Positioning and clamping device for finish machining process of coupler

Abstract

The utility model provides a locating and clamping device for coupling finish machining procedure, which comprises a right-angle base, a first locating block and an auxiliary support, the right-angle base is provided with a bottom plate and a vertical plate connected and fixed on the bottom plate, and an included angle formed by the vertical plate and the bottom plate is a right angle; a first through hole is formed in the upper part of the vertical plate, and a group of bolt connecting holes are formed in the periphery of the first through hole of the vertical plate; a second through hole and a plurality of first positioning block mounting holes are formed in the lower part of the vertical plate; the first positioning block is fixedly connected with the first positioning block mounting hole through a bolt, a first middle hole is formed in the first positioning block, and the first middle hole corresponds to the second through hole in position; a positioning pin hole for mounting a positioning pin and a second positioning block mounting hole for mounting a second positioning block are further formed in the first positioning block; and the auxiliary support is arranged on the bottom plate.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a positioning and clamping device for the precision machining process of couplings. Background Technology

[0002] A coupling is a mechanical part used to connect the drive mechanism of a motor to the output shaft so that they rotate together. There are many types of couplings. For couplings where the holes connecting the motor drive mechanism and the output shaft are not on the same axis, finishing is required after rough machining. Finishing, also known as W2 machining, includes finishing the inner bore of the coupling and finishing the circumference of the coupling.

[0003] The conventional approach in existing technology is to clamp the coupling onto a general-purpose fixture on a machine tool. However, the structure of these general-purpose fixtures is not perfectly suited for this type of coupling. Therefore, the clamping and positioning work requires repeated adjustments by the operator, which is time-consuming. Moreover, machining different surfaces requires multiple disassembly and reassembly adjustments to the machining area, making the operation cumbersome and inefficient. In addition, it is difficult to guarantee the stability and consistency of the clamping. Utility Model Content

[0004] In order to solve the above problems, the present invention aims to provide a positioning and clamping device for the precision machining process of couplings.

[0005] To achieve the above objectives, this utility model provides a positioning and clamping device for the precision machining process of couplings, comprising: a right-angle base, a first positioning block, and an auxiliary support. The right-angle base has a base plate and a vertical plate fixed to the base plate, the angle formed by the vertical plate and the base plate being a right angle. A first through hole is provided at the upper part of the vertical plate, and a set of bolt connection holes are provided around the first through hole. A second through hole and multiple first positioning block mounting holes are provided at the lower part of the vertical plate. The first positioning block is bolted to the first positioning block mounting holes, and the first positioning block has a first intermediate hole, the position of which corresponds to the second through hole. The first positioning block also has a positioning pin hole for installing a positioning pin and a second positioning block mounting hole for installing a second positioning block. The auxiliary support is provided on the base plate.

[0006] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following characteristics: there are two positioning pin holes, which are arranged symmetrically about the first intermediate hole, and the two positioning pins are installed in the two positioning pin holes respectively.

[0007] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following characteristics: the first positioning block is a rectangular positioning block, and the first intermediate hole is a round hole.

[0008] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following features: it further includes a second positioning block, the second positioning block has a second intermediate hole, the second positioning block is bolted to the second positioning block mounting hole, and the position of the second intermediate hole corresponds to that of the first intermediate hole.

[0009] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following characteristics: the second positioning block is a circular positioning block, and the second intermediate hole is a circular hole.

[0010] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following features: the auxiliary support includes a cylindrical structure and a support bolt, the cylindrical structure is bolted and fixed on the base plate, the top surface of the cylindrical structure is provided with bolt holes, and the support bolt is installed in the bolt holes.

[0011] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following features: the right-angle base further includes a front triangular support and a rear triangular support; the two front triangular supports are fixed on the left and right sides in front of the vertical plate and are connected and fixed to the base plate; the two rear triangular supports are fixed on the left and right sides behind the vertical plate and are connected and fixed to the base plate.

[0012] Furthermore, the positioning and clamping device for the precision machining process of couplings provided by this utility model may also have the following characteristics: the front triangular support is a triangular frame structure; the rear triangular support is a triangular plate structure.

[0013] The function and effects of this utility model:

[0014] The positioning and clamping device for the precision machining of couplings provided by this utility model has a first positioning block with a positioning pin hole and a second positioning block mounting hole. Positioning pins or second positioning blocks can be further installed according to the workpiece. The workpiece is fixed on a vertical plate and precisely positioned by the positioning pins or second positioning blocks. Simultaneously, an auxiliary support structure provides support for the lower end face of the workpiece. The positioning and clamping device proposed by this utility model can achieve clamping and fixing of various types of workpieces. The device has a compact structure, directly connecting and fixing to the workpiece via threads, eliminating the need for a pressure plate and avoiding machining interference. Furthermore, the first and second through holes allow for simultaneous machining of both the front and back sides of the workpiece's inner hole, making it suitable for the precision machining of couplings. Compared to general-purpose fixtures, the positioning and clamping device of this utility model reduces manual intervention and improves clamping stability and consistency. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the positioning and clamping device for the precision machining process of couplings in Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the usage state of the positioning and clamping device for the precision machining process of couplings in Embodiment 1 of this utility model. In the figure, (a) and (b) correspond to different types of workpieces.

[0017] Figure 3 This is a schematic diagram of the right-angle base in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning and clamping device for the precision machining process of couplings in Embodiment 2 of this utility model.

[0019] Figure 5 The schematic diagram of the positioning and clamping device for the precision machining process of couplings in Embodiment 2 of this utility model shows that (a) and (b) in the figure correspond to different types of workpieces. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments, in conjunction with the accompanying drawings, will specifically illustrate the technical solution of this utility model.

[0021] <Example 1>

[0022] See Figure 1 This embodiment provides a positioning and clamping device for the precision machining process of couplings, including: a right-angle base 1, a first positioning block 2, a positioning pin 3, and an auxiliary support 4.

[0023] See Figure 3 The right-angle base 1 comprises a base plate 11, a vertical plate 12, front triangular supports 13, and rear triangular supports 14, all integrally welded together. The vertical plate 12 is connected and fixed to the base plate 11, forming a right angle with it. The two front triangular supports 13 are fixed to the left and right sides of the front of the vertical plate 12 and connected to the base plate 11; the front triangular supports 13 are triangular frame structures. The two rear triangular supports 14 are fixed to the left and right sides of the rear of the vertical plate 12 and connected to the base plate 11; the rear triangular supports 14 are triangular plate structures.

[0024] See Figure 1 and Figure 3 The upper part of the vertical plate 12 has a first through hole 12a. The first through hole 12a is a clearance hole for workpiece machining, and the shape of the first through hole 12a is set to match the shape of the hole in the workpiece. A set of bolt connection holes 12c are provided around the first through hole 12a for fixing the workpiece by bolt connection.

[0025] See Figure 1 and Figure 3 The lower part of the vertical plate 12 is provided with a second through hole 12b and a plurality of first positioning block mounting holes. The second through hole 12b is a clearance hole during workpiece processing, and the shape of the second through hole 12b is set to match the hole shape of the workpiece.

[0026] See Figure 2 and Figure 3 The diameter of the first through hole 12a is larger than that of the second through hole 12b. The first through hole 12a corresponds to the machining of the large hole part of the workpiece (coupling), and the second through hole 12b corresponds to the machining of the small hole part of the workpiece.

[0027] See Figure 1 The first positioning block 2 is fixed to the lower part of the vertical plate 12 by bolts. The first positioning block 2 has a first central hole 2a. The first positioning block 2 is a rectangular positioning block, and the first central hole is a round hole. The position of the first central hole 2a corresponds to that of the second through hole 12b. The first positioning block 2 also has a set of second positioning block mounting holes 2b around the first central hole for mounting and fixing the second positioning block.

[0028] The first positioning block 2 also has two positioning pin holes, which are symmetrically arranged about the left and right sides of the first middle hole. The two positioning pins 3 are installed in the positioning pin holes respectively, and the positioning pins 3 are used for pin hole positioning of the workpiece.

[0029] An auxiliary support 4 is mounted on the base plate 11. The auxiliary support 4 provides support for the lower end face of the workpiece. The auxiliary support 4 includes a cylindrical structure 41 and support bolts 42. The cylindrical structure 41 is fixed to the base plate 11 by bolts, and bolt holes are provided on the top surface of the cylindrical structure 41, in which the support bolts 42 are installed. The support height can be adjusted by adjusting the depth to which the support bolts 42 are screwed into the bolt holes.

[0030] See Figure 2 The positioning and clamping device for the coupling finishing process provided in this embodiment can clamp workpieces of the types shown in (a) and (b) in the figure, and is not limited thereto. The device in this embodiment can also clamp other types of workpieces, which will not be listed here.

[0031] <Example 2>

[0032] See Figure 4 This embodiment provides a positioning and clamping device for the precision machining process of couplings.

[0033] The difference between this embodiment and Embodiment 1 is that the device in this embodiment also includes a second positioning block 5. The second positioning block 5 has a second intermediate hole, and the second positioning block 5 is a circular positioning block with a circular intermediate hole. The first positioning block 2 is provided with a second positioning block mounting hole 2b for mounting the second positioning block. The second positioning block 5 is bolted to the second positioning block mounting hole, and the second intermediate hole corresponds to the position of the first intermediate hole.

[0034] See Figure 5 The positioning and clamping device for the coupling finishing process provided in this embodiment can clamp workpieces of the types shown in (a) and (b) in the figure, and is not limited thereto. The device in this embodiment can also clamp other types of workpieces, which will not be listed here.

[0035] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A positioning and clamping device for the precision machining process of couplings, characterized in that, include: Right-angle base, first positioning block, auxiliary support, The right-angle base has a base plate and a vertical plate connected and fixed to the base plate, wherein the angle formed by the vertical plate and the base plate is a right angle. The upper part of the vertical plate is provided with a first through hole, and a set of bolt connection holes are provided around the first through hole; The lower part of the vertical plate is provided with a second through hole and multiple first positioning block mounting holes; The first positioning block is bolted to the first positioning block mounting hole, and the first positioning block has a first intermediate hole, which corresponds to the position of the second through hole. The first positioning block is also provided with a positioning pin hole for installing a positioning pin and a second positioning block mounting hole for installing a second positioning block. The auxiliary support is mounted on the base plate.

2. The positioning and clamping device for the precision machining process of couplings as described in claim 1, characterized in that: in, There are two positioning pin holes, which are arranged symmetrically about the first middle hole, and the two positioning pins are installed in the two positioning pin holes respectively.

3. The positioning and clamping device for the precision machining process of couplings as described in claim 1, characterized in that: in, The first positioning block is a rectangular positioning block, and the first central hole is a round hole.

4. The positioning and clamping device for the precision machining process of couplings as described in claim 1, characterized in that, Also includes: The second positioning block has a second intermediate hole. The second positioning block is bolted to the second positioning block mounting hole, and the second intermediate hole corresponds to the position of the first intermediate hole.

5. The positioning and clamping device for the precision machining process of couplings as described in claim 4, characterized in that: in, The second positioning block is a circular positioning block, and the second central hole is a circular hole.

6. The positioning and clamping device for the precision machining process of couplings as described in claim 1, characterized in that: in, The auxiliary support includes a cylindrical structure and support bolts. The cylindrical structure is bolted and fixed to the base plate. Bolt holes are provided on the top surface of the cylindrical structure, and the support bolts are installed in the bolt holes.

7. The positioning and clamping device for the precision machining process of couplings as described in claim 1, characterized in that: in, The right-angle base also includes a front triangular support and a rear triangular support; The two front triangular supports are fixed to the left and right sides of the front of the vertical plate and are connected and fixed to the base plate; The two rear triangular supports are fixed to the left and right sides behind the vertical plate and are connected and fixed to the base plate.

8. The positioning and clamping device for the precision machining process of couplings as described in claim 7, characterized in that: in, The front triangular support is a triangular frame structure; The rear triangular support is a triangular plate-like structure.

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