CN213033933U

CN213033933U - Lathe fixture with high centering precision

Info

Publication number: CN213033933U
Application number: CN202021713086.XU
Authority: CN
Inventors: 崔甲君; 张明远
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-23
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a turning attachment that centering precision is high, adjustment mechanism includes dwang, fixed column and backup pad, the one end fixedly connected with horizontal pole of dwang, the surface sliding connection of fixed column has splint, the front of splint runs through the logical groove of seting up the surface looks adaptation with the fixed column, splint are close to one side of dwang and have seted up the bayonet socket, the utility model relates to a turning attachment technical field. This turning attachment that centering precision is high uses through the cooperation of dwang, fixed column, backup pad, horizontal pole, splint, logical groove and bayonet socket, through rotating the horizontal pole, utilizes the rotation pole to promote splint, and splint and anomalous work piece are effectively laminated, prevent that the work piece from producing the skew man-hour, and centering precision is high, and it is not convenient enough when having solved current turning attachment and carrying out the centre gripping to some anomalous work pieces, leads to turning attachment to use the problem that has the limitation.

Description

Lathe fixture with high centering precision

Technical Field

The utility model relates to a turning attachment technical field specifically is a turning attachment that centering precision is high.

Background

The lathe fixture is used for processing the inner and outer rotary surfaces and the end surface of a workpiece on a lathe. Most lathe fixtures are arranged on the main shaft; a few are mounted on saddles or bedbeds. The lathe fixture is divided into a centering type (mandrel type), a chuck type, an angle iron type, a chuck type and the like according to different workpiece positioning modes. 1. The centering type lathe fixture is characterized in that a workpiece is usually positioned by a hole or an excircle on the centering type lathe fixture, and the fixture adopts a centering clamping mechanism. 2. The angle iron type lathe fixture is characterized in that when the rotary end faces of parts such as a shell, a support, a lever, a joint and the like are machined on a lathe, a special fixture needs to be designed because the parts are complex in shape and difficult to clamp on a universal chuck. The clamp body of the clamp is in an angle iron shape, so the clamp is called as an angle iron type lathe clamp. 3. A chuck body of the chuck is called a chuck, a plurality of T-shaped grooves are arranged on the chuck body, auxiliary elements such as a positioning element, a clamping element and an indexing element are installed, and the outer circle and the inner hole of a workpiece with a complex shape can be machined. This type of clamp is asymmetric and balancing is noted.

The anchor clamps that current lathe adopted are three-jaw or four-jaw chuck usually, and it is more convenient to carry out the centre gripping to cylindrical work piece, and it is not convenient enough when carrying out the centre gripping to some anomalous work pieces, lead to the turning attachment to use and have the limitation, consequently, the utility model provides a turning attachment that centering accuracy is high to solve the above-mentioned problem of mentioning.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a lathe fixture that centering precision is high has solved current lathe fixture and has carried out the centre gripping to some anomalous work pieces when convenient inadequately, leads to lathe fixture to use the problem that has the limitation.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the lathe fixture with high centering precision comprises a chuck, wherein a through hole is formed in the front face of the chuck in a penetrating mode, and an adjusting mechanism is arranged on the front face of the chuck.

Adjustment mechanism includes dwang, fixed column and backup pad, the one end fixedly connected with horizontal pole of dwang, the surface sliding connection of fixed column has splint, the front of splint run through set up with the logical groove of the surface looks adaptation of fixed column, splint are close to one side of dwang and have been seted up the bayonet socket.

Preferably, the surface of dwang is seted up threadedly, the dwang is the arc near the one end of splint, the surface of dwang and the inside looks adaptation of bayonet socket.

Preferably, one end of the fixing column is fixedly connected with the front face of the chuck, a moving groove is formed in the top of the chuck in a penetrating mode, and a threaded rod is fixedly connected to the back face of the supporting plate.

Preferably, the outer surface of the threaded rod is matched with the inside of the moving groove, and the outer surface of the threaded rod is in threaded connection with the first rotating block and the second rotating block.

Preferably, the back surface of the first rotating block is in contact with the front surface of the chuck, the front surface of the second rotating block is in contact with the back surface of the chuck, and the diameters of the outer surfaces of the first rotating block and the second rotating block are larger than the inner diameter of the moving groove.

Preferably, the outer surface of the rotating rod is in threaded connection with the inside of the supporting plate, the adjusting mechanisms are symmetrically arranged in three numbers, the limiting plates are fixedly connected to the front surfaces of the fixing columns, and the supporting plate and the bayonets are located on the same horizontal line.

Advantageous effects

The utility model provides a turning attachment that centering precision is high. Compared with the prior art, the method has the following beneficial effects:

(1) this turning attachment that centering precision is high, through including the dwang at adjustment mechanism, fixed column and backup pad, the one end fixedly connected with horizontal pole of dwang, the surface sliding connection of fixed column has splint, the front of splint runs through the logical groove of the surface looks adaptation of seting up with the fixed column, splint are close to one side of dwang and have been seted up the bayonet socket, through the dwang, the fixed column, the backup pad, the horizontal pole, splint, the cooperation of logical groove and bayonet socket is used, through rotating the horizontal pole, utilize the dwang to promote splint, splint and anomalous work piece effectively laminate, prevent that the work piece from producing the skew man-hour, centering precision is high, it is not convenient enough when having solved current turning attachment and carrying out the centre gripping to some anomalous work pieces, lead.

(2) This turning attachment that centering precision is high, through the positive fixed connection at the one end of fixed column and chuck, the shifting chute has been seted up in the top of chuck through running through, the back fixedly connected with threaded rod of backup pad, the surface of threaded rod and the inside looks adaptation of shifting chute, the surface threaded connection of threaded rod has first turning block and second turning block, through the threaded rod, the cooperation of first turning block and second turning block is used, come the height of adjusting threaded rod through rotating first turning block and second turning block, can carry out the centre gripping to the position that the work piece is different, and the use efficiency is improved.

Drawings

Fig. 1 is a front view of the external structure of the present invention;

FIG. 2 is a partial sectional view of the present invention;

fig. 3 is a rear view of the external structure of the present invention.

In the figure: 1-chuck, 2-through hole, 3-adjusting mechanism, 31-rotating rod, 32-fixed column, 33-supporting plate, 34-cross rod, 35-clamping plate, 36-through groove, 37-bayonet, 4-moving groove, 5-threaded rod, 6-first rotating block, 7-second rotating block and 8-limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a lathe fixture with high centering precision comprises a chuck 1, wherein a through hole 2 penetrates through the front surface of the chuck 1, and an adjusting mechanism 3 is arranged on the front surface of the chuck 1; the adjusting mechanism 3 comprises a rotating rod 31, a fixed column 32 and a supporting plate 33, the outer surface of the rotating rod 31 is in threaded connection with the inside of the supporting plate 33, the adjusting mechanism 3 is symmetrically provided with three parts, the front surface of the fixed column 32 is fixedly connected with a limiting plate 8, the supporting plate 33 and a bayonet 37 are positioned on the same horizontal line, one end of the fixed column 32 is fixedly connected with the front surface of the chuck 1, the top of the chuck 1 is provided with a moving groove 4 in a penetrating way, the back surface of the supporting plate 33 is fixedly connected with a threaded rod 5, the outer surface of the threaded rod 5 is matched with the inside of the moving groove 4, the outer surface of the threaded rod 5 is in threaded connection with a first rotating block 6 and a second rotating block 7, the threaded rod 5 is matched with the first rotating block 6 and the second rotating block 7, the height of the threaded rod 5 is adjusted by rotating, the use efficiency is improved, the back of the first rotating block 6 contacts with the front of the chuck 1, the front of the second rotating block 7 contacts with the back of the chuck 1, the diameter of the outer surfaces of the first rotating block 6 and the second rotating block 7 is larger than the inner diameter of the moving groove 4, the outer surface of the rotating rod 31 is provided with threads, one end of the rotating rod 31, which is close to the clamping plate 35, is arc-shaped, the outer surface of the rotating rod 31 is matched with the inner part of the bayonet 37, one end of the rotating rod 31 is fixedly connected with the cross rod 34, the outer surface of the fixed column 32 is slidably connected with the clamping plate 35, the front of the clamping plate 35 penetrates through the through groove 36 matched with the outer surface of the fixed column 32, one side of the clamping plate 35, which is close to the rotating rod 31, is provided with the bayonet 37, the rotating rod 31, the fixed column 32, the supporting plate 33, the, the clamping plate 35 is effectively attached to the irregular workpiece, the workpiece is prevented from deviating during machining, centering precision is high, and the problem that the existing lathe fixture is inconvenient to clamp the irregular workpiece and limited in use is solved.

And those not described in detail in this specification are well within the skill of those in the art.

When the lathe clamp works, a workpiece is placed in the through hole 2, at the moment, the threaded rod 5 can move in the moving groove 4 by rotating the first rotating block 6 and the second rotating block 7, different parts of the workpiece can be clamped, the use efficiency is improved, after the length of the threaded rod 5 is adjusted, the threaded rod 5 is fixed by rotating the first rotating block 6 and the second rotating block 7, the rotating rod 31 is driven to rotate by rotating the cross rod 34, the end part of the rotating rod 31 pushes the bayonet 37 part of the clamping plate 35, the clamping plate 35 rotates around the fixed column 32 under the action of the through groove 36, the surface of the clamping plate 35 is driven to be abutted and attached to the surface of the workpiece, the workpiece is prevented from deviating during processing, the centering precision is high, and the problem that the existing lathe clamp is inconvenient for clamping some irregular workpieces is solved, causing a problem in that the use of the lathe jig is limited.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lathe fixture that centering accuracy is high, includes chuck (1), its characterized in that: a through hole (2) is formed in the front face of the chuck (1) in a penetrating mode, and an adjusting mechanism (3) is arranged on the front face of the chuck (1);

adjustment mechanism (3) are including dwang (31), fixed column (32) and backup pad (33), the one end fixedly connected with horizontal pole (34) of dwang (31), the surface sliding connection of fixed column (32) has splint (35), the logical groove (36) of the surface looks adaptation of seting up with fixed column (32) are run through in the front of splint (35), bayonet socket (37) have been seted up to one side that splint (35) are close to dwang (31).

2. The lathe jig with high centering accuracy as claimed in claim 1, wherein: the surface of dwang (31) is seted up threadedly, the one end that dwang (31) is close to splint (35) is the arc, the inside looks adaptation of the surface of dwang (31) and bayonet socket (37).

3. The lathe jig with high centering accuracy as claimed in claim 1, wherein: one end of the fixing column (32) is fixedly connected with the front side of the chuck (1), the top of the chuck (1) penetrates through the moving groove (4), and the back side of the supporting plate (33) is fixedly connected with a threaded rod (5).

4. The lathe jig with high centering accuracy as claimed in claim 3, wherein: the outer surface of threaded rod (5) and the inside looks adaptation of shifting chute (4), the surface threaded connection of threaded rod (5) has first turning block (6) and second turning block (7).

5. The lathe jig with high centering accuracy as claimed in claim 4, wherein: the back of first rotating block (6) contacts with the front of chuck (1), the front of second rotating block (7) contacts with the back of chuck (1), the diameter of first rotating block (6) and second rotating block (7) surface is greater than the inside diameter of shifting chute (4).

6. The lathe jig with high centering accuracy as claimed in claim 1, wherein: the surface of dwang (31) and the inside threaded connection of backup pad (33), adjustment mechanism (3) symmetry is provided with threely, the positive fixedly connected with limiting plate (8) of fixed column (32), backup pad (33) are in same water flat line with bayonet socket (37).