CN114505703A

CN114505703A - Clamping workbench based on special-shaped piece machining

Info

Publication number: CN114505703A
Application number: CN202210247317.XA
Authority: CN
Inventors: 梁英泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-03-14
Filing date: 2022-03-14
Publication date: 2022-05-17

Abstract

The invention discloses a clamping workbench based on special-shaped part machining, which comprises a base, wherein a rotatable mounting disc is arranged in the middle of the base, a supporting part for machining a special-shaped part is arranged on the upper surface of the mounting disc, a plurality of groups of first clamping mechanisms for laterally clamping the special-shaped part are arranged on the upper surface of the supporting part, the groups of first clamping mechanisms are distributed in an annular array manner, each group of first clamping mechanisms comprises two first fixed sliding rails and a mounting plate, and the two first fixed sliding rails are fixedly arranged on the upper surface of the supporting part. According to the invention, through the self rotation of the two first contact pressure heads and the inclination change of the mounting plate, the clamping points of the two first contact pressure heads are tightly attached to the outer wall of the special-shaped piece, so that the problem that the special-shaped piece is difficult to clamp is solved, and meanwhile, the stability is higher.

Description

Clamping workbench based on special-shaped piece machining

Technical Field

The invention relates to the technical field of machining, in particular to a clamping workbench based on special-shaped piece machining.

Background

With the increasing requirements of engineering mechanical equipment, a special-shaped piece and a special-shaped piece with large stress can be used on a plurality of engineering mechanical equipment, the structure of the special-shaped piece is complex, the space direction of a processing part of the special-shaped piece is more, the requirement on the position degree of a hole system piece is strict, the structure of the special-shaped piece is complex in the processing process, a plurality of surfaces generally need to be processed, and therefore the special-shaped piece needs to be disassembled, replaced and clamped for many times. However, the clamping difficulty of the existing clamping workbench is high and the stability is poor particularly for the processing of special-shaped parts.

Disclosure of Invention

The clamping workbench based on the machining of the special-shaped part comprises a first contact pressure head, a second contact pressure head, a mounting plate, a clamping head and a clamping head, wherein the first contact pressure head is connected with the mounting plate through a connecting rod, the clamping head is connected with the mounting plate through a connecting rod, and the clamping head is connected with the mounting plate through a connecting rod.

In order to achieve the purpose, the invention provides the following technical scheme: the clamping workbench based on the machining of the special-shaped piece comprises a base, wherein a rotatable installation disc is arranged in the middle of the base, a supporting part for machining the special-shaped piece is arranged on the upper surface of the installation disc, a plurality of groups of first clamping mechanisms for laterally clamping the special-shaped piece are arranged on the upper surface of the supporting part, and the plurality of groups of first clamping mechanisms are distributed in an annular array;

each group of first clamping mechanisms comprises two first fixed slide rails and a mounting plate, the two first fixed slide rails are fixedly mounted on the upper surface of the supporting part, second racks are respectively slidably mounted in the two first fixed slide rails, fixed blocks are fixed at the end parts, far away from the first fixed slide rails, of the two second racks, each fixed block is respectively hinged with a mounting block through a connecting piece, the two mounting blocks are respectively slidably mounted in sliding grooves formed in the rear side of the mounting plate, two rotatable first contact pressure heads are mounted on the front side of the mounting plate, a first rack is slidably mounted on the mounting plate through a through groove formed in the mounting plate, a second mounting frame is fixedly mounted at one end, close to the first fixed slide rails, of the first rack, and second rotating teeth meshed with the second racks are rotatably mounted in the second mounting frame;

and the upper surface of the base is provided with an engaging transmission mechanism for the first rack on which the first clamping mechanism is positioned to perform telescopic motion.

Preferably, the meshing transmission mechanism includes that the interior ring gear of installing at the mounting disc inner wall rotates, rotate on the mounting disc and install a plurality of connecting axles, every the lower part fixed mounting of connecting axle has the first driving tooth with interior ring gear engaged with, the upper portion fixed mounting of connecting axle has the second driving tooth with first rack engaged with.

Preferably, the top of base still is provided with and is used for driving interior ring gear pivoted actuating mechanism, actuating mechanism includes outer ring gear, outer ring gear is through a plurality of connecting strips and interior ring gear fixed connection, the top fixed mounting of base has the second motor, the output shaft of second motor is installed the gear with outer ring gear engaged with.

Preferably, the top fixed mounting of base has the support frame, the interior top fixed mounting of support frame has first motor, the mounting bar is installed to the output shaft of first motor, the mounting bar is close to the lower surface mounting at middle part and has the processing head, the mounting bar is close to the lower surface of both sides and has seted up electronic spout, electronic spout slidable mounting has two relative electronic sliders, every the lower surface of electronic slider is provided with respectively and is used for the vertical tight second fixture of clamp of dysmorphism piece.

Preferably, second fixture includes two fixed slide rails of second and electric telescopic handle, electric telescopic handle fixed mounting is in electric slider's bottom, electric telescopic handle's output fixed mounting has first installing frame, the inside of first installing frame is rotated and is installed first rotation tooth, two the fixed slide rail of second is respectively through installed part fixed mounting in electric slider's bottom, two the inside difference slidable mounting of the fixed slide rail of second has the third rack, two the third rack all with first rotation tooth meshing transmission, two the bottom difference fixed mounting second contact pressure head of third rack.

Preferably, the second contact ram and the first contact ram are both of a rubber material.

Preferably, a dust collection mechanism is arranged inside the base and comprises a plurality of guide grooves formed in the upper surface of the supporting portion and a dust collection port formed in the middle of the upper surface of the supporting portion, the guide grooves are communicated with the dust collection port, a dust collection box is fixedly mounted on the inner wall of the base, a dust collection pipe is rotatably mounted at the bottom of the dust collection port, and one end, far away from the dust collection port, of the dust collection pipe extends into the dust collection box and is provided with a dust collector.

Preferably, a door body is mounted on the front side of the base.

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

1. according to the invention, through the structural arrangement of the first clamping mechanism, due to the connection relation of the fixed block, the connecting piece and the mounting plate, the mounting block can slide in the mounting plate in a matching manner, so that the mounting plate can incline to different degrees, under the action of contact with a special-shaped piece, the two first contact pressure heads rotate by themselves and change in inclination of the mounting plate, so that the clamping points of the two first contact pressure heads are tightly attached to the outer wall of the special-shaped piece, the problem of poor clamping of the special-shaped piece is solved, and meanwhile, the stability is higher.

2. According to the invention, the second clamping mechanisms arranged on the two sides of the mounting bar can realize rotation of the mounting bar when the first motor is driven to work, and meanwhile, the position of the second clamping mechanism can be adjusted by matching with the arrangement of the electric sliding block, so that the processing is further stable;

3. according to the invention, through the structural design of the second clamping mechanism, two second contact pressure heads at the bottom of the second clamping mechanism can finally carry out two-point clamping on the positions of the special-shaped piece at different heights, so that the processing stability of the special-shaped piece is further ensured.

4. Through further arrangement of the structure, when the two first contact pressure heads completely abut against the special-shaped piece, the two second racks can not move any more, the first racks are further kept static, so that the inner gear ring can not rotate, and the second motor drives the outer ring gear to continue rotating, so that the mounting disc and the special-shaped piece on the mounting disc can integrally rotate in the circumferential direction, and the special-shaped piece can be conveniently machined in different directions.

5. According to the dust collection box, the guide groove and the dust collection port are annularly arranged on the upper surface of the supporting part, so that when a dust collector in the dust collection box is started to work, dust in the dust collection port and the corresponding guide groove can be sucked, and the dust can enter the dust collection box to be collected.

Drawings

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

FIG. 2 is a schematic front view of the present invention;

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

FIG. 4 is a rear view of the present invention;

FIG. 5 is a schematic view of the cross-sectional structure A-A of the present invention;

FIG. 6 is a schematic view of the cross-sectional structure B-B of the present invention;

FIG. 7 is a schematic view of the cross-sectional structure of C-C of the present invention;

FIG. 8 is an enlarged view of the second clamping mechanism of the present invention;

FIG. 9 is an enlarged view of the first clamping mechanism of the present invention;

FIG. 10 is an enlarged view of the support portion of the present invention.

In the figure: 1. a base; 2. a door body; 3. a support frame; 4. a first motor; 5. mounting a bar; 6. an electric slider; 7. a machining head; 8. a mounting member; 9. mounting a disc; 10. outer ring teeth; 11. a second motor; 12. a gear; 13. an inner gear ring; 14. a connecting strip; 15. a first drive tooth; 16. a connecting shaft; 17. a first rack; 18. a support portion; 19. a guide groove; 20. a dust suction port; 21. a first fixed slide rail; 22. a second rack; 23. a first contact ram; 24. a third rack; 25. a second fixed slide rail; 26. a second contact ram; 27. a first rotating tooth; 28. a first mounting frame; 29. an electric telescopic rod; 30. a second mounting frame; 31. a second rotating tooth; 32. a fixed block; 33. a connecting member; 34. mounting blocks; 35. mounting a plate; 36. a dust collection pipe; 37. a dust collection box; 38. a vacuum cleaner; 39. a second drive tooth.

Detailed Description

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 10, the present invention provides a technical solution: the clamping workbench based on the machining of the special-shaped piece comprises a base 1, wherein a rotatable mounting disc 9 is arranged in the middle of the base 1, a supporting part 18 for machining the special-shaped piece is arranged on the upper surface of the mounting disc 9, a plurality of groups of first clamping mechanisms for laterally clamping the special-shaped piece are arranged on the upper surface of the supporting part 18, and the plurality of groups of first clamping mechanisms are distributed in an annular array;

each group of first clamping mechanisms comprises two first fixed slide rails 21 and a mounting plate 35, the two first fixed slide rails 21 are fixedly mounted on the upper surface of the supporting part 18, second racks 22 are respectively slidably mounted inside the two first fixed slide rails 21, fixed blocks 32 are fixed at the end parts, far away from the first fixed slide rails 21, of the two second racks 22, each fixed block 32 is respectively hinged with a mounting block 34 through a connecting piece 33, the two mounting blocks 34 are respectively slidably mounted in sliding grooves formed in the rear side of the mounting plate 35, two rotatable first contact pressure heads 23 are mounted on the front side of the mounting plate 35, a first rack 17 is slidably mounted on the mounting plate 9 through a through groove formed in the mounting plate, a second mounting frame 30 is fixedly mounted at one end, close to the first fixed slide rails 21, of the first rack 17, and second rotating teeth 31 meshed with the second racks 22 are rotatably mounted inside the second mounting frame 30;

the upper surface of the base 1 is provided with an engaging transmission mechanism for the first rack 17 where the first clamping mechanism is located to perform telescopic motion.

Through the arranged meshing transmission mechanism, when the plurality of first racks 17 of the annular array are close to the middle, and due to the structural arrangement of the first clamping mechanism, the first racks 17 can further drive the second rotating teeth 31 on the second mounting frame 30 to move at the beginning, due to the second racks 22 meshed at the two sides of the second rotating teeth 31, in this state, the two second racks 22 can move together along with the first racks 17 in the direction close to the special-shaped piece, and further the two first contact pressure heads 23 on the mounting plate 35 can approach in the direction close to the special-shaped piece, when one of the first contact pressure heads 23 is in contact with the outer wall of the special-shaped piece, the second rack 22 corresponding to the position of the first contact pressure head is kept static, when the first rack 17 continues to drive the second rotating teeth 31 to move, the second rotating teeth 31 can rotate at the moment, so that the second racks 22 at the other side move relatively, because fixed block 32, the relation of connection of connecting piece 33 and mounting panel 35, cooperation installation piece 34 can slide in mounting panel 35 is inside, can make mounting panel 35 take place the slope of different degrees, under the effort with the contact of dysmorphism piece, two first contact pressure heads 23 are through the rotation of self, and mounting panel 35's slope changes, thereby make the centre gripping point of two first contact pressure heads 23 closely laminate with dysmorphism outer wall, the problem of the good centre gripping of dysmorphism piece has been solved, stability is higher simultaneously.

Further, the meshing transmission mechanism comprises an inner gear ring 13 rotatably mounted on the inner wall of the mounting disc 9, a plurality of connecting shafts 16 are rotatably mounted on the mounting disc 9, a first transmission gear 15 meshed with the inner gear ring 13 is fixedly mounted on the lower portion of each connecting shaft 16, and a second transmission gear 39 meshed with the first rack 17 is fixedly mounted on the upper portion of each connecting shaft 16.

Through the meshing effect of first driving gear 15 and interior ring gear 13, when interior ring gear 13 rotated, can drive a plurality of first driving gear 15 that the annular set up and take place to rotate, first driving gear 15 rotates and can further drive connecting axle 16 and the second driving gear 39 on upper portion and rotate, because the meshing effect of second driving gear 39 and first rack 17, when second driving gear 39 rotated, can further realize that a plurality of first rack 17 of annular array draw close to the centre.

Further, the top of the base 1 is also provided with a driving mechanism for driving the inner gear ring 13 to rotate, the driving mechanism comprises an outer gear ring 10, the outer gear ring 10 is fixedly connected with the inner gear ring 13 through a plurality of connecting strips 14, the top of the base 1 is fixedly provided with a second motor 11, and an output shaft of the second motor 11 is provided with a gear 12 meshed with the outer gear ring 10.

The gear 12 is driven to rotate by driving the second motor 11 to work, the gear 12 can further drive the outer ring gear 10 to rotate due to the meshing action of the gear 12 and the outer ring gear 10, the inner ring gear 13 can further be driven to rotate due to the connecting action of the connecting strip 14, through further arrangement of the structure, when the first contact pressure head 23 on the first rack 17 clamps the special-shaped piece, the second motor 11 can be continuously driven to rotate towards the same direction, at the moment, due to the meshing relation of the gear and the rack, when the two first contact pressure heads 23 are completely abutted against the special-shaped piece, the two second racks 22 can not move any more, the first rack 17 is further kept static, so that the inner ring gear 13 can not rotate, when the second motor 11 drives the outer ring gear 10 to rotate continuously, the whole installation disc 9 and the special-shaped piece on the installation disc can rotate in the circumferential direction, thereby facilitating the processing of the special-shaped piece in different directions.

Further, the top fixed mounting of base 1 has support frame 3, the interior top fixed mounting of support frame 3 has first motor 4, mounting bar 5 is installed to the output shaft of first motor 4, mounting bar 5 is close to the lower surface mounting at middle part has processing head 7, mounting bar 5 has seted up electronic spout near the lower surface of both sides, electronic spout slidable mounting has two relative electronic sliders 6, the lower surface of every electronic slider 6 is provided with respectively and is used for the vertical tight second fixture of clamp of dysmorphism.

Through the processing head 7 that sets up on the support frame 3, can process dysmorphism piece, simultaneously, through the second fixture that 5 both sides of mounting bar set up, when the first motor 4 during operation of drive, can realize that mounting bar 5 takes place to rotate, the setting of the electronic slider 6 of cooperation simultaneously can realize the adjustment of second fixture place position, is convenient for further stabilize processing.

Further, the second fixture includes two second fixed slide rails 25 and electric telescopic handle 29, electric telescopic handle 29 fixed mounting is in electric slider 6's bottom, electric telescopic handle 29's output fixed mounting has first installing frame 28, the internal rotation of first installing frame 28 installs first rotation tooth 27, two second fixed slide rails 25 are respectively through installed part 8 fixed mounting in electric slider 6's bottom, the inside of two second fixed slide rails 25 is sliding mounting respectively has third rack 24, two third racks 24 all with first rotation tooth 27 meshing transmission, the bottom of two third racks 24 is fixed mounting second contact pressure head 26 respectively.

Through the structural design of the second clamping mechanism, the principle is similar to that of the first clamping mechanism, and finally two points of positions of the special-shaped piece at different heights can be clamped by the two second contact pressure heads 26 at the bottom of the second clamping mechanism, so that the processing stability of the special-shaped piece is further ensured.

Further, both the second contact ram 26 and the first contact ram 23 are of rubber material.

Through second contact pressure head 26 and first contact pressure head 23 be rubber materials, can effectively avoid second contact pressure head 26 and first contact pressure head 23 when with the contact of dysmorphism outer wall, because of the too big dysmorphism outer wall damage that causes of clamping-force.

Further, a dust suction mechanism is arranged inside the base 1, the dust suction mechanism comprises a plurality of guide grooves 19 formed in the upper surface of the supporting portion 18 and a dust suction port 20 formed in the middle of the upper surface, the guide grooves 19 are communicated with the dust suction port 20, a dust collection box 37 is fixedly mounted on the inner wall of the base 1, a dust suction pipe 36 is rotatably mounted at the bottom of the dust suction port 20, and one end, far away from the dust suction port 20, of the dust suction pipe 36 extends into the dust collection box 37 and is provided with a dust collector 38.

Through the guide way 19 and the dust absorption mouth 20 that the surface ring shape set up on supporting part 18, after the processing was accomplished, can be with the dirt bits that produce of processing inside guide way 19, because the recess design of guide way 19, through the communicating action of dust catcher 38, when starting the inside dust catcher 38 work of dust collection box 37, alright suction the dirt bits in dust absorption mouth 20 and the corresponding guide way 19 to make the dirt bits get into inside the dust collection box 37 and collect.

Further, a door 2 is mounted on the front side of the base 1.

The dust collection box 37 in the base 1 can be cleaned regularly through the arranged door body 2.

The working principle is as follows: when the clamping workbench based on the machining of the special-shaped piece is used, the special-shaped piece to be machined is placed on the upper surface of the supporting part 18, and then the gear 12 is rotated by driving the second motor 11 to work, due to the meshing action of the gear 12 and the outer ring gear 10, the outer ring gear 10 can be further driven to rotate, due to the connection of the connecting strip 14, the inner gear ring 13 is further driven to rotate, and through the meshing action of the first transmission teeth 15 and the inner gear ring 13, when the inner gear ring 13 rotates, can drive a plurality of first transmission teeth 15 which are arranged annularly to rotate, the first transmission teeth 15 can further drive the connecting shaft 16 and a second transmission tooth 39 on the upper part of the connecting shaft to rotate, due to the meshing effect of the second transmission teeth 39 and the first racks 17, when the second transmission teeth 39 rotate, the plurality of first racks 17 in the annular array can be further drawn towards the middle;

when the plurality of first racks 17 of the annular array are close to the middle, due to the structural arrangement of the first clamping mechanism, at the beginning, the movement of the first racks 17 can further drive the second rotating teeth 31 on the second mounting frame 30 to move, due to the second racks 22 meshed with the two sides of the second rotating teeth 31, in this state, the two second racks 22 can move together along with the first racks 17 in the direction close to the special-shaped piece, and further the two first contact pressure heads 23 on the mounting plate 35 can approach in the direction of the special-shaped piece, when one of the first contact pressure heads 23 contacts with the outer wall of the special-shaped piece, the second rack 22 corresponding to the position of the special-shaped piece is kept still, when the first racks 17 continue to drive the second rotating teeth 31 to move, the second rotating teeth 31 can rotate at this moment, so that the second racks 22 on the other side can move relatively, and due to the fixed block 32, The connection relation of connecting piece 33 and mounting panel 35, cooperation installation piece 34 can be at the inside slip of mounting panel 35, can make mounting panel 35 take place the slope of not equidimension, under the effort with the contact of dysmorphism piece, two first contact pressure heads 23 are through the rotation of self to and the slope change of mounting panel 35, thereby make the centre gripping of two first contact pressure heads 23 closely laminate with dysmorphism outer wall, can accomplish the centre gripping to dysmorphism piece.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The detachable installation mode has various modes, for example, a mode of matching with a buckle through plugging, for example, a mode of connecting through a bolt, and the like.

The conception, the specific structure and the technical effects of the present invention are clearly and completely described above in connection with the embodiments and the accompanying drawings, so that the objects, the features and the effects of the present invention can be fully understood. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions.

The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.

Claims

1. Clamping workstation based on dysmorphism processing, including base (1), its characterized in that: a rotatable mounting plate (9) is arranged in the middle of the base (1), a supporting portion (18) for machining a special-shaped part is arranged on the upper surface of the mounting plate (9), multiple groups of first clamping mechanisms for laterally clamping the special-shaped part are arranged on the upper surface of the supporting portion (18), and the multiple groups of first clamping mechanisms are distributed in an annular array;

every group first fixture includes two first fixed slide rails (21) and mounting panel (35), two first fixed slide rails (21) fixed mounting is on supporting part (18) upper surface, two inside slidable mounting respectively of first fixed slide rails (21) has second rack (22), two the end fixing that first fixed slide rail (21) was kept away from in second rack (22) has fixed block (32), every fixed block (32) articulates through connecting piece (33) respectively has installation piece (34), two installation piece (34) slidable mounting respectively in the spout that mounting panel (35) rear side was seted up, two rotatable first contact pressure heads (23) are installed to the front side of mounting panel (35), logical groove slidable mounting that mounting disc (9) were seted up through it has first rack (17), first rack (17) are close to the one end fixed mounting of first fixed slide rail (21) and have second installing frame (30), a second rotating gear (31) meshed with the second rack (22) is rotatably arranged in the second mounting frame (30);

the upper surface of the base (1) is provided with a meshing transmission mechanism used for the first rack (17) where the first clamping mechanism is located to perform telescopic motion.

2. The clamping worktable based on profile processing according to claim 1, characterized in that: meshing transmission mechanism installs interior ring gear (13) at mounting disc (9) inner wall including rotating, it installs a plurality of connecting axles (16), every to rotate on mounting disc (9) the lower part fixed mounting of connecting axle (16) has first transmission tooth (15) with interior ring gear (13) engaged with, the upper portion fixed mounting of connecting axle (16) has second transmission tooth (39) with first rack (17) engaged with mutually.

3. The clamping workstation based on a dysmorphism processing of claim 1 characterized in that: the top of base (1) still is provided with and is used for driving interior ring gear (13) pivoted actuating mechanism, actuating mechanism includes outer ring gear (10), outer ring gear (10) are through a plurality of connecting strip (14) and interior ring gear (13) fixed connection, the top fixed mounting of base (1) has second motor (11), gear (12) with outer ring gear (10) engaged with are installed to the output shaft of second motor (11).

4. The clamping worktable based on profile processing according to claim 1, characterized in that: the top fixed mounting of base (1) has support frame (3), the interior top fixed mounting of support frame (3) has first motor (4), mounting bar (5) are installed to the output shaft of first motor (4), the lower surface mounting that mounting bar (5) are close to the middle part has processing head (7), electronic spout has been seted up near the lower surface of both sides in mounting bar (5), electronic spout slidable mounting has two relative electronic sliders (6), every the lower surface of electronic slider (6) is provided with respectively and is used for the vertical tight second fixture of pressing from both sides of dysmorphism.

5. The clamping worktable based on profile processing according to claim 4, characterized in that: second fixture includes two fixed slide rails of second (25) and electric telescopic handle (29), electric telescopic handle (29) fixed mounting is in the bottom of electric slider (6), the output fixed mounting of electric telescopic handle (29) has first installing frame (28), the internal rotation of first installing frame (28) is installed first rotation tooth (27), two fixed slide rail of second (25) is respectively through installed part (8) fixed mounting in the bottom of electric slider (6), two the inside difference slidable mounting of the fixed slide rail of second (25) has third rack (24), two third rack (24) all with first rotation tooth (27) meshing transmission, two the bottom difference fixed mounting second contact pressure head (26) of third rack (24).

6. The clamping worktable based on profile processing according to claim 5, characterized in that: the second contact pressure head (26) and the first contact pressure head (23) are both made of rubber materials.

7. The clamping worktable based on profile processing according to claim 6, characterized in that: the dust collection device is characterized in that a dust collection mechanism is arranged inside the base (1), the dust collection mechanism comprises a plurality of guide grooves (19) formed in the upper surface of the supporting portion (18) and a dust collection port (20) formed in the middle of the upper surface of the supporting portion, the guide grooves (19) are communicated with the dust collection port (20), a dust collection box (37) is fixedly mounted on the inner wall of the base (1), a dust collection pipe (36) is rotatably mounted at the bottom of the dust collection port (20), and one end, far away from the dust collection port (20), of the dust collection pipe (36) extends into the dust collection box (37) and is provided with a dust collector (38).

8. The clamping worktable based on profile processing according to claim 1, characterized in that: the front side of the base (1) is provided with a door body (2).