Punching device for hardware machining

Abstract

The punching device for hardware machining comprises a base table, an air cylinder, a main punching rod and two auxiliary punching rods, the air cylinder is fixedly connected to the base table, a supporting plate is fixedly connected to the bottom end of the air cylinder, and the main punching rod is fixedly connected to the middle of the bottom end of the supporting plate; in the punching process, impact force borne by the two auxiliary punching rods can act on a connecting plate, the stress borne by the connecting plate can be larger along with increasing of the extension length of the connecting plate, the bottom end of a driving rod is located over the auxiliary punching rods and is fixed, and therefore the punching efficiency is improved. Therefore, the driving rod can resist the connecting plate and the auxiliary punching rod, impact force is prevented from directly acting on the connecting plate, the connecting plate is prevented from being deformed due to stress concentration, the punching precision is not affected, and the connecting plate can be prevented from being damaged.

Description

Technical Field

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

[0002] Lamps and pipes are often installed on the top of the wall in a suspended manner. In the suspended installation structure, for the sake of beauty and easy disassembly, the contact end of the sling and the top of the wall is often connected to the wall with a hardware cover. Due to the different actual usage scenarios, this kind of cover often needs temporary drilling, and it is in a multi-hole state. The existing drilling equipment is mostly medium and large stamping lathes, which are not convenient enough to use; and other drilling methods, such as pistol drills, can achieve drilling, but they are usually single-time single-hole, which is difficult to achieve for the multi-hole cover, and it is also difficult to ensure the accuracy of the distance between the holes, such as Figure 1 As shown, when the distance between the auxiliary holes on both sides of the main hole in the middle of the cover body changes, it will cause problems such as uneven processing accuracy, great difficulty and low efficiency.

[0003] Secondly, the difficulty in processing thin-walled porous parts such as the cover body is that when the processing equipment has to be reduced in size to ensure convenience, it will make it difficult to attach the punching actuator of the secondary hole to the actuator of the main hole.

[0004] Based on this, the present invention designs a punching device for hardware processing to solve the above problems. Summary of the invention

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

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a punching device for hardware processing, comprising a base, a cylinder, a main punching rod and two auxiliary punching rods, the cylinder is fixedly connected to the base, a support plate is fixedly connected to the bottom end of the cylinder, the main punching rod is fixedly connected to the middle part of the bottom end of the support plate, and adjustment groups are arranged on both sides of the support plate, and the two auxiliary punching rods are respectively located below the two adjustment groups; The adjustment group includes a connecting plate and a vertical rod, a strip groove is provided inside the vertical rod, the top end of the auxiliary stamping rod is fixedly connected to the bottom end of the connecting plate, the vertical rod is fixedly connected to the top end of the support plate and is located on one side of the connecting plate, the connecting plate and the support plate are slidably connected in the horizontal direction, a driving rod is rotatably connected to the connecting plate, the top end of the driving rod is rotatably connected to the limiting rod, the limiting rod is slidably connected to the strip groove, and a locking group is arranged under the limiting rod, and the locking group is used to fix the connecting plate and the limiting rod after the connecting plate slides outward a certain distance.

[0007] As a further scheme of the present invention, the locking group includes a cross bar and two support rods, the cross bar is located in front of the support plate and the connecting plate, the two support rods are rotatably connected to the left and right sides of the side wall of the limit rod respectively, the side wall of the cross bar is provided with a limit groove, the bottom ends of the two support rods are located inside the limit groove and can slide along the limit groove when the limit rod descends, the bottom ends of the two support rods are fixedly connected with a first gear, and a first rack rod is jointly arranged at a position directly below the two first gears and close to the front end of the cross bar, and the first rack rod is slidably connected to the cross bar in the front-rear direction.

[0008] As a further solution of the present invention, a protective plate is arranged below the cross bar, the protective plate is arranged on the side wall of the support plate, and the end of the protective plate is slidably connected to the connecting plate.

[0009] As a further solution of the present invention, a pressure group is provided on the protective plate, and the pressure group is used to apply downward pressure in the opposite direction of the connecting plate and the auxiliary punch rod to prevent the connecting plate from being deformed due to stress concentration; The pressure group includes a sliding rod and a contact block. The sliding rod is slidably connected to the bottom of the cross bar in the left and right directions, the cross bar is slidably connected to the support plate in the vertical direction, the protective plate is slidably connected to the side wall of the support plate, the bottom end of the sliding rod is rotatably connected to a push rod, the top end of the push rod is rotatably connected to the side wall of the protective plate, the contact block is wedge-shaped and fixedly connected to the connecting plate, and the end of the protective plate is provided with an inclined surface matching the contact block.

[0010] As a further solution of the present invention, magnets are embedded on the inclined surfaces of the contact block and the protective plate.

[0011] As a further solution of the present invention, a second rack rod is fixedly connected to the top end of the connecting plate, a second gear is meshed on the second rack rod, and the second gear is rotatably connected to the supporting plate.

[0012] As a further solution of the present invention, a knob is fixedly connected to the rotating shaft of the second gear.

[0013] As a further solution of the present invention, a paddle is fixedly connected to the side wall of the first rack rod, and the paddle is used to drive the first rack rod to slide along the cross bar.

[0014] Compared with the prior art, the present invention has the following beneficial effects: During the punching process, the impact force exerted on the two auxiliary punch rods will act on the connecting plate, and as the length of the connecting plate increases, the stress exerted on the connecting plate will become greater. The bottom end of the driving rod is directly above the auxiliary punch rod and is fixed, so the driving rod can resist the connecting plate and the auxiliary punch rod, preventing the impact force from directly acting on the connecting plate, causing the connecting plate to deform due to stress concentration and affecting the punching accuracy, and also preventing the connecting plate from being damaged.

[0015] The punching device is small in size, convenient and has high punching accuracy. The attachment of the two connecting plates and the auxiliary punching rod to the main punching rod is more stable. The punching of the main hole and the auxiliary hole on the cover body can be completed in a single process.

[0016] During the punching process, the impact force received by the connecting plate will tend to swing the connecting plate upward. The protective plate can assist in resisting this part of the impact force, and the inclined surface of the protective plate is in contact with the contact block. When the connecting plate has a tendency to bend upward, the connecting plate must drive the driving rod to rise. At this time, the top end of the driving rod will drive the cross bar to slide down along the support plate through the limit rod, two support rods and the first gear. Although the support plate is slidably connected to the cross bar, if the cross bar slides up, it will push the protective plate to one side through the push rod, so that the inclined surface on the protective plate contacts the inclined side wall of the contact block and gives the connecting plate a secondary block and reverse downward pressure, thereby ensuring the stability of the connecting plate during punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the main hole, the auxiliary hole and the cover; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic diagram of the positional relationship between the support plate, the connecting plate, the main punching rod and the auxiliary punching rod of the present invention; Figure 4 It is a schematic diagram of the positional relationship between the connecting plate and the supporting plate, and between the vertical rod and the driving rod of the present invention; Figure 5 It is a schematic diagram of the positional relationship between the support plate and the vertical rod and the second gear and the second rack rod of the present invention; Figure 6 for Figure 5 A partial enlarged view of the middle A; Figure 7 It is a schematic diagram of the positional relationship between the cross bar, the first gear and the limiting groove of the present invention; Figure 8 It is a schematic diagram of the connection relationship between the first rack rod and the cross bar of the present invention; Fig. 9 It is a schematic diagram of the positional relationship between the contact block and the protective plate of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Base; 2. Cylinder; 3. Main punch rod; 4. Secondary punch rod; 5. Support plate; 6. Connecting plate; 7. Vertical rod; 8. Driving rod; 9. Limit rod; 10. Cross bar; 11. Support rod; 12. Limit groove; 13. First gear; 14. First rack rod; 15. Protective plate; 16. Sliding rod; 17. Push rod; 18. Contact block; 19. Secondary rack rod; 20. Secondary gear; 21. Knob; 22. Paddle; 23. Strip groove; 24. Main hole; 25. Secondary hole; 26. Cover body. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The present invention provides a technical solution: a punching device for hardware processing, comprising a base 1, a cylinder 2, a main punching rod 3 and two auxiliary punching rods 4, the cylinder 2 is fixedly connected to the base 1, a support plate 5 is fixedly connected to the bottom end of the cylinder 2, the main punching rod 3 is fixedly connected to the middle part of the bottom end of the support plate 5, and adjustment groups are arranged on both sides of the support plate 5, and the two auxiliary punching rods 4 are respectively located under the two adjustment groups; The adjustment group includes a connecting plate 6 and a vertical rod 7, a strip groove 23 is opened inside the vertical rod 7, the top of the auxiliary stamping rod 4 is fixedly connected to the bottom of the connecting plate 6, the vertical rod 7 is fixedly connected to the top of the support plate 5 and is located on one side of the connecting plate 6, the connecting plate 6 and the support plate 5 are slidably connected in the horizontal direction, and a driving rod 8 is rotatably connected to the connecting plate 6, and the top of the driving rod 8 is rotatably connected to a limiting rod 9, the limiting rod 9 is slidably connected to the strip groove 23, and a locking group is arranged under the limiting rod 9, and the locking group is used to fix the connecting plate 6 and the limiting rod 9 after the connecting plate 6 slides outward a certain distance.

[0021] like Figure 1-Figure 9 As shown: The distance between the two auxiliary punching rods 4 and the main punching rod 3 is adjusted according to the distance between the main hole and the auxiliary hole on the cover body to be punched; Adjustment process: When the connecting plate 6 is pulled out from the inside of the supporting plate 5 to one side, the connecting plate 6 will slide along the supporting plate 5 and drive the secondary punching rod 4 to move, thereby changing the distance between the main punching rod 3 and the secondary punching rod 4. During the movement, the connecting plate 6 will drive the bottom end of the driving rod 8 to move. At this time, the top end of the driving rod 8 will drive the limiting rod 9 to slide down along the strip groove 23 on the vertical rod 7, thereby causing the top and bottom ends of the driving rod 8 to change with the movement of the connecting plate 6. When the distance between the main punching rod 3 and the secondary punching rod 4 reaches the standard, the locking group will fix the position of the driving rod 8 inside the strip groove 23, thereby preventing the connecting plate 6 from continuing to move along the supporting plate 5, thereby fixing the adjusted position, and then the punching work can be carried out; Punching process: Place the cover on the base 1, and then control the extension of the cylinder 2 to drive the support plate 5 and the connecting plate 6 to descend, so that the main punching rod 3 and the auxiliary punching rod 4 can punch holes in the cover; During the punching process, the impact force on the two auxiliary punching rods 4 will act on the connecting plate 6, and as the length of the connecting plate 6 increases, the stress on the connecting plate 6 will be greater, and the bottom end of the driving rod 8 is located directly above the auxiliary punching rod 4 and is fixed, so the driving rod 8 can resist the connecting plate 6 and the auxiliary punching rod 4, avoiding the impact force directly acting on the connecting plate 6, causing the connecting plate 6 to be deformed due to stress concentration and affecting the punching accuracy, and also avoiding damage to the connecting plate 6; Moreover, the punching device is small in size, convenient, and has high punching accuracy. The attachment of the two connecting plates 6 and the auxiliary punching rod 4 to the main punching rod 3 is more stable, and the punching of the main hole and the auxiliary hole on the cover body can be completed in a single process.

[0022] The locking group includes a cross bar 10 and two support rods 11. The cross bar 10 is located in front of the support plate 5 and the connecting plate 6. The two support rods 11 are rotatably connected to the left and right sides of the side walls of the limit rod 9 respectively. The side wall of the cross bar 10 is provided with a limit groove 12. The bottom ends of the two support rods 11 are both located inside the limit groove 12 and can slide along the limit groove 12 when the limit rod 9 descends. The bottom ends of the two support rods 11 are fixedly connected with a first gear 13. A first rack rod 14 is commonly provided directly below the two first gears 13 near the front end of the cross bar 10. The first rack rod 14 is slidably connected to the cross bar 10 in the front-to-back direction.

[0023] like Figure 3 , Figure 4 as well as Figure 7-Figure 9 As shown: During the adjustment process, when the connecting plate 6 slides along the supporting plate 5, the top end of the driving rod 8 and the limiting rod 9 will slide down along the strip groove 23. During the descent of the limiting rod 9, the bottom ends of the two supporting rods 11 will be driven to slide in the left and right directions along the limiting groove 12 respectively. At this time, the first gear 13 will also move inside the cross bar 10, and the distance between the two first gears 13 will gradually increase as the moving distance of the connecting plate 6 increases. At this time, the first rack rod 14 is located in front of and below the two first gears 13, that is, it does not contact the first gear 13, so the first gear 13 can slide smoothly at this time. When the connecting plate 6 slides outward to a specified distance, the driving rod 8 and the connecting plate 6 need to be locked to ensure stability during the drilling process; Locking process: Manually push the first rack rod 14 inward along the cross bar 10, and the first rack rod 14 will mesh with the teeth on the two first gears 13. The first rack rod 14 is slidably connected to the cross bar 10 in the front-to-back direction, and the first gear 13 moves in the left-to-right direction inside the cross bar 10. When the first gear 13 is meshed with the first rack rod 14, the first gear 13, the support rod 11 and the driving rod 8 are fixed. When the driving rod 8 is fixed, the connecting plate 6 cannot slide along the supporting plate 5, thereby ensuring that it will not move during the punching process. When the drilling is completed, the first rack rod 14 is moved to the initial position, so that the first rack rod 14 is disengaged from the first gear 13 , thereby releasing the fixing of the driving rod 8 and the connecting plate 6 .

[0024] A protection plate 15 is provided below the cross bar 10 . The protection plate 15 is provided on the side wall of the support plate 5 . The end of the protection plate 15 is slidably connected to the connecting plate 6 .

[0025] like Figure 3 Figure 4 as well as Fig. 9 As shown: By setting the protective plate 15, when the connecting plate 6 slides along the supporting plate 5, the connecting plate 6 will also slide along the protective plate 15, and the two sides of the connecting plate 6 are wrapped and restricted by the protective plate 15. During the punching process, the connecting plate 6 can be supported by the protective plate 15, thereby assisting in resisting the impact force exerted on the connecting plate 6, reducing the force exerted on the connecting plate 6, and thus avoiding deformation and breakage of the connecting plate 6.

[0026] A pressure group is provided on the protection plate 15, and the pressure group is used to apply downward pressure in the opposite direction of the connecting plate 6 and the auxiliary punch rod 4 to prevent the connecting plate 6 from being deformed due to stress concentration; The pressure group includes a slide bar 16 and a contact block 18. The slide bar 16 is slidably connected to the bottom of the cross bar 10 in the left and right directions, the cross bar 10 is slidably connected to the support plate 5 in the vertical direction, the protective plate 15 is slidably connected to the side wall of the support plate 5, the bottom end of the slide bar 16 is rotatably connected to a push rod 17, the top end of the push rod 17 is rotatably connected to the side wall of the protective plate 15, the contact block 18 is wedge-shaped and fixedly connected to the connecting plate 6, and an inclined surface matching the contact block 18 is provided at the end of the protective plate 15.

[0027] like Figure 3 , Figure 4 Figure 7-Figure 9 As shown: During the adjustment process, the protective plate 15 is pushed so that the protective plate 15 pushes the connecting plate 6 to move along the supporting plate 5. At this time, the protective plate 15 moves along with the connecting plate 6, so that when the connecting plate 6 moves to any position, the protective plate 15 can contact with the contact block 18 on the connecting plate 6, thereby enhancing the assistance when the connecting plate 6 is subjected to impact force; During the movement of the protective plate 15, the sliding rod 16 is driven by the push rod 17 to slide along the bottom of the cross bar 10. After the connecting plate 6 stops moving, the first rack rod 14 is pushed to slide along the cross bar 10 to fix the two first gears 13, and then the holes can be punched. During the punching process, the impact force received by the connecting plate 6 will tend to swing the connecting plate 6 upwards, and the protective plate 15 can assist in resisting this part of the impact force, and the inclined surface of the protective plate 15 is kept in contact with the contact block 18. When the connecting plate 6 has a tendency to bend upward, the connecting plate 6 must drive the driving rod 8 to rise. At this time, the top of the driving rod 8 will drive the cross bar 10 to slide up along the supporting plate 5 through the limit rod 9, the two support rods 11 and the first gear 13. Although the supporting plate 5 is slidably connected to the cross bar 10, if the cross bar 10 slides up, it will push the protective plate 15 to one side through the push rod 17, so that the inclined surface on the protective plate 15 contacts the inclined side wall of the contact block 18 and gives the connecting plate 6 a secondary block and reverse downward pressure, thereby ensuring the stability of the connecting plate 6 during punching; After the punching is completed, the first rack rod 14 is pushed out again to the position where it meshes with the first gear 13, so that the connecting plate 6 and the driving rod 8 can be reset.

[0028] Magnets are embedded on the inclined surfaces of the contact block 18 and the protective plate 15 (not specifically shown in the prior art).

[0029] The mutual attraction of the magnets facilitates the synchronous movement of the protection plate 15 and the connecting plate 6 .

[0030] A second rack rod 19 is fixedly connected to the top of the connecting plate 6 , a second gear 20 is meshed on the second rack rod 19 , and the second gear 20 is rotatably connected to the supporting plate 5 .

[0031] A knob 21 is fixedly connected to the rotating shaft of the second gear 20 .

[0032] like Figure 5 and Figure 6 As shown: The second gear 20 is driven to rotate by rotating the knob 21, so that the second gear 20 and the connecting plate 6 move synchronously, and then the protective plate 15 is driven to move by the magnet, so as to facilitate the control of the moving distance of the connecting plate 6.

[0033] A paddle 22 is fixedly connected to the side wall of the first rack rod 14 . The paddle 22 is used to drive the first rack rod 14 to slide along the cross bar 10 .

[0034] like Figure 7 and Figure 8 As shown: the paddle 22 is used to conveniently control the forward and backward sliding of the first rack rod 14 .

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching device for hardware processing, comprising a base (1), a cylinder (2), a main punching rod (3) and two auxiliary punching rods (4), characterized in that: The cylinder (2) is fixedly connected to the base (1); the bottom end of the cylinder (2) is fixedly connected to a support plate (5); the main punching rod (3) is fixedly connected to the middle of the bottom end of the support plate (5); adjustment groups are provided on both sides of the support plate (5); and the two auxiliary punching rods (4) are respectively located below the two adjustment groups; The adjustment group comprises a connecting plate (6) and a vertical rod (7), a strip groove (23) is provided inside the vertical rod (7), the top end of the auxiliary punch rod (4) is fixedly connected to the bottom end of the connecting plate (6), the vertical rod (7) is fixedly connected to the top end of the support plate (5) and is located on one side of the connecting plate (6), the connecting plate (6) and the support plate (5) are slidably connected in the horizontal direction, a driving rod (8) is rotatably connected to the connecting plate (6), the top end of the driving rod (8) is rotatably connected to a limiting rod (9), the limiting rod (9) is slidably connected to the strip groove (23), and a locking group is arranged below the limiting rod (9), the locking group is used to fix the connecting plate (6) and the limiting rod (9) after the connecting plate (6) slides outwards a certain distance.

2. A punching device for hardware processing according to claim 1, characterized in that: The locking group comprises a cross bar (10) and two support bars (11), wherein the cross bar (10) is located in front of the support plate (5) and the connecting plate (6), and the two support bars (11) are rotatably connected to the left and right sides of the side wall of the limiting rod (9), respectively; the side wall of the cross bar (10) is provided with a limiting groove (12), the bottom ends of the two support bars (11) are both located inside the limiting groove (12) and can slide along the limiting groove (12) when the limiting rod (9) descends, and the bottom ends of the two support bars (11) are fixedly connected to a first gear (13), and a first rack rod (14) is commonly provided at a position directly below the two first gears (13) and close to the front end of the cross bar (10), and the first rack rod (14) is slidably connected to the cross bar (10) in the front-rear direction.

3. A punching device for hardware processing according to claim 2, characterized in that: A protective plate (15) is provided below the cross bar (10), the protective plate (15) being arranged on the side wall of the support plate (5), and the end of the protective plate (15) being slidably connected to the connecting plate (6).

4. A punching device for hardware processing according to claim 3, characterized in that: The protective plate (15) is provided with a pressure group, which is used to apply downward pressure in the opposite direction of the connecting plate (6) and the auxiliary punching rod (4) to prevent the connecting plate (6) from being deformed due to stress concentration; The pressure group comprises a sliding rod (16) and a contact block (18), wherein the sliding rod (16) is slidably connected to the bottom of the cross rod (10) in the left-right direction, the cross rod (10) is slidably connected to the support plate (5) in the vertical direction, the protective plate (15) is slidably connected to the side wall of the support plate (5), the bottom end of the sliding rod (16) is rotatably connected to a push rod (17), the top end of the push rod (17) is rotatably connected to the side wall of the protective plate (15), the contact block (18) is wedge-shaped and is fixedly connected to the connecting plate (6), and the end of the protective plate (15) is provided with an inclined surface matching the contact block (18).

5. A punching device for hardware processing according to claim 4, characterized in that: Magnets are embedded on the inclined surfaces of the contact block (18) and the protective plate (15).

6. A punching device for hardware processing according to claim 4, characterized in that: A second rack rod (19) is fixedly connected to the top end of the connecting plate (6), a second gear (20) is meshed on the second rack rod (19), and the second gear (20) is rotatably connected to the supporting plate (5).

7. A punching device for hardware processing according to claim 6, characterized in that: A knob (21) is fixedly connected to the rotating shaft of the second gear (20).

8. A punching device for hardware processing according to claim 7, characterized in that: A paddle (22) is fixedly connected to the side wall of the first rack rod (14), and the paddle (22) is used to drive the first rack rod (14) to slide along the cross rod (10).

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