Punching machine capable of conveniently removing punching burrs

Abstract

The utility model belongs to the field of punching machines, and particularly relates to a punching machine convenient for removing punching burrs, which is characterized in that a puncher is arranged on the lower end face of a support frame, a support plate is arranged in a first workbench in a sliding manner, and two clamping components are arranged on the upper end face of the first workbench on two sides of the support plate in a sliding manner; a polishing boss is slidably arranged on the upper end face of the second workbench under the puncher, a first connecting cylinder is arranged on the upper end face of the polishing boss, a second connecting cylinder is arranged on the upper end face of the first connecting cylinder, and a plurality of arc-shaped polishing pieces are rotatably arranged on the first connecting cylinder on the outer side. An elastic connecting assembly is rotationally connected between each arc-shaped grinding piece and the side wall of the second connecting cylinder. By arranging the arc-shaped polishing piece and the like, when the motor rotates, the arc-shaped polishing piece inclines under the action of centrifugal force to polish the upper edge of a hole, and meanwhile, the polishing boss polishes the lower edge of the hole, so that burrs on the upper edge and the lower edge of the hole are removed.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching machines, and in particular relates to a punching machine which is convenient for removing punching burrs. Background Art

[0002] When punching some thick plates, burrs are easily generated due to the thickness of the plates. The burrs generated by punching generally need to be polished again. Usually, a second grinding process is required after punching, resulting in a decrease in overall efficiency. However, if the burrs on the holes can be polished directly after punching, the production cycle of the workpiece will be shortened.

[0003] For example, patent application number CN202320895742.X discloses a punching machine that is convenient for removing punching burrs, which includes a punching machine and a rotary grinding motor. A hydraulic press is provided at the front end of the punching machine, a clamping table is provided below the hydraulic press, a punching table is provided below the clamping table, a hydraulic pipe is provided on one side of the hydraulic press, a punching column is provided at the lower end of the hydraulic press, a first hole is provided below the punching column, a second hole is provided below the first hole, and a rotary grinding motor is provided inside the second hole. The utility model utilizes the centrifugal force of the rotary grinding motor to make the metal grinding wire sleeve grind the punching area at high speed.

[0004] In the prior art, the inner hole wall of the punching hole is polished by means of a rotating polishing motor and a metal polishing wire sleeve. Combined with the punching process, the workpiece is punched under the downward pressure of the punching tool. However, there are still certain deficiencies as a whole. First, burrs generally appear on the upper and lower edges of the hole during punching. The existing deburring punching machine can only clean the burrs on the upper or lower edge of the hole, so that the hole edge of a single end face needs to be turned over for a second time after the burrs are removed, and the burrs on the upper and lower edges cannot be cleaned at the same time, which is not convenient for the advancement of the next workpiece production process and affects production efficiency.

[0005] Secondly, when grinding the edge of the hole on the workpiece, the temperature of the workpiece will rise rapidly. If the inner wall of the hole of the workpiece is not cooled down, the hole may be deformed to a certain extent, affecting its use. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the present invention provides a punching machine that facilitates the removal of punching burrs. The present invention is provided with a motor, a grinding boss, and an arc-shaped grinding disc. When the motor rotates, the arc-shaped grinding disc is subjected to centrifugal force and tilts to grind the upper edge of the hole. At the same time, the grinding boss grinds the lower edge of the hole, thereby removing burrs from the upper and lower edges of the hole. In conjunction with the first connecting tube and the third through hole, the hole being ground can also be deburred, effectively improving the forming quality of the hole.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a punching machine that is convenient for removing punching burrs, comprising a first workbench, a second workbench is provided below the first workbench, and a support frame is provided on the upper end surface of the first workbench, which is characterized in that a puncher is provided, a support plate is provided inside the first workbench for sliding movement, and two clamping assemblies are provided on the upper end surface of the first workbench for sliding movement on both sides of the support plate, a motor is provided just below the puncher and for sliding movement above the second workbench, a grinding boss is provided at the output end of the motor, a first connecting cylinder is provided on the upper end surface of the grinding boss, a second connecting cylinder is provided on the upper end surface of the first connecting cylinder, and a plurality of arc-shaped grinding sheets are rotatably provided on the outer side of the second connecting cylinder, and each of the arc-shaped grinding sheets is rotatably connected to the side wall of the second connecting cylinder by an elastic connecting assembly.

[0008] Optionally, the elastic connection assembly includes a second connecting rod with one end rotatably connected to the side wall of the second connecting tube, a first connecting rod is slidingly arranged inside the second connecting rod, a spring is arranged internally in the mutual sliding connection between the first and second connecting rods, and one end outside the first connecting rod is rotatably connected to the end face of the arc-shaped grinding plate.

[0009] Optionally, the elastic connection assembly further includes sliding grooves arranged on multiple side walls of the second connecting rod, a slider is slidably arranged inside each of the sliding grooves, and one end of each of the sliders is fixedly connected to the side wall of the first connecting rod.

[0010] Optionally, the elastic connection assembly further includes a telescopic rod arranged on the inner side of the spring, and both ends of the telescopic rod are fixedly connected to the side walls of the first connecting rod and the second connecting rod respectively.

[0011] Optionally, a third through hole is provided on the bottom of the second connecting tube at the upper end surface of the first connecting tube, and a plurality of second through holes are provided on the outer circumferential surface of the first connecting tube.

[0012] Optionally, a guide plate is fixedly provided at the bottom of the support plate, and a sprinkler is provided on the lower bottom surface of the guide plate above the second connecting tube.

[0013] Optionally, the clamping assembly includes a clamping frame slidably arranged on one side of the support frame, and a clamping plate is slidably arranged inside the clamping frame.

[0014] In summary, compared with the prior art, the beneficial effects of this solution are:

[0015] (1) The utility model provides a motor, a grinding boss, an arc-shaped grinding sheet and other components. When the motor rotates, the arc-shaped grinding sheet is subjected to the centrifugal force to tilt and grind the upper edge of the hole. At the same time, the grinding boss can also grind the lower edge of the hole, thereby simultaneously removing burrs on the upper and lower edges of the hole, effectively improving production efficiency.

[0016] (2) The utility model provides a first connecting tube, a third through hole, a water sprayer and other components. When the motor drives the grinding boss and the arc-shaped grinding plate to rotate to remove burrs on the upper and lower edges of the hole, the first connecting tube rotates under the drive of the grinding boss. The centrifugal force generated by the rotation of the first connecting tube causes the water inside the first connecting tube to be sprayed out from the second through hole. The sprayed water will fall on the inner wall of the hole to cool the hole, which can effectively avoid hole deformation and improve the hole forming quality and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 This is the main view of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of some parts of the utility model;

[0020] Figure 4 for Figure 3 The main view of the middle part;

[0021] Figure 5 for Figure 4 Stereoscopic cross-sectional view at AA in the middle;

[0022] Figure 6 for Figure 3 A partial enlarged view of point B in the middle;

[0023] Figure 7 for Figure 5 A partial enlarged view of point C in the middle.

[0024] In the figure: the first workbench 10, the second workbench 11, the support frame 12, the puncher 13, the clamping frame 14, the clamping plate 15, the first push cylinder 16, the second push cylinder 17, the support plate 18, the third push cylinder 19, the first through hole 20, the guide plate 21, the waste frame 22, the fourth push cylinder 23, the motor 24, the grinding boss 25, the first connecting tube 26, the second connecting tube 27, the arc-shaped grinding sheet 28, the first connecting rod 29, the second connecting rod 30, the slide 31, the slider 32, the spring 33, the telescopic rod 34, the second through hole 35, the third through hole 36, and the sprinkler 37. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0026] like Figure 1 、 Figure 2 and Figure 3 As shown, a punching machine that is convenient for removing punching burrs is provided. A second workbench 11 is provided below the first workbench 10. A support frame 12 is provided on the upper end surface of the first workbench 10. A puncher 13 is provided on the lower end surface of the support frame 12. A support plate 18 is provided for sliding inside the first workbench 10. A third push cylinder 19 is provided on one side of the first workbench 10. The output end of the third push cylinder 19 is fixedly connected to one side of the support plate 18. Two clamping assemblies are provided on both sides of the support plate 18 for sliding movement on the upper end surface of the first workbench 10. The puncher 13 is directly below the upper surface of the second workbench 11. A motor 24 is provided for sliding in the square, and a fourth push cylinder 23 is provided on the lower end face of the second workbench 11. The output end of the fourth push cylinder 23 passes through the second workbench 11 and is fixedly connected to the bottom of the motor 24. A grinding boss 25 is provided at the output end of the motor 24. A first connecting tube 26 is provided on the upper end face of the grinding boss 25. A second connecting tube 27 is provided on the upper end face of the first connecting tube 26. A plurality of arc-shaped grinding sheets 28 are rotatably provided on the outer side of the second connecting tube 27 on the first connecting tube 26. An elastic connecting component is rotatably connected to the side wall of each arc-shaped grinding sheet 28 and the second connecting tube 27.

[0027] Specifically, the third push cylinder 19 and the fourth push cylinder 23 are both electric push cylinders, hydraulic push cylinders, etc., which are existing technologies and will not be elaborated in detail in this solution. The output end of the third push cylinder 19 drives the support plate 18 to move horizontally, and sliders are provided on both sides of the support plate 18, which cooperate with the slide grooves provided inside the first workbench 10, so that when the workpiece is clamped and punched, the support plate 18 is directly below the puncher 13. When the burrs on the hole are polished after the workpiece is punched, the output end of the third push cylinder 19 drives the support plate 18 to move horizontally, and the output end of the fourth push cylinder 23 drives the motor 24 to move upward. The motor 24 drives the grinding boss 25 and the arc-shaped grinding sheet 28 and other components to move upward, so that the arc-shaped grinding sheet 28 and other components can enter the inside of the hole.

[0028] The motor 24 is a waterproof motor, which is an existing technology and will not be elaborated in detail in this solution. The motor 24 drives the grinding boss 25, the first connecting tube 26, the arc-shaped grinding plate 28 and other components to rotate to grind the upper and lower edges of the hole after the workpiece is punched.

[0029] In this solution, the length of the first connecting tube 26 should be slightly smaller than the length of the hole to be polished.

[0030] Further, such as Figure 1As shown, the clamping assembly includes a clamping frame 14 slidably arranged on one side of the support frame 12, and two second push cylinders 17 are symmetrically arranged on the two sides of the support frame 12. One end of each second push cylinder 17 is fixedly connected to one side of the clamping frame 14, and a clamping plate 15 is slidably arranged inside the clamping frame 14. The upper end surface of the clamping frame 14 is provided with a first push cylinder 16, and the output end of the first push cylinder 16 passes through the side wall of the clamping frame 14 and is fixedly connected to the upper end surface of the clamping plate 15.

[0031] Specifically, the first push cylinder 16 and the second push cylinder 17 are both electric push cylinders, hydraulic push cylinders, etc., which are existing technologies and will not be elaborated in detail in this solution. The output end of the second push cylinder 17 drives the clamping frame 14 to move horizontally, so that workers can adjust the distance between the two clamping components according to the thickness of the plate.

[0032] The output end of the first push cylinder 16 drives the clamping plate 15 to move vertically up and down, so that workers can adjust the clamping according to the thickness of the processed plate.

[0033] Further, such as Figure 1 、 Figure 2 and Figure 5 As shown, a first through hole 20 is provided on the support plate 18, a guide plate 21 is fixedly provided on the bottom of the support plate 18, a waste frame 22 is provided on the upper end surface of the second workbench 11 below the output port of the guide plate 21, a water sprayer 37 is provided on the lower bottom surface of the guide plate 21 above the second connecting tube 27, a third through hole 36 is provided on the bottom of the second connecting tube 27 in the top wall of the first connecting tube 26, and a plurality of second through holes 35 are provided on the side wall of the first connecting tube 26.

[0034] Specifically, the sprinkler 37 is provided with a water inlet port, which is supplied with water from an external water source. The second through hole 35 is mainly provided on the upper end side wall of the first connecting tube 26, so that the first connecting tube 26 can store some water inside when it is not rotating. When punching, the water outlet end of the sprinkler 37 is above the upper port of the second connecting tube 27. At this time, the sprinkler 37 injects water into the first connecting tube 26. When the burrs on the hole are polished and removed, the first connecting tube 26 will rotate. When the first connecting tube 26 rotates, the water inside the first connecting tube 26 will be sprayed on the inner wall of the hole through the second through hole 35 under the action of centrifugal force.

[0035] The arrangement of the guide plate 21 and the waste frame 22 allows the waste after punching to fall onto the guide plate 21 through the first through hole 20 and then slide into the waste frame 22 for collection.

[0036] Further, such as Figure 5 、 Figure 6 and Figure 7As shown, the elastic connection assembly includes a second connecting rod 30 with one end rotatably connected to the side wall of the second connecting cylinder, a first connecting rod 29 is slidingly arranged inside the second connecting rod, and a spring 33 is arranged internally in the connection between the first connecting rod 29 and the second connecting rod 30 which slide with each other, and one end outside the first connecting rod 29 is rotatably connected to the end face of the arc-shaped grinding plate 28.

[0037] Specifically, the arrangement of the first connecting rod 29, the second connecting rod 30 and the spring 33 enables the distance between two relative arc-shaped grinding plates 28 to be smaller than the diameter of the hole when the multiple arc-shaped grinding plates 28 enter the workpiece hole, thereby enabling the arc-shaped grinding plates 28 and other components to extend into the hole.

[0038] Further, such as Figure 6 As shown, the elastic connection assembly also includes sliding grooves 31 arranged on multiple side walls of the second connecting rod 30, and a slider 32 is slidably arranged inside each sliding groove 31, and one end of each slider 32 is fixedly connected to the side wall of the first connecting rod 29.

[0039] Specifically, the cooperation between the slide groove 31 and the slider 32 enables the arc-shaped grinding sheet 28 to generate a pulling force on the arc-shaped grinding sheet 28 when grinding the upper edge of the hole, thereby preventing the arc-shaped grinding sheet 28 from having excessive friction with the side wall of the hole under the action of centrifugal force, thereby effectively avoiding damage to the arc-shaped grinding sheet 28 or excessive grinding of the hole.

[0040] Further, such as Figure 7 As shown, the elastic connection assembly further includes a telescopic rod 34 arranged on the inner side of the spring 33 , and both ends of the telescopic rod 34 are fixedly connected to the inner walls of the first connecting rod 29 and the second connecting rod 30 .

[0041] Specifically, the telescopic rod 34 is an ordinary telescopic rod, which is a prior art and will not be elaborated in detail in this solution. The setting of the telescopic rod 34 ensures that the arc-shaped grinding plate 28 will not quickly contact the upper end of the hole under centrifugal force. After the grinding is completed, the motor 24 stops rotating and the arc-shaped grinding plate 28 will not quickly rotate toward the second connecting tube 27 after suddenly losing the centrifugal force, thereby playing a buffering role for the elastic connection component.

[0042] First, according to the width and thickness of the workpiece to be punched, each second push cylinder 17 is started, and the output end of the second push cylinder 17 drives the clamping frame 14 to move horizontally until the width between the two clamping frames 14 is slightly larger than the width of the workpiece, then each first push cylinder 16 is started, and the output end of the first push cylinder 16 drives the clamping plate 15 to move vertically up and down until the distance between the lower bottom surface of the clamping plate 15 and the clamping frame 14 is slightly larger than the thickness of the plate, and then the workpiece is placed in the clamping part between the clamping frame 14 and the clamping plate 15, and then the second push cylinder 17 and the first push cylinder 16 are started to drive the clamping frame 14 and the clamping plate 15 to clamp and fix the workpiece, and then the puncher 13 is started to punch the plate, and the waste after punching falls onto the guide plate 21 through the first through hole 20, slides into the waste frame 22 for collection, and during the punching process, the water outlet of the sprinkler 37 will inject water into the cavity in the first connecting tube 26.

[0043] Then, the third push cylinder 19 is started, and the output end of the third push cylinder 19 drives the support plate 18 to move horizontally until the support plate 18 moves to the side of the third push cylinder 19, and then the fourth push cylinder 23 is started, and the brush output end of the fourth push cylinder 23 drives the motor 24 to move upward, and the motor 24 drives the grinding boss 25 and the first connecting tube 26 and the arc-shaped grinding sheet 28 and other components to move upward until the outer wall of the grinding boss 25 contacts the lower port of the plate punching. At this time, the motor 24 is started, and the output end of the motor 24 drives the grinding boss 25 and the arc-shaped grinding sheet 28 to rotate, and the grinding boss 25 grinds the lower port of the hole to remove burrs. The arc-shaped grinding sheet 28 pulls the first connecting rod 29 under the action of centrifugal force. At this time, the first connecting rod 29 and the second connecting rod 30 are displaced, so that the springs 33 inside the first connecting rod 29 and the second connecting rod 30 are stretched, and the arc-shaped grinding sheet 28 contacts and rubs with the upper port of the hole, thereby removing the burrs on the upper port of the hole.

[0044] During the process of grinding and removing burrs from the hole, the rotation of the first connecting cylinder 26 causes the water inside the first connecting cylinder 26 to be sprayed out from the second through hole 35 to the inner wall of the hole under the action of centrifugal force, thereby cooling the hole.

[0045] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0046] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0047] The above description shows and describes several preferred embodiments of the present application. However, as previously mentioned, it should be understood that the present application is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present application can be used in various other combinations, modifications, and environments and can be modified within the scope of the application concept described herein through the above teachings or technology or knowledge in the relevant field. Modifications and changes made by those skilled in the art that do not depart from the spirit and scope of the present application should be protected by the claims appended hereto.

Claims

1. A punching machine for removing punching burrs, comprising a first workbench (10), a second workbench (11) being provided below the first workbench (10), and a support frame (12) being provided on the upper end surface of the first workbench (10), characterized in that: The lower end surface of the support frame (12) is provided with a puncher (13), the interior of the first workbench (10) is slidingly provided with a support plate (18), the upper end surface of the first workbench (10) is slidingly provided with two clamping assemblies on both sides of the support plate (18), a motor (24) is slidingly provided just below the puncher (13) and above the second workbench (11), the output end of the motor (24) is provided with a grinding boss (25), the upper end surface of the grinding boss (25) is provided with a first connecting tube (26), the upper end surface of the first connecting tube (26) is provided with a second connecting tube (27), the outer side of the second connecting tube (27) is rotatably provided with a plurality of arc-shaped grinding sheets (28), and each of the arc-shaped grinding sheets (28) is rotatably connected to the side wall of the second connecting tube (27) by an elastic connecting assembly.

2. A punching machine for removing punching burrs according to claim 1, characterized in that: The elastic connection assembly includes a second connecting rod (30) with one end rotatably connected to the side wall of the second connecting cylinder (27), a first connecting rod (29) is slidably provided inside the second connecting rod (30), a spring (33) is provided internally in the mutual sliding connection between the first connecting rod (29) and the second connecting rod (30), and an external end of the first connecting rod (29) is rotatably connected to the end surface of the arc-shaped grinding plate (28).

3. A punching machine for removing punching burrs according to claim 2, characterized in that: The elastic connection assembly further comprises sliding grooves (31) arranged on a plurality of side walls of the second connecting rod (30), a slider (32) being slidably arranged inside each of the sliding grooves (31), and one end of each of the sliders (32) being fixedly connected to the side wall of the first connecting rod (29).

4. A punching machine for removing punching burrs according to claim 3, characterized in that: The elastic connection assembly further comprises a telescopic rod (34) arranged inside the spring (33), and both ends of the telescopic rod (34) are fixedly connected to the side walls of the first connecting rod (29) and the second connecting rod (30), respectively.

5. A punching machine for removing punching burrs according to claim 1, characterized in that: A third through hole (36) is provided at the bottom of the second connecting tube (27) at the upper end surface of the first connecting tube (26), and a plurality of second through holes (35) are provided on the outer circumferential surface of the first connecting tube (26).

6. A punching machine for removing punching burrs according to claim 5, characterized in that: A guide plate (21) is fixedly provided at the bottom of the support plate (18), and a water sprayer (37) is provided on the lower bottom surface of the guide plate (21) above the second connecting tube (27).

7. A punching machine for removing punching burrs according to claim 1, characterized in that: The clamping assembly comprises a clamping frame (14) slidably arranged on one side of the support frame (12), and a clamping plate (15) is slidably arranged inside the clamping frame (14).

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