CN220839094U - CNC adds clamping apparatus - Google Patents

Abstract

The utility model discloses a CNC processing fixing clamp, which belongs to the field of CNC clamps and comprises a processing table, a fixing plate vertically fixed at four sides of the top of the processing table and a hydraulic cylinder assembled outside the fixing plate, wherein the output end of the hydraulic cylinder extends to the other side of the fixing plate and is fixedly connected with a clamping assembly, and the clamping assembly comprises: the arc-shaped fixing block is fixed at the output end of the hydraulic cylinder, and a first chute is formed along the arc surface at the middle position of the inner side of the arc-shaped fixing block in the height direction; the sliding piece is arranged on the inner side of the arc-shaped fixed block, and a first sliding block capable of sliding along the inner part of the first sliding groove is fixed on the outer side surface of the sliding piece; the semicircular rubber part is arranged in the semicircular groove. According to the clamping assembly, the sliding piece in the clamping assembly slides in the arc-shaped fixed block, and the semicircular rubber piece slides in the sliding piece, so that workpieces with irregular side surfaces can be clamped conveniently, and the clamping assembly is simple and practical.

Description

CNC adds clamping apparatus

Technical Field

The utility model relates to the field of CNC clamps, in particular to a CNC machining fixing clamp.

Background

In general, CNC machining generally refers to computer digital control precision machining, such as CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines, etc., in the process of clamping workpieces, the side surfaces of the workpieces are not all planar structures, and some of the side surfaces of the workpieces are arc-shaped or irregularly shaped.

In the prior art of the authorization bulletin number CN218836848U, a handle is rotated by a worker, the handle drives an operating rod to rotate, the operating rod drives an operating gear to rotate, the operating gear can respectively drive a first gear and a second gear to rotate in the process of rotating, then the first gear and the second gear drive a third gear and a fourth gear to rotate, and the surfaces of the third gear and the fourth gear drive bevel gears to rotate along with the rotating gears when the third gear and the fourth gear rotate, the driving bevel gears drive the engaged actuating bevel gears to rotate so as to drive the ball screw to rotate, and when the ball screw rotates, screw nuts on two sides of the ball screw are relatively moved, the two screw nuts drive a clamping piece to clamp a bearing in the moving process, and the two screw nuts are matched with the abutting piece to further limit the bearing, but the bearing is of a round structure generally, and the bearing can not adapt to the side surface of a workpiece, and meanwhile cannot clamp the workpiece with an irregular side surface.

Disclosure of utility model

The utility model mainly aims to provide a CNC machining fixing clamp, which is simple and practical, and a sliding piece in a clamping assembly slides in an arc-shaped fixing block, and a semicircular rubber piece slides in the sliding piece, so that workpieces with irregular side surfaces can be clamped conveniently.

In order to achieve the above object, the present utility model provides a CNC machining fixture, including a machining table, a fixing plate vertically fixed at four sides of the top of the machining table, and a hydraulic cylinder assembled outside the fixing plate, wherein an output end of the hydraulic cylinder extends to the other side of the fixing plate and is fixedly connected with a clamping assembly, the clamping assembly includes:

The arc-shaped fixing block is fixed at the output end of the hydraulic cylinder, and a first chute is formed along the arc surface at the middle position of the inner side of the arc-shaped fixing block in the height direction;

The sliding piece is arranged on the inner side of the arc-shaped fixed block, a first sliding block capable of sliding along the inner part of the first sliding groove is fixed on the outer side face of the sliding piece, semicircular grooves are formed in the inner side of the sliding piece at equal intervals along the length direction of the sliding piece, and second sliding grooves are formed in the sliding piece on the inner side of the semicircular grooves;

The semicircular rubber part is arranged in the semicircular groove, a second sliding block capable of sliding along the second sliding groove is fixed on the outer side face of the semicircular rubber part, and arc grooves are symmetrically formed in the other side of the semicircular rubber part.

Preferably, rubber pads are adhered to the inner side surfaces of the inner side of the sliding piece except the semicircular grooves.

Preferably, the outer side of the sliding piece is distributed in an arc structure matched with the inner side of the arc fixing block, and the inner side of the sliding piece is distributed in a plane structure.

Preferably, the sections of the first sliding groove, the first sliding block, the second sliding groove and the second sliding block are distributed in a T-shaped structure.

The utility model has the advantages that: when carrying out the centre gripping to the work piece, can be according to the shape of work piece side, when clamping assembly contradicts the work piece side, rethread pneumatic cylinder drive clamping assembly removes, at this moment, contradict simultaneously because the characteristic of work piece side shape with the work piece at clamping assembly medial surface, because when the slider is inconsistent with the irregular side, for example: when the side of work piece has great edges and corners, the pneumatic cylinder still promotes the condition that presss from both sides tight subassembly and remove this moment, and the slider can use edges and corners as the relative rotation that carries out adaptability, consequently, first slider can slide along first spout inside, and the same reason is after first slider carries out the slip of adaptability, covered work piece position department also can carry out the rotation of adaptability thereupon if still having the condition of edges and corners under the circumstances to make the second slider can slide in the inside of second spout, be convenient for the work piece of offside personally submitting irregular shape to carry out the centre gripping, simple and practical.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model. In the drawings:

fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a partial structural schematic of the present utility model.

Fig. 3 is a schematic cross-sectional view of a clamping assembly of the present utility model.

In the above figures, 100, the processing station; 200. a hydraulic cylinder; 300. a fixing plate; 400. a clamping assembly; 401. an arc-shaped fixed block; 402. a first slider; 403. a first chute; 404. a slider; 405. a semicircular rubber member; 406. an arc-shaped groove; 407. a second slider; 408. a second chute; 409. a semicircular groove.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions according to the embodiments of the present utility model with reference to the accompanying drawings. It will be apparent that the described embodiments are merely some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1-3, the present embodiment provides a CNC machining fixture, including a machining table 100, a fixing plate 300 vertically fixed at four sides of the top of the machining table 100, and a hydraulic cylinder 200 assembled outside the fixing plate 300, wherein an output end of the hydraulic cylinder 200 extends to the other side of the fixing plate 300 and is fixedly connected with a clamping assembly 400, the clamping assembly 400 includes:

The arc-shaped fixing block 401 is fixed at the output end of the hydraulic cylinder 200, and a first chute 403 is formed along an arc surface at the middle position of the inner side of the arc-shaped fixing block 401 in the height direction;

The sliding piece 404 is arranged at the inner side of the arc-shaped fixed block 401, a first sliding block 402 capable of sliding along the inside of the first sliding groove 403 is fixed on the outer side surface of the sliding piece 404, semicircular grooves 409 are formed at equal intervals along the length direction of the inner side of the sliding piece 404, and second sliding grooves 408 are formed on the sliding piece 404 at the inner side of the semicircular grooves 409, when the side surface of the workpiece has a larger edge angle, under the condition that the hydraulic cylinder 200 pushes the clamping assembly 400 to move at the moment, the sliding piece 404 can rotate correspondingly and adaptively by taking the edge angle as a fulcrum, so that the first sliding block 402 can slide along the inside of the first sliding groove 403;

The semicircular rubber member 405 is disposed in the semicircular groove 409, and a second slider 407 capable of sliding along the second sliding groove 408 is fixed on the outer side surface of the semicircular rubber member, and arc grooves 406 are symmetrically formed on the other side of the semicircular rubber member 405, after the first slider 402 adaptively slides, if an edge angle exists at the covered workpiece position, the semicircular rubber member 405 also adaptively rotates, so that the second slider 407 can slide in the second sliding groove 408.

In this embodiment, rubber pads are adhered to the inner side surfaces of the inner side of the sliding member 404 except the semicircular groove 409, so that when the sliding member 404 contacts with the side surface of the workpiece, on one hand, the anti-slip effect of the clamp is increased, and on the other hand, when the workpiece is clamped, if the side surface of the workpiece has some small edges, the edges can be protected by the elasticity of the rubber pads, so as to prevent the workpiece from being damaged.

In this embodiment, the outer side of the sliding member 404 is distributed in an arc structure matching with the inner side of the arc-shaped fixing block 401, and the inner side of the sliding member 404 is distributed in a plane structure.

In this embodiment, the cross sections of the first sliding groove 403, the first sliding block 402, the second sliding groove 408, and the second sliding block 407 are all distributed in a T-shaped structure.

To sum up:

Firstly, a workpiece is placed on a processing table 100, then, four hydraulic cylinders 200 on the top surface of the processing table 100 drive a clamping assembly 400 to move towards the center position of the top of the processing table 100, so that the workpiece is clamped, the workpiece is positioned at the center position of the processing table 100, meanwhile, in the clamping process of the workpiece, the side surfaces of the workpiece are not all of a plane structure, and the side surfaces of the workpiece are in arc shapes or irregular shapes, so that when the workpiece is clamped, the workpiece can be clamped according to the shape of the side surfaces of the workpiece, when the clamping assembly 400 is abutted against the side surfaces of the workpiece, the hydraulic cylinders 200 drive the clamping assembly 400 to move, at the moment, the inner side surfaces of the clamping assembly 400 are abutted against the workpiece, and meanwhile, due to the characteristic of the shape of the side surfaces of the workpiece, the sliding piece 404 slides along the inside of a first sliding groove 403 through a first sliding block 402, so that the sliding piece 404 is abutted against the position of the side surfaces of the workpiece, and then, in the second sliding block 407 outside the semicircular rubber piece 405 slides along the inside of the second sliding groove 408, so that the position of a possible edge angle and the like on the outer side surface is subjected to adaptive adjustment, so that when the workpiece is clamped, so that the workpiece is clamped, and the workpiece is convenient to be clamped, and the workpiece is easy to process, and the workpiece is not processed, and the workpiece and is convenient to be processed;

it should be noted that the first slider 402 and the second slider 407 slide along the inside of the first chute 403 and the second chute 408, because when the sliding member 404 collides with irregular sides, for example: when the side surface of the workpiece has a larger edge angle, in the case that the hydraulic cylinder 200 pushes the clamping assembly 400 to move, the sliding member 404 relatively rotates adaptively with the edge angle as a pivot, so that the first sliding block 402 can slide along the inside of the first sliding groove 403, and similarly, after the first sliding block 402 slides adaptively, if the edge angle exists at the covered workpiece position, the semicircular rubber member 405 also rotates adaptively, so that the second sliding block 407 can slide in the inside of the second sliding groove 408.

Claims (4)

1. CNC adds clamping apparatus, including processing platform (100) and processing platform (100) top four sides position department vertical fixed plate (300) and fixed plate (300) outside hydraulic cylinder (200) of assembly, wherein the output of hydraulic cylinder (200) extends to the opposite side of fixed plate (300) and fixedly connected with clamp assembly (400), its characterized in that, clamp assembly (400) include:

The arc-shaped fixed block (401) is fixed at the output end of the hydraulic cylinder (200), and a first chute (403) is formed along the arc surface at the middle position of the inner side of the arc-shaped fixed block (401) in the height direction;

The sliding piece (404) is arranged on the inner side of the arc-shaped fixed block (401), a first sliding block (402) capable of sliding along the inner part of the first sliding groove (403) is fixed on the outer side surface of the sliding piece (404), semicircular grooves (409) are formed in the inner side of the sliding piece (404) at equal intervals along the length direction of the sliding piece, and second sliding grooves (408) are formed in the sliding piece (404) on the inner side of the semicircular grooves (409);

The semicircular rubber part (405) is arranged in the semicircular groove (409), a second sliding block (407) capable of sliding along the second sliding groove (408) is fixed on the outer side surface of the semicircular rubber part, and arc grooves (406) are symmetrically formed in the other side of the semicircular rubber part (405).

2. The CNC machining fixture of claim 1, wherein the inside surfaces of the slider (404) except for the semicircular grooves (409) are each bonded with a rubber pad.

3. The CNC machining fixture according to claim 1, wherein the outer side of the slider (404) is distributed in an arc structure matching the inner side of the arc-shaped fixing block (401), and the inner side of the slider (404) is distributed in a plane structure.

4. The CNC machining fixture of claim 1, wherein the first runner (403), the first slider (402), the second runner (408), and the second slider (407) are all distributed in a T-shaped configuration in cross section.