CN219053617U

CN219053617U - Stable milling fixing device

Info

Publication number: CN219053617U
Application number: CN202222857655.3U
Authority: CN
Inventors: 徐晓燕; 王永良
Original assignee: Suzhou Guanji Precision Machinery Co ltd
Current assignee: Suzhou Guanji Precision Machinery Co ltd
Priority date: 2022-10-30
Filing date: 2022-10-30
Publication date: 2023-05-23
Anticipated expiration: 2032-10-30

Abstract

The utility model discloses a stable milling fixing device which comprises a round base, a side support frame, an upper positioning fixing mechanism, a lower positioning fixing mechanism and a reinforcing support column, wherein the side support frame is vertically fixed on one side of the round base, the lower positioning fixing mechanism consists of a limiting block and a fixing device, two square grooves are respectively formed in two ends of the length direction of the limiting block, the fixing device consists of a square base, a fastening pin, a pressing block and a locking nut, the upper positioning fixing mechanism consists of the base, the positioning pin, the pressing block and the fastening bolt, the top of a shifting fork workpiece is positioned and clamped through the upper positioning fixing mechanism, two square grooves formed in the limiting block in the lower positioning fixing mechanism are used for limiting and positioning two feet at the bottom of the limiting block, the middle part of the shifting fork workpiece is fixed through the fixing device, the operation is simple, the three-point fixing and clamping is realized, the main clamping of the shifting fork workpiece is firmly stable, the shifting and the moving phenomenon cannot occur under the influence of cutting force, and the machining precision is ensured.

Description

Stable milling fixing device

Technical Field

The utility model relates to the technical field of machining, in particular to a stable milling fixing device.

Background

The device for holding the object to be processed in a correct position to receive the processing in the machine manufacturing process is called a jig. When a workpiece is machined on a machine tool, the workpiece must be positioned and clamped before machining in order to enable the surface of the workpiece to meet the technical requirements of the size, the geometric shape, the mutual position precision with other surfaces and the like specified by a drawing. The clamp is generally composed of a positioning element, a clamping device, a connecting element, a clamp base, etc.

Milling machine jigs are an important part of jigs, mainly used for machining planes, grooves, splines and various molding surfaces on parts, and are one of the most commonly used jigs. During milling, intermittent cutting is performed, the cutting force is large, and vibration is large, so that the clamping force requirement of the milling machine clamp is large, and the rigidity and strength requirements of the clamp are high. The existing shifting fork is universally used for positioning and clamping in the milling process, holes at the top of the shifting fork are inserted into positioning pins and then are fixedly clamped, two feet at the bottom are placed and positioned in a limiting mode, the workpiece is caused to swing and deviate due to the influence of cutting force in the milling process, and the machining precision is influenced.

It is therefore desirable to provide a stable milling fixture that solves the above mentioned problems.

Disclosure of Invention

The utility model aims to solve the technical problems that the existing shifting fork is universally used in the milling process, a hole at the top of the shifting fork is inserted into a positioning pin and then is fixedly clamped, two feet at the bottom are placed and positioned in a limiting mode, a workpiece is rocked and offset due to the influence of cutting force in the milling process, and the machining precision is influenced, and provides a stable milling fixing device for solving the technical problems.

In order to achieve the aim of the utility model, the utility model adopts the following technical scheme: the utility model provides a stable milling fixing device which characterized in that: including circle base, side support frame, go up location fixed establishment, lower location fixed establishment and reinforcing support column, side support frame vertical fixation is in one side of circle base, reinforcing support column has two both sides at the circle base respectively and with the laminating of side support frame and be located the bottom both sides of side support frame, go up location fixed establishment and set up in one side on the upper portion of side support frame, lower location fixed establishment sets up in the lower part of side support frame and with last location fixed establishment be located the different sides of side support frame, lower location fixed establishment comprises stopper and fixing device, the stopper is the bar stopper, stopper length direction's both ends respectively are equipped with a square groove, fixing device comprises square base, locking pin, compact heap and lock nut, the stopper is fixed on square base, go up location fixed establishment comprises base, locating pin, briquetting and holding bolt.

Further, the two ends of the square base are respectively provided with a bulge, the limiting block is fixed on the bulge far away from the upper positioning and fixing mechanism, and the other bulge is used for supporting a workpiece.

Further, the locking pin is arranged in the middle of the square base, the upper portion of the locking pin is of a threaded structure, the compression block and the lock nut are arranged on the upper portion of the locking pin, and the compression block is located below the lock nut.

Further, the locating pin sets up in the centre of base, the locating pin lower part is smooth circular shaft structure, the top of locating pin is the internal thread structure, briquetting movable assembly is in the upper portion of locating pin, fastening bolt spiral equipment is in the internal thread structure in locating pin upper portion.

Further, rubber pads are arranged at the bottoms of the pressing blocks and the compacting blocks.

Further, a rubber pad is arranged in the square groove.

Compared with the prior art, the utility model has the advantages that: the top of shifting fork work piece is fixed a position and tightly pressed from both sides through last location fixed establishment, carries out spacing location to the bottom both feet of stopper through two square grooves that set up on the stopper in the lower location fixed establishment, carries out the fixed of shifting fork work piece middle part through fixing device, easy operation, and three-point location fixed clamp, shifting fork work piece main dress clamp is reliable stable, can not appear the phenomenon that the skew removed under the influence of cutting force.

Drawings

FIG. 1 is a perspective view of a stable milling fixture of the present utility model;

FIG. 2 is a left side view of a stable milling fixture of the present utility model;

FIG. 3 is a rear view of a stabilizing milling fixture of the present utility model;

FIG. 4 is a front view of a stabilizing milling fixture of the present utility model;

FIG. 5 is a perspective view of a structure of a stable milling fixture of the present utility model incorporating a shifting fork workpiece;

in the figure: 1, a round base; 2. a side support; 3. an upper positioning and fixing mechanism; 4. a lower positioning and fixing mechanism; 5. reinforcing the support column; 401. a limiting block; 402. a fixing device; 4011. a square groove; 4021. a square base; 4022. a tightening pin; 4023. a compaction block; 4024. a lock nut; 301. a base; 302. a positioning pin; 303. briquetting; 304. and (5) fastening the bolts.

Detailed Description

In view of the defects in the prior art, the technical scheme of the utility model is provided through long-term research and a large number of practices. The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

FIG. 1 is a perspective view of a stable milling fixture of the present utility model; FIG. 2 is a left side view of a stable milling fixture of the present utility model; FIG. 3 is a rear view of a stabilizing milling fixture of the present utility model; FIG. 4 is a front view of a stabilizing milling fixture of the present utility model; FIG. 5 is a perspective view of a structure of a stable milling fixture of the present utility model incorporating a shifting fork workpiece; as shown in fig. 1 to 5, the embodiment of the utility model provides a stable milling fixing device: including circle base 1, side support frame 2, go up location fixed establishment 3, lower location fixed establishment 4 and strengthen support column 5, side support frame 2 vertical fixation is in one side of circle base 1, strengthen support column 5 have two fix respectively in the both sides of circle base 1 and with the laminating of side support frame 2 and be located the bottom both sides of side support frame 2, go up location fixed establishment 3 and set up in one side of the upper portion of side support frame 2, lower location fixed establishment 4 sets up in the lower part of side support frame 2 and with the different sides that are located side support frame 2 of last location fixed establishment 3, lower location fixed establishment 4 comprises stopper 401 and fixing device 402, stopper 401 is the bar stopper, stopper 401 length direction's both ends respectively are equipped with square groove 4011, fixing device 402 comprises square base 4021, locking pin 4022, compression block 4023 and lock nut 4, the stopper 401 is fixed on square base 1, go up location fixed establishment 3 comprises base 301, locating pin 302, briquetting 303 and fixing bolt 304, set up location fixed establishment 3 and down and fix the middle part and fix work piece, can guarantee that the work piece moves stable precision is fixed in the middle part and the work piece is fixed in the course of working.

Preferably, protrusions are respectively arranged at two ends of the square base 4021, the limiting block 401 is fixed on the protrusion far away from the upper positioning and fixing mechanism, and the other protrusion is used for supporting a workpiece, so that the workpiece is placed stably.

Preferably, the tightening pin 4022 is disposed in the middle of the square base 4021, the upper portion of the tightening pin 4022 is in a threaded structure, the pressing block 4023 and the locking nut 4024 are disposed on the upper portion of the tightening pin 4022, the pressing block 4023 is located below the locking nut 4024, the positioning pin 302 is disposed in the middle of the base 301, the lower portion of the positioning pin 302 is in a smooth circular shaft structure, the top of the positioning pin 302 is in an internal threaded structure, the pressing block 303 is movably assembled on the upper portion of the positioning pin 302, the tightening bolt 304 is spirally assembled in the internal threaded structure on the upper portion of the positioning pin 302, in the actual operation process, a top through hole of a workpiece is inserted on the positioning pin 302, two ends of the bottom of the workpiece are respectively opened in the square groove 4011, the pressing block 303 is moved to the upper portion of the workpiece and is attached to the workpiece, the fixing bolt 304 is screwed in the internal threaded structure on the top of the positioning pin 302, the pressing block 4023 is moved to the upper portion of the workpiece and is attached to the workpiece, and the locking nut 4024 is attached to the workpiece, and the fixing and clamping of the top of the workpiece is completed.

Preferably, rubber pads are arranged at the bottoms of the pressing block 303 and the pressing block 4023, rubber pads are arranged in the square groove 4011, and are used for protecting the workpiece when the workpiece is clamped, so that damage to the appearance of the workpiece is avoided, and the appearance qualification rate of the workpiece is improved.

It should be understood that the foregoing embodiments are merely illustrative of the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the present utility model and to implement the same, without limiting the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims

1. The utility model provides a stable milling fixing device which characterized in that: including circle base, side support frame, go up location fixed establishment, lower location fixed establishment and reinforcing support column, side support frame vertical fixation is in one side of circle base, reinforcing support column has two both sides at the circle base respectively and with the laminating of side support frame and be located the bottom both sides of side support frame, go up location fixed establishment and set up in one side on the upper portion of side support frame, lower location fixed establishment sets up in the lower part of side support frame and with last location fixed establishment be located the different sides of side support frame, lower location fixed establishment comprises stopper and fixing device, the stopper is the bar stopper, stopper length direction's both ends respectively are equipped with a square groove, fixing device comprises square base, locking pin, compact heap and lock nut, the stopper is fixed on square base, go up location fixed establishment comprises base, locating pin, briquetting and holding bolt.

2. A stable milling fixture as claimed in claim 1, wherein: the square base is characterized in that protrusions are respectively arranged at two ends of the square base, the limiting block is fixed on the protrusions far away from the upper positioning and fixing mechanism, and the other protrusions are used for supporting workpieces.

3. A stable milling fixture as claimed in claim 1, wherein: the locking pin is arranged in the middle of the square base, the upper portion of the locking pin is of a threaded structure, the compression block and the lock nut are arranged on the upper portion of the locking pin, and the compression block is located below the lock nut.

4. A stable milling fixture as claimed in claim 1, wherein: the locating pin sets up in the centre of base, locating pin lower part is smooth circular shaft structure, the top of locating pin is the internal thread structure, briquetting movable assembly is in the upper portion of locating pin, fastening bolt spiral equipment is in the internal thread structure in locating pin upper portion.

5. A stable milling fixture as claimed in claim 1, wherein: the bottom of briquetting and compact heap is equipped with the rubber pad.

6. A stable milling fixture as claimed in claim 1, wherein: and a rubber pad is arranged in the square groove.