CN219532722U

CN219532722U - Fixing clamp for rotating base of friction and wear testing machine

Info

Publication number: CN219532722U
Application number: CN202223517280.2U
Authority: CN
Inventors: 张国亮; 王宇芸; 杨铎; 张孝永; 牛宝艳
Original assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Current assignee: Tianjin University of Technology and Education China Vocational Training Instructor Training Center
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-08-15
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses a fixed clamp used on a rotating base of a friction and wear testing machine, which comprises a rotating base, a fixed plate, n clamping blocks and n sliding blocks, wherein the fixed plate is arranged on the rotating base; the fixed plate is provided with a charging hole, and is arranged on one side surface of the rotating base; n long holes and n sliding grooves are formed in the rotating base, one sliding groove is arranged around one long hole, and the sliding groove is positioned on the surface of the other side of the rotating base; the n clamping blocks are positioned on the long holes of the rotating base and are on the same side with the fixed plate; one sliding block is positioned in one sliding groove and connected with the clamping block, and the sliding block can slide in the sliding groove. According to the utility model, the fixing plate and the workpiece can be more stably fixed through multidirectional fixing by the plurality of clamping blocks and the plurality of fastening bolts, so that the fixing plate and the workpiece are not easy to loosen in the friction experiment process, and the accuracy of an experiment result is influenced.

Description

Fixing clamp for rotating base of friction and wear testing machine

Technical Field

The utility model relates to the technical field of machinery, in particular to a fixing clamp for a rotating base of a friction and wear testing machine.

Background

The jig is a device for fixing a machining object in a machine manufacturing process so as to occupy a correct position for performing a construction or a detection. In order to ensure machining precision and machining efficiency, a fixture is generally used for fixing a workpiece or a semi-finished product, and the fixture is a device for quickly, conveniently and safely installing the workpiece.

The existing friction and wear testing machine is mainly provided with clamps which are adhered or simple two-side fixed, the friction testing process is easy to loosen, the accuracy of the testing result is affected, and workpieces with different shapes and sizes cannot be fixed in the existing testing machine.

Disclosure of Invention

In order to solve the defects of the technical scheme, the utility model aims to provide a fixing clamp for a rotating base of a friction and wear testing machine.

The aim of the utility model is achieved by the following technical scheme.

A fixed clamp used on a rotating base of a friction and wear testing machine comprises the rotating base, a fixed plate, n clamping blocks and n sliding blocks;

the fixed plate is provided with a charging hole, and is arranged on one side surface of the rotating base; n long holes and n sliding grooves are formed in the rotating base, one sliding groove is arranged around one long hole, and the sliding groove is positioned on the surface of the other side of the rotating base; the n clamping blocks are positioned on the long holes of the rotating base and are on the same side with the fixed plate; one sliding block is positioned in one sliding groove and connected with the clamping block, and the sliding block can slide in the sliding groove.

In the technical scheme, 2 limiting rods are arranged in the long holes at intervals, and the clamping block and the sliding block are positioned between the 2 limiting rods.

In the above technical solution, n is 3.

In the above technical solution, 3 long holes are uniformly distributed along the radial direction of the rotating base, and the front end portions of the long holes are located below the fixing plate.

In the technical scheme, the sliding block is fixedly connected with the clamping block through a screw.

In the above technical scheme, evenly set up 4 screw holes along circumference on the lateral wall of fixed plate screw hole internal mounting fastening bolt, fastening bolt link up the fixed plate, its end is located the charging hole is inside.

In the above technical scheme, a plurality of screws are mounted on the rotating base.

In the above technical scheme, 3 circular anti-skid lines are arranged on the upper surface of the rotating base.

In the above technical scheme, the shape of the fixed plate and the rotating base are cylindrical, and the fixed plate and the rotating base are concentric.

In the technical scheme, the charging hole is a square hole.

The utility model has the advantages and beneficial effects that:

1. according to the utility model, as the fastening bolt is arranged on the fixing plate, the tail end of the fastening bolt is positioned in the charging hole, and the length of the fastening bolt entering the material transferring hole is adjusted, so that the charging hole can fix square and round workpieces, and the application field is wide.

2. According to the utility model, the clamping block is driven to move along the radial direction on the rotating base by adjusting the position of the sliding block in the sliding groove, so that the fixing plates with different sizes can be fixed, the charging holes with different sizes can be formed in the fixing plates with different sizes, and the fixing device is wide in application range.

3. According to the utility model, the fixing plate and the workpiece can be more stably fixed through multidirectional fixing by the plurality of clamping blocks and the plurality of fastening bolts, so that the fixing plate and the workpiece are not easy to loosen in the friction experiment process, and the accuracy of an experiment result is influenced.

Drawings

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

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

fig. 3 is a schematic view of a part of the structure of the present utility model.

Wherein,,

1: rotating base, 1-1: long holes, 1-2: sliding groove, 2: fixed plate, 2-1: charging hole, 3: clamping block, 4: sliding block, 5: screw rod, 6: fastening bolt, 7: screw, 8: anti-skid patterns, 9: rotating cap, 10: and a limit rod.

Other relevant drawings may be made by those of ordinary skill in the art from the above figures without undue burden.

Detailed Description

The technical scheme of the utility model is further described below with reference to specific embodiments.

Example 1

As shown in fig. 1-3, a fixing clamp for a rotating base of a friction and wear testing machine comprises a rotating base 1, a fixing plate 2, n clamping blocks 3 and n sliding blocks 4, wherein a charging hole 2-1 is formed in the fixing plate 2 and is used for placing a workpiece, and the fixing plate 2 is arranged on one side surface of the rotating base 1; n long holes 1-1 and n sliding grooves 1-2 are formed in the rotating base 1, one sliding groove 1-2 is arranged around one long hole 1-1, and the sliding groove 1-2 is positioned on the surface of the other side of the rotating base 1; n clamping blocks 3 are positioned on the long holes 1-1 of the rotating base 1 and are positioned on the same side of the fixed plate 2, so as to clamp the fixed plate 2; one of the sliding blocks 4 is located in one of the sliding grooves 1-2 and is connected to the clamping block 3, and the sliding block 4 is slidable in the sliding groove 1-2.

In this embodiment, the rotating base 1 and the fixed plate 2 are both cylindrical, the fixed plate 2 is concentric with the rotating base 1, and the charging hole 2-1 is a square hole and is located at the center of the fixed plate 2; the n is 3,3 long holes 1-1 are uniformly distributed along the radial direction of the rotating base 1, and the front end part of the long holes 1-1 is positioned below the fixed plate 2, so that when the sliding block 4 drives the clamping block 3 to move in the long holes 1-1, the front end of the clamping block 3 can be in contact with the fixed plate 2 and clamp the fixed plate 2, and meanwhile, as the long holes 1-1 are long strip-shaped holes arranged along the radial direction of the rotating base 1, the positions of the clamping block 3 in the long holes 1-1 can be adjusted, so that the fixed plates 2 with different diameters can be fixed; the sliding block 4 is fixedly connected with the clamping block 3 through a screw 5.

Specifically, the fixing plate 2 and the clamping block 3 are both positioned on the upper surface of the rotating base 1, and the sliding block 4 is positioned on the lower surface of the rotating base 1.

Example 2

As shown in fig. 1-3, on the basis of embodiment 1, 2 limit rods 10 are arranged in the long hole 1-1 at intervals, the clamping block 3 and the sliding block 4 are positioned between the 2 limit rods 10 to limit the moving position of the clamping block 3 on the rotating base 1, 4 threaded holes are uniformly formed in the side wall of the fixed plate 2 along the circumferential direction, fastening bolts 6 are installed in the threaded holes, the fastening bolts 6 penetrate through the fixed plate 2, the tail ends of the fastening bolts 6 are positioned in the charging hole 2-1, when a workpiece is placed in the charging hole 2-1, the workpiece is fixed in the charging hole 2-1 by adjusting the length of the 4 fastening bolts 6, and workpieces with different sizes can be fixed in the charging hole 2-1 by adjusting the length of the fastening bolts 6 entering the charging hole 2-1.

Example 3

As shown in fig. 1 and 2, on the basis of embodiments 1 and 2, a plurality of screws 7 are installed on the swivel base 1 to fix the swivel base 1; the upper surface of the rotating base 1 is provided with 3 circular anti-skid stripes 8, and the 3 anti-skid stripes 8 are concentric with the rotating base 1.

Example 4

On the basis of the embodiments 1-3, as shown in fig. 1-3, the sliding groove 1-2 is a round head key groove, the upper end of the clamping block 3 is L-shaped, the screw 5 is positioned on the L-shaped vertical support, a rotary cap 9 is fixedly arranged at the upper end of the screw 5, lines for preventing sliding are arranged on the outer surface of the rotary cap 9, and the rotary base 1, the sliding block 4, the clamping block 3 and the fixing plate 2 are made of 45 # steel.

The working principle is that when the rotary base is used, the fixed plate 2 is arranged at the center of the upper surface of the rotary base 1, and the clamping block 3 is driven to move in the sliding groove 1-2 by the adjusting sliding block 4, so that the clamping block 3 is in contact with the fixed plate 2 and the fixed plate 2 is fixed on the rotary base 1; the workpiece is placed in the charging hole 2-1, and the workpiece is fixed in the charging hole 2-1 by adjusting the fastening bolt 6.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature's illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "under" other elements or features would then be oriented "over" the other elements or features. Thus, the exemplary term "lower" may encompass both an upper and lower orientation. The device may be otherwise positioned (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Moreover, relational terms such as "first" and "second", and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.

The foregoing has described exemplary embodiments of the utility model, it being understood that any simple variations, modifications, or other equivalent arrangements which would not unduly obscure the utility model may be made by those skilled in the art without departing from the spirit of the utility model.

Claims

1. The fixing clamp for the rotating base of the friction and wear testing machine is characterized by comprising the rotating base, a fixing plate, n clamping blocks and n sliding blocks;

2. The fixing clamp according to claim 1, wherein 2 limit rods are arranged in the long holes at intervals, and the clamping block and the sliding block are located between the 2 limit rods.

3. The fixture of claim 1, wherein n is 3.

4. The fixing jig according to claim 2, wherein 3 of the long holes are uniformly distributed in a radial direction of the swivel base, and a front end portion of the long hole is located below the fixing plate.

5. The fixing clamp according to claim 1, wherein the sliding block and the clamping block are fixedly connected by a screw.

6. The fixing clamp according to claim 1, wherein 4 threaded holes are uniformly formed in the side wall of the fixing plate in the circumferential direction, fastening bolts are installed in the threaded holes, the fastening bolts penetrate through the fixing plate, and the tail ends of the fastening bolts are located inside the charging holes.

7. The fixture of claim 1, wherein a plurality of screws are mounted on the swivel base.

8. The fixture of claim 1, wherein 3 circular anti-skid threads are provided on the upper surface of the swivel base.

9. The fixture of claim 1, wherein the stationary plate and the rotating base are cylindrical in shape and concentric.

10. The holding fixture of claim 1, wherein the loading hole is a square hole.