CN210361366U - Clamping mechanism and clamp capable of automatically compensating position errors - Google Patents

Abstract

The utility model belongs to the centre gripping equipment field especially relates to an automatic compensation position error's fixture and anchor clamps. The clamp comprises an installation seat and a clamp seat, wherein a clamp head and a guide pillar penetrating through the installation seat are installed on the clamp seat, an elastic piece driving the clamp head to reset is sleeved on the guide pillar, two ends of the elastic piece respectively support against the clamp seat and the installation seat, and the guide pillar slides along the installation seat to drive the clamp head to move and adjust the position. The utility model has the advantages that: the clamping mechanism can automatically contract when being blocked so that the chuck can be in place, the adaptability is strong, and the workpiece taking is more stable.

Description

Clamping mechanism and clamp capable of automatically compensating position errors

Technical Field

The utility model belongs to the centre gripping equipment field especially relates to an automatic compensation position error's fixture and anchor clamps.

Background

Because the structure of front bumper is comparatively special for there is 1 ~ 50 mm's error in the injection molding machine die sinking position of production front bumper, what install at present is that getting of ordinary chuck anchor clamps, when the manipulator got the piece, unable automatic compensation injection molding machine die sinking position error can not stably get the piece, can't realize full automatic production, can only get the piece through the manual work and satisfy the production needs, cause harmful effects to product quality and production efficiency.

SUMMERY OF THE UTILITY MODEL

In view of the above prior art's shortcoming, the utility model discloses an aim at providing an automatic compensation position error's fixture and anchor clamps for can't adapt to injection molding machine die sinking position error, get a poor stability scheduling problem when solving among the prior art work piece and getting.

In order to achieve the above objects and other related objects, the utility model provides an automatic compensation position error's fixture, including mount pad and chuck seat, install the chuck on the chuck seat and pass the guide pillar of mount pad, the cover is equipped with the elastic component that drives the chuck and reset on the guide pillar, and the both ends of elastic component withstand chuck seat and mount pad respectively, the guide pillar slides along the mount pad and drives the chuck and remove the adjustment position.

The utility model has the advantages that: the clamping mechanism can automatically contract when being blocked so that the chuck can be in place, the adaptability is strong, and the workpiece taking is more stable.

Optionally, the chuck includes a clamping portion capable of being opened and closed, and the chuck base is provided with a limit stop for limiting the depth of the workpiece entering the clamping portion.

Optionally, the top of the limit stop is lower than the top of the clamping portion, and the top of the limit stop is higher than the bottom of the clamping portion.

Optionally, a gas pipe joint is arranged on the chuck.

Optionally, the guide pillar is of a cylindrical structure, a sliding groove is formed in the guide pillar along the axial direction of the guide pillar, a rotation stopping piece is arranged on the mounting seat, and the rotation stopping piece extends into the sliding groove to limit the guide pillar to rotate.

Optionally, a supporting block for connecting with a clamp is arranged on the side wall of the mounting seat, and a first strip-shaped groove is formed in the supporting block.

Optionally, the collet and the guide post are arranged in parallel, and the collet and the guide post are respectively located on two opposite sides of the collet seat.

The beneficial effect of adopting the above optional scheme is: simple structure, connection are stable for fixture can be stable accurate clamp and get the work piece.

A clamp comprises the clamping mechanism, a frame and a mechanical arm, wherein the frame is connected with the mechanical arm through a bottom plate, and the clamping mechanism is installed on the frame.

Optionally, the frame is a square frame, the number of the clamping mechanisms is two, and the two clamping mechanisms are located on two opposite sides of the frame.

Optionally, the four corners of the frame are provided with suction cups.

The fixture has the beneficial effects that: simple structure, operation are nimble, and the work piece clamp is got accurate stability, further improves the stability that the work piece clamp was got through setting up the sucking disc, avoids the work piece not hard up to drop.

Drawings

FIG. 1 is a front view of the clamping mechanism for automatically compensating position errors according to the present invention in a compressed state;

FIG. 2 is a side view of the clamping mechanism of the present invention in a compressed state to automatically compensate for position errors;

fig. 3 is a top view of the clamping mechanism for automatically compensating position error according to the present invention in a compressed state;

fig. 4 is a front view of the clamping mechanism for automatically compensating position errors according to the present invention;

fig. 5 is a schematic structural view of the clamp of the present invention;

fig. 6 is a schematic view of the operation of the clamp of the present invention.

Description of reference numerals

1, a clamping mechanism;

11 a mounting seat;

12 a chuck base;

13 a chuck;

131 air pipe joints;

132 a clamping portion;

14 limit stops;

15 guide pillars;

151 chute;

16 an elastic member;

17 a rotation stopping member;

18 a support block;

181 a first elongated slot;

2, a frame;

21 a second strip groove;

3, a mechanical arm;

4, fixing the mold;

5, moving a mold;

6, workpiece;

7 a bottom plate.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description, and are not intended to limit the scope of the invention, but rather the scope of the invention.

As shown in fig. 1 to 4, the clamping mechanism for automatically compensating position error of the present invention includes a mounting seat 11 and a clamping seat 12, wherein the clamping seat 12 is provided with a clamping head 13 and a guide post 15 passing through the mounting seat 11, and the mounting seat 11 is provided with a through hole for the guide post 15 to pass through. The guide post 15 can be a cylindrical structure, and the through hole is matched with the shape of the guide post 15, so that the sliding is flexible. Guide pillar 15 is equipped with spout 151 along its axial, is equipped with on mount pad 11 and splines a 17, splines a 17 and passes the lateral wall of mount pad 11 and stretch into in spout 151 restriction guide pillar 15 and rotate, splines a 17 and can adopt the pin, can set up two in this embodiment and spline the piece for the structure is more stable, and the guide pillar removes the in-process and is difficult for rocking. The chuck 13 and the guide post 15 are arranged in parallel, the chuck 13 and the guide post 15 are respectively arranged on two opposite sides of the chuck base 12, and the chuck 13 and the guide post 15 are respectively arranged on two opposite sides of the chuck base 12 in a protruding mode, so that the chuck is convenient to stretch and retract, interference in the stretching process is avoided, and the structure is locally compact and reasonable. The guide post 15 is sleeved with an elastic part 16 for driving the chuck 13 to reset, the elastic part 16 can be a spring, two ends of the elastic part 16 respectively support against the chuck seat 12 and the mounting seat 11, the guide post 15 slides along the mounting seat 11 to drive the chuck 13 to move and adjust the position, so that the chuck 13 can adjust the position in a self-adaptive manner, the chuck 13 compresses the elastic part 16 in the contraction process, and power is provided for the chuck 13 to extend and reset through the elastic part 16. The side wall of the mounting seat 11 is provided with a supporting block 18 used for being connected with a clamp, and the supporting block 18 is provided with a first strip-shaped groove 181, so that the mounting positions of the mounting seat 11 and the clamp can be flexibly adjusted.

As shown in fig. 1 to 4, the chuck 13 includes a clamp portion 132 that can be opened and closed, and the chuck base 12 is provided with a limit stopper 14 that limits the depth of the workpiece 6 entering the clamp portion 132. The limit stop 14 is arranged in parallel with the clamping part 132, the top of the limit stop 14 is lower than that of the clamping part 132, and the top of the limit stop 14 is higher than that of the clamping part 132. The chuck 13 can adopt the mouth of a river chuck of pneumatic type, is equipped with air pipe connector 131 on the chuck 13, is connected with outside cylinder through air pipe connector 131, realizes the quick switching of chuck 13, and it is convenient to connect, and the switching is nimble.

As shown in fig. 5 and 6, the clamp of the present invention, including the clamping mechanism 1 as described above, the number of the clamping mechanisms 1 can be set according to the clamping position and the shape of the workpiece 6. The clamp further comprises a frame 2 and a mechanical arm 3, wherein the clamping mechanism 1 is installed on the frame 2, and the frame 2 is connected with the mechanical arm 3 through a bottom plate 7. The frame 2 may be a square frame, the number of the clamping mechanisms 1 in this embodiment is two, and the two clamping mechanisms 1 are located on two opposite sides of the frame 2, so that the clamping mechanisms 1 can keep balance and stability when clamping the workpiece. Be equipped with second bar groove 21 on the frame 2, the supporting shoe 18 passes through the bolt and is connected the locking with second bar groove 21 on the frame 2, and first bar groove 181 on the supporting shoe 18 sets up with second bar groove 21 on the frame 2 is perpendicular to realize the removal adjustment in four positions around the chuck, the installation is adjusted conveniently, is convenient for adapt to the clamp of multiple work piece and gets. Four apex angle departments of frame 2 all are equipped with the sucking disc (not shown in the picture), further improve the stability when anchor clamps press from both sides the work piece through setting up the sucking disc, avoid the work piece to drop.

The working process is as follows: after the injection molding machine die sinking, external equipment drives arm 3 and gets into between cover half 4 and the movable mould 5, then arm 3 drives anchor clamps and removes and be close to movable mould 5, arm 3 removes according to the stroke of predetermineeing, after the die sinking, when the actual distance between cover half and the movable mould is less than predetermineeing the stroke, fixture can withstand the movable mould at the in-process that is close to the movable mould, fixture receives the pressure contraction, and fixture's shrink distance carries out self-adaptation adjustment according to the difference of predetermineeing stroke and actual distance, make fixture can accurately press from both sides all the time and get work piece 6, press from both sides and get the completion back, the arm drives fixture and removes and keeps away from the movable mould, fixture resets gradually, and withdraw from the injection molding machine.

Make anchor clamps can self-adaptation adjustment position when pressing from both sides the work piece through simple structure to adapt to the injection molding machine of different die sinking errors, and avoid fixture to damage anchor clamps or can't accurately press from both sides the work piece because of strikeing with the injection molding machine, make the arm can be accurate stable press from both sides and get the work piece, reduce the cost, realize automated production, reduce intensity of labour, improve production efficiency, guaranteed product quality.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. The utility model provides an automatic compensation position error's fixture which characterized in that: the clamp comprises an installation seat and a clamp seat, wherein a clamp head and a guide pillar penetrating through the installation seat are installed on the clamp seat, an elastic piece driving the clamp head to reset is sleeved on the guide pillar, two ends of the elastic piece respectively support against the clamp seat and the installation seat, and the guide pillar slides along the installation seat to drive the clamp head to move and adjust the position.

2. The clamping mechanism for automatically compensating position error according to claim 1, wherein: the chuck comprises a clamping part capable of being opened and closed, and a limit stop block for limiting the depth of the workpiece entering the clamping part is arranged on the chuck seat.

3. The clamping mechanism for automatically compensating position error according to claim 2, wherein: the top of the limit stop is lower than the top of the clamping part, and the top of the limit stop is higher than the bottom of the clamping part.

4. The clamping mechanism for automatically compensating position error according to claim 1, wherein: and the chuck is provided with a gas pipe joint.

5. The clamping mechanism for automatically compensating position error according to claim 1, wherein: the guide pillar is of a cylindrical structure, a sliding groove is formed in the guide pillar along the axial direction of the guide pillar, a rotation stopping piece is arranged on the mounting seat, and the rotation stopping piece stretches into the sliding groove to limit the guide pillar to rotate.

6. The clamping mechanism for automatically compensating position error according to claim 1, wherein: the side wall of the mounting seat is provided with a supporting block used for being connected with a clamp, and the supporting block is provided with a first strip-shaped groove.

7. The clamping mechanism for automatically compensating position error according to claim 1, wherein: the chuck and the guide pillar are arranged in parallel, and the chuck and the guide pillar are respectively positioned on two opposite sides of the chuck seat.

8. A clamp comprising a clamping mechanism as claimed in any one of claims 1 to 7, wherein: the clamping mechanism is characterized by further comprising a frame and a mechanical arm, wherein the frame is connected with the mechanical arm through a bottom plate, and the clamping mechanism is installed on the frame.

9. The clamp of claim 8, wherein: the frame is square frame, fixture's quantity is two, and two fixture are located the relative both sides of frame.

10. The clamp of claim 9, wherein: and the four top corners of the frame are provided with suckers.

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