Metal plate drilling device

Abstract

The utility model discloses a metal plate drilling device which comprises an electric drill body, a drill bit, a mounting sleeve detachably and fixedly assembled on the electric drill body and a clamping unit connected with the mounting sleeve in a sliding mode in the axis direction of the drill bit through a sliding connection component. The clamping unit comprises a clamping plate, an adjusting plate parallel to the clamping plate, a coarse adjusting mechanism used for adjusting the distance between the clamping plate and the adjusting plate, a clamping arm slidably connected with the adjusting plate in the sliding direction of the clamping unit, and a force transmission block fixedly installed on the side, away from the clamping plate, of the clamping arm and slidably penetrating through the adjusting plate. A spiral cam which is rotationally installed on the side, away from a clamping arm, of an adjusting plate and can make contact with a force transmission block and a shifting arm fixedly connected with the spiral cam are rotationally installed through an installation mechanism, a clamping plate and the adjusting plate tightly clamp a metal plate from the two sides, and an electric drill body is started to drive a drill bit to rotate and push the electric drill body to move close to the metal plate; the function of the sliding connection component is to prevent the drill bit from slipping and inclining in the drilling process.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, and specifically, to a sheet metal drilling device. Background Art

[0002] A telescopic belt conveyor is a common belt conveyor with a telescopic mechanism added, enabling the belt conveyor to freely expand and contract in the length direction. Users can adjust the buttons according to their requirements to control the length of the conveyor at any time. It greatly shortens the distance for manual back-and-forth material handling, reduces the loading and unloading time, lowers the labor intensity, reduces damage to goods, reduces the loading and unloading cost, and improves work efficiency. The telescopic belt conveyor can convey materials in both directions.

[0003] During the manufacturing process, sheet metal needs to go through processes such as laser cutting, bending, welding, grinding, painting, and assembly. When performing laser cutting, not only the sheet metal of the required shape is cut out, but also mounting holes, mounting grooves, etc. are cut out on the sheet metal. This is the sheet metal required for the manufacture of a conventional telescopic belt conveyor. However, during assembly, due to different usage environments for each customer, the installation positions of the control box and control buttons are different. At this time, additional mounting holes need to be drilled on the sheet metal. After making marks on the sheet metal, directly drilling with an electric drill is the fastest drilling method. Since there is no need to move the sheet metal, the drilling operation can be carried out on the sheet metal in place. However, when drilling just starts, there will be a problem of the drill bit slipping, which will cause inaccurate drilling positions and also affect the drilling efficiency. Therefore, a sheet metal drilling device needs to be designed. Summary of the Utility Model

[0004] Aiming at the above technical problems, the purpose of the utility model is to overcome the problem of slipping when an electric drill directly drills on sheet metal in the prior art.

[0005] To achieve the above purpose, the utility model provides a sheet metal drilling device, including: an electric drill body, a drill bit assembled on the electric drill body, a mounting sleeve detachably and fixedly assembled on the electric drill body, and a clamping unit slidably connected to the mounting sleeve along the axis direction of the drill bit through a sliding connection member;

[0006] The clamping unit includes a clamping plate, an adjusting plate arranged parallel to the clamping plate, a coarse adjustment mechanism assembled on the clamping plate for adjusting the distance between the clamping plate and the adjusting plate, a clamping arm located between the clamping plate and the adjusting plate and slidably connected to the adjusting plate along the sliding direction of the clamping unit, a force transmission block fixedly installed on the side of the clamping arm away from the clamping plate and slidably passing through the adjusting plate, a spiral cam rotatably installed on the side of the adjusting plate away from the clamping arm through an installation mechanism and capable of contacting the force transmission block, and a dial arm fixedly connected to the spiral cam.

[0007] Preferably, both ends of the clamp arm are fixedly connected with a first guide rod that slides through the adjustment plate, the end of the first guide rod away from the clamp arm is fixedly sleeved with a first limiting ring, and the first guide rod is sleeved with a return spring whose two ends respectively contact the first limiting ring and the adjustment plate.

[0008] Preferably, the coarse adjustment mechanism is located on the side of the clamping arm away from the drill bit, and a first threaded seat is fixedly installed on the adjustment plate and is located on the side of the coarse adjustment mechanism away from the clamping arm. The first threaded seat is threadedly connected with a first adjustment bolt whose end can abut against the clamping plate.

[0009] Preferably, the coarse adjustment mechanism includes at least one second guide rod fixedly connected to the adjustment plate and sliding through the clamping plate, a second threaded seat fixedly mounted on the clamping plate, and a second adjustment bolt threadedly passing through the second threaded seat and with its end axially connected to the adjustment plate, and a second limit ring is fixedly mounted on the end of the second guide rod away from the adjustment plate.

[0010] Preferably, the sliding connection component includes a plurality of third guide rods fixedly connected to the clamping plate and parallel to the drill bit, and a plurality of connecting arms fixedly connected to the mounting sleeve, the end of the connecting arm away from the mounting sleeve is slidingly sleeved on the corresponding third guide rod, and the length direction of the connecting arm is consistent with the corresponding radial direction of the drill bit.

[0011] Preferably, the mounting sleeve comprises a pair of half-ring sleeves detachably connected by mounting bolts, and a plurality of connecting arms are fixedly connected to the same half-ring sleeve.

[0012] Preferably, the mounting mechanism comprises at least one shaft seat fixedly mounted on the adjusting plate and a rotating shaft connected to the shaft seat and fixedly connected to the spiral cam.

[0013] According to the above technical solution, the sheet metal drilling device provided by the utility model has the following beneficial effects when in use: first, the clamping plate and the adjusting plate tightly clamp the sheet metal from both sides, the electric drill body is started to drive the drill bit to rotate, and the electric drill body is pushed to move close to the sheet metal, so that a hole can be drilled on the sheet metal, and the function of the sliding connection component is to prevent the drill bit from slipping and tilting when drilling;

[0014] Secondly, the sheet metal can be clamped and released by turning the lever arm to drive the spiral cam to rotate, which is simple and quick to operate;

[0015] Thirdly, when the distance between the clamping plate and the adjusting plate is adjusted by the coarse adjustment mechanism, the clamping unit has not yet been clamped on the sheet metal, which also facilitates the operator to adjust the distance between the two.

[0016] Other features and advantages of the utility model will be described in detail in the subsequent specific implementation mode; and the parts not involved in the utility model are the same as the prior art or can be implemented by using the prior art. Brief Description of the Drawings

[0017] The drawings are used to provide a further understanding of the present utility model and form a part of the specification. Together with the following specific embodiments, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0018] Figure 1 is a schematic diagram of the use of a sheet metal drilling device provided by the present utility model;

[0019] Figure 2 is a partial three-dimensional structural diagram of a sheet metal drilling device provided by the present utility model;

[0020] Figure 3 is a sheet metal drilling device provided by the present utility model Figure 2 schematic diagram along the A perspective;

[0021] Figure 4 is a partial three-dimensional structural diagram of the clamping unit of a sheet metal drilling device provided by the present utility model.

[0022] Description of the Reference Numerals

[0023] 1. Electric drill body; 2. Drill bit; 3. Mounting sleeve; 4. Clamping plate; 5. Adjusting plate; 6. Clamping arm; 7. Force transmission block; 8. Spiral cam; 9. Dialing arm; 10. Sheet metal; 11. First guide rod; 12. First limit ring; 13. Return spring; 14. First threaded seat; 15. First adjusting bolt; 16. Second guide rod; 17. Second adjusting bolt; 18. Second limit ring; 19. Third guide rod; 20. Connecting arm. Specific Embodiments

[0024] The following details the specific embodiments of the present utility model with reference to the drawings. It should be understood that the specific embodiments described herein are only for explaining and understanding the present utility model, and do not limit the present utility model.

[0025] In the present utility model, unless otherwise stated, the orientation terms such as "upper, lower, inner, outer" included in the terms only represent the orientation of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation to the terms.

[0026] As Figures 1-4 shown, a sheet metal drilling device includes: an electric drill body 1, a drill bit 2 assembled on the electric drill body 1, a mounting sleeve 3 detachably and fixedly assembled on the electric drill body 1, and a clamping unit slidably connected to the mounting sleeve 3 along the axis of the drill bit 2 through a sliding connection member;

[0027] The clamping unit includes a clamping plate 4, an adjusting plate 5 arranged parallel to the clamping plate 4, a coarse adjustment mechanism assembled on the clamping plate 4 for adjusting the distance between the clamping plate 4 and the adjusting plate 5, a clamping arm 6 located between the clamping plate 4 and the adjusting plate 5 and slidably connected to the adjusting plate 5 along the sliding direction of the clamping unit, a force transmission block 7 fixedly installed on the side of the clamping arm 6 away from the clamping plate 4 and slidably passing through the adjusting plate 5, a spiral cam 8 rotatably installed on the side of the adjusting plate 5 away from the clamping arm 6 through a mounting mechanism and capable of contacting the force transmission block 7, and a dialing arm 9 fixedly connected to the spiral cam 8.

[0028] When drilling holes in the sheet metal 10, first, according to the thickness to be clamped, initially adjust the distance between the clamping plate 4 and the adjusting plate 5 through the coarse adjustment mechanism. Then, move the clamping plate 4 and the clamping arm 6 to both sides of the sheet metal 10 respectively. Then, drive the spiral cam 8 to rotate through the dialing arm 9. By the extrusion of the outer wall of the spiral cam 8 on the force transmission block 7, the clamping arm 6 is driven to abut against the sheet metal 10. The clamping plate 4 and the adjusting plate 5 tightly clamp the sheet metal 10 from both sides. The electric drill body 1 starts to drive the drill bit 2 to rotate and pushes the electric drill body 1 to move closer to the sheet metal 10. The mounting sleeve 3 will slide relative to the adjusting plate 5, and holes can be drilled in the sheet metal 10. The role of the sliding connection member is to prevent the drill bit 2 from slipping and tilting during drilling.

[0029] After the drilling is completed, reverse the dialing of the dialing arm 9 to drive the spiral cam 8 to rotate in the reverse direction and separate from the force transmission block 7. The clamping arm 6 and the sheet metal 10 will become loose, so as to disassemble the clamping unit from the sheet metal 10. By driving the spiral cam 8 to rotate through the dialing arm 9, the clamping and loosening of the sheet metal 10 are realized, and the operation is simple and fast.

[0030] When adjusting the distance between the clamping plate 4 and the adjusting plate 5 through the coarse adjustment mechanism, at this time, the clamping unit is not yet clamped on the sheet metal 10, which is also convenient for the operator to adjust the distance between the two.

[0031] Both ends of the clamping arm 6 are fixedly connected with first guide rods 11 that slidably pass through the adjusting plate 5. The end of the first guide rod 11 away from the clamping arm 6 is fixedly sleeved with a first limit ring 12. A return spring 13 is sleeved on the first guide rod 11 and abuts against the first limit ring 12 and the adjusting plate 5 at both ends respectively.

[0032] The return spring 13 can push the first guide rod 11 to move away from the clamping plate 4 through the first limit ring 12, thereby driving the clamping arm 6 to move away from the clamping plate 4, which is convenient for clamping the clamping plate 4 and the clamping arm 6 on both sides of the sheet metal 10.

[0033] The coarse adjustment mechanism is located on the side of the clamping arm 6 away from the drill bit 2. A first thread seat 14 is fixedly installed on the adjusting plate 5 on the side of the coarse adjustment mechanism away from the clamping arm 6. A first adjusting bolt 15 whose end can abut against the clamping plate 4 is threadedly connected to the first thread seat 14.

[0034] After the clamping arm 6 and the clamping plate 4 clamp the sheet metal 10, due to the large clamping force, the clamping plate 4 and the adjusting plate 5 will tilt. The first adjusting bolt 15 can abut against the adjusting plate 5, and the first adjusting bolt 15 is located on the side of the coarse adjustment mechanism away from the clamping arm 6, preventing the distance between the adjusting plate 5 and the end of the clamping plate 4 away from the sheet metal 10 from decreasing, thereby reducing the tilt between the clamping plate 4 and the adjusting plate 5 caused by the clamping force.

[0035] The coarse adjustment mechanism includes at least one second guide rod 16 fixedly connected to the adjusting plate 5 and sliding through the clamping plate 4, a second threaded seat fixedly installed on the clamping plate 4, and a second adjusting bolt 17 threaded through the second threaded seat and axially connected to the adjusting plate 5 at its end. A second limit ring 18 is fixedly installed at the end of the second guide rod 16 away from the adjusting plate 5.

[0036] When it is necessary to adjust the distance between the clamping plate 4 and the adjusting plate 5, rotate the second adjusting bolt 17, and it can drive the second guide rod 16 to slide on the clamping plate 4, thereby adjusting the distance between the clamping plate 4 and the adjusting plate 5.

[0037] The sliding connection member includes a plurality of third guide rods 19 fixedly connected to the clamping plate 4 and parallel to the drill bit 2, and a plurality of connecting arms 20 all fixedly connected to the mounting sleeve 3. The end of the connecting arm 20 away from the mounting sleeve 3 is slidably sleeved on the corresponding third guide rod 19, and the length direction of the connecting arm 20 is consistent with the corresponding radial direction of the drill bit 2.

[0038] After the clamping unit tightly clamps the sheet metal 10, the electric drill body 1 moves close to the sheet metal 10, and the connecting arm 20 slides close to the clamping plate 4 on the third guide rod 19. The function of the connecting arm 20 is to increase the distance between the third guide rod 19 and the drill bit 2, which can increase the drilling range of the drill bit 2.

[0039] The mounting sleeve 3 includes a pair of half-ring sleeves detachably connected by mounting bolts, and a plurality of connecting arms 20 are all fixedly connected to the same half-ring sleeve.

[0040] The mounting mechanism includes at least one shaft seat fixedly installed on the adjusting plate 5 and a rotating shaft connected to the shaft seat and fixedly connected to the spiral cam 8.

[0041] Rubber corrugated covers can be sleeved on the outside of the first guide rod 11, the second guide rod 16, the third guide rod 19, the first adjusting bolt 15 and the second bolt; this device is suitable for drilling holes at positions close to the edge of the sheet metal 10.

[0042] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all fall within the protection scope of the present utility model.

[0043] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any appropriate manner without contradiction. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods.

[0044] Furthermore, any combination can be made between various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, and it should also be regarded as the content disclosed by the present utility model.

Claims

1. A sheet metal drilling device, characterized in that: include: An electric drill body (1), a drill bit (2) mounted on the electric drill body (1), a mounting sleeve (3) detachably fixedly mounted on the electric drill body (1), and a clamping unit slidably connected to the mounting sleeve (3) along the axial direction of the drill bit (2) via a sliding connection member; The clamping unit comprises a clamping plate (4), an adjusting plate (5) arranged parallel to the clamping plate (4), a coarse adjustment mechanism mounted on the clamping plate (4) for adjusting the distance between the clamping plate (4) and the adjusting plate (5), a clamping arm (6) located between the clamping plate (4) and the adjusting plate (5) and slidably connected to the adjusting plate (5) along the sliding direction of the clamping unit, a force transmission block (7) fixedly mounted on a side of the clamping arm (6) away from the clamping plate (4) and sliding through the adjusting plate (5), a spiral cam (8) rotatably mounted on a side of the adjusting plate (5) away from the clamping arm (6) through a mounting mechanism and capable of contacting the force transmission block (7), and a shifting arm (9) fixedly connected to the spiral cam (8).

2. A sheet metal drilling device according to claim 1, characterized in that: Both ends of the clamp arm (6) are fixedly connected to a first guide rod (11) that slides through the adjustment plate (5); the end of the first guide rod (11) away from the clamp arm (6) is fixedly sleeved with a first limit ring (12); and the first guide rod (11) is sleeved with a return spring (13) at both ends of which are respectively in contact with the first limit ring (12) and the adjustment plate (5).

3. A sheet metal drilling device according to claim 1, characterized in that: The coarse adjustment mechanism is located on the side of the clamping arm (6) away from the drill bit (2); a first threaded seat (14) is fixedly mounted on the adjustment plate (5) and is located on the side of the coarse adjustment mechanism away from the clamping arm (6); a first adjustment bolt (15) is threadedly connected to the first threaded seat (14) and the end of the first adjustment bolt can abut against the clamping plate (4).

4. A sheet metal drilling device according to claim 1, characterized in that: The coarse adjustment mechanism comprises at least one second guide rod (16) fixedly connected to the adjustment plate (5) and slidingly passing through the clamping plate (4), a second threaded seat fixedly mounted on the clamping plate (4), and a second adjustment bolt (17) threadedly passing through the second threaded seat and with its end axially connected to the adjustment plate (5); a second limiting ring (18) is fixedly mounted on the end of the second guide rod (16) away from the adjustment plate (5).

5. The sheet metal drilling device according to claim 1, characterized in that: The sliding connection component comprises a plurality of third guide rods (19) fixedly connected to the clamping plate (4) and parallel to the drill bit (2) and a plurality of connecting arms (20) fixedly connected to the mounting sleeve (3), the end of the connecting arm (20) away from the mounting sleeve (3) is slidingly sleeved on the corresponding third guide rod (19), and the length direction of the connecting arm (20) is consistent with the corresponding radial direction of the drill bit (2).

6. A sheet metal drilling device according to claim 5, characterized in that: The mounting sleeve (3) comprises a pair of half-ring sleeves detachably connected by mounting bolts, and a plurality of connecting arms (20) are fixedly connected to the same half-ring sleeve.

7. The sheet metal drilling device according to claim 1, characterized in that: The mounting mechanism comprises at least one shaft seat fixedly mounted on the adjustment plate (5) and a rotating shaft connected to the shaft seat and fixedly connected to the spiral cam (8).

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