Perforating device for producing graphite mold

Abstract

The invention relates to a punching device for producing a graphite mold. The punching device comprises a machine base. The workbench is arranged on the machine base. The bearing seat is arranged on the top of the machine base in a sliding mode and located above the workbench. The connecting base is arranged on the bearing base in a sliding mode and has the elastic freedom degree moving in the vertical direction. The positioning assembly is rotationally arranged on the connecting seat; two leveling rods are hinged to the bottom of the positioning assembly, and the bottoms of the two leveling rods abut against the top wall of the workpiece; the punching assembly is arranged on the positioning assembly in a sliding mode and located between the two leveling rods. The punching assembly has the freedom degree extending in the vertical direction. The top wall of the workpiece is tapped; the positioning and punching device has the technical effect of positioning and punching on the cambered surface mold for producing the graphite mold.

Description

Technical Field

[0001] This application relates to the technical field of graphite mold production, and in particular to a punching device for producing graphite molds. Background Technology

[0002] Graphite molds are molds made of graphite material and used in various industrial processes, such as metal casting, glass forming, and electronic sintering. Graphite possesses properties such as high temperature resistance, good thermal conductivity, and high chemical stability, making it suitable as a mold material. The production process of graphite molds requires drilling holes in the mold.

[0003] Currently, graphite mold drilling tools can only drill holes on a single horizontal or circular surface. When drilling holes on a mold that has both a horizontal and a curved surface, it is necessary to first drill holes on the horizontal surface, then adjust the position of the mold and drill holes on the mold, which makes the drilling process complicated.

[0004] Patent (CN 216968263 U) discloses a drilling device for producing graphite molds, including a drilling frame with a support plate at the bottom. A first rotary motor is mounted on one outer wall of the drilling frame, and a first screw is located inside the drilling frame. One end of the first screw is fixedly connected to the output shaft of the first rotary motor, and the other end of the first screw is rotatably connected to the inner wall of the other side of the drilling frame via a bearing. A first nut is fitted onto the first screw, and a second rotary motor is connected to the bottom of the first nut. A fixing block is fixedly connected to the bottom of the output shaft of the second rotary motor, and a mounting hole is provided at the bottom of the fixing block, with a drilling needle inside the mounting hole. The above patent can adjust the position of the graphite mold and the drilling needle, and can clamp graphite molds of different sizes through a clamping mechanism; however, it is limited to adjusting flat molds and cannot perform drilling operations on curved surfaces.

[0005] Regarding the aforementioned technologies, the inventors believe that there are drawbacks such as the time-consuming and labor-intensive nature of drilling holes in curved molds. Summary of the Invention

[0006] To solve the above-mentioned technical problems, this application provides a drilling device for producing graphite molds.

[0007] This application provides a drilling device for producing graphite molds, which adopts the following technical solution:

[0008] A punching device for producing graphite molds, comprising:

[0009] Base;

[0010] The worktable is mounted on the machine base;

[0011] The support is slidably disposed on the top of the machine base and located above the worktable;

[0012] The connecting seat is slidably mounted on the bearing seat and has an elastic degree of freedom to move vertically;

[0013] A positioning component is rotatably mounted on the connecting seat; two sets of leveling rods are hinged to the bottom of the positioning component, and the bottom of both sets of leveling rods abuts against the top wall of the workpiece.

[0014] A drilling assembly is slidably mounted on the positioning assembly and located between the two sets of measuring rods; the drilling assembly has a degree of freedom extending vertically; it is used to drill holes in the top wall of the workpiece.

[0015] By adopting the above technical solution, two sets of measuring rods are set on the positioning component. The bottom end of the measuring rods is abutted against the upper surface of the workpiece by moving the connecting seat downward. When encountering the arc surface, the two sets of measuring rods are offset vertically. The positioning component drives the drilling component to deflect, so that the drilling component is perpendicular to the tangent direction of the arc surface, realizing the automatic positioning of the drilling component in the tangent direction of the arc surface. The drilling component slides on the positioning component, so that the drilling component moves to the drilling position. This makes the drilling component no longer suitable for drilling on a single flat surface, but can meet the requirements of drilling on workpieces with both flat and arc surfaces, and the drilling component can adapt to various styles of workpieces. It avoids manual adjustment of arc surface workpieces, improves work efficiency, and saves manpower.

[0016] Preferably, the positioning component includes:

[0017] A rotating shaft having a fixed end and a movable end; the movable end is rotatably mounted on the connecting seat.

[0018] The positioning seat is connected to the fixed end in the middle; the drilling assembly is slidably mounted on the positioning seat; the tops of the two sets of measuring rods are respectively hinged to both sides of the positioning seat;

[0019] Two drive rods, one end of which is slidably mounted on the positioning seat and abuts against both sides of the drilling assembly; the bottom of the two drive rods is hinged to the bottom of the two sets of leveling rods; the drive rods are perpendicular to the positioning seat.

[0020] By adopting the above technical solution, and by setting two drive rods that are perpendicular to the positioning seat, when the two sets of measuring rods shift, the drive rods can push the positioning component to the center position of the bottom of the two sets of measuring rods, that is, the predetermined drilling position, thus achieving precise positioning of the positioning component. Furthermore, the two drive rods can simultaneously squeeze the drilling component, firmly fixing the drilling component to the positioning component. The two drive rods can also fix the two measuring rods, preventing them from shifting when the drilling component is working, thereby improving the stability of the drilling component during drilling.

[0021] Preferably, the bottom of the measuring rod is provided with a rotating shaft; a roller is sleeved on the rotating shaft; the roller abuts against the top wall of the workpiece; the driving rod is a telescopic rod; the bottom of the telescopic rod is hinged to the rotating shaft.

[0022] Preferably, the connecting seat has a positioning cavity; the movable end is located within the positioning cavity; the rotating shaft has a positioning hole; a fixing component is provided within the positioning cavity; the fixing component includes:

[0023] A conical fixing block is slidably disposed within the positioning cavity and has an elastic degree of freedom to move along the axial direction of the rotating shaft; the tip of the conical fixing block is located within the positioning hole.

[0024] Multiple sliders are slidably disposed at the movable end and have elastic degrees of freedom to move radially along the axis of rotation; the multiple sliders are located within the positioning cavity and are evenly distributed circumferentially along the conical fixing block;

[0025] A connecting rod is slidably mounted vertically on the positioning seat; the connecting rod is arranged horizontally and is perpendicular to the rotating shaft.

[0026] One end of the pull rope is connected to the conical fixing block, and the other end is connected to the connecting rod;

[0027] The pull rod has one end slidably mounted on the connecting rod, and the other end is connected to the movable part of the punching assembly.

[0028] By adopting the above technical solution, a positioning cavity is opened in the connecting seat, and the movable end of the rotating shaft is set in the positioning cavity. Multiple sliders are installed at the movable end of the rotating shaft, so that after the sliders move outward, they abut against the inner wall of the positioning cavity, preventing the rotating shaft from rotating. This avoids the rotating shaft rotating during the operation of the drilling assembly, thus affecting the drilling accuracy and improving the stability of the drilling process. A conical fixing block is set in the positioning cavity. The tip of the conical fixing block passes through the gap between the multiple sliders and enters the positioning hole. After the conical fixing block moves into the positioning hole, it can slide the sliders towards the inner wall of the positioning cavity. A pull rope connects the conical fixing block and the connecting rod, and a pull rod connects the connecting rod to the drilling assembly. When the movable part of the drilling assembly moves downward, it pulls the conical fixing block, causing the sliders to abut against the side wall of the positioning cavity, fixing the rotating shaft in the connecting seat. This allows the drilling assembly to automatically fix the rotating shaft during operation, improving the drilling accuracy and the stability of the equipment.

[0029] Preferably, the inner and outer walls of the slider are both arc surfaces; the outer wall of the slider fits into the inner wall of the positioning cavity.

[0030] By adopting the above technical solution, the inner and outer walls of the slider are both made into arc surfaces, which enables the slider to stably press against the side wall of the positioning cavity, improving the stability of drilling; it also prevents the slider from scratching the conical fixing block, thus improving the service life of the conical fixing block.

[0031] Preferably, the punching assembly includes:

[0032] A punching seat is slidably mounted on the positioning seat; the two side walls of the punching seat abut against the drive rod respectively;

[0033] A cylinder is mounted on the bottom wall of the punching base;

[0034] The drilling machine is connected to the power output end of the cylinder.

[0035] Preferably, a turntable is rotatably mounted on the machine base; a drive shaft is eccentrically mounted on the top wall of the turntable; a drive hole is formed at the center of the bottom wall of the worktable; the drive shaft is positioned to mate with the drive hole and is located within the drive hole.

[0036] By adopting the above technical solutions, when the required hole is larger than the diameter of the drill bit, it is usually necessary to replace the drill bit. By incorporating a turntable on the machine base and setting the drive shaft eccentrically, the worktable moves during drilling, eliminating the need to replace the drill bit and improving the drill bit's adaptability. The drilling method of expanding the hole externally can effectively reduce the risk of hole wall breakage and improve the quality of the hole.

[0037] Preferably, the drilling machine is provided with a sealing ring; the sealing ring is sleeved on the drill bit of the drilling machine; the bottom wall of the sealing ring fits against the top wall of the workpiece; a through hole is vertically opened along the inner edge of the drill bit; a vent hole is opened on the outer wall of the drilling machine; the vent hole communicates with the through hole; a dust collection box is provided on the machine base; a negative pressure pump is provided in the dust collection box; the negative pressure pump is connected to a pipe; the pipe passes through the sealing ring.

[0038] By adopting the above technical solution, a sealing ring is installed on the drilling machine to seal the hole during drilling and prevent dust from splashing. A negative pressure pump is used to draw negative pressure into the hole, and a through hole is opened on the drill bit and a vent is opened on the outer wall of the drilling machine to connect the sealed hole with the outside. A stable ventilation line is formed in the sealed hole, which allows the negative pressure pump to draw the dust generated during drilling into the dust collection box. This prevents the dust generated during drilling from rubbing against the side wall of the hole and improves the drilling accuracy.

[0039] Preferably, the turntable has a first groove formed radially; the drive shaft is slidably disposed within the first groove; the drilling device for producing graphite molds further includes an adjustment component; the adjustment component includes:

[0040] A rack is mounted on the machine base;

[0041] A screw is rotatably mounted on the turntable; one end of the screw is threadedly connected to the worktable; the other end is provided with a first gear.

[0042] The second gear is rotatably mounted on the turntable; the first gear meshes with the second gear; the second gear meshes with or disengages from the rack.

[0043] By adopting the above technical solution, a second gear is rotatably installed on the side wall of the turntable, a screw is rotatably installed on the top of the turntable, and a rack is installed on the machine base. When the turntable rotates one revolution, the second gear meshes with the rack, driving the first gear and then the screw to rotate, causing the worktable and drive shaft to move radially along the turntable, changing the offset position of the worktable on the turntable, so that when the drilling machine drills a hole, the worktable moves automatically and gradually enlarges the hole.

[0044] Preferably, the support is disposed on the top of the base via a drive assembly; the drive assembly includes:

[0045] The guide rail is slidably mounted on the machine base; threaded holes are respectively opened on both sides of the guide rail; the bearing seat is slidably mounted on the guide rail;

[0046] Two lead screws rotate on the machine base respectively; the two lead screws pass through the two threaded holes respectively and are engaged with the threaded holes.

[0047] In summary, this application includes at least one of the following beneficial technical effects:

[0048] 1. By adopting the above technical solution, two sets of measuring rods are set on the positioning component. The bottom end of the measuring rods is abutted against the upper surface of the workpiece by moving the connecting seat downward. When encountering the arc surface, the two sets of measuring rods are offset vertically. The positioning component drives the drilling component to deflect, so that the drilling component is perpendicular to the tangent direction of the arc surface, realizing the automatic positioning of the drilling component in the tangent direction of the arc surface. The drilling component slides on the positioning component, so that the drilling component moves to the drilling position. This makes the drilling component no longer suitable for drilling on a single flat surface, but can meet the requirements of drilling on workpieces with both flat and arc surfaces, and the drilling component can adapt to various styles of workpieces. It avoids manual adjustment of arc surface workpieces, improves work efficiency, and saves manpower.

[0049] 2. By adopting the above technical solution, a positioning cavity is opened in the connecting seat, and the movable end of the rotating shaft is set in the positioning cavity. Multiple sliders are set at the movable end of the rotating shaft, so that after the sliders move outward, they can abut against the inner wall of the positioning cavity, preventing the rotating shaft from rotating. This avoids the rotating shaft rotating and affecting the drilling accuracy when the drilling assembly is working, thus improving the stability of drilling. By setting a conical fixing block in the positioning cavity, the tip of the conical fixing block passes through the gap between the multiple sliders and enters the positioning hole. After the conical fixing block moves into the positioning hole, it can slide the slider towards the inner wall of the positioning cavity. The conical fixing block and the connecting rod are connected by a pull rope, and the connecting rod is connected to the drilling assembly by a pull rod. After the movable part of the drilling assembly moves downward, it can pull the conical fixing block and make the slider abut against the side wall of the positioning cavity, fixing the rotating shaft in the connecting seat. This allows the drilling assembly to automatically fix the rotating shaft when working, improving the drilling accuracy and the stability of the equipment. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of a drilling device used in the production of graphite molds.

[0051] Figure 2 This is an isometric view of the positioning component in the embodiment.

[0052] Figure 3 This is a schematic diagram of the positioning component in the embodiment.

[0053] Figure 4 This is a structural schematic diagram of the fixed component in the embodiment.

[0054] Figure 5 This is a schematic diagram of the punching component in the embodiment.

[0055] Figure 6 This is a schematic diagram of the connection between the turntable and the worktable in the embodiment.

[0056] Explanation of reference numerals in the attached figures:

[0057] 1. Base; 11. Dust collection box; 111. Negative pressure pump; 112. Pipeline; 12. Turntable; 121. Drive shaft; 122. First slide groove;

[0058] 2. Worktable; 21. Drive hole;

[0059] 3. Bearing seat; 31. Second slide groove; 32. First elastic element;

[0060] 4. Connecting seat; 41. Positioning cavity;

[0061] 5. Positioning assembly; 51. Measuring rod; 511. Rotating shaft; 512. Roller; 52. Rotating shaft; 521. Positioning hole; 53. Positioning seat; 54. Drive rod;

[0062] 6. Drilling assembly; 61. Drilling base; 62. Cylinder; 63. Drilling machine; 64. Drill bit; 641. Through hole; 642. Sealing ring; 543. Vent hole;

[0063] 7. Fixing component; 71. Conical fixing block; 72. Retaining ring; 73. Second spring; 74. Slider; 75. Connecting rod; 76. Pull rope; 77. Pull rod;

[0064] 8. Adjustment assembly; 81. Rack; 82. Screw; 83. First gear; 84. Second gear;

[0065] 9. Drive assembly; 91. Guide rail; 92. Lead screw;

[0066] 10. Workpiece. Detailed Implementation

[0067] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0068] This application discloses a drilling device for producing graphite molds. (Refer to...) Figure 1 The drilling device for producing graphite molds includes a base 1, a worktable 2, a support 3, a connecting seat 4, a positioning component 5, and a drilling component 6. The worktable 2 is mounted on the base 1; the support 3 is slidably mounted on the top of the base 1 and located above the worktable 2; a second slide groove 31 is vertically opened on the support 3, and the connecting seat 4 is slidably mounted in the second slide groove 31; the positioning component 5 is rotatably mounted on the connecting seat 4; a measuring rod 51 is hinged to the bottom of the front and rear sides of the positioning component 5, and the bottom end of the measuring rod 51 abuts against the top wall of the workpiece 10; a first elastic element 32 is provided between the top walls of the connecting seat 4 and the second slide groove 31, and the first elastic element 32 can push the connecting seat 4 to move downward and make the two sets of measuring rods 51 abut against the workpiece 10; the drilling component 6 is located in the middle of the positioning component 5 and between the two sets of measuring rods. When the two sets of measuring rods 51 deviate after passing through the arc surface, they can twist the positioning component 5 to make the positioning component 5 perpendicular to the tangent of the arc surface.

[0069] It should be noted that the direction of movement of the drilling component 6 when it sequentially drills holes in the workpiece 10 is defined as the front-back direction.

[0070] Reference Figure 2 and Figure 3The positioning assembly 5 includes a rotating shaft 52, a positioning seat 53, and two drive rods 54. The rotating shaft 52 has a fixed end and a movable end; the movable end of the rotating shaft 52 is rotatably mounted on the connecting seat 4, and the fixed end of the rotating shaft 52 is fixed to the middle of the positioning seat 53; the positioning seat 53 is rod-shaped, with both ends extending in the front-rear direction towards the drilling assembly 6; the drilling assembly 6 is slidably mounted on the positioning seat 53 in the front-rear direction; the tops of the two sets of measuring rods 51 are respectively hinged to the front and rear sides of the positioning seat 53; to facilitate the movement of the measuring rods 51 on the workpiece 10 and to prevent the bottom of the measuring rods 51 from damaging the surface of the workpiece 10, a rotating shaft 511 is provided at the bottom of the measuring rods 51. A roller 512 is fitted onto the rotating shaft 511; the bottom of the drive rod 54 is hinged to the rotating shaft 511; the top of the drive rod 54 is slidably mounted on the positioning seat 53, and the top of the drive rod 54 has an extension that extends toward the positioning seat 53 and abuts against the positioning seat 53; the drive rod 54 is perpendicular to the positioning seat 53; the drive rod 54 is a telescopic rod, and when the positioning seat 53 rotates, since the drive rod 54 and the positioning seat 53 are perpendicular, the bottom position of the drive rod 54 remains unchanged, allowing the top of the drive rod 54 to slide on the positioning seat 53.

[0071] Reference Figure 4 The fixing assembly 7 includes a conical fixing block 71, multiple sliders 74, a connecting rod 75, a pull rope 76, and a pull rod 77. A positioning cavity 41 is provided within the connecting seat 4, and the conical fixing block 71 is slidably disposed within the positioning cavity 41 along the axial direction of the rotating shaft 52. A positioning hole 521 is provided on the rotating shaft 52 along its axial direction. The tip of the conical fixing block 71 extends into the positioning hole 521. The movable part of the rotating shaft 52 is located at the positioning cavity 41, but the rotating shaft 52 does not extend into the positioning cavity 41. A limiting groove is provided on the side wall of the positioning hole 521, and the limiting groove is circumferentially arranged in the positioning hole 521. A retaining ring 72 is provided on the conical fixing block 71 to prevent... The circumferential sidewall of ring 72 fits against the sidewall of the limiting groove; a second spring 73 is provided in the positioning hole 521, one end of the second spring 73 is connected to the retaining ring 72, and the other end is connected to the sidewall of the limiting groove; the second spring 73 can push the conical fixing block 71 to move out of the positioning hole 521; multiple sliders 74 are slidably arranged on the movable part of the rotating shaft 52; the multiple sliders 74 are distributed around the outer periphery of the conical fixing block 71 along the circumference of the rotating shaft 52; when the conical fixing block 71 moves into the positioning hole 521, it can squeeze the multiple sliders 74 to abut against the sidewall of the positioning cavity 41; the inner and outer sidewalls of the sliders 74 are both arc surfaces.

[0072] It should be noted that multiple sliders 74 surround the outer periphery of the conical fixing block 71, and are pieced together to form a ring. The inner wall of the ring is defined as the inner wall of the slider 74, and the outer wall of the ring is defined as the outer wall of the slider 74.

[0073] Reference Figure 5The drilling assembly 6 includes a drilling seat 61, a cylinder 62, and a drilling machine 63. The drilling seat 61 is slidably mounted on the positioning seat 53 in the front-to-back direction; the two side walls of the drilling seat 61 abut against the drive rod 54 respectively; the cylinder 62 is mounted on the bottom wall of the drilling seat 61; the drilling machine 63 is connected to the power output end of the cylinder 62. The drilling machine 63 is provided with a sealing ring 642; the sealing ring 642 is sleeved on the drill bit 64 of the drilling machine 63; the bottom wall of the sealing ring 642 fits against the top wall of the workpiece 10; when the drilling machine 63 drills, the sealing ring 642 can cover the hole being drilled, so that a sealed space is formed inside the hole; a through hole 641 is opened vertically inside the drill bit 64; a vent hole 543 is opened on the outer wall of the drilling machine 63; the vent hole 543 communicates with the through hole 641, so that the sealing hole of the sealing ring 642 is connected to the outside. The drilling machine 63 is connected to a dust collection box 11 on its outer wall. Since the amount of dust generated during drilling is relatively small, the dust collection box 11 can be installed on the drilling machine 63. The dust collection box 11 can also be installed on the machine base 1. The position of the dust collection box 11 can be set according to the actual environment. The dust collection box 11 is equipped with a negative pressure pump 111. The negative pressure pump 111 is connected to a pipe 112. The pipe 112 passes through the sealing ring 642 and extends into the sealed hole to draw the dust generated during drilling into the dust collection box 11.

[0074] Reference Figure 6 A turntable 12 is rotatably mounted on the machine base 1; a drive shaft 121 is eccentrically mounted on the top wall of the turntable 12; a drive hole 21 is opened at the center of the bottom wall of the worktable 2; the drive shaft 121 is fitted into the drive hole 21 and located within the drive hole 21; multiple detachable drive shafts 121 are mounted on the turntable 12; the multiple drive shafts 121 are evenly arranged radially along the turntable 12; multiple baffles are mounted on the top wall of the worktable 2, distributed around the workpiece 10 and respectively attached to the side walls of the workpiece 10. A drive motor is mounted on the machine base 1, and the power output end of the drive motor is coaxially connected to the turntable 12; to avoid confusion in the drawings, the drive motor is not shown in the drawings.

[0075] Furthermore, the adjusting assembly 8 includes a rack 81, a screw 82, a first gear 83, and a second gear 84; a first groove 122 is radially formed on the turntable 12; a drive shaft 121 is slidably disposed within the first groove 122; the rack 81 is disposed on the base 1; the screw 82 is rotatably disposed on the turntable 12; one end of the screw 82 is threadedly connected to the worktable 2; the other end is provided with the first gear 83; the second gear 84 is rotatably disposed on the turntable 12; when the turntable 12 rotates one revolution, the second gear 84 meshes with the rack 81, and the second gear 84 drives the first gear 83 to rotate; thereby driving the screw 82 to rotate, and driving the worktable 2 and the drive shaft 121 to move radially along the turntable 12; thus changing the eccentricity of the drive shaft 121.

[0076] Reference Figure 1The guide rail 91 is slidably mounted on the base 1; threaded holes are provided on both sides of the guide rail 91; two lead screws 92 rotate on the frame respectively; the two lead screws 92 pass through the two threaded holes and are engaged with the threaded holes; two motors are provided on the base 1, and the power output shafts of the two motors are coaxially connected to the two lead screws 92 respectively to drive the lead screws 92 to rotate; the bearing seat 3 is slidably mounted on the guide rail 91, and a cylinder 62 is provided on the guide rail 91, with the power output end of the cylinder 62 connected to the bearing seat 3; after the lead screw 92 rotates, it drives the guide rail 91 to slide in the front-back direction; the cylinder 62 pushes the bearing seat 3 to slide in the left-right direction.

[0077] The working principle of the punching device for producing graphite molds in this application is as follows:

[0078] When the drilling assembly 6 passes through the plane of the workpiece 10, the two sets of measuring rods 51 do not move, and the drilling assembly drills normally. When the drilling assembly 6 passes through the arc surface of the workpiece 10, the two measuring rods 51 are at different heights, the rotating shaft 52 rotates, and the positioning seat 53 shifts, making the drilling assembly 6 perpendicular to the tangent of the arc surface. At the same time, the driving rod 54 rotates and presses the positioning seat 53 to move towards the predetermined hole. The cylinder 62 moves down, moving the drilling machine 63 towards the workpiece 10. When the drilling machine 63 moves down, it drives the pull rod 77 to move down and pulls the connecting rod 75, so that the pull rope 76 pulls the conical fixing block 71 and pulls the conical fixing block 71 into the positioning hole 521. The conical fixing block 71 presses against multiple sliders 74, so that the sliders 74 abut against the side wall of the positioning cavity 41 to prevent the rotating shaft 52 from rotating.

[0079] When the drilling machine 63 is drilling, the sealing plate seals the hole being drilled, and the negative pressure pump 111 sucks the dust in the hole into the dust collection box 11; the through hole 641 and the vent hole 543 connect the sealed hole to the outside, so that the outside air can be replenished into the sealed hole, and the negative pressure pump 111 can work continuously.

[0080] When the diameter of the hole is larger than the diameter of the drill bit 64, the turntable 12 rotates, which drives the worktable 2 to rotate eccentrically through the drive shaft 121, causing the drill bit 64 to expand the hole outward.

[0081] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A punching device for producing graphite molds, characterized in that, include: Base (1); A workbench (2) is mounted on the machine base (1); The support base (3) is slidably disposed on the top of the machine base (1) and located above the worktable (2); The connecting seat (4) is slidably disposed on the bearing seat (3) and has an elastic degree of freedom to move vertically; The positioning component (5) is rotatably mounted on the connecting seat (4); the bottom of the positioning component (5) is hinged with two sets of measuring rods (51), and the bottom of the two sets of measuring rods (51) abuts against the top wall of the workpiece (10); A drilling assembly (6) is slidably disposed on the positioning assembly (5) and located between the two sets of measuring rods (51); the drilling assembly (6) has a degree of freedom extending vertically; it is used to drill holes in the top wall of the workpiece (10).

2. The drilling device for producing graphite molds according to claim 1, characterized in that, The positioning component (5) includes: A rotating shaft (52) has a fixed end and a movable end; the movable end is rotatably mounted on the connecting seat (4); The positioning seat (53) is connected to the fixed end in the middle; the drilling assembly (6) is slidably disposed on the positioning seat (53); the tops of the two sets of measuring rods (51) are respectively hinged to both sides of the positioning seat (53); Two drive rods (54) are slidably mounted on the positioning seat (53) at one end and respectively abut against the two sides of the drilling assembly (6); the bottom of the two drive rods (54) is respectively hinged to the bottom of the two sets of measuring rods (51); the drive rods (54) are perpendicular to the positioning seat (53).

3. The drilling device for producing graphite molds according to claim 2, characterized in that: The bottom of the measuring rod (51) is provided with a rotating shaft (511); a roller (512) is sleeved on the rotating shaft (511); the roller (512) abuts against the top wall of the workpiece (10); the driving rod (54) is a telescopic rod; the bottom of the telescopic rod is hinged to the rotating shaft (511).

4. The punching device for producing graphite molds according to claim 2, characterized in that, The connecting seat (4) has a positioning cavity (41); the movable end is located in the positioning cavity (41); the rotating shaft (52) has a positioning hole (521); the positioning cavity (41) has a fixing component (7); the fixing component (7) includes: A conical fixing block (71) is slidably disposed in the positioning cavity (41) and has an elastic degree of freedom to move axially along the rotating shaft (52); the tip of the conical fixing block (71) is located in the positioning hole (521); Multiple sliders (74) are slidably disposed at the movable end and have elastic degrees of freedom to move radially along the rotating shaft (52); the multiple sliders (74) are located in the positioning cavity (41) and are evenly distributed circumferentially along the conical fixing block (71); A connecting rod (75) is slidably mounted on the positioning seat (53) in a vertical direction; the connecting rod (75) is arranged horizontally and is perpendicular to the rotating shaft (52); A pull rope (76) is connected at one end to the conical fixing block (71) and at the other end to the connecting rod (75); The pull rod (77) has one end slidably mounted on the connecting rod (75) and the other end connected to the movable part of the punching assembly (6).

5. The drilling device for producing graphite molds according to claim 4, characterized in that: The inner and outer walls of the slider (74) are both arc surfaces; the outer wall of the slider (74) fits against the inner wall of the positioning cavity (41).

6. The drilling device for producing graphite molds according to claim 2, characterized in that, The punching assembly (6) includes: A punching seat (61) is slidably disposed on the positioning seat (53); the two side walls of the punching seat (61) respectively abut against the driving rod (54); Cylinder (62) is disposed on the bottom wall of the punching seat (61); The drilling machine (63) is connected to the power output end of the cylinder (62).

7. The drilling device for producing graphite molds according to claim 6, characterized in that: The drilling machine (63) is provided with a sealing ring (642); the sealing ring (642) is sleeved on the drill bit (64) of the drilling machine (63); the bottom wall of the sealing ring (642) is in contact with the top wall of the workpiece (10); a through hole (641) is vertically opened in the inner side of the drill bit (64); a vent hole (543) is opened on the outer wall of the drilling machine (63); the vent hole (543) is connected to the through hole (641); a dust collection box (11) is provided on the machine base (1); a negative pressure pump (111) is provided in the dust collection box (11); the negative pressure pump (111) is connected to a pipe (112); the pipe (112) passes through the sealing ring (642).

8. The drilling device for producing graphite molds according to claim 1, characterized in that: The base (1) is rotatably provided with a turntable (12); the top wall of the turntable (12) is eccentrically provided with a drive shaft (121); the center of the bottom wall of the worktable (2) is provided with a drive hole (21); the drive shaft (121) is matched with the drive hole (21) and is located inside the drive hole (21).

9. The drilling device for producing graphite molds according to claim 8, characterized in that: The turntable (12) has a first groove (122) radially formed on it; the drive shaft (121) is slidably disposed in the first groove (122); the drilling device for producing graphite molds further includes an adjustment component (8); the adjustment component (8) includes: A rack (81) is mounted on the base (1); A screw (82) is rotatably mounted on the turntable (12); one end of the screw (82) is threadedly connected to the worktable (2); the other end is provided with a first gear (83); The second gear (84) is rotatably mounted on the turntable (12); the first gear (83) meshes with the second gear (84); the second gear (84) meshes with or disengages from the rack (81).

10. The punching device for producing graphite molds according to claim 1, characterized in that, The support base (3) is disposed on the top of the base (1) via a drive assembly (9); the drive assembly (9) includes: The guide rail (91) is slidably mounted on the base (1); threaded holes are provided on both sides of the guide rail (91); the bearing seat (3) is slidably mounted on the guide rail (91); Two lead screws (92) rotate on the machine base (1) respectively; the two lead screws (92) pass through the two threaded holes respectively and are engaged with the threaded holes.

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