Clamping and positioning structure for machining of multi-shaft engraving and milling machine and engraving and milling machine

Abstract

The invention belongs to the technical field of multi-shaft engraving and milling machines, and discloses a clamping and positioning structure for machining of a multi-shaft engraving and milling machine and the engraving and milling machine. The clamping and positioning structure comprises a multi-shaft engraving and milling machine body, a clamping and positioning part is arranged in the multi-shaft engraving and milling machine body, and the clamping and positioning part comprises a set of L-shaped supporting plates; the outer walls of the ends, close to the tops, of the L-shaped supporting plates are fixedly connected with rubber clamping plates. An electric cylinder synchronously drives a moving plate and a sliding plate to move upwards and drives two connected hinge plates to incline at the same time, so that the sliding plate is driven to horizontally slide on the moving plate, meanwhile, an L-shaped supporting plate is driven to conduct guiding translation, the passive translation directions of the sliding plate and the L-shaped supporting plate are the same, and therefore a rubber clamping plate is driven to clamp and position the outer wall of a machining plate; the toothed plate which moves downwards passively can drive the piston plate to move downwards, so that gas in the piston cylinder is drawn, negative pressure is generated in the gas plate, secondary positioning of negative pressure adsorption on the machining plate is achieved, and it is guaranteed that the machining plate does not shake or deviate or is not stable in the multi-axis fine carving process.

Description

Technical Field

[0001] The invention belongs to the technical field of multi-axis precision engraving machines, and in particular is a clamping and positioning structure for multi-axis precision engraving machine processing and a precision engraving machine. Background Art

[0002] Multi-axis engraving machine is a kind of CNC machine tool. Metal engraving machine can perform non-contact cutting and punching on metal or non-metal plates and pipes. Through multi-axis, it can engrave both sides of a plate at the same time. It is particularly suitable for laser cutting of stainless steel plates, iron plates, silicon wafers, ceramic sheets, titanium alloys, epoxy, A3 steel, diamond and other materials. The equipment has stable and reliable operation, good processing quality, high efficiency, simple operation and convenient maintenance.

[0003] When the existing multi-axis engraving machine is engraving the processing plate, its existing clamping and positioning device generally manually adjusts the distance between the clamping and positioning device and the processing plate. Such positioning efficiency is low. If the existing metal mechanical clamping means is used, it may cause damage to the surface of the processing plate at the moment of contact with the processing plate, affecting the surface quality of the processing plate. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a clamping and positioning structure for multi-axis precision engraving machine processing and a precision engraving machine.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a clamping and positioning structure for multi-axis precision engraving machining, comprising a clamping and positioning part, wherein the clamping and positioning part comprises a group of L-shaped support plates, a group of L-shaped support plates are fixedly connected to the outer wall of one end close to the top, a group of L-shaped support plates are jointly provided with a rotation and translation structure, and a group of rubber clamp plates can be driven to move in opposite directions by the rotation and translation structure, thereby achieving non-damaging clamping of the processing plate, and the rotation and translation structure is specifically provided with two stretching and negative pressure structures, and the processing plate can be reinforced at the second level by the two stretching and negative pressure structures;

[0006] The two stretching negative pressure structures each include a piston plate, a piston cylinder is slidably connected to the outer wall of the piston plate, a telescopic sleeve is movably sleeved on the outer wall of the piston cylinder, and an air plate is fixedly connected to the top outer wall of the piston cylinder. Negative pressure can be generated by the movement of the piston, thereby positioning and reinforcing the processing plate.

[0007] Preferably, the rotational translation structure includes an electric cylinder fixedly connected to the inner wall of the multi-axis precision engraving machine body, a shift plate fixedly connected to the top of the electric cylinder, and slide plates are slidably connected to both side plates of the shift plate. The electric cylinder is also specifically connected with a groove plate through which it is slidably connected, and the two side plates of the groove plate are respectively slidably connected to a section of a plate of a group of L-shaped support plates.

[0008] Preferably, a first folding plastic plate is fixedly connected to the outer wall of one end of a group of L-shaped support plates, and hinge plates are movably sleeved on the outer walls of both ends of the two slides, and the other sides of the two groups of hinge plates are movably sleeved on the inner walls of one end of the slide and the L-shaped support plate respectively.

[0009] Preferably, the two stretching negative pressure structures each specifically include a meshing assembly, which is specifically composed of a spur gear and a toothed plate meshingly connected to the two sides of the spur gear. A U-shaped frame is movably sleeved on the center position of the spur gear, and the bottom end of the U-shaped frame is fixedly connected to the outer wall of one end of the groove plate.

[0010] Preferably, a smooth outer wall at one end of one of the toothed plates is fixedly connected to an inner wall at one end of the shifting plate, and an L-shaped connecting plate is fixedly connected to a smooth outer wall at one end of the other toothed plate, and a screw is threadedly connected to the L-shaped connecting plate.

[0011] Preferably, the top of the screw rod is movably sleeved with a limit plate, the outer wall on one side of the bottom end of the limit plate is fixedly connected to the top side wall of the shift plate, and the inner wall of the limit plate is fitted and slidably connected to the outer wall of the L-shaped connecting plate.

[0012] Preferably, the bottom end of the telescopic sleeve is fixedly connected to the top outer wall of the shift plate, a filter screen is fixedly connected to the top inner wall of the piston cylinder, and a plurality of filter residue grooves are jointly provided on the outer wall of the filter screen and the outer wall of the piston cylinder near the top.

[0013] Preferably, a plurality of springs are fixedly connected in a surrounding manner in the inner wall of the filter screen plate near the top, and a second folded plastic plate is fixedly connected to each of the springs.

[0014] Preferably, two slag collecting cylinder plates are tightly clamped on the outer wall of the piston cylinder near the top, and the two slag collecting cylinder plates are specifically composed of magnetic plates that are magnetically attracted to each other.

[0015] A multi-axis precision engraving machine comprises a multi-axis precision engraving machine body, a machine door is hinged on the multi-axis precision engraving machine body, a numerical control box is fixedly connected to the outer wall of one end of the multi-axis precision engraving machine body, a breathable workbench is fitted and connected to the bottom end of the machine door, a sealing plug plate is penetrated and clamped on one end of the breathable workbench, the top ends of the two air plates are specifically fit-fitted and connected to the top inner wall of the breathable workbench, and two rectangular grooves are penetrated and provided on the top of the breathable workbench for fit-fitting and sliding connection with two L-shaped support plates respectively, the outer wall of the L-shaped support plate is fixedly connected to the inner wall of the breathable workbench, and the bottom inner wall of the multi-axis precision engraving machine body is fixedly connected to the bottom outer wall of the electric cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention drives the shift plate and the slide plate on the shift plate to move up synchronously through the electric cylinder, and the slide plate will push up and drive the two connected hinge plates to tilt at the same time, so that the two passively tilted hinge plates can make the slide plate slide horizontally on the shift plate, and at the same time drive the L-shaped support plate connected to the groove plate to guide translation, and the moving path of the L-shaped support plate is the same as the passive translation direction of the slide plate, thereby driving the rubber clamping plate on the L-shaped support plate to clamp and position the outer wall of the processing plate, and the rubber clamping plate itself is made of natural rubber material, so when the processing plate is clamped and positioned, its outer wall will not be damaged, and the contact between the natural rubber and the processing plate can also increase the friction between the two, so as to better produce the positioning effect, and when the L-shaped support plate moves, it will also drive the first folding plastic plate fixedly connected to one end of the rectangular groove to unfold, so that after the rubber clamping plate clamps the processing plate, the rectangular groove is blocked to prevent some plate chips generated on the processing plate from entering the clamping and positioning part when the processing plate is finely carved;

[0018] The tooth plate passively moves downward, which drives the piston plate fixed on the top to move downward. The piston plate moves downward to draw gas in the piston cylinder, and the piston moves to generate negative pressure in the gas plate, so as to achieve negative pressure suction on the inner wall of the top of the breathable workbench, and realize secondary positioning of negative pressure adsorption on the processing plate placed on the surface of the breathable workbench, ensuring that the processing plate will not shake, deviate or become unstable during the multi-axis precision engraving process.

[0019] When the present invention generates negative pressure in the piston cylinder, the gas sucked into the piston cylinder will be filtered through the filter mesh plate to prevent the gas containing plate residue from entering the piston cylinder. At the same time, the negative pressure of the gas will drive the second folded plastic plate to elastically move downward on multiple springs, directly contact and fit the bottom inner wall of the filter mesh plate, and block the piston cylinder and the filter residue grooves provided on the filter mesh plate. Driven by the upward thrust of the tooth plate, the piston plate will drive the gas to move upward with a certain force, thereby causing the plate residue filtered in the filter mesh plate to enter the residue collecting cylinder plate from the filter residue groove for unified collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the door opening structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the workbench of the present invention;

[0023] Figure 4 It is a schematic diagram of the overall cross-sectional structure of the shift plate and the slot plate of the present invention;

[0024] Figure 5 It is a schematic diagram of the overall structure of the clamping and positioning part of the present invention;

[0025] Figure 6 It is a schematic diagram of the partial cross-section split structure of the clamping and positioning part of the present invention;

[0026] Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at center A;

[0027] Figure 8 It is a schematic diagram of the partial disassembly structure of the clamping and positioning part of the present invention.

[0028] In the figure:

[0029] 1. Multi-axis engraving machine body; 11. Machine door; 12. CNC box; 13. Ventilated workbench; 14. Sealing plug plate;

[0030] 2. Clamping and positioning part; 21. Electric cylinder; 22. Moving plate; 23. Slide plate; 24. Slot plate; 25. L-shaped support plate; 26. Rubber splint; 27. First folding plastic plate; 28. Hinge plate; 29. ​​Engaging assembly; 230. L-shaped connecting plate; 231. Screw; 232. Limiting plate; 233. Piston plate; 234. Piston cylinder; 235. Telescopic sleeve; 236. Filter screen plate; 237. Filter residue groove; 238. Spring; 239. Second folding plastic plate; 240. Residue collecting cylinder plate; 241. Air plate. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figures 1 to 8 As shown, the present invention provides a clamping and positioning structure for multi-axis precision engraving machining, including a clamping and positioning part 2, wherein the clamping and positioning part 2 includes a group of L-shaped support plates 25, and a rubber clamp 26 is fixedly connected to the outer wall of one end of the group of L-shaped support plates 25 close to the top, and a rotational translation structure is jointly provided between the group of L-shaped support plates 25, and the rotational translation structure can drive a group of rubber clamps 26 to move in opposite directions, thereby achieving damage-free clamping of the processing plate, and the rotational translation structure is specifically provided with two stretching and negative pressure structures, and the processing plate can be reinforced at the second level through the two stretching and negative pressure structures.

[0033] The above scheme is adopted: the upward moving electric cylinder 21 will synchronously drive the moving plate 22 and the slide plate 23 on the moving plate 22 to move upward. In the process of continuous upward movement, the slide plate 23 will push up and drive the two connected hinge plates 28 to tilt at the same time, so that the slide plate 23 slides horizontally on the moving plate 22, and at the same time drives the L-shaped support plate 25 connected to the groove plate 24 to guide and translate, thereby driving the rubber clamping plate 26 to clamp and position the outer wall of the processing plate. At the same time, when the moving plate 22 moves upward, it will also synchronously drive a tooth plate in the meshing assembly 29 to move upward synchronously, thereby driving the meshing plate with it. The engaged spur gear rotates, thereby driving the other toothed plate to move downward in the opposite direction. The toothed plate that moves downward passively will drive the piston plate 233 fixed on the top to move downward, so that the piston plate 233 moves downward to draw the gas in the piston cylinder 234, and the piston moves, so that negative pressure is generated in the gas plate 241, thereby achieving negative pressure suction on the inner wall of the top of the breathable workbench 13, and realizing secondary positioning of the processing plate placed on the surface of the breathable workbench 13 by negative pressure adsorption, ensuring that during the multi-axis precision engraving process, the processing plate will not shake, deviate or become unstable.

[0034] The rotating and translating structure includes an electric cylinder 21 fixedly connected to the inner wall of the multi-axis precision engraving machine body 1, a moving plate 22 is fixedly connected to the top of the electric cylinder 21, and slide plates 23 are slidably connected to the two side plates of the moving plate 22. The electric cylinder 21 is also specifically connected with a groove plate 24 through which it is slidably connected. The two side plates of the groove plate 24 are respectively connected to a section of a group of L-shaped support plates 25 for through-sliding connection. A first folding plastic plate 27 is fixedly connected to the outer wall of one end of a group of L-shaped support plates 25. Hinge plates 28 are movably sleeved on the outer walls of both ends of the two slide plates 23, and the other sides of the two groups of hinged plates 28 are movably sleeved on the inner walls of one end of the slide plate 23 and the L-shaped support plate 25, respectively.

[0035] By adopting the above scheme: the electric cylinder 21 will synchronously drive the shift plate 22 and the slide plate 23 on the shift plate 22 to move upward, and the slide plate 23 will push up and drive the two connected hinge plates 28 to tilt at the same time, so that the two passively tilted hinge plates 28 will make the slide plate 23 slide horizontally on the shift plate 22, and at the same time drive the L-shaped support plate 25 connected to the groove plate 24 to guide translation, and the moving path of the L-shaped support plate 25 is the same as the passive translation direction of the slide plate 23, thereby driving the rubber clamping plate 26 on the L-shaped support plate 25 to clamp and position the outer wall of the processing plate, and the rubber clamping plate 26 itself is made of natural rubber material, so when the processing plate is clamped and positioned, its outer wall will not be damaged. The contact between the natural rubber and the processing plate can also increase the friction between the two, thereby producing a better positioning effect. When the L-shaped support plate 25 moves, it will also drive the first folding plastic plate 27 fixedly connected to one end of the rectangular groove to unfold, so that after the rubber clamping plate 26 clamps the processing plate, the rectangular groove is blocked to prevent some board chips generated on the processing plate from entering the clamping and positioning part 2 when the processing plate is finely carved.

[0036] Each of the two stretching negative pressure structures also specifically includes a meshing component 29, which is specifically composed of a spur gear and a toothed plate meshingly connected to the spur gear on both sides. A U-shaped frame is movably sleeved on the center position of the spur gear, and the bottom end of the U-shaped frame is fixedly connected to the outer wall of one end of the groove plate 24, and the smooth outer wall of one end of a toothed plate is fixedly connected to the inner wall of one end of the shift plate 22. An L-shaped connecting plate 230 is fixedly connected to the smooth outer wall of one end of the other toothed plate, and a screw 231 is threadedly connected to the L-shaped connecting plate 230. The top of the screw 231 is movably sleeved with a limiting plate 232, and the outer wall of one side of the bottom end of the limiting plate 232 is fixedly connected to the top side wall of the shift plate 22, and the inner wall of the limiting plate 232 is fitted and slidably connected to the outer wall of the L-shaped connecting plate 230.

[0037] The above scheme is adopted: when the shift plate 22 moves upward, it will also synchronously drive a tooth plate in the meshing assembly 29 to move upward synchronously, thereby driving the spur gear meshing with it to rotate, thereby transmitting the other tooth plate to move downward in the opposite direction, and the downwardly moving tooth plate will be guided downward on the screw rod 231 and under the limit of the limit plate 232 through the installed L-shaped connecting plate 230, and the screw rod 231 connected to the L-shaped connecting plate 230 will be driven by the downward movement of the L-shaped connecting plate 230 to rotate in the limit plate 232.

[0038] The two stretching negative pressure structures each include a piston plate 233, a piston cylinder 234 is slidably connected to the outer wall of the piston plate 233, a telescopic sleeve 235 is movably sleeved on the outer wall of the piston cylinder 234, and an air plate 241 is fixedly connected to the outer wall of the top of the piston cylinder 234, and negative pressure can be formed by the movement of the piston, so as to position and reinforce the processing plate;

[0039] The bottom end of the telescopic sleeve 235 is fixedly connected to the top outer wall of the shift plate 22, a filter screen plate 236 is fixedly connected to the top inner wall of the piston cylinder 234, a plurality of filter residue grooves 237 are jointly provided on the outer wall of the filter screen plate 236 and the outer wall of the piston cylinder 234 near the top, a plurality of springs 238 are fixedly connected in a surrounding manner to the inner wall of the filter screen plate 236 near the top, a second folding plastic plate 239 is jointly fixedly connected to each spring 238, two residue collecting cylinder plates 240 are also tightly clamped on the outer wall of the piston cylinder 234 near the top, and the two residue collecting cylinder plates 240 are specifically composed of magnetic plates that are magnetically attracted to each other.

[0040] By adopting the above scheme, the passively downward-moving toothed plate will drive the piston plate 233 fixed on the top to move downward, thereby the piston plate 233 moves downward to draw the gas in the piston cylinder 234, and the piston moves, so that negative pressure is generated in the gas plate 241, so as to achieve negative pressure suction of the inner wall of the top of the breathable workbench 13, and realize the secondary positioning of negative pressure adsorption of the processing plate placed on the surface of the breathable workbench 13, ensuring that the processing plate will not shake, deviate or be unstable during the multi-axis precision engraving process. When negative pressure is generated in the piston cylinder 234, the gas sucked into the piston cylinder 234 will be filtered. The mesh plate 236 filters to prevent the gas containing plate residue from entering the piston cylinder 234. At the same time, the negative pressure of the gas will drive the second folded plastic plate 239 to elastically move downward on multiple springs 238, directly contacting and fitting the bottom inner wall of the filter mesh plate 236, and blocking the piston cylinder 234 and the filter residue groove 237 opened on the filter mesh plate 236. Driven by the upward thrust of the tooth plate, the piston plate 233 will drive the gas to move upward with a certain force, thereby causing the plate residue filtered in the filter mesh plate 236 to enter the residue collecting cylinder plate 240 from the filter residue groove 237 for unified collection.

[0041] A multi-axis precision engraving machine comprises a multi-axis precision engraving machine body 1, a machine door 11 is hinged on the multi-axis precision engraving machine body 1, a numerical control box 12 is fixedly connected to the outer wall of one end of the multi-axis precision engraving machine body 1, a breathable workbench 13 is fitted and connected to the bottom end of the machine door 11, a sealing plug plate 14 is penetrated and clamped on one end of the breathable workbench 13, the top ends of two air plates 241 are specifically fitted and connected to the top inner wall of the breathable workbench 13, and two rectangular grooves are penetrated and opened on the top of the breathable workbench 13 for fitting and sliding connection with two L-shaped support plates 25 respectively, the outer wall of the L-shaped support plate 25 is fixedly connected to the inner wall of the breathable workbench 13, and the bottom inner wall of the multi-axis precision engraving machine body 1 is fixedly connected to the bottom outer wall of the electric cylinder 21.

[0042] The working principle and use process of the present invention are as follows: the numerical control box 12 installed on the multi-axis engraving machine body 1 controls the electric cylinder 21 in the breathable workbench 13 to operate and move upward, and the upward electric cylinder 21 will synchronously drive the shift plate 22 and the slide plate 23 on the shift plate 22 to move upward. In the process of continuous upward movement, the slide plate 23 will push up and drive the two connected hinge plates 28 to tilt at the same time, so that the two passively tilted hinge plates 28 will cause the slide plate 23 to slide horizontally on the shift plate 22, and at the same time drive the L-shaped support plate 25 connected to the groove plate 24 to guide translation. The moving path of the L-shaped support plate 25 is the same as the passive translation direction of the slide plate 23, thereby driving the L-shaped support plate 25 to move horizontally. The rubber clamping plate 26 on the L-shaped support plate 25 clamps and positions the outer wall of the processing plate. The rubber clamping plate 26 itself is made of natural rubber material, so when the processing plate is clamped and positioned, the outer wall will not be damaged. The contact between the natural rubber and the processing plate can also increase the friction between the two, so as to produce a better positioning effect. When the L-shaped support plate 25 moves, it will also drive the first folding plastic plate 27 fixedly connected to one end of the rectangular groove to unfold, so that after the rubber clamping plate 26 clamps the processing plate, the rectangular groove is blocked to prevent some board chips generated on the processing plate from entering the clamping and positioning part 2 when the processing plate is finely carved;

[0043] At the same time, when the shift plate 22 moves up, it will also synchronously drive a tooth plate in the meshing assembly 29 to move up synchronously, thereby driving the spur gear meshing with it to rotate, thereby driving the other tooth plate to move down in the opposite direction, and the downwardly moving tooth plate will be guided downward on the screw rod 231 and under the limit of the limit plate 232 through the installed L-shaped connecting plate 230, and the screw rod 231 connected to the L-shaped connecting plate 230 will be driven by the downward movement of the L-shaped connecting plate 230 to perform positioning rotation in the limit plate 232 The toothed plate that moves downward passively will drive the piston plate 233 fixed on the top to move downward, so that the piston plate 233 moves downward to draw the gas in the piston cylinder 234, and the piston moves, so that negative pressure is generated in the gas plate 241, so as to achieve negative pressure suction on the inner wall of the top of the breathable workbench 13, and realize the secondary positioning of negative pressure adsorption of the processing plate placed on the surface of the breathable workbench 13, so as to ensure that the processing plate will not shake, deviate or be unstable during the multi-axis precision engraving process;

[0044] At the same time, when negative pressure is generated in the piston cylinder 234, the gas sucked into the piston cylinder 234 will be filtered through the filter screen plate 236 to prevent the gas containing plate residue from entering the piston cylinder 234. At the same time, the negative pressure of the gas will drive the second folded plastic plate 239 to elastically move downward on multiple springs 238, directly contact and fit the bottom inner wall of the filter screen plate 236, and block the piston cylinder 234 and the filter residue groove 237 opened on the filter screen plate 236. Conversely, when the tooth plate that has moved downward is passively moved upward, the second folded plastic plate 239 can be immediately moved upward and reset with the help of the elastic force of multiple springs 238, and will no longer The filter residue groove 237 is blocked, and the piston plate 233 drives the gas to move upward with a certain force under the drive of the upward thrust of the tooth plate, so that the plate residue filtered in the filter mesh plate 236 enters the residue collecting cylinder plate 240 from the filter residue groove 237 for unified collection. When the plate residue in the residue collecting cylinder plate 240 is taken out later, it is necessary to take out the sealing plug plate 14 clamped on the breathable workbench 13, and then separate and take out the two residue collecting cylinder plates 240 that are magnetically attracted to each other, so that the slag body inside can be cleaned, thereby realizing the secondary clamping and positioning during multi-axis precision engraving of the processing plate, and at the same time, some processing plate residue generated during processing and production can be collected and cleaned to a certain extent.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and positioning structure for multi-axis precision engraving machining, comprising a clamping and positioning portion (2), characterized in that: The clamping and positioning portion (2) includes a group of L-shaped support plates (25), and a rubber clamping plate (26) is fixedly connected to the outer wall of one end of the group of L-shaped support plates (25) close to the top. A rotational translation structure is jointly provided between the group of L-shaped support plates (25), and the group of rubber clamping plates (26) can be driven by the rotational translation structure to move in opposite directions, thereby achieving non-damaging clamping of the processing plate. The rotational translation structure is specifically provided with two stretching negative pressure structures, and the processing plate is reinforced at a secondary level by the two stretching negative pressure structures. The two stretching negative pressure structures each include a piston plate (233), the outer wall of the piston plate (233) is slidably connected to a piston cylinder (234), the outer wall of the piston cylinder (234) is movably sleeved with a telescopic sleeve rod (235), and the top outer wall of the piston cylinder (234) is fixedly connected to an air plate (241), and negative pressure is formed by the movement of the piston, thereby positioning and reinforcing the processing plate.

2. The clamping and positioning structure for multi-axis precision engraving machining according to claim 1 is characterized in that: The rotary translation structure comprises an electric cylinder (21), a moving plate (22) is fixedly connected to the top of the electric cylinder (21), and sliding plates (23) are slidably connected to both side plates of the moving plate (22). The electric cylinder (21) is also slidably connected to a slot plate (24), and the side plates of the slot plate (24) are respectively slidably connected to a section of a plate of a group of L-shaped support plates (25).

3. The clamping and positioning structure for multi-axis precision engraving machining according to claim 2 is characterized in that: A first folding plastic plate (27) is fixedly connected to the outer wall at one end of a group of L-shaped support plates (25), and a hinge plate (28) is movably sleeved on the outer walls at both ends of the two slide plates (23), while the other sides of the two groups of hinge plates (28) are movably sleeved with the inner walls at one end of the slide plate (23) and the L-shaped support plate (25), respectively.

4. The clamping and positioning structure for multi-axis precision engraving machining according to claim 3 is characterized in that: The two stretching negative pressure structures also specifically include a meshing assembly (29), which is specifically composed of a spur gear and toothed plates meshingly connected to the two sides of the spur gear. A U-shaped frame is movably sleeved on the center position of the spur gear, and the bottom end of the U-shaped frame is fixedly connected to the outer wall of one end of the groove plate (24).

5. The clamping and positioning structure for multi-axis precision engraving machining according to claim 4 is characterized in that: A smooth outer wall at one end of one of the toothed plates is fixedly connected to an inner wall at one end of the shifting plate (22), and an L-shaped connecting plate (230) is fixedly connected to a smooth outer wall at one end of the other toothed plate, and a screw (231) is threadedly connected to the L-shaped connecting plate (230).

6. The clamping and positioning structure for multi-axis precision engraving machining according to claim 5 is characterized in that: The top of the screw rod (231) is movably sleeved with a limit plate (232), the outer wall of the bottom side of the limit plate (232) and the top side wall of the moving plate (22) are fixedly connected, and the inner wall of the limit plate (232) and the outer wall of the L-shaped connecting plate (230) are fitted and slidably connected.

7. The clamping and positioning structure for multi-axis precision engraving machining according to claim 6 is characterized in that: The bottom end of the telescopic sleeve (235) is fixedly connected to the top outer wall of the moving plate (22); a filter screen plate (236) is fixedly connected to the top inner wall of the piston cylinder (234); and a plurality of filter residue grooves (237) are jointly provided on the outer wall of the filter screen plate (236) and the outer wall of the piston cylinder (234) near the top.

8. The clamping and positioning structure for multi-axis precision engraving machining according to claim 7 is characterized in that: A plurality of springs (238) are fixedly connected in a surrounding manner in the inner wall of the filter screen plate (236) near the top, and a second folded plastic plate (239) is fixedly connected to each of the springs (238).

9. The clamping and positioning structure for multi-axis precision engraving machining according to claim 8, characterized in that: Two slag collecting cylinder plates (240) are tightly clamped on the outer wall of the piston cylinder (234) near the top, and the two slag collecting cylinder plates (240) are specifically composed of magnetic plates that are magnetically attracted to each other.

10. A multi-axis engraving machine, comprising a multi-axis engraving machine body (1), characterized in that: The multi-axis precision engraving machine body (1) is hingedly provided with a machine door (11), and a numerical control box (12) is fixedly connected to the outer wall of one end of the multi-axis precision engraving machine body (1), and a breathable workbench (13) is fitted and connected to the bottom end of the machine door (11), and a sealing plug plate (14) is connected through one end of the breathable workbench (13), and the top ends of the two air plates (241) are specifically fitted and connected to the inner wall of the top end of the breathable workbench (13), and the top end of the breathable workbench (13) is provided with two rectangular grooves that are respectively fitted and slidably connected to two L-shaped support plates (25), the outer wall of the L-shaped support plate (25) is fixedly connected to the inner wall of the breathable workbench (13), and the bottom inner wall of the multi-axis precision engraving machine body (1) is fixedly connected to the bottom outer wall of the electric cylinder (21).

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