Mechanical precision part positioning clamp

Abstract

The utility model relates to the technical field of mechanical precision part production, in particular to a mechanical precision part positioning clamp which comprises a base, four positioning rods, a machined part and a limiting device, the four positioning rods are installed at the four corners of the base respectively, the machined part is placed on the surface of the base, and the limiting device is arranged on the surface of the base and comprises a driving motor. The driving motor is fixedly connected with the surface of the base, the driving end of the driving motor is in threaded connection with a sliding disc, a pull block is placed on the surface of the base, a supporting block is fixedly connected to the surface of one side of the pull block, an adjusting strip is rotationally connected between the supporting block and the sliding disc, and an abutting plate is fixedly connected to the surface of the pull block. According to the positioning clamp, by arranging the limiting device, a worker can effectively and conveniently limit machined parts of different specifications, the situation that the worker is not matched when machining large machined parts is avoided, the practicability of the positioning clamp is further improved, and meanwhile the worker can rapidly adjust the positioning clamp.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical precision part production technical field especially relates to a mechanical precision part positioning fixture. BACKGROUND

[0002] ‌Mechanical precision machining part refers to those mechanical parts with high precision and high requirements, its machining precision is usually higher than 0.05mm, and is commonly used in high-precision and high-quality equipment, such as semiconductor, medical equipment, precision instrument field‌, the manufacturing process of these machining parts needs to use high-precision machining equipment and process, such as numerical control machine tool, ultra-precision machining, electric spark machining, laser processing etc.‌, precision machining parts are widely used in semiconductor, medical equipment, precision instrument field, such as micro motor, manipulator, optical module, precision sensor etc.‌, with the development of science and technology, its application field expands continuously, including robot, aviation and other high-level equipment field‌, mechanical precision machining part positioning fixture refers to the device used for fixing machining object in the process of mechanical manufacturing, so that it occupies the correct position, in order to carry out accurate machining, the main function of the fixture is to ensure that the workpiece does not deform in the process of machining, so as to improve the machining precision and product quality.

[0003] The existing equipment such as CN218081498U, a kind of CNC machining positioning fixture for industrial precision machining part, including support bottom plate, the upper end of the support bottom plate is provided with a limiting mechanism, the limiting mechanism includes bearing fixedly arranged on the upper end of support bottom plate, the inner side of the bearing movably is provided with control rod, the upper end of the control rod is fixedly provided with threaded shaft, the outer side of the threaded shaft is provided with adjusting ring with screw, the one end of the adjusting ring is fixedly provided with connecting frame, the inner side of the connecting frame movably is provided with connecting rod, the inside of the connecting rod movably is provided with connecting shaft.The utility model discloses a kind of CNC machining positioning fixture for industrial precision machining part, by rotating knob so that threaded shaft rotates to make adjusting ring move along threaded shaft simultaneously connecting rod push control frame to move to make control frame drive clamping washer to be clamped to the inner wall of the inside of circular ring workpiece, reach the purpose of facilitating the centring clamping of circular ring workpiece.

[0004] When the worker needs to process the machining part, the worker places the machining part on the positioning fixture so that the positioning fixture clamps the machining part, but the existing positioning fixture usually adopts manual adjustment mode to position the machining part in the process of use, and the existing positioning fixture is inconvenient to clamp other specifications of machining parts, so that the worker needs to replace the positioning fixture of specification adaptation to position the machining part, and then the practicability of the positioning fixture is reduced. UTILITY MODEL CONTENTS

[0005] The utility model discloses a mechanical precision part positioning fixture which has the advantages of convenient operation, high positioning accuracy and high positioning stability.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a mechanical precision part positioning fixture, including base, locating rod, processing piece and limiting device, four locating rods are installed at the four corners of the base respectively, the processing piece is placed on the surface of the base, the limiting device is arranged on the surface of the base, the limiting device includes drive motor, the drive motor is fixedly connected with the surface of the base, the drive end of drive motor is connected with sliding disc through screw thread, the surface of the base is placed with pull block, the surface of pull block one side is fixedly connected with supporting block, the supporting block is rotatably connected with adjusting strip between sliding disc, the surface of pull block is fixedly connected with abutment plate, four abutment plates are inserted with the inner side of processing piece, the surface of the base is provided with four pairs of guide grooves, four pairs of guide grooves are arranged in annular, and the guide groove can be matched with the base to reach the purpose of guiding the limiting block.

[0007] Preferably, the surface of the four pull blocks is fixedly connected with two limiting blocks, the surface of the two limiting blocks is slidably connected with the guide groove, and the limiting block can be matched with the pull block to achieve the purpose of guiding the pull block.

[0008] Preferably, the surface of the abutment plate is provided with an adjusting device, the adjusting device comprises a through hole, two through holes are arranged on the surface of the abutment plate, the two through holes are symmetrically arranged, and the through hole can be matched with the abutment plate to achieve the purpose of supporting the threaded rod.

[0009] Preferably, the surface of the two through holes is connected with a threaded rod, the surface of the threaded rod is connected with a nut through screw thread, and the two nuts are placed on the surface of the abutment plate.

[0010] Preferably, one end of the two threaded rods is fixedly connected with a stabilizing plate, and the stabilizing plate is placed on the surface of the processing piece.

[0011] Preferably, a plurality of clamping grooves are arranged on the side of the abutment plate close to the processing piece, the abutment plate is placed on the surface of the clamping groove, and the clamping groove can be matched with the abutment plate to achieve the purpose of supporting the stabilizing plate.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1. The utility model discloses a limiting device is set up, and the drive motor is started, and the drive motor adjusts the sliding disc, and the sliding disc drives the adjusting strip, and the adjusting strip pushes the support block, and the support block pushes the pull block, and the pull block slides and drives the abutment plate and the limiting block, and the guide groove guides the limiting block, and the abutment plate is opposite with the inside of workpiece, and the drive motor is closed, through setting up the limiting device, can effectively facilitate the worker to the workpiece of different specifications and position, avoid the worker when processing larger workpiece and appear the situation of not adapting, and then improved the practicality of positioning fixture, simultaneously is favorable to the worker fast regulation positioning fixture. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 A three-dimensional structure schematic diagram of the utility model is provided for the mechanical precision part positioning fixture;

[0015] Figure 2 The limiting device structure schematic diagram of the utility model is provided for the mechanical precision part positioning fixture;

[0016] Figure 3 The utility model provides a kind of mechanical precision part positioning fixture for the Figure 2 structure schematic diagram of place A in it;

[0017] Figure 4 The adjusting device structure schematic diagram of the utility model is provided for the mechanical precision part positioning fixture;

[0018] Figure 5 The utility model provides a kind of mechanical precision part positioning fixture for Figure 4 structure schematic diagram of place B in it.

[0019] Legend:

[0020] 1, base;2, positioning rod;3, limiting device;31, sliding disc;32, adjusting strip;33, guide groove;34, support block;35, limiting block;36, pull block;37, abutment plate;4, adjusting device;41, stabilizing plate;42, threaded rod;43, nut;44, perforation;45, clamping groove;5, workpiece. DETAILED DESCRIPTION

[0021] Please refer to Figures 1-5 , the utility model provides a technical scheme: a kind of mechanical precision workpiece 5 positioning fixture, including base 1, positioning rod 2, workpiece 5 and limiting device 3, four positioning rods 2 are respectively installed at the four corners of base 1, workpiece 5 is placed on the surface of base 1, and limiting device 3 is set on the surface of base 1.

[0022] The specific setting and effect of its limiting device 3 and adjusting device 4 are described below.

[0023] In the embodiment, the limiting device 3 comprises a driving motor 38 fixedly connected to the surface of the base 1, and a sliding disc 31 threadedly connected to the driving end of the driving motor 38. The surface of the base 1 is provided with a pull block 36, and the surface of one side of the pull block 36 is fixedly connected with a supporting block 34. The supporting block 34 is rotatably connected with an adjusting strip 32 between the supporting block 34 and the sliding disc 31. The surface of the pull block 36 is fixedly connected with a resisting plate 37, and the four resisting plates 37 are inserted into the inner side of the workpiece 5.

[0024] Specifically, the surface of the base 1 is provided with four pairs of guide grooves 33 arranged in a ring shape. The guide grooves 33 can cooperate with the base 1 to guide the limiting block 35.

[0025] Specifically, the surface of the four pull blocks 36 is fixedly connected with two limiting blocks 35, and the two limiting blocks 35 are slidably connected with the surface of the guide groove 33.

[0026] In the embodiment, the limiting block 35 can cooperate with the pull block 36 to guide the pull block 36.

[0027] In the embodiment, the surface of the resisting plate 37 is provided with an adjusting device 4, which comprises two through holes 44 arranged symmetrically on the surface of the resisting plate 37. The through holes 44 can cooperate with the resisting plate 37 to support the threaded rod 42.

[0028] Specifically, the surface of the two through holes 44 is insertedly connected with a threaded rod 42, and the surface of the threaded rod 42 is threadedly connected with a nut 43. The two nuts 43 are placed on the surface of the resisting plate 37.

[0029] In the embodiment, the threaded rod 42 can cooperate with the nut 43 to limit the threaded rod 42.

[0030] Specifically, one end of the two threaded rods 42 is fixedly connected with a stabilizing plate 41 placed on the surface of the workpiece 5. The stabilizing plate 41 can cooperate with the threaded rod 42 to support the stabilizing plate 41.

[0031] Specifically, the side of the resisting plate 37 close to the workpiece 5 is provided with a plurality of clamping grooves 45, and the resisting plate 37 is placed on the surface of the clamping grooves 45.

[0032] In the embodiment, the clamping grooves 45 can cooperate with the resisting plate 37 to support the stabilizing plate 41.

[0033] Working principle: by setting the limiting device 3, start the drive motor 38, drive motor 38 adjustment sliding disc 31, sliding disc 31 drive adjustment bar 32, adjustment bar 32 push support block 34, support block 34 push pull block 36, pull block 36 slide and drive the limiting block 35, guide groove 33 guide limiting block 35, the inner side of the workpiece 5 with the resistance plate 37, close the drive motor 38, by setting the limiting device 3, can effectively facilitate the workers to limit the different specifications of workpiece 5, avoid the workers in the processing of larger workpiece 5 appear inadaptation situation, and then improve the practicality of positioning fixture, at the same time is favorable for the worker to adjust the positioning fixture quickly, in addition, by setting the adjusting device 4, the worker will workpiece 5 placed on the base 1, when the inner side of the workpiece 5 with the resistance plate 37, will be placed on the card slot 45, the surface of the stable plate 41 threaded rod 42 inserted into the perforated hole 44, will be set on the threaded rod 42 and rotate nut 43, nut 43 and threaded rod 42 screw connection, by setting the adjusting device 4, can effectively facilitate the workers to limit the different thickness of workpiece 5, avoid the workpiece 5 in processing appear vibration situation, and then improve the practicality of positioning fixture.

Claims

1. A precision mechanical parts positioning fixture, comprising a base (1), a positioning rod (2), a workpiece (5), and a limiting device (3), characterized in that: The four positioning rods (2) are respectively installed at the four corners of the base (1). The workpiece (5) is placed on the surface of the base (1). The limiting device (3) is set on the surface of the base (1). The limiting device (3) includes a drive motor (38). The drive motor (38) is fixedly connected to the surface of the base (1). The drive end of the drive motor (38) is threadedly connected to a slide (31). A pull block (36) is placed on the surface of the base (1). A support block (34) is fixedly connected to one side of the pull block (36). An adjusting strip (32) is rotatably connected between the support block (34) and the slide (31). A stop plate (37) is fixedly connected to the surface of the pull block (36). The four stop plates (37) are inserted into the inner side of the workpiece (5).

2. The precision mechanical parts positioning fixture according to claim 1, characterized in that: The base (1) has four pairs of guide grooves (33) on its surface, and the four pairs of guide grooves (33) are arranged in a ring.

3. A precision mechanical parts positioning fixture according to claim 2, characterized in that: The surfaces of the four pull blocks (36) are fixedly connected to two limiting blocks (35), and the two limiting blocks (35) are slidably connected to the surface of the guide groove (33).

4. A precision mechanical parts positioning fixture according to claim 1, characterized in that: The surface of the backing plate (37) is provided with an adjustment device (4), the adjustment device (4) includes a perforation (44), two perforations (44) are opened on the surface of the backing plate (37), and the two perforations (44) are arranged symmetrically.

5. A precision mechanical parts positioning fixture according to claim 4, characterized in that: Threaded rods (42) are inserted and connected to the surfaces of the two perforations (44), and nuts (43) are threadedly connected to the surfaces of the threaded rods (42). The two nuts (43) are placed on the surface of the abutment plate (37).

6. A precision mechanical parts positioning fixture according to claim 5, characterized in that: One end of each of the two threaded rods (42) is fixedly connected to a stabilizing plate (41), which is placed on the surface of the workpiece (5).

7. A precision mechanical parts positioning fixture according to claim 6, characterized in that: The abutment (37) has multiple slots (45) on the side near the workpiece (5), and the abutment (37) is placed on the surface of the slots (45).

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