A hardware processing punching device

Abstract

The present invention relates to the technical field of circular tubular hardware processing and punching, and specifically, to a hardware processing and punching device. The device comprises a handheld punching gun body, a drill bit is rotatably mounted on one end of the handheld punching gun body, a first transmission assembly is fixedly mounted on the outer wall of the handheld punching gun body near the mounting position of the drill bit, a shell for collecting waste generated during punching is fixedly mounted on the outer end of the first transmission assembly, and both ends of the shell are retractable structures. In the present invention, the first transmission assembly is conducive to ensuring the stability of the drill bit of the handheld punching gun moving toward the shell, and preventing the drill bit from slipping and deviating from the outer wall of the circular tubular hardware during punching, thereby affecting the normal punching work; the second transmission assembly drives the circular tubular hardware fixed inside the shell to move axially, and a row of holes can be punched on the outer wall of the circular tube as needed, so that the two rotating assemblies rotate to drive the circular tubular hardware fixed inside the shell to rotate, and a circle of holes can be punched on the outer wall of the circular tube as needed.

Description

Technical Field

[0001] The invention relates to the technical field of circular tubular hardware processing and punching, in particular to a hardware processing and punching device. Background Art

[0002] Hardware accessories refer to machine parts or components made of hardware, as well as some small hardware products. They can be used alone or as auxiliary tools, such as hardware tools, hardware components, daily hardware, construction hardware, and security products. Most of the small hardware products are not final consumer goods, but supporting products of industrial manufacturing, semi-finished products, and tools used in the production process.

[0003] At present, in order to facilitate the processing of circular tubular hardware workpieces, a drilling positioning device is usually required. However, when the handheld drilling device in the prior art is used to drill holes in circular tubular hardware accessories, it is usually difficult to ensure the accuracy of the positioning of the circular tubular hardware workpiece to be processed. It is easy for the drill bit of the handheld drilling machine to be non-perpendicular to the circular tubular hardware workpiece to be processed, resulting in the holes on both sides of the outer wall of the circular tube being not coaxial. It is also difficult to ensure the stability of the position between the drill bit of the handheld drilling machine and the circular tubular hardware workpiece to be processed, and the drill bit is prone to slippage and deviation, affecting the normal drilling work. In addition, in actual use, it is usually necessary to drill multiple holes on the outer wall of the same circular tubular hardware workpiece, which requires that the workpiece to be processed, after being fixed, can change the hole position required for drilling according to needs.

[0004] In view of this, we propose a hardware processing punching device. Summary of the invention

[0005] The purpose of the present invention is to provide a hardware processing punching device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides a hardware processing punching device, comprising a handheld punching gun body, a drill bit is rotatably installed at one end of the handheld punching gun body, a first transmission assembly is fixedly provided on the outer wall of the handheld punching gun body near the installation position of the drill bit, the outer end of the first transmission assembly is fixedly provided with a shell for collecting waste chips generated during punching, a through hole is opened on the outer wall of the shell, the drill bit is movably matched with the through hole, and the two ends of the shell are telescopic structures, a second transmission assembly is fixedly provided on the outer wall of the shell, the two ends of the second transmission assembly are respectively movably matched with the two ends of the shell, the second transmission assembly is used to control the telescopic adjustment length of the two ends of the shell, both ends of the shell are fixedly provided with rotating assemblies, the inner ends of the two rotating assemblies are extended into the interior of the shell, and the two ends of the second transmission assembly are respectively rotatably connected to the outer walls of the two rotating assemblies near the outer ends.

[0007] As a further improvement of the present technical solution, the first transmission assembly includes a support plate, which is fixedly connected to the outer wall of the handheld punching gun body near the installation position of the drill bit, and first electric push rods are symmetrically provided on both sides of the support plate, and the fixed ends of the two first electric push rods are respectively fixedly connected to the two sides of the support plate, and the movable ends of the two first electric push rods are respectively fixedly arranged on both sides of the outer wall of the shell near the through hole.

[0008] As a further improvement of the present technical solution, the shell includes an outer shell, the through hole is opened on the outer wall of the outer shell, and inner shells are symmetrically provided at both ends of the inner wall of the outer shell, the two inner shells are slidably connected to the inner wall of the outer shell, and the outer walls of the two inner shells are fixedly provided with extended edges near the outer ends, and the inner side surfaces of the two extended edges are respectively movably matched with the two ends of the outer shell.

[0009] As a further improvement of the technical solution, the wall thickness of the two inner shell inner walls at one end where they are close to each other is narrow, and the wall thickness of the two inner shell inner walls at one end where they are far away from each other is thick.

[0010] As a further improvement of the present technical solution, the second transmission assembly includes a support block, which is fixedly connected to the outer wall of the outer shell, and second electric push rods are symmetrically provided on both sides of the support block, and the fixed ends of the two second electric push rods are respectively fixedly connected to the two sides of the support block, and the movable ends of the two second electric push rods are respectively fixedly provided with guide plates, and the inner surfaces of the two guide plates are respectively movably matched with the two outer ends of the inner shell, and the lower ends of the two guide plates are respectively rotatably connected to the outer walls of the two rotating assemblies close to the outer ends.

[0011] As a further improvement of the present technical solution, the two rotating assemblies each include a rotating column, the two rotating columns are respectively fixedly connected to the two inner shells, and the inner ends of the two rotating columns respectively extend into the interior of the two inner shells, and the outer ends of the two rotating columns respectively extend to the outside of the two inner shells, and the outer ends of the two rotating columns are fixedly provided with hand wheels, and the lower ends of the two guide plates are respectively rotatably connected to the outer walls of the two rotating columns close to the outer ends.

[0012] As a further improvement of the present technical solution, the outer surfaces of the two inner shells are provided with scale lines, the outer walls of the two guide plates are provided with perspective holes, the perspective holes are movably matched with the scale lines, and the inner surfaces of the two guide plates are respectively fixed with limit assemblies near the upper ends, and the two limit assemblies are respectively movably matched with the inner surfaces of the two extended edges.

[0013] As a further improvement of the present technical solution, the two limit assemblies each include a clamping plate, the outer surfaces of the two clamping plates are respectively movably matched with the inner surfaces of the two extended edges, the outer surfaces of the two clamping plates near the upper end portions are rotatably provided with screws, the outer ends of the two screws respectively extend to the outside of the two guide plates, and the two screws are respectively threadedly connected to the two guide plates, and the outer surfaces of the two clamping plates near the two sides of the screws are fixed with guide rods, the outer ends of the guide rods respectively extend to the outside of the two guide plates, and the guide rods are respectively slidably connected to the two guide plates.

[0014] As a further improvement of the technical solution, a circle of latching teeth is fixedly provided on the inner surfaces of the two extending edges, and latching grooves are opened on the outer surfaces of the two clamping plates, and the latching grooves are movably matched with the latching teeth respectively.

[0015] As a further improvement of the technical solution, a scraping assembly is fixedly provided at the inner end of the two rotating columns, and the two scraping assemblies include fixed rods. The two fixed rods are respectively fixedly connected to the inner end of the two rotating columns, and springs are respectively fixed inside the two fixed rods. The outer ends of the two springs are respectively fixed with movable rods. The outer walls of the two movable rods are respectively slidably connected to the inner walls of the two fixed rods, and the outer ends of the two movable rods are fixed with scraping rods, and the two scraping rods are movably matched with the inner wall of the circular tubular hardware that is punched.

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

[0017] 1. In the hardware processing punching device, before punching a circular tubular hardware workpiece, the second transmission component is started to extend its movable end and drive the shell to open. At this time, the circular tubular hardware workpiece to be punched is placed inside the shell, and the movable end of the second transmission component is contracted, so that the two ends of the circular tubular hardware workpiece can be clamped and positioned.

[0018] 2. In the hardware processing and punching device, after the circular tubular hardware to be processed is clamped and positioned, the first transmission component is started to cause the movable end to contract and drive the drill bit of the handheld punching gun body to move toward the shell body until the drill bit is inserted into the interior of the shell body, and the circular tubular hardware fixed inside the shell is punched. At this time, the first transmission component is conducive to ensuring the stability of the drill bit of the handheld punching gun moving toward the shell body, preventing the drill bit from slipping and deviating from the outer wall of the circular tubular hardware when drilling, thereby affecting the normal drilling work.

[0019] 3. In the hardware processing punching device, during the process of punching holes in a circular tubular hardware to be processed, the movable end of one of the second transmission components is extended, and the movable end of the other second transmission component is contracted by the same length, thereby driving the circular tubular hardware fixed inside the shell to move axially, so that a row of holes can be punched in the outer wall of the circular tube as needed. The circular tubular hardware fixed inside the shell is driven to rotate by the two rotating components, so that a circle of holes can be punched in the outer wall of the circular tube as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the handheld punch gun body and the shell as well as the components of the present invention;

[0021] Figure 2 It is a side view of the overall structure of the handheld punch gun body and the shell as well as the components of the present invention;

[0022] Figure 3 This is a disassembled diagram of the overall structure of the handheld punching gun body, the shell and various components of the present invention;

[0023] Figure 4 It is a cross-sectional view of the overall structure between the drill bit, the housing and various components of the present invention;

[0024] Figure 5 It is a side view of the overall structure of the drill bit, the housing and various components of the present invention;

[0025] Figure 6 It is a cross-sectional view of the overall structure of the circular tubular hardware of the present invention after a row of holes are punched inside the shell;

[0026] Figure 7 It is a disassembled diagram of the overall structure between the housing and the rotating assembly as well as the scraping assembly and the second transmission assembly of the present invention;

[0027] Figure 8 It is a schematic diagram of the overall structure between the second component and the limiting component of the present invention;

[0028] Fig. 9 It is a cross-sectional view of the overall structure between the housing and the scraping assembly, the rotating assembly and the limiting assembly of the present invention;

[0029] Fig.10 It is a disassembled diagram of the overall structure between the inner shell and the limiting assembly in the shell of the present invention;

[0030] Fig.11 It is a disassembled diagram of the overall structure between the inner shell, the rotating assembly and the limiting assembly in the shell of the present invention;

[0031] Fig.12 It is a schematic diagram of the overall structure of the limit assembly of the present invention;

[0032] Fig.13 It is a schematic diagram of the overall structure between the rotating component and the scraping component of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 1. Handheld drilling gun body; 10. Drill bit;

[0035] 2. First transmission assembly; 20. Support plate; 21. First electric push rod;

[0036] 3. Shell; 30. Through hole; 31. Outer shell; 32. Inner shell; 320. Scale line; 33. Extended edge; 330. Gear;

[0037] 4. Second transmission assembly; 40. Support block; 41. Second electric push rod; 42. Guide plate; 420. Perspective hole;

[0038] 5. Rotating assembly; 50. Rotating column; 51. Hand wheel;

[0039] 6. Limiting assembly; 60. Clamp; 600. Slot; 61. Screw; 62. Guide rod;

[0040] 7. Scraping assembly; 70. Fixed rod; 71. Spring; 72. Movable rod; 73. Scraping rod. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in 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.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] See also Figure 1-Figure 13As shown, the present embodiment provides a hardware processing punching device, including a handheld punching gun body 1, a drill bit 10 is rotatably mounted on one end of the handheld punching gun body 1, a first transmission assembly 2 is fixedly mounted on the outer wall of the handheld punching gun body 1 near the mounting position of the drill bit 10, a shell 3 for collecting waste chips generated during punching is fixedly mounted on the outer end of the first transmission assembly 2, a through hole 30 is opened on the outer wall of the shell 3, the drill bit 10 is movably matched with the through hole 30, and the two ends of the shell 3 are retractable structures, a second transmission assembly 4 is fixedly mounted on the outer wall of the shell 3, and both ends of the second transmission assembly 4 The second transmission assembly 4 is respectively matched with the two ends of the shell 3, and the second transmission assembly 4 is used to control the extension and retraction of the two ends of the shell 3. Before punching the round tubular hardware to be processed, the second transmission assembly 4 is started to extend its movable end and drive the shell 3 to open. At this time, the round tubular hardware to be punched is placed in the shell 3, and the movable end of the second transmission assembly 4 is contracted, so that the two ends of the round tubular hardware to be processed can be clamped and positioned; after the round tubular hardware to be processed is clamped and positioned, the first transmission assembly 2 is started to make it The contraction of the movable end drives the drill bit 10 of the handheld punch gun body 1 to move toward the shell 3 until the drill bit 10 extends into the interior of the shell 3 and performs drilling processing on the tubular hardware fixed inside the shell 3. At this time, the first transmission component 2 is conducive to ensuring the stability of the drill bit 10 of the handheld punch gun body 1 moving toward the shell 3, preventing the drill bit 10 from slipping and deviating from the outer wall of the tubular hardware when drilling, which affects the normal drilling work. Rotating components 5 are fixed at both ends of the shell 3, and the inner ends of the two rotating components 5 extend into the shell 3. , and the two ends of the second transmission component 4 are respectively rotatably connected with the outer walls of the two rotating components 5 near the outer ends. In the process of punching holes in the circular tubular hardware to be processed, by extending the active end of one of the second transmission components 4, the active end of the other second transmission component 4 is contracted to the same length, driving the circular tubular hardware fixed inside the shell 3 to move axially, so that a row of holes can be punched in the outer wall of the circular tube as needed. By rotating the two rotating components 5 to drive the circular tubular hardware fixed inside the shell 3 to rotate, a circle of holes can be punched in the outer wall of the circular tube as needed.

[0044] On the basis of the above, the first transmission component 2 is further introduced and explained. The first transmission component 2 includes a support plate 20, which is fixedly connected to the outer wall of the handheld punching gun body 1 near the installation position of the drill bit 10. First electric push rods 21 are symmetrically arranged on both sides of the support plate 20. The fixed ends of the two first electric push rods 21 are respectively fixedly connected to the two sides of the support plate 20, and the movable ends of the two first electric push rods 21 are respectively fixedly arranged on both sides of the outer wall of the shell 3 near the through hole 30. By starting the first electric push rod 21, the movable end thereof contracts and drives the support plate 20 to move in the direction of the shell 3. At the same time, the support plate 20 drives the drill bit 10 of the handheld punching gun body 1 to vertically extend into the interior of the shell 3 to punch the circular tubular hardware to be processed fixed inside the shell 3. At this time, the two first electric push rods 21 are conducive to ensuring the stability of the position between the drill bit 10 and the circular tubular hardware, and preventing the drill bit 10 from slipping and deviating from the outer wall of the circular tubular hardware when punching, thereby affecting the normal punching work.

[0045] It should be specifically explained that the shell 3 includes an outer shell 31, and the through hole 30 is opened at the outer wall of the outer shell 31. Inner shells 32 are symmetrically provided at both ends of the inner wall of the outer shell 31. The two inner shells 32 are slidably connected to the inner wall of the outer shell 31, and the outer walls of the two inner shells 32 are fixedly provided with extension edges 33 near the outer ends. The inner side surfaces of the two extension edges 33 are respectively movably matched with the two ends of the outer shell 31. Before punching the circular tubular hardware to be processed, the movable ends of the two second transmission components 4 are extended to drive the inner shell 32 to extend to the outside of the outer shell 31, and the shell 3 is opened to a certain distance to facilitate the placement of the circular tubular hardware into the inner wall of the outer shell 31, and then the movable end of the second transmission component 4 is contracted to clamp and fix the two ends of the circular tubular hardware.

[0046] Furthermore, the inner walls of the two inner shells 32 are narrow at one end where they are close to each other, and thick at the other end where they are far away from each other. The inner walls of the inner shells 32 can be suitable for clamping and positioning at both ends of tubular hardware of different sizes. When the movable ends of the two second transmission assemblies 4 shrink and drive the two inner shells 32 to retract into the outer shell 31 respectively, the inner wall of the inner shell 32 is narrow at one end and thick at the other end, which can make the axis of the tubular hardware to be processed automatically coincide with the axis of the outer shell 31, thereby facilitating the verticality between the drill bit 10 and the tubular hardware and preventing the center of the holes punched on both sides of the outer wall of the circular tube from being coaxial. At the same time, the inner wall of the inner shell 32 is narrow at one end and thick at the other end, which can prevent the waste chips generated by punching from accumulating inside the inner shell 32.

[0047] As mentioned above, the second transmission assembly 4 includes a support block 40, which is fixedly connected to the outer wall of the shell 31, and second electric push rods 41 are symmetrically arranged on both sides of the support block 40. The fixed ends of the two second electric push rods 41 are respectively fixedly connected to the two sides of the support block 40, and the movable ends of the two second electric push rods 41 are respectively fixedly provided with guide plates 42. The inner surfaces of the two guide plates 42 are respectively movably matched with the outer ends of the two inner shells 32, and the lower ends of the two guide plates 42 are respectively rotatably connected to the outer walls of the two rotating assemblies 5 close to the outer ends. Before punching the circular tubular hardware to be processed, the second transmission assembly 4 is started to extend the movable ends of the two second electric push rods 41, and the two guide plates 42 are respectively driven to move toward the two end directions of the shell 31. At the same time, the two guide plates 42 respectively drive the two inner shells 32 to extend to the outside of the shell 31 until the inner ends of the two inner shells 32 are respectively aligned with the outer shell 31. An appropriate distance is left between the two ends to facilitate placing the tubular hardware to be processed into the interior of the shell 31 for subsequent punching processing; in the process of processing the tubular hardware to be processed, by extending the movable end of one of the second electric push rods 41, one of the inner shells 32 is driven to move in a direction away from one end of the shell 31, and the movable end of the other second electric push rod 41 is contracted by the same length, driving the other inner shell 32 to move in a direction close to the other end of the shell 31. At the same time, the two second electric push rods 41 drive the tubular hardware to be processed fixed inside the shell 31 to move axially with the movement of the inner shell 32, so that a row of holes can be punched on the outer wall of the circular tube as needed; by manually rotating the two rotating components 5, the rotation of the two rotating components 5 can drive the tubular hardware fixed inside the shell 3 to rotate, and a circle of holes can be punched on the outer wall of the circular tube as needed.

[0048] It is worth mentioning that the two rotating components 5 both include a rotating column 50, and the two rotating columns 50 are respectively fixedly connected to the two inner shells 32, and the inner ends of the two rotating columns 50 are respectively extended into the interior of the two inner shells 32, and the outer ends of the two rotating columns 50 are respectively extended to the outside of the two inner shells 32, and the outer ends of the two rotating columns 50 are respectively fixedly provided with hand wheels 51, and the lower ends of the two guide plates 42 are respectively rotatably connected to the outer walls of the two rotating columns 50 close to the outer ends. By manually rotating the two hand wheels 51, the two hand wheels 51 respectively drive the two rotating columns 50 to rotate, so that the two rotating columns 50 can respectively drive the two inner shells 32 fixedly connected to their outer walls to rotate. When the two inner shells 32 rotate, they can drive the cylindrical hardware to be processed, which is clamped and positioned inside the outer shell 31, to rotate, and the hole positions to be punched can be changed as needed, and a circle of holes can be punched on the outer wall of the cylindrical tube.

[0049] Furthermore, in order to ensure the uniformity of the hole spacing when a circle of holes is punched on the outer wall of the circular tubular hardware, scale lines 320 are provided on the outer surfaces of the two inner shells 32, and perspective holes 420 are opened on the outer walls of the two guide plates 42. The perspective holes 420 are movably matched with the scale lines 320, and the inner surfaces of the two guide plates 42 are respectively fixed with limit assemblies 6 near the upper ends. The two limit assemblies 6 are respectively movably matched with the inner surfaces of the two extended edges 33. When the degree displayed at the perspective hole 420 in the initial state of the circular tubular hardware is 0 degrees, after the circular tubular hardware is rotated a certain angle, the perspective hole 420 is observed again to intuitively see the angle of rotation of the circular tubular hardware, so as to ensure that the angle of rotation of the circular tubular hardware is consistent each time, thereby ensuring the uniformity of the hole spacing when a circle of holes is punched on the outer wall of the circular tubular hardware. After the circular tubular hardware is rotated a certain angle, the two limit assemblies 6 can ensure the stability of the structure after the rotation.

[0050] Moreover, the two limit assemblies 6 each include a clamping plate 60, the outer surfaces of the two clamping plates 60 are respectively movably matched with the inner surfaces of the two extension edges 33, the outer surfaces of the two clamping plates 60 near the upper ends are rotatably provided with screw rods 61, the outer ends of the two screw rods 61 respectively extend to the outside of the two guide plates 42, and the two screw rods 61 are respectively threadedly connected to the two guide plates 42, and the outer surfaces of the two clamping plates 60 near the screw rods 61 are fixed with guide rods 62 on both sides, the outer ends of the guide rods 62 respectively extend to the outside of the two guide plates 42, and the guide rods 62 are respectively slidably connected to the two guide plates 42. After rotating the rotating column 50 to drive the circular tubular hardware clamped by the inner shell 32 to rotate to the desired angle, the screw 61 is turned to move the screw 61 toward the outer surface of the guide plate 42. At the same time, the screw 61 drives the clamping plate 60 to press against the extended edge 33. Under the joint action of the guide plate 42 and the clamping plate 60, the extended edge 33 can be clamped, so that the circular tubular hardware can be limited after being rotated to a certain angle to ensure the stability of the structure; the guide rod 62 is conducive to ensuring the moving path of the clamping plate 60, and can prevent the clamping plate 60 from rotating with the screw 61 when the screw 61 is turned.

[0051] In addition, a circle of latch teeth 330 are fixedly provided on the inner surface of the two extended edges 33, and a latch groove 600 is opened on the outer surface of the two clamps 60. The latch grooves 600 are movably cooperated with the latch teeth 330 respectively. The latch teeth 330 and the latch grooves 600 are helpful to ensure the tightness of the clamping between the clamps 60 and the extended edges 33.

[0052] It is worth pointing out that the inner ends of the two rotating columns 50 are fixed with scraper assemblies 7, and the two scraper assemblies 7 include fixed rods 70. The two fixed rods 70 are fixedly connected to the inner ends of the two rotating columns 50 respectively. Springs 71 are fixed inside the two fixed rods 70 respectively. The outer ends of the two springs 71 are fixed with movable rods 72 respectively. The outer walls of the two movable rods 72 are slidably connected to the inner walls of the two fixed rods 70 respectively, and the outer ends of the two movable rods 72 are fixed with scraper rods 73. The two scraper rods 73 are movably matched with the inner wall of the circular tubular hardware for punching. After the circular tubular hardware to be processed is punched, the scraper rods 73 in the scraper assembly 7 can be driven to rotate by rotating the rotating column 50. While the scraper rods 73 rotate, the waste chips generated by the punching inside the circular tubular hardware can be scraped off, so as to prevent the waste chips from entering the inside of the circular tubular hardware through the holes and sticking to the inner wall of the circular tubular hardware, causing inconvenience in cleaning.

[0053] The above shows and describes 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 by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hardware processing punching device, comprising a handheld punching gun body (1), a drill bit (10) being rotatably mounted on one end of the handheld punching gun body (1), characterized in that: A first transmission assembly (2) is fixedly provided on the outer wall of the hand-held drilling gun body (1) near the installation position of the drill bit (10); a shell (3) for collecting waste chips generated during drilling is fixedly provided on the outer end of the first transmission assembly (2); a through hole (30) is opened on the outer wall of the shell (3); the drill bit (10) is movably matched with the through hole (30); and both ends of the shell (3) are of a telescopic structure; a second transmission assembly (4) is fixedly provided on the outer wall of the shell (3); both ends of the second transmission assembly (4) are movably matched with both ends of the shell (3); the second transmission assembly (4) is used to control the telescopic adjustment length of the two ends of the shell (3); both ends of the shell (3) are fixedly provided with a rotating assembly (5); the inner ends of the two rotating assemblies (5) extend into the interior of the shell (3); and the two ends of the second transmission assembly (4) are rotatably connected to the outer walls of the two rotating assemblies (5) near the outer ends; The first transmission assembly (2) comprises a support plate (20), the support plate (20) being fixedly connected to the outer wall of the handheld punch gun body (1) near the installation position of the drill bit (10), first electric push rods (21) being symmetrically arranged on both sides of the support plate (20), the fixed ends of the two first electric push rods (21) being respectively fixedly connected to the two sides of the support plate (20), and the movable ends of the two first electric push rods (21) being respectively fixedly arranged on the outer wall of the housing (3) near the two sides of the through hole (30); The housing (3) comprises an outer shell (31), the through hole (30) being provided on the outer wall of the outer shell (31), inner shells (32) being symmetrically provided at both ends of the inner wall of the outer shell (31), the two inner shells (32) being slidably connected to the inner wall of the outer shell (31), and extension edges (33) being fixedly provided on the outer walls of the two inner shells (32) near the outer ends, and the inner side surfaces of the two extension edges (33) being movably matched with the two ends of the outer shell (31) respectively; The thickness of the inner walls of the two inner shells (32) is thinner at one end where the inner walls are close to each other, and thicker at one end where the inner walls are far away from each other.

2. The hardware processing punching device according to claim 1, characterized in that: The second transmission assembly (4) comprises a support block (40), the support block (40) being fixedly connected to the outer wall of the outer shell (31), second electric push rods (41) being symmetrically arranged on both sides of the support block (40), the fixed ends of the two second electric push rods (41) being respectively fixedly connected to the two sides of the support block (40), the movable ends of the two second electric push rods (41) being respectively fixedly provided with guide plates (42), the inner surfaces of the two guide plates (42) being respectively movably matched with the outer ends of the two inner shells (32), and the lower ends of the two guide plates (42) being respectively rotatably connected to the outer walls of the two rotating assemblies (5) close to the outer ends.

3. The hardware processing punching device according to claim 2, characterized in that: The two rotating assemblies (5) each comprise a rotating column (50), the two rotating columns (50) being fixedly connected to the two inner shells (32) respectively, and the inner ends of the two rotating columns (50) respectively extend into the interior of the two inner shells (32), and the outer ends of the two rotating columns (50) respectively extend out of the exterior of the two inner shells (32), the outer ends of the two rotating columns (50) are each fixedly provided with a hand wheel (51), and the lower ends of the two guide plates (42) are respectively rotatably connected to the outer walls of the two rotating columns (50) near the outer ends.

4. The hardware processing punching device according to claim 2, characterized in that: The outer surfaces of the two inner shells (32) are provided with scale lines (320), the outer walls of the two guide plates (42) are provided with perspective holes (420), the perspective holes (420) are movably engaged with the scale lines (320), and the inner surfaces of the two guide plates (42) are respectively fixed with limit assemblies (6) near the upper ends, and the two limit assemblies (6) are respectively movably engaged with the inner surfaces of the two extended edges (33).

5. The hardware processing punching device according to claim 4, characterized in that: The two limit assemblies (6) each include a clamping plate (60), the outer surfaces of the two clamping plates (60) are respectively movably matched with the inner surfaces of the two extension edges (33), the outer surfaces of the two clamping plates (60) are rotatably provided with screw rods (61) near the upper ends, the outer ends of the two screw rods (61) respectively extend to the outside of the two guide plates (42), and the two screw rods (61) are respectively threadedly connected to the two guide plates (42), and the outer surfaces of the two clamping plates (60) are fixed with guide rods (62) on both sides near the screw rods (61), the outer ends of the guide rods (62) respectively extend to the outside of the two guide plates (42), and the guide rods (62) are respectively slidably connected to the two guide plates (42).

6. The hardware processing punching device according to claim 5, characterized in that: A circle of latching teeth (330) is fixedly provided on the inner surfaces of the two extended edges (33), and latching grooves (600) are provided on the outer surfaces of the two clamping plates (60), and the latching grooves (600) are movably matched with the latching teeth (330) respectively.

7. The hardware processing punching device according to claim 3, characterized in that: The inner ends of the two rotating columns (50) are fixedly provided with a scraping assembly (7), and the two scraping assemblies (7) include fixed rods (70), the two fixed rods (70) are respectively fixedly connected to the inner ends of the two rotating columns (50), springs (71) are respectively fixedly provided inside the two fixed rods (70), and movable rods (72) are respectively fixedly provided at the outer ends of the two springs (71), and the outer walls of the two movable rods (72) are respectively slidably connected to the inner walls of the two fixed rods (70), and the outer ends of the two movable rods (72) are respectively fixedly provided with a scraping rod (73), and the two scraping rods (73) are movably matched with the inner wall of the circular tubular hardware that is punched.

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