CN220533589U

CN220533589U - Machine tool fixture

Info

Publication number: CN220533589U
Application number: CN202322175686.5U
Authority: CN
Inventors: 刘瑞民
Original assignee: Hebei Qianlu Precision Machinery Manufacturing Co ltd
Current assignee: Hebei Qianlu Precision Machinery Manufacturing Co ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-02-27
Anticipated expiration: 2033-08-14

Abstract

The utility model provides a machine tool fixture, which comprises a fixture body, wherein the fixture body is used for clamping a piece, and the fixture body comprises: the base is provided with a chute; the movable jaw is slidably arranged in the chute; the fixed jaw is fixedly arranged on the base and positioned at one end of the base, and the movable jaw and the fixed jaw are matched to clamp a workpiece; the first clamping plate is arranged on one side face of the movable jaw close to the fixed jaw; the second clamping plate is arranged on one side face of the fixed jaw close to the movable jaw; the connecting surface of the movable jaw and the first clamping plate and the connecting surface of the fixed jaw and the second clamping plate are provided with matched comb teeth; the pushing assembly is arranged in the chute and used for pushing the movable jaw to move along the chute towards the fixed jaw, so that the movable jaw and the fixed jaw clamp a workpiece.

Description

Machine tool fixture

Technical Field

The utility model relates to the technical field of machine tools, in particular to a machine tool fixture.

Background

In industry, machine tools are often used to machine products; and the machine tool is used for processing products, and a machine tool clamp is used for clamping a workpiece for processing. Chinese patent No. CN201620385343.9 discloses a machine tool fixture and a machine tool, comprising a base, a movable clamp block and a fixed clamp block, wherein the movable clamp block is arranged on the base, the base is provided with a chute, the movable clamp block faces the fixed clamp block and is slidably connected to the chute, a rotating screw rod for controlling the movable clamp block to move along the chute is arranged on the movable clamp block, a fixed block for fixing the movable clamp block is further arranged on the rotating screw rod, one end of the rotating screw rod is inserted into the fixed clamp block, the other end of the rotating screw rod is an adjusting end, a rotating hole for inserting the rotating screw rod is arranged on the movable clamp block, a thrust bearing is arranged at the bottom of the rotating hole, one end of the rotating screw rod inserted into the movable clamp block is connected to the thrust bearing in a matched manner, labor is saved in the process of clamping a workpiece, and the clamping efficiency of the workpiece is improved. However, such a clamp has the following drawbacks that the movable clamp block and the fixed clamp block are used for clamping a workpiece for processing, and after long-term use, the movable clamp block and the fixed clamp block are worn, so that the stability of clamping the workpiece is gradually reduced, and therefore the movable clamp block and the top clamp block need to be replaced regularly, and the replacement of the movable clamp block and the top clamp block is troublesome, and the corresponding cost is high.

Disclosure of Invention

The utility model provides a machine tool fixture for solving the technical problems.

The technical scheme adopted by the utility model is as follows:

a machine tool fixture comprising a fixture body for clamping a piece, the fixture body comprising: the base is provided with a chute; the movable jaw is slidably arranged in the chute; the fixed jaw is fixedly arranged on the base and positioned at one end of the base, and the movable jaw and the fixed jaw are matched to clamp a workpiece; the first clamping plate is arranged on one side face of the movable jaw close to the fixed jaw; the second clamping plate is arranged on one side face of the fixed jaw close to the movable jaw; the connecting surface of the movable jaw and the first clamping plate and the connecting surface of the fixed jaw and the second clamping plate are provided with matched comb teeth; the pushing assembly is arranged in the sliding groove and used for pushing the movable jaw to move along the sliding groove towards the fixed jaw, so that the movable jaw and the fixed jaw clamp a workpiece.

The upper end face of the base is provided with a connecting opening, the connecting opening is positioned at two sides of the chute, the bottom of the fixed jaw is provided with a connecting block corresponding to the connecting opening, and the connecting block and the fixed jaw are integrally formed

The sliding groove is a T-shaped groove, the movable jaw and the bottom of the pushing assembly are matched with the T-shaped groove, and the two sides of the sliding connection part of the movable jaw and the T-shaped groove are symmetrically provided with corner cleaning grooves.

The sliding groove is internally provided with a plurality of first threaded holes fixed with the machine tool, and a plurality of conical grooves are also formed in the sliding groove.

The first clamping plate is fixed with the movable jaw and the second clamping plate is fixed with the fixed jaw through screws.

The pushing assembly comprises a support and a driving screw, a threaded hole II is formed in the support, the driving screw penetrates through the threaded hole II to be in threaded connection with the support, and one end of the driving screw penetrates through the support to be connected with the movable jaw.

The movable jaw is provided with a fixed groove corresponding to the support.

The utility model discloses a mushroom connector, including drive screw, movable jaw, link, first and second, drive screw with the one end that movable jaw is connected is equipped with the mushroom connector, drive screw's the other end is equipped with the regulation end, set up spread groove and spread groove two on the movable jaw, spread groove and spread groove two phase intercommunication, spread groove two's both sides inner wall set up with the corresponding spread groove of mushroom connector is three, the mushroom connector joint is in the spread groove is three.

The bottom of support has been seted up the round hole, the steel ball has been placed in the round hole, the screw hole third has been seted up to the support both sides, the screw hole third with the round hole is linked together, the screw hole three threaded connection has the jackscrew, will through the jackscrew the steel ball is fixed in the awl inslot, in order to with the support is fixed on the base.

The utility model has the beneficial effects that:

according to the machine tool clamp, the first clamping plate and the second clamping plate are respectively arranged on the movable jaw and the fixed jaw, the workpiece is clamped through the first clamping plate and the second clamping plate, the movable installation mode of screws is adopted between the movable jaw and the first clamping plate and between the fixed jaw and the second clamping plate, after the first clamping plate and the second clamping plate are worn, the movable jaw and the fixed jaw are convenient to replace, in addition, high-precision comb teeth are arranged on the connecting surface between the movable jaw and the first clamping plate and the connecting surface between the fixed jaw and the second clamping plate, so that the stability of clamping the workpiece is improved, and the problem that the first clamping plate and the fixed second clamping plate are upturned is guaranteed as much as possible.

Drawings

FIG. 1 is a schematic view of the overall structure of a machine tool fixture according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a base according to an embodiment of the present utility model;

FIG. 3 is a schematic view of the pushing assembly, movable jaw and stationary jaw according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a pusher assembly according to one embodiment of the present utility model;

FIG. 5 is a schematic view of a movable jaw according to an embodiment of the present utility model;

fig. 6 is a schematic view of the structure of a stand according to an embodiment of the present utility model.

Reference numerals illustrate:

1-a base; 2-a chute; 3-moving jaw; 4-fixed jaw; 5-a first splint; 6-a second splint; 7-comb teeth; 8-pushing assembly; 9-connecting openings; 10-connecting blocks; 11-corner clearing grooves; 12-a first threaded hole; 13-a conical groove; 14-supporting seats; 15-a drive screw; 16-a threaded hole II; 17-a fixed groove; 18-mushroom connector; 19-a regulatory end; 20-connecting groove I; 21-a second connecting groove; 22-connecting groove III; 23-round holes; 24-steel ball; 25-threaded hole three.

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. 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.

As shown in fig. 1, a machine tool fixture according to an embodiment of the present utility model includes a fixture body for a clamping member, and in particular, the fixture body may include: the device comprises a base 1, a movable jaw 3, a fixed jaw 4, a first clamping plate 5, a second clamping plate 6 and a pushing assembly 8, wherein a chute 2 is formed in the base 1; the movable jaw 3 is slidably arranged in the chute 2; the fixed jaw 4 is fixedly arranged on the base 1 and is positioned at one end of the base 1, and the movable jaw 3 and the fixed jaw 4 are matched for clamping a workpiece; the first clamping plate 5 is arranged on one side surface of the movable jaw 3 close to the fixed jaw 4; the second clamping plate 6 is arranged on one side surface of the fixed jaw 4 close to the movable jaw 3; the connecting surface of the movable jaw 3 and the first clamping plate 5 and the connecting surface of the fixed jaw 4 and the second clamping plate 6 are provided with matched comb teeth 7; the pushing component 8 is arranged in the chute 2, and the pushing component 8 is used for pushing the movable jaw 3 to move along the chute 2 towards the fixed jaw 4, so that the movable jaw 3 and the fixed jaw 4 clamp a workpiece.

In the implementation of the utility model, the machining precision of the comb teeth 7 is plus or minus 0.3 wire, wherein experiments prove that under the condition that the normal clamping torque (30 KN) is doubled, the first clamping plate 5 and the second clamping plate 6 are tilted upwards by 0.5 wire.

In one embodiment of the present utility model, as shown in fig. 2 and 3, a connection opening 9 is formed on the upper end surface of the base 1, the connection opening 9 is located at two sides of the chute 2, a connection block 10 corresponding to the connection opening 9 is arranged at the bottom of the fixed jaw 4, and the connection block 10 and the fixed jaw 4 are integrally formed. The fixed jaw 4 is placed in the connecting opening 9 and is fixed on the base 1 by a screw.

In one embodiment of the utility model, as shown in fig. 2 and 5, the chute 2 is a T-shaped slot, the bottoms of the movable jaw 3 and the pushing component 8 are matched with the T-shaped slot, the two sides of the sliding connection part of the movable jaw 3 and the T-shaped slot are symmetrically provided with the corner clearing slots 11, the processing is facilitated by the arranged corner clearing slots 11, and meanwhile, the phenomenon of locking caused by the fact that the corner clearing is not in place is avoided.

In one embodiment of the present utility model, as shown in fig. 2, a plurality of screw holes 12 fixed with a machine tool are formed in the chute 2, a plurality of tapered grooves 13 are also formed in the chute 2, and in a specific embodiment of the present utility model, the tapered grooves 13 are formed at equal intervals, and the interval between adjacent tapered grooves 13 is 25mm.

In one embodiment of the utility model, the first clamping plate 5 and the movable jaw 3 and the second clamping plate 6 and the fixed jaw 4 are fixed by screws, and the screws are arranged, so that the first clamping plate 5 and the second clamping plate 6 are convenient to detach and replace after being worn.

In one embodiment of the present utility model, as shown in fig. 4, 5 and 6, the pushing assembly 8 may include a support 14 and a driving screw 15, where the movable jaw 3 is provided with a fixing slot 17 corresponding to the support 14, and the support 14 is provided with a threaded hole two 16. The transmission screw 15 passes through the threaded hole II 16 and is connected with the support 14 in a threaded manner, and one end of the transmission screw 15 passes through the support 14 and is connected with the movable jaw 3. One end of the drive screw 15 connected with the movable jaw 3 is provided with a mushroom connector 18, and the other end of the drive screw 15 is provided with an adjusting end 19. The movable jaw 3 is provided with a first connecting groove 20 and a second connecting groove 21, the first connecting groove 20 is communicated with the second connecting groove 21, the inner walls of the two sides of the second connecting groove 21 are provided with a third connecting groove 22 corresponding to the mushroom connector 18, the mushroom connector 18 is clamped in the third connecting groove 22, the depth of the first connecting groove 20 is larger than that of the second connecting groove 21, the ruler diameter of the first connecting groove 20 is larger than that of the mushroom connector 18, when the mushroom connector 18 is connected with the movable jaw 3, the mushroom connector 18 is firstly placed in the first connecting groove 20, then moves upwards along the second connecting groove 21, and the mushroom connector 18 is clamped in the third connecting groove 22. Round hole 23 has been seted up to the bottom of support 14, has placed steel ball 24 in the round hole 23, and the screw hole third 25 has been seted up to support 14 both sides, and screw hole third 25 is linked together with round hole 23, and screw hole third 25 threaded connection has the jackscrew (the jackscrew is not illustrated in the figure), fixes steel ball 24 in conical groove 13 through the jackscrew to fix support 14 on base 1.

During installation, the movable jaw 3 is moved to one end of the base 1, the support 14 is positioned outside the base 1, the transmission screw 15 passes through the support 14, the mushroom connector 18 on the transmission screw 15 is connected with the movable jaw 3, and then the movable jaw 3 is moved towards the fixed jaw 4, at the moment, the support 14 is slidably installed on the base 1 and moves along the chute 2. When the clamp body is used for clamping a workpiece, the movable jaw 3 and the support 14 are moved to a proper position, then the jackscrew is screwed to abut against the steel ball 24, so that the support 14 is fixed on the base 1, the workpiece is placed between the first clamping plate 5 and the second clamping plate 6 after the support 14 is fixed, and the movable jaw 3 is slightly moved towards the fixed jaw 4 by rotating the adjusting end 19 through a spanner, so that the workpiece is clamped.

According to the machine tool clamp disclosed by the embodiment of the utility model, the first clamping plate 5 and the second clamping plate 6 are respectively arranged on the movable clamp jaw 3 and the fixed clamp jaw 4, the first clamping plate 5 and the second clamping plate 6 clamp a workpiece, the movable mounting mode of screws is adopted between the movable clamp jaw 3 and the first clamping plate 5 and between the fixed clamp jaw 4 and the second clamping plate 6, when the first clamping plate 5 and the second clamping plate 6 are worn, the replacement is convenient, the movable clamp jaw 3 and the fixed clamp jaw 4 do not need to be replaced, in addition, the high-precision comb teeth 7 are arranged on the connecting surface between the movable clamp jaw 3 and the first clamping plate 5 and the connecting surface between the fixed clamp jaw 4 and the second clamping plate 6, the stability of clamping the workpiece is improved, and the problem that the first clamping plate 5 and the fixed second clamping plate 6 are tilted upwards is ensured as much as possible.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A machine tool fixture comprising a fixture body for clamping a piece, the fixture body comprising:

the base is provided with a chute;

the movable jaw is slidably arranged in the chute;

the fixed jaw is fixedly arranged on the base and positioned at one end of the base, and the movable jaw and the fixed jaw are matched to clamp a workpiece;

the first clamping plate is arranged on one side face of the movable jaw close to the fixed jaw;

the second clamping plate is arranged on one side face of the fixed jaw close to the movable jaw;

the connecting surface of the movable jaw and the first clamping plate and the connecting surface of the fixed jaw and the second clamping plate are provided with matched comb teeth;

the pushing assembly is arranged in the sliding groove and used for pushing the movable jaw to move along the sliding groove towards the fixed jaw, so that the movable jaw and the fixed jaw clamp a workpiece.

2. The machine tool clamp according to claim 1, wherein a connecting opening is formed in the upper end face of the base, the connecting opening is located on two sides of the sliding groove, a connecting block corresponding to the connecting opening is arranged at the bottom of the fixed jaw, and the connecting block and the fixed jaw are integrally formed.

3. The machine tool clamp according to claim 2, wherein the sliding groove is a T-shaped groove, the bottoms of the movable jaw and the pushing component are matched with the T-shaped groove, and angle clearing grooves are symmetrically formed on two sides of the sliding connection part of the movable jaw and the T-shaped groove.

4. A machine tool fixture according to claim 3, wherein a plurality of first threaded holes fixed with the machine tool are formed in the sliding groove, and a plurality of conical grooves are formed in the sliding groove.

5. The machine tool clamp of claim 4, wherein the first clamping plate and the movable jaw and the second clamping plate and the fixed jaw are fixed by screws.

6. The machine tool clamp according to claim 5, wherein the pushing assembly comprises a support and a driving screw, a threaded hole II is formed in the support, the driving screw penetrates through the threaded hole II to be in threaded connection with the support, and one end of the driving screw penetrates through the support to be connected with the movable jaw.

7. The machine tool clamp according to claim 6, wherein the movable jaw is provided with a fixing groove corresponding to the support.

8. The machine tool clamp according to claim 7, wherein a mushroom connector is arranged at one end, connected with the movable jaw, of the driving screw, an adjusting end is arranged at the other end of the driving screw, a first connecting groove and a second connecting groove are formed in the movable jaw, the first connecting groove is communicated with the second connecting groove, a third connecting groove corresponding to the mushroom connector is formed in inner walls of two sides of the second connecting groove, and the mushroom connector is clamped in the third connecting groove.

9. The machine tool clamp according to claim 8, wherein a round hole is formed in the bottom of the support, steel balls are placed in the round hole, threaded holes three are formed in two sides of the support, the threaded holes three are communicated with the round hole, jackscrews are connected with the threaded holes three in a threaded mode, and the steel balls are fixed in the conical grooves through the jackscrews to fix the support on the base.