Three-coordinate measuring clamp for rapidly clamping shaft sleeve parts

Abstract

The utility model relates to the technical field of detection clamps, in particular to a three-coordinate measuring clamp for quickly clamping shaft sleeve type parts, which comprises a measuring worktable, support frames are mounted on two sides of the top end of the measuring worktable, cantilevers are mounted at the top ends of the support frames, one side of each cantilever is fixedly connected with a fixing column, and the other side of each cantilever is fixedly connected with a positioning pin. One end of the fixing column is fixedly connected with the limiting block, the clamping head is pushed through the spring to automatically clamp a workpiece, rapid clamping can be completed without the help of an extra tool, and the clamping efficiency is remarkably improved; the clamping heads are symmetrically arranged, so that shaft sleeve parts can be stably clamped, the positioning precision of workpieces in the measurement process is ensured, and the repeatability and reliability of three-coordinate measurement are improved; meanwhile, the clamping head has certain elastic adjusting capacity and can adapt to shaft sleeve type workpieces of different specifications, and the universality and adaptability of the clamp are enhanced; the whole clamp is easy and convenient to operate, facilitates quick replacement of workpieces, is particularly suitable for batch detection scenes, and has good practical application value and popularization prospects.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection fixture technical field, especially a kind of three-coordinate measurement fixture of quick clamping shaft sleeve class parts. BACKGROUND

[0002] In the machining and assembly process, shaft sleeve class parts are usually required to be precisely detected by three-coordinate measuring instrument due to its structural characteristics, higher requirements for dimensional accuracy and positional accuracy. In order to ensure the accuracy of measurement data, the workpiece must be firmly clamped on the measurement platform before measurement. However, the existing three-coordinate measurement fixture is mostly general fixture or manual fastening structure, which not only has complicated clamping process and low efficiency, but also is difficult to realize rapid and repeated positioning, which easily causes workpiece position deviation and affects the accuracy and repeatability of measurement results.

[0003] In addition, part of the fixture structure is complex, and the adjustment and operation requirement is higher, which is difficult to meet the production demand of rapid detection and batch measurement, especially when facing compact structure shaft sleeve class parts, it is more difficult to balance clamping efficiency and measurement accuracy. Therefore, a three-coordinate measurement special fixture with simple structure, convenient operation, high clamping efficiency and accurate positioning and repeated clamping is needed to improve the stability and measurement efficiency of shaft sleeve class parts in the measurement process, and a three-coordinate measurement fixture for quick clamping shaft sleeve class parts is proposed. UTILITY MODEL CONTENTS

[0004] In view of the above problems, the utility model provides a three-coordinate measurement fixture for quick clamping shaft sleeve class parts, which aims to solve the problems of complicated clamping steps, low efficiency and large repeated positioning error of shaft sleeve class workpieces in the existing three-coordinate measurement process.

[0005] The technical scheme of the utility model is:

[0006] A three-coordinate measurement fixture for quick clamping shaft sleeve class parts, comprising a measurement workbench, the top of the measurement workbench is provided with a support frame on both sides, the top of the support frame is provided with a cantilever, one side of the cantilever is fixedly connected with a fixed column, one end of the fixed column is fixedly connected with a limiting block, the surface of the fixed column is movably sleeved with a clamping head, the surface of the fixed column is further provided with a spring, the top and bottom of the clamping head are fixedly connected with a clamping plate, and the included angle between the clamping plate and the clamping head is less than forty-five degrees.

[0007] In further technical scheme, the measurement workbench is of plate structure, and a plurality of mounting holes are formed in the surface of the measurement workbench.

[0008] In a further technical solution, the bottom end of the support frame is integrally formed with a support frame base, the surface of the support frame base is provided with a positioning groove, and the support frame base is fixedly installed on the measuring workbench by a positioning bolt.

[0009] In a further technical solution, a first connecting part is provided at the top of the support frame, a first bolt hole is provided at the top of the support frame and at the position of the first connecting part, a second connecting part is provided on the surface of the cantilever, a second bolt hole is provided on the surface of the cantilever and at the position of the second connecting part, and the cantilever is fixedly installed at the top of the support frame by the provided bolts and is arranged vertically.

[0010] The beneficial effects of this utility model are:

[0011] The clamping head automatically clamps the workpiece by being driven by a spring, enabling rapid clamping without the need for additional tools and significantly improving clamping efficiency. The symmetrical arrangement of the clamping heads ensures stable clamping of bushing-type parts, guaranteeing the positioning accuracy of the workpiece during measurement and improving the repeatability and reliability of coordinate measuring machine (CMM). Simultaneously, the clamping heads have a certain degree of elastic adjustment capability, adapting to bushing-type workpieces of different specifications, enhancing the versatility and adaptability of the fixture. The entire fixture is easy to operate and facilitates quick workpiece change, making it particularly suitable for batch testing scenarios and possessing significant practical application value and promising prospects for widespread adoption. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0013] Figure 2 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model;

[0014] Figure 3 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model;

[0015] Figure 4 This is a schematic diagram of the cantilever structure according to an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Measuring workbench; 2. Support frame; 3. Support frame base; 4. Cantilever; 5. Clamping head; 6. First bolt hole; 7. Positioning groove; 8. First connecting part; 9. Second connecting part; 10. Second bolt hole; 11. Fixing column; 12. Spring; 13. Limiting block; 14. Clamping plate. Detailed Implementation

[0018] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0019] Example:

[0020] like Figures 1-4 As shown, a coordinate measuring fixture for quickly clamping bushing-type parts includes a measuring worktable 1. Support frames 2 are mounted on both sides of the top of the measuring worktable 1. A cantilever 4 is mounted on the top of each support frame 2. A fixed post 11 is fixedly connected to one side of each cantilever 4. A limit block 13 is fixedly connected to one end of each fixed post 11. A clamping head 5 is movably sleeved on the surface of the fixed post 11. A spring 12 is also provided on the surface of the fixed post 11. Clamping plates 14 are fixedly connected to both the top and bottom of the clamping head 5. The angle between the clamping plate 14 and the clamping head 5 is less than 45 degrees. The two support frames 2 can be installed on both sides of the measuring worktable 1 according to the size of the part. The clamping head 5 and clamping plates 14 clamp the parts on both sides. The parts are clamped by the elastic force of the spring 12. Under the action of the spring 12, the clamping head 5 can be elastically adjusted within a certain range according to the change in the outer diameter of the bushing-type workpiece, achieving rapid clamping of workpieces of different specifications.

[0021] In another embodiment, such as Figure 1 and Figure 2 As shown, the measuring worktable 1 has a plate-like structure, and multiple mounting holes are provided on the surface of the measuring worktable 1. The bottom end of the support frame 2 is integrally formed with a support frame base 3, and the surface of the support frame base 3 is provided with a positioning groove 7. The support frame base 3 is fixedly installed on the measuring worktable 1 by positioning bolts. The support frame base 3 is placed at the designated position on the measuring worktable 1 according to the size of the workpiece, and then the positioning bolts are used to connect through the mounting holes and the positioning groove 7, so that the support frame base 3 can be fixed on the measuring worktable 1.

[0022] In another embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the top of the support frame 2 is provided with a first connecting part 8, and the top of the support frame 2 and the position of the first connecting part 8 are provided with a first bolt hole 6. The surface of the cantilever 4 is provided with a second connecting part 9, and the surface of the cantilever 4 and the position of the second connecting part 9 are provided with a second bolt hole 10. The cantilever 4 is fixedly installed on the top of the support frame 2 by the provided bolts and is arranged vertically. By connecting the second connecting part 9 on the cantilever 4 and the first connecting part 8 on the support frame 2, and then using bolts to pass through the first bolt hole 6 and the second bolt hole 10 for installation, the cantilever 4 can be fixedly installed on the support frame 2, thereby improving the disassembly and assembly effect of the device.

[0023] The above embodiments merely illustrate specific implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A coordinate measuring fixture for quick clamping of bushing-type parts, comprising a measuring table (1), characterized in that: The measuring workbench (1) has support frames (2) installed on both sides of its top end. A cantilever (4) is installed on the top end of the support frame (2). A fixed column (11) is fixedly connected to one side of the cantilever (4). A limit block (13) is fixedly connected to one end of the fixed column (11). A clamping head (5) is movably sleeved on the surface of the fixed column (11). A spring (12) is also provided on the surface of the fixed column (11). A clamping plate (14) is fixedly connected to both the top and bottom ends of the clamping head (5). The angle between the clamping plate (14) and the clamping head (5) is less than 45 degrees.

2. The coordinate measuring fixture for quick clamping of bushing-type parts according to claim 1, characterized in that: The measuring worktable (1) has a plate-like structure, and multiple mounting holes are provided on the surface of the measuring worktable (1).

3. The coordinate measuring fixture for quick clamping of bushing-type parts according to claim 1, characterized in that: The bottom end of the support frame (2) is integrally formed with a support frame base (3), and the surface of the support frame base (3) is provided with a positioning groove (7). The support frame base (3) is fixedly installed on the measuring workbench (1) by a positioning bolt.

4. A coordinate measuring fixture for quick clamping of bushing-type parts according to claim 1, characterized in that: The support frame (2) has a first connecting part (8) at its top end, and a first bolt hole (6) is provided at the top end of the support frame (2) and at the position of the first connecting part (8). The cantilever (4) has a second connecting part (9) on its surface, and a second bolt hole (10) is provided at the position of the second connecting part (9) on its surface. The cantilever (4) is fixedly installed on the top end of the support frame (2) by bolts and is arranged vertically.

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