Punching device for processing fireproof door

Abstract

The application is suitable for the technical field of metal processing, and provides a punching device for fireproof door processing, which comprises a machine tool, a lifting part for clamping a door leaf panel is symmetrically arranged on the machine tool and slides, a stamping part is fixed at the output end of an electric cylinder, the lifting part comprises a sleeve, a guide part is fixed to the inner bottom surface of the sleeve, a rotating part is rotatably arranged between the guide part and the inner wall of the sleeve, a sliding part is slidably arranged through the surface of the rotating part, a plurality of sliding frames are uniformly arranged on the sliding part and slide, a planar polishing part matched with the guide part is arranged on the sliding frame and slides, a connecting frame matched with the surface polishing part is arranged and slides, an inner wall polishing part is slidably arranged through the side surface of the connecting frame, and a linkage part is arranged between the rotating part below and the corresponding sliding part. The linkage cooperation between the parts drives the planar polishing part and the inner wall polishing part to rotate and polish the burrs on the surface, the bottom surface and the inner wall of the observation port, so that the working procedure is optimized and the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, and more specifically, to a punching device for processing fire doors. Background Technology

[0002] Steel fire doors refer to doors with a certain fire resistance performance, consisting of a door frame, door leaf skeleton and door leaf panel made of steel materials, and if the door leaf is filled with materials, it is filled with fireproof and heat-insulating materials that are non-toxic and harmless to the human body, and equipped with fireproof hardware accessories.

[0003] After the fire door panel is manufactured, an observation opening needs to be punched on its surface. After the observation opening is punched, burrs will appear on the surface, inner wall and lower side of the observation opening. This means that the door panel needs to be further processed after punching, and further polished by a milling machine. This increases the processing steps of the door panel and reduces the processing efficiency. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a punching device for fire door processing. After the punching part completes the punching, it is controlled to continue moving downward, thereby squeezing the sliding part to make it descend. Through the linkage between various components, the flat grinding part and the inner wall grinding part are driven to rotate and grind the burrs on the surface, bottom surface and inner wall of the observation port, thereby optimizing the process and improving work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A punching device for processing fire doors includes a machine tool; the machine tool is symmetrically and slidably equipped with lifting parts for clamping door panels; an electric cylinder is installed on the top of the machine tool; a punching part is fixed to the output end of the electric cylinder; the lifting part includes a sleeve; a guide member is fixed to the bottom surface of the sleeve; a rotating part is rotatably arranged between the guide member and the inner wall of the sleeve; a sliding part is slidably arranged through the surface of the rotating part; a plurality of sliding frames are evenly slidably arranged on the sliding part; a flat grinding part adapted to the guide member is slidably arranged on the sliding frame; the flat grinding part includes a surface grinding part located above the door panel and a bottom grinding part located below the door panel; both the surface grinding part and the bottom grinding part include a sliding plate; a grinding plate is fixed to the bottom surface of the sliding plate; a matching connecting frame is slidably arranged through the surface of the sliding plate on the surface grinding part; an inner wall grinding part is slidably arranged through the side of the connecting frame; a linkage part is provided between the rotating part and the corresponding sliding part located below.

[0007] The invention is further configured such that: the machine tool includes a base; conveying frames are symmetrically fixed on the surface of the base; a support frame is fixed between the two conveying frames; a collection box is placed on the surface of the base; a plurality of conveying rollers are uniformly rotatably arranged on the side of the conveying frames; a controller is fixedly installed at the end of the conveying frames; and clearance openings are provided on the surface and bottom of the support frame.

[0008] The invention is further configured as follows: a lead screw is symmetrically and rotatably arranged through the inner walls of the support frame; slide rods are symmetrically fixed on both sides of the corresponding lead screw on the bottom surface of the support frame; a sprocket is fixed at the bottom end of the lead screw; a chain is provided for meshing and transmission between the two sprockets; a servo motor electrically connected to the output end of the controller is fixedly installed on the bottom surface of the support frame; the output end of the servo motor is fixedly connected to the end of the lead screw; a lifting plate is symmetrically fixed on the outer wall of the sleeve; the surface of the lifting plate is provided with a screw hole that rotates with the thread of the corresponding lead screw, and symmetrical sliding holes that slide with the slide rods are provided on both sides of the screw hole on its surface.

[0009] The invention is further configured such that: the rotating part includes an annular plate rotatably disposed between the guide member and the sleeve; an annular rail is fixed to the outer wall of the annular plate; an annular groove that rotatably engages with the annular rail is formed on the inner wall of the sleeve; a fixing ring is fixed to the top of the annular plate; an upper retaining ring is fixed to the surface of the fixing ring; a gear ring is fixed to the outer wall of the upper retaining ring; a drive motor electrically connected to the output end of the controller is fixedly mounted on the surface of the lifting plate; and a gear that meshes with the gear ring is fixed to the output end of the drive motor.

[0010] The invention is further configured such that: a plurality of guide grooves are uniformly formed on the surface of the fixing ring; the sliding part includes a connecting ring; a lower stop ring is fixed to the bottom surface of the connecting ring; a plurality of square tubes that slide in cooperation with the corresponding guide grooves are uniformly fixed to the bottom surface of the connecting ring; a first support spring sleeved on the corresponding square tube is fixedly connected between the connecting ring and the fixing ring; the sliding frame includes a slider slidably disposed inside the square tube; a connecting rod is fixed to the bottom surface of the slider; a U-shaped seat with a sealed end is fixed to the bottom end of the connecting rod; and a return spring is fixedly connected between the slider and the connecting ring.

[0011] The linkage includes an L-shaped plate fixedly installed at the top of the corresponding fixed ring and an ear plate fixedly installed on the inner wall of the corresponding lower retaining ring; a guide rod is fixed to the end of the L-shaped plate; a stop plate that slides and cooperates with the guide rod is slidably provided on the side of the L-shaped plate; a first guide wheel is rotatably provided on the side of the L-shaped plate; a second guide wheel is rotatably provided on the inner wall of the annular plate; a connecting rope that passes through the first guide wheel and the second guide wheel is fixedly connected between the ear plate and the stop plate.

[0012] The invention is further configured such that: symmetrical grooves are provided on both sides of the inner wall of the U-shaped seat; slide rails that slide and cooperate with the corresponding grooves are fixed on both opposite sides of the slide plate; an extension rod is fixed at the end of the slide plate; a guide hole that slides and cooperates with the extension rod is provided at the sealing end of the U-shaped seat; and a tension spring sleeved on the extension rod is fixedly connected between the sealing end of the U-shaped seat and the slide plate.

[0013] The present invention is further configured such that: a guide ball is fixed to the end of the extension rod; the guide member includes a first guide ring fixedly installed on the bottom surface of the sleeve; a conical guide ring is fixed to the surface of the first guide ring; and a second guide ring is fixed to the surface of the conical guide ring.

[0014] The invention is further configured such that: a lifting groove is formed on the surface of the sliding plate on the surface polishing component, and a clearance cavity communicating with the lifting groove is formed inside the sliding plate; the connecting frame includes a lifting column that slides with the lifting groove; a clearance groove is formed on the surface of the U-shaped seat; a baffle is fixed to the top of the lifting column; a second support spring sleeved on the lifting column is fixedly connected between the baffle and the sliding plate; a ball bearing is provided at the bottom of the lifting column; a limiting hole is formed on the side of the lifting column; the inner wall polishing part includes an outer sleeve that slides with the limiting hole; an inner sleeve is slidably arranged inside the outer sleeve; a polishing roller is fixed to the end of the inner sleeve; the polishing roller can slide inside the clearance cavity and the clearance groove; a first spring is fixedly connected between the inner sleeve and the outer sleeve; a second spring sleeved on the outer sleeve is fixedly connected between the end of the outer sleeve and the lifting column.

[0015] The advantages of this invention are: a hemispherical head is fixed at the end of the outer sleeve; the stamping part includes a first guide post; the top of the first guide post is fixedly connected to the output end of the electric cylinder through a connecting flange; pressure plates are symmetrically fixed on the periphery of the first guide post; a tapered guide post is fixed at the bottom of the first guide post; a second guide post is fixed at the bottom of the tapered guide post; and a stamping head is fixed at the bottom of the second guide post.

[0016] This invention uses conveying rollers to transport the door panel to the area below the stamping section, and controls two sets of lifting sections to slide synchronously closer to clamp the door panel, thereby improving the stability of subsequent stamping and polishing, and thus improving the quality of stamping and polishing.

[0017] After the stamping part completes the stamping, the present invention controls it to continue moving downward, thereby squeezing the sliding part to make it descend. During this process, the sliding frame and the flat grinding part slide downward together. With the help of the guide and the linkage, the grinding plates of each group approach each other synchronously during the descent until the grinding plates press against the observation opening of the door panel. The stamping part continues to descend, and the first guide post squeezes the inner wall grinding part, causing the grinding roller to press against the inner wall of the observation opening. The rotating part is controlled to rotate, thereby driving the flat grinding part and the inner wall grinding part to rotate and grind the burrs on the surface, bottom surface and inner wall of the observation opening. This optimizes the process and improves work efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a punching device for processing fire doors according to the present invention.

[0019] Figure 2 This is a schematic diagram of the machine tool according to the present invention.

[0020] Figure 3 This is a schematic diagram of the lifting part of the present invention.

[0021] Figure 4 This is a schematic diagram of the rotating part of the present invention.

[0022] Figure 5 This is a schematic diagram of the sliding part of the present invention.

[0023] Figure 6 This is a schematic diagram of the sliding frame of the present invention.

[0024] Figure 7 This is a schematic diagram of the sliding frame of the present invention from another angle.

[0025] Figure 8 This is a schematic diagram of the planar grinding part of the present invention.

[0026] Figure 9 This is a schematic diagram of the surface polishing component of the present invention.

[0027] Figure 10 This is a schematic diagram of the stamping part of the present invention.

[0028] Figure 11 This is a schematic diagram of the connecting frame of the present invention.

[0029] Figure 12 This is a schematic diagram of the inner wall grinding part of the present invention.

[0030] Figure 13 This is a schematic diagram of the stamping process of the present invention.

[0031] Figure 14 For the present invention Figure 13Enlarged view of region A.

[0032] Figure 15 This is a schematic diagram of the polishing process of the present invention.

[0033] Figure 16 For the present invention Figure 15 Enlarged view of region B.

[0034] Figure 17 For the present invention Figure 15 Enlarged view of region C.

[0035] Figure 18 For the present invention Figure 13 Enlarged view of region D.

[0036] Figure 19 For the present invention Figure 15 Enlarged view of region E.

[0037] In the diagram: 1. Machine tool; 2. Door panel; 3. Lifting unit; 4. Stamping unit; 5. Sleeve; 6. Guide component; 7. Rotating unit; 8. Sliding unit; 9. Sliding frame; 10. Surface grinding unit; 11. Surface grinding component; 12. Bottom surface grinding component; 13. Slide plate; 14. Grinding plate; 15. Connecting frame; 16. Inner wall grinding unit; 17. Base; 18. Conveyor frame; 19. Support frame; 20. Conveyor roller; 21. Controller; 22. 23. Clearance opening; 24. Lead screw; 25. Slide bar; 26. Sprocket; 27. Chain; 28. Servo motor; 29. ​​Lifting plate; 30. Screw hole; 31. Sliding hole; 32. Annular plate; 33. Annular rail; 34. Annular groove; 35. Fixing ring; 36. Upper retaining ring; 37. Gear ring; 38. Drive motor; 39. Gear; 40. Guide groove; 41. Connecting ring; 42. Lower retaining ring; 43. Square tube; 44. First support spring; 45. Slider; 46. Connecting rod; 47. U-shaped seat; 48. Return spring; 49. Slide groove; 50. Slide rail; 51. Extension rod; 52. Guide hole; 53. Tension spring; 54. Guide ball; 55. First guide ring; 56. Conical guide ring; 57. Second guide ring; 58. Lifting groove; 59. Clearance cavity; 60. Lifting column; 61. Clearance groove; 62. Baffle; 63. Second support spring; 64. Rolling ball; 65. Limiting hole 65. Outer sleeve; 66. Inner sleeve; 67. Grinding roller; 68. First spring; 69. Second spring; 70. Hemispherical head; 71. First guide post; 72. Pressure plate; 73. Conical guide post; 74. Second guide post; 75. Punching head; 76. Collection box; 77. Linkage part; 78. L-shaped plate; 79. Ear plate; 80. Guide rod; 81. Stop plate; 82. First guide wheel; 83. Second guide wheel; 84. Connecting rope. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0040] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0041] Example 1, please refer to Figure 1-17 The present invention provides the following technical solutions:

[0042] A punching device for processing fire doors specifically includes a machine tool 1; lifting parts 3 for clamping door panel 2 are symmetrically slidably arranged on the machine tool 1; an electric cylinder is installed on the top of the machine tool 1; a punching part 4 is fixed to the output end of the electric cylinder; the lifting part 3 includes a sleeve 5; a guide member 6 is fixed to the inner bottom surface of the sleeve 5; a rotating part 7 is rotatably arranged between the guide member 6 and the inner wall of the sleeve 5; a sliding part 8 is slidably arranged through the surface of the rotating part 7; a plurality of sliding frames 9 are evenly slidably arranged on the sliding part 8; and sliding frames 9 are slidably arranged with elements corresponding to the guide member 6. The adaptable flat surface grinding part 10 includes a surface grinding part 11 located above the door panel 2 and a bottom surface grinding part 12 located below the door panel 2. Both the surface grinding part 11 and the bottom surface grinding part 12 include a sliding plate 13. A grinding plate 14 is fixed to the bottom surface of the sliding plate 13. A matching connecting frame 15 is slidably provided through the surface of the sliding plate 13 on the surface grinding part 11. An inner wall grinding part 16 is slidably provided through the side of the connecting frame 15. A linkage part 77 is provided between the rotating part 7 located below and the corresponding sliding part 8.

[0043] Working principle of this embodiment:

[0044] The two sets of lifting parts 3 are controlled to slide synchronously closer to clamp the door panel 2. After the stamping part 4 completes the stamping, it is controlled to continue to move downward, thereby squeezing the sliding part 8 to make it descend. During this process, the sliding frame 9 and the flat grinding part 10 slide and descend together. With the help of the guide part 6 and the linkage part 77, the grinding plates 14 of each set move closer synchronously during the descent until the grinding plates 14 press against the observation opening of the door panel 2. The stamping part 4 continues to descend. Through the squeezing of the inner wall grinding part 16 by the stamping part 4, the inner wall grinding part 16 is pressed against the inner wall of the observation opening. The rotating part 7 is controlled to rotate, thereby driving the flat grinding part 10 and the inner wall grinding part 16 to rotate and grind the burrs on the surface, bottom surface and inner wall of the observation opening. This optimizes the process and improves work efficiency.

[0045] Example 2, please refer to Figure 1-17 This second embodiment is an improvement on the first embodiment as follows: Specifically, the machine tool 1 includes a base 17; a conveying frame 18 is symmetrically fixed on the surface of the base 17; a support frame 19 is fixed between the two conveying frames 18; a collection box 76 is placed on the surface of the base 17; a number of conveying rollers 20 are evenly rotated on the side of the conveying frame 18; a controller 21 is fixedly installed at the end of the conveying frame 18; and clearance openings 22 are provided on the surface and bottom of the support frame 19.

[0046] By opening the clearance 22 and setting the collection box 76, the waste material after stamping and grinding can fall into the collection box 76 and be collected. By installing a protective cover at the bottom of the support frame 19 to store the chain 26, the waste material is prevented from contaminating the chain 26.

[0047] A lead screw 23 is symmetrically and rotatably installed through the inner walls of the support frame 19; slide rods 24 are symmetrically fixed on both sides of the inner bottom surface of the support frame 19 corresponding to the lead screw 23; a sprocket 25 is fixed at the bottom end of the lead screw 23; a chain 26 is provided for meshing and transmission between the two sprockets 25; a servo motor 27 is fixedly installed on the inner bottom surface of the support frame 19 and electrically connected to the output end of the controller 21; the output end of the servo motor 27 is fixedly connected to the end of the lead screw 23; a lifting plate 28 is symmetrically fixed on the outer wall of the sleeve 5; the surface of the lifting plate 28 is provided with a screw hole 29 that is threaded and rotates with the corresponding lead screw 23, and symmetrical sliding holes 30 are provided on both sides of the screw hole 29 that slide with the slide rod 24.

[0048] By symmetrically setting two sets of lead screws 23 to control the lifting of the lifting part 3, the overall stability of the lifting part 3 is improved.

[0049] The outer sleeve 65 has a hemispherical head 70 fixed at its end; the stamping part 4 includes a first guide post 71; the top of the first guide post 71 is fixedly connected to the output end of the electric cylinder through a connecting flange; pressure plates 72 are symmetrically fixed on the periphery of the first guide post 71; a tapered guide post 73 is fixed at the bottom of the first guide post 71; a second guide post 74 is fixed at the bottom of the tapered guide post 73; and a stamping head 75 is fixed at the bottom of the second guide post 74.

[0050] Working principle of this embodiment two:

[0051] By placing the door panel 2 between the two conveyor frames 18 and on the conveyor roller 20, the door panel 2 is easily conveyed to the designated punching position below the stamping part 4. The servo motor 27 is controlled to drive a set of lead screws 23 to rotate, thereby driving the corresponding sprockets 25 to rotate. Then, the chain 26 drives another set of sprockets 25 to rotate synchronously, so that the other set of lead screws 23 rotates synchronously. This causes the two sets of lifting parts 3 to slide closer synchronously, until the two sets of sleeves 5 clamp and fix the door panel 2, improving the stability of subsequent punching and polishing, and thus improving the quality of punching and polishing the door panel 2.

[0052] Example 3, please refer to Figure 1-17 This third embodiment is an improvement on the second embodiment as follows: Specifically, the rotating part 7 includes an annular plate 31 rotatably disposed between the guide member 6 and the sleeve 5; an annular rail 32 is fixed on the outer wall of the annular plate 31; an annular groove 33 is provided on the inner wall of the sleeve 5 to rotatably cooperate with the annular rail 32; a fixing ring 34 is fixed on the top of the annular plate 31; an upper retaining ring 35 is fixed on the surface of the fixing ring 34; a gear ring 36 is fixed on the outer wall of the upper retaining ring 35; a drive motor 37 electrically connected to the output end of the controller 21 is fixedly installed on the surface of the lifting plate 28; a gear 38 meshing with the gear ring 36 is fixed on the output end of the drive motor 37.

[0053] The fixed ring 34 has a plurality of guide grooves 39 evenly distributed on its surface; the sliding part 8 includes a connecting ring 40; a lower stop ring 41 is fixed on the bottom surface of the connecting ring 40; a plurality of square tubes 42 that slide in cooperation with the corresponding guide grooves 39 are evenly fixed on the bottom surface of the connecting ring 40; a first support spring 43 sleeved on the corresponding square tube 42 is fixedly connected between the connecting ring 40 and the fixed ring 34; the sliding frame 9 includes a slider 44 that is slidably disposed inside the square tube 42; a connecting rod 45 is fixed on the bottom surface of the slider 44; a U-shaped seat 46 with a sealed end is fixed at the bottom end of the connecting rod 45; a return spring 47 is fixedly connected between the slider 44 and the connecting ring 40.

[0054] The linkage 77 includes an L-shaped plate 78 fixedly installed on the top of the corresponding fixed ring 34 and an ear plate 79 fixedly installed on the inner wall of the corresponding lower stop ring 41; a guide rod 80 is fixed at the end of the L-shaped plate 78; a stop plate 81 that slides and cooperates with the guide rod 80 is slidably provided on the side of the L-shaped plate 78; a first guide wheel 82 is rotatably provided on the side of the L-shaped plate 78; a second guide wheel 83 is rotatably provided on the inner wall of the annular plate 31; a connecting rope 84 that passes through the first guide wheel 82 and the second guide wheel 83 is fixedly connected between the ear plate 79 and the stop plate 81.

[0055] The inner wall of the U-shaped seat 46 is symmetrically provided with sliding grooves 48 on both sides; the slide plate 13 is fixed with slide rails 49 on both opposite sides, which slide in cooperation with the corresponding sliding grooves 48; an extension rod 50 is fixed at the end of the slide plate 13; a guide hole 51 is provided at the sealing end of the U-shaped seat 46, which slides in cooperation with the extension rod 50; a tension spring 52 is fixedly connected between the sealing end of the U-shaped seat 46 and the slide plate 13 and is sleeved on the extension rod 50.

[0056] The extension rod 50 has a guide ball 53 fixed at its end; the guide member 6 includes a first guide ring 54 fixedly installed on the bottom surface of the sleeve 5; a conical guide ring 55 is fixed on the surface of the first guide ring 54; and a second guide ring 56 is fixed on the surface of the conical guide ring 55.

[0057] The surface of the slide plate 13 on the surface polishing part 11 is provided with a lifting groove 57, and an avoidance cavity 58 communicating with the lifting groove 57 is provided inside it; the connecting frame 15 includes a lifting column 59 that slides with the lifting groove 57; the surface of the U-shaped seat 46 is provided with an avoidance groove 60; a baffle 61 is fixed to the top of the lifting column 59; a second support spring 62 sleeved on the lifting column 59 is fixedly connected between the baffle 61 and the slide plate 13; a ball bearing 63 is provided at the bottom of the lifting column 59; the lifting column 59 A limiting hole 64 is provided on the side; the inner wall grinding part 16 includes an outer sleeve 65 that slides with the limiting hole 64; an inner sleeve 66 is slidably disposed inside the outer sleeve 65; a grinding roller 67 is fixed at the end of the inner sleeve 66; the grinding roller 67 can slide inside the relief cavity 58 and the relief groove 60; a first spring 68 is fixedly connected between the inner sleeve 66 and the outer sleeve 65; a second spring 69 sleeved on the outer sleeve 65 is fixedly connected between the end of the outer sleeve 65 and the lifting column 59.

[0058] Working principle of this embodiment three:

[0059] In the initial state

[0060] The electric cylinder drives the stamping part 4 away from the upper lifting part 3. The two lifting parts 3 move away from each other, and the corresponding sliding frame 9, together with the corresponding surface grinding part 11 and bottom grinding part 12, moves away from the door panel 2. The first support spring 43 and the return spring 47 are in normal state. The lower stop ring 41 separates from the upper stop ring 35. Under the tension of the tension spring 52, the slide plate 13 drives the guide ball 53 at the end of the extension rod 50 to press against the inner wall of the second guide ring 56. At this time, the hemispherical heads 70 at the ends of the inner wall grinding parts 16 move away from each other and away from the punching hole of the observation port to avoid affecting the normal stamping of the door panel 2 by the stamping head 75.

[0061] stamping process

[0062] The electric cylinder is controlled to move the stamping part 4 downward, thereby driving the stamping head 75 to stamp the clamped door panel 2 to form an observation opening. During this process, the pressure plate 72 descends synchronously, but does not contact the corresponding connecting ring 40.

[0063] Polishing process

[0064] After the stamping is completed, the stamping part 4 continues to move downward, so that the pressure plate 72 continues to descend and press against the corresponding connecting ring 40, thereby driving the corresponding sliding part 8 to slide down, and the corresponding surface polishing part 11 to slide down, until the corresponding polishing plate 14 presses against the surface of the door panel 2. As the stamping part 4 continues to descend, the corresponding first support spring 43 and return spring 47 are continuously compressed. During the descent of the stamping part 4, the stamping head 75 is driven to squeeze the corresponding stop plate 81, so that the stop plate 81 slides down. Through the connecting rope 84, the ear plate 79 is pulled to drive the corresponding lower stop ring 41 to rise synchronously, and the corresponding bottom surface polishing part 12 slides up, until the corresponding polishing plate 14 presses against the bottom surface of the door panel 2. As the stamping part 4 continues to descend, the corresponding first support spring 43 and return spring 47 are continuously compressed. During the above process, the surface polishing part 11 and the corresponding polishing plate 14 on the bottom surface polishing part 12 are respectively pressed against the surface and bottom surface of the door panel 2.

[0065] As the stamping part 4 continues to descend, the hemispherical head 70 slides from the conical guide post 73 onto the first guide post 71. The hemispherical head 70 is squeezed by the conical guide post 73, causing the inner wall grinding part 16 to slide toward the inner wall of the observation port. The grinding roller 67 gradually presses against the inner wall of the observation port. During this process, both the first spring 68 and the second spring 69 are compressed.

[0066] During the descent of the surface polishing component 11, the corresponding guide ball 53 slides from the second guide ring 56 to the first guide ring 54. During this process, the corresponding guide ball 53 is squeezed, causing each group of surface polishing components 11 to move closer to each other until its end covers the observation port.

[0067] During the upward movement of the bottom surface grinding component 12, the corresponding guide ball 53 slides from the second guide ring 56 to the first guide ring 54. During this process, the corresponding guide ball 53 is squeezed, causing each group of bottom surface grinding components 12 to move closer to each other until their ends cover the observation port.

[0068] As the surface polishing component 11 descends, it drives the connecting frame 15 to descend synchronously. When the surface polishing component 11 corresponds one-to-one with the bottom surface polishing component 12, the descending connecting frame 15 causes the rolling ball 63 at its bottom end to press against the polishing plate 14 of the bottom surface polishing component 12. As the connecting frame 15 continues to descend, the rolling ball 63 is blocked by the corresponding polishing plate 14, causing the lifting column 59 to slide upward along the lifting groove 57. The corresponding second support spring 62 is compressed, controlling the start drive motor 37 to drive the gear 38 to rotate, thereby driving the gear ring 36 to rotate, which in turn drives the rotating part 7 located above to rotate synchronously, causing the connecting frame 15 to slide on the surface of the polishing plate 14 on the bottom surface polishing component 12 until it disengages from the corresponding polishing plate 14. In addition to the compression limit of the second support spring 62, the elastic reset action of the second support spring 62 causes the lifting column 59 to slide down. As the upper rotating part 7 continues to rotate, it drives the connecting frame 15 to rotate synchronously to fit against the corresponding bottom surface grinding part 12 below, thereby driving the bottom surface grinding part 12 to rotate synchronously, realizing the shaft rotation of the upper and lower rotating parts 7. When the surface grinding part 11 and the bottom surface grinding part 12 are misaligned, the connecting frame 15 descends between the two adjacent bottom surface grinding parts 12. As the upper rotating part 7 continues to rotate, it drives the connecting frame 15 to rotate synchronously to fit against the corresponding bottom surface grinding part 12 below, thereby driving the bottom surface grinding part 12 to rotate synchronously, realizing the shaft rotation of the upper and lower rotating parts 7.

[0069] The upper and lower sets of rotating parts 7 rotate together, driving the surface grinding parts 11, bottom grinding parts 12 and inner wall grinding parts 16 to rotate and grind the burrs on the surface, bottom and inner wall of the observation port formed by punching, thereby optimizing the process and improving work efficiency.

[0070] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0071] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0072] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0073] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0074] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A punching device for processing fire doors, comprising a machine tool (1); characterized in that: The machine tool (1) is symmetrically and slidably provided with lifting parts (3) for clamping door panel (2); an electric cylinder is installed on the top of the machine tool (1); a stamping part (4) is fixed at the output end of the electric cylinder. The lifting part (3) includes a sleeve (5); a guide (6) is fixed on the inner bottom surface of the sleeve (5); a rotating part (7) is rotatably arranged between the guide (6) and the inner wall of the sleeve (5); a sliding part (8) is slidably arranged through the surface of the rotating part (7); a plurality of sliding frames (9) are evenly slidably arranged on the sliding part (8); a flat grinding part (10) adapted to the guide (6) is slidably arranged on the sliding frame (9). The surface polishing part (10) includes a surface polishing part (11) located above the door panel (2) and a bottom surface polishing part (12) located below the door panel (2); both the surface polishing part (11) and the bottom surface polishing part (12) include a sliding plate (13); a polishing plate (14) is fixed to the bottom surface of the sliding plate (13); a matching connecting frame (15) is slidably provided through the surface of the sliding plate (13) on the surface polishing part (11); an inner wall polishing part (16) is slidably provided through the side of the connecting frame (15); a linkage part (77) is provided between the rotating part (7) located below and the corresponding sliding part (8); The surface of the slide plate (13) on the surface polishing part (11) is provided with a lifting groove (57), and an avoidance cavity (58) communicating with the lifting groove (57) is provided inside it; the connecting frame (15) includes a lifting column (59) that slides with the lifting groove (57). The rotating part (7) includes an annular plate (31) rotatably disposed between the guide (6) and the sleeve (5); a fixing ring (34) is fixed to the top of the annular plate (31); a plurality of guide grooves (39) are evenly provided on the surface of the fixing ring (34); the sliding part (8) includes a connecting ring (40); a plurality of square tubes (42) that slide in cooperation with the corresponding guide grooves (39) are evenly fixed to the bottom surface of the connecting ring (40); the sliding frame (9) includes a slider (44) slidably disposed inside the square tubes (42); a connecting rod (45) is fixed to the bottom surface of the slider (44); a U-shaped seat (46) with a sealed end is fixed to the bottom end of the connecting rod (45). The U-shaped seat (46) has a relief groove (60) on its surface; a baffle (61) is fixed to the top of the lifting column (59); a second support spring (62) sleeved on the lifting column (59) is fixedly connected between the baffle (61) and the sliding plate (13); a ball bearing (63) is provided at the bottom of the lifting column (59); a limiting hole (64) is provided on the side of the lifting column (59); the inner wall grinding part (16) includes an outer sleeve that slides with the limiting hole (64). 65); An inner sleeve (66) is slidably disposed inside the outer sleeve (65); a grinding roller (67) is fixed at the end of the inner sleeve (66); the grinding roller (67) can slide inside the relief cavity (58) and the relief groove (60); a first spring (68) is fixedly connected between the inner sleeve (66) and the outer sleeve (65); a second spring (69) sleeved on the outer sleeve (65) is fixedly connected between the end of the outer sleeve (65) and the lifting column (59); The outer sleeve (65) is fixed with a hemispherical head (70) at its end; the stamping part (4) includes a first guide post (71); the top of the first guide post (71) is fixedly connected to the output end of the electric cylinder through a connecting flange; pressure plates (72) are symmetrically fixed on the periphery of the first guide post (71); a tapered guide post (73) is fixed at the bottom of the first guide post (71); a second guide post (74) is fixed at the bottom of the tapered guide post (73); and a stamping head (75) is fixed at the bottom of the second guide post (74).

2. The punching device for processing fire doors according to claim 1, characterized in that: The machine tool (1) includes a base (17); a conveyor frame (18) is symmetrically fixed on the surface of the base (17); a support frame (19) is fixed between the two conveyor frames (18); a collection box (76) is placed on the surface of the base (17); a number of conveyor rollers (20) are evenly rotated on the side of the conveyor frame (18); a controller (21) is fixedly installed at the end of the conveyor frame (18); and clearance openings (22) are provided on the surface and bottom of the support frame (19).

3. The punching device for processing fire doors according to claim 2, characterized in that: A lead screw (23) is symmetrically and rotatably arranged through the inner walls of the support frame (19); a slide rod (24) is symmetrically fixed on both sides of the inner bottom surface of the support frame (19) corresponding to the lead screw (23); a sprocket (25) is fixed at the bottom end of the lead screw (23); a chain (26) is provided for meshing and transmission between the two sprockets (25); a servo motor (27) is fixedly installed on the inner bottom surface of the support frame (19) and electrically connected to the output end of the controller (21); the output end of the servo motor (27) is fixedly connected to the end of the lead screw (23); The sleeve (5) has a lifting plate (28) symmetrically fixed on its outer wall; the surface of the lifting plate (28) is provided with a screw hole (29) that is threaded and rotates with the corresponding lead screw (23), and the surface of the lifting plate (28) is provided with sliding holes (30) symmetrically on both sides of the screw hole (29) that are slidably engaged with the slide rod (24).

4. The punching device for processing fire doors according to claim 3, characterized in that: The outer wall of the annular plate (31) is fixed with an annular rail (32); the inner wall of the sleeve (5) is provided with an annular groove (33) that rotates with the annular rail (32); the surface of the fixed ring (34) is fixed with an upper retaining ring (35); the outer wall of the upper retaining ring (35) is fixed with a gear ring (36); the surface of the lifting plate (28) is fixed with a drive motor (37) that is electrically connected to the output end of the controller (21); the output end of the drive motor (37) is fixed with a gear (38) that meshes with the gear ring (36).

5. A punching device for processing fire doors according to claim 4, characterized in that: A lower stop ring (41) is fixed to the bottom surface of the connecting ring (40); a first support spring (43) sleeved on the corresponding square tube (42) is fixedly connected between the connecting ring (40) and the fixing ring (34). A return spring (47) is fixedly connected between the slider (44) and the connecting ring (40). The linkage part (77) includes an L-shaped plate (78) fixedly installed on the top of the corresponding fixed ring (34) and an ear plate (79) fixedly installed on the inner wall of the corresponding lower stop ring (41); a guide rod (80) is fixed at the end of the L-shaped plate (78); a stop plate (81) that slides with the guide rod (80) is slidably provided on the side of the L-shaped plate (78); a first guide wheel (82) is rotatably provided on the side of the L-shaped plate (78); a second guide wheel (83) is rotatably provided on the inner wall of the annular plate (31); a connecting rope (84) that passes through the first guide wheel (82) and the second guide wheel (83) is fixedly connected between the ear plate (79) and the stop plate (81).

6. A punching device for processing fire doors according to claim 5, characterized in that: The inner wall of the U-shaped seat (46) is symmetrically provided with sliding grooves (48); the sliding plate (13) is fixed with sliding rails (49) that slide in cooperation with the corresponding sliding grooves (48) on both sides; an extension rod (50) is fixed at the end of the sliding plate (13); a guide hole (51) is provided at the sealing end of the U-shaped seat (46) that slides in cooperation with the extension rod (50); a tension spring (52) sleeved on the extension rod (50) is fixedly connected between the sealing end of the U-shaped seat (46) and the sliding plate (13).

7. A punching device for processing fire doors according to claim 6, characterized in that: The extension rod (50) has a guide ball (53) fixed at its end; the guide member (6) includes a first guide ring (54) fixedly installed on the inner bottom surface of the sleeve (5); a conical guide ring (55) is fixed on the surface of the first guide ring (54); and a second guide ring (56) is fixed on the surface of the conical guide ring (55).

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