CN210756619U

CN210756619U - Thin-wall part machining clamp device

Info

Publication number: CN210756619U
Application number: CN201921818458.2U
Authority: CN
Inventors: 徐波杰; 冯全威; 熊叶胜
Original assignee: Ningbo United Tool Co ltd
Current assignee: Ningbo United Tool Co ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-16
Anticipated expiration: 2029-10-28

Abstract

The thin-wall part processing clamp device comprises a positioning sleeve and a positioning seat located in the positioning sleeve, wherein a plurality of transverse notches and vertical notches are uniformly arranged on the positioning seat in a circumferential mode, a first containing cavity is formed in the center of the positioning seat, a first pushing block is arranged in the containing cavity, a second containing cavity is formed in the center of the first pushing block, a thin-wall part is arranged below the second pushing block, when a plurality of long blocks of the first pushing block descend, the positioning spring pieces are driven to downwards expand outwards, and after the long blocks contact the inner side of the thin-wall part, a plurality of short blocks of the second pushing block continue downwards to drive the auxiliary positioning spring pieces to downwards expand outwards, and at the moment, the auxiliary positioning spring pieces can enter inner measuring holes of the thin-wall part to clamp the thin-wall part firmly. The utility model discloses following beneficial effect has: the positioning spring piece is used for pre-positioning, secondary positioning and clamping are carried out through the auxiliary positioning spring piece, the fixing effect of the thin-wall part and the clamp is good, the lug part of the thin-wall part cannot be influenced, and the rejection rate is low.

Description

Thin-wall part machining clamp device

Technical Field

The utility model belongs to the anchor clamps field, concretely relates to thin wall spare adds clamping apparatus device.

Background

The upper circumference of the existing thin-wall part 13 is integrally provided with a plurality of lugs 131, the lugs 131 are very thin, holes are formed in the lugs 131, the thin-wall part 13 is generally pressed through a pressing rod, the pressing rod needs to be pressed in the holes of the lugs 131 of the thin-wall part 13, and then the clamping effect of the thin-wall part 13 is completed, so that subsequent work is facilitated.

However, the pressure bar directly acts on the hanging lug 131 of the thin-wall part 13, which can cause the hanging lug 131 to be crushed, and the flatness of the thin-wall part 13 is affected, because the connecting part of the hanging lug 131 is very thin, so that the waste products are very much.

Disclosure of Invention

Not enough to prior art, the utility model provides a thin wall spare processing fixture device solves current thin wall spare 13 anchor clamps very simple and easy, and direct action is on the hangers 131 of thin wall spare 13, crushes hangers 131 easily, leads to the problem that the waste product increases.

The utility model discloses a following technical scheme realizes.

The thin-wall part processing clamp device comprises a positioning sleeve and a positioning seat positioned in the positioning sleeve, wherein a plurality of transverse notches and vertical notches are uniformly arranged on the positioning seat in a circumferential mode, a first accommodating cavity is arranged in the center of the positioning seat, a first push block is arranged in the accommodating cavity, a plurality of long blocks are distributed on the first push block in a circumferential mode and embedded into the transverse notches of the positioning seat, a second accommodating cavity is arranged in the center of the first push block, a second push block is arranged in the second accommodating cavity, a plurality of short blocks are distributed on the second push block in a circumferential mode and embedded into other transverse notches, the long blocks are matched with positioning spring pieces, the positioning spring pieces are arranged in the vertical notches, the short blocks are matched with auxiliary positioning spring pieces, and the auxiliary positioning spring pieces are arranged in the remaining vertical notches, the short block and the auxiliary positioning spring piece are matched with the inclined plane through inclined planes, the long block and the positioning spring piece are matched with the inclined plane through inclined planes, the positioning spring piece and the auxiliary positioning spring piece are both provided with a plurality of triangular clamping blocks and trapezoidal positioning blocks, a thin-wall piece is arranged below the second push block, when the long blocks of the first push block descend, the positioning spring piece is driven to downwards expand outwards, and after the long blocks of the second push block contact the inner side of the thin-wall piece, the short blocks of the second push block continue downwards to drive the auxiliary positioning spring piece to downwards expand outwards, and at the moment, the auxiliary positioning spring piece can enter the inner measuring hole of the thin-wall piece to clamp the thin-wall piece firmly. Through changing the form of original anchor clamps, change the anchor clamps of interior knot formula into, it is little to the influence of thin wall spare, and the rejection rate is low, and the clamp force of anchor clamps is very big moreover.

Preferably, the triangular clamping blocks are positioned at two sides of the outer parts of the positioning spring piece and the auxiliary positioning spring piece, and the trapezoidal positioning blocks are positioned at the inner sides of the triangular clamping blocks. The triangular clamping blocks are positioned on two sides, so that clamping is convenient, and the trapezoidal positioning blocks have the auxiliary limiting function, so that damage to thin-wall parts is reduced.

Preferably, the number of the triangular clamping blocks is two on one side, and the number of the trapezoidal positioning blocks is two.

Preferably, a first clamp body and a second clamp body are further arranged above the positioning sleeve, a flange is arranged at the upper end of the second clamp body, and a tensioning screw rod penetrates through the first clamp body, the second clamp body and the flange. The unification is driven by the movement of the tensioning screw.

Preferably, the front end of the tensioning screw is connected with a gasket, and the gasket is positioned in the first push block.

Preferably, the height difference between the tooth sharp points of the triangular clamping blocks on the positioning spring piece and the auxiliary positioning spring piece is 0.03mm-0.05 mm.

Preferably, the number of the long blocks is three, and the number of the short blocks is nine.

Compared with the prior art: the positioning spring piece is used for pre-positioning, secondary positioning and clamping are carried out through the auxiliary positioning spring piece, the fixing effect of the thin-wall part and the clamp is good, the lug part of the thin-wall part cannot be influenced, and the rejection rate is low.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an enlarged view of a portion a in fig. 2 according to the present invention.

Fig. 4 is a schematic structural view of the present invention when it is engaged with a thin-walled member.

Fig. 5 is a top view of the present invention.

Fig. 6 is a cross-sectional view at B-B of the present invention.

Fig. 7 is a schematic structural diagram of a thin-walled member according to the present invention.

Detailed Description

A thin-wall part processing clamp device comprises a positioning sleeve 1 and a positioning seat 2 positioned in the positioning sleeve 1, wherein a plurality of transverse notches and vertical notches are uniformly arranged on the circumference of the positioning seat 2, a first containing cavity is arranged at the center of the positioning seat, a first push block 5 is arranged in the containing cavity, a plurality of long blocks 41 are circumferentially distributed on the first push block 5, the plurality of long blocks 41 are embedded in the transverse notches of the positioning seat 2, a second containing cavity is arranged at the center of the first push block 5, a second push block 3 is arranged in the second containing cavity, a plurality of short blocks 31 are circumferentially distributed on the second push block 3, the short blocks 31 are embedded in other transverse notches, the long blocks 41 are matched with the positioning spring pieces 4, the positioning spring pieces 4 are arranged in the vertical notches, the short blocks 31 are matched with auxiliary positioning spring pieces 7, the auxiliary positioning spring pieces 7 are arranged in the remaining vertical notches, the short block 31 and the auxiliary positioning spring piece 7 are matched with an inclined plane, the long block 41 and the positioning spring piece 4 are matched with the inclined plane, the positioning spring piece 4 and the auxiliary positioning spring piece 7 are arranged, the positioning spring piece 4 and the auxiliary positioning spring piece 7 are both provided with a plurality of triangular clamping blocks 71 and trapezoidal positioning blocks 72, a thin-wall piece 13 is arranged below the second push block 3, when the long blocks 41 of the first push block 5 descend to drive the positioning spring piece 4 to downwards expand outwards, and after contacting the inner side of the thin-wall piece 13, the short blocks 31 of the second push block 3 continue downwards to drive the auxiliary positioning spring piece 7 to downwards expand outwards, at the moment, the auxiliary positioning spring piece 7 can enter an inner measuring hole of the thin-wall piece 13 to clamp the thin-wall piece 13 firmly, the triangular clamping blocks 71 are positioned at two sides of the outer parts of the positioning spring piece 4 and the auxiliary positioning spring piece 7, the trapezoidal positioning block 72 is located on the inner side of the triangular clamping block 71, one side of the triangular clamping block 71 is two, the trapezoidal positioning blocks 72 are two, the first clamp body 11 and the second clamp body 10 are further arranged above the positioning sleeve 1, the flange 9 is arranged at the upper end of the second clamp body 10, the tensioning screw 8 penetrates through the first clamp body 11, the second clamp body 10 and the flange 9, the front end of the tensioning screw 8 is connected with the gasket 12, the gasket 12 is located in the first push block 5, the height difference between tooth tip points of the triangular clamping block 71 on the positioning spring piece 4 and the auxiliary positioning spring piece 7 is 0.03mm-0.05mm, the number of the long blocks 41 is three, and the number of the short blocks 31 is nine.

Example (b): firstly, the flange 9 and the second fixture body 10 are arranged on a machine tool, screws are screwed, the tensioning screw 8 is screwed on a main shaft of the machine tool, other assembled parts are integrally arranged on the second fixture body 10, and the screws on the second fixture body 10 are screwed.

The machine tool is started, the machine tool spindle stretches back and forth to drive the tensioning screw rod 8, the gasket 12, the first push block 5 and the second push block 3 to move together, when the machine tool spindle clamps and moves backwards, the first push block 5 moves downwards, the long block 41 moves downwards to drive the positioning spring piece 4 to move downwards, and the long block 41 and the positioning spring piece 4 are matched with an inclined plane in a way that the inclined plane is matched with the inclined plane, so that the spring piece 4 moves downwards and outwards, 3 positioning spring pieces 4 contact the thin-wall piece 13 firstly to play a centering role, each positioning spring piece 4 is provided with 4 small tooth forms with 60 degrees, and the tooth tip point of each tooth form has a height difference of 0.03mm-0.05mm, so that the change of the inner hole of the thin-wall piece 13 can be guaranteed, and meanwhile, the thin-wall piece 13 can be fully contacted.

Because the first push block 5 and the second push block 3 have a fit clearance, the second push block 3 is floating, after the 3 positioning spring pieces 4 contact the thin-wall piece 13, the tensioning screw 8 drives the second push block 3 to be pulled downwards continuously, the short block 31 is downward, the short block 31 and the auxiliary positioning spring piece 7 are matched with the inclined plane through the inclined plane, and the 9 auxiliary positioning spring pieces 7 can continue to descend and expand because the tooth point of each tooth form has a height difference of 0.03mm-0.05mm, so that the auxiliary positioning spring pieces 7 contact the thin-wall piece 13 again to clamp the thin-wall piece 13 firmly.

Regardless of the positioning spring plate 4 and the auxiliary positioning spring plate 7, a plurality of triangular clamping blocks 71 and trapezoidal positioning blocks 72 are arranged, the triangular clamping blocks 71 are 60-degree small teeth and play a main clamping role, and the trapezoidal positioning blocks 72 mainly play an auxiliary limiting role and prevent the thin-wall part 13 from being crushed.

The positioning and clamping of 3 points, the auxiliary positioning and clamping of 9 points are realized, the stability and the tensioning are firm, the machining efficiency is improved efficiently and quickly, the deformation caused by the clamping of the thin-wall part is reduced, the machining speed is improved, the machining precision of the product is improved by the tensioning and positioning, and the product is machined stably.

The protection scope of the present invention includes but is not limited to the above embodiments, the protection scope of the present invention is subject to the claims, and any replacement, deformation, and improvement that can be easily conceived by those skilled in the art made by the present technology all fall into the protection scope of the present invention.

Claims

1. The thin-wall part processing clamp device is characterized by comprising a positioning sleeve (1) and a positioning seat (2) positioned in the positioning sleeve (1), wherein a plurality of transverse notches and vertical notches are uniformly arranged on the positioning seat (2) in a circumferential manner, a first containing cavity is arranged at the center of the positioning seat, a first push block (5) is arranged in the containing cavity, a plurality of long blocks (41) are circumferentially distributed on the first push block (5), the plurality of long blocks (41) are embedded into the transverse notches of the positioning seat (2), a second containing cavity is arranged at the center of the first push block (5), a second push block (3) is arranged in the second containing cavity, a plurality of short blocks (31) are circumferentially distributed on the second push block (3), the short blocks (31) are embedded into other transverse notches, and the long blocks (41) are matched with positioning spring pieces (4), the positioning spring piece (4) is arranged in the vertical notch, the short block (31) is matched with the auxiliary positioning spring piece (7), the auxiliary positioning spring piece (7) is arranged in the residual vertical notch, the short block (31) and the auxiliary positioning spring piece (7) are matched with an inclined plane through an inclined plane, the long block (41) and the positioning spring piece (4) are matched with an inclined plane through an inclined plane, the positioning spring piece (4) and the auxiliary positioning spring piece (7) are arranged on the positioning spring piece (4) and the auxiliary positioning spring piece (7) respectively, a plurality of triangular clamping blocks (71) and trapezoidal positioning blocks (72) are arranged below the second push block (3), when the plurality of long blocks (41) of the first push block (5) descend, the positioning spring piece (4) is driven to downwards and expand outwards to be opened and is contacted with the inner side of the thin-wall piece (13), the short blocks (31) of the second push block (3) continue to move downwards to drive the auxiliary positioning spring piece (7) to move downwards and expand outwards, and at the moment, the auxiliary positioning spring piece (7) can enter the inner measuring hole of the thin-wall piece (13) to clamp the thin-wall piece (13) firmly.

2. A thin-walled workpiece processing clamp device as claimed in claim 1, wherein the triangular clamping blocks (71) are located on two sides of the outer portions of the positioning spring pieces (4) and the auxiliary positioning spring pieces (7), and the trapezoidal positioning blocks (72) are located on the inner sides of the triangular clamping blocks (71).

3. A thin-walled workpiece processing clamp device as claimed in claim 2, wherein the number of the trapezoidal positioning blocks (72) is two and two are respectively arranged on one side of the triangular clamping block (71).

4. The thin-walled workpiece machining clamp device according to claim 1, characterized in that a first clamp body (11) and a second clamp body (10) are further arranged above the positioning sleeve (1), a flange (9) is arranged at the upper end of the second clamp body (10), and a tensioning screw (8) penetrates through the first clamp body (11), the second clamp body (10) and the flange (9).

5. A thin-walled workpiece machining clamp device according to claim 4, characterized in that the front end of the tensioning screw rod (8) is connected with a gasket (12), and the gasket (12) is positioned in the first push block (5).

6. A thin-walled workpiece processing clamp device according to claim 2, characterized in that the difference in height between the tooth tips of the triangular clamping blocks (71) on the positioning spring strips (4) and the auxiliary positioning spring strips (7) is 0.03mm-0.05 mm.

7. A thin wall workpiece processing clamp device as claimed in claim 1, wherein the number of the long blocks (41) is three, and the number of the short blocks (31) is nine.