CN216264594U

CN216264594U - Clamping mechanism for numerical control machine tool

Info

Publication number: CN216264594U
Application number: CN202120903470.4U
Authority: CN
Inventors: 邱艳丽
Original assignee: Xuzhou Biaote Numerical Control Technology Co ltd
Current assignee: Xuzhou Biaote Numerical Control Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-04-12
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a clamping mechanism for a numerical control machine tool, which comprises a base, wherein two opposite vertical plates are arranged on the base, a rotatable arc-shaped first adjusting arm is arranged between the two vertical plates, a first sliding groove is formed in the first adjusting arm, an adjusting block is slidably mounted in the first sliding groove, a slidable arc-shaped second adjusting arm is inserted in the adjusting block in a penetrating manner, the first adjusting arm and the second adjusting arm are perpendicular to each other, the circle centers of the first adjusting arm and the second adjusting arm coincide, second sliding grooves are respectively formed in one sides of the first adjusting arm and the second adjusting arm close to the circle center of the first adjusting arm and the second adjusting arm, and more than two clamping components for clamping workpieces are respectively slidably mounted in the two second sliding grooves. According to the utility model, by arranging the first adjusting arm, the adjusting block, the second adjusting arm and the clamping assembly, clamping combination at various angles can be formed by adjusting the position of the clamping assembly in the second chute, so that the purpose of clamping workpieces with complicated structural shapes is realized.

Description

Clamping mechanism for numerical control machine tool

Technical Field

The utility model relates to a clamping mechanism for a numerical control machine tool, and belongs to the technical field of numerical control machine tools.

Background

The numerical control machine tool refers to an automatic processing device provided with a program control system. The numerically controlled milling machine is one of numerically controlled machine tools and can machine parts with extremely complex profile shapes or with dimensions that are difficult to control. However, the clamping mechanism of the existing numerical control machine tool is simple, generally only can clamp a relatively flat workpiece, and when the special-shaped workpiece is subjected to fine machining, the special-shaped workpiece cannot be clamped well, the surface to be machined of the workpiece is not convenient to align with a drill bit, a milling cutter and the like, so that the workpiece is inconvenient to machine, and the workpiece is not easy to fall.

SUMMERY OF THE UTILITY MODEL

The utility model provides a clamping mechanism for a numerical control machine tool, which aims to solve the problems in the prior art.

In order to achieve the purpose, the clamping mechanism for the numerical control machine tool comprises a base, wherein two opposite vertical plates are arranged on the base, a rotatable arc-shaped first adjusting arm is arranged between the two vertical plates, a first sliding groove is formed in the first adjusting arm, an adjusting block is slidably mounted in the first sliding groove, a slidable arc-shaped second adjusting arm is inserted in the adjusting block in a penetrating manner, the first adjusting arm and the second adjusting arm are perpendicular to each other, the circle centers of the first adjusting arm and the second adjusting arm coincide, a second sliding groove is formed in one side, close to the circle center of the first adjusting arm and the second adjusting arm, of the first adjusting arm and one side, close to the circle center of the second adjusting arm, and more than two clamping components used for clamping workpieces are respectively slidably mounted in the second sliding grooves.

Preferably, the centre gripping subassembly include with second spout sliding fit's slider and fixed mounting are on the slider the barrel, the axial is provided with the spout on the inner wall of barrel, the barrel is kept away from the one end of slider is provided with rotatable adjusting collar, be provided with in the barrel pass the adjusting collar and with adjusting collar screw-thread fit's threaded rod, the threaded rod is in the inside one end of barrel be equipped with spout sliding fit's stopper, the one end that the barrel was kept away from to the threaded rod is provided with the pressure head.

Preferably, the pressure head is provided with anti-skidding teeth, and the adjusting sleeve is circumferentially provided with a plurality of rotating handles.

Preferably, a rotatable fixing frame is arranged between the two vertical plates, the first adjusting arm is fixedly mounted on the fixing frame, and a rotating mechanism for adjusting the angle of the fixing frame is arranged on one of the vertical plates.

Preferably, the rotating mechanism comprises a worm wheel fixedly sleeved on the rotating shaft of the fixing frame and a worm meshed with the worm wheel, and a handle convenient to rotate is arranged on the rotating shaft of the worm.

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

1. the first adjusting arm and the second adjusting arm are arranged in a circular arc shape, the adjusting block is arranged, the second adjusting arm can slide on the adjusting block to rotate by a certain angle, the second adjusting arm can rotate by changing the position of the adjusting block in the first sliding groove, and the clamping assembly is arranged to adjust the position of the clamping assembly in the second sliding groove to form clamping combination of various angles, so that the purpose of clamping workpieces with complex structural shapes is achieved;

2. through setting up barrel, adjusting collar, threaded rod and pressure head, when rotating the adjusting collar, because the stopper on the threaded rod can only with the spout relative slip in the barrel, the threaded rod will be driven by the adjusting collar and remove to promote the pressure head and support the work piece, form the centre gripping to the work piece.

Drawings

FIG. 1 is a perspective view of the overall construction of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic plan view of the present invention;

FIG. 4 is a schematic plan view of the present invention II.

In the figure: 1. the base, 2, the riser, 3, first regulating arm, 31, first spout, 32, second spout, 33, centre gripping subassembly, 331, slider, 332, barrel, 333, adjusting collar, 3331, turning handle, 334, threaded rod, 335, pressure head, 4, regulating block, 5, second regulating arm, 6, mount, 7, rotary mechanism, 71, worm wheel, 72, worm, 73, handle.

Detailed Description

The technical solutions in the implementation of the present invention will be made clear and fully described below with reference to the accompanying drawings, and the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 4, a clamping mechanism for a numerical control machine tool according to an embodiment of the present invention includes a base 1, two opposite vertical plates 2 are disposed on the base 1, a rotatable circular arc-shaped first adjusting arm 3 is disposed between the two vertical plates 2, a first sliding slot 31 is disposed on the first adjusting arm 3, as can be seen from fig. 1, the first sliding slot 31 penetrates through the first adjusting arm 3, the first sliding slot 31 is circular arc-shaped concentric with the first adjusting arm 3, an adjusting block 4 is slidably mounted in the first sliding slot 31, a slidable circular arc-shaped second adjusting arm 5 is inserted in the adjusting block 4, the reason that the first adjusting arm 3 and the second adjusting arm 5 both adopt circular arc-shaped shapes rather than complete circular ring shapes is to leave enough space for processing a workpiece, the first adjusting arm 3 and the second adjusting arm 5 are perpendicular to each other and have coincident circle centers, first regulating arm 3 with second regulating arm 5 has seted up second spout 32 respectively near one side of self centre of a circle, two there are more than two centre gripping subassemblies 33 that are used for the centre gripping work piece in the second spout 32 respectively slidable mounting, has set up two centre gripping subassemblies 33 in two second spouts 32 respectively in this embodiment. Through setting up convex first regulating arm 3 and second regulating arm 5 to set up regulating block 4, the rotation of certain angle of self is realized to second regulating arm 5 accessible on regulating block 4 slip, can realize the rotation of second regulating arm 5 through changing the position of regulating block 4 in first spout 31, through setting up centre gripping subassembly 33, the accessible is adjusted the position of centre gripping subassembly 33 in second spout 32, form the centre gripping combination of multiple angle, thereby realize the purpose of the comparatively complicated work piece of centre gripping structure shape.

Specifically, the clamping assembly 33 includes a sliding block 331 sliding-fitted with the second sliding groove 32 and a cylinder body 332 fixedly mounted on the sliding block 331, a sliding groove is axially disposed on an inner wall of the cylinder body 332, a rotatable adjusting sleeve 333 is disposed at one end of the cylinder body 332 far away from the sliding block 331, a threaded rod 334 penetrating the adjusting sleeve 333 and in threaded fit with the adjusting sleeve 333 is disposed in the cylinder body 332, a limiting block sliding-fitted with the sliding groove is disposed at one end of the threaded rod 334 inside the cylinder body 332, and a pressure head 335 is disposed at one end of the threaded rod 334 far away from the cylinder body 332. By arranging the cylinder body 332, the adjusting sleeve 333, the threaded rod 334 and the pressure head 335, when the adjusting sleeve 333 is rotated, because the limiting block on the threaded rod 334 can only slide relative to the sliding groove in the cylinder body 332, the threaded rod 334 is driven to move by the adjusting sleeve 333, so that the pressure head 335 is pushed to abut against a workpiece, and the workpiece is clamped.

Specifically, the pressing head 335 is provided with anti-slip teeth, and the adjusting sleeve 333 is circumferentially provided with a plurality of rotating handles 3331. The anti-slip teeth can prevent the pressure head 335 from slipping off when clamping a workpiece, and the rotating handle 3331 facilitates the use of the adjusting sleeve 333 by workers.

Specifically, a rotatable fixing frame 6 is arranged between the two vertical plates 2, the first adjusting arm 3 is fixedly mounted on the fixing frame 6, and a rotating mechanism 7 for adjusting the angle of the fixing frame 6 is arranged on one of the vertical plates 2. As can be seen in fig. 1, the radial direction of the first adjustment arm 3 is perpendicular to the axial direction of the holder 6.

Specifically, the rotating mechanism 7 includes a worm wheel 71 fixedly sleeved on the rotating shaft of the fixed frame 6 and a worm 72 engaged with the worm wheel 71, and a handle 73 facilitating rotation is arranged on the rotating shaft of the worm 72. The worm wheel 71 and the worm 72 have the characteristic of unidirectional locking, so that the angle of the fixed first adjusting arm 3, namely the angle of a clamped workpiece, can be adjusted, and the processing is facilitated.

It should be noted that the components described in the present invention, which are slidably engaged with each other, can be fixed in relative positions by the wing bolts, so as to achieve the purpose of fixed clamping.

When in use: through slide adjusting block 4 and second regulating arm 5, look for the angle that is fit for the centre gripping, then specifically adjust every centre gripping subassembly 33's position for the pressure head 335 of each centre gripping subassembly 33 can mutually support, finally supports tight work piece, accomplishes the centre gripping to complicated shape work piece. The handle 73 can be reused to rotate the worm 72, so that the worm 72 drives the worm wheel 71 to rotate, the angle of the clamped workpiece can be adjusted, and the processing is convenient.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.

Claims

1. A clamping mechanism for a numerical control machine tool comprises a base (1) and is characterized in that two opposite vertical plates (2) are arranged on the base (1), a rotatable arc-shaped first adjusting arm (3) is arranged between the two vertical plates (2), a first sliding groove (31) is formed in the first adjusting arm (3), an adjusting block (4) is installed in the first sliding groove (31) in a sliding manner, a slidable circular arc-shaped second adjusting arm (5) is inserted on the adjusting block (4), the first adjusting arm (3) and the second adjusting arm (5) are mutually vertical and the circle centers are superposed, first regulating arm (3) with second regulating arm (5) are close to one side of self centre of a circle and have seted up second spout (32) respectively, two there are more than two centre gripping subassemblies (33) that are used for centre gripping work piece in second spout (32) slidable mounting respectively.

2. The clamping mechanism for the numerical control machine tool is characterized in that the clamping assembly (33) comprises a sliding block (331) in sliding fit with the second sliding groove (32) and a cylinder body (332) fixedly installed on the sliding block (331), a sliding groove is axially arranged on the inner wall of the cylinder body (332), a rotatable adjusting sleeve (333) is arranged at one end, away from the sliding block (331), of the cylinder body (332), a threaded rod (334) penetrating through the adjusting sleeve (333) and in threaded fit with the adjusting sleeve (333) is arranged in the cylinder body (332), a limiting block in sliding fit with the sliding groove is arranged at one end, away from the cylinder body (332), of the threaded rod (334), and a pressure head (335) is arranged at one end, away from the cylinder body (332).

3. The clamping mechanism for the numerical control machine tool is characterized in that anti-slip teeth are arranged on the pressure head (335), and a plurality of rotating handles (3331) are circumferentially arranged on the adjusting sleeve (333).

4. The clamping mechanism for the numerical control machine tool is characterized in that a rotatable fixing frame (6) is arranged between the two vertical plates (2), the first adjusting arm (3) is fixedly arranged on the fixing frame (6), and a rotating mechanism (7) for adjusting the angle of the fixing frame (6) is arranged on one vertical plate (2).

5. The clamping mechanism for the numerical control machine tool as claimed in claim 4, characterized in that the rotating mechanism (7) comprises a worm wheel (71) fixedly sleeved on the rotating shaft of the fixed frame (6) and a worm (72) engaged with the worm wheel (71), and a handle (73) convenient for rotation is arranged on the rotating shaft of the worm (72).