining efficiency, nevertheless need process the whole plane of anchor clamps basic body, make whole plane degree keep unanimous, so improved the processing cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that anchor clamps are with high costs in the processing of current auto-parts in batches, the utility model provides a location connecting block, its aim at reduces anchor clamps cost, can also guarantee processingquality simultaneously.

The utility model provides a technical scheme that its technical problem adopted is: a positioning connecting block is in a stepped shaft shape and sequentially comprises a first cylinder, a second cylinder, a third cylinder and a fourth cylinder from right to left, wherein the right end face of the second cylinder is perpendicular to the first cylinder; the right end face of the second cylinder is parallel to the left end face of the third cylinder, and the left end face of the third cylinder is perpendicular to the fourth cylinder.

In the specific use of the utility model, the positioning connecting block is arranged above the positioning surface of the fixture base body, wherein the first cylinder is the positioning part of the positioning connecting block and is inserted into the fixture base body, and the right end surface of the second cylinder is jointed with the fixture base body; the right end face of the second cylinder is parallel to the left end face of the third cylinder, so that the positioning surface of the automobile part is transferred to the left end face of the third cylinder from the plane of the clamp base body in the machining process, the left end face of the third cylinder is perpendicular to the fourth cylinder, and the workpiece is positioned by the fourth cylinder; in the use, two positioning connecting blocks are arranged on the fixture base body, the height of the left end face of a third cylinder of the two positioning connecting blocks is ensured to be consistent in the installation, and the mode of one surface and two pins is formed for positioning and processing.

In the application, the clamp base body only needs to be subjected to finish machining on the position matched with the right end face of the second cylinder of the positioning connecting block, the whole plane of the base body does not need to be machined, the machining cost is reduced, and the problem of high clamp cost in the existing batch machining of automobile parts is solved; in addition, the fourth cylinder and the third cylinder are integrally arranged, and the outer wall positioning surface of the fourth cylinder and the left end surface of the third cylinder are integrally machined, so that the verticality of the left end surface of the fourth cylinder and the left end surface of the third cylinder is improved, and the positioning precision of a workpiece is further improved.

Drawings

Fig. 1 is a schematic perspective view of a positioning connecting block of the present invention;

fig. 2 is a schematic side view of a positioning connecting block of the present invention;

fig. 3 is a schematic front view of a positioning connecting block of the present invention;

in the figure: 101 first cylinder, 102 second cylinder, 1021 second cylinder right-hand member face, 1022 connecting hole, 103 third cylinder, 1031 third cylinder left-hand member face, 104 fourth cylinder, 1041 circular segment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

The positioning connecting block is in a stepped shaft shape and sequentially comprises a first cylinder (101), a second cylinder (102), a third cylinder (103) and a fourth cylinder (104) from right to left, wherein the right end face (1021) of the second cylinder is perpendicular to the first cylinder (101); the right end face (1021) of the second cylinder is parallel to the left end face (1031) of the third cylinder, and the left end face (1031) of the third cylinder is perpendicular to the fourth cylinder (104).

In the specific implementation, the clamp base body is only required to be subjected to finish machining on the position matched with the right end face (1021) of the second cylinder of the positioning connecting block, the whole plane of the base body is not required to be machined, the machining cost is reduced, and the problem of high clamp cost in the existing batch machining of automobile parts is solved; in addition, fourth cylinder (104) and third cylinder (103) integration setting, the outer wall locating surface of fourth cylinder (104) and third cylinder left end face (1031) adopt the integration processing, have improved the straightness that hangs down of fourth cylinder (104) and third cylinder left end face (1031), also further improve the positioning accuracy to the work piece.

Furthermore, in order to avoid the machining errors of all parts and the influence of assembly errors on workpiece positioning, the workpiece cannot be installed due to overlarge errors, and further, each part needs to be subjected to finish machining, the assembly precision is provided, and meanwhile, the positioning hole of the workpiece needs to be subjected to finish machining, so that the machining cost is improved, in the application, the fourth cylinder (104) is provided with four circular notches (1041), so that a diamond pin structure is formed, when the errors are accumulated excessively and the workpiece cannot be installed, the positioning connecting block can be rotated, and the edges of the circular notches (1041) of the fourth cylinder (104) correspond to the positioning center line formed by the two positioning pins; can solve the part through setting up the rounding (1041) and lead to the problem of the unable installation of work piece because of the accumulative error is too big, still remain the arc limit on fourth cylinder (104) this moment, so also can guarantee processingquality, wherein rounding (1041) is when the arc, the effect is better, be the arc when rounding (1041), fourth cylinder (104) outer wall includes the circular arc of four sections indent and the circular arc of four sections evaginations this moment, not only the appearance is pleasing to the eye, when being out of tolerance to the error accumulation, it is more convenient to adjust, and because set up rounding (1041) into the arc, under the prerequisite that does not influence bulk strength, for planar rounding (1041), its adjustment range is bigger.

Further, for the convenience of this application and anchor clamps basic body coupling, second cylinder (102) are provided with connecting hole (1022), pass connecting hole (1022) through the screw in the in-service use and are connected with anchor clamps basic body, and the top of the connecting block of being convenient for fix a position is solid, and in-service use, connecting hole (1022) are the shoulder hole, and the whole of being convenient for is pleasing to the eye, sets up three locating hole simultaneously on second cylinder (102), and it is more even to ensure that the connecting block of fixing a position atress in the processing.

It should be understood that the examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of the present invention, those skilled in the art may make any number of changes and modifications to the present invention, and such equivalents are intended to be encompassed by the claims appended hereto.

Claims

1. A positioning connecting block is characterized by being in a stepped shaft shape and sequentially comprising a first cylinder (101), a second cylinder (102), a third cylinder (103) and a fourth cylinder (104) from right to left, wherein the right end face (1021) of the second cylinder is perpendicular to the first cylinder (101); the right end face (1021) of the second cylinder is parallel to the left end face (1031) of the third cylinder, and the left end face (1031) of the third cylinder is perpendicular to the fourth cylinder (104).

2. Positioning connection block according to claim 1, characterized in that the fourth cylinder (104) is provided with four notches (1041), and the notches (1041) are arc-shaped.

3. Positioning connection block according to claim 1 or 2, characterized in that the second cylinder (102) is provided with a connection hole (1022).

4. Positioning connection block according to claim 3, characterized in that the connection holes (1022) are stepped holes.