CN211249209U

CN211249209U - Clamping device capable of simultaneously processing multiple workpieces

Info

Publication number: CN211249209U
Application number: CN201922213621.9U
Authority: CN
Inventors: 马德成; 张彦杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-08-14
Anticipated expiration: 2029-12-11

Abstract

The utility model discloses a clamping device that can process many work pieces simultaneously, this clamping device include the base and the clamping part of constituteing by head end clamping part, middle clamping part and terminal clamping part. The clamping device can complete four-side processing of a plurality of workpieces through one-time clamping, can improve the positioning precision and the processing precision of the workpieces, and can also greatly improve the production efficiency.

Description

Clamping device capable of simultaneously processing multiple workpieces

Technical Field

The utility model relates to the field of machining, especially, relate to a clamping device that is used for carrying out four sides processing to multiplex spare simultaneously.

Background

In the prior art, workpieces needing to be subjected to multi-surface machining can be disassembled and assembled for many times, and the workpieces need to be repositioned every time when being clamped, so that the machining precision of the workpieces is influenced. Further, for workpieces of different sizes and different lengths, it is generally necessary to specially design the clamping device, resulting in waste of the clamping device and an increase in production costs.

For workpieces requiring batch processing, particularly workpieces requiring multi-surface processing, such as workpieces having a polygonal cross-sectional shape, for example, a quadrilateral (e.g., square or rectangular), or a shaft-like part, there is a need to detach and attach the workpiece once per workpiece, which increases the number of production steps.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present inventors have conducted intensive studies to provide a clamping device capable of simultaneously performing four-side machining on multiple workpieces, wherein the clamping device can complete four-side machining on multiple workpieces by one-time clamping, so that positioning accuracy and machining accuracy of the workpieces can be improved, and production efficiency can be greatly improved.

According to the utility model discloses, clamping device includes the base, is fixed in the head end clamping part of base one end and also installs middle clamping part and the terminal clamping part on the base, and wherein, head end clamping part and terminal clamping part include backup pad, centre gripping dish, first round pin axle and bearing.

The utility model discloses in, middle clamping part sets up N, centre gripping N +1 work piece together with head end clamping part and terminal clamping part.

Preferably, the middle clamping part comprises a middle supporting plate, a second clamping disc, a supporting shaft, a second screw and a second pin shaft, wherein the middle supporting plate is fixed on the base 1, the supporting shaft is embedded in the middle supporting plate through a bearing, and the second clamping disc is fixed on the supporting shaft through the second screw respectively.

The utility model discloses in, be equipped with T type groove on the base, through the T type screw bolt and the nut that pass T type groove with head end clamping part locking and fix on the base, centre gripping part and terminal clamping part move on the base through adjusting T type screw bolt and nut. The two long edges of the base are provided with lugs, the base is provided with a U-shaped groove, a screw can penetrate through the U-shaped groove to fix the base on a machine tool workbench, and the length of the base is the maximum value within the effective processing range of the machine tool.

The utility model discloses in, the head end clamping part includes head end backup pad and first round pin axle, and on the head end backup pad was fixed in the base, the centre gripping dish was fixed in the head end backup pad through the bearing on, terminal clamping part included terminal backup pad and first round pin axle. Preferably, the structure of the end support plate is symmetrical to that of the head support plate.

The utility model discloses in, it is protruding to be equipped with the first location arch and the second location of the same quantity respectively on centre gripping dish and second centre gripping dish, corresponds to the locating hole that sets up on the terminal surface of the work piece of treating processing respectively.

The utility model discloses in, be provided with first spacing hole in the head end backup pad, be provided with the spacing hole of second on the centre gripping dish, end support plate 401 is provided with the spacing hole of fifth, and the intermediate bottom plate is equipped with the spacing hole of third, supports and is equipped with the spacing hole of fourth in the epaxial radial direction.

The utility model provides a but clamping device of many work pieces of simultaneous processing has following beneficial effect:

1. the tool has the advantages of convenient use, suitability for workpieces with different sizes, different section shapes and different lengths, higher adaptability and production cost saving.

2. Can realize one-time clamping processing of a plurality of workpieces by arranging different quantities of middle clamping parts, thereby improving the production efficiency

3. Through realizing clamping once, accomplish the four sides processing to the work piece, avoid the clamping of many times of work piece, improve the positioning accuracy of work piece processing, and then improve the machining precision of work piece.

Drawings

Fig. 1 shows a schematic structural view of a clamping device according to a preferred embodiment of the present invention;

FIG. 2 shows a right side view of the clamping assembly of a preferred embodiment of the present invention after installation of a workpiece;

FIG. 3 shows a cross-sectional view A-A of the clamping device after a workpiece is installed in accordance with a preferred embodiment of the present invention;

fig. 4 shows an assembly schematic of a head end support plate of a preferred embodiment of the invention;

fig. 5 shows a schematic structural view of a clamping disk according to a preferred embodiment of the present invention;

fig. 6 shows a schematic structural view of an intermediate support plate according to a preferred embodiment of the present invention;

fig. 7 is a schematic view showing a structure of a support shaft according to a preferred embodiment of the present invention;

description of the reference numerals

1-base, 101-lug, 102-T-shaped groove,

2-a head end clamping part, 201-a head end supporting plate, 2011-a first limit hole, 202-a clamping disc, 2021-a second limit hole, 2022-a first positioning bulge, 203-a first pin shaft, 204-a bearing,

3-middle clamping part, 301-middle supporting plate, 3011-third limiting hole, 302-second clamping disc, 3021-second positioning bulge, 303-supporting shaft, 3031-fourth limiting hole, 304-second screw, 305-second pin shaft,

4-terminal clamping part, 401-terminal supporting plate, 4011-fifth limiting hole,

a 5-T-shaped bolt, wherein,

6-a nut is arranged on the upper surface of the shell,

7-workpiece, 701-locating hole.

Detailed Description

The features and advantages of the present invention will become more apparent and appreciated from the following detailed description of the invention.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

According to the utility model discloses, a clamping device for can carry out four sides processing to multiplex spare simultaneously is provided, and this clamping device includes base 1, head end clamping part 2, middle clamping part 3 and terminal clamping part 4, as shown in fig. 1.

The utility model discloses in, the work piece that needs batch processing, especially need carry out the work piece that multiaspect was processed, if a certain cross section shape of the work piece of treating processing is the polygon, for example for quadrangle (like square or rectangle), or when the work piece is axle type part, for the convenience of high efficiency processing or process multiplex spare simultaneously, especially four sides processing, how to carry out the centre gripping simultaneously to multiplex spare earlier will be considered, at first need be fixed in the lathe with whole clamping device on, set up base 1 for this reason.

According to the utility model discloses, be provided with lug 101 on two long edges of base 1 be provided with U type groove on the lug 101, on the screw can pass U type groove and be fixed in the lathe workstation with base 1, this base 1 still played the effect of support to whole frock (clamping device promptly).

According to a preferred embodiment of the invention, the length of the base 1 is such that it can take a maximum value within the effective working range of the machine tool, in order to work as many workpieces as possible.

According to the utility model discloses, in order to can once centre gripping or a plurality of work pieces of centre gripping simultaneously, clamping device is provided with head end clamping part 2, middle clamping part 3 and terminal clamping part 4. Wherein, the middle clamping part 3 can be provided with one or more than one, according to the number of the workpieces to be simultaneously processed, generally speaking, the number of the middle clamping part 3 is one less than the number of the workpieces to be simultaneously clamped, so that the N middle clamping parts 3 clamp the N +1 workpieces together with the head end clamping part 2 and the tail end clamping part 4 (wherein N is more than or equal to 1).

The utility model discloses in, head end clamping part 2 is similar with terminal clamping part 4 structure, and has some differences:

specifically, as shown in fig. 2 and 3, the head end clamping portion 2 is fixed to one end of the base 1, and the head end clamping portion 2 can be fixed by: the base 1 is provided with a T-shaped groove 102, and the head end clamping portion 2 can be locked and fixed on the base 1 by a T-shaped bolt 5 and a nut 6 penetrating through the T-shaped groove 102.

According to the utility model discloses, middle clamping part 3 and terminal clamping part 4 also install on base 1 to the accessible is adjusted T type bolt 5 and nut 6's elasticity, realizes the removal on base 1, makes clamping device can be applicable to different length and size's work piece, improves clamping device's suitability, thereby avoids every work piece of processing all to need be equipped with a clamping device, reduction in production cost.

According to the utility model, the head end clamping part 2 comprises a head end supporting plate 201, a clamping disc 202, a first pin shaft 203 and a bearing 204; the head end support plate 201 is fixed to the base 1 by a T-bolt 5 and a nut 6, and the clamping plate 202 is fixed to the head end support plate 201 by a bearing 204, so as to be capable of rotating relative to the head end support plate 201.

According to the utility model discloses, in order to provide sufficient support for a plurality of parts or work pieces, middle clamping part 3 includes intermediate junction plate 301, second centre gripping dish 302, back shaft 303, second screw 304 and second round pin axle 305.

According to the utility model relates to a preferred embodiment, intermediate support plate 301 is fixed in on the base 1 through T type bolt 5 and nut 6, back shaft 303 inlays in intermediate support plate 301 through the bearing inside, second centre gripping dish 302 is fixed in on the back shaft 303 through second screw 304 respectively, and then can realize the relative rotary motion of second centre gripping dish 302 and intermediate support plate 301.

According to the present invention, the structural body and connection relationship of the terminal clamping portion 4 are substantially the same as the head end clamping portion 2, that is, the terminal clamping portion comprises a terminal supporting plate 401, a clamping disc 202, a first pin 203 and a bearing 204; wherein the end support plate 401 and the head end support plate 201 are arranged such that their structures are symmetrical.

The following describes in detail an embodiment of the present invention capable of simultaneously processing a plurality of workpieces, taking the example of being able to clamp two workpieces:

according to the utility model discloses, when needs add man-hour, two work pieces 7 are installed respectively between head end clamping part 2 and middle clamping part 3, middle clamping part 3 and terminal clamping part 4, as shown in fig. 3, its cross-sectional view that is the clamping device behind the installation work piece 7.

According to the utility model, in order to ensure the positioning accuracy of the workpiece 7, a plurality of prefabricated positioning holes 701 are arranged on two end faces of the workpiece 7; correspondingly, the clamping disk 202 and the second clamping disk 302 are respectively provided with the same number of first positioning protrusions 2022 and second positioning protrusions 3021, as shown in fig. 3 and 5.

Specifically, when the first workpiece 7 is positioned on the first positioning protrusion 2022 at the head end clamp portion 2, it is further preferable that the intermediate clamp portion 3 is moved toward the position of the workpiece 7, the second positioning protrusion 3021 is inserted into the positioning hole 701 at the other end of the workpiece 7, and the T-bolt 5 and the nut 6 are tightened.

According to the preferred embodiment of the present invention, the second workpiece 7 is installed on the second positioning protrusion 3021 on the other side of the middle clamping portion 3, and further, the end clamping portion 4 is closed to the position of the workpiece 7, and the first positioning protrusion 2022 is inserted into the positioning hole 701 at the other end of the workpiece 7, and then the T-shaped bolt 5 and the nut 6 are screwed, so as to position and fix the workpiece 7. According to the preferred embodiment of the present invention, the cross-sectional shape of the workpiece 7 may be a square or other quadrangle, or the cross-sectional shape of the workpiece 7 may also be a rectangle or an axis part.

Simultaneously, according to the utility model discloses, the quantity and the position of locating hole 701 and first location arch 2022 do not specifically limit, can carry out a plurality of settings according to the size of work piece 7, and further preferably, can set up different centre gripping dish 202 and second centre gripping dish 302 to different shape work piece 7, and only remain on centre gripping dish 202, the second centre gripping dish 302 with

backup pad

201, 301 or 401 assorted characteristic can. The clamping device can be suitable for workpieces 7 with different cross-sectional shapes, and the adaptability of the clamping device is further improved.

According to the present invention, as shown in fig. 4, the head end supporting plate 201 is further provided with a first limiting hole 2011, and the clamping plate 202 is provided with four second limiting holes 2021 which respectively form an angle of 90 °; the end support plate 401 is provided with a fifth limiting hole 4011, as shown in fig. 5; the intermediate support plate 301 is provided with a third limiting hole 3011, as shown in fig. 6; four fourth stopper holes 3031, each forming an angle of 90 °, are provided in the radial direction on the support shaft 303, as shown in fig. 7.

Further, according to the utility model discloses, the process of carrying out multiaspect processing work piece 7 as follows:

1. when one surface of the workpiece 7 is machined, the head end support plate 201 and the clamping disc 202 penetrate through a first limiting hole 2011 and a second limiting hole 2021 through a first pin shaft 203 for limiting, the middle support plate 301 and the second clamping disc 302 penetrate through a third limiting hole 3011 and a fourth limiting hole 3031 on the support shaft 303 through a second pin shaft 305 for limiting, and the tail end support plate 401 and the clamping disc 202 penetrate through a second limiting hole 2021 and a fifth limiting hole 4011 through the first pin shaft 203 for limiting, so that the workpiece 7 is prevented from rotating during machining.

2. After one surface of the workpiece 7 is machined, the first pin shaft 203 and the second pin shaft 305 which have limiting effects on the head end clamping part 2, the middle clamping part 3 and the tail end clamping part 4 are respectively pulled out, and the workpiece 7 rotates by 90 degrees or 180 degrees; then, the first pin 203 is inserted back between the head end support plate 201 and the clamping plate 202 and between the tail end support plate 401 and the clamping plate 202, and the second pin 305 is inserted back between the tail end support plate and the support shaft 303; further, the workpiece 7 is stopped again.

It is very obvious, the utility model is simple in operation, through a clamping, accomplish the four sides processing to the work piece, avoid the multiple clamping of work piece, save man-hour and cost of labor, still avoid the repeated location simultaneously, improve the positioning accuracy of work piece processing, and then improve the machining precision of work piece.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention has been described above in connection with preferred embodiments, which are merely exemplary and illustrative. On this basis, can be right the utility model discloses carry out multiple replacement and improvement, these all fall into the utility model discloses a protection scope.

Claims

1. A clamping device capable of simultaneously processing multiple workpieces is characterized by comprising a base (1), a head end clamping part (2) fixed at one end of the base (1), a middle clamping part (3) and a tail end clamping part (4) which are also arranged on the base (1),

the head end clamping part (2) and the tail end clamping part (4) comprise supporting plates, clamping discs (202), first pin shafts (203) and bearings (204).

2. Clamping device according to claim 1, characterized in that N intermediate clamping parts (3) are provided, which together with the head clamping part (2) and the tail clamping part (4) clamp an N +1 workpiece.

3. Clamping device according to claim 1, characterized in that the intermediate clamping part (3) comprises an intermediate support plate (301), a second clamping disk (302), a support shaft (303), a second screw (304) and a second pin (305), wherein the intermediate support plate (301) is fixed to the base (1), the support shaft (303) is embedded inside the intermediate support plate (301) by a bearing, and the second clamping disk (302) is fixed to the support shaft (303) by the second screw (304) respectively.

4. Clamping device according to claim 1, characterized in that a T-shaped groove (102) is provided on the base (1), that the head clamping part (2) is locked and fixed on the base (1) by means of a T-bolt (5) and a nut (6) which pass through the T-shaped groove (102), and that the intermediate clamping part (3) and the end clamping part (4) are moved on the base (1) by adjusting the T-bolt (5) and the nut (6).

5. Clamping device according to claim 1, characterized in that the base (1) is provided with lugs (101) on both long sides, which are provided with U-shaped grooves through which screws can be passed for fixing the base (1) to the machine table, the length of the base (1) taking a maximum value within the effective working range of the machine.

6. Clamping device according to claim 1, characterized in that the head end clamping part (2) comprises a head end support plate (201) and a first pin (203), the head end support plate (201) being fixed to the base (1), the clamping disc (202) being fixed to the head end support plate (201) by means of a bearing (204), the tail end clamping part (4) comprising a tail end support plate (401) and the first pin (203).

7. Clamping device according to claim 6, characterized in that the structure of the end support plate (401) and the head end support plate (201) are symmetrical.

8. A clamping device according to claim 1, characterized in that the same number of first positioning projections (2022) and second positioning projections (3021) are provided on the clamping plate (202) and the second clamping plate (302), respectively, corresponding to the positioning holes (701) provided on the end face of the workpiece (7) to be machined.

9. The clamping device as claimed in claim 1, wherein a first limiting hole (2011) is formed in the head end support plate (201), a second limiting hole (2021) is formed in the clamping disc (202), and a fifth limiting hole (4011) is formed in the tail end support plate (401).

10. A clamping device according to claim 3, characterized in that the intermediate support plate (301) is provided with a third position-limiting hole (3011), and a fourth position-limiting hole (3031) is provided in the radial direction on the support shaft (303).