CN210024543U

CN210024543U - Tool clamp for machine tool

Info

Publication number: CN210024543U
Application number: CN201920428486.7U
Authority: CN
Inventors: 张群威; 李琼; 承姿辛
Original assignee: Luohe Vocational Technology College
Current assignee: Luohe Vocational Technology College
Priority date: 2019-04-01
Filing date: 2019-04-01
Publication date: 2020-02-07
Anticipated expiration: 2029-04-01

Abstract

The utility model relates to the technical field of machining, specifically be a frock clamp for lathe, comprises a workbench, be equipped with the roof directly over the workstation, the top central authorities of workstation are equipped with the centre gripping groove, and be equipped with slip splint between workstation and the last roof, go up through four stand fixed connection between roof and the workstation, and run through on the roof and be equipped with the propulsion screw rod, threaded connection between propulsion screw rod and the slip splint, and the bottom that impels the screw rod is connected with slip splint's top bearing, the inside left and right sides in centre gripping groove all is equipped with the removal chuck, the outside both sides in centre gripping groove all are equipped with the cylinder, beneficial effect is: the inside in centre gripping groove is provided with two removal chucks in the utility model, and sliding clamping plate's bottom is provided with a fixed chuck, and the bottom central authorities of fixed chuck have seted up the fixed slot, under three's combined action, not only can press from both sides the very big work piece of volume tightly, is applicable to various special-shaped workpiece moreover.

Description

Tool clamp for machine tool

Technical Field

The utility model relates to a machining technology field specifically is a frock clamp for lathe.

Background

In the machine manufacturing industry, a machine tool is a common apparatus for machining a workpiece, and a three-jaw chuck is generally used as a clamp for clamping the workpiece on the machine tool. The three-jaw chuck has the advantages of rapidly clamping a workpiece and driving the workpiece to rotate, but has the obvious defect that the three-jaw chuck cannot clamp large-size workpieces and special-shaped workpieces. In practical use, a large-volume irregular workpiece needs to be machined, which brings certain trouble to operators. Simultaneously, if adopt some current bulky anchor clamps to come the centre gripping work piece, will meet another each problem, current anchor clamps chuck all adopts metal material to make promptly, and the centre gripping dynamics is very big, and operating personnel is in order to press from both sides tight work piece, often easy too big dynamics and lead to the work piece to be pressed from both sides and hinder, has influenced the outward appearance of work piece, for this reason, the utility model provides a frock clamp for lathe is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a frock clamp for lathe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a tool clamp for a machine tool comprises a workbench, wherein an upper top plate is arranged right above the workbench, a clamping groove is formed in the center of the top end of the workbench, a sliding clamp plate is arranged between the workbench and the upper top plate, the upper top plate is fixedly connected with the workbench through four stand columns, a propelling screw rod penetrates through the upper top plate, the propelling screw rod is in threaded connection with the sliding clamp plate, the bottom end of the propelling screw rod is connected with a top end bearing of the sliding clamp plate, moving chucks are arranged on the left side and the right side of the inside of the clamping groove, air cylinders are arranged on the two sides of the outside of the clamping groove, the air cylinders are fixedly arranged on the outer side wall of the clamping groove, piston rods of the air cylinders penetrate through the clamping groove and are fixedly connected with the outer side of the moving chucks, four corners of the sliding clamp plate are penetrated through the stand columns, a mounting groove is formed in the center of the, the thickness of fixed chuck is greater than the inside degree of depth of mounting groove, and passes through bolt fixed connection between fixed chuck and the slip splint, and the fixed slot has been seted up to the bottom of fixed chuck, the fixed slot is the style of calligraphy of falling V form, and the inside laminating of fixed slot is equipped with the rubber cushion.

Preferably, first chutes are formed in two sides of the bottom end of the inner portion of the clamping groove, the two first chutes are parallel to each other, first sliding blocks are arranged on two sides of the bottom end of the movable chuck, and the two first sliding blocks are embedded into the first chutes.

Preferably, the inner end of the movable chuck is provided with an inclined edge, the inner end of the movable chuck is provided with a sliding cavity along the inclined edge, the sliding cavity is embedded into the sliding block, the bottom end of the sliding cavity is provided with an elastic bulge, the thickness of the sliding block is larger than the depth of the sliding cavity, and the inner end of the sliding block is tightly attached to the upper surface of the elastic bulge.

Preferably, the inside both sides of slip cavity all are equipped with the second slider, the second spout has all been seted up to the both sides of slider, just the second slider all imbeds in the second spout in the slider outside.

Preferably, the outer end of sliding block all exposes in the outside of slip cavity, and the tooth's socket has evenly been seted up to the outer end of sliding block.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, two movable chucks are arranged in the clamping groove, a fixed chuck is arranged at the bottom end of the sliding clamp plate, and a fixed groove is arranged at the center of the bottom end of the fixed chuck, so that a workpiece with a large volume can be clamped under the combined action of the three chucks, and the clamping groove is suitable for various special-shaped workpieces;

2. the inboard laminating of fixed chuck bottom fixed slot has the rubber pad in the utility model, removes to follow on the inner of chuck and is provided with the sliding block, and is provided with elasticity swell structure between sliding block and the slip cavity, and when fixed slot, sliding block and work piece contact, elasticity swell and rubber pad all play certain yielding effect, avoid the work piece to be hindered by the clamp.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure at the position A of the present invention;

fig. 3 is a schematic view of the structure of the clamping groove of the present invention.

In the figure: the device comprises a workbench 1, an upper top plate 2, a clamping groove 3, a sliding clamping plate 4, a pushing screw rod 5, a movable clamping head 6, a cylinder 7, a first sliding groove 8, a first sliding block 9, a fixed clamping head 10, a fixed groove 11, a sliding cavity 12, a sliding block 13, a second sliding block 14 and an elastic bulge 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a tooling clamp for a machine tool comprises a workbench 1, an upper top plate 2 is arranged right above the workbench 1, a clamping groove 3 is arranged in the center of the top end of the workbench 1, a sliding clamp plate 4 is arranged between the workbench 1 and the upper top plate 2, the upper top plate 2 is fixedly connected with the workbench 1 through four stand columns, a pushing screw 5 penetrates through the upper top plate 2, the pushing screw 5 is in threaded connection with the sliding clamp plate 4, the bottom end of the pushing screw 5 is connected with a top end bearing of the sliding clamp plate 4, namely, an operator can push the sliding clamp plate 4 to move by rotating the pushing screw 5, the length of the pushing screw 5 is equal to the distance between the clamping groove 3 and the upper top plate 2, and the specific position is shown in figure 1;

the left side and the right side of the inside of a clamping groove 3 are both provided with a movable chuck 6, the two sides of the outside of the clamping groove 3 are both provided with a cylinder 7, the cylinders 7 are both fixedly arranged on the outer side wall of the clamping groove 3, piston rods of the cylinders 7 all penetrate through the clamping groove 3 and are fixedly connected with the outer side of the movable chuck 6, four corners of a sliding clamp plate 4 are all penetrated through by a stand column, the center of the bottom end of the sliding clamp plate 4 is provided with a mounting groove, a fixed chuck 10 is embedded in the mounting groove and is provided with a fixed chuck 10, the thickness of the fixed chuck 10 is larger than the inner depth of the mounting groove, the fixed chuck 10 is fixedly connected with the sliding clamp plate 4 through a bolt, the bottom end of the fixed chuck 10 is provided with a fixed groove 11, the fixed groove 11 is inverted V-shaped, the inside of the fixed groove 11 is, namely, the bottom end of the fixed chuck 10 is positioned outside the mounting groove;

two sides of the bottom end inside the clamping groove 3 are provided with first sliding grooves 8, the two first sliding grooves 8 are parallel to each other, two sides of the bottom end of the movable chuck 6 are provided with first sliding blocks 9, and the two first sliding blocks 9 are embedded in the first sliding grooves 8, namely, the first sliding blocks 9 at the bottom end of the movable chuck 6 are always embedded in the first sliding grooves on the inner side of the clamping groove 3 in the moving process of the movable chuck 6, so that the stability of the movable chuck 6 in moving is ensured;

the inner end of the movable chuck 6 is obliquely arranged, the inner end of the movable chuck 6 is provided with a sliding cavity 12 along the inner end, a sliding block 13 is embedded into the sliding cavity 12, the bottom end of the inner part of the sliding cavity 12 is provided with an elastic bulge 15, the thickness of the sliding block 13 is larger than the depth of the sliding cavity 12, the inner end of the sliding block 13 is tightly attached to the upper surface of the elastic bulge 15, the position of the sliding block 13 relative to the movable chuck 6 is shown in figure 1 and is located on the inner end of the movable chuck 6, in the process of clamping a workpiece, the sliding block 13 is in pre-contact with the workpiece, the elastic bulge 15 is made of an elastic material and has a certain buffering effect, and the bottom end of the elastic bulge is fixed to the inner end of the sliding cavity 12 through glue.

The two sides inside the sliding cavity 12 are both provided with second sliding blocks 14, the two sides of the sliding block 13 are both provided with second sliding grooves, the second sliding blocks 14 are embedded in the second sliding grooves on the outer side of the sliding block 13, the second sliding blocks 14 and the sliding cavity 12 are in an integrated structure, and the second sliding blocks 14 are embedded in the second sliding grooves on the outer side of the sliding block 13, namely the sliding block 13 can slide along the second sliding blocks 14 during movement, so that the movement stability of the sliding block 13 is ensured;

the outer end of the sliding block 13 is exposed outside the sliding cavity 12, the outer end of the sliding block 13 is uniformly provided with tooth grooves, the friction coefficient of the outer end of the sliding block 13 can be increased due to the tooth grooves, a workpiece can be clamped conveniently, and the shape of the tooth grooves is shown in fig. 2.

The working principle is as follows: the utility model discloses during the use, according to the bulk size of work piece, suitably adjust the inside two intervals of removing between the chuck 6 of centre gripping groove 3, then put into centre gripping groove 3 inside with work piece one end to start two cylinders 7, promote to remove chuck 6 and remove, press from both sides the bottom of tight work piece. Then the pushing screw rod 5 is rotated manually, the sliding clamping plate 4 is pushed to be pressed downwards, the fixed groove 11 is contacted with the workpiece, and finally the workpiece position is locked under the action of the two movable chucks 6 and the fixed chuck 10. In the moving process of the movable chuck 6, the first slide block 9 at the bottom end of the movable chuck is always embedded in the first sliding groove 8 at the bottom end in the clamping groove 3, so that the moving stability of the movable chuck 6 can be kept. In the process of moving the sliding clamping plate 4, the four corners of the sliding clamping plate are penetrated by the upright posts, so that the moving stability of the sliding clamping plate 4 can be kept. Meanwhile, a sliding block 13 is embedded in the upper edge of the inner end of the movable chuck 6, an elastic bulge 15 is arranged at the inner end of the sliding block 13, and when the sliding block 13 is in contact with a workpiece, the elastic bulge 15 is squeezed to be flat, so that a certain buffering effect is achieved, and the workpiece is prevented from being damaged by clamping. The inside of fixed slot 11 is laminated with the rubber pad, and its effect all plays the effect of protection work piece with elasticity swell 15.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a frock clamp for lathe, includes workstation (1), its characterized in that: an upper top plate (2) is arranged right above the workbench (1), a clamping groove (3) is arranged at the center of the top end of the workbench (1), a sliding clamping plate (4) is arranged between the workbench (1) and the upper top plate (2), the upper top plate (2) is fixedly connected with the workbench (1) through four stand columns, a propelling screw (5) penetrates through the upper top plate (2), the propelling screw (5) is in threaded connection with the sliding clamping plate (4), the bottom end of the propelling screw (5) is connected with a top end bearing of the sliding clamping plate (4), movable chucks (6) are arranged on the left side and the right side of the inner part of the clamping groove (3), air cylinders (7) are arranged on the two sides of the outer part of the clamping groove (3), the air cylinders (7) are fixedly arranged on the outer side wall of the clamping groove (3), piston rods of the air cylinders (7) penetrate through the clamping groove (3) and are fixedly connected with the outer side of the movable chucks (6), sliding splint (4) four corners is all run through by the stand, and sliding splint's (4) bottom central authorities have seted up the mounting groove, the inside embedded fixed chuck (10) that is equipped with of mounting groove, the thickness of fixed chuck (10) is greater than the inside degree of depth of mounting groove, and passes through bolt fixed connection between fixed chuck (10) and sliding splint (4), and fixed slot (11) have been seted up to the bottom of fixed chuck (10), fixed slot (11) are the style of calligraphy of falling V form, and the inside laminating of fixed slot (11) is equipped with the rubber pad.

2. A tooling clamp for a machine tool according to claim 1 wherein: first spout (8) have been seted up to the inside bottom both sides in centre gripping groove (3), and are parallel to each other between two first spout (8), the bottom both sides of removing chuck (6) all are equipped with first slider (9), and just two first slider (9) all imbed in first spout (8).

3. A tooling clamp for a machine tool according to claim 1 wherein: the inner of removal chuck (6) is gone up along all inclining the setting, and moves the inner of chuck (6) and go up along all having seted up slip cavity (12), the inside embedding of slip cavity (12) is equipped with sliding block (13), and the inside bottom of slip cavity (12) all is equipped with elasticity swell (15), the thickness of sliding block (13) all is greater than slip cavity (12) degree of depth, and the inner of sliding block (13) all closely laminates with the upper surface of elasticity swell (15).

4. A tooling clamp for a machine tool according to claim 3 wherein: the inside both sides of slip cavity (12) all are equipped with second slider (14), the second spout has all been seted up to the both sides of slider (13), just second slider (14) all imbed in the second spout in the slider (13) outside.

5. A tooling clamp for a machine tool according to claim 3 wherein: the outer end of sliding block (13) all exposes in the outside of slip cavity (12), and the tooth's socket has evenly been seted up to the outer end of sliding block (13).