CN212665466U

CN212665466U - Machine tool clamp

Info

Publication number: CN212665466U
Application number: CN202020313132.0U
Authority: CN
Inventors: 刘金龙
Original assignee: Sichuan Hangyu Tengfei Electronic Technology Co ltd
Current assignee: Sichuan Hangyu Tengfei Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2021-03-09
Anticipated expiration: 2030-03-13

Abstract

This utility model discloses a machine tool fixture in the field of machining technology, including a base, an operating platform on top of the base, a lifting assembly between the operating platform and the base, a support block fixed to the operating platform, an electric push rod fixed to the right support block, a clamping block fixed to the left end of the movable rod of the electric push rod, and a side clamping assembly at the top of the clamping block. By adding the side clamping assembly, the clamping block initially clamps the part. This mechanism prevents the part from tilting to the side by clamping multiple sides of the part, and makes the clamped part more stable. By adding the lifting assembly, starting the motor drives the synchronous pulleys to rotate. Through the action of the synchronous belt, all synchronous pulleys rotate simultaneously, which in turn drives the third screw to rotate. The operating platform, threadedly connected to the third screw, rises and falls vertically. This mechanism eliminates the need for workers to bend over, saving physical effort, and is simple to operate.

Description

Machine tool clamp

Technical Field

The utility model relates to the technical field of machining, specifically a machine tool fixture.

Background

A machine tool holder is a device on a machine tool for holding a workpiece and guiding a tool. Which is a jig specially designed for a certain process of a certain workpiece. Its advantages are compact structure, quick and convenient operation, saving labour and high machining precision and productivity. The machine tool clamp is in contact with a positioning reference of the workpiece for determining the correct position of the workpiece in the clamp, thereby ensuring the correct relative position of the workpiece with respect to the tool and the machining movement of the machine tool during machining.

Machine tool clamp among the prior art adopts the grip block to treat to process the part both sides and carries out the centre gripping mostly, and this kind of centre gripping mode is comparatively general, can adapt to most part centre gripping, but stability is relatively poor, is in unsettled state by the part of centre gripping, probably to the side slope by the centre gripping not, drops from the below even, causes the loss.

A machine tool fixture is therefore proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a machine tool clamp to solve and provide the problem among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a machine tool clamp comprises a base, wherein an operating platform is arranged above the base, a lifting assembly is arranged between the operating platform and the base, supporting blocks are symmetrically fixed on the left side and the right side of the top surface of the operating platform, a supporting column is fixed in the middle of the supporting block on the left side, an electric push rod is fixed in the middle of the supporting block on the right side, clamping blocks are fixed at the right end of the supporting column and the left end of a movable rod of the electric push rod, and a side clamping assembly is arranged at the top end of the clamping;

the side centre gripping subassembly includes the movable block of symmetrical sliding connection in centre gripping piece top surface, and the left end of movable block is fixed with the grip block, and two movable blocks threaded connection have first screw rod and second screw rod respectively, and the inner of first screw rod and second screw rod is fixed mutually, and the screw thread of first screw rod and second screw rod sets up for reverse symmetry, and the front end of second screw rod is fixed with the handle.

Preferably, the outer side positions of the corresponding moving blocks of the first screw and the second screw are both fixed with a limiting block.

Preferably, friction pads are fixed to inner surfaces of the clamping plate and the clamping block.

Preferably, the lifting assembly comprises four third screw rods which are respectively connected to four corners of the top surface of the base in a rotating mode, the top end of each third screw rod is connected with the operating platform in a threaded mode and extends out, synchronizing wheels are fixed to the extending sections of the third screw rods, synchronous belts are arranged among the synchronizing wheels, a motor is fixed to the extending end of one of the third screw rods, and the motor is fixed to the base.

Preferably, the bottom ends of the plurality of synchronizing wheels are the same distance from the top surface of the base.

The utility model has the advantages that:

1. by adding the side clamping assembly, after the clamping block preliminarily clamps the part, the handle is rotated to drive the first screw rod and the second screw rod to rotate, so that the two moving blocks simultaneously move inwards, the clamping plates fixed on the moving blocks are driven to clamp the front side edge and the rear side edge of the part, and the mechanism clamps a plurality of side edges of the part, so that the part is prevented from inclining to the side edges, and the clamped part is more stable;

2. through adding lifting unit, starter motor drives the synchronizing wheel and rotates, and through the effect of hold-in range, all synchronizing wheels all rotate simultaneously, drive the third screw rod then and rotate, and threaded connection goes up and down along vertical direction at the operation platform on the third screw rod, and this mechanism does not need staff's work of bowing, saves physical power, and easy operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a top view of the present invention;

fig. 3 is an enlarged schematic view of the structure a of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

the device comprises a base 1, an operation platform 2, a supporting block 3, a supporting column 4, a clamping block 5, a friction pad 6, an electric push rod 7, a lateral clamping assembly 8, a movable block 801, a clamping plate 802, a handle 803, a first screw 804, a second screw 805, a limiting block 806, a lifting assembly 9, a motor 901, a synchronous wheel 902, a synchronous belt 903 and a third screw 904.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Example one

Referring to fig. 1-3, the present invention provides a technical solution: a machine tool clamp comprises a base 1, wherein an operating platform 2 is arranged above the base 1, a lifting assembly 9 is arranged between the operating platform 2 and the base 1, supporting blocks 3 are symmetrically fixed on the left side and the right side of the top surface of the operating platform 2, a supporting column 4 is fixed in the middle of the left supporting block 3, an electric push rod 7 is fixed in the middle of the right supporting block 3, the electric push rod 7 is externally connected with a power supply, clamping blocks 5 are fixed on the right end of the supporting column 4 and the left end of a movable rod of the electric push rod 7, and a side clamping assembly 8 is arranged at the top end of the right clamping;

the side clamping assembly 8 comprises moving blocks 801 symmetrically and slidably connected to the top surface of the clamping block 5, a clamping plate 802 is fixed to the left end of each moving block 801, a first screw 804 and a second screw 805 are respectively in threaded connection with the two moving blocks 801, the inner ends of the first screw 804 and the second screw 805 are fixed to each other, the threads of the first screw 804 and the second screw 805 are arranged in a reverse symmetry mode, a handle 803 is fixed to the front end of the second screw 805, and a limiting block 806 is fixed to the outer side of each moving block 801 corresponding to the first screw 804 and the second screw 805 so as to prevent the moving blocks 801 from being separated from the top surface of the clamping block 5 due to excessive force.

The friction pads 6 are fixed on the inner surfaces of the clamping plate 802 and the clamping block 5, so that the friction force on the part is increased, and the clamping is more stable.

The working principle in the embodiment is as follows:

starting the electric push rod 7, moving the clamping block 5 fixed at the left end of the movable rod of the electric push rod 7 leftwards along the horizontal direction, clamping the clamping block 5 fixed at the right end of the left support column 4 mutually, the part is preliminarily clamped, the handle 803 is rotated to drive the second screw 805 fixed on the handle 803 to rotate, because the first screw 804 is fixed with the second screw 805, the first screw 804 is driven to rotate, because the threads of the first screw 804 and the second screw 805 are arranged in a reverse symmetry manner, the two moving blocks 801 respectively connected with the first screw 804 and the second screw 805 in a threaded manner are driven to move inwards at the same time, the clamping plate 802 fixed at the left end of the moving blocks 801 moves inwards along with the moving blocks, the unclamped side surface of the part is clamped, this mechanism has avoided the part to the side slope through carrying out the centre gripping to a plurality of sides of part, makes the part of centre gripping more firm simultaneously.

Example two

On the basis of embodiment one, lifting unit 9 includes four and rotates the third screw rod 904 of connecting in base 1 top surface four corners respectively, the top and the operation platform 2 threaded connection of third screw rod 904 and stretch out, and the section that stretches out of third screw rod 904 is fixed with synchronizing wheel 902, be provided with the hold-in range 903 between a plurality of synchronizing wheel 902, the distance that the bottom of a plurality of synchronizing wheels 902 reaches base 1 top surface is the same, the end that stretches out of one of them third screw rod 904 is fixed with motor 901, motor 901 is external to have the power, motor 901 is fixed with base 1.

Starter motor 9, it fixes the third screw rod 904 rotation at the motor 9 output to drive one of them, then, it fixes synchronizing wheel 902 rotation on third screw rod 904 to drive, because all be fixed with synchronizing wheel 902 on four third screw rods, and be provided with hold-in range 903 between four synchronizing wheel 902, thereby it rotates four third screw rods 904 of connection on base 1 to drive simultaneously to rotate, because operation platform 2 and third screw rod 904 threaded connection, make operation platform 2 remove along vertical direction, this mechanism does not need staff's work of bowing, save physical power, and easy operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A machine tool fixture, comprising a base (1), characterized in that: an operating platform (2) is provided above the base (1), and a lifting assembly (9) is provided between the operating platform (2) and the base (1). ), the left and right sides of the top surface of the operating platform (2) are symmetrically fixed with support blocks (3), the middle of the left support block (3) is fixed with a support column (4), and the right support block ( 3) An electric push rod (7) is fixed in the middle, a clamping block (5) is fixed on the right end of the support column (4) and the left end of the movable rod of the electric push rod (7), and the clamping block ( 5) The top end is provided with a side clamping assembly (8);

The side clamping assembly (8) includes a moving block (801) symmetrically slidably connected to the top surface of the clamping block (5), a clamping plate (802) is fixed at the left end of the moving block (801), and two The moving block (801) is respectively screwed with a first screw (804) and a second screw (805), the inner ends of the first screw (804) and the second screw (805) are fixed to each other, and the first screw (804) and the threads of the second screw rod (805) are arranged in reverse symmetry, and the front end of the second screw rod (805) is fixed with a handle (803).

2 . The machine tool fixture according to claim 1 , wherein the outer positions of the corresponding moving blocks ( 801 ) of the first screw rod ( 804 ) and the second screw rod ( 805 ) are fixed with limit blocks ( 806 ). 3 . ).

3 . The machine tool fixture according to claim 1 , wherein friction pads ( 6 ) are fixed on the inner surfaces of the clamping plate ( 802 ) and the clamping block ( 5 ). 4 .

4. A machine tool fixture according to claim 1, characterized in that: the lifting assembly (9) comprises four third screws (904) respectively rotatably connected to the four corners of the top surface of the base (1), the The top end of the three screws (904) is threadedly connected to the operating platform (2) and protrudes out, and the protruding section of the third screw (904) is fixed with a synchronizing wheel (902), and a plurality of the synchronizing wheels (902) are arranged between There is a synchronous belt (903), and a motor (901) is fixed to the protruding end of one of the third screws (904), and the motor (901) is fixed to the base (1).

5 . The machine tool fixture according to claim 4 , wherein the distances from the bottom ends of the plurality of synchronizing wheels ( 902 ) to the top surface of the base ( 1 ) are the same. 6 .