CN213438334U

CN213438334U - Adjustable multifunctional clamp for machining

Info

Publication number: CN213438334U
Application number: CN202022415893.XU
Authority: CN
Inventors: 王永强; 王瑞东; 李敏
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-06-15
Anticipated expiration: 2030-10-27

Abstract

The utility model discloses an adjustable multifunctional clamp for machining, which comprises a plurality of positioning pieces, one end of the positioning piece is fixedly connected with a device shell, the surfaces far away from the two device shells are fixedly connected with a limiting cylinder, a through hole is arranged in the limiting cylinder, a first threaded rod penetrates through the through hole and is connected with the through hole in a sliding manner, a driving mechanism is arranged in the device shell, the first threaded rods penetrate through the surface of the device shell, clamping plates are fixedly connected to the ends, far away from each other, of the two first threaded rods, clamping pieces are fixedly connected to the ends, close to each other, of the two first threaded rods, a groove is arranged in the clamping piece, a second threaded rod penetrates through the side wall of the clamping piece and is connected with the clamping piece in a rotating way, a first limiting groove is formed in the inner surface of the clamping piece, and two L-shaped rods which are symmetrically arranged are connected in the first limiting groove in a sliding mode. The utility model discloses a set up first threaded rod, improve anchor clamps's suitability to set up the second threaded rod, realize that a thing is multi-purpose.

Description

Adjustable multifunctional clamp for machining

Technical Field

The utility model relates to a machining technical field especially relates to an adjustable multifunctional clamp for machining.

Background

The clamp is classified according to the universality and can be divided into a universal clamp, a special clamp, a grouped clamp and a combined clamp, wherein the universal clamp is a clamp which can be used for installing two or more than two workpieces to process, such as a three-jaw self-centering chuck and a four-jaw single-action chuck on a lathe, flat tongs used on a milling machine, an electromagnetic chuck used on a grinding machine and the like, the special clamp is a clamp specially designed and manufactured aiming at a certain process of a certain workpiece and is suitable for large-scale mass production, the grouped clamp is a clamp suitable for processing a group of parts, generally the same type of parts, and a group of parts are positioned and clamped through adjustment (such as replacement and addition of some elements), the combined clamp is formed by combining a plurality of standard parts, can be assembled according to the requirements of the part processing process, can be disassembled after use, can be used for single-piece small-batch production, and is classified according to the types of the machine tool, Drilling machine clamp, milling machine clamp, grinding machine clamp, key bed clamp, combined machine tool, clamp for machining center, etc.

The special fixture is a fixture specially designed and manufactured aiming at a certain procedure of a certain workpiece, the specification is certain, the special fixture is suitable for mass production, and for manufacturers of small-batch production or machining enthusiasts, a device with a replaceable clamping head is designed on the fixture, certain cost can be reduced, the use is more convenient, and a certain part is hollowed out, the surface of the part is an arc-shaped part, and the part is not suitable for clamping from outside to inside, so that the adjustable multifunctional fixture for machining of a bidirectional clamping part needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the machining is poor with anchor clamps suitability among the prior art, and the adjustable multifunctional clamp is used in machining who proposes a be applicable to multiple object.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an adjustable multifunctional clamp for machining comprises a plurality of positioning pieces, wherein one end of each positioning piece is fixedly connected with a device shell, the surfaces far away from the two device shells are fixedly connected with a limiting barrel, a through hole is arranged in the limiting cylinder, a first threaded rod penetrates through the through hole and is connected with the through hole in a sliding manner, a driving mechanism is arranged in the device shell, the first threaded rods penetrate through the surface of the device shell, clamping plates are fixedly connected to the ends, far away from each other, of the two first threaded rods, clamping pieces are fixedly connected to the ends, close to each other, of the two first threaded rods, a groove is arranged in the clamping piece, a second threaded rod penetrates through the side wall of the clamping piece and is connected with the clamping piece in a rotating way, the clamping piece is characterized in that a first limiting groove is formed in the inner surface of the clamping piece, two L-shaped rods which are symmetrically arranged are connected in the first limiting groove in a sliding mode, and threaded holes are formed in the L-shaped rods and are in threaded connection with a second threaded rod.

Preferably, the driving mechanism comprises sleeves rotatably connected to the inner surface of the device shell, the sleeves are in threaded connection with the first threaded rod, a first bevel gear is fixedly connected to one end, close to the two sleeves, of the two sleeves, a rotating shaft penetrates through the side wall of the device shell and is rotatably connected to the side wall of the device shell, a second bevel gear is fixedly connected to one end, located in the device shell, of the rotating shaft, and the first bevel gear is meshed with the second bevel gear.

Preferably, the second limiting grooves are formed in two sides of the first threaded rod, two symmetrically-arranged protruding blocks are arranged in the through hole, and the protruding blocks are connected with the second limiting grooves in a sliding mode.

Preferably, one end of the second threaded rod is fixedly connected with a first knob.

Preferably, one end of the rotating shaft, which is located outside the device shell, is fixedly connected with a second knob.

Preferably, a smooth coating is coated in the first limiting groove.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses a set up first threaded rod, make anchor clamps both can the centre gripping from inside to outside, also can outside-in centre gripping, realize that a thing is multi-purpose to can adjust according to the width of object, improve its suitability.

2. The utility model discloses a set up second threaded rod and L shape pole, realize the installation of different specification holding heads, make anchor clamps be applicable to the object of different appearances, realize that a thing is multi-purpose.

To sum up, the utility model discloses a set up first threaded rod, realize the regulation of clamping piece, improve the suitability of anchor clamps to set up the second threaded rod, realize that a thing is multi-purpose.

Drawings

Fig. 1 is a schematic structural view of an adjustable multifunctional clamp for machining when clamping from inside to outside;

FIG. 2 is a schematic structural view of the adjustable multifunctional clamp for machining when clamping from outside to inside;

FIG. 3 is a schematic view of the internal structure of the device housing of the adjustable multifunctional clamp for machining according to the present invention;

fig. 4 is a schematic view of an internal structure of a limiting cylinder in the adjustable multifunctional clamp for machining according to the present invention;

fig. 5 is the utility model provides a structural schematic of the L-shaped rod in the adjustable multifunctional clamp for machining.

In the figure: the device comprises a positioning piece 1, a device shell 2, a limiting barrel 3, a first threaded rod 4, a clamping piece 5, a sleeve 6, a first bevel gear 7, a second bevel gear 8, a rotating shaft 9, a groove 10, a second threaded rod 11, a first limiting groove 12, an L-shaped rod 13, a first knob 14, a second knob 15, a through hole 16, a protruding block 17, a second limiting groove 18 and a clamping plate 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-5, an adjustable multifunctional fixture for machining comprises a plurality of positioning members 1, one end of each positioning member 1 is fixedly connected with a device shell 2, the surface of each two device shells 2 away from each other is fixedly connected with a limiting cylinder 3, a through hole 16 is formed in each limiting cylinder 3, a first threaded rod 4 penetrates through each through hole 16 and is slidably connected with each through hole, the fixture can be clamped from inside to outside or from outside to inside by arranging the first threaded rod 4, so that multiple purposes of one object can be realized, the fixture can be adjusted according to the width of the object, the applicability of the fixture is improved, it should be noted that two limiting grooves 18 are formed in two sides of each first threaded rod 4, two symmetrically-arranged protruding blocks 17 are arranged in each through hole 16, the protruding blocks 17 are slidably connected with the second limiting grooves 18, a driving mechanism is arranged in each device shell 2, and the driving mechanism comprises a sleeve 6 rotatably connected to the inner surface of the device shell 2, the sleeves 6 are in threaded connection with the first threaded rod 4, the first bevel gears 7 are fixedly connected to the ends, close to the two sleeves 6, of the two sleeves, the rotating shaft 9 penetrates through the side wall of the device shell 2 and is rotatably connected to the side wall of the device shell 2, and it should be noted that the second knob 15 is fixedly connected to the end, located outside the device shell 2, of the rotating shaft 9.

In the utility model, one end of the rotating shaft 9 in the device shell 2 is fixedly connected with a second bevel gear 8, a first bevel gear 7 is meshed with the second bevel gear 8, the first threaded rod 4 penetrates through the surface of the device shell 2, one end of the two first threaded rods 4 far away from is fixedly connected with a clamping plate 19, one end of the two first threaded rods 4 close to is fixedly connected with a clamping part 5, a groove 10 is arranged in the clamping part 5, the side wall of the clamping part 5 is rotatably connected with a second threaded rod 11 in a penetrating way, notably, one end of the second threaded rod 11 is fixedly connected with a first knob 14, the inner surface of the clamping part 5 is provided with a first limiting groove 12, the first limiting groove 12 is coated with smooth paint, two L-shaped rods 13 which are symmetrically arranged are slidably connected in the first limiting groove 12, through arranging the second threaded rod 11 and the L-shaped rods 13, the installation of clamping heads with different specifications, the clamp is suitable for objects with different shapes, one object is multipurpose, and the L-shaped rod 13 is internally provided with a threaded hole and is in threaded connection with the second threaded rod 11.

The utility model discloses its functional principle is explained to following mode of operation of accessible: under the normal condition, the clamp adopts a mode of clamping an object from outside to inside, when parts with hollow middle parts and arc-shaped surfaces need to be clamped, the mode of clamping the object from inside to outside needs to be adopted, and the mode of clamping the object from inside to outside has certain defects, namely when the object exceeds a certain size, the clamp cannot clamp the object, so that the resource waste is caused, therefore, the clamp head needs to be adjusted, the second knob 15 is rotated to sequentially drive the second bevel gear 8, the first bevel gear 7 and the sleeve 6 to rotate, the two first threaded rods 4 are driven to slide along the direction away from each other, the clamping range of the clamp can be expanded, the applicability of the clamp is improved, in the initial state, the surface of the clamp head is a plane, the clamp is convenient to clamp the blocky object, when the surface of the object to be clamped is arc-shaped, the clamp is not applicable any more, the first knob 14 is rotated to drive the second, thereby drive two L shape poles 13 and keep away from mutually, take off original centre gripping head after, trade the centre gripping head that the upper surface is the cambered surface and the first knob 14 of antiport, drive second threaded rod 11 antiport to drive two L shape poles 13 and be close to mutually, realize the installation of different surface centre gripping heads, make anchor clamps be applicable to the object of different appearances, realize that a thing is multi-purpose.

The above, 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. The adjustable multifunctional clamp for machining comprises a plurality of positioning pieces (1) and is characterized in that one end of each positioning piece (1) is fixedly connected with a device shell (2), two surface fixing parts, far away from the device shell (2), of each device shell are fixedly connected with a limiting barrel (3), a through hole (16) is formed in each limiting barrel (3), a first threaded rod (4) penetrates through the through hole (16) in a sliding manner, a driving mechanism is arranged in each device shell (2), the first threaded rod (4) penetrates through the surface of each device shell (2), two end fixing parts, far away from the first threaded rod (4), of each first threaded rod (4), two end fixing parts (5) close to each other, a groove (10) is formed in each clamping part (5), and the side wall of each clamping part (5) penetrates through and is rotatably connected with a second threaded rod (11), first spacing groove (12) have been seted up to the internal surface of clamping piece (5), sliding connection has two L shape poles (13) that the symmetry set up in first spacing groove (12), be equipped with the screw hole in L shape pole (13) and with second threaded rod (11) threaded connection.

2. The adjustable multifunctional clamp for machining according to claim 1, wherein the driving mechanism comprises a sleeve (6) rotatably connected to the inner surface of the device shell (2), the sleeve (6) is in threaded connection with the first threaded rod (4), a first bevel gear (7) is fixedly connected to one end of the two sleeves (6) close to each other, a rotating shaft (9) is rotatably connected to the side wall of the device shell (2) in a penetrating manner, a second bevel gear (8) is fixedly connected to one end of the rotating shaft (9) located in the device shell (2), and the first bevel gear (7) is meshed with the second bevel gear (8).

3. The adjustable multifunctional clamp for machining according to claim 1, wherein second limiting grooves (18) are formed in two sides of the first threaded rod (4), two symmetrically-arranged protruding blocks (17) are arranged in the through hole (16), and the protruding blocks (17) are slidably connected with the second limiting grooves (18).

4. Adjustable multi-function clamp for machining according to claim 1, characterized in that one end of said second threaded rod (11) is fixedly connected with a first knob (14).

5. Adjustable multi-function clamp for machining according to claim 2, characterized in that a second knob (15) is fixedly connected to the end of the rotation shaft (9) located outside the device housing (2).

6. The adjustable multifunctional clamp for machining according to claim 1, characterized in that the first limiting groove (12) is coated with a smooth coating.