An adjustable punching device for processing automobile sheet metal parts

Abstract

The invention relates to the technical field of punching devices, and proposes an adjustable punching device for processing automobile sheet metal parts. The device has a relatively small overall size, and its position can be adjusted relative to the automobile sheet metal parts during operation. For automobile sheet metal parts of larger sizes, the device can be adjusted relative to the automobile sheet metal parts to achieve the punching operation of holes at different positions on the automobile sheet metal parts of larger sizes. The operation is relatively labor-saving, the working space can be adjusted, the versatility is good, the adjustment operation is relatively labor-saving, and the portability is good. The device comprises a body, a punching structure and an auxiliary structure. The punching structure comprises an upper functional frame and a driving motor. The upper functional frame is fixedly connected to the inner top wall of the body, a lifting frame is slidably connected to the upper functional frame, an operating sleeve is rotatably connected to the lifting frame, a driving sleeve is threadedly connected to the operating sleeve, and a drill bit is detachably installed on the driving sleeve through a feed shaft.

Description

Technical Field

[0001] The invention relates to the technical field of punching devices, and in particular to an adjustable punching device for processing automobile sheet metal parts. Background Art

[0002] As we all know, the body structure of a car contains a large number of car sheet metal parts. Sheet metal is a comprehensive cold processing technology for metal sheets, including shearing, punching / cutting / compounding, folding, welding, riveting, splicing and forming, etc. Its notable feature is that the thickness of the same part is consistent. Automobile sheet metal parts are products processed by sheet metal technology. Since there are a large number of lines and pipelines inside the car, there will be a large number of holes on the automobile sheet metal parts. In order to facilitate the processing of holes on automobile sheet metal parts, an adjustable punching device for automobile sheet metal processing is proposed.

[0003] After searching, the Chinese invention patent with publication number CN112355345A published on February 12, 2021 discloses a punching device for automobile sheet metal parts that is convenient for replacing drill bits. It is roughly described as comprising a threaded column, a support block and a chuck. A nut is connected through the surface of the threaded column, a docking block is arranged on the top of the nut, a fixing block is arranged on the top of the docking block, a rotating shaft is embedded in the interior of the fixing block, a card cover is arranged on one side of the rotating shaft, an organic body is arranged at the bottom of the card cover, a support column is connected through the interior of the body, and a gear is arranged on one side of the support column. The gear bar has a bevel gear connected to one side, and one end of the bevel gear is fixedly connected to a driving shaft. When in use, when using the automobile sheet metal punching device that is convenient for replacing drill bits, first rotate the nut counterclockwise, the nut and the threaded column are gradually separated, and then the threaded column is rotated by the rotating shaft to separate the threaded column from the docking block, and then the card cover is taken out to the top of the support column, so that the card cover is disassembled, so that the internal maintenance of the machine body can be more conveniently performed, and the wear of the parts inside the machine body after the motor is used for a long time can be avoided, resulting in damage to the equipment, and the driving shaft is rotated. The bevel gear is driven to rotate, and the bevel gear and the gear bar are meshed with each other, so that the support column moves up and down, and the support column drives the longitudinal vertical height of the drill bit to change, so that it is more convenient to adjust the height of the drill bit to punch the product when the equipment is used, and push the slider to the top, so that the slider slides on the groove, and the slider squeezes the adjustment spring, and the plug block is moved by adjusting the elasticity of the spring, and then the drill bit is slid through the slide groove to separate the drill bit from the slide groove, so that the drill bit can be replaced more conveniently, and the connecting column is docked with the docking column, and then one end of the card block is pressed, and an elastic linkage structure is formed by the connecting column, the connecting plate, the fixing spring, the card block and the docking column, so that the connecting column passes through the docking column, and then the card block is loosened until the card block and the inside of the docking column are matched with each other, so that the chuck can be installed on the docking column more conveniently. When the device processes the product, the turntable is rotated, and the turntable drives the first screw rod and the second screw rod to rotate, and the first screw rod, the second screw rod and the docking column form a threaded linkage structure, so that the two docking columns are close to each other, and the docking column drives the chuck to be close to each other, so that the product can be clamped and positioned more conveniently.

[0004] Although the above-mentioned existing technical solutions can be applied to the punching processing of automobile sheet metal parts, due to the different structures and shapes of automobile sheet metal parts and the large and small sizes of automobile sheet metal parts, the punching processing operation of the structure of some large-sized automobile sheet metal parts is more laborious, has poor versatility and low portability. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides an adjustable punching device for processing automobile sheet metal parts, which has a relatively small overall size. During operation, the position of the adjustable punching device for processing automobile sheet metal parts can be adjusted relative to the automobile sheet metal parts. For automobile sheet metal parts of larger sizes, the adjustable punching device for processing automobile sheet metal parts can be adjusted relative to the automobile sheet metal parts to achieve the punching operation of holes in different positions on automobile sheet metal parts of larger sizes. The operation is relatively labor-saving, and the working space can be adjusted, with good versatility. At the same time, the adjustment operation is relatively labor-saving and the portability is good.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adjustable punching device for automobile sheet metal processing, comprising a machine body, a punching structure and an auxiliary structure, wherein the punching structure comprises an upper functional frame and a driving motor, wherein the upper functional frame is fixedly connected to the inner top wall of the machine body, a lifting frame is slidably connected to the upper functional frame, an operating sleeve is rotatably connected to the lifting frame, a driving sleeve is threadedly connected to the operating sleeve, a feed shaft is rotatably connected to the driving sleeve, a drill bit is detachably mounted on the bottom end of the feed shaft, the driving motor is mounted on the top end of the machine body, and the driving motor drives the feed shaft through a transmission structure. The structure realizes the driving of the feed shaft, the bottom end of the driving sleeve is fixedly connected with a guide cylinder, the feed shaft is rotatably connected in the guide cylinder, and the guide cylinder is slidably connected to the lifting frame up and down through a hole frame, an auxiliary clamping structure is installed on the guide cylinder, and an operating structure for driving the lifting cylinder up and down is installed in the machine body, the auxiliary structure includes a lower functional frame and a threaded rod, the lower functional frame is connected to the inner bottom wall of the machine body, the lower functional frame is slidably connected with the lifting cylinder up and down, the threaded rod is rotatably connected in the machine body, a threaded plate is threadedly connected to the threaded rod, and the threaded plate is fixedly connected to the lifting cylinder.

[0009] On the basis of the above scheme, the transmission structure includes an upper driving rod and a lower driving tube, the upper driving rod is connected to the output shaft of the driving motor through a universal coupling, the upper driving rod is connected to the machine body, the bottom end of the lower driving tube is fixedly connected to the top end of the feed shaft, the upper driving rod is inserted into the lower driving tube, a transmission rod is fixedly connected to the lower driving tube, a groove is provided on the upper driving rod, and the transmission rod is located in the groove.

[0010] Preferably, based on the above scheme, the auxiliary clamping structure includes a threaded ring and an auxiliary pressure ring, the threaded ring is threadedly connected to the guide cylinder, the auxiliary pressure ring is located below the threaded ring, and the top end of the auxiliary pressure ring is fixedly connected to a plurality of inclined tension springs, and the top ends of the plurality of inclined tension springs are fixedly connected to the bottom end of the threaded ring.

[0011] Further on the basis of the above scheme, the operating structure includes a driving plate, the driving plate is fixedly connected to the lifting frame and the hole frame, a sliding groove is provided in the machine body, the right end of the driving plate is slidably connected in the sliding groove, the top of the driving plate is fixedly connected to two vertical rods, two vertical holes are provided on the machine body, the two vertical rods are respectively slidably fitted in the two vertical holes, the top ends of the two vertical rods are fixedly connected to hand rods, the bottom ends of the hand rods are fixedly connected to two elastic springs, and the two elastic springs are respectively sleeved on the two vertical rods.

[0012] Further on the basis of the above scheme, through openings are arranged on the side walls of the upper functional frame and the side walls of the lifting frame, and the operating sleeve extends through the through openings to the front and rear ends of the upper functional frame.

[0013] Further on the basis of the above solution, the bottom end of the lifting frame and the top end of the lifting cylinder are fixedly connected with limit rings, and the two limit rings are matched with the upper functional frame and the lower functional frame respectively.

[0014] As a further improvement of the above scheme, the top end of one of the two limiting rings fixedly connected to the lifting cylinder and the bottom end of the auxiliary pressure ring are both provided with elastic pressing surfaces.

[0015] As a further improvement of the above solution, a driving cap is fixedly connected to the bottom end of the threaded rod.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an adjustable punching device for automobile sheet metal processing, which has the following beneficial effects:

[0018] 1. In the present invention, the design of the machine body facilitates the relative installation of the punching structure and the auxiliary structure, and the overall size is small. Through the design of the punching structure, the position of the adjustable punching device for automobile sheet metal processing can be adjusted relative to the automobile sheet metal during operation. For larger-sized automobile sheet metal parts, the adjustable automobile sheet metal processing punching device can be adjusted relative to the automobile sheet metal parts to achieve the punching operation of holes in different positions on larger-sized automobile sheet metal parts. The operation is relatively labor-saving, and the feed depth of the punching can be adjusted, which has good practicality.

[0019] 2. In the present invention, the design of the auxiliary structure facilitates the cooperation with the drilling operation of the drill bit, realizes the auxiliary support for the drilling operation position of the automobile sheet metal, thereby ensuring the drilling effect, and at the same time can cooperate with the drill bit to realize the position adjustment of the lifting cylinder relative to the lower functional frame, so that the working space can be adjusted, and the versatility is good.

[0020] 3. In the present invention, the cooperation of the operating sleeve, the driving sleeve and the guide cylinder facilitates the adjustment of the position of the feed shaft and the lifting frame. The cooperation of the threaded rod and the threaded plate facilitates the adjustment of the position of the lifting cylinder in the lower functional frame. The adjustment operation is relatively labor-saving and has good portability. The design of the operating structure facilitates the position feeding of the drill bit relative to the machine body, thereby realizing the drilling operation of the drill bit on the automobile sheet metal parts. The design of the auxiliary clamping structure facilitates the auxiliary clamping and positioning of the drill bit on the automobile sheet metal parts during the drilling operation, thereby ensuring the stability of the relative position between the drill bit and the automobile sheet metal parts during the drilling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0023] Figure 3 It is a schematic diagram of the exploded three-dimensional structure of the lower functional frame, threaded rods and lifting cylinder of the present invention;

[0024] Figure 4 It is a schematic diagram of the exploded three-dimensional structure of the upper functional frame, the lifting frame and the operating cover of the present invention;

[0025] Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle;

[0026] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the upper functional frame and the lifting frame of the present invention;

[0027] Figure 7 It is a partially exploded three-dimensional structural schematic diagram of the driving plate, the vertical rod and the hand rod of the present invention;

[0028] Figure 8 It is a partially exploded three-dimensional structural schematic diagram of the upper driving rod, the lower driving tube and the universal coupling of the present invention.

[0029] In the figure: 1. body; 2. upper functional frame; 3. lifting frame; 4. operating sleeve; 5. driving sleeve; 6. feed shaft; 7. drill bit; 8. guide cylinder; 9. lower functional frame; 10. threaded rod; 11. lifting cylinder; 12. threaded plate; 13. upper driving rod; 14. lower driving tube; 15. universal coupling; 16. transmission rod; 17. threaded ring; 18. auxiliary pressure ring; 19. inclined tension spring; 20. driving plate; 21. vertical rod; 22. hand lever; 23. elastic spring; 24. limit ring; 25. elastic pressing surface; 26. driving cap. DETAILED DESCRIPTION

[0030] Example

[0031] See also Figure 1-8 , an adjustable punching device for automobile sheet metal processing, comprising a body 1, a punching structure and an auxiliary structure. The design of the body 1 facilitates the relative installation of the punching structure and the auxiliary structure, and the overall size is small. The punching structure comprises an upper functional frame 2 and a driving motor. The upper functional frame 2 is fixedly connected to the inner top wall of the body 1, and a lifting frame 3 is slidably connected to the upper functional frame 2, and an operating sleeve 4 is rotatably connected to the lifting frame 3. Through holes are provided on the side walls of the upper functional frame 2 and the side walls of the lifting frame 3. The operating sleeve 4 extends through the through holes to the front and rear ends of the upper functional frame 2, which is convenient for driving and adjusting the operating groove. A driving sleeve 5 is threadedly connected to the operating sleeve 4, and a feed shaft 6 is rotatably connected to the driving sleeve 5. A drill bit 7 is detachably installed on the bottom end of the feed shaft 6. Through the design of the punching structure, the position of the adjustable punching device for automobile sheet metal processing can be adjusted relative to the automobile sheet metal during operation. For larger sizes The automobile sheet metal parts can be adjusted relative to the automobile sheet metal parts by the adjustable automobile sheet metal processing punching device to realize the punching operation of holes at different positions on automobile sheet metal parts of larger sizes. The operation is relatively labor-saving. At the same time, the feeding depth of the punching can be adjusted, and the practicality is good. The driving motor is installed at the top of the body 1, and the driving motor drives the feed shaft 6 through a transmission structure. The transmission structure includes an upper driving rod 13 and a lower driving tube 14. The upper driving rod 13 is connected to the output shaft of the driving motor through a universal coupling 15. The upper driving rod 13 is connected to the body 1, and the bottom end of the lower driving tube 14 is fixedly connected to the top of the feed shaft 6. The upper driving rod 13 is inserted into the lower driving tube 14, and a transmission rod 16 is fixedly connected to the lower driving tube 14. A groove is provided on the upper driving rod 13, and the transmission rod 16 is located in the groove, so as to realize the power transmission between the driving motor and the feed shaft 6, and at the same time, the up and down movement of the feed shaft 6 can be ensured.

[0032] It should be further explained that the bottom end of the driving sleeve 5 is fixedly connected with a guide cylinder 8, the feed shaft 6 is rotatably connected in the guide cylinder 8, and the guide cylinder 8 is slidably connected to the lifting frame 3 up and down through the hole frame. Through the cooperation of the operating sleeve 4, the driving sleeve 5 and the guide cylinder 8, it is convenient to adjust the position of the feed shaft 6 and the lifting frame 3. An auxiliary clamping structure is installed on the guide cylinder 8, and the auxiliary clamping structure includes a threaded ring 17 and an auxiliary pressure ring 18. The threaded ring 17 is threadedly connected to the guide cylinder 8, and the auxiliary pressure ring 18 is located below the threaded ring 17, and the top of the auxiliary pressure ring 18 is fixedly connected with a plurality of inclined tension springs 19, and the top ends of the plurality of inclined tension springs 19 are fixedly connected to the bottom end of the threaded ring 17. Through the design of the auxiliary clamping structure, it is convenient for the drill bit 7 to drill relative to the automobile sheet metal. During the drilling operation, the auxiliary pressing and positioning of the automobile sheet metal parts is performed to ensure the stability of the relative position between the drill bit 7 and the automobile sheet metal parts during the drilling operation. An operating structure for driving the lifting cylinder 11 up and down is installed in the machine body 1, and the operating structure includes a driving plate 20, which is fixedly connected to the lifting frame 3 and the hole frame. A sliding groove is provided in the machine body 1, and the right end of the driving plate 20 is slidably connected in the sliding groove. The top of the driving plate 20 is fixedly connected to two vertical rods 21, and two vertical holes are provided on the machine body 1. The two vertical rods 21 are respectively slidably matched in the two vertical holes. The top ends of the two vertical rods 21 are fixedly connected to a hand rod 22, and the bottom ends of the hand rod 22 are fixedly connected to two elastic springs 23. The two elastic springs 23 are respectively sleeved on the two vertical rods 2 1, through the design of the operating structure, it is convenient to realize the position feeding of the drill bit 7 relative to the machine body 1, so as to realize the drilling operation of the drill bit 7 on the automobile sheet metal parts. The auxiliary structure includes a lower functional frame 9 and a threaded rod 10. The lower functional frame 9 is connected to the inner bottom wall of the machine body 1. A lifting cylinder 11 is slidably connected to the lower functional frame 9. The threaded rod 10 is rotatably connected to the machine body 1. A threaded plate 12 is threadedly connected to the threaded rod 10. Through the cooperation of the threaded rod 10 and the threaded plate 12, it is convenient to adjust the position of the lifting cylinder 11 in the lower functional frame 9. The adjustment operation is relatively labor-saving and has good portability. The bottom end of the threaded rod 10 is fixedly connected with a driving cap 26, which is convenient for the driving operation of the threaded rod 10. The threaded plate 12 is fixedly connected in the lifting cylinder 11. Through the auxiliary structure, the lower functional frame 9 is connected to the inner bottom wall of the machine body 1. The ... The structural design is convenient for cooperating with the drilling operation of the drill bit 7 to realize auxiliary support for the drilling operation position of the automobile sheet metal parts, thereby ensuring the drilling effect. At the same time, the drill bit 7 can be cooperated with to realize the position adjustment of the lifting cylinder 11 relative to the lower functional frame 9, so that the working space can be adjusted, and the versatility is good. The bottom end of the lifting frame 3 and the top end of the lifting cylinder 11 are fixedly connected to the limiting ring 24. The two limiting rings 24 are matched with the upper functional frame 2 and the lower functional frame 9 respectively, limiting the limit adjustment position of the lifting frame 3 relative to the upper functional frame 2, and the limit adjustment position of the lifting cylinder 11 relative to the lower functional frame 9. The top end of the limiting ring 24 fixedly connected to the lifting cylinder 11 and the bottom end of the auxiliary pressure ring 18 of the two limiting rings 24 are both provided with elastic pressing surfaces 25.Achieve fine-tuning of the clamping surface relative to the sheet metal surface of the automobile sheet metal part to improve the fitting effect of the clamping surface.

[0033] The drive motor and universal coupling 15 in this embodiment are conventional devices purchased on the market and known to those skilled in the art, and can also be customized according to actual needs. In this patent, we only use them and do not improve their structure and function. For technicians in this field, their setting method, installation method and electrical connection method only need to be debugged according to the requirements of their instruction manual, and will not be described in detail here.

[0034] In summary, the working process of the adjustable punching device for automobile sheet metal processing is as follows: when in use, first adjust the relative position between the drill bit 7 and the lifting cylinder 11 according to the automobile sheet metal, so that the space between the two can not only ensure the passage of the automobile sheet metal, but also be suitable for the feeding operation of the drill bit 7. During the adjustment of the feed shaft 6, the operating sleeve 4 is rotated to rotate the operating sleeve 4 relative to the lifting frame 3, so that the driving sleeve 5 in the operating sleeve 4 moves relative to the hole frame. The position movement of the driving sleeve 5 drives the guide cylinder 8, the feed shaft 6 and the drill bit 7 to move synchronously. During the adjustment of the lifting cylinder 11, the threaded rod 10 is rotated relative to the body 1 by rotating the driving cap 26, thereby realizing the lifting and lowering of the threaded plate 12 in the lower functional frame 9. Adjustment. After the adjustment is completed, hold the body 1 and adjust the relative position of the body 1 relative to the automobile sheet metal. After the position adjustment of the body 1 is completed, the elastic pressing surface 25 on the limit ring 24 on the lifting cylinder 11 is in contact with the automobile sheet metal. Then, the drive motor power is turned on, and the drive motor drives the drill bit 7 to rotate. Finally, the hand lever 22 is pressed relative to the body 1, so that the hand lever 22 overcomes the elastic spring 23 and moves close to the body 1. The movement of the hand lever 22 drives the vertical rod 21 to move, and the movement of the vertical rod 21 drives the driving plate 20 to move. The movement of the driving plate 20 drives the hole frame and the lifting frame 3 to move at the same time. The movement of the lifting frame 3 drives the operating sleeve 4 to move. The movement of the operating sleeve 4 drives the feed shaft 6 to move through the driving sleeve 5, thereby realizing the feeding operation of the drill bit 7.

Claims

1. An adjustable punching device for automobile sheet metal processing, comprising a body (1), characterized in that: The drilling structure also includes a drilling structure and an auxiliary structure, wherein the drilling structure includes an upper functional frame (2) and a driving motor, wherein the upper functional frame (2) is fixedly connected to the inner top wall of the machine body (1), a lifting frame (3) is slidably connected to the upper and lower sides of the upper functional frame (2), an operating sleeve (4) is rotatably connected to the lifting frame (3), the operating sleeve (4) is internally threadedly connected to a driving sleeve (5), a feed shaft (6) is rotatably connected to the driving sleeve (5), a drill bit (7) is detachably mounted on the bottom end of the feed shaft (6), the driving motor is mounted on the top end of the machine body (1), and the driving motor drives the feed shaft (6) through a transmission structure, the bottom end of the driving sleeve (5) is fixedly connected to a guide cylinder (8), and the The feed shaft (6) is rotatably connected in the guide cylinder (8), and the guide cylinder (8) is slidably connected to the lifting frame (3) through a hole frame. An auxiliary clamping structure is installed on the guide cylinder (8). An operating structure for driving the lifting cylinder (11) up and down is installed in the machine body (1). The auxiliary structure includes a lower functional frame (9) and a threaded rod (10). The lower functional frame (9) is connected to the inner bottom wall of the machine body (1). The lifting cylinder (11) is slidably connected to the lower functional frame (9). The threaded rod (10) is rotatably connected in the machine body (1). A threaded plate (12) is threadedly connected to the threaded rod (10), and the threaded plate (12) is fixedly connected in the lifting cylinder (11).

2. The adjustable punching device for automobile sheet metal processing according to claim 1, characterized in that: The transmission structure comprises an upper driving rod (13) and a lower driving tube (14); the upper driving rod (13) is connected to the output shaft of the driving motor through a universal coupling (15); the upper driving rod (13) is connected to the machine body (1); the bottom end of the lower driving tube (14) is fixedly connected to the top end of the feed shaft (6); the upper driving rod (13) is inserted into the lower driving tube (14); a transmission rod (16) is fixedly connected to the lower driving tube (14); a groove is provided on the upper driving rod (13); and the transmission rod (16) is located in the groove.

3. The adjustable punching device for automobile sheet metal processing according to claim 2, characterized in that: The auxiliary clamping structure comprises a threaded ring (17) and an auxiliary pressure ring (18), wherein the threaded ring (17) is threadedly connected to the guide cylinder (8), the auxiliary pressure ring (18) is located below the threaded ring (17), and the top end of the auxiliary pressure ring (18) is fixedly connected to a plurality of inclined springs (19), and the top ends of the plurality of inclined springs (19) are fixedly connected to the bottom end of the threaded ring (17).

4. The adjustable punching device for automobile sheet metal processing according to claim 3, characterized in that: The operating structure comprises a driving plate (20), wherein the driving plate (20) is fixedly connected to the lifting frame (3) and the hole frame, a sliding groove is arranged in the body (1), the right end of the driving plate (20) is slidably connected in the sliding groove, the top end of the driving plate (20) is fixedly connected to two vertical rods (21), the body (1) is provided with two vertical holes, the two vertical rods (21) are respectively slidably matched in the two vertical holes, the top ends of the two vertical rods (21) are fixedly connected to hand rods (22), the bottom ends of the hand rods (22) are fixedly connected to two elastic springs (23), and the two elastic springs (23) are respectively sleeved on the two vertical rods (21).

5. The adjustable punching device for automobile sheet metal processing according to claim 4, characterized in that: Through holes are provided on the side walls of the upper functional frame (2) and the side walls of the lifting frame (3), and the operating sleeve (4) extends through the through holes to the front and rear ends of the upper functional frame (2).

6. The adjustable punching device for automobile sheet metal processing according to claim 5, characterized in that: The bottom end of the lifting frame (3) and the top end of the lifting cylinder (11) are both fixedly connected to limit rings (24), and the two limit rings (24) are matched with the upper functional frame (2) and the lower functional frame (9) respectively.

7. The adjustable punching device for automobile sheet metal processing according to claim 6, characterized in that: The top end of one of the two limiting rings (24) fixedly connected to the lifting cylinder (11) and the bottom end of the auxiliary pressure ring (18) are both provided with elastic pressing surfaces (25).

8. The adjustable punching device for automobile sheet metal processing according to claim 7, characterized in that: A driving cap (26) is fixedly connected to the bottom end of the threaded rod (10).

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