CN113021205A

CN113021205A - Firm and laborsaving centre gripping frock

Info

Publication number: CN113021205A
Application number: CN202110274229.4A
Authority: CN
Inventors: 季云杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2021-06-25

Abstract

The invention provides a firm and labor-saving clamping tool, relates to the technical field of clamping tools, and solves the problems that the existing bench clamp cannot be quickly assembled and disassembled according to actual use requirements in the actual application process, a tubular workpiece can be damaged when a planar chuck clamps the tubular workpiece, and the work efficiency is low due to time and labor waste in the clamping process.

Description

Firm and laborsaving centre gripping frock

Technical Field

The invention belongs to the technical field of clamping tools, and particularly relates to a firm and labor-saving clamping tool.

Background

Bench vice, also known as vice, bench vice, is a kind of tool to grasp, fix the work piece in order to process, use very extensively, its variety is also more, bench vice is the necessary tool of bench worker, also name source reason of bench worker, because most work of bench worker is finished on bench vice, such as saw, file, chisel, and assembly and dismantlement of the part;

the bench clamp needs manual hand-cranking to clamp the workpiece when clamping the workpiece, but generally needs to repeatedly rotate a hand wheel or a rotating handle to clamp the workpiece in the clamping process, so that the clamping operation is laborious.

For example, application No.: the invention discloses CN201410514556.2 a quick-acting multipurpose bench vice, which comprises a movable vice body, a screw rod, a fixed vice body, a support, an end cover and a quick-acting device, wherein the movable vice body is provided with the screw rod meshed with a nut; a torsion spring is sleeved on the rotating shaft; the nut handle sleeved with the spring and the nut are of an integral structure; the screw nut and the screw nut handle are arranged along the radial direction and are vertical to the screw rod arranged along the axial direction; pressing the wing and pulling the handle can separate the screw nut and the screw rod thread; the handle is released, and the screw nut and the screw rod can be engaged in a threaded manner under the action of the spring and the torsion spring. The invention not only has all functions of common multi-purpose bench vice, but also increases the quick movement function of the movable vice body and the quick movement function of quickly pushing the movable vice body when the screw rod is engaged with the screw nut, and has convenient and flexible operation, high working efficiency and low labor intensity.

Based on the search of the above patent and the discovery of combining the equipment in the prior art, the above equipment can clamp the workpiece, but in the practical application process, the installation and disassembly of the bench vice which cannot be quickly assembled according to the actual use needs exist, the flat chuck can damage the tubular workpiece when clamping the tubular workpiece, and the time and labor are wasted in the clamping process, so that the working efficiency is low.

Disclosure of Invention

In order to solve the technical problems, the invention provides a firm and labor-saving clamping tool, which aims to solve the problems that the existing bench clamp cannot be quickly assembled and disassembled according to actual use requirements in the actual application process, a tubular workpiece is damaged when a flat chuck clamps the tubular workpiece, and the working efficiency is low due to time and labor waste in the clamping process.

The invention relates to a firm and labor-saving clamping tool, which is realized by the following specific technical means:

a firm and labor-saving clamping tool comprises a steering mechanism and a fixed clamping mechanism, wherein the steering mechanism is fixedly connected to the top end position of a bearing clamping mechanism; the fixed clamping mechanism is fixedly connected to the top end face of the steering mechanism, and the movable clamping mechanism is connected to the right side of the fixed clamping mechanism in a sliding mode through the labor-saving clamping mechanism; the movable clamping mechanism comprises a movable chuck, a sliding block, a threaded sleeve and an arc-surface clamping plate, the sliding block is fixedly connected with the front end face and the rear end face of the inner side of the movable chuck, the threaded sleeve is fixedly connected with the center of the bottom end face of the movable chuck, the arc-surface clamping plate is screwed at the left end position of the movable chuck through a bolt, and the movable chuck is connected in sliding grooves formed in the front side and the rear side of the base through the sliding block in a sliding mode in an installation state.

Furthermore, the bearing and clamping mechanism comprises a fixed disc, a stabilizer, fixed blocks and a limiting screw rod, the fixed disc is provided with two positions, the two fixed discs are fixedly connected through the stabilizer, the fixed blocks are provided with eight positions, wherein each four fixed blocks are one group, the two fixed blocks are respectively fixedly connected to the outer peripheral surfaces of the two fixed discs in an annular array manner, and the limiting screw rod is screwed in the two fixed blocks;

furthermore, the steering mechanism comprises a worm, a worm wheel and an inner ratchet wheel, the worm wheel is meshed and driven at the right end of the worm, and the inner ratchet wheel is arranged inside the worm wheel;

furthermore, the steering mechanism further comprises a connecting column and a turntable, the connecting column is fixedly connected to the top end face of the inner ratchet wheel, the turntable is fixedly connected to the top end face of the connecting column, and the worm is rotatably connected to the right side of the outer peripheral face of the fixed disc located on the upper side in the mounting state;

furthermore, the labor-saving clamping mechanism comprises a hand wheel, a rotating handle and a transmission shaft, wherein the rotating handle is fixedly connected to the front end face of the hand wheel, and the transmission shaft is fixedly connected to the center of the rear end face of the hand wheel;

furthermore, the labor-saving clamping mechanism also comprises a driving gear and a driven gear, the driving gear is fixedly connected to the rear end position of the transmission shaft, the driven gear is meshed and transmitted on the left lower side of the driving gear, the diameter of the outer wall of the driving gear is four times of that of the driven gear, and the hand wheel is connected to the left end face of the base through the transmission shaft in a shaft joint mode in the installation state;

further, fixed clamping mechanism is including base, clamping screw, fixed chuck and plane splint, the base is inside hollow structure design, and the preceding terminal surface and the rear end of base have all seted up the spout, clamping screw rotates the inboard position of connecting at the base, fixed chuck fixed connection is in the top face left side position of base, and the right side of fixed chuck has connect plane splint through the bolt is twisted, and base fixed connection is in the top face position of carousel under the installation state.

Compared with the prior art, the invention has the following beneficial effects:

in the invention, after the two fixed disks are clamped with the tabletop, the two fixed disks can be fixedly clamped by screwing the limiting screw rods into the screw holes formed in the fixed disks, so that the bench clamp can be quickly disassembled and assembled when the bench clamp needs to be temporarily fixed, the working efficiency can be greatly improved, and the traditional bench clamp can not perform autonomous steering operation after a workpiece is clamped, so that an operator needs to continuously move the position of the bench clamp when in use, and the bench clamp is inconvenient to use, while in the invention, a connecting column and a turntable are driven to rotate by meshing transmission of a worm in a manual rotation steering mechanism, and an inner ratchet wheel is fixedly connected with the bottom end surface of the connecting column, so that only unidirectional rotation operation and self-locking can be realized, and on the other hand, the clamping screw rods are driven to rotate by meshing transmission of a driving gear and a driven gear, and because the diameter of the driving gear is greater than that of the driven gear, the driving gear can rotate more laborsavingly to achieve the purpose of improving the working efficiency, and a plane clamping plate or an arc clamping plate can be selected to be used on the inner sides of the movable chuck and the fixed chuck according to actual requirements to prevent the workpiece from being damaged by clamping.

Drawings

Fig. 1 is a left side view schematically showing the structure of the present invention in a half-section state.

Fig. 2 is a right side view of the structure of the present invention in a half-section state.

Fig. 3 is a schematic front view of the present invention in a half-section state.

Fig. 4 is an axial view of the present invention in a half-section state.

Fig. 5 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

Fig. 6 is an enlarged view of the structure of fig. 4B according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a load bearing and clamping mechanism; 101. fixing the disc; 102. a stabilizer; 103. a fixed block; 104. a limit screw; 2. a steering mechanism; 201. a worm; 202. a worm gear; 203. an inner ratchet wheel; 204. connecting columns; 205. a turntable; 3. a labor-saving clamping mechanism; 301. a hand wheel; 302. turning a handle; 303. a drive shaft; 304. a drive gear; 305. a driven gear; 4. fixing the clamping mechanism; 401. a base; 402. clamping the screw rod; 403. fixing the chuck; 404. a planar splint; 5. a movable clamping mechanism; 501. a movable chuck; 502. a slider; 503. a threaded sleeve; 504. a cambered surface splint.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 6:

the invention provides a firm and labor-saving clamping tool, which comprises: the steering mechanism 2 is fixedly connected to the top end of the bearing and clamping mechanism 1; the fixed clamping mechanism 4 is fixedly connected to the top end face of the steering mechanism 2, and the movable clamping mechanism 5 is slidably connected to the right side of the fixed clamping mechanism 4 through the labor-saving clamping mechanism 3; the movable clamping mechanism 5 comprises a movable chuck 501, a sliding block 502, a threaded sleeve 503 and an arc clamping plate 504, wherein the front end surface and the rear end surface of the inner side of the movable chuck 501 are fixedly connected with the sliding block 502, the central position of the bottom end surface of the movable chuck 501 is fixedly connected with the threaded sleeve 503 and comprises a worm 201, a worm wheel 202 and an inner ratchet wheel 203, the right end of the worm 201 is meshed with the worm wheel 202 in a transmission manner, and the inner ratchet wheel 203 is arranged in the worm wheel 202; the cambered clamping plate 504 is screwed at the left end of the movable chuck 501 through a bolt, and the movable chuck 501 is connected in sliding ways in the sliding grooves formed in the front side and the rear side of the base 401 through the sliding blocks 502 in the installation state.

The bearing and clamping mechanism 1 comprises a fixed disc 101, a stabilizer 102, fixed blocks 103 and limiting screws 104, the fixed disc 101 is provided with two positions, the two fixed discs 101 are fixedly connected with each other through the stabilizer 102, the fixed blocks 103 are provided with eight positions, each four fixed blocks 103 are a group, the two fixed blocks 103 are respectively fixedly connected to the peripheral surfaces of the two fixed discs 101 in an annular array mode, and the limiting screws 104 are screwed inside the two fixed blocks 103.

The steering mechanism 2 further comprises a connecting column 204 and a turntable 205, the connecting column 204 is fixedly connected to the top end face of the inner ratchet wheel 203, the turntable 205 is fixedly connected to the top end face of the connecting column 204, and the worm 201 is rotatably connected to the right side of the outer peripheral face of the fixed disc 101 located on the upper side in the mounting state.

The labor-saving clamping mechanism 3 comprises a hand wheel 301, a rotating handle 302 and a transmission shaft 303, wherein the rotating handle 302 is fixedly connected to the front end face of the hand wheel 301, and the transmission shaft 303 is fixedly connected to the center of the rear end face of the hand wheel 301.

The labor-saving clamping mechanism 3 further comprises a driving gear 304 and a driven gear 305, the driving gear 304 is fixedly connected to the rear end position of the transmission shaft 303, the driven gear 305 is meshed and transmitted on the left lower side of the driving gear 304, the diameter of the outer wall of the driving gear 304 is four times of that of the driven gear 305, and the hand wheel 301 is connected to the left end face of the base 401 through the transmission shaft 303 in a shaft coupling mode.

Wherein, fixed clamping mechanism 4 is including base 401, clamping screw 402, collet 403 and flat splint 404, base 401 is inside hollow structure design, and base 401's preceding terminal surface and rear end have all seted up the spout, clamping screw 402 rotates the inboard position of connecting at base 401, collet 403 fixed connection is in base 401's top terminal surface left side position, and collet 403's right side has connect flat splint 404 through the bolt is screwed, base 401 fixed connection is in the top terminal surface position of carousel 205 under the installation status, all can select flat splint 404 or cambered surface splint 504 to use according to actual need in the inboard of activity chuck 501 and collet 403, in order to reach the condition that prevents to press from both sides bad work piece and appear.

When in use: when the bench clamp needs to be temporarily fixed, two fixed disks 101 in the bearing and clamping mechanism 1 can be expanded through a stabilizer 102 and then clamped with a table top to be processed, after the two fixed disks 101 are clamped with the table top, the two fixed disks 101 can be fixedly clamped in screw holes formed in the fixed blocks 103 through a limiting screw 104, so that the bench clamp can be quickly disassembled and assembled when the bench clamp needs to be temporarily fixed, the working efficiency can be greatly improved, and the traditional bench clamp cannot be subjected to autonomous steering operation after a workpiece is clamped, so that an operator needs to continuously move the position of the operator when in use, and the use is inconvenient, while in the invention, the worm 201 in the steering mechanism 2 can be manually rotated, and the connecting column 204 and the turntable 205 are driven to rotate through meshing transmission with the worm gear 202, moreover, because the bottom end surface of the connecting column 204 is fixedly connected with the inner ratchet wheel 203, only unidirectional rotation operation and self-locking can be realized;

on the other hand, when a workpiece needs to be clamped, the hand wheel 301 can be rotated by manually gripping the rotating handle 302, the clamping screw 402 is driven to rotate through the meshing transmission of the driving gear 304 and the driven gear 305, and the driving gear 304 has a diameter larger than that of the driven gear 305, so that the aim of improving the working efficiency can be achieved, and the planar clamping plate 404 or the cambered clamping plate 504 can be selected to be used on the inner sides of the movable clamping head 501 and the fixed clamping head 403 according to actual requirements, so that the workpiece is prevented from being damaged by clamping.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a firm and laborsaving centre gripping frock which characterized in that: the steering mechanism (2) is fixedly connected to the top end of the bearing and clamping mechanism (1); the fixed clamping mechanism (4) is fixedly connected to the top end face of the steering mechanism (2), and the movable clamping mechanism (5) is slidably connected to the right side of the fixed clamping mechanism (4) through the labor-saving clamping mechanism (3); the movable clamping mechanism (5) comprises a movable chuck (501), a sliding block (502), a threaded sleeve (503) and an arc-surface clamping plate (504), wherein the sliding block (502) is fixedly connected to the front end face and the rear end face of the inner side of the movable chuck (501), the threaded sleeve (503) is fixedly connected to the center of the bottom end face of the movable chuck (501), the arc-surface clamping plate (504) is screwed at the left end of the movable chuck (501) through a bolt, and the movable chuck (501) is connected to the sliding grooves formed in the front side and the rear side of the base (401) in a sliding mode through the sliding block (502) in the installation state.

2. The firm and laborsaving centre gripping frock of claim 1 characterized in that: bear clamping mechanism (1) including fixed disk (101), stabilizer (102), fixed block (103) and stop screw (104), fixed disk (101) are equipped with two places altogether, and the passing through of two fixed disks (101) stabilizer (102) looks fixed connection, fixed block (103) are equipped with eight places altogether, and wherein every four fixed blocks (103) are a set of, and two sets of fixed blocks (103) are the outer peripheral face position of annular array fixed connection in two fixed disks (101) respectively to the inside of two sets of fixed blocks (103) is twisted and is connect stop screw (104).

3. The firm and laborsaving centre gripping frock of claim 1 characterized in that: steering mechanism (2) are including worm (201), worm wheel (202) and interior ratchet (203), the right-hand member meshing transmission of worm (201) has worm wheel (202), and the internally mounted of worm wheel (202) has interior ratchet (203).

4. The firm and laborsaving centre gripping frock of claim 3, characterized in that: steering mechanism (2) still including spliced pole (204) and carousel (205), spliced pole (204) fixed connection is in the top terminal surface position of interior ratchet (203), and the top terminal surface fixedly connected with carousel (205) of spliced pole (204), and worm (201) rotate under the mounted state and connect the peripheral face right side position at the fixed disk (101) that is located the upside.

5. The firm and laborsaving centre gripping frock of claim 1 characterized in that: laborsaving clamping mechanism (3) are including hand wheel (301), change handle (302) and transmission shaft (303), the preceding terminal surface fixedly connected with of hand wheel (301) changes handle (302), transmission shaft (303) fixed connection is put at the rear end face central point of hand wheel (301).

6. The firm and laborsaving centre gripping frock of claim 5 characterized in that: laborsaving clamping mechanism (3) are still including drive gear (304) and driven gear (305), drive gear (304) fixed connection is in the rear end position of transmission shaft (303), and the left downside meshing transmission of drive gear (304) has driven gear (305) to the outer wall diameter of drive gear (304) is four times driven gear (305), and hand wheel (301) pass through transmission shaft (303) coupling under the installation state and are in the left end face position of base (401).

7. The firm and laborsaving centre gripping frock of claim 1 characterized in that: fixed clamping mechanism (4) are including base (401), clamping screw (402), fixed chuck (403) and plane splint (404), base (401) are the design of inside hollow structure, and the preceding terminal surface and the rear end of base (401) have all seted up the spout, clamping screw (402) rotate the inboard position of connection at base (401), fixed chuck (403) fixed connection has connect plane splint (404) in the top end face left side position of base (401), and the right side of fixed chuck (403) has passed through the bolt and has twisted, and base (401) fixed connection is in the top end face position of carousel (205) under the installation state.