CN216577175U

CN216577175U - Opposite vertex fixture mechanism and machine tool

Info

Publication number: CN216577175U
Application number: CN202122949378.4U
Authority: CN
Inventors: 吕曙光; 江浩; 邹飞; 孙建军
Original assignee: Hebei Master Metal Machinery Manufacturing Co ltd
Current assignee: Hebei Master Metal Machinery Manufacturing Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-05-24
Anticipated expiration: 2031-11-29

Abstract

The application provides a butting clamp mechanism and a machine tool, wherein the butting clamp mechanism is arranged on a rotary machine tool, and the rotary machine tool comprises a base platform and a rotary table; the revolving stage rotatable and liftable set up in the base station top, butt clamp mechanism includes: the rotary driving mechanism is fixed on the rotary table; the workpiece has a first end and a second end; the rotary driving mechanism is used for clamping a first end of the workpiece; a cantilever fixed to one side of the rotation driving mechanism; the cantilever assembly extends out of the edge of the rotary table and is positioned above the base station; the butting mechanism is slidably arranged on the cantilever along a first direction and used for butting against the second end of the workpiece; two ends of the workpiece are connected to form a vertex line; the first direction is parallel to the opposite vertex line; a drive mechanism mounted on the boom assembly; and the auxiliary supporting component is arranged on the base platform.

Description

Opposite vertex fixture mechanism and machine tool

Technical Field

The invention relates to the field of screw taps, and particularly discloses an opposite-top clamp mechanism and a machine tool.

Background

The machine tool is an important tool for human production and labor, and along with the development and comprehensive application of electronic technology, computer technology and automation, precision machinery, measurement and other technologies, a novel machine tool with electromechanical integration is generated: numerically controlled machine tools, lathes, are an important branch of machine tools, and are machine tools for turning rotating workpieces mainly with turning tools. The lathe can be correspondingly processed by a drill bit, a reamer, a screw tap, a die, a knurling tool and the like, wherein the screw tap is widely used and applied.

The lathe uses an auxiliary tool called a screw tap clamp, but most of the traditional screw tap clamping tools adopt three-jaw clamping, and the screw tap is easy to deviate from a rotation center when the screw tap is deformed or a non-circular end is encountered, so that the screw tap is easy to break during machining. At present, the screw tap clamp adopting the opposite-top structure is inconvenient to mount and dismount due to fixed structure, and wastes time and labor.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, the present application, in a first aspect, aims to provide an opposite-vertex clamping mechanism, which is arranged on a rotary machine tool, the rotary machine tool comprising a base table and a rotary table; the revolving stage rotatable and liftable set up in the base station top, butt clamp mechanism includes:

the rotary driving mechanism is used for clamping a workpiece and is fixed on the rotary table; the workpiece has a first end and a second end; the rotary driving mechanism is used for clamping a first end of the workpiece;

a cantilever fixed to one side of the rotation driving mechanism; the cantilever assembly extends out of the edge of the rotary table and is positioned above the base station;

the butting mechanism is slidably arranged on the cantilever along a first direction and used for butting against the second end of the workpiece; two ends of the workpiece are connected to form a vertex line; the first direction is parallel to the opposite vertex line;

the driving mechanism is arranged on the cantilever assembly and used for driving the opposite-top mechanism to slide along a first direction;

and the auxiliary supporting component is arranged on the base station and is used for supporting the opposite-top mechanism.

According to the technical scheme provided by the embodiment of the application, the rotary driving mechanism comprises a clamping sleeve, a first pair of ejecting heads which are coaxially mounted are arranged in the clamping sleeve, and the extending direction of the first pair of ejecting heads is parallel to the first direction.

According to the technical scheme that this application embodiment provided, the centre gripping cover is close to work piece second end one side is equipped with the centre gripping hole, the centre gripping hole is squarely.

According to the technical scheme provided by the embodiment of the application, the opposite-jacking mechanism comprises a sliding saddle and a second opposite-jacking head assembly, wherein a connecting block is arranged on the sliding saddle; the second pair of top head assemblies are slidably mounted on the connecting block, and the sliding direction is perpendicular to the first direction and perpendicular to the vertical direction.

According to the technical scheme that this application embodiment provided, the second is to top subassembly, including needle frame and adjusting screw, be equipped with the second on the needle frame and to top, the second is to top direction parallel to first direction.

According to the technical scheme that this application embodiment provided, be equipped with the spout in the needle frame, adjusting screw be last be equipped with the slider that the chute corresponds, adjusting screw penetrates the connecting block until chute department, drive the needle frame displacement.

According to the technical scheme that this application embodiment provided, the saddle with be equipped with the sealing washer between the cantilever for sliding seal.

According to the technical scheme provided by the embodiment of the application, the driving mechanism is an air cylinder or a hydraulic cylinder.

According to the technical scheme provided by the embodiment of the application, the auxiliary supporting assembly is a hydraulic or pneumatic auxiliary supporting assembly.

In a second aspect, the present application provides a machine tool having the above-described opposing clamp mechanism mounted thereon.

The invention has the beneficial effects that: according to the opposite-top clamp mechanism provided by the technical scheme, the rotary driving mechanism fixed on the rotary table and the cantilever extending out of one side of the rotary driving mechanism are arranged, and the cantilever extends out of the edge of the rotary table and is positioned above the base platform; the butting mechanism is slidably arranged on the cantilever, and the auxiliary supporting component is arranged on the base station and used for supporting the butting mechanism; the design of the cantilever in the technical scheme enables the clamped workpiece to extend out of the rotary table and be positioned above the base platform, so that the workpiece can be conveniently machined, and the opposite-top clamp is applied to the rotary machine tool; simultaneously, the auxiliary supporting component is arranged, the corresponding cantilever structure provides support for the opposite-top mechanism, the balance and stability of the opposite-top clamp mechanism are improved, the falling condition in the workpiece machining process is avoided, and the machining quality is improved.

Drawings

FIG. 1 is a schematic view of one embodiment of a machine tool of the present application mounting a countertop clamp mechanism;

FIG. 2 is a schematic view of one embodiment of a countertop clamp mechanism of the present application;

FIG. 3 is a cross-sectional view of one embodiment of a countertop fixture mechanism of the present application;

FIG. 4 is a schematic view of a second pair of plug assemblies of a countertop fixture mechanism of the present application;

FIG. 5 is a schematic view of the interior of the needle carrier of an opposing clamp mechanism of the present application;

1. a rotation driving mechanism; 10. a clamping sleeve; 11. a first pair of headers; 12. a second pair of headers; 100. A base station; 2. a cantilever; 200. a turntable; 3. a butting mechanism; 30. a saddle; 31. connecting blocks; 310. A needle frame; 311. an adjusting screw; 400 grinding mechanism; 5. a chute; 6. a chute; 7. a slider; 8. An auxiliary support assembly.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

Example 1

As shown in fig. 1, an opposite vertex fixture mechanism is arranged on a rotary machine tool, as shown in fig. 1, the rotary machine tool includes a base 100 and a rotary table 200, the rotary table 200 is rotatably and liftably mounted on the base 100, the rotary table 200 is coaxial with the base 100, four sets of opposite vertex fixture mechanisms are arranged on the rotary table 200, and the four sets of opposite vertex fixture mechanisms are circumferentially arranged by taking a first direction as a central axis; be equipped with four groups of grinding mechanism 400 on the base station 100, four groups of grinding mechanism 400 with four groups are to the fixture mechanism one-to-one correspondence of summit, form four groups of stations, include: a grooving station, a corner shoveling station, a thread grinding station and a chip groove station; the opposite-top clamp mechanism comprises:

the rotary driving mechanism 1 is used for clamping a workpiece and is fixed on the rotary table; the workpiece has a first end and a second end; the rotary driving mechanism 1 is used for clamping a first end of the workpiece;

a cantilever 2 fixed to one side of the rotary drive mechanism 1; the cantilever 2 extends out of the edge of the rotary table and is positioned above the base station;

the butting mechanism 3 is slidably arranged on the cantilever 2 along a first direction and is used for butting against the second end of the workpiece; two ends of the workpiece are connected to form a vertex line; the first direction is parallel to the opposite vertex line; the first direction is the direction of the arrow in fig. 2.

The driving mechanism is arranged on the cantilever 2 assembly and used for driving the opposite-top mechanism 3 to slide along a first direction;

and the auxiliary supporting component 8 is arranged on the base platform and is used for supporting the opposite-top mechanism 3.

The cantilever 2 is fixed on one side of the rotary driving mechanism 1 through a bolt, the extending direction of the cantilever is parallel to the direction of a workpiece, the opposite-top mechanism 3 is slidably mounted on the cantilever 2, and a space for placing the workpiece is formed in the middle of the opposite-top mechanism. The opposite-top clamp mode can ensure that the workpiece is stressed uniformly and is not easy to break. One end of the driving mechanism is connected with the rotary driving mechanism 1 through a bolt, and the other end of the driving mechanism is connected with the opposite-top mechanism 3 through a bolt. The drive part works to drive the opposite-vertex mechanism 3 to be far away from the rotary drive mechanism 1, a workpiece is put in, and then the opposite-vertex mechanism 3 is driven by the drive part to be close to the rotary drive mechanism 1 to clamp and fix the workpiece.

The auxiliary supporting component 8 is arranged on the base platform, supports are provided for the opposite-top mechanism corresponding to the cantilever structure, the balance and stability of the opposite-top clamp mechanism are improved, the falling condition in the workpiece machining process is avoided, and the machining quality is improved.

Preferably, the cantilever 2 extends out of the edge of the rotary table and is located above the base of the base, a certain space is formed in the middle of the cantilever, and an auxiliary supporting component 8 is fixedly arranged in the space, when the rotary table descends to a required position, the auxiliary supporting component 8 is abutted to the opposite-jacking mechanism 3 to generate an upward supporting force, so that the opposite-jacking mechanism 3 is prevented from falling down due to gravity, and the workpiece is unevenly stressed.

Preferably, the opposite-top clamp mechanism is of a steel structure, so that the machining precision is high, and the heat dissipation performance is good.

Specifically, in the present embodiment, the rotary drive mechanism 1 includes a clamping sleeve 10, a first pair of plugs 11 coaxially mounted is disposed in the clamping sleeve 10, and an extending direction of the first pair of plugs 11 is parallel to the first direction.

The worm wheel and worm mechanism is arranged in the rotary driving mechanism 1, the worm wheel is vertically arranged in the rotary driving mechanism 1, a fixedly connected gear is arranged below the worm wheel, and the worm wheel is fixedly connected with the clamping sleeve 10. When the external driving gear drives the worm to rotate, the worm wheel meshed with the worm gear drives the clamping sleeve to rotate, and then the screw tap is driven to rotate, so that the processing is facilitated.

Preferably, a clamping hole is formed in one side, close to the second end of the workpiece, of the clamping sleeve 10, and the clamping hole is square. The square shape is matched with the hexagon socket screw tap, the function of locking the screw tap can be realized, and the screw tap can not deviate or misplace when rotating.

Example 2

In this embodiment, on the basis of embodiment 1, a fine adjustment assembly is added to the opposite-vertex mechanism 3, the opposite-vertex mechanism 3 includes a saddle 30 and a second opposite-vertex head assembly, and a connection block 31 is installed on the saddle 30; the second pair of plug assemblies is slidably mounted on the connecting block 31, and the sliding direction is perpendicular to the first direction and perpendicular to the vertical direction. That is, the second pair of head assemblies can slide in a direction parallel to the table of the base.

The second pair of top head components comprises a needle frame 310 and an adjusting screw 311, wherein a second pair of top heads 12 are arranged on the needle frame 310, and the direction of the second pair of top heads 12 is parallel to the first direction. Assuming that the sliding direction of the second pair of plug assemblies is the second direction, the direction of the arrow shown in fig. 4 is shown. A sliding groove 5 is arranged on one side of the connecting frame 31 close to the rotary driving mechanism 1, one side of the needle frame 310 far away from the rotary driving mechanism 1 is slidably clamped in the sliding groove 5, and the adjusting screw 311 can drive the needle frame 310 to slide in the sliding groove 5 along a second direction.

Specifically, as shown in fig. 5, a chute 6 is disposed on a side of the needle frame 310 away from the rotary driving mechanism 1, a slider 7 corresponding to the chute 6 is fixed on the adjusting screw 311, and the adjusting screw 311 penetrates through the connecting block 31 to the chute 6 to drive the needle frame 310 to move. The included angle between the extending direction of the chute 6 and the central axis of the rotary table is 5-30 degrees; the sliding block 7 can slide in the chute 6 by pushing the adjusting screw 311 up and down, so as to push the needle frame 310 to slide in the chute 5.

The sliding saddle 30 is formed by bending a steel material, so that the machining precision is high, and the sliding can be ensured not to deviate; the saddle 30 is shaped to fit the arm 2. Needle frame 310 passes through the bolt fastening and is in on the saddle 30, connecting block 31 is close to work piece one side and is equipped with spout 5, needle frame 310 is close to connecting block 31 one side is "protruding" profile, is favorable to the slip direction accurate, the slip direction is the arrow direction in fig. 4, is convenient for adjust the position of second butt head 12.

Preferably, a sealing ring is provided between the saddle 30 and the cantilever 2 for sliding sealing. The driving mechanism is a cylinder or a hydraulic cylinder.

Preferably, the auxiliary support assembly 8 is a hydraulic auxiliary support assembly. The auxiliary supporting assembly 8 comprises an ejector rod, a spring and a hydraulic cylinder, the ejector rod is in an ejection state through the spring in a normal state, the ejector rod descends to a required height when the rotary table descends, the ejector rod is pressed downwards by the opposite-ejecting mechanism 3, the ejector rod descends to drive the spring to compress, the hydraulic cylinder works, the ejector rod is locked upwards to support the opposite-ejecting mechanism 3, and a workpiece is guaranteed to be stably held in a working project without deviation.

Example 3

The utility model provides a lathe, install foretell opposite vertex fixture mechanism on the lathe.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.

Claims

1. The opposite-top clamp mechanism is arranged on a rotary machine tool, and the rotary machine tool comprises a base platform (100) and a rotary table (200); revolving stage (200) rotatable and liftable set up in base station (100) top, its characterized in that: the opposite-top clamp mechanism comprises:

the rotary driving mechanism (1) is used for clamping a workpiece and is fixed on the rotary table; the workpiece has a first end and a second end; the rotary driving mechanism (1) is used for clamping a first end of the workpiece and driving the workpiece to rotate axially;

a cantilever (2) fixed to one side of the rotary drive mechanism (1); the cantilever (2) extends out of the edge of the rotary table and is positioned above the base platform (100);

the opposite-butting mechanism (3) is slidably arranged on the cantilever (2) along a first direction and is used for butting against the second end of the workpiece; two ends of the workpiece are connected to form a vertex line; the first direction is parallel to the opposite vertex line;

the driving mechanism is arranged on the cantilever (2) assembly and used for driving the opposite-top mechanism (3) to slide along a first direction;

an auxiliary support assembly (8) mounted on the base (100) for supporting the mechanism (3).

2. The opposite-top clamp mechanism according to claim 1, wherein: the rotary driving mechanism (1) comprises a clamping sleeve (10), a first pair of ejecting heads (11) which are coaxially mounted are arranged in the clamping sleeve (10), and the extending direction of the first pair of ejecting heads (11) is parallel to the first direction.

3. The opposite-top clamp mechanism according to claim 2, wherein: and a clamping hole is formed in one side, close to the second end of the workpiece, of the clamping sleeve (10), and the shape of the clamping hole is matched with that of the workpiece.

4. The opposite-top clamp mechanism according to claim 1, wherein: the ejection aligning mechanism (3) comprises a sliding saddle (30) and a second ejection aligning assembly, and a connecting block (31) is mounted on the sliding saddle (30); the second pair of plug assemblies are slidably mounted on the connecting block (31), and the sliding direction is perpendicular to the first direction and perpendicular to the vertical direction.

5. The opposite-top clamp mechanism according to claim 4, wherein: the second pair of top head components comprises a needle frame (310) and an adjusting screw (311), wherein a second pair of top heads (12) are arranged on the needle frame (310), and the direction of the second pair of top heads (12) is parallel to the first direction.

6. The opposite clamp mechanism as set forth in claim 5, wherein: be equipped with chute (6) in needle frame (310), be equipped with on adjusting screw (311) with slider (7) that chute (6) correspond, adjusting screw (311) penetrate connecting block (31) are up to chute (6) department, the drive needle frame (310) displacement.

7. The opposite clamp mechanism as set forth in claim 6, wherein: and a sealing ring is arranged between the saddle (30) and the cantilever (2) and used for sliding sealing.

8. The opposite-vertex clamp mechanism according to claim 1, wherein: the driving mechanism is a cylinder or a hydraulic cylinder.

9. The opposite-vertex clamp mechanism according to claim 1, wherein: the auxiliary supporting component (8) is a hydraulic or pneumatic auxiliary supporting component.

10. A machine tool, characterized by: the machine tool is provided with the opposite-top clamp mechanism of any one of claims 1-9.