CN211490532U

CN211490532U - Clamp

Info

Publication number: CN211490532U
Application number: CN201922361789.4U
Authority: CN
Inventors: 徐宁炬
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-09-15
Anticipated expiration: 2029-12-25

Abstract

The embodiment of the utility model provides an anchor clamps belongs to work piece centre gripping technical field, anchor clamps include: a base; the push rod, the push rod is worn to establish the base, can for base straight line concertina movement, just have on the push rod: the push rod action surface is positioned on the side surface of the push rod and is an inclined surface; the clamping block seat is sleeved outside the push rod and is connected with the base; the side surface of the block seat is provided with a plurality of through grooves; and the fixture block is provided with a plurality of, just the fixture block with lead to the groove one-to-one, wear to establish lead to the inslot, just have on the fixture block: the first action surface is an inclined surface and corresponds to the action surface of the push rod; the push rod action surface is in contact with the first action surface, and the clamping block moves outwards relative to the through groove through the push rod. The technical effect that the holes processed on the two sides of the workpiece are concentric is achieved.

Description

Clamp

Technical Field

The utility model relates to a work piece centre gripping technical field especially relates to an anchor clamps.

Background

At present, when a long through hole is machined, two ends of the long through hole are respectively machined into one part, and the two parts are communicated with each other to achieve the purpose of machining the long through hole. The existing fixture is a deformable cylinder, and the cylinder is deformed and expanded outwards by entering the cylinder through an action shaft so as to fill and fix the cylinder in a hole machined in a workpiece first and achieve the purpose of fixing the workpiece.

Above-mentioned traditional anchor clamps lead to the work piece in the course of working, and two parts central line non-colinear appears easily, leads to two parts holes that successively process to be off-center, has size deviation, leads to the work piece to process unqualified, leads to the processing defective percentage to be on the high side.

Therefore, the technical problems of the prior art are as follows: the holes processed at the two ends of the workpiece are not concentric.

Disclosure of Invention

The embodiment of the application provides a clamp, which solves the technical problem that holes machined at two ends of a workpiece are not concentric in the prior art; the technical effect that the holes processed on the two sides of the workpiece are concentric is achieved.

The embodiment of the application provides a clamp, clamp includes: a base; the push rod, the push rod is worn to establish the base, can for base straight line concertina movement, just have on the push rod: the push rod action surface is positioned on the side surface of the push rod and is an inclined surface; the clamping block seat is sleeved outside the push rod and is connected with the base; the side surface of the block seat is provided with a plurality of through grooves; and the fixture block is provided with a plurality of, just the fixture block with lead to the groove one-to-one, wear to establish lead to the inslot, just have on the fixture block: the first action surface is an inclined surface and corresponds to the action surface of the push rod; the push rod action surface is in contact with the first action surface, and the clamping block moves outwards relative to the through groove through the push rod.

Preferably, the jig further comprises: the connecting seat is arranged at the lower end of the base and is connected with the base for being connected with other components.

Preferably, the jig further comprises: the guide piece is positioned above the clamping block seat, and the guide piece is used for accommodating the push rod and enabling the push rod to move linearly through the guide piece.

Preferably, the lower part of the guide member is engaged with the block seat.

Preferably, the jig further comprises: the end cover is arranged on the guide piece and corresponds to the top of the push rod; the end cover, the guide piece and the clamping block seat are matched to cover the push rod.

Preferably, the jig further comprises: the pushing seat is positioned in the clamping block seat and sleeved and fixed on the push rod; the push seat is provided with: the accommodating groove is used for accommodating the clamping block; the pushing seat acting surface is positioned on the inner wall of the pushing seat and is an inclined surface; the clamping block is provided with a guide groove corresponding to the accommodating groove, and the clamping block is clamped on the push seat through the guide groove; the guide groove is provided with a second action surface corresponding to the action surface of the pushing seat, the action surface of the pushing seat is in contact with the second action surface, and the clamping block moves inwards relative to the through groove through the pushing seat.

Preferably, the first and second operating surfaces are parallel.

Preferably, the push rod is provided with a convex limiting part relative to the push seat, the push seat is provided with a limiting groove relative to the limiting part, and the limiting part is clamped on the limiting groove, so that the push seat rotates along with the push rod.

Preferably, a notch is formed in the middle of the outer side surface of the fixture block.

Preferably, the size of the upper end face of the base is larger than that of the lower end face of the clamping block seat, and the upper end face of the base is provided with a plurality of discharge chutes.

One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:

1. in the embodiment of the application, the clamp is cylindrical and is adjusted to the same axis through the clamp and the machining cutter, so that after a workpiece is sleeved on the clamp by utilizing a hole machined firstly, the clamping blocks uniformly extend outwards according to the axis, and the clamping blocks simultaneously contact and fix the inner wall of the hole of the workpiece, so that the hole to be machined of the workpiece and the hole machined firstly can be positioned on the same central line, and the technical problem that the holes machined at two ends of the workpiece are not concentric in the prior art is solved; the technical effect that the holes processed on the two sides of the workpiece are concentric is achieved.

2. In the embodiment of the application, the guide piece is arranged, so that the telescopic linear motion of the push rod is stable; through setting up the end cover for the push rod is by complete cladding, avoids in the motion trail that has the material bits to get into the push rod in the course of working. The smooth movement of the push rod is ensured.

3. In this application embodiment, after the push rod drives the ejector pad outwards motion, through the direction of motion that changes the push rod, the cooperation pushes away the seat and can drive the fixture block inwards motion, reaches the fixture block and contracts in, removes the state of establishing with the work piece card for the work piece can be convenient take off.

Drawings

FIG. 1 is a schematic structural diagram of a clamp according to an embodiment of the present disclosure;

FIG. 2 is a schematic sectional view of a clamp according to an embodiment of the present disclosure;

FIG. 3 is an exploded view of the state of FIG. 2;

FIG. 4 is a schematic structural view of a de-chuck block holder, a guide member and an end cap according to an embodiment of the present application;

FIG. 5 is a sectional view in the state of FIG. 4;

FIG. 6 is a schematic structural diagram of a push rod in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of a push base in an embodiment of the present application;

fig. 8 is a schematic structural diagram of a fixture block in the embodiment of the present application.

Reference numerals: 1. a connecting seat; 2. a base; 21. a discharge chute; 3. a push rod; 31. a limiting part; 32. a push rod action surface; 4. a pushing seat; 41. a containing groove; 42. the action surface of the push seat; 43. a limiting groove; 44. connecting holes; 5. a block seat; 51. a through groove; 6. a clamping block; 61. a first active surface; 62. a guide groove; 63. a second active surface; 7. a guide member; 8. and (4) end covers.

Detailed Description

The embodiment of the application provides a clamp which is cylindrical by arranging the clamp, and the clamp and a machining tool are adjusted to the same axis, so that after a workpiece is sleeved on the clamp by utilizing a hole machined firstly, clamping blocks 6 uniformly extend outwards according to the axis, and each clamping block 6 simultaneously contacts and fixes the inner wall of the hole of the workpiece, so that the hole to be machined of the workpiece and the hole machined firstly can be positioned on the same central line, and the technical problem that the holes machined at two ends of the workpiece are not concentric in the prior art is solved; the technical effect that the holes processed on the two sides of the workpiece are concentric is achieved.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Example one

A clamp, the clamp comprising: base 2, connecting seat 1, push rod 3, fixture block 6, push away seat 4, guide 7 and end cover 8. The end cover 8, the guide piece 7 and the block seat 5 are matched to cover the push rod 3; the push rod acting surface 32 contacts with the first acting surface 61, and the latch 6 is moved outwards relative to the through groove 51 by the push rod 3. The pushing seat acting surface 42 contacts with the second acting surface 63, and the fixture block 6 moves inwards relative to the through groove 51 through the pushing seat 4.

A base 2; used for supporting the bottom surface of the workpiece. The size of the upper end face of the base 2 is larger than that of the lower end face of the block seat 5, and a plurality of discharge chutes 21 are formed in the upper end face of the base 2.

The connecting seat 1 is used for connecting with other parts, such as a movable seat on a lathe; the connecting seat 1 is arranged at the lower end of the base 2 and is in screw connection with the base 2.

And the push rod 3 is used for matching with the telescopic cylinder to control the block 6 to be pushed out. The push rod 3 penetrates through the base 2 and can linearly and telescopically move relative to the base 2, and the push rod 3 is provided with: a pusher action surface 32 and a stopper 31.

Particularly, the top of push rod 3 is provided with a counterpoint hole, is convenient for carry out counterpoint calibration with the processing cutter, and whether inspection anchor clamps and processing cutter are located the same axis.

And the push rod acting surface 32 is an inclined surface which is positioned on the side surface of the push rod 3 and is inclined inwards from top to bottom. Preferably, six surfaces are arranged, and the circumference is uniformly arranged.

The limiting part 31 is arranged relative to the push rod 3 in a convex mode and is provided with a corner; the stopper 31 is located below the pusher operating surface 32, and is preferably hexagonal. The limiting part 31 is clamped on the limiting groove 43, so that the pushing seat 4 rotates along with the pushing rod 3

And the clamping block seat 5 is used for limiting the motion track of the clamping block 6, protecting the push rod 3 and preventing chips from entering the motion track of the push rod 3. The block seat 5 is sleeved outside the push rod 3, and the block seat 5 is connected with the base 2; the side surface of the block seat 5 is provided with a plurality of through grooves 51.

And the clamping block 6 is used for clamping the workpiece by matching with the push rod 3 and the push seat 4. The fixture blocks 6 are in one-to-one correspondence with the through grooves 51 and penetrate through the through grooves 51, and notches are formed in the middle of the outer side faces of the fixture blocks 6. And the fixture block 6 is provided with: a first active surface 61, a guide groove 62 and a second active surface 63.

The first acting surface 61 corresponds to the push rod acting surface 32, is the tail end surface of the fixture block 6, and is an inclined surface inclined from top to bottom to inside.

The guide groove 62 is concave, the fixture block 6 is clamped and arranged in cooperation with the accommodating groove 41, the second acting surface 63 is a side surface of the guide groove 62 and is inclined, and preferably, the first acting surface 61 and the second acting surface 63 are parallel.

The pushing seat 4 is used for driving the clamping block 6 to retract inwards. The push seat 4 is positioned in the block seat 5, sleeved and fixed on the push rod 3 and positioned below the push rod action surface 32; the push seat 4 is provided with: a receiving groove 41 and a pusher action surface 42. And the accommodating groove 41 is used for accommodating the fixture block 6. The pushing seat acting surface 42 is located on the inner wall of the pushing seat 4 and is an inclined surface.

The guide piece 7 is positioned above the block seat 5, the guide piece 7 accommodates the push rod 3, and the push rod 3 moves linearly through the guide piece 7. The lower part of the guide piece 7 is clamped in the block seat 5.

And the end cover 8 is arranged on the guide part 7, and corresponds to the top of the push rod 3.

The working principle is as follows:

when the workpiece is fixed, the fixture block 6 is expanded: the push rod 3 moves downwards, the push rod acting surface 32 is contacted with the first acting surface 61, and the clamping block 6 moves outwards relative to the through groove 51 through the push rod 3.

The contact fixation is that the fixture block 6 retracts: the push rod 3 moves upwards, the push seat acting surface 42 is contacted with the second acting surface 63, and the clamping block 6 moves inwards relative to the through groove 51 through the push seat 4.

The technical effects are as follows:

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A clamp, characterized in that it comprises:

a base;

the push rod, the push rod is worn to establish the base, can for base straight line concertina movement, just have on the push rod:

the push rod action surface is positioned on the side surface of the push rod and is an inclined surface;

the clamping block seat is sleeved outside the push rod and is connected with the base; the side surface of the block seat is provided with a plurality of through grooves; and

the fixture block is provided with a plurality of, just the fixture block with lead to the groove one-to-one, wear to establish lead to the inslot, just have on the fixture block:

the first action surface is an inclined surface and corresponds to the action surface of the push rod;

the push rod action surface is in contact with the first action surface, and the clamping block moves outwards relative to the through groove through the push rod.

2. The clamp of claim 1, further comprising:

the connecting seat is arranged at the lower end of the base and is connected with the base for being connected with other components.

3. The clamp of claim 1, further comprising:

the guide piece is positioned above the clamping block seat, and the guide piece is used for accommodating the push rod and enabling the push rod to move linearly through the guide piece.

4. The clamp of claim 3, wherein the lower portion of the guide member is captured within the block seat.

5. The clamp of claim 3, further comprising:

the end cover is arranged on the guide piece and corresponds to the top of the push rod;

the end cover, the guide piece and the clamping block seat are matched to cover the push rod.

6. The clamp of claim 1, further comprising:

the pushing seat is positioned in the clamping block seat and sleeved and fixed on the push rod; the push seat is provided with:

the accommodating groove is used for accommodating the clamping block;

the pushing seat acting surface is positioned on the inner wall of the pushing seat and is an inclined surface;

the clamping block is provided with a guide groove corresponding to the accommodating groove, and the clamping block is clamped on the push seat through the guide groove; the guide groove is provided with a second action surface corresponding to the action surface of the pushing seat, the action surface of the pushing seat is in contact with the second action surface, and the clamping block moves inwards relative to the through groove through the pushing seat.

7. The clamp of claim 6, wherein the first active surface and the second active surface are parallel.

8. The clamp according to claim 1, wherein the push rod is provided with a convex limiting portion relative to the push seat, the push seat is provided with a limiting groove relative to the limiting portion, and the limiting portion is clamped on the limiting groove to enable the push seat to rotate along with the push rod.

9. The clip of claim 1, wherein a notch is formed in a middle portion of the outer side surface of the clip.

10. The fixture of claim 1, wherein the upper end surface of said base is larger in size than the lower end surface of said block seat, and wherein said upper end surface of said base is provided with a plurality of discharge chutes.