CN220680513U - Precision positioning fixture for precision part machining - Google Patents

Abstract

The utility model discloses a precise positioning fixture for processing precise parts, which comprises a base, wherein a positioning structure is arranged at the top of the base, and comprises: the utility model relates to the technical field of precision part machining, in particular to a novel high-precision part machining device, which comprises a first driving piece, a bidirectional threaded rod, two positioning blocks, two second driving pieces, two first bevel gears, two second bevel gears, two rotating shafts, four limiting assemblies and two auxiliary positioning assemblies, and has the beneficial effects that: through first driving piece and two-way threaded rod cooperation, can make two locating pieces be close to each other to carry out location clamping operation to the horizontal direction of precision parts, simultaneously, four spacing subassembly positions are adjustable, thereby can be to the precision parts adaptation of different model sizes, and the locating piece top is provided with auxiliary positioning subassembly, can be after horizontal location is ended, to the vertical operation of fixing a position of part, has simple structure and location characteristics such as effectual.

Description

A precision positioning fixture for precision parts processing

Technical Field

The utility model relates to the technical field of precision parts processing, specifically a precision positioning fixture for precision parts processing.

Background technique

Parts processing refers to the process of changing the external dimensions or performance of the workpiece through a part equipment. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. The parts processing process is formulated. When processing precision parts, Parts need to be positioned and clamped, but the patent number is CN210938202U, a positioning fixture for precision parts processing, including a fixed block, a mounting plate, a collection trough, an adjustment device and a waste collection device. The top of the fixed block is fixed A mounting plate is installed, a collection groove is provided inside the mounting plate, an adjustment device is provided on the top of the mounting plate, and a waste collection device is fixedly installed on the opposite side of the fixed block;

When this technical solution is running, through the liftable movable splint and the top fixed frame splint, precision clamping operations can be performed in the vertical direction. However, during the processing process, the parts may be subject to horizontal processing forces, which in turn may cause the parts to In the event of horizontal displacement, the overall positioning and clamping effect is poor.

Utility Model Content

In order to achieve the above objectives, the present utility model is realized through the following technical solutions: a precision positioning fixture for precision parts processing, including a base, and a positioning structure is installed on the top of the base, and the positioning structure includes:

A first driving part, a bidirectional threaded rod, two positioning blocks, two second driving parts, two first bevel gears, two second bevel gears, two rotating shafts, four limiting assemblies and two Auxiliary positioning components;

The first driving member is installed on one side of the base, the two-way threaded rod is arranged inside the base, and one end of the two-way threaded rod is connected to the driving end of the first driving member, the bottom of the two positioning blocks are threadedly connected to the two-way threaded rod, the two second driving members are respectively installed on one side of the two positioning blocks, and the interior of the two positioning blocks is set to be hollow, the two first bevel gears are respectively connected to the driving ends of the two second driving members, the two rotating shafts are arranged inside the two positioning blocks, the two second bevel gears are respectively arranged in the middle parts of the two rotating shafts, and the two first bevel gears are respectively meshed with the two second bevel gears, the four limiting assemblies are respectively connected to the two ends of the two rotating shafts, and the two auxiliary positioning assemblies are respectively installed on the top of the two positioning blocks.

Preferably, one of the four limiting assemblies includes: a moving rod, a transmission block and a replaceable limiting block;

The moving rod is plugged into one end of the rotation shaft, the transmission block is installed at one end of the moving rod, and the replaceable limiting block is plugged into one side of the transmission block.

Preferably, one of the two auxiliary positioning assemblies includes: a support base, two electric push rods and a lifting plate;

The support base is installed on the top of the transmission block through bolts, the two electric push rods are installed on the top of the support base, and the output ends of the two electric push rods penetrate the support base and the top of the lifting plate. connect.

Preferably, the top of the base is provided with two auxiliary slideways, and the bottom of the transmission block is connected to the two auxiliary slideways respectively.

Preferably, a telescopic rod is provided at the rear side of the transmission block, and a telescopic end of the telescopic rod is connected to one side of the transmission block.

Preferably, threads in opposite directions are provided on both sides of the rotating shaft, and the inner wall of the moving rod is threadedly connected to the rotating shaft.

beneficial effects

The utility model provides a precision positioning fixture for precision parts processing, which has the following beneficial effects: the technical solution adopts a positioning structure, and during operation, through the cooperation of a first driving member and a bidirectional threaded rod, the two positioning blocks can be brought close to each other, thereby performing a positioning and clamping operation on the horizontal direction of the precision parts, and at the same time, the positions of the four limit assemblies are adjustable, so that precision parts of different models and sizes can be adapted, and an auxiliary positioning assembly is arranged on the top of the positioning block, which can perform a vertical positioning operation on the parts after the horizontal positioning is completed, and has the characteristics of simple structure and good positioning effect.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic top structural view of a precision positioning fixture for precision parts processing according to the present invention.

FIG. 2 is a schematic diagram of the front view of a precision positioning fixture for precision parts processing according to the present invention.

Figure 3 is a schematic three-dimensional structural diagram of a precision positioning fixture for precision parts processing according to the present invention.

In the picture: 1. Base, 2. First driving part, 3. Bidirectional threaded rod, 4. Positioning block, 5. Second driving part, 6. First bevel gear, 7. Second bevel gear, 8 , Rotating shaft, 9. Moving rod, 10. Transmission block, 11. Replaceable limit block, 12. Support seat, 13. Electric push rod, 14. Lifting plate, 15. Auxiliary slide, 16. Telescopic rod.

Detailed ways

Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Example

Please refer to Figure 1-3. It should be noted that during use, first place the precision parts on the top of the base 1, and then control the operation of the first driving part 2. The two positioning blocks 4 can be driven close to each other through the bidirectional threaded rod 3. , so that the precision parts can be fixed in the horizontal direction, and during the fixing process, the second driving part 5 operates and drives the rotating shaft 8 to rotate through the cooperation of the first bevel gear 6 and the second bevel gear 7, so that the The limit component extends from the inside of the positioning block 4. The four limit components cooperate to perform limit positioning operations on the front and rear directions of the part. After the horizontal positioning is completed, the auxiliary positioning component can be controlled to run, and the parts can be positioned after the horizontal positioning. Precision parts are positioned in the vertical direction, and have the characteristics of simple structure and good positioning effect; the second driving part 5 operates and can drive the rotating shaft 8 to rotate through the cooperation of the first bevel gear 6 and the second bevel gear 7 , since there are threads in opposite directions on both sides of the rotating shaft 8, and the inner wall of the moving rod 9 is threadedly connected to the rotating shaft 8, when the rotating shaft 8 rotates, the moving rod 9 can be moved, thereby driving the transmission block 10 and the replaceable The limit block 11 performs positioning and clamping operations on the precision parts in the front and rear directions, and the replaceable limit block 11 can be replaced according to the actual situation, thereby increasing the positioning effect; after the horizontal positioning and clamping of the precision parts is completed, it is located on the support base The two second electric push rods 13 on the top of 12 operate and can cooperate with the lifting plate 14 to position and clamp the parts in the vertical direction.

Two auxiliary slideways 15 are provided on the top of the base 1. The bottom of the transmission block is connected to the two auxiliary slideways 15 respectively to increase the stability of the positioning block 4 during movement. A telescopic rod 16 is provided on the rear side of the transmission block. The telescopic end of the rod 16 is connected to one side of the transmission block 10 to increase the stability of the transmission block 10 and the moving rod 9 during movement. Threads in opposite directions are provided on both sides of the rotating shaft 8, and the inner wall of the moving rod 9 is in contact with the rotating shaft 8 Threaded connection.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a precision positioning anchor clamps that precision parts processing was used, includes the base, location structure is installed at the base top, its characterized in that, location structure contains:

the device comprises a first driving piece, a bidirectional threaded rod, two positioning blocks, two second driving pieces, two first bevel gears, two second bevel gears, two rotating shafts, four limiting assemblies and two auxiliary positioning assemblies;

the first driving piece is installed in base one side, the two-way threaded rod set up in inside the base, just two one end of the two-way threaded rod with first driving piece drive end is connected, two the locating piece bottom with two-way threaded rod threaded connection, two the second driving piece is installed respectively in two locating piece one side, and two the locating piece is inside to be established to be hollow, two first conical gear respectively with two the second driving piece drive end is connected, two the axis of rotation sets up in two inside the locating piece, two the second conical gear set up respectively in two axis of rotation mid portion, and two first conical gear respectively with two second conical gear engagement, four spacing subassembly respectively with two axis of rotation both ends are connected, two the auxiliary positioning subassembly is installed respectively in two the locating piece top.

2. The precision positioning fixture for precision parts machining according to claim 1, wherein one of the four limiting assemblies comprises: the movable rod, the transmission block and the replaceable limiting block;

the movable rod is inserted into one end of the rotating shaft, the transmission block is arranged at one end of the movable rod, and the replaceable limiting block is inserted into one side of the transmission block.

3. The precision positioning fixture for precision parts machining according to claim 2, wherein two of said auxiliary positioning assemblies, one of which comprises: the device comprises a supporting seat, two electric push rods and a lifting plate;

the supporting seat is mounted at the top of the transmission block through bolts, two electric push rods are mounted at the top of the supporting seat, and the output ends of the two electric push rods penetrate through the supporting seat and are connected with the top of the lifting plate.

4. A precision positioning fixture for precision parts machining according to claim 3, wherein two auxiliary slide ways are provided on the top of the base, and the bottom of the transmission block is connected with the two auxiliary slide ways, respectively.

5. The precision positioning fixture for precision part machining according to claim 2, wherein a telescopic rod is arranged at the rear side of the transmission block, and a telescopic end of the telescopic rod is connected with one side of the transmission block.

6. The precision positioning fixture for precision parts machining according to claim 2, wherein the two sides of the rotating shaft are provided with threads in opposite directions, and the inner wall of the moving rod is in threaded connection with the rotating shaft.