CN220362278U - Fixed fixture for machine tool body - Google Patents

Abstract

The utility model relates to the technical field of machine tool body fixtures, and discloses a fixing fixture for a machine tool body, which comprises: the clamping device comprises a displacement plate, a pressing plate and clamping fingers, wherein the clamping fingers are slidably arranged on the outer side of the pressing plate, a positioning groove is formed in the positioning plate and located on the outer side of the displacement plate, a fixing plate is arranged on one side of the top of the displacement plate, a positioning bolt is arranged between the fixing plate and the positioning groove, and a spring is arranged on the outer side of the positioning bolt.

Description

Fixed fixture for machine tool body

Technical Field

The utility model relates to the technical field of machine tool body fixtures, in particular to a fixing fixture for a machine tool body.

Background

The machine tool fixture is one fixture for clamping workpiece and guiding cutter, and features compact structure, fast operation, convenient operation and saving in power, and may be used in contact with workpiece to determine the correct position of workpiece in the fixture and thus ensure the correct position of workpiece in machining relative to the cutter and the machining motion of the machine tool. The numerical control lathe fixture in the current market cannot be flexibly disassembled, clamping fingers cannot be replaced when the fixture is damaged, the replacement cost is high, and the labor intensity of staff is greatly increased due to the fact that the structure is complex and the production efficiency is low.

The publication number is: CN213411169U discloses a fixed fixture for a numerically-controlled machine tool body, which comprises a first through hole, a pressing plate, a clamp finger, a groove, a bearing, a clamping groove, a displacement plate, a nut, a transmission rod, a second through hole, plane threads and clamping teeth, wherein the clamping groove is formed in one side surface of the pressing plate, the bearing is inlaid on the pressing plate through the groove, the first through hole is formed in the bearing in a penetrating manner, the displacement plate is arranged below the pressing plate, the plane threads are formed on the surface of the displacement plate, the second through hole is formed in the displacement plate in a penetrating manner, a nut is arranged at one end of the transmission rod, a bolt is connected to the nut, the pressing plate and the displacement plate are clamped and fixed through the bolt and the nut, and the clamp finger is slidably mounted in the clamping groove of the pressing plate. The utility model has the advantages of replaceable clamping fingers, simple structure, convenient processing and reduced labor intensity of staff.

According to the technical scheme, the clamping fingers are clamped or loosened through the rotation control of the displacement plate, but the displacement plate is lack of a limiting mechanism, after the workpiece is clamped by the rotation displacement plate, the displacement plate is easy to automatically rotate due to lack of limiting, and in the workpiece clamping process, the problem that the clamping force is insufficient and the workpiece clamping is unstable is solved.

Disclosure of Invention

The utility model aims to provide a fixed clamp for a machine tool body, which aims to solve the problems that a displacement plate provided in the prior art lacks a limiting mechanism, after a workpiece is clamped by a rotary displacement plate, the displacement plate is easy to rotate automatically due to lack of limiting, and the clamping force is insufficient and the workpiece is unstable in the workpiece clamping process.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a fixture for a machine tool body, comprising: displacement board, clamp plate and clamp indicate, displacement board bottom rotates and is equipped with the locating plate, displacement board top is equipped with the clamp plate, the clamp plate outside slides and is equipped with the clamp and indicates, the locating slot has been seted up in the inside displacement board outside that is located of locating plate, displacement board top one side is equipped with the fixed plate, be equipped with positioning bolt between fixed plate and the locating slot, the positioning bolt outside is equipped with the spring.

Further, the positioning bolt comprises a screw rod portion and a nut, the diameter of the screw rod portion is smaller than the width of the positioning groove, the hexagon head of the screw rod portion is located below the positioning plate, the nut is located above the fixing plate, and a handle is arranged on one side of the top of the fixing plate.

Further, the top end of the spring is abutted against the bottom surface of the fixed plate, a gasket is arranged on the upper side of the positioning groove and positioned on the outer side of the positioning bolt, and the bottom end of the spring is abutted against the top surface of the gasket.

Further, the clamping finger is U-shaped, the clamping finger bottom is provided with a latch, and the top surface of the displacement plate is provided with a planar thread matched with the latch.

Further, the T-shaped bolt is arranged in the center of the pressing plate and used for fixing the whole fixing clamp in the T-shaped groove of the machine tool body, and the T-shaped bolt is fixedly connected with the positioning plate.

Furthermore, the number of the positioning grooves is three, and the three positioning grooves are uniformly distributed on the positioning plate in the circumferential direction.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the locating plate, the displacement plate and the fixing plate, when the fixing clamp for the machine tool body is used, the whole clamp is fixed in the T-shaped groove of the machine tool body through the T-shaped bolt, the locating bolt is unscrewed, then the displacement plate is rotated, the clamp finger is driven to displace outside the pressing plate through the cooperation of the planar thread on the displacement plate and the clamping tooth at the bottom of the clamp finger, the clamp finger is clamped and loosened, after the clamp finger clamps and fixes a workpiece, the locating plate and the displacement plate are tightly connected together through screwing the locating bolt, the displacement plate is prevented from rotating under stress in the machining process, the workpiece clamping is unstable, meanwhile, the spring is always in a compressed state, the locating plate and the locating plate are always abutted through the elasticity of the spring, so that the locating bolt looseness caused by vibration in the machining process is prevented, and the locating stability is improved.

Drawings

FIG. 1 is a perspective view of a fixture for a machine tool body of the present utility model;

FIG. 2 is a perspective view of another view of a fixture for a machine tool body according to the present utility model;

FIG. 3 is a front view of a fixture for a machine tool body according to the present utility model;

fig. 4 is a plan view of a fixing jig for a machine tool body according to the present utility model.

In the figure: 1-positioning plates; 2-displacement plates; 3-pressing plates; 4-clamping fingers; a 5-T bolt; 6, a positioning groove; 7-fixing plates; 8-a handle; 9-positioning bolts; 10-springs; 11-spacer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-4, the present utility model provides a technical solution: a fixture for a machine tool body, comprising: displacement board 2, clamp plate 3 and press from both sides and indicate 4, displacement board 2 bottom rotation is equipped with locating plate 1, and displacement board 2 top is equipped with clamp plate 3, and clamp plate 3 outside slides and is equipped with and press from both sides and indicate 4, and locating plate 1 inside is located displacement board 2 outside and has seted up constant head tank 6, and displacement board 2 top one side is equipped with fixed plate 7, is equipped with positioning bolt 9 between fixed plate 7 and the constant head tank 6, and the positioning bolt 9 outside is equipped with spring 10. Through the cooperation of plane screw thread and clamp finger 4 bottom latch on displacement board 2, drive clamp finger 4 and carry out the displacement in the clamp plate 3 outside, realize clamping finger 4's centre gripping and loosen, after clamp finger 4 is fixed to the work piece centre gripping, through screwing positioning bolt 9, make locating plate 1 and displacement board 2 tightly link together, prevent that displacement board 2 atress from producing in the course of working and rotate, cause the work piece centre gripping unstable, spring 10 is in compression state all the time simultaneously, through spring 10's elasticity, can make the constant butt between fixed plate 7 and the locating plate 1, when guaranteeing to fix a position stably, prevent that positioning bolt 9 that causes because of the vibration in the course of working from becoming flexible, improve the stability of location.

The positioning bolt 9 comprises a screw rod portion and a nut, the diameter of the screw rod portion is smaller than the width of the positioning groove 6, the hexagon head of the screw rod portion is located below the positioning plate 1, the nut is located above the fixing plate 7, a handle 8 is arranged on one side of the top of the fixing plate 7, and the positioning bolt can be conveniently held by a person through the handle 8 fixed on the fixing plate 7 to rotate the displacement plate 2. The top end of the spring 10 is abutted with the bottom surface of the fixed plate 7, a gasket 11 is arranged on the outer side of the positioning bolt 9 above the positioning groove 6, and the bottom end of the spring 10 is abutted with the top surface of the gasket 11. The spring 10 is in compression state all the time, through the elasticity of spring 10, can make the constant butt between fixed plate 7 and the locating plate 1, when guaranteeing to fix a position stably, prevent to become flexible because of the positioning bolt 9 that the vibration in the course of working caused, improve the stability of location.

The clamp finger 4 is U-shaped, clamping teeth are arranged at the bottom of the clamp finger 4, and plane threads matched with the clamping teeth are arranged on the top surface of the displacement plate 2. Through the cooperation of plane threads on the displacement plate 2 and clamping teeth at the bottom of the clamping finger 4, the clamping finger 4 is driven to displace outside the pressing plate 3, and clamping and loosening of the clamping finger 4 are realized.

The center of the pressing plate 3 is provided with a T-shaped bolt 5, the T-shaped bolt 5 is used for fixing the whole fixing clamp into a T-shaped groove of the machine tool body, and the T-shaped bolt 5 is fixedly connected with the positioning plate 1.

The constant head tank 6 has three, and three constant head tank 6 is being circumference evenly arranged on locating plate 1, evenly arranges through locating tank 6 for the constant head tank both ends are the blind end, can restrict displacement board 2 rotation angle, prevent that displacement board 2 rotation angle is too big, cause clamp finger 4 to break away from clamp plate 3 and cause clamp finger 4 to drop, when needs dismantle change clamp finger 4 simultaneously, through taking off positioning bolt 9, make displacement board 2 can 360 degrees rotations, realize clamp finger 4 take out.

Working principle: when the fixture for the lathe bed is used, fix whole anchor clamps in the T type inslot of lathe bed through T type bolt 5, through unscrewing positioning bolt 9, then rotate displacement board 2, through the cooperation of the flat screw thread on the displacement board 2 and clamp finger 4 bottom latch, drive clamp finger 4 and carry out the displacement in the clamp plate 3 outside, realize clamp finger 4's centre gripping and unclamp, after clamp finger 4 is fixed to the work piece centre gripping, through screwing positioning bolt 9, make positioning board 1 and displacement board 2 tightly link together, prevent that displacement board 2 atress from producing the rotation in the course of working, cause work piece centre gripping unstability, spring 10 is in compressed state all the time simultaneously, through the elasticity of spring 10, can make the constant butt between fixed plate 7 and the positioning board 1, when guaranteeing the location stability, prevent that positioning bolt 9 is not hard up because of the vibration in the course of working causes, improve the stability of location.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (6)

1. A fixture for a machine tool body, comprising: displacement board (2), clamp plate (3) and clamp indicate (4), its characterized in that: the utility model discloses a displacement board, displacement board (2) bottom rotates and is equipped with locating plate (1), displacement board (2) top is equipped with clamp plate (3), clamp plate (3) outside slip is equipped with and presss from both sides to indicate (4), locating slot (6) have been seted up in displacement board (2) outside to inside being located of locating plate (1), displacement board (2) top one side is equipped with fixed plate (7), be equipped with positioning bolt (9) between fixed plate (7) and locating slot (6), the positioning bolt (9) outside is equipped with spring (10).

2. A fixture for a machine tool body according to claim 1, characterized in that: the positioning bolt (9) comprises a screw rod portion and a nut, the diameter of the screw rod portion is smaller than the width of the positioning groove (6), a hexagon head of the screw rod portion is located below the positioning plate (1), the nut is located above the fixing plate (7), and a handle (8) is arranged on one side of the top of the fixing plate (7).

3. A fixture for a machine tool body according to claim 2, characterized in that: the top end of the spring (10) is abutted against the bottom surface of the fixed plate (7), a gasket (11) is arranged outside the positioning bolt (9) above the positioning groove (6), and the bottom end of the spring (10) is abutted against the top surface of the gasket (11).

4. A fixture for a machine tool body according to claim 1, characterized in that: the clamping finger (4) is U-shaped, clamping teeth are formed in the bottom of the clamping finger (4), and plane threads matched with the clamping teeth are formed in the top surface of the displacement plate (2).

5. A fixture for a machine tool body according to claim 1, characterized in that: the clamp plate (3) central authorities are equipped with T type bolt (5), T type bolt (5) are used for fixed lathe bed's T type inslot with whole mounting fixture, T type bolt (5) and locating plate (1) fixed connection.

6. A fixture for a machine tool body according to claim 1, characterized in that: the three positioning grooves (6) are uniformly distributed on the positioning plate (1) in the circumferential direction.