CN112720764A

CN112720764A - Convenient carpenter of furniture production presss from both sides dress instrument

Info

Publication number: CN112720764A
Application number: CN202110107989.6A
Authority: CN
Inventors: 车琳洁
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-04-30

Abstract

The invention discloses a convenient woodworking clamping tool for furniture production, which comprises a main body, a first belt shaft gear, a second belt shaft gear, a third belt shaft gear, a first support shaft, a second support shaft, a third support shaft, a first gear, a second gear, a third gear, a lower clamping part, an upper clamping part and a locking part, wherein the main body is hollow, and the inner wall of the upper part of the main body is rotatably connected with a plurality of vertical first belt shaft gears through bearings. The invention mainly utilizes the engagement between gears for transmission, and can control whether the ball head upper clamping seat and the ball head lower clamping seat move up and down in a coordinated manner by adjusting the position of the transmission belt shaft gear, so that whether the ball head upper clamping seat and the ball head lower clamping seat rapidly clamp can be selected according to space environment and use requirements, time is reduced for adjusting tightness, and the upper U-shaped pin and the lower U-shaped pin which can adjust the positions can adjust whether the ball head upper clamping seat and the ball head lower clamping seat can rotate in a spherical surface manner, thereby being suitable for the clamping between parallel planes or the clamping between non-parallel planes.

Description

Convenient carpenter of furniture production presss from both sides dress instrument

Technical Field

The invention relates to a clamp, in particular to a convenient woodworking clamping tool for furniture production.

Background

The carpenter's clamp is a necessary tool for carpenter's activity, has simple structure and flexible use, is a good helper for carpenter's activity, and can be generally divided into F-shaped carpenter's clamp, G-shaped carpenter's clamp and A-shaped carpenter's clamp according to the appearance characteristics. The G-shaped carpenter clamp is wide in application range, convenient to carry, capable of freely adjusting the range to be clamped and large in clamping force due to the adoption of the screw thread precession type design. Usually forged from high carbon steel.

Traditional G type carpenter presss from both sides simple structure, mainly reach the purpose of control elasticity through the lead screw bolt of rotatory its bottom, so its elasticity regulation's speed depends on the pitch of the bolt of lead screw completely, and every G type carpenter presss from both sides often only possesses a lead screw bolt, thereby make the elasticity regulation slow, and traditional G type carpenter presss from both sides the elasticity between the plane that can only control two parallels, when meetting crossing plane, if do not fasten by accident, then probably can cause the damage on object surface, and often can not play good clamping effect to the two planes that the contained angle is slightly big, traditional carpenter's press from both sides weak point has been highlighted.

Disclosure of Invention

The invention aims to provide a convenient woodworking clamping tool for furniture production, and aims to solve the technical problem.

In order to achieve the purpose, the invention adopts the following technical scheme:

a convenient woodworking clamping tool for furniture production comprises a main body, a first belt shaft gear, a second belt shaft gear, a third belt shaft gear, a first support shaft, a second support shaft, a third support shaft, a first gear, a second gear, a third gear, a lower clamping part, an upper clamping part and a locking part, wherein the main body is hollow, the inner wall of the upper part of the main body is rotatably connected with a plurality of vertical first belt shaft gears through bearings, the inner wall of the lower part of the main body is rotatably connected with a plurality of vertical second belt shaft gears and a plurality of vertical third belt shaft gears through bearings, each first belt shaft gear is horizontally arranged on the upper part of the main body and is meshed with each other, each second belt shaft gear is horizontally arranged on the lower part of the main body and is meshed with each other, each third belt shaft gear is horizontally arranged on the lower part of the main body and is meshed with each other, the inner wall of the upper part of the main body is rotatably connected with a vertical first support shaft through bearings, the utility model discloses a locking device, including main part, main part lower part inner wall, main part right part are connected with a vertical No. two back shafts through the bearing rotation, a back shaft upper portion is fixed with a horizontally gear, No. two back shaft lower parts are fixed with a horizontally gear No. two, No. three back shaft upper and lower two parts respectively are fixed with a horizontally gear No. three, the main part lower part is fixed with clamping part once, and main part upper portion is fixed with an upper clamping part, the main part bottom is fixed with a locking part.

On the basis of the technical scheme, the lower clamping part comprises a first lower rack shell, a second lower rack shell, a third lower rack shell, a fourth lower rack shell, a second lower gear, a third lower gear, a fourth lower belt shaft gear, a lower U-shaped pin, a first lower positioning hole, a second lower positioning hole, a ball head lower clamping seat, a third lower positioning hole, a lower rack frame and a lower positioning pin, wherein the top end of the lower part of the main body is fixedly provided with the vertical first lower rack shell, the vertical second lower rack shell is connected inside the first lower rack shell in a sliding manner, the vertical third lower rack shell is connected inside the second lower rack shell in a sliding manner, the vertical fourth lower rack shell is connected inside the third lower rack shell in a sliding manner, the vertical second lower rack shell is connected with the left lower gear through bearings in a rotating manner, and the left part and the right part of the third lower rack shell are respectively connected with the vertical third lower gear through bearings in a rotating manner, the upper portion of the fourth lower rack shell is connected with a horizontal fourth lower belt shaft gear in a rotating mode through a bearing, a horizontal lower U-shaped pin is inserted into the middle of the fourth lower belt shaft gear, a horizontal first lower positioning hole penetrates through the upper portion of the fourth lower rack shell, a horizontal second lower positioning hole penetrates through the right portion of the fourth lower rack shell, a vertical bulb lower clamping seat is rotatably connected to the spherical surface of the upper portion of the fourth lower rack shell, a vertical third lower positioning hole is formed in the bottom of the bulb lower clamping seat, a vertical lower rack is slidably connected inside the fourth lower rack shell, and a vertical lower positioning pin is fixed to the top end of the lower rack.

On the basis of the technical scheme, the upper clamping part comprises a first upper rack shell, a second upper rack shell, a third upper rack shell, a fourth upper rack shell, a second upper gear, a third upper gear, a fourth upper belt shaft gear, an upper U-shaped pin, a first upper positioning hole, a second upper positioning hole, a ball head upper clamping seat, a third upper positioning hole, an upper rack and an upper positioning pin, wherein the bottom end of the upper part of the main body is fixedly provided with the vertical first upper rack shell, the first upper rack shell is connected with the vertical second upper rack shell in a sliding manner, the second upper rack shell is connected with the vertical third upper rack shell in a sliding manner, the third upper rack shell is connected with the vertical fourth upper rack shell in a sliding manner, the left part and the right part of the second upper rack shell are respectively connected with the vertical second upper gear in a rotating manner through bearings, and the left part and the right part of the third upper rack shell are respectively connected with the vertical third upper gear through the bearings, the upper rack shell comprises a first upper rack shell and a second upper rack shell, wherein the first upper rack shell is connected with the lower portion of the first upper rack shell through a bearing, the second upper rack shell is connected with the lower portion of the second upper rack shell through a bearing, the first upper rack shell is connected with the lower portion of the second upper rack shell through a bearing, the second upper rack shell is connected with the lower rack shell through a bearing, the first upper rack shell is connected with the lower rack shell through a bearing, the second upper rack shell is connected with the upper rack shell through a bearing, the second upper rack shell is connected with the lower rack through a bearing, the second upper rack shell is connected with the upper rack through a bearing, and the third upper rack is connected with the upper rack through a bearing.

On the basis of the technical scheme, the locking part includes that No. two turn round handle, No. three turn round handle, arc wall, drive belt shaft gear, adapter sleeve, No. four turn round handle, spacing post, spacing strip, No. two back shaft bottoms are connected with a horizontally No. two through the bearing rotation and turn round the handle, No. three back shaft bottoms articulate has a horizontally No. three to turn round the handle, open the main part bottom has two horizontally arc walls, two there is a vertical drive belt shaft gear through bearing sliding connection in the arc wall, drive belt shaft gear bottom is connected with a vertical adapter sleeve through the bearing rotation, the adapter sleeve bottom articulates there is a horizontally No. four to turn round the handle, main part bottom right part is fixed with a vertical spacing post, main part bottom right part is fixed with two horizontally spacing strips, No. two turn round handle, No. three turn round handle and No. four turn round the handle and be the magnetism material.

On the basis of the technical scheme, the main body is made of steel, the first gear is meshed with the adjacent first belt shaft gear, the second gear is meshed with the adjacent second belt shaft gear, the two third gears are respectively meshed with the adjacent second belt shaft gear and the adjacent third belt shaft gear, the transmission belt shaft gear can be meshed with the second belt shaft gear and the third belt shaft gear, the upper portion of the first support shaft is in threaded connection with the second upper rack shell, the lower portion of the second support shaft is in threaded connection with the second lower rack shell, the lower U-shaped pin can be inserted into the first lower positioning hole or the second lower positioning hole, the upper U-shaped pin can be inserted into the first upper positioning hole or the second lower positioning hole,

on the basis of the technical scheme, the second lower gear is respectively meshed with the rack on the inner wall of the first lower rack shell and the rack on the outer wall of the third lower rack shell, the two third lower gears are respectively meshed with the rack on the inner wall of the second lower rack shell and the rack on the outer wall of the fourth lower rack shell, the fourth lower shaft gear is meshed with the lower rack, the two second upper gears are respectively meshed with the rack on the inner wall of the first upper rack shell and the rack on the outer wall of the third upper rack shell, the two third upper gears are respectively meshed with the rack on the inner wall of the second upper rack shell and the rack on the outer wall of the fourth upper rack shell, the fourth lower shaft gear can drive the lower rack to move up and down when rotating, the lower rack can be spliced with the third lower positioning hole through the lower positioning pin in the process of moving up and down, and the fourth upper shaft gear is meshed with the upper rack, the No. four upper belt shaft gears can drive the upper rack to move up and down when rotating, the upper rack can be connected with the No. three upper positioning holes through the upper positioning pins in the moving up and down process, the No. three twisting handles can be connected between two limiting strips, the No. four twisting handles can be connected between two limiting strips, and can be connected between a limiting column and a limiting strip, the No. two twisting handles, the No. three twisting handles and the No. four twisting handles can be adsorbed on the outer wall.

Compared with the prior art, the invention has the following advantages: the invention mainly utilizes the engagement between gears for transmission, and can control whether the ball head upper clamping seat and the ball head lower clamping seat move up and down in a coordinated manner by adjusting the position of the transmission belt shaft gear, so that whether the ball head upper clamping seat and the ball head lower clamping seat rapidly clamp can be selected according to space environment and use requirements, time is reduced for adjusting tightness, and the upper U-shaped pin and the lower U-shaped pin which can adjust the positions can adjust whether the ball head upper clamping seat and the ball head lower clamping seat can rotate in a spherical surface manner, thereby being suitable for the clamping between parallel planes or the clamping between non-parallel planes.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure view of the main body of the present invention.

Fig. 3 is a schematic diagram of the operation of the present invention.

FIG. 4 is an installation diagram of the lower ball joint clamping seat and the upper ball joint clamping seat of the present invention.

Fig. 5 is a bottom structure view of the main body of the present invention.

Fig. 6 is an installation schematic diagram of a number four twist grip of the present invention.

In the figure: 1. a main body, 2, a first belt shaft gear, 3, a second belt shaft gear, 4, a third belt shaft gear, 5, a first support shaft, 6, a second support shaft, 7, a third support shaft, 8, a first gear, 9, a second gear, 10, a third gear, 11, a lower clamping part, 12, an upper clamping part, 13, a locking part, 14, a first lower rack housing, 15, a second lower rack housing, 16, a third lower rack housing, 17, a fourth lower rack housing, 18, a second lower gear, 19, a third lower gear, 20, a fourth lower belt shaft gear, 21, a lower U-shaped pin, 22, a first lower positioning hole, 23, a second lower positioning hole, 24, a ball head lower clamping seat, 25, a third lower positioning hole, 26, a lower rack frame, 27, a lower positioning pin, 28, a first upper rack housing, 29, a second upper rack housing, 30, a third upper rack housing, 31, a fourth upper rack housing, 32. no. two upper gears, 33, No. three upper gears, 34, No. four upper belt shaft gears, 35, upper U-shaped pins, 36, No. one upper positioning holes, 37, No. two upper positioning holes, 38, a ball head upper clamping seat, 39, No. three upper positioning holes, 40, an upper rack, 41, upper positioning pins, 42, No. two twisting handles, 43, No. three twisting handles, 44, an arc-shaped groove, 45, a transmission belt shaft gear, 46, a connecting sleeve, 47, No. four twisting handles, 48, a limiting column, 49 and a limiting strip.

Detailed Description

The invention is explained in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1-6, a convenient carpenter's clamping tool for furniture production comprises a main body 1, a first belt shaft gear 2, a second belt shaft gear 3, a third belt shaft gear 4, a first support shaft 5, a second support shaft 6, a third support shaft 7, a first gear 8, a second gear 9, a third gear 10, a lower clamping part 11, an upper clamping part 12 and a locking part 13, wherein the main body 1 is hollow, the inner wall of the upper part of the main body 1 is rotatably connected with a plurality of vertical first belt shaft gears 2 through bearings, the inner wall of the lower part of the main body 1 is rotatably connected with a plurality of vertical second belt shaft gears 3 and a plurality of vertical third belt shaft gears 4 through bearings, each first belt shaft gear 2 is horizontally arranged at the upper part of the main body 1 and is meshed with each other, each second belt shaft gear 3 is horizontally arranged at the lower part of the main body 1 and is meshed with each other, each No. three band shaft gears 4 are horizontally arranged at the lower part of main body 1 and are engaged with each other two by two, the inner wall of the upper part of main body 1 is rotatably connected with a vertical first supporting shaft 5 through a bearing, the inner wall of the lower part of main body 1 is rotatably connected with a vertical second supporting shaft 6 through a bearing, the right part of main body 1 is rotatably connected with a vertical No. three supporting shaft 7 through a bearing, a horizontal first gear 8 is fixed at the upper part of first supporting shaft 5, a horizontal second gear 9 is fixed at the lower part of second supporting shaft 6, a horizontal third gear 10 is respectively fixed at the upper part and the lower part of No. three supporting shaft 7, a lower clamping part 11 is fixed at the lower part of main body 1, an upper clamping part 12 is fixed at the upper part of main body 1, and a locking part 13 is fixed at the bottom of main body 1.

The lower clamping part 11 comprises a first lower rack shell 14, a second lower rack shell 15, a third lower rack shell 16, a fourth lower rack shell 17, a second lower gear 18, a third lower gear 19, a fourth lower belt shaft gear 20, a lower U-shaped pin 21, a first lower positioning hole 22, a second lower positioning hole 23, a ball head lower clamping seat 24, a third lower positioning hole 25, a lower rack frame 26 and a lower positioning pin 27, wherein the top end of the lower part of the main body 1 is fixedly provided with the vertical first lower rack shell 14, the vertical second lower rack shell 15 is connected in the first lower rack shell 14 in a sliding manner, the vertical third lower rack shell 16 is connected in the second lower rack shell 15 in a sliding manner, the vertical fourth lower rack shell 17 is connected in the third lower rack shell 16 in a sliding manner, the vertical second lower rack shell 15 is respectively connected in a rotating manner with the vertical second lower gear 18 through a bearing at the left part and the right part, the left portion and the right portion of the third lower rack shell 16 are respectively rotatably connected with a vertical third lower gear 19 through bearings, the upper portion of the fourth lower rack shell 17 is rotatably connected with a horizontal fourth lower belt shaft gear 20 through bearings, a horizontal lower U-shaped pin 21 is inserted in the middle of the fourth lower belt shaft gear 20, a horizontal first lower positioning hole 22 penetrates through the upper portion of the fourth lower rack shell 17, a horizontal second lower positioning hole 23 penetrates through the right portion of the fourth lower rack shell 17, a vertical ball head lower clamping seat 24 is rotatably connected with the spherical surface of the upper portion of the fourth lower rack shell 17, a vertical third lower positioning hole 25 is formed in the bottom of the ball head lower clamping seat 24, a vertical lower rack 26 is slidably connected inside the fourth lower rack shell 17, and a vertical lower positioning pin 27 is fixed at the top end of the lower rack 26.

The upper clamping part 12 comprises a first upper rack shell 28, a second upper rack shell 29, a third upper rack shell 30, a fourth upper rack shell 31, a second upper gear 32, a third upper gear 33, a fourth upper belt shaft gear 34, an upper U-shaped pin 35, a first upper positioning hole 36, a second upper positioning hole 37, a ball head upper clamping seat 38, a third upper positioning hole 39, an upper rack frame 40 and an upper positioning pin 41, wherein the bottom end of the upper part of the main body 1 is fixedly provided with a vertical first upper rack shell 28, the first upper rack shell 28 is internally and slidably connected with a vertical second upper rack shell 29, the second upper rack shell 29 is internally and slidably connected with a vertical third upper rack shell 30, the third upper rack shell 30 is internally and slidably connected with a vertical fourth upper rack shell 31, the left part and the right part of the second upper rack shell 29 are respectively and rotatably connected with a vertical second upper gear 32 through bearings, the left portion and the right portion of the third upper rack shell 30 are respectively rotatably connected with a vertical third upper gear 33 through bearings, the lower portion of the fourth upper rack shell 31 is rotatably connected with a horizontal fourth upper belt shaft gear 34 through bearings, a horizontal upper U-shaped pin 35 is inserted into the middle of the fourth upper belt shaft gear 34, a horizontal first upper positioning hole 36 penetrates through the lower portion of the fourth upper rack shell 31, a horizontal second upper positioning hole 37 penetrates through the right portion of the fourth upper rack shell 31, a vertical ball head upper clamping seat 38 is rotatably connected with the spherical surface of the lower portion of the fourth upper rack shell 31, a vertical third upper positioning hole 39 is formed in the top of the ball head upper clamping seat 38, a vertical upper rack 40 is slidably connected inside the fourth upper rack shell 31, and a vertical upper positioning pin 41 is fixed at the bottom end of the upper rack 40.

The locking part 13 comprises a second twist handle 42, a third twist handle 43, an arc-shaped groove 44, a transmission belt shaft gear 45, a connecting sleeve 46, a fourth twist handle 47, a limiting column 48 and a limiting strip 49, the bottom of the second support shaft 6 is rotatably connected with a horizontal second twist handle 42 through a bearing, the bottom of the third support shaft 7 is hinged with a horizontal third twist handle 43, the bottom of the main body 1 is provided with two horizontal arc-shaped grooves 44, a vertical transmission belt shaft gear 45 is connected in the two arc-shaped grooves 44 in a sliding way through a bearing, the bottom of the transmission belt shaft gear 45 is rotatably connected with a vertical connecting sleeve 46 through a bearing, the bottom of the connecting sleeve 46 is hinged with a horizontal four-twist handle 47, the right part of the bottom end of the main body 1 is fixed with a vertical limiting column 48, two horizontal spacing strips 49 are fixed to the right portion of the bottom end of the main body 1, and the second twisting handle 42, the third twisting handle 43 and the fourth twisting handle 47 are made of magnetic materials.

The main body 1 is made of steel, the first gear 8 is meshed with the adjacent first belt shaft gear 2, the second gear 9 is meshed with the adjacent second belt shaft gear 3, the two third gears 10 are respectively meshed with the adjacent second belt shaft gear 3 and the adjacent third belt shaft gear 4, the transmission belt shaft gear 45 can be meshed with the second belt shaft gear 3 and the third belt shaft gear 4, the upper portion of the first support shaft 5 is in threaded connection with the second upper rack shell 29, the lower portion of the second support shaft 6 is in threaded connection with the second lower rack shell 15, the lower U-shaped pin 21 can be inserted into the first lower positioning hole 22 or the second lower positioning hole 23, the upper U-shaped pin 35 can be inserted into the first upper positioning hole 36 or the second lower positioning hole 23,

the second lower gear 18 is respectively meshed with a rack on the inner wall of the first lower rack shell 14 and a rack on the outer wall of the third lower rack shell 16, the second third lower gear 19 is respectively meshed with a rack on the inner wall of the second lower rack shell 15 and a rack on the outer wall of the fourth lower rack shell 17, the fourth lower belt shaft gear 20 is meshed with the lower rack 26, the second upper gear 32 is respectively meshed with a rack on the inner wall of the first upper rack shell 28 and a rack on the outer wall of the third upper rack shell 30, the second upper gear 33 is respectively meshed with a rack on the inner wall of the second upper rack shell 29 and a rack on the outer wall of the fourth upper rack shell 31, the fourth lower belt shaft gear 20 can drive the lower rack 26 to move up and down when rotating, the lower rack 26 can be inserted into the third lower positioning hole 25 through the lower positioning pin 27 in the process of moving up and down, and the fourth upper belt shaft gear 34 is meshed with the upper rack 40, the fourth upper belt shaft gear 34 can drive the upper rack 40 to move up and down when rotating, the upper rack 40 can be connected with the third upper positioning hole 39 through the upper positioning pin 41 in the moving up and down process, the third twisting handle 43 can be connected between two limiting strips 49 in an inserting mode, the fourth twisting handle 47 can be connected between the two limiting strips 49 in an inserting mode and can be connected between a limiting column 48 and the limiting strips 49 in an inserting mode, and the second twisting handle 42, the third twisting handle 43 and the fourth twisting handle 47 can be adsorbed on the outer wall.

The working principle of the invention is as follows: when the upper U-shaped pin 35 is inserted into the first upper positioning hole 36, the upper positioning pin 41 is inserted into the third upper positioning hole 39, the ball head upper clamping seat 38 cannot realize spherical rotation, when the upper U-shaped pin 35 is inserted into the second upper positioning hole 37, the upper positioning pin 41 is not inserted into the third upper positioning hole 39, the ball head upper clamping seat 38 can realize spherical rotation, when the lower U-shaped pin 21 is inserted into the first lower positioning hole 22, the lower positioning pin 27 is inserted into the third lower positioning hole 25, the ball head lower clamping seat 24 cannot realize spherical rotation, when the U-shaped pin 21 is inserted into the second lower positioning hole 23, the lower positioning pin 27 is not inserted into the third lower positioning hole 25, the ball head lower clamping seat 24 can realize spherical rotation, so that clamping between parallel planes or clamping between non-parallel planes is adapted, and when quick clamping is allowed or required in a space, the third torsion handle 43 is separated from the outer wall of the main body 1 for adsorption, meanwhile, the fourth twisting handle 47 is adsorbed on the outer wall of the main body 1 and is inserted into the two limiting strips 49, the transmission belt shaft gear 45 is meshed with the second belt shaft gear 3 and the third belt shaft gear 4, then the second twisting handle 42 is rotated, the second lower rack housing 15 can move up and down under the thread transmission, the second lower rack housing 15 can quickly drive the ball head lower clamping seat 24 to move up and down through the first-stage one-stage meshing transmission in the process of moving up and down, the first supporting shaft 5 can be driven to rotate through the transmission belt shaft gear 45, the second upper rack housing 29 can move up and down under the thread transmission, the second upper rack housing 29 can quickly drive the ball head upper clamping seat 38 to move up and down through the first-stage one-stage meshing transmission in the process of moving up and down, when the space does not allow or does not need to quickly clamp, the third twisting handle 43 is adsorbed on the outer wall of the main body 1, and make it peg graft between two spacing strips 49, make No. four twist the handle 47 and adsorb with main part 1 outer wall simultaneously to make it peg graft between spacing strip 49 and spacing post 48, drive belt shaft gear 45 breaks away from the meshing with No. two band shaft gears 3 this moment, No. three back shaft 7 also can't rotate simultaneously, then turn round No. two and twist handle 42 and can drive the ball head and press from both sides tight seat 38 and reciprocate fast, thereby accomplish the clamping work.

The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.

Claims

1. The utility model provides a convenient carpenter of furniture production presss from both sides dress instrument, includes main part (1), a tape spool gear (2), No. two tape spool gears (3), No. three tape spool gears (4), a back shaft (5), No. two back shafts (6), No. three back shafts (7), a gear (8), No. two gears (9), No. three gears (10), lower clamping part (11), go up clamping part (12), locking part (13), its characterized in that: the main body (1) is hollow, the inner wall of the upper part of the main body (1) is rotatably connected with a plurality of vertical first belt shaft gears (2) through bearings, the inner wall of the lower part of the main body (1) is rotatably connected with a plurality of vertical second belt shaft gears (3) and a plurality of vertical third belt shaft gears (4) through bearings, each first belt shaft gear (2) is horizontally arranged at the upper part of the main body (1) and is meshed with each other, each second belt shaft gear (3) is horizontally arranged at the lower part of the main body (1) and is meshed with each other, each third belt shaft gear (4) is horizontally arranged at the lower part of the main body (1) and is meshed with each other, the inner wall of the upper part of the main body (1) is rotatably connected with a vertical first support shaft (5) through bearings, the inner wall of the lower part of the main body (1) is rotatably connected with a vertical second support shaft (6) through bearings, the main part (1) right part is connected with a vertical No. three back shaft (7) through the bearing rotation, a horizontal No. one gear (8) is fixed with on back shaft (5) upper portion, No. two back shaft (6) lower parts are fixed with a horizontal No. two gear (9), No. three back shaft (7) upper and lower two parts respectively are fixed with a horizontal No. three gear (10), main part (1) lower part is fixed with a clamping portion (11), main part (1) upper portion is fixed with an upper clamping portion (12), main part (1) bottom is fixed with a locking portion (13).

2. The convenient carpenter's clamp instrument of furniture production of claim 1, characterized in that: the lower clamping part (11) comprises a first lower rack shell (14), a second lower rack shell (15), a third lower rack shell (16), a fourth lower rack shell (17), a second lower gear (18), a third lower gear (19), a fourth lower belt shaft gear (20), a lower U-shaped pin (21), a first lower positioning hole (22), a second lower positioning hole (23), a ball head lower clamping seat (24), a third lower positioning hole (25), a lower rack frame (26) and a lower positioning pin (27), the vertical first lower rack shell (14) is fixed at the top end of the lower part of the main body (1), the vertical second lower rack shell (15) is connected to the inside of the first lower rack shell (14) in a sliding manner, the vertical third lower rack shell (16) is connected to the inside of the second lower rack shell (15) in a sliding manner, and the vertical fourth lower rack shell (17) is connected to the inside of the third lower rack shell (16) in a sliding manner, the left part and the right part of the second lower rack shell (15) are respectively and rotatably connected with a vertical second lower gear (18) through bearings, the left part and the right part of the third lower rack shell (16) are respectively and rotatably connected with a vertical third lower gear (19) through bearings, the upper part of the fourth lower rack shell (17) is rotatably connected with a horizontal fourth lower belt shaft gear (20) through bearings, a horizontal lower U-shaped pin (21) is inserted in the middle of the fourth lower belt shaft gear (20), a horizontal first lower positioning hole (22) penetrates through the upper part of the fourth lower rack shell (17), a horizontal second lower positioning hole (23) penetrates through the right part of the fourth lower rack shell (17), the spherical surface of the upper part of the fourth lower rack shell (17) is rotatably connected with a vertical ball head lower clamping seat (24), and a vertical third lower positioning hole (25) is formed in the bottom of the ball head lower clamping seat (24), the inside sliding connection of fourth lower rack shell (17) has a vertical lower rack (26), rack (26) top is fixed with a vertical lower locating pin (27) down.

3. The convenient carpenter's clamp instrument of furniture production of claim 1, characterized in that: the upper clamping part (12) comprises a first upper rack shell (28), a second upper rack shell (29), a third upper rack shell (30), a fourth upper rack shell (31), a second upper gear (32), a third upper gear (33), a fourth upper belt shaft gear (34), an upper U-shaped pin (35), a first upper positioning hole (36), a second upper positioning hole (37), a ball head upper clamping seat (38), a third upper positioning hole (39), an upper rack frame (40) and an upper positioning pin (41), the vertical first upper rack shell (28) is fixed at the bottom end of the upper part of the main body (1), the vertical second upper rack shell (29) is connected in the first upper rack shell (28) in a sliding manner, the vertical third upper rack shell (30) is connected in the second upper rack shell (29) in a sliding manner, and the vertical fourth upper rack shell (31) is connected in the third upper rack shell (30) in a sliding manner, the left part and the right part of the second upper rack shell (29) are respectively and rotatably connected with a vertical second upper gear (32) through bearings, the left part and the right part of the third upper rack shell (30) are respectively and rotatably connected with a vertical third upper gear (33) through bearings, the lower part of the fourth upper rack shell (31) is rotatably connected with a horizontal fourth upper belt shaft gear (34) through bearings, the middle part of the fourth upper belt shaft gear (34) is inserted with a horizontal upper U-shaped pin (35), the lower part of the fourth upper rack shell (31) is penetrated with a horizontal first upper positioning hole (36), the right part of the fourth upper rack shell (31) is penetrated with a horizontal second upper positioning hole (37), the spherical surface of the lower part of the fourth upper rack shell (31) is rotatably connected with a vertical bulb upper clamping seat (38), and the top of the bulb upper clamping seat (38) is provided with a vertical third upper positioning hole (39), a vertical upper rack (40) is connected to the inside of the fourth upper rack shell (31) in a sliding mode, and a vertical upper positioning pin (41) is fixed to the bottom end of the upper rack (40).

4. The convenient carpenter's clamp instrument of furniture production of claim 1, characterized in that: the locking part (13) comprises a second torsion handle (42), a third torsion handle (43), an arc-shaped groove (44), a transmission belt shaft gear (45), a connecting sleeve (46), a fourth torsion handle (47), a limiting column (48) and a limiting strip (49), the bottom of the second support shaft (6) is connected with a horizontal second torsion handle (42) through a bearing in a rotating manner, the bottom of the third support shaft (7) is hinged with a horizontal third torsion handle (43), the bottom of the main body (1) is provided with two horizontal arc-shaped grooves (44), two vertical transmission belt shaft gears (45) are connected in the arc-shaped grooves (44) through bearing sliding, the bottom of the transmission belt shaft gear (45) is connected with a vertical connecting sleeve (46) through a bearing in a rotating manner, the bottom of the connecting sleeve (46) is hinged with a horizontal fourth torsion handle (47), and a vertical limiting column (48) is fixed at the right part of the bottom of the main body (1), the main part (1) bottom right part is fixed with two horizontally spacing (49), No. two twist grip (42), No. three twist grip (43) and No. four twist grip (47) are the magnetism material.

5. A convenient woodworking clamping tool for furniture production according to claim 1 or 3, wherein: the main body (1) is made of steel, the first gear (8) is meshed with the adjacent first gear (2) with a shaft, the second gear (9) is meshed with the adjacent second belt shaft gear (3), the two third gears (10) are respectively meshed with the adjacent second belt shaft gear (3) and the adjacent third belt shaft gear (4), the transmission belt shaft gear (45) can be meshed with the second belt shaft gear (3) and the third belt shaft gear (4), the upper part of the first support shaft (5) is in threaded connection with a second upper rack shell (29), the lower part of the second support shaft (6) is in threaded connection with a second lower rack shell (15), the lower U-shaped pin (21) can be inserted into the first lower positioning hole (22) or the second lower positioning hole (23), the upper U-shaped pin (35) can be inserted into the first upper positioning hole (36) or the second lower positioning hole (23).

6. A convenient carpenter's clamp instrument of furniture production according to claim 2 or 4, characterized in that: two No. two lower gear (18) mesh with the rack of a No. one lower rack shell (14) inner wall and the rack of a No. three lower rack shell (16) outer wall respectively, two No. three lower gear (19) mesh with the rack of a No. two lower rack shell (15) inner wall and the rack of a No. four lower rack shell (17) outer wall respectively, No. four lower belt shaft gear (20) mesh with lower rack (26), two No. two upper gear (32) mesh with the rack of a No. one upper rack shell (28) inner wall and the rack of a No. three upper rack shell (30) outer wall respectively, two No. three upper gear (33) mesh with the rack of a No. two upper rack shell (29) inner wall and the rack of a No. four upper rack shell (31) outer wall respectively, No. four lower belt shaft gear (20) can drive lower rack (26) when rotating, lower rack (26) can move up and down through lower locating pin (27) and No. three lower locating pin (25) in the in-process that reciprocates ) Peg graft mutually, No. four go up tape spool gear (34) and last rack (40) mesh mutually, can drive rack (40) and reciprocate when No. four go up tape spool gear (34) rotate, go up rack (40) and can peg graft mutually with No. three last locating hole (39) through last locating pin (41) at the in-process that reciprocates, No. three twist handle (43) can be pegged graft between two spacing (49), No. four twist handle (47) can be pegged graft between two spacing (49), and can peg graft between spacing post (48) and spacing (49), No. two twist handle (42), No. three twist handle (43) and No. four twist handle (47) can adsorb on the outer wall.