High-precision cutting device for metal mold processing

Abstract

The application relates to the technical field of metal cutting, in particular to a high-precision cutting device for metal module machining, which comprises a machining table, a sliding groove is formed in the top of the machining table, two sliding blocks are slidably connected in the sliding groove, two electric cylinders are fixedly installed on the machining table, the transmission shafts of the electric cylinders are fixedly connected to the corresponding sliding blocks, support frames are fixedly connected to the top of the sliding blocks, limit housings are fixedly connected to the adjacent sides of the two support frames, a U-shaped rod is slidably inserted into the limit housing, and reciprocating saw blades are arranged between the two ends of the U-shaped rod; when one of the reciprocating saw blades completes cutting and moves to the lowermost position while the rotating disc rotates in one direction driven by the rotating assembly, the other reciprocating saw blade completes idle movement and moves to the uppermost position, the sizes of the inertial forces are equal and the directions of the inertial forces are opposite, the equipment vibration caused by the inertial forces is effectively reduced, and the cutting surface precision is ensured.

Description

Technical Field

[0001] This invention relates to the field of metal cutting technology, and in particular to a high-precision cutting device for processing metal molds. Background Technology

[0002] Patent document CN117697025A discloses a metal raw material cutting mechanism, relating to the field of metal cutting technology. The invention includes a base plate, a drive motor mounted on one side of the top of the base plate, a side frame fixedly connected to the top of the base plate, a wheel frame on one side of the side frame, a driven wheel mounted on one side of the wheel frame, a transmission belt between the drive motor and the driven wheel, a reciprocating assembly mounted on the driven wheel through the wheel frame, a mounting assembly at the top of the side frame, a saw body mounted between the reciprocating assembly and the mounting assembly, a positioning assembly directly below the saw body at the top of the base plate, and an angle adjustment assembly mounted between the positioning assembly and the base plate.

[0003] In existing technologies, metal parts are typically cut by the reciprocating movement of a saw blade. The teeth of the reciprocating saw are all tilted to one side, so that only one effective cut can be made during the reciprocating motion of the saw. The return stroke is an empty stroke and does not cut the metal part. During the cutting process, the single-stroke cutting method during the reciprocating motion reduces the cutting efficiency of the metal parts. Furthermore, because the reciprocating saw performs cutting and empty return strokes on both the forward and backward strokes, it generates a huge unbalanced inertial force during the reciprocating motion, which causes the overall vibration of the equipment and affects the accuracy of the cutting surface. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a high-precision cutting device for metal mold processing.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a high-precision cutting device for metal mold processing, including a processing table, a sliding groove is provided on the top of the processing table, two sliders are slidably connected inside the sliding groove, two electric cylinders are fixedly installed on the processing table, and the drive shafts of the electric cylinders are fixedly connected to the corresponding sliders;

[0006] The top of each slider is fixedly connected to a support frame. Each of the two adjacent support frames is fixedly connected to a limit housing. A U-shaped rod is slidably inserted inside the limit housing. A reciprocating saw blade is set between the two ends of the U-shaped rod. Inclined grooves are opened on both sides of the limit housing. Limit strips are fixedly connected to both sides of the U-shaped rod. The limit strips are slidably connected in the corresponding inclined grooves.

[0007] The bottom of the processing table has two sliding guide bars, each with a slotted groove. Each U-shaped rod is fixedly connected to a fixing rod, and one end of the fixing rod is fixedly connected to a first circular pin. One end of each of the two first circular pins is located inside the two slots.

[0008] A rotating disk is provided between two guide bars. A second circular pin is provided on both sides of the rotating disk. The two second circular pins are arranged in a circle along the axis of the rotating disk. One end of the two second circular pins is located in the corresponding strip groove. A rotating component is provided on the rotating disk, and the rotating disk is driven to rotate by the action of the rotating component.

[0009] Multiple sets of clamping fixtures are fixedly installed on the top of the processing table. The clamping fixtures are located on both sides of the sliding groove and are arranged opposite each other.

[0010] Preferably, the rotating assembly includes a mounting base, which is fixedly connected to the bottom of the processing table. The mounting base has a rotating groove, and a rotating disk is rotatably connected inside the rotating groove. An external gear ring is fixedly connected to the rotating disk. A servo motor is fixedly mounted on the processing table, and a gear is fixedly connected to the output shaft of the servo motor. The gear meshes with the external gear ring.

[0011] Preferably, the rotating disk has a clearance groove, and two connecting blocks are slidably connected inside the clearance groove. Two second circular pins are fixedly connected to the two connecting blocks respectively. A bidirectional threaded rod is rotatably connected inside the clearance groove, and both connecting blocks are threadedly connected to the bidirectional threaded rod.

[0012] Preferably, both ends of the bidirectional threaded rod pass through the rotating disk and extend to the outside of the rotating disk before being fixedly connected to a dial plate, and each dial plate is provided with a hexagonal groove.

[0013] Preferably, mounting brackets are fixedly connected to both sides of the mounting base, and laser receivers are fixedly mounted on the mounting brackets. Laser emitters are fixedly mounted on both sides of the rotating disk, with one laser emitter located below one side of the rotating disk and the other laser emitter located above the other side of the rotating disk and symmetrically arranged.

[0014] Preferably, a liquid storage cylinder and a connecting frame are fixedly connected to the support frame, and a collection shell is fixedly connected to the connecting frame. An inlet pipe is fixedly connected to the bottom of the collection shell, and a first flexible hose is fixedly connected to the bottom end of the inlet pipe. One end of the first flexible hose extends into the interior of the liquid storage cylinder. A one-way inlet valve is fixedly installed on the inlet pipe. A drain pipe is fixedly connected to the lower side of the collection shell. A cooling pipe is provided at the top of the U-shaped rod. A second flexible hose is fixedly connected between the drain pipe and the cooling pipe. A one-way drain valve is fixedly installed on the drain pipe. An adsorption and drain assembly is provided between the collection shell and the corresponding U-shaped rod. When the U-shaped rod moves upward, liquid is collected into the collection shell through the adsorption and drain assembly. When the U-shaped rod moves downward, the collected liquid is discharged through the adsorption and drain assembly.

[0015] Preferably, the adsorption and drainage assembly includes a piston, which is slidably connected inside the collection housing. A sliding rod is fixedly connected to the top of the piston, and a U-shaped strip is fixedly connected to the top of the sliding rod. Transverse grooves are provided on both sides of the U-shaped strip, and a third circular pin is fixedly inserted into the U-shaped rod. The two ends of the third circular pin are respectively located in the corresponding transverse grooves.

[0016] Preferably, a guide frame is fixedly connected to the connecting frame, and a sliding rod is slidably inserted into the guide frame.

[0017] Preferably, the cooling pipe is rotatably connected to the U-shaped rod, a torsion spring is fixedly installed at the rotatable connection between the cooling pipe and the U-shaped rod, a support frame is fixedly connected to the limiting housing, and the cooling pipe is located on top of the support frame.

[0018] Preferably, both ends of the U-shaped rod are provided with positioning grooves, and both ends of the reciprocating saw blade are respectively located in the corresponding positioning grooves. Both ends of the U-shaped rod are provided with bolts, one end of which passes through the corresponding reciprocating saw blade and is threaded onto the U-shaped rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. By using the circumferential setting of two second circular pins and the guiding effect of two guide bars, when the two reciprocating saw blades are cutting, one reciprocating saw blade moves downward and cuts, while the other reciprocating saw blade moves upward to return during its idle stroke. This ensures that the metal mold is always effectively cut. Furthermore, when the rotating component drives the turntable to rotate unidirectionally, when one reciprocating saw blade completes the cut and moves to the bottom, the other reciprocating saw blade completes its idle stroke and moves to the top. This ensures that the magnitude of the inertial force is equal and the direction is opposite, thus balancing the inertial force and effectively reducing the equipment vibration caused by the inertial force. This improves the stability of the reciprocating saw blade during cutting and ensures the accuracy of the cut surface.

[0021] 2. When the U-shaped rod drives the reciprocating saw blade downwards, the reciprocating saw blade cuts the metal mold. The adsorption and drainage component collects the coolant inside the housing and transports it into the drainage pipe. The coolant then enters the cooling pipe along the second hose and is finally sprayed out along one end of the cooling pipe towards the cutting position between the reciprocating saw blade and the metal mold, thereby cooling and lubricating the cutting position, reducing the cutting wear of the reciprocating saw blade and extending its service life. By combining the use of coolant with the reciprocating movement of the reciprocating saw blade through the adsorption and drainage component, the reciprocating saw blade does not need to be cooled when it returns empty, reducing coolant waste and improving coolant utilization.

[0022] 3. During the movement, the cooling pipe comes into contact with and is squeezed against the support frame, and flips and makes room along the rotating connection. At the same time, it drives the torsion spring to twist, so that when the reciprocating saw blade cuts the metal mold, the spray angle of the cooling pipe changes with the movement of the reciprocating saw blade, so that the surface of the saw teeth involved in the cutting is effectively cooled by the spray, increasing the coverage of the coolant and improving the cooling and lubrication effect. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0025] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;

[0026] Figure 4 For the present invention Figure 1 Enlarged schematic diagram of the structure at point C;

[0027] Figure 5 For the present invention Figure 1 Enlarged schematic diagram of the structure at point D;

[0028] Figure 6 This is a partial structural schematic diagram of the present invention (the processing table has been cut open, and the clamping fixture at the cut position is hidden).

[0029] Figure 7 For the present invention Figure 6 Enlarged schematic diagram of the structure at point E in the diagram;

[0030] Figure 8 This is a schematic diagram of the mating structure of the rotating disk and the mounting base of the present invention;

[0031] Figure 9 This is a cross-sectional schematic diagram of the mating structure of the rotating disk and the mounting base of the present invention.

[0032] In the diagram: 1. Machining table; 2. Sliding groove; 3. Slider; 4. Electric cylinder; 5. Support frame; 6. Limiting housing; 7. U-shaped rod; 8. Reciprocating saw blade; 9. Inclined groove; 10. Limiting strip; 11. Guide strip; 12. Strip groove; 13. Fixing rod; 14. First circular pin; 15. Rotary disk; 16. Second circular pin; 17. Clamping fixture; 18. Mounting base; 19. Rotating groove; 20. External gear ring; 21. Servo motor; 22. Gear; 23. Clearance groove; 24. Connecting block; 25. Bidirectional threaded rod; 26. Actuator 27. Plate; 28. Hexagonal groove; 29. ​​Mounting bracket; 30. Laser receiver; 31. Laser emitter; 32. Liquid reservoir; 33. Connecting bracket; 34. Collection housing; 35. Liquid inlet pipe; 36. First hose; 37. One-way liquid inlet valve; 38. Drain pipe; 39. Cooling pipe; 40. Second hose; 41. One-way drain valve; 42. Piston; 43. Sliding rod; 44. U-shaped bar; 45. Transverse groove; 46. Third circular pin; 47. Guide frame; 48. Torsion spring; 49. Support frame; 50. Positioning groove; 61. Bolt. Detailed Implementation

[0033] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0034] like Figures 1 to 9 The high-precision cutting device for processing metal mold parts shown includes a processing table 1, a sliding groove 2 is provided on the top of the processing table 1, two sliders 3 are slidably connected inside the sliding groove 2, and two electric cylinders 4 are fixedly installed on the processing table 1, with the drive shaft of the electric cylinder 4 fixedly connected to the corresponding slider 3.

[0035] The top of each slider 3 is fixedly connected to a support frame 5. Each of the two adjacent support frames 5 is fixedly connected to a limiting housing 6. A U-shaped rod 7 is slidably inserted inside the limiting housing 6. A reciprocating saw blade 8 is provided between the two ends of the U-shaped rod 7. Inclined grooves 9 are provided on both sides of the limiting housing 6. Limiting strips 10 are fixedly connected to both sides of the U-shaped rod 7. The limiting strips 10 are slidably connected in the corresponding inclined grooves 9.

[0036] The bottom of the processing table 1 is slidably connected to two guide bars 11, each of which has a strip groove 12. Each of the U-shaped rods 7 is fixedly connected to a fixing rod 13, and one end of the fixing rod 13 is fixedly connected to a first circular pin 14. One end of each of the two first circular pins 14 is located inside the two strip grooves 12.

[0037] A rotating disk 15 is provided between two guide bars 11. A second circular pin 16 is provided on both sides of the rotating disk 15. The two second circular pins 16 are arranged in a circle along the axis of the rotating disk 15. One end of the two second circular pins 16 is located in the corresponding strip groove 12. A rotating component is provided on the rotating disk 15, and the rotating disk 15 is driven to rotate by the action of the rotating component.

[0038] Multiple sets of clamping fixtures 17 are fixedly installed on the top of the processing table 1. The clamping fixtures 17 are located on both sides of the sliding groove 2 and are arranged opposite to each other.

[0039] The metal mold is placed on the top of the processing table 1, and the metal mold is clamped and positioned by the movement of the clamping fixture 17. The rotating assembly drives the rotating disk 15 to rotate in one direction. The second circular pins 16 on both sides of the rotating disk 15 rotate synchronously with the rotating disk 15. The second circular pins 16 limit the strip groove 12 and the circumferential distribution of the two second circular pins 16 make the movement directions of the two guide bars 11 always opposite. The first circular pin 14 limits the corresponding strip groove 12, which drives the corresponding fixed rod 13 and U-shaped rod 7 to move synchronously. The limiting strips 10 on both sides of the U-shaped rod 7 slide along the inside of the corresponding inclined groove 9, so that the U-shaped rod 7 moves vertically back and forth while being inclined and guided. This allows the reciprocating saw blade 8 to contact and press against the surface of the metal mold when it moves downward, providing the pressure required for cutting. When the reciprocating saw blade 8 moves upward, it moves in the opposite direction by being inclined and guided.

[0040] Two reciprocating saw blades 8 reciprocate to cut the metal mold on both sides. The slider 3 is driven by the transmission shaft of the electric cylinder 4 to move inside the sliding groove 2, so that the two reciprocating saw blades 8 move closer to each other during the reciprocating cutting process. Through the circumferential setting of the two second circular pins 16 and the guiding effect of the two guide bars 11, when the two reciprocating saw blades 8 are cutting, one reciprocating saw blade 8 moves downward and cuts, while the other reciprocating saw blade 8 moves upward to return to its empty stroke, ensuring that the metal mold is always effectively cut. When the rotating disk 15 is driven to rotate unidirectionally by the rotating component, when one reciprocating saw blade 8 completes the cutting and moves to the bottom, the other reciprocating saw blade 8 completes the empty stroke and moves to the top, ensuring that the magnitude of the inertial force is equal and the direction is opposite, balancing the inertial force, thereby effectively reducing the equipment vibration caused by the inertial force, improving the stability of the reciprocating saw blade 8 during cutting, and ensuring the accuracy of the cutting surface.

[0041] When the two reciprocating saw blades 8 move relative to each other and approach the center point of the metal mold by the action of the electric cylinder 4, the inclined groove 9 guides the limiting strip 10 to move one of the reciprocating saw blades 8 downward and laterally approach the metal mold for cutting, while the other reciprocating saw blade 8 moves upward and laterally away from the metal mold to make way. This ensures that the two reciprocating saw blades 8 will not come into contact with each other during the complete cutting of the metal mold, and prevents equipment damage caused by the reciprocating saw blades 8 cutting each other.

[0042] As a further embodiment of the present invention, the rotating assembly includes a mounting base 18, which is fixedly connected to the bottom of the processing table 1, such as... Figure 7 and Figure 8 As shown, a rotating groove 19 is provided on the mounting base 18, and a rotating disk 15 is rotatably connected inside the rotating groove 19. An external gear ring 20 is fixedly connected to the rotating disk 15. A servo motor 21 is fixedly installed on the processing table 1. A gear 22 is fixedly connected to the output shaft of the servo motor 21. The gear 22 meshes with the external gear ring 20.

[0043] The output shaft of the servo motor 21 rotates, driving the gear 22 to rotate. Through the meshing action between the gear 22 and the external gear ring 20, the external gear ring 20 is meshed and rotated. Through the fixed connection between the external gear ring 20 and the rotating disk 15, the rotating disk 15 rotates unidirectionally along the rotating connection inside the rotating groove 19.

[0044] As a further embodiment of the present invention, such as Figure 8 As shown, a clearance groove 23 is provided on the rotating disk 15. Two connecting blocks 24 are slidably connected inside the clearance groove 23. Two second circular pins 16 are fixedly connected to the two connecting blocks 24 respectively. A bidirectional threaded rod 25 is rotatably connected inside the clearance groove 23. Both connecting blocks 24 are threadedly connected to the bidirectional threaded rod 25.

[0045] By controlling the rotation of the bidirectional threaded rod 25, during the rotation process, the two connecting blocks 24 move inside the relief groove 23 through the threaded connection between the bidirectional threaded rod 25 and the connecting block 24, and drive the second circular pin 16 to move, thereby adjusting the distance between the second circular pin 16 and the axis of the rotating disk 15, and correspondingly adjusting the reciprocating movement distance of the reciprocating saw blade 8.

[0046] As a further embodiment of the present invention, both ends of the bidirectional threaded rod 25 pass through the rotating disk 15 and extend to the outside of the rotating disk 15, and are fixedly connected to the actuating disk 26. The actuating disk 26 is provided with a hexagonal groove 27.

[0047] Insert one end of the hex wrench into the corresponding hexagonal slot 27 and rotate it, so that the dial 26 drives the bidirectional threaded rod 25 to rotate synchronously along the rotating connection, thereby facilitating the rotational adjustment of the bidirectional threaded rod 25.

[0048] As a further embodiment of the present invention, such as Figure 8 As shown, mounting brackets 28 are fixedly connected to both sides of the mounting base 18, and laser receivers 29 are fixedly mounted on the mounting brackets 28. Laser emitters 30 are fixedly mounted on both sides of the rotating disk 15. One laser emitter 30 is located below one side of the rotating disk 15, and the other laser emitter 30 is located above the other side of the rotating disk 15 and is symmetrically arranged.

[0049] Two laser receivers 29 are connected to controllers via corresponding electric cylinders 4. As the rotating disk 15 rotates, it drives the laser emitters 30 on both sides to rotate synchronously. When the laser emitter 30 moves past the surface of the corresponding laser receiver 29 during rotation, the laser receiver 29 receives the corresponding laser signal. At this time, the reciprocating saw blade 8 has completed a single cut and is ready to return empty. During the return of the reciprocating saw blade 8, the controller controls the transmission shaft of the corresponding electric cylinder 4 to push the slider 3 to move, so that the lateral movement distance of the slider 3 is the same as the horizontal distance of the limit bar 10 in the inclined groove 9. This ensures that when the reciprocating saw blade 8 makes the next reciprocating movement, it can directly contact and cut the uncut position, improve the cutting efficiency of the reciprocating saw blade 8, and prevent repeated cutting of the already cut position.

[0050] As a further embodiment of the present invention, a liquid storage cylinder 31 and a connecting frame 32 are fixedly connected to the support frame 5. A collection shell 33 is fixedly connected to the connecting frame 32. A liquid inlet pipe 34 is fixedly connected to the bottom of the collection shell 33. A first flexible hose 35 is fixedly connected to the bottom end of the liquid inlet pipe 34. One end of the first flexible hose 35 extends into the interior of the liquid storage cylinder 31. A one-way liquid inlet valve 36 is fixedly installed on the liquid inlet pipe 34. A drain pipe 37 is fixedly connected to the lower side of the collection shell 33. A cooling pipe 38 is provided at the top of the U-shaped rod 7. A second flexible hose 39 is fixedly connected between the drain pipe 37 and the cooling pipe 38. A one-way drain valve 40 is fixedly installed on the drain pipe 37. An adsorption drain assembly is provided between the collection shell 33 and the corresponding U-shaped rod 7. When the U-shaped rod 7 moves upward, liquid is collected into the collection shell 33 through the adsorption drain assembly. When the U-shaped rod 7 moves downward, the collected liquid is discharged through the adsorption drain assembly.

[0051] When the U-shaped rod 7 drives the reciprocating saw blade 8 upward, the reciprocating saw blade 8 is in an idle state. The adsorption and drainage component collects liquid into the collection housing 33. The coolant inside the storage cylinder 31 is transported along the first hose 35 into the inlet pipe 34, and enters the collection housing 33 through the connection between the inlet pipe 34 and the collection housing 33. When the U-shaped rod 7 drives the reciprocating saw blade 8 downward, the reciprocating saw blade 8 cuts the metal mold. The adsorption and drainage component transports the coolant inside the collection housing 33 into the drainage pipe 37, and enters the cooling pipe 38 along the second hose 39. Finally, it sprays out along one end of the cooling pipe 38 towards the cutting position between the reciprocating saw blade 8 and the metal mold, thereby cooling and lubricating the cutting position, reducing the cutting wear of the reciprocating saw blade 8 and extending its service life. The adsorption and drainage component dynamically combines the use of coolant with the reciprocating movement of the reciprocating saw blade 8. When the reciprocating saw blade 8 returns to its idle state, the discharge of coolant stops, reducing coolant waste and improving coolant utilization.

[0052] As a further embodiment of the present invention, the adsorption and drainage assembly includes a piston 41, which is slidably connected inside the collection housing 33. A sliding rod 42 is fixedly connected to the top of the piston 41, and a U-shaped strip 43 is fixedly connected to the top of the sliding rod 42. A transverse groove 44 is provided on both sides of the U-shaped strip 43. A third circular pin 45 is fixedly inserted on the U-shaped rod 43, and the two ends of the third circular pin 45 are respectively located in the corresponding transverse groove 44.

[0053] When the U-shaped rod 7 drives the reciprocating saw blade 8 to move upward, the U-shaped bar 43 moves upward synchronously due to the limiting effect of the transverse groove 44 on the third circular pin 45. The third circular pin 45 moves relative to each other inside the transverse groove 44, and with the lateral displacement generated when the U-shaped rod 7 moves upward, the U-shaped bar 43 drives the sliding rod 42 and piston 41 to move upward synchronously. The piston 41 moves downward along the inside of the collecting housing 33, and through the negative pressure, it draws the coolant in the storage cylinder 31 into the collecting housing 33. When the U-shaped rod 7 drives the reciprocating saw blade 8 to move downward, the U-shaped bar 43 drives the sliding rod 42 and piston 41 to move downward synchronously, and through the movement of the piston 41, it squeezes and delivers the coolant inside the collecting housing 33 into the cooling pipe 38, thereby spraying and cooling the cutting area.

[0054] As a further embodiment of the present invention, a guide frame 46 is fixedly connected to the connecting frame 32, and a sliding rod 42 is slidably inserted into the guide frame 46;

[0055] The guide frame 46 slides and limits the sliding rod 42 to prevent the lateral displacement generated during the lifting and lowering of the U-shaped rod 7 from affecting the movement trajectory of the sliding rod 42, thereby improving the stability of the movement of the sliding rod 42 and the piston 41.

[0056] As a further embodiment of the present invention, the cooling pipe 38 is rotatably connected to the U-shaped rod 7, and a torsion spring 47 is fixedly installed at the rotatable connection between the cooling pipe 38 and the U-shaped rod 7 (e.g., Figure 5 As shown), a support frame 48 is fixedly connected to the limiting housing 6, and the cooling pipe 38 is located on top of the support frame 48.

[0057] The U-shaped bar 7 drives the reciprocating saw blade 8 downward to cut the metal mold. The cooling pipe 38 sprays coolant onto the cutting position. As the reciprocating saw blade 8 moves downward, the contact position between the reciprocating saw blade 8 and the metal mold changes. At the same time, as the U-shaped bar 7 moves downward, it drives the cooling pipe 38 to move downward synchronously. During the movement, the cooling pipe 38 contacts and is squeezed against the support frame 48, and flips along the rotating connection to make room. At the same time, it drives the torsion spring 47 to twist, so that when the reciprocating saw blade 8 cuts the metal mold, the spray angle of the cooling pipe 38 changes with the movement of the reciprocating saw blade 8, so that the surface of the saw teeth involved in the cutting is effectively cooled by the spray, increasing the coverage of the coolant and improving the cooling and lubrication effect.

[0058] As a further embodiment of the present invention, such as Figure 5 As shown, both ends of the U-shaped rod 7 are provided with positioning grooves 49, and both ends of the reciprocating saw blade 8 are respectively located in the corresponding positioning grooves 49. Both ends of the U-shaped rod 7 are provided with bolts 50, and one end of each bolt 50 passes through the corresponding reciprocating saw blade 8 and is threaded onto the U-shaped rod 7.

[0059] By connecting the bolt 50 to the U-shaped rod 7 with a thread, the two ends of the reciprocating saw blade 8 are respectively positioned in the corresponding positioning grooves 49. Thus, when replacing the reciprocating saw blade 8, the positioning effect of the reciprocating saw blade 8 is released by rotating the bolt 50, and the reciprocating saw blade 8 can be taken out from the positioning grooves 49 for replacement.

[0060] Working principle of this invention:

[0061] The metal mold is placed on the top of the processing table 1, and the metal mold is clamped and positioned by the movement of the clamping fixture 17. The rotating assembly drives the rotating disk 15 to rotate in one direction. The second circular pins 16 on both sides of the rotating disk 15 rotate synchronously with the rotating disk 15. The second circular pins 16 limit the strip groove 12 and the circumferential distribution of the two second circular pins 16 make the movement directions of the two guide bars 11 always opposite. The first circular pin 14 limits the corresponding strip groove 12, which drives the corresponding fixed rod 13 and U-shaped rod 7 to move synchronously. The limiting strips 10 on both sides of the U-shaped rod 7 slide along the inside of the corresponding inclined groove 9, so that the U-shaped rod 7 moves vertically back and forth while being inclined and guided. This allows the reciprocating saw blade 8 to contact and press against the surface of the metal mold when it moves downward, providing the pressure required for cutting. When the reciprocating saw blade 8 moves upward, it moves in the opposite direction by being inclined and guided.

[0062] Two reciprocating saw blades 8 reciprocate to cut the metal mold on both sides. The slider 3 is driven by the transmission shaft of the electric cylinder 4 to move inside the sliding groove 2, so that the two reciprocating saw blades 8 move closer to each other during the reciprocating cutting process. Through the circumferential setting of the two second circular pins 16 and the guiding effect of the two guide bars 11, when the two reciprocating saw blades 8 are cutting, one reciprocating saw blade 8 moves downward and cuts, while the other reciprocating saw blade 8 moves upward to return to its empty stroke, ensuring that the metal mold is always effectively cut. When the rotating disk 15 is driven to rotate unidirectionally by the rotating component, when one reciprocating saw blade 8 completes the cutting and moves to the bottom, the other reciprocating saw blade 8 completes the empty stroke and moves to the top, ensuring that the magnitude of the inertial force is equal and the direction is opposite, balancing the inertial force, thereby effectively reducing the equipment vibration caused by the inertial force, improving the stability of the reciprocating saw blade 8 during cutting, and ensuring the accuracy of the cutting surface.

[0063] When the two reciprocating saw blades 8 move toward each other and approach the center point of the metal mold by the action of the electric cylinder 4, the inclined groove 9 guides the limiting strip 10 to move one of the reciprocating saw blades 8 inward and cut, while the other reciprocating saw blade 8 moves outward to make way, ensuring that the two reciprocating saw blades 8 do not come into contact with each other during the complete cutting of the metal mold, and preventing equipment damage caused by the reciprocating saw blades 8 cutting each other.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A high-precision cutting device for processing metal mold parts, comprising a processing table, characterized in that, The top of the processing table is provided with a sliding groove, and two sliders are slidably connected inside the sliding groove. Two electric cylinders are fixedly installed on the processing table, and the drive shafts of the electric cylinders are fixedly connected to the corresponding sliders. The top of each slider is fixedly connected to a support frame. Each of the two adjacent support frames is fixedly connected to a limit housing. A U-shaped rod is slidably inserted inside the limit housing. A reciprocating saw blade is set between the two ends of the U-shaped rod. Inclined grooves are opened on both sides of the limit housing. Limit strips are fixedly connected to both sides of the U-shaped rod. The limit strips are slidably connected in the corresponding inclined grooves. The bottom of the processing table has two sliding guide bars, each with a slotted groove. Each U-shaped rod is fixedly connected to a fixing rod, and one end of the fixing rod is fixedly connected to a first circular pin. One end of each of the two first circular pins is located inside the two slots. A rotating disk is set between two guide bars. A second circular pin is set on both sides of the rotating disk. The two second circular pins are arranged in a circle along the axis of the rotating disk, so that when the two reciprocating saw blades are cutting, one reciprocating saw blade moves downward and cuts, while the other reciprocating saw blade moves upward and returns after an idle stroke. One end of the two second circular pins is located in the corresponding strip groove. A rotating component is set on the rotating disk, and the rotating component drives the rotating disk to rotate. Multiple sets of clamping fixtures are fixedly installed on the top of the processing table. The clamping fixtures are located on both sides of the sliding groove and are arranged opposite each other.

2. The high-precision cutting device for metal mold processing according to claim 1, characterized in that, The rotating assembly includes a mounting base, which is fixedly connected to the bottom of the processing table. The mounting base has a rotating groove, and a rotating disk is rotatably connected inside the rotating groove. An external gear ring is fixedly connected to the rotating disk. A servo motor is fixedly mounted on the processing table, and a gear is fixedly connected to the output shaft of the servo motor. The gear meshes with the external gear ring.

3. The high-precision cutting device for metal mold processing according to claim 2, characterized in that, The rotating disk has a clearance groove, and two connecting blocks are slidably connected inside the clearance groove. Two second circular pins are fixedly connected to the two connecting blocks respectively. A bidirectional threaded rod is rotatably connected inside the clearance groove, and both connecting blocks are threadedly connected to the bidirectional threaded rod.

4. The high-precision cutting device for metal mold processing according to claim 3, characterized in that, Both ends of the bidirectional threaded rod pass through the rotating disk and extend to the outside of the rotating disk before being fixedly connected to a dial plate, and each dial plate has a hexagonal groove.

5. A high-precision cutting device for metal mold processing according to claim 2, characterized in that, Mounting brackets are fixedly connected to both sides of the mounting base, and laser receivers are fixedly mounted on the mounting brackets. Laser emitters are fixedly mounted on both sides of the rotating disk, with one laser emitter located below one side of the rotating disk and the other laser emitter located above the other side of the rotating disk in a symmetrical arrangement.

6. The high-precision cutting device for metal mold processing according to claim 1, characterized in that, A liquid storage cylinder and a connecting frame are fixedly connected to the support frame. A collection shell is fixedly connected to the connecting frame. An inlet pipe is fixedly connected to the bottom of the collection shell. A first flexible hose is fixedly connected to the bottom end of the inlet pipe. One end of the first flexible hose extends into the interior of the liquid storage cylinder. A one-way inlet valve is fixedly installed on the inlet pipe. A drain pipe is fixedly connected to the lower side of the collection shell. A cooling pipe is provided at the top of the U-shaped rod. A second flexible hose is fixedly connected between the drain pipe and the cooling pipe. A one-way drain valve is fixedly installed on the drain pipe. An adsorption and drainage assembly is provided between the collection shell and the corresponding U-shaped rod. When the U-shaped rod moves upward, liquid is collected into the collection shell through the adsorption and drainage assembly. When the U-shaped rod moves downward, the collected liquid is discharged through the adsorption and drainage assembly.

7. A high-precision cutting device for metal mold processing according to claim 6, characterized in that, The adsorption and drainage assembly includes a piston that is slidably connected inside the collection housing. A sliding rod is fixedly connected to the top of the piston, and a U-shaped strip is fixedly connected to the top of the sliding rod. Transverse grooves are provided on both sides of the U-shaped strip, and a third circular pin is fixedly inserted into the U-shaped rod. The two ends of the third circular pin are respectively located in the corresponding transverse grooves.

8. A high-precision cutting device for metal mold processing according to claim 7, characterized in that, A guide frame is fixedly connected to the connecting frame, and a sliding rod is slidably inserted into the guide frame.

9. A high-precision cutting device for metal mold processing according to claim 6, characterized in that, The cooling pipe is rotatably connected to the U-shaped rod. A torsion spring is fixedly installed at the rotatable connection between the cooling pipe and the U-shaped rod. A support frame is fixedly connected to the limiting housing, and the cooling pipe is located on top of the support frame.

10. A high-precision cutting device for metal mold processing according to claim 1, characterized in that, Both ends of the U-shaped bar are provided with positioning grooves, and the two ends of the reciprocating saw blade are respectively located in the corresponding positioning grooves. Both ends of the U-shaped bar are provided with bolts, one end of which passes through the corresponding reciprocating saw blade and is threaded onto the U-shaped bar.

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