CN217344478U

CN217344478U - External pressure clamp

Info

Publication number: CN217344478U
Application number: CN202220896936.7U
Authority: CN
Inventors: 肖洋洋; 黄伟; 柳杨
Original assignee: Wuhan Xinjiayi Mechanical And Electrical Equipment Co ltd
Current assignee: Wuhan Xinjiayi Mechanical And Electrical Equipment Co ltd
Priority date: 2022-04-18
Filing date: 2022-04-18
Publication date: 2022-09-02
Anticipated expiration: 2032-04-18

Abstract

The utility model relates to a machine-building design technical field discloses an external pressure anchor clamps, including the frame, set up in the lower holder of frame, set up in the push cylinder is down in a plurality of rotations of frame, it is a plurality of the pressure head is installed to rotatory push cylinder piston rod down, the frame is provided with the gas collection block group, the gas collection block group is including gas collection piece one, gas collection piece two, annular gas distribution channel one has been seted up in the gas collection piece one, annular gas distribution channel one communicates there is main trachea one, a plurality of gas distribution pipe one. The utility model has the advantages of it is following and effect: the gas collection block group is specially used for gas distribution, so that the first gas distribution pipe and the second gas distribution pipe are prevented from being bent and leaking gas. And a blanking hole II is arranged for blanking, so that the blanking of the scraps is not influenced. The workpiece is pressed on the pressing seat through the upper pressing head of the rotary pressing cylinder, the clamping is convenient and efficient, the plurality of pressing seats and the rotary pressing cylinder are arranged on the base simultaneously, and the machining efficiency is improved by clamping and machining a plurality of workpieces simultaneously.

Description

External pressure clamp

Technical Field

The utility model belongs to the technical field of the machine-building design, in particular to external pressure anchor clamps.

Background

The machining center is a highly automated multifunctional numerical control machine tool with a tool magazine and an automatic tool changer. After the workpiece is clamped once in the machining center, the digital control system can control the machine tool to automatically select and replace the cutter according to different procedures, automatically change the rotation speed and the feed amount of a main shaft of the machine tool, the movement track of the cutter relative to the workpiece and other auxiliary functions, and sequentially complete the machining of multiple procedures on multiple surfaces of the workpiece. And has various tool changing or selecting functions, thereby greatly improving the production efficiency. When a machining center machines the interior of a part with a cylindrical structure, a conventional clamp such as a three-jaw chuck is difficult to meet machining requirements, so that a special clamp needs to be designed for clamping.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an external pressure anchor clamps has the quick convenient effect of clamping.

The above technical purpose of the present invention can be achieved by the following technical solutions: an external pressure clamp comprises a machine base, a lower clamping base arranged on the machine base and a plurality of rotary pressing cylinders arranged on the machine base, wherein piston rods of the rotary pressing cylinders are provided with upper pressure heads, the machine base is provided with a gas collection block group, the gas collection block group comprises a gas collection block I and a gas collection block II, an annular gas distribution channel I is arranged in the gas collection block I, the annular gas distribution channel I is communicated with a main gas pipe I and a plurality of gas distribution pipes I, and the plurality of gas distribution pipes I are respectively connected with the plurality of rotary pressing cylinders one by one; an annular gas distribution channel II is formed in the gas collection block II, the annular gas distribution channel II is communicated with a main gas pipe II and a plurality of gas distribution pipes II, and the plurality of gas distribution pipes II are respectively connected with the plurality of rotary pressing cylinders one by one.

By adopting the technical scheme, during clamping, a workpiece is placed on the lower clamping seat, the piston rod of the rotary pressing-down cylinder rotates and presses down, and the upper pressing head contacts and presses the workpiece on the lower clamping seat. Through the design of the gas collection block group, the first gas distribution pipe and the second gas distribution pipe are respectively and directly connected with the rotary pressing cylinder, so that the gas pipes are not bent or leaked, and the clamping is more stable.

The utility model discloses a further set up to: the lower clamping seat is provided with a first blanking hole, the gas collection block group is provided with a second blanking hole, and the second blanking hole is located below the first blanking hole.

Through adopting above-mentioned technical scheme, machining center is adding man-hour to the work piece inner wall, and the piece drops in proper order under the action of gravity and through blanking hole one, blanking hole two after, collects the frame on, is convenient for concentrate the clearance.

The utility model discloses a further set up to: the rotary pressing cylinders are uniformly distributed around the lower clamping seat, and the gas collection block group is positioned right below the lower clamping seat.

The utility model discloses a further set up to: the first annular gas distribution channel and the second annular gas distribution channel are both annular.

By adopting the technical scheme, the first gas collecting block and the second gas collecting block are positioned among the plurality of rotary pressing cylinders, and the first annular gas distributing channel and the second annular gas distributing channel are arranged in a ring shape, so that the compressed air can flow conveniently.

The utility model discloses a further set up to: three rotary pressing cylinders are distributed around each lower clamping seat, a 120-degree included angle is formed between every two adjacent gas distribution pipes I, and a 120-degree included angle is formed between every two adjacent gas distribution pipes II.

The utility model discloses a further set up to: the engine base comprises a mounting base, the rotary pressing cylinder and the lower clamping base are fixedly mounted on the upper end face of the mounting base, the gas collection block group is fixedly mounted on the lower end face of the mounting base, and the mounting base is provided with a plurality of gas pipe through holes.

The utility model discloses a further set up to: the machine base further comprises an upper shell, the upper shell is fixedly mounted above the mounting seat, and the rotary pressing cylinder and the lower clamping seat penetrate through the upper shell upwards.

Through adopting above-mentioned technical scheme, machining center is when processing the work piece, if the piece splashes out from the work piece, can drop to the upper housing, can directly not drop to the mount pad on, directly clear up the upper housing can.

The utility model discloses a further set up to: the base further comprises a base and a plurality of stand columns, wherein the upper ends of the stand columns are fixed on the base, and the upper ends of the stand columns are fixed on the mounting base.

Through adopting above-mentioned technical scheme, on the piece that drops from blanking hole one, blanking hole two can collect the base, the base passes through the stand and links to each other with the mount pad, makes to form the space between base and the mount pad, can supply the instrument to get into the clearance piece.

The utility model discloses a further set up to: the upper pressure head comprises a pressure seat and a pressure rod in threaded connection with the pressure seat.

The utility model discloses a further set up to: the frame is provided with a plurality of lower holder.

By adopting the technical scheme, the machine base is provided with the plurality of lower clamping seats, and the periphery of each clamping seat is uniformly distributed with the plurality of rotary pressing cylinders, so that a plurality of workpieces can be clamped at the same time for processing by a processing center, and the production efficiency is improved.

The utility model has the advantages that: the gas collection block group is specially used for gas distribution, so that the first gas distribution pipe and the second gas distribution pipe are prevented from being bent and leaking gas. And a blanking hole II is arranged for blanking, so that the blanking of the chips is not influenced. The upper pressing head of the rotary pressing cylinder compresses the workpiece on the pressing seat, the clamping is convenient and efficient, the multiple pressing seats and the rotary pressing cylinder are arranged on the machine base simultaneously, and meanwhile, the clamping and the machining of the multiple workpieces are achieved, and the machining efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

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

Fig. 2 is a schematic diagram of the position relationship among the gas collection block group, the rotary pressing cylinder and the lower holder of the present invention.

Fig. 3 is a schematic diagram of the explosion state of the gas collection block group of the present invention.

Fig. 4 is a schematic structural diagram of the workpiece for clamping according to the present invention.

In the figure, 1, a stand; 11. a base; 12. a column; 13. a mounting seat; 14. an upper housing; 2. a lower clamping seat; 21. a blanking hole I; 3. rotating the pressing cylinder; 31. pressing a base; 32. a pressure lever; 4. a gas collection block group; 41. a gas collecting block I; 411. a first annular gas distribution channel; 42. a second gas collecting block; 421. a second annular gas distribution channel; 43. a blanking hole II; 5. a main air pipe I; 6. a first gas distributing pipe; 7. a second main air pipe; 8. a second gas distributing pipe; 9. and (5) a workpiece.

Detailed Description

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

An external pressure clamp, as shown in fig. 1 to 3, comprises a machine base 1, four lower clamp bases 2 and twelve rotary pressing cylinders 3. The machine base 1 comprises a base 11, four upright posts 12, a mounting seat 13 and an upper shell 14 from bottom to top, wherein the lower ends of the upright posts 12 are fixed on the base 11, and the upper ends of the upright posts are fixed on the mounting seat 13. Four lower holder 2 all install and fix on mount pad 13, and every three rotatory air cylinder 3 that pushes down evenly distributed is around lower holder 2. The rotary pressing cylinders 3 are fixedly arranged on the mounting base 13, an upper pressing head is arranged on a piston rod of each rotary pressing cylinder 3, and each upper pressing head comprises a pressing base 31 and a pressing rod 32 in threaded connection with the pressing base 31. The rotary pressing cylinder 3 and the lower clamping seat 2 both penetrate through the upper shell 14 upwards.

Four gas collection block groups 4 are installed on the lower end face of the installation base 13, each gas collection block group 4 is installed under each lower clamping base 2, a first blanking hole 21 is formed in each lower clamping base 2, a second blanking hole 43 is formed in each gas collection block group 4, and the second blanking hole 43 is located under the first blanking hole 21. The gas collection block group 4 comprises a gas collection block I41 and a gas collection block II 42, an annular gas distribution channel I411 is formed in the gas collection block I41, the annular gas distribution channel I411 is communicated with a main gas pipe I5 and three gas distribution pipes I6, and the three gas distribution pipes I6 are respectively connected with the three rotary pressing cylinders 3. An annular gas distribution channel II 421 is formed in the gas collection block II 42, the annular gas distribution channel II 421 is communicated with a main gas pipe II 7 and three gas distribution pipes II 8, and the three gas distribution pipes II 8 are respectively connected with the three rotary pressing cylinders 3. The first annular gas distribution channel 411 and the second annular gas distribution channel 421 are both circular. An included angle of 120 degrees is formed between every two adjacent gas distribution pipes I6 and between every two adjacent gas distribution pipes II 8. The mounting seat 13 is provided with a plurality of air pipe through holes, and the air pipe through holes are used for the first air distribution pipe 6 and the second air distribution pipe 8 to penetrate through.

The working principle is as follows: as shown in fig. 4, the workpiece 9 clamped by the external pressure clamp includes a cylindrical body and a tooth-shaped structure at one end, and a groove needs to be machined on the inner wall of the body. During clamping, a workpiece 9 is placed on the lower clamping seat 2, the piston rod of the rotary pressing cylinder 3 rotates and presses downwards, and the upper pressing head contacts and presses the workpiece 9 on the lower clamping seat 2. The machining center machines the workpiece 9, and chips fall under the action of gravity, sequentially pass through the first blanking hole 21 and the second blanking hole 43 and are collected on the base 11. After the processing is finished, the piston rod of the rotary pressing cylinder 3 rotates and rises, the upper pressing head leaves the workpiece 9 and is staggered with the workpiece 9, and the workpiece 9 can be taken down at the moment.

Claims

1. An external pressure anchor clamps which characterized in that: the gas collecting device comprises a base (1), a lower clamping seat (2) arranged on the base (1), and a plurality of rotary pressing cylinders (3) arranged on the base (1), wherein piston rods of the rotary pressing cylinders (3) are provided with upper pressing heads, the base (1) is provided with a gas collecting block group (4), the gas collecting block group (4) comprises a gas collecting block I (41) and a gas collecting block II (42), an annular gas distributing channel I (411) is arranged in the gas collecting block I (41), the annular gas distributing channel I (411) is communicated with a main gas pipe I (5) and a plurality of gas distributing pipes I (6), and the plurality of gas distributing pipes I (6) are respectively connected with the plurality of rotary pressing cylinders (3) one by one; an annular gas distribution channel II (421) is formed in the gas collection block II (42), the annular gas distribution channel II (421) is communicated with a main gas pipe II (7) and a plurality of gas distribution pipes II (8), and the gas distribution pipes II (8) are respectively connected with the rotary pressing cylinders (3) one by one.

2. An external pressure clamp according to claim 1 characterized in that: the lower clamping seat (2) is provided with a first blanking hole (21), the gas collection block group (4) is provided with a second blanking hole (43), and the second blanking hole (43) is located below the first blanking hole (21).

3. External pressure jig according to claim 1 or 2 characterized in that: the rotary pressing cylinders (3) are uniformly distributed around the lower clamping seat (2), and the gas collection block group (4) is positioned right below the lower clamping seat (2).

4. An external pressure clamp according to claim 1 characterized in that: the annular gas distribution channel I (411) and the annular gas distribution channel II (421) are both annular.

5. An external pressure clamp according to claim 1 characterized in that: three rotary pressing cylinders (3) are distributed around each lower clamping seat (2), a 120-degree included angle is formed between every two adjacent gas distribution pipes I (6), and a 120-degree included angle is formed between every two adjacent gas distribution pipes II (8).

6. An external pressure clamp according to claim 1 characterized in that: the engine base (1) comprises a mounting base (13), the rotary pressing cylinder (3) and the lower clamping base (2) are fixedly installed on the upper end face of the mounting base (13), the gas collection block group (4) is fixedly installed on the lower end face of the mounting base (13), and the mounting base (13) is provided with a plurality of gas pipe through holes.

7. An external pressure clamp according to claim 6 characterized in that: the machine base (1) further comprises an upper shell (14), the upper shell (14) is installed and fixed above the installation base (13), and the rotary pressing cylinder (3) and the lower clamping base (2) upwards penetrate through the upper shell (14).

8. An external pressure clamp according to claim 7 characterized in that: the machine base (1) further comprises a base (11) and a plurality of stand columns (12), wherein the upper ends of the stand columns (12) are fixed on the base (11), and the upper ends of the stand columns (12) are fixed on the mounting base (13).

9. An external pressure clamp according to claim 1 characterized in that: the upper pressure head comprises a pressure seat (31) and a pressure rod (32) in threaded connection with the pressure seat (31).

10. An external pressure clamp according to claim 1 characterized in that: the machine base (1) is provided with a plurality of lower clamping seats (2).