CN221755360U - A CNC machining fixture - Google Patents

Abstract

The utility model relates to the technical field of processing fixtures, and discloses a CNC processing fixture which effectively solves the problem that the workpiece is difficult to clamp on two sides due to the fact that only one pressing piece is arranged at the existing installation station, and comprises an installation plate, wherein a clamping assembly is arranged on the installation plate and comprises clamping grooves symmetrically arranged on the installation plate, a middle sliding groove is arranged at the top end of the installation plate and is positioned between the two clamping grooves, sliding blocks are symmetrically arranged in the middle sliding groove, the two sliding blocks are mutually close by putting two workpieces to be processed into the clamping grooves and starting the motor, so that the two hard clamping plates in the two clamping grooves are driven to mutually close, the workpieces are clamped, and the working efficiency is improved.

Description

A CNC machining fixture

Technical Field

The utility model belongs to the technical field of processing fixtures, in particular to a CNC processing fixture.

Background Art

According to the patent document with the authorization announcement number of "CN210938207U" and the invention name of "A CNC machining fixture", the specification states: the workpiece to be processed is placed in the mounting hole of the mounting station, and then the pressing plate is pressed on the workpiece by tightening the locking piece, so that the workpiece is fixed in the mounting hole. The clamping is simple, and multiple workpieces can be clamped at the same time for processing, which improves work efficiency. The support seat is set to a cylindrical shape, and the support seat is installed on the machine tool. The rotating shaft on the support seat can be connected to the driving device on the CNC machine tool to drive the support seat to flip, thereby driving the workpiece on the mounting plate to flip, and processing different directions of the workpiece; but there are still the following defects:

Since only one pressing sheet is provided at the installation station, it is not easy to clamp the workpiece on both sides, resulting in a poor clamping effect.

Utility Model Content

In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a CNC machining fixture, which effectively solves the problem that the current installation station is only equipped with one pressing piece, which makes it difficult to clamp the workpiece on both sides.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC machining fixture, comprising a mounting plate, on which a clamping assembly is mounted;

The clamping assembly comprises clamping grooves symmetrically arranged on the mounting plate, a middle sliding groove is arranged on the top of the mounting plate, and the middle sliding groove is located between the two clamping grooves.

Preferably, a slider is symmetrically installed inside the middle slide groove, the slider is slidably connected to the middle slide groove, the end of the middle slide groove is rotatably connected to a screw rod, one end of the screw rod is fixedly connected to the output shaft of the motor, and the motor is fixedly installed on the mounting plate.

Preferably, the screw rod is threadably connected to the two sliders, and the thread grooves formed on the two sliders are formed in opposite directions.

Preferably, a push rod is installed at the top of the slider, a connecting plate is installed at the top of the push rod, a suspension rod is symmetrically installed at the bottom of the connecting plate, a hard clamp is installed at the bottom of the suspension rod, and the hard clamp is located inside the clamping groove.

Preferably, elastic splints are symmetrically installed on both sides of the hard splint, one side of the elastic splint is fixedly connected to the hard splint, and the other side of the elastic splint is suspended, and rubber columns are equidistantly installed on the elastic splint, and the rubber columns are located on the side of the clamping groove where the two elastic splints are close to each other, and the material of the rubber columns is rubber.

Preferably, a magnetic sheet is installed on the side of the elastic splint away from the rubber column, and an electric telescopic rod box is provided on the side of the elastic splint away from the rubber column. The electric telescopic rod box is fixedly installed on the clamping groove, and a telescopic rod is installed on the electric telescopic rod box. The telescopic rod is arranged toward the inside of the clamping groove, and a magnetic block is installed at one end of the telescopic rod, and the magnetism of the magnetic block is opposite to that of the magnetic sheet.

Preferably, support seats are symmetrically mounted on both sides of the mounting plate, and rotating shafts are mounted on the sides of the two support seats that are away from each other.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model places two workpieces to be processed into the clamping groove, turns on the motor, and makes the two slide blocks approach each other, thereby driving the two hard clamping plates in the two clamping grooves to approach each other to clamp the workpieces, thereby being able to clamp the two workpieces at the same time, thereby improving work efficiency;

This new type of device clamps both sides of the workpiece by setting two hard clamping plates in the clamping groove to improve the clamping stability. At the same time, after clamping, the electric telescopic rod box is opened to extend the telescopic rod outward, pushing the elastic clamping plate to bend toward the workpiece, covering the workpiece, and further improving the clamping stability.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

In the attached picture:

FIG1 is a schematic diagram of the structure of the CNC machining fixture of the utility model;

Figure 2 is a schematic diagram of the structure of the clamping assembly of the utility model;

FIG3 is a schematic diagram of the structure of the elastic splint of the utility model;

Figure 4 is a schematic diagram of the structure of the electric telescopic rod box of the utility model;

In the figure: 1. mounting plate; 2. support seat; 3. rotating shaft; 4. clamping assembly; 401. clamping groove; 402. middle slide groove; 403. screw; 404. motor; 405. slider; 406. push rod; 407. connecting plate; 408. suspension rod; 409. hard splint; 410. elastic splint; 411. rubber column; 412. magnetic sheet; 413. electric telescopic rod box; 414. telescopic rod; 415. magnetic block.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

Embodiment 1, as shown in FIGS. 1 to 4 , the utility model comprises a mounting plate 1 , on which a clamping assembly 4 is mounted;

The clamping assembly 4 includes a clamping groove 401 symmetrically opened on the mounting plate 1, a middle slide groove 402 is opened at the top of the mounting plate 1, the middle slide groove 402 is located between the two clamping grooves 401, a slider 405 is symmetrically installed inside the middle slide groove 402, the slider 405 is slidably connected to the middle slide groove 402, and the end of the middle slide groove 402 is rotatably connected to a screw rod 403, one end of the screw rod 403 is fixedly connected to the output shaft of the motor 404, the motor 404 is fixedly installed on the mounting plate 1, the screw rod 403 is threadedly connected to the two sliders 405, the thread grooves opened on the two sliders 405 are opened in opposite directions, and the sliders A push rod 406 is installed at the top of 405, a connecting plate 407 is installed at the top of the push rod 406, a suspension rod 408 is symmetrically installed at the bottom of the connecting plate 407, a hard clamping plate 409 is installed at the bottom of the suspension rod 408, and the hard clamping plate 409 is located inside the clamping groove 401. Two workpieces to be processed are placed in the clamping groove 401, and the motor 404 is turned on to make the two sliders 405 approach each other, thereby driving the two hard clamping plates 409 in the two clamping grooves 401 to approach each other to clamp the workpieces, so that the two workpieces can be clamped at the same time, which improves work efficiency. The two sides of the hard clamping plate 409 are symmetrical An elastic splint 410 is installed, one side of the elastic splint 410 is fixedly connected to the hard splint 409, and the other side of the elastic splint 410 is suspended. Rubber columns 411 are equidistantly installed on the elastic splint 410. The rubber columns 411 are located on the side of the clamping groove 401 where the two elastic splints 410 are close to each other. The material of the rubber columns 411 is rubber. A magnetic sheet 412 is installed on the side of the elastic splint 410 away from the rubber columns 411. An electric telescopic rod box 413 is provided on the side of the elastic splint 410 away from the rubber columns 411. The electric telescopic rod box 413 is fixedly installed on the clamping groove 401. There is a telescopic rod 414, which is arranged toward the inside of the clamping groove 401. Two hard clamps 409 are arranged in the clamping groove 401 to clamp the two sides of the workpiece to improve the clamping stability. At the same time, after clamping, the electric telescopic rod box 413 is opened to make the telescopic rod 414 extend outward, pushing the elastic clamp 410 to bend toward the workpiece, covering the workpiece, and further improving the clamping stability. A magnetic block 415 is installed at one end of the telescopic rod 414, and the magnetism of the magnetic block 415 is opposite to that of the magnetic sheet 412. Support seats 2 are symmetrically installed on both sides of the mounting plate 1, and a rotating shaft 3 is installed on the side of the two support seats 2 away from each other.

Working principle: When in use, first put two workpieces to be processed into the clamping groove 401, then turn on the motor 404 to rotate the screw 403. Since the screw 403 is threadedly connected to the two sliders 405, and the thread directions of the thread grooves on the two sliders 405 are opposite, the screw 403 rotates, driving the two sliders 405 to approach each other, thereby driving the two hard clamping plates 409 in the clamping groove 401 to approach each other and then clamp the workpiece in the clamping groove 401. The workpiece in the holding groove 401 is clamped at the same time to improve the processing efficiency. After clamping, the electric telescopic rod box 413 is opened to make the telescopic rod 414 extend outward, thereby pushing the elastic clamping plate 410 to bend toward the workpiece, thereby covering the workpiece, thereby improving the clamping effect. Since a magnetic block 415 is provided on the telescopic rod 414 and a rubber column 411 is provided on the elastic clamping plate 410, the magnetic block 415 has an attractive force on the rubber column 411, thereby improving the rotation effect of the elastic clamping plate 410 after the telescopic rod 414 moves back.

Claims (1)

1. A CNC machining fixture, comprising a mounting plate (1), characterized in that: a clamping assembly (4) is mounted on the mounting plate (1); The clamping assembly (4) comprises clamping grooves (401) symmetrically arranged on the mounting plate (1), a middle slide groove (402) is arranged at the top end of the mounting plate (1), and the middle slide groove (402) is located between the two clamping grooves (401); A slider (405) is symmetrically installed inside the middle slide groove (402), the slider (405) is slidably connected to the middle slide groove (402), the end of the middle slide groove (402) is rotatably connected to a screw rod (403), one end of the screw rod (403) is fixedly connected to the output shaft of the motor (404), and the motor (404) is fixedly installed on the mounting plate (1); The screw rod (403) is threadedly connected to the two sliders (405), and the thread grooves on the two sliders (405) are provided in opposite directions; A top rod (406) is installed at the top of the slider (405), a connecting plate (407) is installed at the top of the top rod (406), a suspension rod (408) is symmetrically installed at the bottom of the connecting plate (407), a hard clamping plate (409) is installed at the bottom of the suspension rod (408), and the hard clamping plate (409) is located inside the clamping groove (401); Elastic clamps (410) are symmetrically mounted on both sides of the rigid clamp (409), one side of the elastic clamp (410) is fixedly connected to the rigid clamp (409), and the other side of the elastic clamp (410) is suspended, and rubber columns (411) are equidistantly mounted on the elastic clamp (410), and the rubber columns (411) are located on the side of the clamping groove (401) where the two elastic clamps (410) are close to each other, and the material of the rubber columns (411) is rubber; A magnetic sheet (412) is installed on the side of the elastic clamp (410) away from the rubber column (411); an electric telescopic rod box (413) is provided on the side of the elastic clamp (410) away from the rubber column (411); the electric telescopic rod box (413) is fixedly installed on the clamping groove (401); a telescopic rod (414) is installed on the electric telescopic rod box (413); the telescopic rod (414) is arranged toward the inside of the clamping groove (401); a magnetic block (415) is installed on one end of the telescopic rod (414); the magnetism of the magnetic block (415) is opposite to that of the magnetic sheet (412); Support seats (2) are symmetrically mounted on both sides of the mounting plate (1), and rotating shafts (3) are mounted on the sides of the two support seats (2) that are away from each other.