Drilling device for transmission shaft machining

Abstract

The utility model discloses a drilling device for machining a transmission shaft, which comprises a machine base, a rotating column rotationally connected to the machine base, a pneumatic chuck fixed on the rotating column, a driving mechanism arranged in the machine base and used for driving the rotating column to rotate, wall plates connected to two sides of the machine base, a top plate connected to the two wall plates, and a pressing mechanism mounted on the top plate. The pressing mechanism is located above the pneumatic chuck. Linear displacement mechanisms are arranged on the two sides of the machine base correspondingly, the two sides of the machine base are connected with first sliding bases through the linear displacement mechanisms correspondingly, and drilling mechanisms which are oppositely arranged are installed on the two first sliding bases. The first motor is started, all the rotating shafts are driven to rotate through cooperation of the driving wheel, the transmission belt and all the driven wheels, all the drill rods are driven to rotate, therefore, a plurality of holes can be drilled in the transmission shaft at the same time, the drilling mechanisms on the two sides work at the same time, and the drilling efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling devices, in particular to a drilling device for processing a transmission shaft. Background Art

[0002] The drive shaft is a high-speed, low-support rotating body and is an important component for transmitting power. Figure 5 As shown, during the processing of the transmission shaft, it is necessary to drill a hole on the transmission shaft.

[0003] After searching, it was found that the Chinese utility model patent with authorization publication number CN221231625U discloses a drive shaft drilling device. According to its description, the drilling assembly is driven by a double-push rod motor to move and drill holes at different positions along the length direction of the drive shaft. The drive shaft is driven to rotate by a flip plate to achieve drilling at different positions around the drive shaft; the drill bit is driven to rotate by a turntable to achieve oblique drilling or hole processing with relative angle requirements.

[0004] However, the above-mentioned transmission shaft drilling device has the following problems: (1) each time drilling is performed, only one hole can be drilled at both ends of the transmission shaft at the same time, and multiple holes cannot be drilled on the transmission shaft at one time, resulting in low drilling efficiency; (2) if multiple drill rods are provided, the spacing between adjacent drill rods is difficult to adjust, making drilling inconvenient. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a drilling device for machining a transmission shaft to solve the problems mentioned in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A drilling device for processing a transmission shaft comprises a machine base, a rotating column is rotatably connected to the machine base, a pneumatic chuck is fixed on the rotating column, a driving mechanism for driving the rotating column to rotate is provided in the machine base, wall panels are connected to both sides of the machine base, top panels are connected to the two wall panels, a clamping mechanism is installed on the top panel, and the clamping mechanism is located above the pneumatic chuck; linear displacement mechanisms are provided on both sides of the machine base, and first slides are respectively connected to the linear displacement mechanisms, and drilling mechanisms arranged oppositely are installed on the two first slides; the drilling mechanism comprises a box body connected to the first slide body, an opening is opened on the side of the box body facing the pneumatic chuck, a column is fixedly connected to the box body, and a sliding column is provided on the column A plurality of sliders are connected, and the sliders are slidably arranged in the box body. A vertical positioning hole is opened on the side of the box body away from the opening. The end face of the slider away from the opening is connected with a positioning rod, and the positioning rod is slidably arranged in the positioning hole. A fastening nut is threadedly connected to the positioning rod. Screwing the fastening nut to press it tightly on the box body can fix the slider in the box body. The end face of the slider close to the opening is rotatably connected to a rotating shaft, and a driven wheel is fixed on the rotating shaft. A first motor is provided on the upper part of the box body, and the first motor is connected to a first transmission shaft through a coupling. The first transmission shaft is connected to a driving wheel, and the driving wheel is connected to all driven wheels through a transmission belt. The drill rod is splined on the rotating shaft.

[0008] Preferably, the driving mechanism includes a second motor arranged in the machine base, a second transmission shaft connected to the second motor through a coupling, a main gear connected to the second transmission shaft, and a sub-gear connected to the rotating column, and the main gear is meshed with the sub-gear.

[0009] The above technical solution starts the second motor to drive the second transmission shaft to rotate, and through the cooperation of the main gear and the sub-gear, drives the rotating column to rotate, thereby driving the pneumatic chuck to rotate, so as to rotate the transmission shaft fixed on the pneumatic chuck.

[0010] Preferably, the linear displacement mechanism includes two bearing seats fixed on the machine base and located on one side of the pneumatic chuck, a screw rotatably connected to the two bearing seats, a guide rail provided on the machine base and located on both sides of the screw, and a third motor installed on the machine base, the third motor is transmission-connected to the screw, the first slide is threadedly connected to the screw, and the first slide is slidingly connected to the guide rail.

[0011] In the above technical solution, the third motor is started to drive the screw to rotate, and during the rotation of the screw, the first slide is driven to move along the guide rail, so that the drilling mechanism is close to the transmission shaft and drilling is performed.

[0012] Preferably, the pressing mechanism includes a cylinder mounted on the top plate and a pressing block connected to the telescopic end of the cylinder, and the pressing block is located above the pneumatic chuck.

[0013] In the above technical solution, after the pneumatic chuck clamps the transmission shaft, the cylinder is controlled to extend, driving the pressure block to descend, so that the transmission shaft can be pressed tightly by the pressure block to prevent shaking during drilling.

[0014] Preferably, the upper parts of the opposite surfaces of the two wall panels are connected with positioning blocks, the bottom surfaces of the positioning blocks are connected with guide rods, the top surface of the box body is connected with a second slide seat, and the second slide seat is slidably connected to the guide rods.

[0015] In the above technical solution, when the linear displacement mechanism drives the first slide to move, the second slide slides along the guide rod, thereby improving the stability of the box during movement and also improving the stability of the box during drilling.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) The transmission shaft is fixed by a pneumatic chuck, and then the first slide is driven to move toward the transmission shaft by a linear displacement mechanism until the drill rod contacts the transmission shaft. Then the first motor is started, and through the cooperation of the driving wheel, the transmission belt and all the driven wheels, all the rotating shafts are driven to rotate, and all the drill rods are driven to rotate, so that several holes can be drilled on the transmission shaft at the same time, and the drilling mechanisms on both sides work at the same time, which greatly improves the drilling efficiency.

[0018] (2) Loosen the fastening nut and remove the transmission belt, then slide the slider to adjust the spacing of the slider. When the slider reaches the appropriate position, tighten the fastening nut again to keep the slider fixed. Then replace the new transmission belt so that the new transmission belt can connect the driving wheel and all the transmission wheels. Finally, install the new transmission belt on the driving wheel and all the driven wheels to adjust the drill rod spacing and drill holes of different spacing on the transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the present utility model;

[0020] Figure 2 is a cross-sectional view of the drilling mechanism;

[0021] Figure 3 It is the right view of the box;

[0022] Figure 4 It is the left view of the box;

[0023] Figure 5 It is a schematic diagram on the transmission shaft;

[0024] In the figure: 1-machine base, 2-rotating column, 3-pneumatic chuck, 4-wall panel, 5-top plate, 6-first slide, 7-box, 8-column, 9-slider, 10-positioning hole, 11-positioning rod, 12-fastening nut, 13-rotating shaft, 14-driven wheel, 15-first motor, 16-driving wheel, 17-transmission belt, 18-drill rod, 19-second motor, 20-main gear, 21-secondary gear, 22-bearing seat, 23-screw, 24-guide rail, 25-third motor, 26-cylinder, 27-pressure block, 28-positioning block, 29-guide rod, 30-second slide, 31-transmission shaft. DETAILED DESCRIPTION

[0025] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] See also Figures 1-4 A drilling device for machining a drive shaft includes a base 1, to which a rotating column 2 is rotatably connected, and to which a pneumatic chuck 3 is fixed. A drive mechanism for rotating the rotating column 2 is provided within the base 1. The drive mechanism includes a second motor 19 disposed within the base, a second drive shaft connected to the second motor via a coupling, a main gear 20 connected to the second drive shaft, and a sub-gear 21 connected to the rotating column, with the main gear 20 meshing with the sub-gear 21. Starting the second motor 19 rotates the second drive shaft, which, through the cooperation of the main gear 20 and sub-gear 21, drives the rotating column 2, thereby driving the pneumatic chuck 3 to rotate, thereby rotating the drive shaft fixed to the pneumatic chuck 3.

[0028] The base 1 is connected to two sides of the machine base, each of which is connected to a top plate 5. A clamping mechanism is mounted on the top plate 5 and positioned above the pneumatic chuck 3. This clamping mechanism comprises a cylinder 26 mounted on the top plate and a pressure block 27 connected to the cylinder's telescopic end. Pressure block 27 is positioned above the pneumatic chuck 3. After the pneumatic chuck 3 clamps the drive shaft, the cylinder 26 is controlled to extend, driving pressure block 27 downward. This pressure block 27 compresses the drive shaft, preventing it from shaking during drilling.

[0029] Both sides of the machine base 1 are equipped with linear displacement mechanisms, each connected to a first slide 6 through the linear displacement mechanism; the two first slides 6 are mounted with opposing drilling mechanisms. The linear displacement mechanism includes two bearing seats 22 fixed to the machine base and located on either side of the pneumatic chuck, a screw 23 rotatably connected to the two bearing seats, guide rails 24 mounted on the machine base and located on either side of the screw, and a third motor 25 mounted on the machine base. The third motor 25 is in transmission connection with the screw 23, and the first slide 6 is threadedly connected to the screw 23 and slidably connected to the guide rails 24. Starting the third motor 25 drives the screw 23 to rotate, which in turn drives the first slide 6 to move along the guide rails 24, thereby bringing the drilling mechanism closer to the drive shaft and performing drilling.

[0030] The drilling mechanism includes a box body 7 connected to the first slide, the box body 7 is provided with an opening on the side facing the pneumatic chuck, a column 8 is fixedly connected to the box body 7, a number of sliders 9 are slidably connected to the column 8, the slider 9 is slidably arranged in the box body 7, and a vertical positioning hole 10 is provided on the side of the box body 7 away from the opening. The end face of the slider 9 away from the opening is connected with a positioning rod 11, and the positioning rod 11 is slidably arranged in the positioning hole 10. A fastening nut 12 is threadedly connected to the positioning rod 11. Screwing the fastening nut 12 so that it is tightly pressed on the box body can fix the slider 9 in the box body 7. The end face of the slider 9 near the opening is rotatably connected to a rotating shaft 13, and a driven wheel 14 is fixed on the rotating shaft 13. A first motor 15 is provided on the upper part of the box body 7, the first motor is connected to a first transmission shaft through a coupling, and a driving wheel 16 is connected to the first transmission shaft. The driving wheel 16 is transmission-connected to all driven wheels 14 through a transmission belt 17, and a drill rod 18 is splined on the rotating shaft 13. The first motor is started to drive all driven wheels to rotate through the driving wheel and the transmission belt, thereby driving all drill rods to rotate, so as to drill multiple holes on the transmission shaft at the same time.

[0031] The working principle of this embodiment is:

[0032] The transmission shaft 31 is fixed by the pneumatic chuck 3, and then the first slide 6 is driven to move toward the transmission shaft 31 through the linear displacement mechanism until the drill rod 18 contacts the transmission shaft 31. Then, the first motor 15 is started, and through the cooperation of the driving wheel 16, the transmission belt 17 and all the driven wheels 16, all the rotating shafts 13 are driven to rotate, and all the drill rods 18 are driven to rotate, so that several holes can be drilled on the transmission shaft at the same time, and the drilling mechanisms on both sides work at the same time, which greatly improves the drilling efficiency.

[0033] Loosen the fastening nut 12 and remove the transmission belt 17, then slide the slider 9 to adjust the spacing of the slider 9. When the slider 9 reaches the appropriate position, tighten the fastening nut 12 again to keep the slider 9 fixed, and then replace the new transmission belt 17 so that the new transmission belt 17 can connect the driving wheel 16 and all the transmission wheels 14. Finally, install the new transmission belt 17 on the driving wheel 16 and all the driven wheels 14, so as to adjust the spacing of the drill rods 18 and drill holes of different spacings on the transmission shaft.

[0034] Example 2

[0035] The difference between this embodiment and embodiment 1 is that the upper parts of the opposite surfaces of the two wall panels 4 are connected with positioning blocks 28, the bottom surfaces of the positioning blocks 28 are connected with guide rods 29, the top surface of the box body 7 is connected with a second slide 30, and the second slide 30 is slidably connected to the guide rods 29.

[0036] When the linear displacement mechanism drives the first slide 6 to move, the second slide 30 slides along the guide rod 29, thereby improving the stability of the box body 7 during movement and also improving the stability of the box body 7 during drilling.

[0037] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drilling device for driving shaft processing, characterized in that: The machine base (1) comprises a machine base (1), a rotating column (2) is rotatably connected to the machine base (1), a pneumatic chuck (3) is fixed to the rotating column (2), a driving mechanism for driving the rotating column (2) to rotate is provided in the machine base (1), wall panels (4) are connected to both sides of the machine base (1), top panels (5) are connected to the two wall panels (4), a pressing mechanism is installed on the top panel (5), and the pressing mechanism is located above the pneumatic chuck (3); linear displacement mechanisms are provided on both sides of the machine base (1), and first slides (6) are respectively connected thereto through the linear displacement mechanisms, and drilling mechanisms are installed on the two first slides (6) that are arranged opposite to each other; The drilling mechanism comprises a box body (7) connected to the first slide seat, an opening is provided on the side of the box body (7) facing the pneumatic chuck, a column (8) is fixedly connected in the box body (7), a plurality of sliders (9) are slidably connected to the column (8), the sliders (9) are slidably arranged in the box body (7), a vertical positioning hole (10) is provided on the side of the box body (7) away from the opening, a positioning rod (11) is connected to the end face of one end of the slider (9) away from the opening, the positioning rod (11) is slidably arranged in the positioning hole (10), and a fastening nut ( 12), the fastening nut (12) is screwed to press the nut against the box body so that the slider (9) can be fixed in the box body (7), the end surface of the slider (9) close to the opening is rotatably connected to the rotating shaft (13), a driven wheel (14) is fixed on the rotating shaft (13), a first motor (15) is provided on the upper part of the box body (7), the first motor is connected to the first transmission shaft through a coupling, a driving wheel (16) is connected to the first transmission shaft, the driving wheel (16) is connected to all the driven wheels (14) through a transmission belt (17), and a drill rod (18) is splined on the rotating shaft (13).

2. A drilling device for processing a transmission shaft according to claim 1, characterized in that: The driving mechanism comprises a second motor (19) arranged in the machine base, a second transmission shaft connected to the second motor through a coupling, a main gear (20) connected to the second transmission shaft, and a sub-gear (21) connected to the rotating column, wherein the main gear (20) is meshed with the sub-gear (21).

3. The drilling device for processing a transmission shaft according to claim 2, characterized in that: The linear displacement mechanism comprises two bearing seats (22) fixed on the machine base and located on one side of the pneumatic chuck, a screw rod (23) rotatably connected to the two bearing seats, a guide rail (24) provided on the machine base and located on both sides of the screw rod, and a third motor (25) installed on the machine base, wherein the third motor (25) is transmission-connected to the screw rod (23), a first slide seat (6) is threadedly connected to the screw rod (23), and the first slide seat (6) is slidably connected to the guide rail (24).

4. A drilling device for processing a transmission shaft according to claim 3, characterized in that: The pressing mechanism comprises a cylinder (26) mounted on the top plate and a pressing block (27) connected to the telescopic end of the cylinder, wherein the pressing block (27) is located above the pneumatic chuck (3).

5. The drilling device for driving shaft processing according to claim 4, characterized in that: The upper parts of the opposite surfaces of the two wall panels (4) are connected with positioning blocks (28), the bottom surface of the positioning blocks (28) is connected with a guide rod (29), the top surface of the box body (7) is connected with a second slide seat (30), and the second slide seat (30) is slidably connected to the guide rod (29).

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