CN211305572U

CN211305572U - Work fixture

Info

Publication number: CN211305572U
Application number: CN201922086127.0U
Authority: CN
Inventors: 王俊俊; 包利民; 杨晓
Original assignee: Xi'an Zhuorui Aviation Technology Co ltd
Current assignee: Xi'an Zhuorui Aviation Technology Co ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-08-21
Anticipated expiration: 2029-11-28

Abstract

The utility model discloses a tooling fixture, which is used for clamping and positioning workpieces to be processed and comprises a base, wherein a pair of first clamping seat and a pair of second clamping seat which are oppositely arranged are fixed on the top surface of the base; a first clamping hole is formed in the first clamping seat, and a bushing is arranged in the first clamping hole; a sliding cavity is formed in the second clamping seat, a track is arranged on the inner wall of the sliding cavity, and a sliding block capable of sliding along the track is arranged in the sliding cavity; still including being used for spacing dog, seted up the mounting hole on the dog, install the clamping screw rod in the mounting hole, the one end of clamping screw rod stretches out the dog upper surface and is provided with the nut, the other end of clamping screw rod penetrate to connecting slot's lower groove in with be located the anticreep nut threaded connection in the lower groove. The utility model is simple in operation, and fix a position accuracy, convenience, can satisfy the dimensional tolerance and the required precision of the high part of size precision, reduce the operation degree of difficulty, improve production efficiency.

Description

Work fixture

Technical Field

The utility model belongs to the technical field of the mechanical manufacturing process equipment, concretely relates to frock clamp.

Background

When a workpiece is machined on a machine tool, a plurality of end faces and an excircle need to be machined, and the verticality requirement of the excircle and the end faces and the coaxiality requirement of the excircle and the shaft hole need to be met. During processing, a workpiece to be processed is mainly clamped by the chuck, the end face and the outer circle are turned, the workpiece to be processed is difficult to position during processing, the datum is difficult to align, and the dimensional accuracy is difficult to guarantee in the processing process for parts with high accuracy requirements.

Disclosure of Invention

Defect and not enough to among the prior art, the utility model aims to provide a frock clamp overcomes the yielding, the difficult defect of rectifying of clamping of section bar in the current work piece course of working.

In order to solve the technical problem, the utility model discloses take following technical scheme:

a tooling fixture is used for clamping and positioning a workpiece to be machined and comprises a base, wherein a pair of first clamping seat and a pair of second clamping seat which are oppositely arranged are fixed on the top surface of the base;

the first clamping seat is provided with a first clamping hole, and a bushing is arranged in the first clamping hole;

a sliding cavity is formed in the second clamping seat, a track is arranged on the inner wall of the sliding cavity, and a sliding block capable of sliding along the track is arranged in the sliding cavity; two ends of the sliding cavity are open, a stop block is fixed on one end of the sliding cavity, which is far away from the first clamping hole, and the stop block is used for limiting the sliding block;

the sliding block comprises a limiting section, a connecting section and an aligning section which are integrally designed from top to bottom, a connecting clamping groove is arranged on the limiting section, the front end and the rear end of the connecting clamping groove are open, the upper part of the connecting clamping groove is open, the bottom of the connecting clamping groove is closed, an upper groove and a lower groove which are communicated with each other are arranged on the connecting clamping groove from top to bottom, the left and right width of the upper groove is smaller than that of the lower groove, and a limiting step surface is formed at the joint of the lower groove and the upper groove;

the alignment section is provided with an alignment groove, and an opening of the alignment groove is downward;

the dog on seted up the mounting hole, install the clamping screw rod in the mounting hole, the one end of clamping screw rod stretches out the dog upper surface and is provided with the nut, the other end of clamping screw rod penetrate connect the draw-in groove lower groove in with be located the anticreep nut threaded connection in the groove down, spacing step face is used for spacing to the anticreep nut.

The utility model discloses still have following technical characteristic:

the workpiece to be machined comprises a body fixedly connected, a machined part, a first part to be machined and a second part to be machined, wherein the central axis of the machined part, the central axis of the first part to be machined and the central axis of the second part to be machined are mutually perpendicular and intersect at the same intersection point in the body.

The central axis of the base is parallel to the upper surface of the first clamping seat and the lower surface of the second clamping seat, and the top surface of the base is perpendicular to the bottom surface of the first clamping seat and the bottom surface of the second clamping seat respectively.

The bush is used for clamping the processed part, and the inner circumference of the bush is attached to the outer circumference of the processed part.

The alignment groove is trapezoidal in shape and is used for being clamped into a workpiece to be machined so as to realize the positioning of the workpiece to be machined.

Compared with the prior art, the utility model, profitable technological effect is:

the utility model discloses the clamping is simple, and convenient operation has solved the yielding, the difficult problem of rectifying of clamping of section bar, has shortened the clamping time of work piece, simultaneously, the utility model discloses can treat the portion of processing to two through a frock clamp and process to improve production efficiency, reduced the processing cost, guaranteed processingquality.

Drawings

Fig. 1 is an assembly diagram of the present invention.

Fig. 2 is a side view of the base of the present invention.

Fig. 3 is a schematic view of a slider structure.

Fig. 4 is a schematic view of a bushing structure.

Fig. 5 is a schematic perspective view of the present invention.

The meaning of each reference number in the figures is: 1-base, 2-bush, 3-slide block, 4-baffle block, 5-clamping screw, 6-nut, 7-anti-drop nut, and 8-to-be-processed piece;

101-a first clamping seat, 1011-a first clamping hole, 102-a second clamping seat and 1021-a sliding cavity;

301-a limiting section, 302-a connecting section, 303-an alignment section, 3011-a connecting clamping groove, 30111-an upper groove, 30112-a lower groove, 30113-a limiting step surface and 3031-an alignment groove;

401-mounting holes;

801-body, 802-machined part, 803-first part to be machined, 804-second part to be machined.

The following examples are provided to explain the present invention in further detail.

Detailed Description

The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.

The utility model discloses when carrying out the position description, it should be understood to describe to the position that fig. 1 shows, the terminal surface that the mount and base link to each other in the figure is the tail end of mount, and the one end that the base links to each other with the mounting surface is the head end of base. The terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Example 1:

according to the above technical solution, as shown in fig. 1 to 5, the utility model provides a tooling fixture for clamping and positioning a workpiece to be machined, which comprises a base 1, wherein a pair of first clamping seat 101 and a pair of second clamping seat 102 which are oppositely arranged are fixed on the top surface of the base 1;

a first clamping hole 1011 is formed in the first clamping seat 101, and a bushing 2 is installed in the first clamping hole 1011;

the second clamping seat 102 is provided with a sliding cavity 1021, a rail is arranged on the inner wall of the sliding cavity 1021, a sliding block 3 capable of sliding along the rail is installed in the sliding cavity 1021, two ends of the sliding cavity 1021 are open, a stop block 4 is fixed on one end of the sliding cavity 1021, which is far away from the first clamping hole 1011, the stop block 4 is used for limiting the sliding block 3, the stop block 4 can be welded or fixed on the base 1 by a screw rod, so that the second clamping seat 102 is connected with the sliding block 3, and the sliding block 3 is prevented from sliding out from the opening above the second clamping seat 102.

The slider 3 comprises a limiting section 301, a connecting section 302 and an alignment section 303 which are integrally designed from top to bottom, a connecting clamping groove 3011 is arranged on the limiting section 301, the front end and the rear end of the connecting clamping groove 3011 are open, the upper portion of the connecting clamping groove 3011 is open, the bottom of the connecting clamping groove 3011 is closed, an upper groove 30111 and a lower groove 30112 which are communicated with each other are arranged on the connecting clamping groove 3011 from top to bottom, the left-right width of the upper groove 30111 is smaller than the left-right width of the lower groove 30112, and a limiting step surface 30113 is formed at the connecting position of the lower groove 30112 and the upper groove 30111; the slide 3 can slide into the second clamping seat 102 along the rail, and the workpiece 8 to be processed is placed between the first clamping seat 101 and the second clamping seat 102.

An alignment groove 3031 is formed in the alignment section 303, and an opening of the alignment groove 3031 faces downwards; the alignment section 303 is mainly used for aligning the member to be machined 8.

The dog 4 on seted up mounting hole 401, install clamping screw 5 in the mounting hole 401, the one end of clamping screw 5 stretches out dog 4 upper surface and is provided with nut 6, the other end of clamping screw 5 penetrate in the lower groove 30112 of connecting slot 3011 with be located the anticreep nut 7 threaded connection in lower groove 30112, spacing step face 30113 is used for spacing anticreep nut 7, prevent when drawing in second clamping seat 102 with slider 3, anticreep nut 7 is pulled out lower groove 30112.

As a preferable scheme of the present embodiment, the to-be-processed member 8 includes a body 801, a processed portion 802, a first to-be-processed portion 803, and a second to-be-processed portion 804, which are fixedly connected, a central axis of the processed portion 802, a central axis of the first to-be-processed portion 803, and a central axis of the second to-be-processed portion 804 are mutually perpendicular and intersect at the same intersection point in the body 801, and the processed portion 802 serves as an axial positioning shaft to position a processing direction.

As a preferable mode of this embodiment, the central axis of the base 1 is disposed parallel to the upper surface of the first clamping seat 101 and the lower surface of the second clamping seat 102, and the top surface of the base 1 is disposed perpendicular to the bottom surface of the first clamping seat 101 and the bottom surface of the second clamping seat 102, respectively.

As a preferable solution of this embodiment, the bush 2 is used for clamping the processed portion 802, and the inner circumference of the bush 2 is attached to the outer circumference of the processed portion 802. The bush 2 is used for protecting the processed portion 802, and ensures that the processed portion 802 does not collide and deform due to extrusion.

As a preferable solution of this embodiment, the alignment groove 3031 has a trapezoidal shape for being inserted into the workpiece 8 to be processed to position the workpiece 8, and other shapes of the alignment groove 3031, such as a V shape, may be selected.

Through the technical scheme, the utility model discloses when carrying out adding man-hour of coupling, not only the clamping is simple, and convenient operation has solved the yielding, the difficult characteristics of rectifying of clamping of section bar moreover, has shortened the clamping time of work piece, has improved production efficiency to reduce the processing cost, guaranteed processingquality.

The utility model discloses working process during the use as follows:

when the tool is used, the anti-drop nut 7 is arranged in the lower groove 30112, the stop block 4 is fixedly arranged at one end of the second clamping seat 102 far away from the first clamping hole 1011, one end of the clamping screw 5 extends out of the upper surface of the stop block 4 through the mounting hole 401 and is in threaded connection with the nut 6, the other end of the clamping screw 5 penetrates into the lower groove 30112 of the connecting clamping groove 3011 and is in threaded connection with the anti-drop nut 7 in the lower groove 30112, the slide block 3 is sleeved with the anti-drop nut 7 through the lower groove 30112, the clamping screw 5 is pulled to enable the slide block 3 to enter the sliding cavity 1021 formed in the second clamping seat 102, the workpiece 8 to be machined is placed on the base 1, the body 801 is connected with the top surface of the base 1, the machined part 802 is inserted into the bush 2 arranged in the first clamping hole 1011, the clamping screw 5 is screwed to push the slide block 3 downwards, the slide block 3 is in contact with the body 801 of the workpiece 8 to be machined, the machined part 802 of the workpiece, the dovetail groove of the alignment section 303 is tightly connected with the workpiece 8 to be machined, the clamping screw 5 is screwed, the position of the workpiece 8 to be machined is fixed, relative offset does not occur, it is ensured that the axis of the second machining part of the workpiece 8 to be machined is perpendicularly intersected with the axis of the base 1, the first part 803 to be machined is machined, after machining is completed, the clamping screw 5 is unscrewed, the screw is pulled upwards, the sliding block 3 is made to slide into the second clamping seat 102 along the vertical sliding groove, the workpiece 8 to be machined is taken out of the bushing 2, the clamping machining process of the second part 804 to be machined is the same as that of the first part 803 to be machined, after all machining is completed, the workpiece 8 to be machined is taken down, and the process requirement range is met so that normal machining can be achieved.

As the utility model discloses a further improvement can improve frock clamp's performance, production efficiency according to the shape and the size of the concrete parameter modification frock clamp of work piece.

The utility model discloses not only the clamping is simple, and the clamp force is steady, and convenient operation has solved the yielding, the difficult characteristics of rectifying of clamping of section bar moreover, has shortened the clamping time of work piece, has improved production efficiency to reduce the processing cost, guaranteed processingquality.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. A tool clamp is used for clamping and positioning a workpiece to be machined and is characterized by comprising a base (1), wherein a pair of first clamping seats (101) and a pair of second clamping seats (102) which are oppositely arranged are fixed on the top surface of the base (1);

a first clamping hole (1011) is formed in the first clamping seat (101), and a bushing (2) is installed in the first clamping hole (1011);

a sliding cavity (1021) is formed in the second clamping seat (102), a track is arranged on the inner wall of the sliding cavity (1021), and a sliding block (3) capable of sliding along the track is installed in the sliding cavity (1021); two ends of the sliding cavity (1021) are opened, a stop block (4) is fixed at one end of the sliding cavity (1021) far away from the first clamping hole (1011), and the stop block (4) is used for limiting the sliding block (3);

the sliding block (3) comprises a limiting section (301), a connecting section (302) and an alignment section (303) which are integrally designed from top to bottom, a connecting clamping groove (3011) is arranged on the limiting section (301), the front end and the rear end of the connecting clamping groove are open, the upper portion of the connecting clamping groove (3011) is open, the bottom of the connecting clamping groove is closed, an upper groove (30111) and a lower groove (30112) which are communicated with each other are arranged on the connecting clamping groove (3011) from top to bottom, the left and right width of the upper groove (30111) is smaller than that of the lower groove (30112), and a limiting step face (30113) is formed at the connecting position of the lower groove (30112) and the upper groove (30111);

an alignment groove (3031) is formed in the alignment section (303), and an opening of the alignment groove (3031) is formed downwards;

dog (4) on seted up mounting hole (401), install clamping screw rod (5) in mounting hole (401), the one end of clamping screw rod (5) stretches out dog (4) upper surface and is provided with nut (6), the other end of clamping screw rod (5) penetrate in lower groove (30112) of connecting slot (3011) with be located anti-disengaging nut (7) threaded connection in lower groove (30112), spacing step face (30113) are used for spacing anti-disengaging nut (7).

2. The tooling fixture as recited in claim 1, wherein the member to be machined (8) comprises a body (801) fixedly connected, a machined portion (802), a first portion to be machined (803) and a second portion to be machined (804), and a central axis of the machined portion (802), a central axis of the first portion to be machined (803) and a central axis of the second portion to be machined (804) are perpendicular to each other and intersect at the same intersection point in the body (801).

3. The tooling fixture of claim 1, wherein the central axis of the base (1) is parallel to the upper surface of the first clamping seat (101) and the lower surface of the second clamping seat (102), and the top surface of the base (1) is perpendicular to the bottom surfaces of the first clamping seat (101) and the second clamping seat (102), respectively.

4. A tool holder according to claim 1, wherein the bush (2) is adapted to hold the machined portion (802), and wherein the inner circumference of the bush (2) is adapted to abut the outer circumference of the machined portion (802).

5. The tooling fixture of claim 1, wherein the alignment groove (3031) is trapezoidal in shape and is used for being clamped into the workpiece (8) to be machined so as to position the workpiece (8).