A drilling device with automatic positioning function for motor spare parts machining

Abstract

The application discloses a drilling device with automatic positioning function for motor spare part machining, which comprises a rack, a positioning mechanism, a clamping mechanism and a drilling mechanism, the positioning mechanism is fastened with the rack, the positioning mechanism is used for positioning the motor shell, the clamping mechanism is fastened with the positioning mechanism, the rack is provided with a guide rail, and the drilling mechanism is slidably connected with the guide rail; the rack provides stable support for each mechanism, preventing shaking during the machining of the workpiece, the workpiece machined by the application is the motor shell, first, the workpiece to be machined is placed on the positioning mechanism, the positioning mechanism positions the workpiece with the inner ring of the workpiece as the reference, then the clamping mechanism is started to cooperate with the positioning mechanism to fix the motor shell on the drilling device, finally, the drilling mechanism is started to drill the mounting hole of the end surface of the motor shell, after the drilling is completed, the clamping mechanism and the positioning mechanism are loosened, and the workpiece can be taken out.

Description

Technical Field

[0001] This invention relates to the field of drilling technology, specifically to a drilling device with automatic positioning function for processing motor parts. Background Technology

[0002] An electric motor is generally assembled from a stator, rotor, main shaft, end covers, and housing. Energy conversion is achieved through the electromagnetic interaction between the stator and rotor. When current flows through the stator windings, the generated magnetic field causes the rotor to rotate. In this way, electrical energy is converted into mechanical energy, enabling the motor to operate. The motor housing is typically manufactured through casting, but castings have relatively low precision, requiring a series of finishing processes after casting to meet dimensional requirements, such as milling and drilling.

[0003] However, the casting of the motor housing has a large machining allowance, and the outer side of the housing has sheet-like heat dissipation fins. If it is clamped directly from the outside of the housing, it is not only easy to damage the heat dissipation fins, but also difficult to locate the drilling point when clamping on an uneven part of the outer side of the housing. Summary of the Invention

[0004] The purpose of this invention is to provide a drilling device with automatic positioning function for processing motor parts, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: the drilling device includes a frame, a positioning mechanism, a clamping mechanism and a drilling mechanism, the positioning mechanism is fixedly connected to the frame, the positioning mechanism is used to position the motor housing, the clamping mechanism is fixedly connected to the positioning mechanism, the frame is provided with a guide rail, and the drilling mechanism is slidably connected to the guide rail.

[0006] The frame provides stable support for each mechanism to prevent shaking during workpiece processing. The workpiece processed by this invention is a motor housing. First, the workpiece to be processed is placed on the positioning mechanism. The positioning mechanism positions the workpiece based on its inner ring. Then, the clamping mechanism is activated to cooperate with the positioning mechanism to fix the motor housing on the drilling device. Finally, the drilling mechanism is activated to drill the mounting holes on the end face of the motor housing. After drilling is completed, the clamping mechanism and the positioning mechanism are released, and the workpiece can be removed.

[0007] Furthermore, the positioning mechanism includes a rotary motor, a support frame, a guide column, a sliding sleeve, a moving block, an abutment plate, and a connecting rod. The rotary motor is fixedly connected to the frame, and its output end is connected to the support frame via a transmission. The guide column is fixedly connected to the support frame, and the sliding sleeve is slidably connected to the guide column. A power compartment is provided inside the guide column, and an electric push rod is installed inside the power compartment. The output end of the electric push rod is fixedly connected to the inner wall of the sliding sleeve. A sliding groove is provided on the support frame, and the moving block is slidably connected to the sliding groove. The abutment plate is fixedly connected to the moving block, and several sets of abutment plates are evenly arranged along the circumference of the sliding sleeve. One end of the connecting rod is hinged to the sliding sleeve, and the other end of the connecting rod is hinged to the abutment plate.

[0008] Before drilling, the inner ring and two end faces of the cast motor housing blank are pre-milled to ensure a standard circular inner ring with higher precision than the outer ring, serving as a positioning reference. During machining, the motor housing is first fitted onto the guide post, with the end face of the housing abutting against the plane of the support frame. Then, the electric push rod in the power compartment is activated, causing the sliding sleeve to move downwards along the guide post. Driven by the connecting rod, the moving block moves outwards along the groove, causing the abutment plate to expand outwards around the guide post and abut against the inner wall of the motor housing. The sliding sleeve is arranged circumferentially around it. Therefore, the expanded abutment plates can position the inner ring axis of the motor housing and the axis of the guide column together. When machining the mounting holes on the end face of the motor housing, the motor drives the support frame to rotate continuously at a certain angle, and the drilling mechanism moves up and down to perform drilling operations. In this way, the circle formed by the several mounting holes machined on the end face of the motor housing is concentric with the inner ring of the motor housing. Therefore, when the end cover is installed on the motor housing, it can be ensured that the coaxiality of the shaft hole on the end cover is consistent with that of the inner ring of the motor housing, thus improving the machining accuracy of the mounting holes.

[0009] Furthermore, the side of the abutment plate furthest from the sliding sleeve is an arc-shaped surface.

[0010] One side of the arc-shaped surface of the abutment plate abuts against the inner ring of the motor housing. The arc-shaped surface can increase the contact area between the abutment plate and the motor housing, increase the friction, prevent relative movement during the positioning process, and also play a role in pre-clamping the motor housing.

[0011] Furthermore, the clamping mechanism includes a fixed frame, a clamping push rod, and a clamping head. The fixed frame is fastened to the support frame, the clamping push rod is fastened to the fixed frame, and the output end of the clamping push rod passes through the fixed frame and is connected to the clamping head via a transmission.

[0012] The fixed frame is fixed on the support frame to provide support for the clamping mechanism. After the positioning mechanism completes the positioning, the clamping push rod is activated, which drives the clamping head to move towards the workpiece and clamps the clamping head onto the workpiece, thereby fixing the workpiece and preventing the workpiece from shaking during drilling operations.

[0013] Furthermore, the clamping head includes a protective shell, a slider, a lateral support rod, and a return spring. The protective shell is fastened to the output end of the clamping push rod. The protective shell has a receiving cavity and a slide rail. The receiving cavity is connected to the slide rail. The slider is slidably connected to the receiving cavity. One end of the return spring is fastened to the slider, and the other end of the return spring is fastened to the inner wall of the receiving cavity. The lateral support rod is slidably connected to the slide rail. The receiving cavity is filled with hydraulic oil.

[0014] However, the outer side of the motor housing has heat dissipation fins. If the clamping head is directly clamped onto the heat dissipation fins, the fins, being thin and low in strength, are easily damaged. By designing the size of the clamping head to be smaller than the gap between the heat dissipation fins, during clamping, the clamping head inserts into the gap between the heat dissipation fins, the clamping push rod pushes the protective shell towards the workpiece, the slider abuts against the workpiece surface, and receives a reaction force, thereby causing the slider to slide along the receiving cavity. The return spring is compressed, and the hydraulic oil in the receiving cavity is compressed, thereby causing the lateral support rod to slide along the slide rail to both sides, abutting against the side of the heat dissipation fins, providing lateral support, thus counteracting the axial force generated during drilling and preventing the workpiece from deflecting during drilling. After clamping, under the action of the return spring, the slider moves upward, and the lateral support rod gradually retracts under the pressure of the hydraulic oil in the receiving cavity.

[0015] Furthermore, the slide is inclined, with the inclination direction of the slide facing the workpiece.

[0016] To prevent the lateral support rod from bending the heat sink fins, the slide rail is tilted. This way, when the lateral support rod moves outward along the slide rail, it will abut against the connection between the heat sink fins and the motor housing. This connection is thicker and can withstand greater pressure, preventing the heat sink fins from bending.

[0017] Furthermore, the receiving cavity is provided with a contraction section, which is connected to a slide, and the diameter of the slide is one-sixth of the diameter of the receiving cavity.

[0018] The contraction section reduces the volume within the receiving cavity, thus reducing the amount of hydraulic oil used. The lateral support rod must move a greater distance than the slider moves downward to ensure that the lateral support rod abuts against the heat dissipation fins. Utilizing the incompressible property of hydraulic oil, since the diameter of the slide is smaller than the diameter of the receiving cavity, when the slider moves a certain distance downward along the receiving cavity, the lateral support rod will move much more than the distance the slider moves under the push of the hydraulic oil, amplifying the displacement and ensuring that the lateral support rod abuts in place.

[0019] Furthermore, the drilling mechanism includes a first motor, a lead screw, an adjusting seat, a hydraulic cylinder, a sliding seat, a second motor, and a drill bit. The first motor is fixedly connected to the frame, the output end of the first motor is driven by the lead screw, the lead screw is driven by the adjusting seat, the adjusting seat is slidably connected to the guide rail, the hydraulic cylinder is fixedly connected to the adjusting seat, the output end of the hydraulic cylinder is driven by the sliding seat, the second motor is fixedly connected to the sliding seat, and the output end of the second motor is driven by the drill bit.

[0020] The first motor starts, driving the lead screw to rotate, which in turn moves the adjusting seat up and down along the guide rail, adjusting the drilling mechanism to a suitable height. When drilling is required, the hydraulic cylinder is first started, driving the sliding seat to move, which in turn moves the second motor and the drill bit to the position where drilling is required. Then the second motor is started, driving the drill bit to rotate. Next, the first motor starts, driving the adjusting seat to move down, which in turn moves the drill bit down to perform the drilling operation.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: Using the inner ring of the motor housing as a positioning reference, during processing, the motor housing is first fitted onto the guide post, with the end face of the motor housing abutting against the plane of the support frame. Then, the electric push rod in the power compartment is activated, driving the sliding sleeve to move downwards along the guide post. Driven by the connecting rod, the moving block moves outwards along the slide groove, thereby causing the abutment plate to expand outwards around the guide post, abutting against the inner wall of the motor housing. Since the abutment plate is arranged circumferentially around the sliding sleeve, the expansion... The dry abutment plate positions the inner ring axis of the motor housing and the axis of the guide post together. When machining the mounting holes on the end face of the motor housing, the motor drives the support frame to rotate continuously at a certain angle, and the drilling mechanism moves up and down to perform the drilling operation. This ensures that the circle formed by the several mounting holes machined on the end face of the motor housing is concentric with the inner ring of the motor housing. Therefore, when the end cover is subsequently installed on the motor housing, it ensures that the coaxiality of the shaft hole on the end cover is consistent with the inner ring of the motor housing, improving the machining accuracy of the mounting holes. After the positioning mechanism completes the positioning, the clamping push rod is activated, driving the clamping head to move towards the workpiece, pressing the clamping head against the workpiece, thus fixing the workpiece. In conjunction with the positioning mechanism, this achieves double-sided clamping from both inside and outside, preventing workpiece swaying during drilling. By designing the clamping head to be smaller than the gap between the heat dissipation fins, during clamping, the clamping head inserts into the gap between the heat dissipation fins, the clamping push rod pushes the protective shell towards the workpiece, and the slider abuts against the workpiece surface, receiving a reaction force. This causes the slider to slide along the receiving cavity, compressing the return spring and the hydraulic oil in the receiving cavity. This compresses the hydraulic oil, causing the lateral support rod to slide along the slide rail to both sides, abutting against the sides of the heat dissipation fins, providing lateral support and counteracting the axial force generated during drilling. Utilizing the incompressible property of hydraulic oil, because the diameter of the slide rail is smaller than the diameter of the receiving cavity, when the slider moves a certain distance down along the receiving cavity, the lateral support rod, driven by the hydraulic oil, will move much further than the slider, amplifying the displacement and ensuring the lateral support rod is properly abutted. Attached Figure Description

[0022] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the drilling mechanism of the present invention;

[0025] Figure 3 This is a partial cross-sectional view of the present invention;

[0026] Figure 4 yes Figure 3 A magnified view of a portion of the area along direction A;

[0027] Figure 5 This is a schematic diagram of the positioning mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the clamping mechanism of the present invention;

[0029] Figure 7 yes Figure 6 A magnified view of a portion of the image from direction B;

[0030] Figure 8 This is a schematic diagram of the drilling process of the present invention;

[0031] Figure 9 This is a schematic diagram of the clamping head of the present invention;

[0032] In the diagram: 1-Frame, 11-Guide rail, 2-Positioning mechanism, 21-Rotating motor, 22-Support frame, 221-Slide groove, 23-Guide column, 231-Power compartment, 24-Sliding sleeve, 25-Moving block, 26-Abutting plate, 27-Connecting rod, 28-Electric push rod, 3-Clamping mechanism, 31-Fixing frame, 32-Pressure push rod, 33-Pressure head, 331-Protective shell, 3311-Receiving cavity, 3312-Slide rail, 332-Slider, 333-Side support rod, 334-Reset spring, 4-Drilling mechanism, 41-First motor, 42-Lead screw, 43-Adjusting seat, 44-Hydraulic cylinder, 45-Sliding seat, 46-Second motor, 47-Drill bit. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] The present invention provides the following technical solution:

[0035] like Figure 1 , Figure 8 As shown, the drilling device includes a frame 1, a positioning mechanism 2, a clamping mechanism 3, and a drilling mechanism 4. The positioning mechanism 2 is fixedly connected to the frame 1 and is used to position the motor housing. The clamping mechanism 3 is fixedly connected to the positioning mechanism 2. The frame 1 is provided with a guide rail 11, and the drilling mechanism 4 is slidably connected to the guide rail 11.

[0036] The frame 1 provides stable support for each mechanism to prevent shaking during workpiece processing. The workpiece processed in this invention is a motor housing. First, the workpiece to be processed is placed on the positioning mechanism 2. The positioning mechanism 2 positions the workpiece based on its inner ring. Then, the clamping mechanism 3 is activated to cooperate with the positioning mechanism 2 to fix the motor housing on the drilling device. Finally, the drilling mechanism 4 is activated to drill the mounting holes on the end face of the motor housing. After drilling is completed, the clamping mechanism 3 and the positioning mechanism 2 are released, and the workpiece can be removed.

[0037] like Figure 3 , Figure 4 , Figure 5 As shown, the positioning mechanism 2 includes a rotary motor 21, a support frame 22, a guide column 23, a sliding sleeve 24, a moving block 25, an abutment plate 26, and a connecting rod 27. The rotary motor 21 is fixedly connected to the frame 1, and the output end of the rotary motor 21 is connected to the support frame 22 for transmission. The guide column 23 is fixedly connected to the support frame 22, and the sliding sleeve 24 is slidably connected to the guide column 23. A power compartment 231 is provided inside the guide column 23, and an electric push rod 28 is installed inside the power compartment 231. The output end of the electric push rod 28 is fixedly connected to the inner wall of the sliding sleeve 24. A sliding groove 221 is provided on the support frame 22, and the moving block 25 is slidably connected to the sliding groove 221. The abutment plate 26 is fixedly connected to the moving block 25, and several sets of abutment plates 26 are evenly arranged along the circumference of the sliding sleeve 24. One end of the connecting rod 27 is hinged to the sliding sleeve 24, and the other end of the connecting rod 27 is hinged to the abutment plate 26.

[0038] Before drilling, the inner ring and two end faces of the cast motor housing blank are pre-milled to ensure a standard circular inner ring with higher precision than the outer ring, which can serve as a positioning reference. During machining, the motor housing is first fitted onto the guide post 23, with the end face of the motor housing abutting against the plane of the support frame 22. Then, the electric push rod 28 in the power compartment 231 is activated, causing the sliding sleeve 24 to move downward along the guide post 23. Driven by the connecting rod 27, the moving block 25 moves outward along the slide groove 221, thereby causing the abutment plate 26 to expand outward around the guide post 23 and abut against the inner wall of the motor housing. The abutment plate 26 is arranged circumferentially around the sliding sleeve 24. Therefore, the expanded abutment plates 26 can position the inner ring axis of the motor housing together with the axis of the guide post 23. When machining the mounting holes on the end face of the motor housing, the support frame 22 is continuously rotated by rotating the motor 21, and the drilling mechanism 4 moves up and down to perform drilling operations. In this way, the circle formed by the several mounting holes machined on the end face of the motor housing is concentric with the inner ring of the motor housing. Therefore, when the end cover is installed on the motor housing, the coaxiality of the shaft hole on the end cover and the inner ring of the motor housing can be kept consistent, which improves the machining accuracy of the mounting holes.

[0039] like Figure 5 As shown, the side of the abutment plate 26 away from the sliding sleeve 24 is an arc-shaped surface.

[0040] One side of the arc-shaped surface of the abutment plate 26 abuts against the inner ring of the motor housing. The arc-shaped surface can increase the contact area between the abutment plate 26 and the motor housing, increase the friction, prevent relative movement during the positioning process, and also play a role in pre-clamping the motor housing.

[0041] like Figure 5-7 As shown, the clamping mechanism 3 includes a fixed frame 31, a pressing push rod 32, and a pressing head 33. The fixed frame 31 is fastened to the support frame 22, the pressing push rod 32 is fastened to the fixed frame 31, and the output end of the pressing push rod 32 passes through the fixed frame 31 and is connected to the pressing head 33 for transmission.

[0042] The fixed frame 31 is fixed on the support frame 22 to provide support for the clamping mechanism 3. After the positioning mechanism 2 completes the positioning, the pressing push rod 32 is activated, which drives the pressing head 33 to move toward the workpiece and presses the pressing head 33 onto the workpiece, thereby fixing the workpiece and preventing the workpiece from shaking during drilling operations.

[0043] like Figure 6 , Figure 7 , Figure 9 As shown, the clamping head 33 includes a protective shell 331, a slider 332, a lateral support rod 333, and a return spring 334. The protective shell 331 is fastened to the output end of the clamping push rod 32. The protective shell 331 has a receiving cavity 3311 and a slide 3312. The receiving cavity 3311 communicates with the slide 3312. The slider 332 is slidably connected to the receiving cavity 3311. One end of the return spring 334 is fastened to the slider 332, and the other end of the return spring 334 is fastened to the inner wall of the receiving cavity 3311. The lateral support rod 333 is slidably connected to the slide 3312. The receiving cavity 3311 is filled with hydraulic oil.

[0044] However, the outer side of the motor housing has heat dissipation fins. If the clamping head 33 is directly clamped onto the heat dissipation fins, the fins, being thin and low in strength, are easily damaged. By designing the size of the clamping head 33 to be smaller than the gap between the heat dissipation fins, during clamping, the clamping head 33 inserts into the gap between the heat dissipation fins, and the clamping push rod 32 pushes the protective shell 331 towards the workpiece. The slider 332 abuts against the workpiece surface and receives a reaction force, thereby driving the slider 332 along the receiving cavity 3. When 311 slides, the return spring 334 is compressed, and the hydraulic oil in the receiving cavity 3311 is compressed, thereby driving the lateral support rod 333 to slide along the slide rail 3312 to both sides, thereby abutting against the side of the heat dissipation fins and playing a lateral support role, thereby offsetting the axial force generated during drilling and preventing the workpiece from deflecting during drilling. After clamping is completed, under the action of the return spring 334, the slider 332 moves upward, and the lateral support rod 333 gradually retracts under the action of the hydraulic oil pressure in the receiving cavity 3311.

[0045] like Figure 7 , Figure 9 As shown, slide rail 3312 is inclined, and the inclination direction of slide rail 3312 is towards the workpiece.

[0046] To prevent the lateral support rod 333 from bending the heat sink fins, the slide rail 3312 is tilted. This way, when the lateral support rod 333 moves outward along the slide rail 3312, it will abut against the connection between the heat sink fins and the motor housing. This connection is thicker and can withstand greater pressure, preventing the heat sink fins from bending.

[0047] like Figure 7 , Figure 9 As shown, the receiving cavity 3311 is provided with a contraction section, which is connected to the slide 3312. The diameter of the slide 3312 is one-sixth of the diameter of the receiving cavity 3311.

[0048] The contraction section reduces the volume within the receiving cavity 3311, thus reducing the amount of hydraulic oil used. The distance the lateral support rod 333 moves must be greater than the distance the slider 332 moves downward to ensure that the lateral support rod 333 abuts against the heat dissipation fins. Utilizing the incompressible property of hydraulic oil, since the diameter of the slide 3312 is smaller than the diameter of the receiving cavity 3311, when the slider 332 moves downward along the receiving cavity 3311, the lateral support rod 333 will move much further under the push of the hydraulic oil, amplifying the displacement and ensuring that the lateral support rod 333 abuts in place.

[0049] like Figure 1 , Figure 2As shown, the drilling mechanism 4 includes a first motor 41, a lead screw 42, an adjusting seat 43, a hydraulic cylinder 44, a sliding seat 45, a second motor 46, and a drill bit 47. The first motor 41 is fixedly connected to the frame 1. The output end of the first motor 41 is drivenly connected to the lead screw 42. The lead screw 42 is drivenly connected to the adjusting seat 43. The adjusting seat 43 is slidably connected to the guide rail 11. The hydraulic cylinder 44 is fixedly connected to the adjusting seat 43. The output end of the hydraulic cylinder 44 is drivenly connected to the sliding seat 45. The second motor 46 is fixedly connected to the sliding seat 45. The output end of the second motor 46 is drivenly connected to the drill bit 47.

[0050] The first motor 41 starts, driving the lead screw 42 to rotate, thereby driving the adjusting seat 43 to move up and down along the guide rail 11, adjusting the drilling mechanism 4 to a suitable height. When drilling is required, the hydraulic cylinder 44 is first started, driving the sliding seat 45 to move, thereby driving the second motor 46 and the drill bit 47 to the position where drilling is required. Then the second motor 46 is started, driving the drill bit 47 to rotate. Then the first motor 41 starts, driving the adjusting seat 43 to move down, thereby driving the drill bit 47 to move down to perform drilling operations.

[0051] The working principle of this invention is as follows: First, the motor housing is fitted onto the guide post 23, with the end face of the motor housing abutting against the plane of the support frame 22. Then, the electric push rod 28 inside the power compartment 231 is activated, causing the sliding sleeve 24 to move downward along the guide post 23. Driven by the connecting rod 27, the moving block 25 moves outward along the sliding groove 221, thereby causing the abutment plate 26 to expand outward around the guide post 23 and abut against the inner wall of the motor housing. The abutment plate 26 is arranged circumferentially around the sliding sleeve 24, so the expanded abutment plates 26 can position the inner ring axis of the motor housing together with the axis of the guide post 23. After the positioning mechanism 2 completes the positioning, the pressing push rod 32 is activated, causing the pressing head 33 to move towards the workpiece, pressing the pressing head 33 against the workpiece. The pressing push rod 32 pushes the protective shell 331 towards the workpiece. As the workpiece moves, the slider 332 abuts against the workpiece surface and receives a reaction force, thereby driving the slider 332 to slide along the receiving cavity 3311. The return spring 334 is compressed, and the hydraulic oil in the receiving cavity 3311 is compressed, thereby driving the lateral support rod 333 to slide along the slide rail 3312 to both sides, thereby abutting against the side of the heat dissipation fins and playing a lateral support role, thus counteracting the axial force generated during drilling and preventing the workpiece from deflecting during drilling. In this way, when machining the mounting holes on the end face of the motor housing, the motor 21 drives the support frame 22 to rotate continuously at a certain angle, and the drilling mechanism 4 moves up and down to perform drilling operations. In this way, the circle formed by the several mounting holes machined on the end face of the motor housing is concentric with the inner ring of the motor housing. After drilling is completed, the clamping mechanism 3 and the positioning mechanism 2 can be released to remove the workpiece.

[0052] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0053] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drilling device with automatic positioning function for machining motor parts, characterized in that: The drilling device includes a frame (1), a positioning mechanism (2), a clamping mechanism (3), and a drilling mechanism (4). The positioning mechanism (2) is fixedly connected to the frame (1) and is used to position the motor housing. The clamping mechanism (3) is fixedly connected to the positioning mechanism (2). The frame (1) is provided with a guide rail (11), and the drilling mechanism (4) is slidably connected to the guide rail (11). The positioning mechanism (2) includes a rotating motor (21), a support frame (22), a guide column (23), a sliding sleeve (24), a moving block (25), a contact plate (26), and a connecting rod (27). The rotating motor (21) is fixedly connected to the frame (1), and the output end of the rotating motor (21) is connected to the support frame (22) for transmission. The guide column (23) is fastened to the support frame (22), the sliding sleeve (24) is slidably connected to the guide column (23), the guide column (23) is provided with a power compartment (231), the power compartment (231) is installed with an electric push rod (28), the output end of the electric push rod (28) is fastened to the inner wall of the sliding sleeve (24), the support frame (22) is provided with a sliding groove (221), the moving block (25) is slidably connected to the sliding groove (221), the abutment plate (26) is fastened to the moving block (25), the abutment plate (26) is evenly arranged with several groups along the circumference of the sliding sleeve (24), one end of the connecting rod (27) is hinged to the sliding sleeve (24), and the other end of the connecting rod (27) is hinged to the abutment plate (26); The clamping mechanism (3) includes a fixed frame (31), a pressing push rod (32) and a pressing head (33). The fixed frame (31) is fastened to the support frame (22), the pressing push rod (32) is fastened to the fixed frame (31), and the output end of the pressing push rod (32) passes through the fixed frame (31) and is connected to the pressing head (33) in a transmission connection. The clamping head (33) includes a protective shell (331), a slider (332), a lateral support rod (333), and a return spring (334). The protective shell (331) is fastened to the output end of the clamping push rod (32). The protective shell (331) is provided with a receiving cavity (3311) and a slide (3312). The receiving cavity (3311) is connected to the slide (3312). The slider (332) is slidably connected to the receiving cavity (3311). One end of the return spring (334) is fastened to the slider (332), and the other end of the return spring (334) is fastened to the inner wall of the receiving cavity (3311). The lateral support rod (333) is slidably connected to the slide (3312). The receiving cavity (3311) is filled with hydraulic oil.

2. A drilling device with automatic positioning function for machining motor parts according to claim 1, characterized in that: The side of the abutment plate (26) away from the sliding sleeve (24) is an arc-shaped surface.

3. A drilling device with automatic positioning function for machining motor parts according to claim 1, characterized in that: The slide rail (3312) is inclined, and the inclined direction of the slide rail (3312) is towards the workpiece.

4. A drilling device with automatic positioning function for machining motor parts according to claim 3, characterized in that: The receiving cavity (3311) is provided with a contraction section, which is connected to the slide (3312). The diameter of the slide (3312) is one-sixth of the diameter of the receiving cavity (3311).

5. A drilling device with automatic positioning function for machining motor parts according to claim 1, characterized in that: The drilling mechanism (4) includes a first motor (41), a lead screw (42), an adjusting seat (43), a hydraulic cylinder (44), a sliding seat (45), a second motor (46), and a drill bit (47). The first motor (41) is fastened to the frame (1), and the output end of the first motor (41) is driven to the lead screw (42). The lead screw (42) is driven to the adjusting seat (43), and the adjusting seat (43) is slidably connected to the guide rail (11). The hydraulic cylinder (44) is fastened to the adjusting seat (43), and the output end of the hydraulic cylinder (44) is driven to the sliding seat (45). The second motor (46) is fastened to the sliding seat (45), and the output end of the second motor (46) is driven to the drill bit (47).

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