CN115476185A

CN115476185A - Plate fixing device for metal forming machine tool

Info

Publication number: CN115476185A
Application number: CN202211235153.5A
Authority: CN
Inventors: 蒋星桐; 施春标; 周晓敏
Original assignee: Rondge Jiangsu Precision Machine Tool Co ltd
Current assignee: Rondge Jiangsu Precision Machine Tool Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2022-12-16

Abstract

The invention discloses a plate fixing device for a metal forming machine tool, which comprises a machine tool workbench, a placing table and a supporting rod, wherein a dismounting structure is arranged at the top end of the machine tool workbench, an adjusting mechanism is arranged on one side of the placing table, and limiting mechanisms are arranged on the outer sides of screw rods. The controller is used for simultaneously starting the two groups of second hydraulic push rods to respectively push the two groups of clamping plates to drive the two groups of grinding plate contact screw rods to increase the friction force between the screw rods and the clamping plates, so that the effect of clamping and fixing the two groups of screw rods by the four groups of clamping plates is conveniently enhanced, the situation that the screw rods are reversed is prevented, the effect of pressing and fixing the plates is influenced, the two groups of slide rods slide along the inner walls of the two groups of sleeve rods along with the movement of the clamping plates for guiding, and meanwhile, the limit blocks prevent the slide rods from sliding out of the inner parts of the sleeve rods, so that the clamping and limiting functions of the device are realized, the functionality of the device is improved, the pressure plates are prevented from being deviated, and the effect of fixing the plates is ensured.

Description

Plate fixing device for metal forming machine tool

Technical Field

The invention relates to the technical field of metal forming machine tools, in particular to a plate fixing device for a metal forming machine tool.

Background

A forming machine is a machine for machining a linear tool path using a linear relative motion between a workpiece and a single point cutting tool, the cutting of which is similar to that of a lathe, but the prototype is linear rather than spiral, and is mainly classified into a standard type, a pull-cut type, a horizontal type, a general type, a vertical type, a gear type, a crank type, a hydraulic type, a profile type, and a moving head, the most common of which is horizontally arranged, while a metal working forming machine is somewhat similar to a metal working planer, in which a tool rides on a ram that moves relative to a stationary workpiece, rather than a workpiece moving under the tool, a plunger is generally driven by a mechanical crank in a column, while an existing metal forming machine works a metal plate, as the metal plate shakes, it affects the path of the tool on the metal forming machine to a certain extent, and thus it is very necessary to use a plate fixing device, which can enhance the stability of the metal plate;

1. when the plate on the metal forming machine tool needs to be fixed, the common plate fixing device is fixed at a fixed interval, so that the size and the specification of the processed metal plate are limited, and the usable range of the device is seriously influenced;

2. it is unable spacing to stop rotatory screw rod, thereby be not convenient for press from both sides tight fixed action to the screw rod after rotatory stopping, and can't guarantee to the stability that has removed to the suitable position movable block on the screw rod, the screw rod on traditional panel fixing device for metal forming lathe is mostly directly placed after stopping, can't press from both sides tight fixed to it, can make stall's screw rod along with placing rocking of platform the condition that reverses, lead to the movable block that has adjusted to reverse along with reversing of screw rod and carry out the reverse motion, and drive first hydraulic push rod through the bracing piece and remove, make its below clamp plate can't align panel and push down the dislocation, influence panel and press the fixed effect, thereby make the practicality of device reduce.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide a plate fixing device for a metal forming machine tool, which aims to solve the problem that a screw is inconvenient to limit in the background technology.

Disclosure of the invention

In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a panel fixing device for metal forming machine tool, includes the lathe workstation, places platform and bracing piece, the top of lathe workstation is provided with dismantles the structure, and the top of dismantling the structure is fixed with places the platform, the controller is installed to one side of lathe workstation, the one side of placing the platform is provided with adjustment mechanism, and one side of adjustment mechanism installs the screw rod, the shifting chute has all been seted up to the inside of placing the bench top, the shaft coupling piece is installed to one side of screw rod, the outside of screw rod all is provided with stop gear, and one side of stop gear installs the baffle, adjustment mechanism's top is fixed with the bracing piece, the top of bracing piece is fixed with the backup pad, and the top of backup pad installs first hydraulic push rod, and the bottom mounting of first hydraulic push rod has the clamp plate, stop gear includes dull polish board, splint, slide bar, stopper, loop bar, second hydraulic push rod and connecting block, the second hydraulic push rod is installed in one side of baffle, one side of second hydraulic push rod is fixed with the connecting block, both ends of splint one side all are fixed with the loop bar, and the outside cover of slide bar is equipped with the fixed with the dull polish board.

Use this technical scheme's panel fixing device for metal forming machine tool, start two sets of second hydraulic push rods simultaneously through two sets of connecting blocks and promote two sets of dull polish boards respectively through two sets of connecting blocks and drive two sets of dull polish boards and be close to and contact the screw rod and increase the frictional force between screw rod and the splint, be convenient for strengthen four group's splint and press from both sides the tight fixed effect with two sets of screw rods, lead to two sets of bracing pieces to move with the panel skew along the reversing drive two sets of clamp plates of screw rod, influence the fixed effect of panel pressure, drive two sets of stoppers respectively along the inner wall of two sets of loop bars through the removal of two sets of slide bars along with splint and slide the direction, the stopper prevents the inside of slide bar roll-off loop bar simultaneously.

Preferably, the dismounting structure comprises a sliding block, a fixing block, a connecting rod, a rotating handle and a supporting block, the sliding block is inserted into the machine tool workbench, the fixing block is inserted into the top end of the sliding block, the connecting rod is fixed to the top end of the fixing block, the rotating handle is fixed to the top end of the connecting rod, and the supporting block is sleeved on the outer side of the connecting rod. The four groups of rotating handles are sequentially rotated to drive the four groups of fixed blocks to leave the inside of the sliding block respectively through the upward movement of the four groups of connecting rods in threaded engagement with the supporting block, then the placing table is pulled to drive the integrated sliding block to slide out of the machine tool workbench for dismounting and cleaning, the cleaned placing table drives the sliding block to be inserted into the machine tool workbench and slide to the original position, then the four groups of rotating handles are sequentially rotated to drive the four groups of fixed blocks to reversely rotate through the four groups of connecting rods to be inserted into the sliding block to be compressed and fixed, and the sliding block is prevented from shaking in the machine tool workbench.

Preferably, the outer wall of the connecting rod is provided with an external thread, the inner wall of the supporting block is provided with an internal thread, and the connecting rod and the supporting block form a rotating structure through the meshing of the internal thread and the external thread. The rotating handle rotates the connecting rod to move up and down along the inner wall of the supporting block through threaded engagement, so that the fixing block is driven to be rapidly inserted into or separated from the inside of the sliding block.

Preferably, the fixed blocks are symmetrically distributed in the top end of the sliding block relative to the vertical center line of the sliding block, so that the symmetrically distributed fixed blocks are inserted into the sliding block, the sliding block is kept stable in a workbench of a machine tool, and four groups of the fixed blocks are arranged. The four groups of fixed blocks are inserted into the sliding block to strengthen the stability of the sliding block.

Preferably, the adjusting mechanism comprises a servo motor, a moving block, a guide block and a sliding groove, the moving block is fixed to the bottom end of the supporting rod, the guide block is fixed to the bottom end of the moving block, the sliding groove is sleeved on the outer side of the guide block, and the servo motor is fixed to one side of the moving block. The servo motor is started to drive the two groups of screws connected through the coupling block to rotate, the two groups of moving blocks are meshed with the two groups of screw threads to drive the two groups of guide blocks to respectively perform sliding guide along the inner walls of the two groups of sliding grooves, and the distance between the two groups of pressing plates is adjusted by the two groups of moving blocks approaching or separating from each other along the surfaces of the two groups of screws, so that the plates of different specifications can be flexibly fixed.

Preferably, the moving blocks and the screw rods are meshed through threads to form a rotating structure, the two groups of moving blocks are meshed with the threads of the two groups of screw rods in opposite directions respectively, the two groups of moving blocks are convenient to drive the two groups of supporting rods to approach or separate from each other respectively, and the guide blocks and the sliding grooves form a sliding structure. The guide block slides along the inner wall of the sliding groove along with the movement of the moving block, so that the moving block is convenient to guide, and the shaking is prevented.

Preferably, the moving block and the supporting rod are of a welding integrated structure, so that the moving block is connected with the supporting rod more tightly, the moving block drives the first hydraulic push rod and the pressing plate on the supporting plate to move through the supporting rod conveniently, and the moving block and the guide block are located on the same vertical line. The guide block is enabled to move along the inner wall of the sliding groove, and the linear motion of the moving block is convenient to guarantee.

Preferably, the slide bar is welding integral structure with the stopper, makes the slide bar be connected more firmly with the stopper, is convenient for prevent slide bar and stopper separation, the slide bar constitutes sliding structure with the loop bar. The sliding rod drives the limiting block to slide along the inner wall of the sleeve rod, so that the movable clamping plate can be guided conveniently.

Preferably, the slide bar is the symmetric distribution about the horizontal center line of splint in one side of splint, makes the stability of splint be guaranteed to two sets of slide bars of symmetric distribution, prevents that splint from driving the dull polish board and being close to the screw rod and squint, splint are provided with two sets ofly. The two groups of clamping plates are gradually close to and contact with the screw rod, so that the screw rod is conveniently clamped and limited, the screw rod is prevented from being reversed, and the effect of pressing and fixing the two groups of pressing plates is influenced.

Preferably, the second hydraulic push rod is connected with the clamping plate through the connecting block, so that the second hydraulic push rod drives the clamping plate to move back and forth through the connecting block, the screw rod is convenient to clamp and limit, and the sanding plate and the clamping plate are located on the same horizontal plane. Make splint drive dull polish board be close to and contact the screw rod, the dull polish board of being convenient for increases the frictional force between screw rod and the splint, prevents that the screw rod from appearing the circumstances of down-rotating.

(III) advantageous effects

Compared with the prior art, the invention has the beneficial effects that: this panel fixing device for metal forming machine tool is rational in infrastructure, has following advantage:

(1) The controller is used for simultaneously starting the two groups of second hydraulic push rods to respectively push the two groups of clamping plates to drive the two groups of grinding plate contact screw rods to increase the friction force between the screw rods and the clamping plates, so that the effect of clamping and fixing the two groups of screw rods by the four groups of clamping plates is facilitated to be enhanced, the situation that the screw rods are reversed is prevented, the effect of pressing and fixing the plates is influenced, the two groups of slide rods slide along the inner walls of the two groups of sleeve rods along with the movement of the clamping plates and are guided in a sliding manner, and meanwhile, the limit blocks prevent the slide rods from sliding out of the inner parts of the sleeve rods, so that the clamping and limiting functions of the device are realized, the functionality of the device is improved, the pressure plates are prevented from being deviated, and the effect of fixing the plates is ensured;

(2) The four groups of rotating handles sequentially rotate the four groups of connecting rods to respectively drive the four groups of fixed blocks to leave the inside of the sliding block through threaded engagement, then the placing table is pulled to drive the sliding block to slide out of the machine tool workbench for dismounting and cleaning, the cleaned placing table drives the sliding block to be inserted into the machine tool workbench and slide to the original position, and then the four groups of connecting rods are rotated to drive the four groups of fixed blocks to reversely rotate and be inserted into the sliding block to be tightly pressed and fixed, so that the quick dismounting function of the device is realized, the convenience of the device is improved, the dismounting difficulty is reduced, and the neatness of the surface of the placing table is ensured;

(3) The servo motor is started to drive the two sets of screw rods connected through the coupling block to rotate, then the two sets of guide blocks are driven by the two sets of moving blocks through thread meshing to respectively slide along the inner walls of the two sets of sliding grooves, and the distance between the two sets of pressing plates is adjusted by mutually approaching or separating the two sets of moving blocks along the surfaces of the two sets of screw rods, so that the flexible adjusting function of the device is realized, the range of the size of a plate which can be fixed by the device is increased, and the effect of a machine tool on plate processing is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a schematic side view of the cross-sectional structure of the present invention;

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

FIG. 4 is an enlarged partial cross-sectional view taken at A in FIG. 1 according to the present invention;

FIG. 5 is a three-dimensional cross-sectional structural diagram of a disassembled structure according to the present invention;

FIG. 6 is a schematic front sectional view of an adjusting mechanism according to the present invention;

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

fig. 8 is a schematic three-dimensional structure diagram of the limiting mechanism of the present invention.

The reference numerals in the figures illustrate: 1. a machine tool table; 2. disassembling the structure; 201. a slider; 202. a fixed block; 203. a connecting rod; 204. turning a handle; 205. a support block; 3. a placing table; 4. an adjustment mechanism; 401. a servo motor; 402. a moving block; 403. a guide block; 404. a chute; 5. a moving groove; 6. a support bar; 7. a first hydraulic push rod; 8. a support plate; 9. a limiting mechanism; 901. sanding a plate; 902. a splint; 903. a slide bar; 904. a limiting block; 905. a loop bar; 906. a second hydraulic push rod; 907. connecting blocks; 10. a coupling block; 11. pressing a plate; 12. a partition plate; 13. a screw; 14. and a controller.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

Referring to fig. 1-8, the plate fixing device for a metal forming machine tool provided by the present invention comprises a machine tool workbench 1, a placing table 3 and a support rod 6, wherein a disassembling structure 2 is arranged at the top end of the machine tool workbench 1, and a placing table 3 is fixed at the top end of the disassembling structure 2, a controller 14 is arranged at one side of the machine tool workbench 1, an adjusting mechanism 4 is arranged at one side of the placing table 3, and one side of the adjusting mechanism 4 is provided with a screw 13, the inner part of the top end of the placing table 3 is provided with a moving groove 5, one side of the screw 13 is provided with a coupling block 10, the outer side of the screw 13 is provided with a limiting mechanism 9, and one side of the limiting mechanism 9 is provided with a clapboard 12, the top end of the adjusting mechanism 4 is fixed with a supporting rod 6, the top end of the supporting rod 6 is fixed with a supporting plate 8, and the top end of the supporting plate 8 is provided with a first hydraulic push rod 7, the bottom end of the first hydraulic push rod 7 is fixed with a pressing plate 11, the limiting mechanism 9 comprises a sanding plate 901, a clamping plate 902, a sliding rod 903, a limiting block 904, a loop bar 905, a second hydraulic push rod 906 and a connecting block 907, the second hydraulic push rod 906 is arranged at one side of the partition plate 12, one side of the second hydraulic push rod 906 is fixed with the connecting block 907, a clamping plate 902 is fixed on one side of the connecting block 907, a sliding rod 903 is fixed on both ends of one side of the clamping plate 902, and the outside cover of slide bar 903 is equipped with loop bar 905, one side of slide bar 903 is fixed with stopper 904, one side of splint 902 is fixed with dull polish 901, slide bar 903 and stopper 904 are the welding integrated structure, slide bar 903 and loop bar 905 constitute sliding construction, slide bar 903 is in the symmetrical distribution about the horizontal central line of splint 902 in one side of splint 902, splint 902 is provided with two sets ofly, second hydraulic push rod 906 is connected with splint 902 through connecting block 907, dull polish 901 and splint 902 are located the coplanar.

The working principle of the plate fixing device for the metal forming machine tool based on the first embodiment is as follows: the device is installed on a machine tool workbench 1 through a dismounting structure 2 and is externally connected with a power supply, the adjusting mechanism 4 and a screw 13 rotate to drive two groups of pressing plates 11 on a first hydraulic push rod 7 through a supporting rod 6 and a supporting plate 8 to adjust the distance between the two groups of pressing plates 11, so that metal plates with different sizes and specifications can be conveniently compressed and fixed, then a controller 14 starts two groups of first hydraulic push rods 7 to respectively push two groups of pressing plates 11 to move downwards to compress and fix the metal plates placed on a placing table 3, the effect of the metal forming machine tool on plate processing is ensured, two groups of second hydraulic push rods 906 are simultaneously started through a controller 14, the two groups of second hydraulic push rods 906 respectively push two groups of clamping plates 902 through two groups of connecting blocks 907 to drive two groups of grinding plates 901 to approach and contact the screw 13, the grinding plates 901 to increase the friction force between the screw 13 and the clamping plates 902 through the controller 14, the effect that the two groups of clamping plates 902 clamp the two groups of screw rods 902 to fix the two groups of screw rods 902 is conveniently enhanced, the stability of the two groups of screw 13 is ensured, the situation that the screw 13 is reversed due to prevent the screw 13 from shaking caused by collision of the two groups of supporting rods 6 driving the two groups of pressing plates 11 to move along with the reversing of pressing plates 11 and the fastening plates, the clamping plates, the inner walls of the clamping plates 904, and the clamping plates move along with the inner walls of the clamping rods 904, and the clamping plates 904, and the inner walls of the clamping plates 904, and the clamping plates are prevented from sliding sleeve rods 904, and the limiting blocks 904, and the sliding rod is prevented from sliding rod, and the inner wall of the limiting blocks 904, and the clamping plates 904.

Example two

The embodiment comprises the following steps: the dismounting structure 2 comprises a sliding block 201, fixing blocks 202, a connecting rod 203, a rotating handle 204 and a supporting block 205, the sliding block 201 is inserted in the machine tool workbench 1, the fixing blocks 202 are inserted in the sliding block 201, the connecting rod 203 is fixed to the top end of the fixing block 202, the rotating handle 204 is fixed to the top end of the connecting rod 203, the supporting block 205 is sleeved on the outer side of the connecting rod 203, external threads are formed in the outer wall of the connecting rod 203, internal threads are formed in the inner wall of the supporting block 205, the connecting rod 203 and the supporting block 205 form a rotating structure through the engagement of the internal threads and the external threads, the fixing blocks 202 are symmetrically distributed in the sliding block 201 on the vertical center line, and the four groups of the fixing blocks 202 are arranged.

In this embodiment, four sets of connecting rods 203 are sequentially rotated by four sets of rotating handles 204, so that the connecting rods 203 move upwards along the inner wall of the supporting block 205 through being in threaded engagement with the supporting block 205, the four sets of connecting rods 203 moving upwards respectively drive the four sets of fixed blocks 202 to leave the interior of the sliding block 201, then the placing table 3 is pulled to drive the integrated sliding block 201 to slide out of the machine tool table 1 for disassembly and cleaning, the neatness of the surface of the placing table 3 is ensured, the cleaned placing table 3 drives the sliding block 201 to align and insert into the machine tool table 1 and slide to the original position, so that the four sets of insertion holes in the sliding block 201 are respectively aligned with the four sets of fixed blocks 202, then the four sets of rotating handles 204 are sequentially rotated through the four sets of connecting rods 203 to drive the four sets of fixed blocks 202 to reversely rotate and insert into the sliding block 201 to compress and fix the sliding block 201, and the sliding block 201 is prevented from shaking in the machine tool table 1.

EXAMPLE III

The embodiment comprises the following steps: adjusting mechanism 4 includes servo motor 401, movable block 402, guide block 403 and spout 404, and movable block 402 is fixed in the bottom of bracing piece 6, and the bottom of movable block 402 is fixed with guide block 403, and the outside cover of guide block 403 is equipped with spout 404, and one side of movable block 402 is fixed with servo motor 401, and movable block 402 constitutes rotating-structure with screw 13 through threaded engagement, and guide block 403 constitutes sliding structure with spout 404, and movable block 402 is welding integrated structure with bracing piece 6, and movable block 402 is located same vertical line with guide block 403.

In this embodiment, drive two sets of screws 13 that connect through coupling piece 10 through starting servo motor 401 and rotate, two sets of movable blocks 402 that follow back and two sets of bracing pieces 6 integration drive two sets of guide blocks 403 through screw 13 thread engagement opposite with two sets of direction of rotation and slide along the inner wall of two sets of spouts 404 respectively, thereby play the effect of leading to movable block 402, guarantee movable block 402 linear motion's effect, adjust the distance between two sets of clamp plates 11 through two sets of movable blocks 402 along the surface of two sets of screws 13 is close to each other or separate, be convenient for carry out nimble fixed to the panel of different specifications.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a panel fixing device for metal forming machine tool, includes lathe workstation (1), places platform (3) and bracing piece (6), its characterized in that: a dismounting structure (2) is arranged at the top end of the machine tool workbench (1), a placing table (3) is fixed at the top end of the dismounting structure (2), and a controller (14) is installed at one side of the machine tool workbench (1);

an adjusting mechanism (4) is arranged on one side of the placing table (3), a screw rod (13) is installed on one side of the adjusting mechanism (4), a moving groove (5) is formed in the top end of the placing table (3), a coupling block (10) is installed on one side of the screw rod (13), a limiting mechanism (9) is arranged on the outer side of the screw rod (13), a partition plate (12) is installed on one side of the limiting mechanism (9), and a supporting rod (6) is fixed on the top end of the adjusting mechanism (4);

the top of bracing piece (6) is fixed with backup pad (8), and first hydraulic rod (7) is installed on the top of backup pad (8), and the bottom of first hydraulic rod (7) is fixed with clamp plate (11), stop gear (9) are including dull polish board (901), splint (902), slide bar (903), stopper (904), loop bar (905), second hydraulic rod (906) and connecting block (907), second hydraulic rod (906) are installed in one side of baffle (12), one side of second hydraulic rod (906) is fixed with connecting block (907), and one side of connecting block (907) is fixed with splint (902), the both ends of splint (902) one side all are fixed with slide bar (903), and the outside cover of slide bar (903) is equipped with loop bar (905), one side of slide bar (903) is fixed with stopper (904), one side of splint (902) is fixed with dull polish board (901).

2. The plate fixing device for a metal forming machine tool according to claim 1, wherein: dismantle structure (2) and include slider (201), fixed block (202), connecting rod (203), change handle (204) and supporting shoe (205), slider (201) are inserted and are established the inside of lathe workstation (1), the inside on slider (201) top all is inserted and is equipped with fixed block (202), and the top of fixed block (202) is fixed with connecting rod (203), the top of connecting rod (203) is fixed with and changes handle (204), the outside cover of connecting rod (203) is equipped with supporting shoe (205).

3. The plate fixing device for a metal forming machine tool according to claim 2, wherein: the outer wall of the connecting rod (203) is provided with an external thread, the inner wall of the supporting block (205) is provided with an internal thread, and the connecting rod (203) and the supporting block (205) form a rotating structure through the meshing of the internal thread and the external thread.

4. The plate fixing device for a metal forming machine tool according to claim 2, wherein: the fixed blocks (202) are symmetrically distributed in the top end of the sliding block (201) relative to the vertical center line of the sliding block (201), and four groups of the fixed blocks (202) are arranged.

5. The plate fixing device for the metal forming machine tool according to claim 1, wherein: the adjusting mechanism (4) comprises a servo motor (401), a moving block (402), a guide block (403) and a sliding groove (404), the moving block (402) is fixed at the bottom end of the supporting rod (6), the guide block (403) is fixed at the bottom end of the moving block (402), the sliding groove (404) is sleeved on the outer side of the guide block (403), and the servo motor (401) is fixed on one side of the moving block (402).

6. The plate fixing device for a metal forming machine tool according to claim 5, wherein: the moving block (402) and the screw (13) are meshed through threads to form a rotating structure, and the guide block (403) and the sliding groove (404) form a sliding structure.

7. The plate fixing device for a metal forming machine tool according to claim 5, wherein: the moving block (402) and the support rod (6) are of a welding integrated structure, and the moving block (402) and the guide block (403) are located on the same vertical line.

8. The plate fixing device for a metal forming machine tool according to claim 1, wherein: the sliding rod (903) and the limiting block (904) are of a welding integrated structure, and the sliding rod (903) and the sleeve rod (905) form a sliding structure.

9. The plate fixing device for the metal forming machine tool according to claim 1, wherein: the sliding rods (903) are symmetrically distributed on one side of the clamping plate (902) relative to the horizontal center line of the clamping plate (902), and two groups of the clamping plate (902) are arranged.

10. The plate fixing device for a metal forming machine tool according to claim 1, wherein: the second hydraulic push rod (906) is connected with the clamping plate (902) through a connecting block (907), and the sanding plate (901) and the clamping plate (902) are located on the same horizontal plane.