CN211219783U

CN211219783U - Pneumatic clamp with high safety performance for numerical control milling machine

Info

Publication number: CN211219783U
Application number: CN201922026820.9U
Authority: CN
Inventors: 张永丽; 杨菊
Original assignee: 张永丽
Current assignee: Jingdezhen Hangsheng Aviation Machinery Co.,Ltd.
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-08-11
Anticipated expiration: 2029-11-22

Abstract

The utility model belongs to the technical field of milling machine fixture, the utility model discloses a pneumatic fixture with high safety performance for numerically controlled fraise machine, including the locating plate and install the main clamping part at the locating plate up end, main clamping part is including driving actuating cylinder and movable clamp splice, driving actuating cylinder installs the up end at the locating plate, the locating plate up end is seted up with movable clamp splice complex main groove, two vice support components are installed to the locating plate up end; the screw rod slides along the axial direction of the rotating sleeve synchronously, the auxiliary plate clamps two sides of an object, then the movable clamping block is pushed to be attached to the object through the main clamping component, four-point fixation is completed, and before the main clamping component is opened through the method, the hand of an operator is located at a position far away from the workpiece, so that the cylinder clamp is prevented from damaging the operator. And the four-point fixation makes the installation clamping more stable, and prevents the clamping from collapsing.

Description

Pneumatic clamp with high safety performance for numerical control milling machine

Technical Field

The utility model belongs to the technical field of milling machine fixture, specifically a pneumatic fixture that security performance is high for numerically controlled fraise machine.

Background

In modern production, a machine tool clamp is an indispensable technological device, which directly affects machining precision, labor productivity, manufacturing cost of products and the like, so the machine tool clamp plays an extremely important role in enterprise production. However, in the prior art, on a numerically controlled milling machine or a machining center, the clamping object of the clamp is single, the clamping block cannot be replaced, a square part is clamped by using flat tongs, or a rotary part is clamped by using a three-jaw chuck, the alignment time is long, the clamping block is not replaced, the production efficiency is low, and the requirement of modern production is difficult to meet.

Chinese patent discloses a numerically controlled fraise machine air jig, and this patent technique can change the different clamping mechanism of kind and be in the fixed body with on the face that the activity body is relative to can the centre gripping different grade type treat the clamping piece simultaneously, provide work efficiency effectively, but, this patent adopts traditional two point bearing structure, and two point support needs great pressure, just can make the article centre gripping stable, when the centre gripping some slender articles, in case apply great effort, can make the object warp or the unstable condition that leads to the article to collapse of centre gripping, when collapsing, probably causes the injury to the personnel. Therefore, the technical personnel in the field provide a pneumatic clamp with high safety performance for the numerical control milling machine, so as to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic fixture that security performance is high for numerically controlled fraise machine 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 pneumatic clamp with high safety performance for a numerical control milling machine comprises a positioning plate and a main clamping part arranged on the upper end surface of the positioning plate, wherein the main clamping part comprises a driving cylinder and a movable clamping block, the driving cylinder is arranged on the upper end surface of the positioning plate, a main groove matched with the movable clamping block is formed in the upper end surface of the positioning plate, one end of the positioning plate is fixedly connected with a fixed clamping block matched with the movable clamping block, two auxiliary supporting parts are arranged on the upper end surface of the positioning plate, two auxiliary grooves which are symmetrically distributed and matched with the auxiliary supporting parts are formed in one side of the positioning plate, the auxiliary grooves are positioned on two sides of the fixed clamping block, supporting blocks are arranged in the auxiliary supporting parts, rotating sleeves are connected in the supporting blocks in a rotating mode, screw rods are screwed in the rotating sleeves, and the output ends of the screw rods are fixedly connected with auxiliary plates which are connected on, vice supporting part keeps away from locating plate one side all is equipped with the control box, the locating plate both sides seted up with control box complex intercommunication groove, it keeps away from to rotate the sleeve pipe locating plate one end rotate to be connected inside the control box, it has drive gear to rotate sleeve pipe one end fixedly connected with, sliding connection has the connecting rod in the intercommunication groove, two connecting rod outer wall fixedly connected with drive gear meshed's drive gear, drive gear rotates to be connected the inside of control box, connecting rod one end fixedly connected with carousel, the carousel rotates to be connected the outside of control box.

As a further aspect of the present invention: the bottom surfaces of two sides of the supporting block are fixedly connected with mounting plates, and the mounting plates are detachably connected with the auxiliary grooves through screws.

As a further aspect of the present invention: the supporting shoe side has seted up and has rotated the chamber, it is equipped with the bearing to rotate intracavity wall both ends, rotate the sleeve pipe with it rotates the chamber and passes through the bearing rotates and is connected.

As a further aspect of the present invention: the bottom surface of the movable clamping block is fixedly connected with a main sliding block matched with the main groove.

As a further aspect of the present invention: the outer wall of the main sliding block is rotatably connected with a plurality of balls which are uniformly distributed.

As a further aspect of the present invention: the shape of subplate is the rectangle, the subplate with the laminating of locating plate up end.

As a further aspect of the present invention: one end of the rotating sleeve, which is far away from the screw rod, is of a closed structure.

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

the utility model discloses on main clamping unit's basis, both sides all are provided with vice supporting component, during the installation, with the article with decide the clamp splice contact, the carousel rotates, make the screw rod along rotating sleeve pipe axial synchronous slip, the both sides of subplate centre gripping article, three point fixing is accomplished to the article this moment, then promote through main clamping unit and move the clamp splice and the article laminating, it is fixed to accomplish four points, before making can main clamping unit open through this method, operating personnel's hand is located the position of keeping away from the work piece, prevent that cylinder anchor clamps from causing the injury to operating personnel, and four-point fixed messenger installation centre gripping is more stable, prevent the condition that the centre gripping collapses from appearing.

Drawings

FIG. 1 is a schematic structural diagram of a high-safety pneumatic clamp for a numerically controlled milling machine;

FIG. 2 is a schematic sectional front view of a high-safety pneumatic clamp for a numerically controlled milling machine;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of a portion B in fig. 2.

In the figure: 1. positioning a plate; 11. a main tank; 12. a secondary groove; 13. a communicating groove; 2. a primary clamping member; 21. a driving cylinder; 22. a movable clamping block; 221. a main slider; 222. a ball bearing; 23. fixing the clamping block; 3. a secondary support member; 31. a support block; 311. a rotation chamber; 312. a bearing; 32. mounting a plate; 33. rotating the sleeve; 331. a transmission gear; 34. a screw; 35. a sub-board; 4. a control box; 41. a connecting rod; 42. a drive gear; 43. a turntable.

Detailed Description

Referring to fig. 1-4, in the embodiment of the present invention, a pneumatic clamp with high safety performance for a numerically controlled milling machine includes a positioning plate 1 and a main clamping member 2 mounted on an upper end surface of the positioning plate 1, the main clamping member 2 includes a driving cylinder 21 and a movable clamping block 22, the driving cylinder 21 is mounted on the upper end surface of the positioning plate 1, a main groove 11 matched with the movable clamping block 22 is formed on the upper end surface of the positioning plate 1, a fixed clamping block 23 matched with the movable clamping block 22 is fixedly connected to one end of the positioning plate 1, two auxiliary supporting members 3 are mounted on the upper end surface of the positioning plate 1, two auxiliary grooves 12 symmetrically distributed and matched with the auxiliary supporting members 3 are formed on one side of the positioning plate 1, the auxiliary grooves 12 are located on two sides of the fixed clamping block 23, a supporting block 31 is formed in the auxiliary supporting member 3, a rotating sleeve 33 is rotatably connected in the supporting block 31, a screw 34 is screwed in the rotating sleeve 33, an output end of, a control box 4 is arranged on one side, away from the positioning plate 1, of the auxiliary supporting component 3, communicating grooves 13 matched with the control box 4 are formed in two sides of the positioning plate 1, one end, away from the positioning plate 1, of a rotating sleeve 33 is rotatably connected inside the control box 4, a transmission gear 331 is fixedly connected to one end of the rotating sleeve 33, a connecting rod 41 is slidably connected in the communicating grooves 13, two driving gears 42 meshed with the transmission gear 331 are fixedly connected to the outer wall of the connecting rod 41, the driving gears 42 are rotatably connected inside the control box 4, a rotary disc 43 is fixedly connected to one end of the connecting rod 41, and the rotary; the main clamping part 2 adopts a driving cylinder 21 to drive a movable clamping block 22 to move towards a fixed clamping block 23 to complete transverse clamping of an object, the driving cylinder 21 (model number is SC 63) is connected with an external air source in a sealing way, before the driving cylinder 21 clamps, a workpiece is firstly placed on the side surface of the fixed clamping block 23 and attached to the fixed clamping block 23, at the moment, a turntable 43 is rotated, a connecting rod 41 drives two driving gears 42 to rotate synchronously, at the moment, a transmission gear 331 drives a rotating sleeve 33 to rotate synchronously, according to a spiral transmission double-acting principle, the sleeve 33 is rotated, the sleeve is rotated in situ, a screw 34 moves linearly, such as a spiral adjusting device of an observation mirror on a stress testing machine, at the moment, the screw 34 is influenced by the internal thread of the rotating sleeve 33 to move axially along the rotating sleeve 33, as the screw 34 drives an auxiliary plate 35 to move towards the middle synchronously, at the moment, the auxiliary plate 35 adjusts the, by the method, before the main clamping part 2 is opened, the hand of an operator is positioned at a position far away from the workpiece, the driving cylinder 21 is prevented from driving the clamping block 22 to cause injury to the operator, the four points are fixed to enable the installation clamping to be more stable, the clamping collapse is prevented, the clamping position of the auxiliary plate 35 can be adjusted through the auxiliary groove 12 and the communication groove 13 according to the size of the workpiece, and the application range is widened.

In fig. 1: supporting shoe 31 both sides bottom surface fixedly connected with mounting panel 32, mounting panel 32 passes through the screw detachable connection with auxiliary groove 12, the shape of auxiliary plate 35 is the rectangle, auxiliary plate 35 and the laminating of 1 up end of locating plate, the mounting panel 32 surface can set up the screw hole, pass the screw hole through the screw, the screw contacts with auxiliary groove 12 bottom surface, supporting shoe 31 bottom has the structure of type of protruding, through the cooperation of type structure and auxiliary groove 12, and then accomplish the spacing and dead purpose of lock of slip, because auxiliary plate 35 and locating plate 1 laminating, and auxiliary plate 35 is the rectangle, therefore unable rotation when auxiliary plate 35 and locating plate 1 laminating, screw rod 34 and auxiliary plate 35 mutually support this moment, screw rod 34 can't take place to rotate with rotating sleeve 33, screw rod 34 can only rotate the interior axial fore-and-aft movement of sleeve 33 again this moment.

In fig. 2: the end, far away from the screw 34, of the rotating sleeve 33 is of a closed structure, and the purpose of the closed structure is mainly to limit the contraction of the screw 34 and improve the sliding stability of the screw 34.

In fig. 3: the supporting block 31 has a rotating cavity 311 on the side, bearings 312 are disposed at two ends of the inner wall of the rotating cavity 311, the rotating sleeve 33 is rotatably connected with the rotating cavity 311 through the bearings 312, the rotating sleeve 33 and the rotating cavity 311 have reduced rotating friction through the bearings 312, and the convenience of rotating the rotating sleeve 33 is improved.

In fig. 4: the bottom surface of the movable clamping block 22 is fixedly connected with a main sliding block 221 matched with the main groove 11, the outer wall of the main sliding block 221 is rotatably connected with a plurality of balls 222 which are uniformly distributed, the movable clamping block 22 slides more stably through the matching limit of the main sliding block 221 and the main groove 11, and the sliding friction force of the movable clamping block and the main groove is reduced through the balls 222, so that the idle work is reduced.

The utility model discloses a theory of operation is: the main clamping part 2 adopts a driving cylinder 21 to drive a movable clamping block 22 to move towards a fixed clamping block 23 to complete transverse clamping of an object, the driving cylinder 21 (model number is SC 63) is connected with an external air source in a sealing way, before the driving cylinder 21 clamps, a workpiece is firstly placed on the side surface of the fixed clamping block 23 and attached to the fixed clamping block 23, at the moment, a turntable 43 is rotated, a connecting rod 41 drives two driving gears 42 to rotate synchronously, at the moment, a transmission gear 331 drives a rotating sleeve 33 to rotate synchronously, according to a spiral transmission double-acting principle, the sleeve 33 is rotated, the sleeve is rotated in situ, a screw 34 moves linearly, such as a spiral adjusting device of an observation mirror on a stress testing machine, at the moment, the screw 34 is influenced by the internal thread of the rotating sleeve 33 to move axially along the rotating sleeve 33, as the screw 34 drives an auxiliary plate 35 to move towards the middle synchronously, at the moment, the auxiliary plate 35 adjusts the, by the method, before the main clamping part 2 is opened, the hand of an operator is positioned far away from the workpiece, so that the operator is prevented from being hurt by driving the clamping block 22 by the driving cylinder 21. And the four-point fixation makes the installation clamping more stable, prevents the clamping from collapsing, and can adjust the clamping position of the auxiliary plate 35 through the auxiliary groove 12 and the communication groove 13 according to the size of the workpiece, thereby improving the application range.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pneumatic clamp with high safety performance for a numerical control milling machine comprises a positioning plate (1) and a main clamping part (2) arranged on the upper end surface of the positioning plate (1), wherein the main clamping part (2) comprises a driving cylinder (21) and a movable clamping block (22), and is characterized in that the driving cylinder (21) is arranged on the upper end surface of the positioning plate (1), a main groove (11) matched with the movable clamping block (22) is formed in the upper end surface of the positioning plate (1), one end of the positioning plate (1) is fixedly connected with a fixed clamping block (23) matched with the movable clamping block (22), and two auxiliary supporting parts (3) are arranged on the upper end surface of the positioning plate (1);

two auxiliary grooves (12) which are symmetrically distributed and matched with the auxiliary supporting part (3) are formed in one side of the positioning plate (1), the auxiliary grooves (12) are located on two sides of the fixed clamping block (23), a supporting block (31) is formed in the auxiliary supporting part (3), a rotating sleeve (33) is rotationally connected to the supporting block (31), a screw rod (34) is screwed in the rotating sleeve (33), an auxiliary plate (35) which is slidably connected to the upper end face of the positioning plate (1) is fixedly connected to the output end of the screw rod (34), and a control box (4) is arranged on one side, away from the positioning plate (1), of the auxiliary supporting part (3);

locating plate (1) both sides seted up with control box (4) complex intercommunication groove (13), it keeps away from to rotate sleeve pipe (33) locating plate (1) one end rotates to be connected inside control box (4), it has drive gear (331) to rotate sleeve pipe (33) one end fixedly connected with, sliding connection has connecting rod (41) in intercommunication groove (13), connecting rod (41) outer wall fixedly connected with two with drive gear (331) meshed drive gear (42), drive gear (42) rotate to be connected the inside of control box (4), connecting rod (41) one end fixedly connected with carousel (43), carousel (43) rotate to be connected the outside of control box (4).

2. The pneumatic clamp with high safety performance for the numerical control milling machine is characterized in that mounting plates (32) are fixedly connected to the bottom surfaces of the two sides of the supporting block (31), and the mounting plates (32) are detachably connected with the auxiliary grooves (12) through screws.

3. The pneumatic clamp with high safety performance for the numerically controlled milling machine according to claim 1, wherein a rotating cavity (311) is formed in the side surface of the supporting block (31), bearings (312) are arranged at two ends of the inner wall of the rotating cavity (311), and the rotating sleeve (33) is rotatably connected with the rotating cavity (311) through the bearings (312).

4. The pneumatic clamp with high safety performance for the numerical control milling machine is characterized in that a main sliding block (221) matched with the main groove (11) is fixedly connected to the bottom surface of the movable clamping block (22).

5. The high-safety pneumatic clamp for the numerically controlled milling machine is characterized in that a plurality of uniformly distributed balls (222) are rotatably connected to the outer wall of the main sliding block (221).

6. The pneumatic clamp with high safety performance for the numerical control milling machine is characterized in that the shape of the auxiliary plate (35) is rectangular, and the auxiliary plate (35) is attached to the upper end face of the positioning plate (1).

7. A high-safety pneumatic clamp for a numerically controlled milling machine according to claim 1, wherein the end of the rotating sleeve (33) far away from the screw (34) is of a closed structure.