Automatic trepanning device for metal part design

Abstract

The invention relates to the technical field of metal part machining, and discloses an automatic trepanning device for metal part design, which comprises a worktable, a base is fixedly connected to the center of the upper surface of the worktable, and angle adjusting devices penetrate through and are slidably connected to the side walls of the periphery of the base respectively; a displacement device is arranged between the angle adjusting device and the base, a clamping and tapping mechanism is fixedly installed at the output end of the angle adjusting device, the angle adjusting device is driven by the displacement device to be close to or away from the center of the base, and the clamping angle and position of the clamping and tapping mechanism on a workpiece are adjusted through the angle adjusting device. The clamping and tapping mechanism is used for conducting double-face clamping and side face abutting on the workpiece. Through cooperation of the displacement device, the angle adjusting device and the clamping and trepanning mechanism, the clamping and trepanning mechanism is suitable for effectively clamping various metal parts of different sizes and shapes, trepanning operation is synchronously achieved at the clamping position, and then automatic trepanning operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of metal parts processing, in particular to an automatic hole-making device for metal parts design. Background Art

[0002] Industrial products, such as equipment and vehicles, are often composed of numerous parts and components, including both standard and non-standard ones. Newly developed industrial products, in particular, often include some non-standard parts that require redesign. Metal parts account for a significant portion of this demand, and drilling is a common process for these parts.

[0003] However, in the actual drilling process, because metal parts are newly designed and even in the process of being verified during prototype processing, it is difficult to ensure that existing drilling equipment can be directly adapted to the drilling operation. For example, the size and shape of the newly designed metal parts differ from those of existing parts, making it difficult for existing fixtures to effectively clamp the newly designed metal parts. Furthermore, traditional drilling equipment has difficulty drilling holes on irregularly shaped surfaces. To address these issues, manual operation is currently often used during the design phase, which not only slows down the production of prototypes but also requires the re-manufacture of new fixtures to meet the clamping and fixation requirements. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an automatic hole-punching device for metal parts design, which solves the problem that the existing hole-punching device cannot meet the design requirements of metal parts.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automated hole-opening device for designing metal parts, comprising a workbench, a base fixedly connected to the center of the upper surface of the workbench, and angle adjustment devices passing through and slidably connected to the side walls of the base, a displacement device is provided between the angle adjustment device and the base, a clamping hole-opening mechanism is fixedly installed at the output end of the angle adjustment device, the angle adjustment device is driven by the displacement device to approach or move away from the center of the base, and the clamping angle and position of the workpiece by the clamping hole-opening mechanism are adjusted by the angle adjustment device, the clamping hole-opening mechanism is used to clamp the workpiece on both sides and to contact the sides to form a three-point clamping structure, and at the same time, a hole-opening operation is performed at the center position of the double-sided clamping, a protective cover matching it is provided above the base, and when opening a hole, the protective cover covers the base to form a chamber isolated from the outside world, and an exhaust device is provided on the top of the protective cover to extract the gas in the chamber.

[0006] Preferably, the angle adjustment device includes a translation bracket, which is placed vertically in the base, and its moving end is facing the center of the base, and the moving trajectory of the moving end is parallel to the side wall of the base. The moving end of the translation bracket is fixedly connected to the dual-axis turntable, and the translation bracket is fixedly connected to the side of the support frame away from the center of the base. The support frame passes through and is slidably connected to the side wall of the base. A guide rail is provided at the bottom of the support frame, and the bottom of the guide rail is fixedly connected to the upper surface of the workbench, and the sliding end of the guide rail is fixedly connected to the bottom of the support frame.

[0007] Preferably, the displacement device includes an electric push rod 1, the outer wall of which is fixedly connected to the outer wall of the base, the output end of which passes through the side wall of the base and is fixedly connected to the support frame, and the support frame is driven by the electric push rod 1 to move closer to or away from the center of the base and move along the track of the guide rail.

[0008] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the bottom end face of said toothed connecting strip is connected with said toothed connecting strip to form a hollow tube.

[0009] Preferably, a reinforcing rod 1 is further provided between the connecting plate 1 and the base, one end of the reinforcing rod 1 is fixedly connected to a side wall of the connecting plate, and the other end is passed through and slidably connected to the base. There are two reinforcing rods 1, and the two reinforcing rods 1 are symmetrically arranged with the cylinder 1 as the center, and the axes of the two reinforcing rods 1 are parallel to the axis of the cylinder 1.

[0010] Preferably, a cross beam is provided above the clamping arm, one end of the cross beam is provided with a hole opener, and the other end is fixedly connected to a support rod, and the support rod is embedded in and slidably connected to the slide grooves 2 on both sides of the base, the middle of the cross beam is fixedly connected to the cylinder 3, the output end of the cylinder 3 is fixedly connected to the cross block, the bottom wall of the cross block is fixedly connected to the outer wall of one of the clamping arms, and a slide groove 3 is opened in the middle of the cross block, and the slide groove 3 is sleeved and slidably connected to a cross arm of the U-shaped frame, and a reinforcing rod 2 is also provided between the cross block and the cross beam, one end of the reinforcing rod 2 is fixedly connected to the top wall of the cross block, and the other end passes through the cross beam and is slidably connected to it, and the number of the reinforcing rods 2 is two, and the two reinforcing rods 2 are symmetrically arranged with the cylinder 3 as the center, and the axes of the two reinforcing rods 2 are parallel to the axes of the cylinder 3.

[0011] Preferably, the chuck includes a clamping part and a connecting part. The clamping part adopts a cylindrical structure, and a through hole is opened in the center thereof, which runs through the top and bottom. The center of the through hole coincides with the opening path of the hole opener. The connecting part is vertically fixed on the end face of the clamping part and is fixedly connected to the clamping arm.

[0012] Preferably, the protective cover is made of transparent material, and its top wall is fixedly connected to the lifting end of the lifting bracket. An exhaust port is opened in the center of the top wall of the protective cover, and the exhaust port is connected to the air inlet of the exhaust device through an air pipe. A filter is also provided at the air inlet of the exhaust device to filter impurities in the gas entering the exhaust device.

[0013] Preferably, the hole opener includes a hole opening part and a cooling part, wherein the hole opening part is used to perform hole opening operations on the workpiece, the cooling part is connected to the cooling tank through a pipeline, a piston is provided in the cooling tank, and the inner cavity of the cooling tank is divided into a liquid cavity and an air cavity by the piston, the liquid cavity is used to store cutting fluid, and the air cavity is connected to the exhaust end of the vacuum device, and the gas discharged from the exhaust end enters the air cavity, thereby increasing the air pressure in the air cavity and pushing the piston toward the liquid cavity, so that the cutting fluid in the liquid cavity is injected into the cooling part and sprayed out, thereby cooling the drill bit of the hole opening part.

[0014] Preferably, an opening is provided on the table top of the workbench and is communicated with the interior of the base; a waste liquid tank is provided below the opening, and the opening extends into the waste liquid tank through a pipe.

[0015] The present invention provides an automated hole-punching device for metal parts design. It has the following beneficial effects: 1. The present invention cooperates with the displacement device, the angle adjustment device and the clamping and hole-opening mechanism to make the clamping and hole-opening mechanism suitable for effectively clamping metal parts of various sizes and shapes, and synchronously realizes the hole-opening operation at the clamping position, thereby realizing automated hole-opening operation.

[0016] 2. The present invention arranges the clamping part of the chuck so that during the hole-making process, a portion of the cutting fluid always remains in the through hole, that is, the hole-making point is always in contact with the cutting fluid. On the one hand, the contact time between the cutting fluid, the drill bit and the hole-making point is increased, avoiding the phenomenon of high-temperature accumulation. On the other hand, the inner wall of the clamping part blocks the impurities splashed during the hole-making process, and cooperates with the buffer layer formed by the accumulation of cutting fluid to reduce the phenomenon of impurities splashing, thereby reducing the difficulty of subsequent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 Schematic diagram of the three-dimensional distribution of the clamping and opening mechanism in the present invention; Figure 3 A three-dimensional schematic diagram of the clamping and opening mechanism of the present invention; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 Schematic diagram of the structure of the clamping and opening mechanism of the present invention; Figure 6 Schematic diagram of the internal structure of the cooling tank in the present invention; Figure 7 It is a structural schematic diagram of the chuck in the present invention.

[0018] Among them, 1. workbench; 2. base; 3. protective cover; 4. translation bracket; 5. dual-axis turntable; 6. support frame; 7. guide rail; 8. electric push rod 1; 9. base; 10. cylinder 1; 11. connecting plate 1; 12. rotating seat; 13. connecting plate 2; 14. slide 1; 15. clamping arm; 16. chuck; 1601, clamping part; 1602, connecting part; 1603, through hole; 17. connecting rod; 18. U-shaped frame; 19. cylinder 2; 20. crossbeam; 21. hole opener; 22. support rod; 23. slide 2; 24. cylinder 3; 25. jumper block; 26. slide 3; 27. reinforcement rod 1; 28. reinforcement rod 2; 29. ​​lifting bracket; 30. cooling tank; 31. piston; 32. opening; 33. waste liquid tank. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] Please see the attached Figure 1 -Attached Figure 7, an embodiment of the present invention provides an automated hole-opening device for designing metal parts, comprising a workbench 1, a base 2 being fixedly connected to the center of the upper surface of the workbench 1, an angle adjustment device being respectively passed through and slidably connected to the side walls of the base 2, a displacement device being provided between the angle adjustment device and the base 2, a clamping hole-opening mechanism being fixedly installed at the output end of the angle adjustment device, the angle adjustment device being driven to approach or move away from the center of the base 2 by the displacement device, the clamping angle and position of the workpiece by the clamping hole-opening mechanism being adjusted by the angle adjustment device, the clamping hole-opening mechanism being used to perform double-sided clamping and side contact on the workpiece to form a three-point clamping structure, and at the same time, a hole-opening operation being performed at the center position of the double-sided clamping position, a protective cover 3 matching it being provided above the base 2, and when opening a hole, the protective cover 3 covers the base 2 to form a chamber isolated from the outside world, and an exhaust device is provided on the top of the protective cover 3 for extracting gas in the chamber.

[0021] Through the coordination of the displacement device, the angle adjustment device and the clamping and hole-opening mechanism, the clamping and hole-opening mechanism is suitable for effectively clamping metal parts of various sizes and shapes, and performing the hole-opening operation synchronously at the clamping position, thereby realizing the automated hole-opening operation.

[0022] The cooperation between the protective cover 3 and the exhaust device can avoid the problem of debris splashing during the hole opening process, and can also maintain a slightly negative pressure in the chamber to prevent dust and other fumes from escaping.

[0023] Please see the attached Figure 1 -Attached Figure 5The angle adjustment device includes a translation bracket 4, which is placed vertically in the base 2, with its moving end facing the center of the base 2, and the moving trajectory of the moving end is parallel to the side wall of the base 2. The moving end of the translation bracket 4 is fixedly connected to the dual-axis turntable 5, and the translation bracket 4 is fixedly connected to the side of the base 2 away from the center of the base 2 with a support frame 6. The support frame 6 passes through and is slidably connected to the side wall of the base 2. A guide rail 7 is provided at the bottom of the support frame 6. The bottom of the guide rail 7 is fixedly connected to the upper surface of the workbench 1, and the sliding end of the guide rail 7 is fixedly connected to the bottom of the support frame 6. The displacement device includes an electric push rod 8, the outer wall of the electric push rod 8 is fixedly connected to the outer wall of the base 2, and the output end of the electric push rod 8 passes through the side wall of the base 2 and is fixedly connected to the support frame 6. The support frame 6 is driven by the electric push rod 8 to approach or move away from the center of the base 2 and move along the trajectory of the guide rail 7. The clamping and opening mechanism includes a base 9, one side of which is fixedly connected to the output end of the dual-axis turntable 5, and a cylinder 10 is fixedly connected to the middle of the other side of the base 9. The output end of the cylinder 10 is fixedly connected to a connecting plate 11, and the side wall of the connecting plate 11 is fixedly connected to a rotating seat 12. The other side of the rotating seat 12 is fixedly connected to a connecting plate 2 13 symmetrically arranged with the connecting plate 11. With the cylinder 10 as the center, two symmetrical slide grooves 14 are opened on the side wall of the base 9, and a clamping arm is slidably connected in the slide groove 14. 15, the clamping arm 15 is fixedly connected to the clamping head 16 at one end away from the slide groove 14, the middle parts of the two clamping arms 15 are rotatably connected to one end of the connecting rod 17, and the other end of the connecting rod 17 is rotatably connected to the rotating seat 12. The two clamping arms 15 are also pierced and slidably connected to the side of the clamping head 16 and the two end faces of the U-shaped frame 18 are respectively penetrated and slidably connected to the upper and lower parts of the base 9, and the outer wall of the connecting plate 2 13 is fixedly connected to the cylinder 2 19, and the output end of the cylinder 2 19 is fixedly connected to the center of the U-shaped frame 18. A crossbeam 20 is disposed above the clamping arm 15. A hole saw 21 is disposed at one end of the crossbeam 20, and a support rod 22 is fixedly connected to the other end. The support rod 22 is embedded in and slidably connected to two slide grooves 23 on both sides of the base 9. A cylinder 3 24 is fixedly connected to the middle of the crossbeam 20. A bridge block 25 is fixedly connected to the output end of the cylinder 3 24. The bottom wall of the bridge block 25 is fixedly connected to the outer wall of one of the clamping arms 15. A bridge slot 3 26 is formed in the middle of the bridge block 25. The bridge slot 3 26 is sleeved and slidably connected to one cross arm of the U-shaped frame 18. The clamping head 16 includes a clamping portion 1601 and a connecting portion 1602. The clamping portion 1601 has a cylindrical structure and a through hole 1603 extending vertically through the center thereof. The center of the through hole 1603 coincides with the hole opening path of the hole saw 21. The connecting portion 1602 is vertically fixed to the end surface of the clamping portion 1601 and is fixedly connected to the clamping arm 15.

[0024] The setting of the connecting portion 1602 ensures that there is a certain distance between the clamping arm 15 and the workpiece during clamping, thereby allowing it to avoid the steps at the edge of the workpiece during clamping, making it suitable for clamping workpieces with a certain depth.

[0025] By adjusting the distance between the chuck 16 and the corresponding clamping point on the workpiece with the X and Y coordinate axes as the reference through the displacement device and the translation bracket 4, and adjusting the relative clamping angle between the chuck 16 and the corresponding clamping point on the workpiece through the dual-axis turntable 5, precise clamping can be achieved.

[0026] With the workpiece's position as a plane, the displacement device and translation bracket 4 are used to adjust the horizontal distance between the chuck 16 and the corresponding clamping point on the workpiece in two directions. Specifically, the displacement device moves the chuck 16 perpendicular to the sidewall of the base 2, the translation bracket 4 moves the chuck 16 parallel to the sidewall of the base 2, and the dual-axis turntable 5 rotates the chuck 16 about two different axes, thereby achieving synchronized angle adjustment of the dual-axis rotation. The combined effects of the displacement device, translation bracket 4, and dual-axis turntable 5 ultimately enable the chuck 16 to precisely fit the corresponding clamping point on the workpiece and securely clamp it.

[0027] After the two symmetrically arranged chucks 16 move to the corresponding clamping points, the cylinder 10 contracts and pulls the two clamping arms 15 relatively close together through the two connecting rods 17, so that the two chucks 16 are respectively close to the front and back sides of the corresponding clamping points, and finally contact and clamp. Then the cylinder 2 19 pushes the U-shaped frame 18 to move closer to the edge of the workpiece, and finally the workpiece is side-contacted. The front and back clamping and the side contact form a three-point clamping structure to achieve a stable clamping and fixation of the workpiece at this point. Further combined with the simultaneous three-point clamping strategy of the four points in the four directions, the workpiece is finally completely and firmly clamped. At the same time, since the clamping point is the hole opening position, at this time, the hole opening path of the hole opener 21 is perpendicular to the hole opening position and matches it, the drill bit of the hole opener 21 is driven by the cylinder 3 24 to move toward the hole opening position, and finally the hole opening operation is completed.

[0028] Please see the attached Figure 5 A reinforcing rod 1 (27) is also provided between connecting plate 11 and base 9. One end of reinforcing rod 1 (27) is fixedly connected to the side wall of connecting plate 11, and the other end passes through and slides into base 9. There are two reinforcing rods 1 (27), symmetrically arranged around cylinder 10, with their axes parallel to the axis of cylinder 10. A reinforcing rod 2 (28) is also provided between bridge block 25 and crossbeam 20. One end of reinforcing rod 28 is fixedly connected to the top wall of bridge block 25, and the other end passes through and slides into crossbeam 20. There are two reinforcing rods 28, symmetrically arranged around cylinder 3 (24), with their axes parallel to the axis of cylinder 3 (24).

[0029] The arrangement of reinforcing rod 1 27 and reinforcing rod 2 28 is to prevent cylinder 1 10 and cylinder 3 24 from being affected by radial torque, which not only ensures the stability of clamping, but also prevents cylinder 10 and cylinder 3 24 from being damaged by radial torque.

[0030] Please see the attached Figure 1 With attached Figure 6 The protective cover 3 is made of a transparent material, and its top wall is fixedly connected to the lifting end of the lifting bracket 29. An exhaust port is provided at the center of the top wall of the protective cover 3. The exhaust port is connected to the air inlet of the exhaust device through an air pipe. A filter is also provided at the air inlet of the exhaust device to filter impurities in the gas entering the exhaust device. The hole opener 21 includes a hole opening part and a cooling part, wherein the hole opening part is used to perform hole opening operations on the workpiece. The cooling part is connected to the cooling tank 30 through a pipeline. A piston 31 is provided in the cooling tank 30. The inner cavity of the cooling tank 30 is divided into a liquid cavity and an air cavity by the piston 31. The liquid cavity is used to store cutting fluid. The air cavity is connected to the exhaust end of the exhaust device. The gas discharged from the exhaust end enters the air cavity, which increases the air pressure in the air cavity and pushes the piston 31 toward the liquid cavity, so that the cutting fluid in the liquid cavity is injected into the cooling part and sprayed out, thereby cooling the drill bit of the hole opening part. An opening 32 is formed on the surface of the workbench 1 and is communicated with the interior of the base 2 . A waste liquid tank 33 is provided below the opening 32 , and the opening 32 extends into the waste liquid tank 33 through a pipe.

[0031] When drilling, the lifting bracket 29 lowers the protective cover 3, closing it with the base 2 to form a chamber isolated from the outside world. The vacuum device is activated, extracting the gas from the chamber, creating a slightly negative pressure state, thereby preventing the escape of smoke and dust generated by the drilling. Simultaneously, the smoke and dust are filtered through a filter, and the filtered gas enters the air cavity of the cooling tank 30, increasing the air pressure within the air cavity and pushing the piston 31 toward the liquid cavity. The cutting fluid in the liquid cavity is then injected into the cooling section and ejected, cooling the drill bit at the drilling site. Meanwhile, the used cutting fluid enters the waste liquid tank 33 through a pipe from the opening 32 for recovery.

[0032] Please see the attached Figure 7 It should be noted that the setting of the clamping part 1601 of the chuck 16 ensures that during the hole opening process, some cutting fluid always remains in the through hole 1603, that is, the hole opening point is always in contact with the cutting fluid. On the one hand, the contact time between the cutting fluid, the drill bit and the hole opening point is increased, avoiding the phenomenon of high temperature accumulation. On the other hand, the inner wall of the clamping part 1601 blocks the impurities splashed during the hole opening process, and cooperates with the buffer layer formed by the accumulation of cutting fluid to reduce the phenomenon of impurities splashing, thereby reducing the difficulty of subsequent cleaning.

[0033] At the same time, since this embodiment uses the method of supplying cutting fluid by inputting the gas discharged from the exhaust device into the cooling tank 30 for pressurization, the cutting fluid flow rate and flow rate that can be supplied by this supply method are lower than those of traditional independent supply equipment. Therefore, the above-mentioned method of retaining the cutting fluid in the through hole 1603 solves the impact caused by the reduction in the supply amount of the cutting fluid.

[0034] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automated hole-punching device for metal parts design, comprising a workbench (1), characterized in that: The center of the upper surface of the workbench (1) is fixedly connected to a base (2), and the side walls of the base (2) are respectively penetrated and slidably connected with angle adjustment devices. A displacement device is provided between the angle adjustment device and the base (2). The output end of the angle adjustment device is fixedly installed with a clamping and opening mechanism. The angle adjustment device is driven to approach or move away from the center of the base (2) by the displacement device. The clamping angle and position of the workpiece by the clamping and opening mechanism are adjusted by the angle adjustment device. The clamping and opening mechanism is used to clamp the workpiece on both sides and to contact the sides to form a three-point clamping structure, and at the same time, a hole opening operation is performed at the center position of the double-sided clamping. A protective cover (3) matching the base (2) is provided above the base (2). When opening a hole, the protective cover (3) covers the base (2) to form a chamber isolated from the outside world. A vacuum device is provided on the top of the protective cover (3) to extract the gas in the chamber.

2. The automatic hole-punching device for metal parts design according to claim 1, characterized in that: The angle adjustment device includes a translation bracket (4), the translation bracket (4) is vertically placed in the base (2), and its moving end faces the center of the base (2), and the moving trajectory of the moving end is parallel to the side wall of the base (2), the moving end of the translation bracket (4) is fixedly connected to the dual-axis turntable (5), the translation bracket (4) is fixedly connected to the side of the base (2) away from the center of the base (2), the support frame (6) passes through and is slidably connected to the side wall of the base (2), a guide rail (7) is provided at the bottom of the support frame (6), the bottom of the guide rail (7) is fixedly connected to the upper surface of the workbench (1), and the sliding end of the guide rail (7) is fixedly connected to the bottom of the support frame (6).

3. The automatic hole-punching device for metal parts design according to claim 2, characterized in that: The displacement device includes an electric push rod (8), the outer wall of which is fixedly connected to the outer wall of the base (2), and the output end of which passes through the side wall of the base (2) and is fixedly connected to the support frame (6). The electric push rod (8) drives the support frame (6) to move closer to or away from the center of the base (2) and move along the track of the guide rail (7).

4. The automatic hole-punching device for metal parts design according to claim 2, characterized in that: The clamping and opening mechanism includes a base (9), one side of the base (9) is fixedly connected to the output end of the dual-axis turntable (5), the middle part of the other side of the base (9) is fixedly connected to a cylinder 1 (10), the output end of the cylinder 1 (10) is fixedly connected to a connecting plate 1 (11), the side wall of the connecting plate 1 (11) is fixedly connected to a rotating seat (12), the other side of the rotating seat (12) is fixedly connected to a connecting plate 2 (13) symmetrically arranged with the connecting plate 1 (11), with the cylinder 1 (10) as the center, two symmetrical sliding grooves 1 (14) are opened on the side wall of the base (9), and a clamping arm ( 15), the clamping arm (15) is fixedly connected to a clamping head (16) at one end away from the slide groove (14), the middle parts of the two clamping arms (15) are rotatably connected to one end of the connecting rod (17), the other end of the connecting rod (17) is rotatably connected to the rotating seat (12), and the two clamping arms (15) are also penetrated and slidably connected to a U-shaped frame (18) on the side close to the clamping head (16), the two end faces of the U-shaped frame (18) respectively penetrate and slidably connect to the upper and lower parts of the base (9), the outer wall of the connecting plate (13) is fixedly connected to the cylinder (19), and the output end of the cylinder (19) is fixedly connected to the center of the U-shaped frame (18).

5. The automatic hole-punching device for metal parts design according to claim 4, characterized in that: A reinforcing rod (27) is further provided between the connecting plate (11) and the base (9), one end of the reinforcing rod (27) being fixedly connected to the side wall of the connecting plate (11), and the other end being passed through and slidably connected to the base (9), and the number of the reinforcing rods (27) is two, and the two reinforcing rods (27) are symmetrically arranged with the cylinder (10) as the center, and the axes of the two reinforcing rods (27) are parallel to the axis of the cylinder (10).

6. The automatic hole-punching device for metal parts design according to claim 4, characterized in that: A crossbeam (20) is provided above the clamping arm (15), one end of the crossbeam (20) is provided with a hole opener (21), and the other end is fixedly connected to a support rod (22), the support rod (22) is embedded in and slidably connected to the second slide groove (23) on both sides of the base (9), the middle of the crossbeam (20) is fixedly connected to the third cylinder (24), the output end of the third cylinder (24) is fixedly connected to a cross-connection block (25), the bottom wall of the cross-connection block (25) is fixedly connected to the outer wall of one of the clamping arms (15), and the middle of the cross-connection block (25) is provided with a slide groove. Three (26), the slide groove three (26) is sleeved and slidably connected to a horizontal arm of the U-shaped frame (18), and a reinforcing rod two (28) is also provided between the cross-block (25) and the cross beam (20), one end of the reinforcing rod two (28) is fixedly connected to the top wall of the cross-block (25), and the other end passes through the cross beam (20) and is slidably connected thereto, and the number of the reinforcing rod two (28) is two, and the two reinforcing rods two (28) are symmetrically arranged with the cylinder three (24) as the center, and the axes of the two reinforcing rods two (28) are parallel to the axis of the cylinder three (24).

7. The automatic hole-punching device for metal parts design according to claim 6, characterized in that: The chuck (16) comprises a clamping portion (1601) and a connecting portion (1602). The clamping portion (1601) has a cylindrical structure and a through hole (1603) extending vertically therethrough is provided at its center. The center of the through hole (1603) coincides with the hole opening path of the hole opener (21). The connecting portion (1602) is vertically fixed to the end face of the clamping portion (1601) and is fixedly connected to the clamping arm (15).

8. The automatic hole-punching device for metal parts design according to claim 7, characterized in that: The protective cover (3) is made of a transparent material, and its top wall is fixedly connected to the lifting end of the lifting bracket (29). An exhaust port is provided at the center of the top wall of the protective cover (3), and the exhaust port is connected to the air inlet of the exhaust device through an air pipe. A filter is also provided at the air inlet of the exhaust device for filtering impurities in the gas entering the exhaust device.

9. The automatic hole-punching device for metal parts design according to claim 8, characterized in that: The hole opener (21) includes a hole opening part and a cooling part, wherein the hole opening part is used to perform a hole opening operation on a workpiece, the cooling part is connected to a cooling tank (30) through a pipeline, a piston (31) is provided in the cooling tank (30), and the inner cavity of the cooling tank (30) is divided into a liquid cavity and an air cavity by the piston (31), the liquid cavity is used to store cutting fluid, and the air cavity is connected to the exhaust end of the air pumping device, and the gas discharged from the exhaust end enters the air cavity, so that the air pressure in the air cavity increases, pushing the piston (31) toward the liquid cavity, so that the cutting fluid in the liquid cavity is injected into the cooling part and sprayed out, thereby cooling the drill bit of the hole opening part.

10. The automatic hole-punching device for metal parts design according to claim 1, characterized in that: An opening (32) is provided on the tabletop of the workbench (1) and is communicated with the interior of the base (2). A waste liquid tank (33) is provided below the opening (32), and the opening (32) extends into the waste liquid tank (33) through a pipe.

Images