A dual-head punching device

Abstract

A dual-head drilling device, belonging to the technical field of drilling equipment, includes an operating table. Four directional columns are fixedly installed on the upper surface of the operating table. A lifting plate is vertically slidably installed between the four directional columns. A hydraulic telescopic column is fixedly installed between the lifting plate and the upper surface of the operating table. A housing is fixedly installed on the lower surface of the lifting plate. Two drilling bits are rotatably installed on the lower surface of the housing. A workpiece platform is fixedly installed on the upper surface of the operating table. A positioning groove is formed on the upper surface of the workpiece platform. Two through-holes are formed in the positioning groove, each located directly below a corresponding drilling bit. Multiple mounting grooves are equidistantly formed along the circumference of the positioning groove. Each mounting groove is equipped with a stress-reducing friction-lifting device to reduce friction between the workpiece and the bottom of the positioning groove cavity during rotation. A positioning adjustment integrated device is installed on the lower surface of the housing. This invention provides more stable positioning and more convenient and efficient drilling position adjustment throughout the drilling process.

Description

Technical Field

[0001] This utility model belongs to the technical field of drilling equipment, specifically relating to a dual-head drilling device. Background Technology

[0002] In modern industrial production, industries such as machinery manufacturing, furniture processing, and building materials production often require drilling operations on workpieces. To improve production efficiency, double-headed drilling devices have been developed.

[0003] However, current dual-head punching devices have significant problems in practical use:

[0004] Firstly, precise workpiece positioning is difficult during drilling operations. Due to the lack of an efficient and accurate positioning system, operators need to spend a lot of time manually calibrating the workpiece position. This not only leads to low production efficiency, but also causes inaccurate drilling positions due to human error, affecting product quality and increasing the defect rate.

[0005] Secondly, when drilling is required at different circumferential positions on the workpiece, the existing device is not conducive to circumferential rotation adjustment of the workpiece. The traditional method usually involves disassembling the workpiece, reinstalling it, and adjusting the angle. This process is cumbersome and complicated, seriously disrupting the continuity of production and restricting further improvement of production efficiency.

[0006] To address this technical problem, another dual-head punching device is provided. Utility Model Content

[0007] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a double-headed drilling device to solve the problems of difficulty in positioning the workpiece and inconvenience in adjusting during circumferential drilling in the existing double-headed drilling devices.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A dual-head drilling device includes an operating table. Four directional columns are fixedly mounted on the upper surface of the operating table. A lifting plate is vertically slidably mounted between the four directional columns. A hydraulic telescopic column is fixedly mounted between the lifting plate and the upper surface of the operating table. A housing is fixedly mounted on the lower surface of the lifting plate. Two drilling bits are rotatably mounted on the lower surface of the housing. A workpiece platform is fixedly mounted on the upper surface of the operating table. A positioning groove is formed on the upper surface of the workpiece platform. Two through-holes are formed in the positioning groove, each located directly below a corresponding drilling bit. Multiple mounting slots are equidistantly formed along the circumference of the positioning groove. Each mounting slot is equipped with a stress-reducing friction-lifting device, which reduces friction between the workpiece and the bottom of the positioning groove cavity during rotation. A positioning and adjustment integrated device is mounted on the lower surface of the housing. This integrated positioning and adjustment device is located above the positioning groove and is used to hold and position the workpiece and to rotate the workpiece circumferentially to adjust the drilling position.

[0010] In the above technical solution, the positioning and adjustment integrated device includes a servo motor A, which is fixedly installed in the housing. A cross-shaped solid shaft is fixedly installed at the output end of the servo motor A. A groove is opened on the outer surface of the cross-shaped solid shaft. A cross-shaped hollow shaft is sleeved on the outer surface of the cross-shaped solid shaft. A spline is fixedly installed on the inner side wall of the cross-shaped hollow shaft. The spline and the groove are slidably connected. A spring A is fixedly installed between the cross-shaped hollow shaft and the cross-shaped solid shaft. A rubber pressure plate is fixedly installed on the lower surface of the cross-shaped hollow shaft. The position of the rubber pressure plate is at least five centimeters lower than the bottom of the drilling bit.

[0011] In the above technical solution, the stress-reducing motorcycle lifting device includes a sliding column, which is slidably installed in a corresponding mounting groove. A spring B is fixedly installed between the lower surface of the sliding column and the bottom of the inner cavity of the corresponding mounting groove, and a steel ball is rotatably embedded in the upper surface of the sliding column.

[0012] In the above technical solution, a rotating shaft is fixedly installed on the upper surface of the drilling bit, and the upper end of the rotating shaft is rotatably disposed inside the housing. A servo motor B is fixedly installed inside the housing. A sprocket is sleeved on the outer surface of the servo motor B and the rotating shaft. A transmission chain is installed between the three sprockets, and the transmission chain is in a taut state.

[0013] In the above technical solution, a support frame is fixedly installed inside the housing, and the servo motor A and servo motor B are respectively fixedly installed on the front and rear surfaces of the support frame.

[0014] The dual-head punching device of this utility model has the following advantages compared with the prior art:

[0015] This invention employs an integrated positioning and adjustment device and a stress-reducing friction lifting device. These two devices work together to ensure stability during drilling of a disc-shaped workpiece. The integrated positioning and adjustment device presses the workpiece down and fixes it within the positioning groove, ensuring stability during drilling. When the drilling position needs adjustment, the pressure applied to the workpiece is first reduced. Then, the stress-reducing friction lifting device lifts the bottom of the workpiece, reducing friction between it and the positioning groove. Finally, the servo motor A within the integrated positioning and adjustment device drives the rubber pressure plate to rotate, causing the workpiece to rotate within the positioning groove, thus adjusting the drilling position. This makes the entire drilling process more stable and the drilling position adjustment more convenient and efficient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a schematic diagram of the carrier stage structure of this utility model.

[0018] Figure 3 for Figure 2 Enlarged view of the local structure at point a.

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the shell of this utility model.

[0020] Figure 5 This is a schematic diagram of the cross-shaped solid shaft structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of this utility model in use.

[0022] Figures 1-6 The components include: 1. Operating platform; 11. Directional column; 12. Lifting plate; 13. Hydraulic telescopic column; 2. Carrier platform; 21. Positioning slot; 22. Through port; 23. Mounting slot; 3. Stress-reducing motorcycle lifting device; 31. Sliding column; 32. Spring B; 33. Steel ball; 4. Housing; 41. Support frame; 5. Drill bit; 51. Rotating shaft; 6. Integrated positioning and adjustment device; 61. Servo motor A; 62. Cross-shaped solid shaft; 63. Cross-shaped solid shaft; 64. Spring A; 65. Rubber pressure plate; 7. Servo motor B; 8. Sprocket; 9. Transmission chain. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-6 This utility model provides a technical solution:

[0025] A dual-head drilling device includes an operating platform 1. Four directional columns 11 are fixedly installed on the upper surface of the operating platform 1. A lifting plate 12 is vertically slidably installed between the four directional columns 11. A hydraulic telescopic column 13 is fixedly installed between the lifting plate 12 and the upper surface of the operating platform 1. A housing 4 is fixedly installed on the lower surface of the lifting plate 12 by bolts. Two drilling bits 5 are rotatably installed on the lower surface of the housing 4. The extension and retraction of the hydraulic telescopic column 13 can drive the lifting plate 1 to rise and fall, thereby moving the housing 4 and causing the drilling bits 5 to rise and fall, thus realizing the drilling operation.

[0026] Combination Figure 1 and Figure 2 As shown, a workpiece platform 2 is fixedly installed on the upper surface of the operating table 1. A positioning groove 21 is formed on the upper surface of the workpiece platform 2. The inner diameter of the positioning groove 21 is the same as the outer diameter of the disc workpiece to be processed. Placing the disc workpiece into the positioning groove 21 will position it below the drilling bit 5. Two through holes 22 are formed in the positioning groove 21, which are located directly below the corresponding drilling bit 5, ensuring that the drilling bit 5 can smoothly penetrate the workpiece when drilling. Multiple mounting grooves 23 are equally spaced along the circumference in the positioning groove 21. Each mounting groove 23 is equipped with a stress-reducing friction lifting device 3. When the workpiece is naturally placed in the positioning groove 21, the stress-reducing friction lifting device 3 is used to reduce the friction between the workpiece and the bottom of the inner cavity of the positioning groove 21 when the workpiece rotates.

[0027] A positioning and adjustment integrated device 6 is installed on the lower surface of the housing 4. The positioning and adjustment integrated device 6 is located above the positioning groove 21 and is used to press and position the workpiece and drive the workpiece to rotate circumferentially to adjust the drilling position.

[0028] Combination Figure 1 and Figure 4As shown, the positioning and adjustment integrated device 6 includes a servo motor A61, which is electrically connected to an external power supply and an external controller. The servo motor A61 is a pulse forward and reverse motor, and the external controller sends pulse signals to the servo motor A61 to control its rotation. The servo motor A61 is fixedly installed inside the housing 4, and a cross-shaped solid shaft 62 is fixedly installed at the output end of the servo motor A61 through a coupling. A groove 621 is opened on the outer surface of the cross-shaped solid shaft 62, and a cross-shaped hollow shaft 63 is sleeved on the outer surface of the cross-shaped solid shaft 62. A spline 631 is fixedly installed on the inner side wall of the cross-shaped hollow shaft 63, and the spline 631 is slidably connected to the groove 621. A spring A64 is fixedly installed between the cross-shaped hollow shaft 63 and the cross-shaped solid shaft 62, and a rubber pressure plate 65 is fixedly installed on the lower surface of the cross-shaped hollow shaft 63. The position of the rubber pressure plate 65 is at least five centimeters lower than the bottom of the drilling bit 5 to ensure that the rubber pressure plate 65 is pre-contacted and positioned with the disc workpiece during the downward movement.

[0029] When drilling is performed on the disc workpiece placed in the positioning groove 21, the hydraulic telescopic column 13 retracts, and the drilling drill 5 moves downward through the lifting frame 12 and the housing 4, while the positioning and adjustment integrated device 6 moves downward. The rubber pressure plate 65 first contacts the disc workpiece. As the positioning and adjustment integrated device 6 moves downward, the spring A64 is continuously compressed and applies pressure to the cross-shaped hollow shaft 63 and the rubber pressure plate 65, thereby squeezing and fixing the disc workpiece below. After the drilling drill 5 contacts the disc workpiece, the drilling operation is performed. This design not only ensures the stability of the workpiece fixation, but also avoids rigid impact damage to the processed surface through elastic deformation buffer.

[0030] like Figure 2 As shown, the stress-reducing friction lifting device 3 includes a sliding column 31, which is slidably installed in the corresponding mounting groove 23. A spring B32 is fixedly installed between the lower surface of the sliding column 31 and the bottom of the inner cavity of the corresponding mounting groove 23. A steel ball 33 is rotatably embedded in the upper surface of the sliding column 31. In the actual manufacturing process, it should be noted that the sum of the elastic forces of the multiple springs B32 can lift the Huazhu disc workpiece.

[0031] After drilling, when it is necessary to rotate the disc workpiece to drill holes at different positions in the circumference, the hydraulic telescopic column 13 drives the positioning and adjustment integrated device 6 to move upward a certain distance, so that the rubber pressure plate 65 contacts the disc workpiece. At the same time, the sliding column 31 and steel ball 33, under the action of spring B32, lift the disc workpiece, so that the lower surface of the disc workpiece separates from the lower surface of the inner cavity of the positioning groove 21 to reduce friction. Then, the servo motor A61 is started to drive the rubber pressure plate 65 to rotate through the cross-shaped hollow shaft 63 and cross-shaped solid shaft 62. Thus, the friction between the rubber pressure plate 65 and the disc workpiece drives its rotation to adjust the drilling position. When precisely adjusting the drilling position, the servo motor A61 can be pre-programmed to control the rotation angle of each start and stop, thereby controlling the rotation angle of the disc workpiece to ensure that the drilling distance between adjacent holes is the same.

[0032] Specifically, such as Figure 4 As shown, a rotating shaft 51 is fixedly installed on the upper surface of the drilling bit 5. The upper end of the rotating shaft 51 is rotatably installed inside the housing 4. A servo motor B7 is fixedly installed inside the housing 4. A sprocket 8 is sleeved on the outer surface of the servo motor B7 and the rotating shaft 51. A transmission chain 9 is installed between the three sprockets 8. The transmission chain 9 is in a taut state.

[0033] Servo motor B7 is electrically connected to an external power supply and an external controller. Servo motor B7 is also a pulse forward and reverse motor. The external controller sends pulse signals to servo motor B7 to control its forward and reverse rotation. When servo motor B7 rotates, it can drive the two rotating shafts 51 to rotate through the coordinated cooperation between sprocket 8 and transmission chain 9, thereby driving the drilling bit 5 to rotate to perform drilling work.

[0034] Finally, as Figure 4 As shown, a support frame 41 is fixedly installed inside the housing 4. Servo motor A61 and servo motor B7 are respectively fixedly installed on the front and rear surfaces of the support frame 41. Servo motor A61 and servo motor B7 are respectively fixedly installed inside the housing 4 through the support frame 41.

[0035] Working principle: During use, the disc workpiece to be drilled is placed in the positioning slot 21 of the carrier stage 2. Then, the hydraulic telescopic column 13 drives the drilling bit 5 and the positioning and adjustment integrated device 6 to move down through the lifting plate 12 and the housing 4. The disc workpiece is pre-fixed by applying pressure with the rubber pressure plate 64. Then, the two drilling bits 5 are used to drill holes in the disc simultaneously. After drilling, the positioning and adjustment integrated device 6 is moved up to reduce the pressure on the disc workpiece. When the applied pressure reaches a certain critical point, Spring B23 extends, pushing the slide column 31 out of the mounting groove 23. With the help of steel ball 33, the disc workpiece is lifted. At this time, the disc workpiece is in continuous contact with the rubber pressure plate 64. The servo motor A61 drives the rubber pressure plate 65 to rotate through the cross-shaped hollow shaft 63 and the cross-shaped solid shaft 62. The friction between the rubber pressure plate 65 and the disc workpiece drives its rotation to adjust the drilling position. After adjusting to the appropriate drilling position, the above action is repeated. After fixing the disc workpiece with the rubber pressure plate 65, the drilling can be performed.

Claims

1. A double-end piercing device comprising an operating table (1), characterized in that, Four directional columns (11) are fixedly installed on the upper surface of the operating table (1), and a lifting plate (12) is vertically slidably installed between the four directional columns (11). A hydraulic telescopic column (13) is fixedly installed between the lifting plate (12) and the upper surface of the operating table (1). A housing (4) is fixedly installed on the lower surface of the lifting plate (12), and two drilling bits (5) are rotatably installed on the lower surface of the housing (4). The upper surface of the operating table (1) is fixedly installed with a carrier table (2). The upper surface of the carrier table (2) is provided with a positioning groove (21). Two through holes (22) are opened in the positioning groove (21). The through holes (22) are located directly below the corresponding drilling bits (5). Multiple mounting grooves (23) are equally spaced along the circumference in the positioning groove (21). Each mounting groove (23) is equipped with a stress-reducing friction-lifting device (3). The stress-reducing friction-lifting device (3) is used to reduce the friction between the workpiece and the bottom of the inner cavity of the positioning groove (21) when the workpiece rotates. The lower surface of the housing (4) is equipped with a positioning and adjustment integrated device (6), which is located above the positioning groove (21) and is used to press and position the workpiece and drive the workpiece to rotate circumferentially to adjust the drilling position.

2. A double-end piercing apparatus according to claim 1, wherein The positioning and adjustment integrated device (6) includes a servo motor A (61), which is fixedly installed inside the housing (4). A cross-shaped solid shaft (62) is fixedly installed at the output end of the servo motor A (61). A groove (621) is provided on the outer surface of the cross-shaped solid shaft (62). A cross-shaped hollow shaft (63) is fitted on the outer surface of the cross-shaped solid shaft (62). A spline (631) is fixedly installed on the inner side wall of the cross-shaped hollow shaft (63). The spline (631) and the groove (621) are slidably connected. A spring A (64) is fixedly installed between the cross-shaped hollow shaft (63) and the cross-shaped solid shaft (62). A rubber pressure plate (65) is fixedly installed on the lower surface of the cross-shaped hollow shaft (63). The position of the rubber pressure plate (65) is at least five centimeters lower than the bottom of the drilling bit (5).

3. A double-end piercing apparatus according to claim 2, wherein The stress-reducing friction lifting device (3) includes a sliding column (31), which is slidably installed in the corresponding mounting groove (23). A spring B (32) is fixedly installed between the lower surface of the sliding column (31) and the bottom of the inner cavity of the corresponding mounting groove (23). A steel ball (33) is rotatably embedded in the upper surface of the sliding column (31).

4. A double-end piercing apparatus according to claim 2, wherein The upper surface of each drilling bit (5) is fixedly mounted with a rotating shaft (51). The upper end of each rotating shaft (51) is rotatably mounted inside the housing (4). A servo motor B (7) is fixedly mounted inside the housing (4). A sprocket (8) is sleeved on the outer surface of the servo motor B (7) and the rotating shaft (51). A transmission chain (9) is installed between the three sprockets (8). The transmission chain (9) is in a taut state.

5. A double-end piercing apparatus according to claim 4, wherein The support frame (41) is fixedly installed in the shell (4), and the servo motor A (61) and the servo motor B (7) are fixedly installed on the front and rear surfaces of the support frame (41) respectively.

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