CN210938211U

CN210938211U - Machine tool clamp

Info

Publication number: CN210938211U
Application number: CN201921868292.5U
Authority: CN
Inventors: 颜标武; 胡大庆
Original assignee: Dongguan Wangjia Hardware Products Co ltd
Current assignee: Dongguan Wangjia Hardware Products Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-07
Anticipated expiration: 2029-10-31

Abstract

The utility model relates to a machine tool fixture, which comprises a positioning seat and a locking piece, wherein the positioning seat comprises a positioning component and a limiting block, the positioning component and the limiting block are arranged on the positioning seat, the limiting block is arranged on one side of the positioning component, the limiting block is fixedly connected with the positioning seat, and a hardware workpiece is arranged in the positioning component; the locking piece comprises a pressing piece and a pull rod, wherein the pressing piece penetrates through the limiting block, extends to the upper part of the positioning assembly and is connected with the limiting block in a sliding manner; the pull rod is in threaded connection with the pressing piece, the elastic piece is sleeved on the pull rod, and the elastic piece is a pressure spring; when the pull rod is pulled, the hardware workpiece is unlocked by the locking piece, the hardware workpiece is conveniently taken out and put into the locking piece, the hardware workpiece is locked by the locking piece when the pull rod is pushed, the hardware workpiece limited on the positioning seat is positioned on the positioning seat more stably and rapidly through the structure, and the operation efficiency is improved.

Description

Machine tool clamp

Technical Field

The utility model belongs to the technical field of hardware equipment processing technique and specifically relates to a machine tool fixture is related to.

Background

A machine tool clamp is a device used for clamping hardware workpieces on a machine tool. When a hardware workpiece is machined on a machine tool fixture, the hardware workpiece must be held in a precisely positioned position before machining in order to make the surface of the hardware workpiece meet the required technical requirements. In the prior art, as shown in fig. 1 and 2, there is a hardware workpiece, which includes a cylindrical portion a and a U-shaped groove portion b, where the cylindrical portion a and the U-shaped groove portion b are integrally disposed, the cylindrical portion a includes a first circular bottom wall a1 and an annular groove side wall a2 disposed at an edge of the bottom wall, a protrusion structure a3 protruding toward one side of the side wall is disposed at a center of the bottom wall, and a circular hole a4 is opened at the center of the protrusion structure; the U-shaped groove portion b includes a second bottom wall b1 disposed at an angle to the first bottom wall a1, the second bottom wall b1 is rectangular in shape, and both side edges of the second bottom wall b1 are provided with two U-shaped groove side walls b2 opposing the U-shaped groove portion b. Because the shape of the product is irregular, the hardware workpiece is usually held by hands to be processed, and the mode is low in efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a machine tool fixture, it can make spacing hardware component on the positioning seat fix a position on the positioning seat more stably fast, improves the operating efficiency.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a machine tool fixture comprises a positioning seat and a locking piece, wherein the positioning seat comprises a positioning assembly and a limiting block, the positioning assembly and the limiting block are arranged on the positioning seat, the limiting block is arranged on one side of the positioning assembly, the limiting block is fixedly connected with the positioning seat, the positioning assembly comprises a limiting groove for placing a hardware workpiece, and the shape of the limiting groove is consistent with the shape of the outer contour of a cylindrical part of the hardware workpiece;

the latch fitting includes casting die and pull rod, the stopper is worn to establish by the casting die, casting die and stopper sliding connection, the stopper is worn out and extends to the spacing groove top to the one end of casting die, the pull rod is fixed with the casting die.

By adopting the technical scheme, the hardware workpiece is placed in the positioning assembly, the cylindrical part of the hardware workpiece is positioned by the limiting groove of the positioning assembly, the pull rod is pushed, one end of the pressing piece extends towards one side of the limiting groove and is clamped on the upper surface of the cylindrical part of the hardware workpiece, and the hardware workpiece is locked in the limiting groove; when the pull rod is pulled, the pull rod drives the pressing piece to move away from one side of the limiting groove, the pressing piece is separated from the upper surface of the cylindrical part of the hardware workpiece, and the locking piece unlocks the hardware workpiece; through the structure, the hardware workpiece limited on the positioning seat is more stably and quickly fixed on the positioning seat, and the operation efficiency is improved.

The utility model discloses further set up to: locating component still includes first locating piece, second locating piece and third locating piece, first locating piece and third locating piece set up relatively, and first locating piece and third locating piece are contradicted with the both sides wall of five metals work piece U-shaped groove part, and the second locating piece sets up between first locating piece and third locating piece, and the second locating piece is contradicted with the second diapire of five metals work piece U-shaped groove part.

By adopting the technical scheme, after the cylindrical part of the hardware workpiece is arranged in the limiting groove, the second bottom wall of the U-shaped groove part of the hardware workpiece leans against the second positioning block for positioning, and the two side walls of the U-shaped groove part of the hardware workpiece lean against the first positioning block and the third positioning block for positioning respectively; through the structure, the positioning component completes the positioning of the hardware workpiece, and the positioning is faster and more convenient.

The utility model discloses further set up to: the casting die includes the thimble, and the stopper is worn to establish by the thimble and extends to the spacing groove top, and the one end that extends the spacing groove top of thimble is contradicted with hardware components cylindric part upper surface, thimble and stopper sliding connection.

Through adopting above-mentioned technical scheme, when promoting the pull rod, the thimble can contradict with the cylindric partial upper surface of hardware work piece, and during the pulling pull rod, the thimble can break away from with the cylindric partial upper surface of hardware work piece, and it is more convenient to fix a position.

The utility model discloses further set up to: the casting die further comprises a cushion block, the cushion block is arranged at one end, far away from the limiting groove, of the ejector pin, and the cushion block is fixedly connected with the ejector pin.

Through adopting above-mentioned technical scheme, when promoting the pull rod, the cushion can promote thimble and the cylindric partial upper surface of hardware work piece and contradict, and when pulling the pull rod, the cushion can drive the thimble and can break away from with the cylindric partial upper surface of hardware work piece, and it is convenient more fast to fix a position.

The utility model discloses further set up to: the pull rod comprises a rod part and a handle part, one end of the rod part, which is far away from the limiting groove, is fixedly connected with the handle part, and one end of the rod part, which is close to the limiting groove, is fixed with the cushion block.

Through adopting above-mentioned technical scheme, the stalk portion is convenient for the staff and is held, promotes or pulls the pull rod through holding the stalk portion and controls the casting die to the location of hardware component, and it is convenient more fast to fix a position.

The utility model discloses further set up to: the pull rod further comprises an elastic piece, the elastic piece is sleeved on the rod portion, the elastic piece drives the rod portion to slide and reset, one end of the elastic piece is abutted to the cushion block, and a supporting piece abutted to the elastic piece is arranged at the other end of the elastic piece.

By adopting the technical scheme, when the pull rod is pushed, the elastic piece drives the rod part to slide and reset, so that the pressing piece is provided with an elastic force towards the direction of the limiting groove, the ejector pin extends out of the limiting block and is abutted against the upper surface of the cylindrical part, and the hardware workpiece is locked; when the pull rod is pulled, the elastic piece contracts, the pressing piece is separated from the upper surface of the cylindrical part of the hardware workpiece, the locking piece unlocks the hardware workpiece, the hardware workpiece is conveniently taken out and put in, and the positioning is more rapid and convenient.

The utility model discloses further set up to: the elastic piece is a pressure spring.

Through adopting above-mentioned technical scheme, the elastic component is in the state of compressed all the time, therefore the elastic component can give the casting die elasticity towards the spacing groove direction all the time, makes the thimble stretch out the stopper and contradict with cylindric part's upper surface to make the casting die can continuously lock hardware components.

The utility model discloses further set up to: the supporting piece comprises a first supporting block and a second supporting block, the first supporting block is fixed on one side of the positioning seat, the first supporting block and the limiting block are located on the same side, the second supporting block is fixed at one end, far away from the positioning seat, of the first supporting block, and the second supporting block is vertically arranged on the upper surface of the first supporting block;

the rod part penetrates through the second supporting block and is in sliding connection with the second supporting block, and two ends of the elastic part are respectively abutted against the cushion block and the second supporting block.

By adopting the technical scheme, the rod part penetrates through the second supporting block and is in sliding connection with the second supporting block, two ends of the elastic part are respectively abutted against the cushion block and the second supporting block, when the pull rod is pushed, the elastic part drives the rod part to slide and reset, and then the pressing part is provided with elastic force towards the direction of the limiting groove, so that the ejector pin extends out of the limiting block and is abutted against the upper surface of the cylindrical part, and the hardware workpiece is locked; when the pull rod is pulled, the elastic piece contracts, the pressing piece is separated from the upper surface of the cylindrical part of the hardware workpiece, the locking piece unlocks the hardware workpiece, the hardware workpiece is conveniently taken out and put in, and the positioning is more rapid and convenient.

In conclusion, the beneficial technical effects of the invention are as follows: through setting up positioning seat and telescopic latch fitting for spacing hardware work piece on the positioning seat is fixed a position on the positioning seat more steadily fast, improves the operating efficiency.

Drawings

Fig. 1 is a perspective view of a hardware workpiece of embodiment 1.

Fig. 2 is a rear view of the hardware workpiece of embodiment 1.

Fig. 3 is a schematic view of the entire structure of embodiment 1.

In the figure, a cylindrical part; b. a U-shaped groove portion; a1, a first bottom wall; a2, side wall of annular groove; a3, bump structure; a4, round hole; b1, a second bottom wall; b2, U-shaped groove side wall; 1. positioning seats; 11. a positioning assembly; 111. a limiting groove; 112. a first positioning block; 113. a second positioning block; 114. a third positioning block; 12. a limiting block; 2. a support member; 21. a first support block; 22. a second support block; 3. a lock; 31. pressing parts; 311. a thimble; 312. cushion blocks; 32. a pull rod; 331. a rod portion; 332. a handle; 333. an elastic member.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 3, for the utility model discloses a machine tool fixture, including positioning seat 1, telescopic latch fitting 3 and support piece 2, it can make spacing hardware and hardware work piece on positioning seat 1 fix a position on positioning seat 1 more stably fast.

The positioning seat 1 comprises a positioning assembly 11 and a limiting block 12, the positioning assembly 11 comprises a limiting groove 111, a first positioning block 112, a second positioning block 113 and a third positioning block 114, the limiting groove 111 is arranged at the center of the positioning seat 1, the shape of the limiting groove 111 is circular, the shape of the limiting groove 111 is consistent with the shape of the outer contour of a hardware workpiece cylindrical part a, and the hardware workpiece cylindrical part a is arranged in the limiting groove 111;

the first positioning block 112 and the third positioning block 114 are oppositely arranged, the first positioning block 112 and the third positioning block 114 are abutted against two U-shaped groove side walls b2 of the U-shaped groove part b of the hardware workpiece, the second positioning block 113 is arranged between the first positioning block 112 and the third positioning block 114, and the second positioning block 113 is abutted against a second bottom wall b1 of the U-shaped groove part b of the hardware workpiece;

the limiting block 12 is arranged on one side of the positioning assembly 11, preferably, the limiting block 12 is arranged on one side of the limiting groove 111, the limiting block 12 and the limiting groove 111 are vertically arranged on the positioning seat 1, and the limiting block 12 is fixedly connected with the positioning seat 1;

the supporting member 2 includes a first supporting block 21 and a second supporting block 22, the first supporting block 21 is fixed on one side of the positioning seat 1, preferably, the first supporting block 21 and the limiting block 12 are located on the same side, the second supporting block 22 is fixed on one end of the first supporting block 21 away from the positioning seat 1, and the second supporting block 22 is vertically disposed on the upper surface of the first supporting block 21.

The locking piece 3 comprises a pressing piece 31, a pull rod 32 and an elastic piece 333, the pressing piece 31 comprises a thimble 311 and a cushion block 312, the thimble 311 penetrates through the limiting block 12 and is in sliding connection with the limiting block 12, one end of the thimble 311 penetrates through the limiting block 12 and extends to the upper part of the limiting groove 111, and the end of the thimble 311 extending to the upper part of the limiting groove 111 is enabled to be abutted against the upper surface of the cylindrical part a of the hardware workpiece; cushion block 312 is disposed at an end of thimble 311 away from retaining groove 111, and cushion block 312 is fixedly connected to thimble 311.

The pull rod 32 comprises a rod part 331, a handle part 332 and an elastic part 333, the rod part 331 is arranged through the second supporting block 22 and is in sliding connection with the second supporting block 22, and one end of the rod part 331, which is far away from the limiting groove 111, is fixedly connected with the handle part 332; one end of the rod portion 331 close to the limiting groove 111 is in threaded connection with the cushion block 312, so that the thimble 311 can be driven to extend out of or retract into the limiting block 12 in the process that the pull rod 32 is pushed and pulled;

the elastic member 333 is sleeved on the rod 331, two ends of the elastic member 333 are respectively abutted against the cushion block 312 and the second supporting block 22, and the elastic member 333 is a compression spring.

The principle of the above embodiment is as follows: when the pull rod 32 is pulled, the elastic piece 333 is further compressed, the thimble 311 is retracted into the limiting block 12, and the process that the thimble 311 is separated from the upper surface of the cylindrical part a of the hardware workpiece is realized, so that the hardware workpiece is unlocked, and the hardware workpiece is convenient to take out and put in;

after the pull rod 32 is pushed, the elastic piece 333 which is further compressed after the pull rod 32 is pulled gives an elastic force to the pressing piece 31 towards the direction of the limiting groove 111, so that the thimble 311 extends out of the limiting block 12 and is clamped on the surface of the cylindrical part a, and the hardware workpiece is locked; after the pull rod 32 is pushed, the reset elastic piece 333 is always in a compressed state, so that an elastic force towards the direction of the limiting groove 111 can be always given to the pressing piece 31, the pressing piece 31 can still abut against the upper surface of the cylindrical part a, the pressing piece 31 can continuously lock the hardware workpiece, and the hardware workpiece can be better positioned.

Make spacing hardware component on positioning seat 1 fix a position on positioning seat 1 more steadily fast through above-mentioned structure, improve the operating efficiency.

The embodiments of the present invention are the preferred embodiments of the present invention, and the protection scope of the present invention is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A machine tool fixture is characterized in that: the hardware workpiece locating device comprises a locating seat (1) and a locking piece (3), wherein the locating seat (1) comprises a locating component (11) and a limiting block (12), the locating component (11) and the limiting block (12) are arranged on the locating seat (1), the limiting block (12) is arranged on one side of the locating component (11), the limiting block (12) is fixedly connected with the locating seat (1), the locating component (11) comprises a limiting groove (111) used for placing a hardware workpiece, and the shape of the limiting groove (111) is consistent with the outer contour shape of a cylindrical part (a) of the hardware workpiece;

the locking piece (3) comprises a pressing piece (31) and a pull rod (32), the pressing piece (31) penetrates through a limiting block (12), the pressing piece (31) is connected with the limiting block (12) in a sliding mode, one end of the pressing piece (31) penetrates out of the limiting block (12) and extends to the upper portion of a limiting groove (111), and the pull rod (32) is fixed with the pressing piece (31).

2. A machine tool holder according to claim 1 wherein: locating component (11) still includes first locating piece (112), second locating piece (113) and third locating piece (114), first locating piece (112) and third locating piece (114) set up relatively, and first locating piece (112) and third locating piece (114) are contradicted with the both sides wall of five metals work piece U-shaped groove part (b), and second locating piece (113) set up between first locating piece (112) and third locating piece (114), and second locating piece (113) are contradicted with second diapire (b1) of five metals work piece U-shaped groove part (b).

3. A machine tool holder according to claim 1 wherein: casting die (31) includes thimble (311), and stopper (12) are worn to establish and extend to spacing groove (111) top in thimble (311), and thimble (311) extend to the one end of spacing groove (111) top and conflict with hardware components cylindric part (a) upper surface, thimble (311) and stopper (12) sliding connection.

4. A machine tool holder according to claim 3 wherein: pressing piece (31) still includes cushion (312), cushion (312) set up in thimble (311) keep away from the one end of spacing groove (111), cushion (312) and thimble (311) fixed connection.

5. A machine tool holder according to claim 4 wherein: the pull rod (32) comprises a rod part (331) and a handle part (332), one end, far away from the limiting groove (111), of the rod part (331) is fixedly connected with the handle part (332), and one end, close to the limiting groove (111), of the rod part (331) is fixed with the cushion block (312).

6. A machine tool holder according to claim 5 wherein: the pull rod (32) further comprises an elastic piece (333), the elastic piece (333) is sleeved on the rod portion (331), the elastic piece (333) drives the rod portion (331) to slide and reset, one end of the elastic piece (333) is abutted to the cushion block (312), and a supporting piece (2) abutted to the elastic piece (333) is arranged at the other end of the elastic piece (333).

7. A machine tool holder according to claim 6 wherein: the elastic piece (333) is a pressure spring.

8. A machine tool holder according to claim 6 wherein: the supporting piece (2) comprises a first supporting block (21) and a second supporting block (22), the first supporting block (21) is fixed on one side of the positioning seat (1), the first supporting block (21) and the limiting block (12) are located on the same side, the second supporting block (22) is fixed at one end, away from the positioning seat (1), of the first supporting block (21), and the second supporting block (22) is vertically arranged on the upper surface of the first supporting block (21);

the rod part (331) penetrates through the second supporting block (22) and is in sliding connection with the second supporting block (22), and two ends of the elastic part (333) are respectively abutted against the cushion block (312) and the second supporting block (22).