A quick-positioning drilling mold for AC motor housing

Abstract

This utility model relates to the technical field of auxiliary devices for drilling motor housings, and discloses a quick-positioning drilling mold for AC motor housings. It includes a base, a cross plate fixedly connected to the top of the base, several trapezoidal grooves on the top of the cross plate, trapezoidal blocks slidably connected inside the trapezoidal grooves, a rotating shaft rotatably connected to the inner bottom surface of the base, and a drive assembly capable of driving the rotating shaft to rotate on the outer wall of the base. This utility model, through the coordinated use of the cross plate, trapezoidal blocks, drive assembly, and connecting assembly, achieves automatic centering and precise clamping of the motor housing through the collaborative work of the rotating shaft and turntable, effectively fixing the motor housing and avoiding the loosening problems caused by vibration or external forces in traditional clamps. Furthermore, this device not only improves the clamping accuracy of the motor housing but also adapts to housings of different sizes and shapes, ensuring positioning flexibility and wide applicability.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary devices for drilling motor housings, and in particular to a quick-positioning drilling mold for AC motor housings. Background Technology

[0002] In modern motor manufacturing, drilling the housing is a critical machining step. Motor housings typically require drilling at precise, designated locations to accommodate bolt fastening, ventilation holes, or the installation of other motor components. This process demands extremely high precision and places significant demands on production efficiency and environmental control.

[0003] Traditional drilling molds typically rely on fixed fixtures for positioning. While this method can achieve a certain level of positioning accuracy, it has several drawbacks. Because motor housings are often complex in shape and subject to mechanical vibrations or external forces during drilling, traditional fixtures cannot achieve completely stable positioning, easily leading to deviations in the drilling position. Furthermore, during drilling, especially when drilling thin metal housings, the fixtures may fail to effectively hold the housing in place, causing it to loosen or deform, thus affecting drilling accuracy. Additionally, if the debris generated during drilling is not cleaned up promptly, it will not only pollute the environment but may also enter the mold, causing wear on mechanical parts and shortening the equipment's lifespan.

[0004] Therefore, a quick-positioning drilling mold for AC motor housing is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-positioning drilling mold for AC motor housings.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick positioning drilling mold for an AC motor housing, comprising a base, a cross plate fixedly connected to the top of the base, a plurality of trapezoidal grooves opened on the top of the cross plate, trapezoidal blocks slidably connected inside the trapezoidal grooves, a rotating shaft rotatably connected to the inner bottom surface of the base, a driving assembly capable of driving the rotating shaft to rotate provided on the outer wall of the base, a connecting assembly provided on the outer wall of the rotating shaft, a clamping assembly provided on the top of the trapezoidal blocks, a processing table fixedly connected to the top of the cross plate, a plurality of processing holes opened on the top of the processing table, a dust collection hopper provided at the bottom of the plurality of processing holes, and a dust collection assembly provided on the outer wall of the processing table.

[0007] The internal cavity of the base is used to accommodate the worm gear transmission system, providing mechanical movement space. The symmetrically distributed trapezoidal slots of the cross plate realize four-way synchronous linear motion constraint. The cross section of the trapezoidal slot is trapezoidal, which restricts the trapezoidal block to slide only in a straight line along the slot to prevent offset. The trapezoidal block is the core transmission component that converts the rotational motion of the turntable into radial linear motion. The dust collection hopper is located directly below the machining hole. The flared design expands the adsorption range and ensures the debris recovery rate.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a drive rod rotatably mounted on the outer wall of the base, one end of which extends into the interior of the base and is fixedly connected to a worm gear.

[0010] One end of the worm gear is rotatably connected to the inner wall of the base, and the drive rod is exposed outside the base. The operator controls the opening and closing of the clamping mechanism by rotating the drive rod. The worm gear transmits the rotational motion of the drive rod to the worm wheel, and the self-locking characteristics of the worm wheel and worm gear ensure reliable fixation after clamping.

[0011] As a further description of the above technical solution:

[0012] The outer wall of the worm is meshed with a worm wheel.

[0013] The worm gear is fixedly connected to the rotating shaft inside. The worm gear meshes with the worm, converting the horizontal rotation into vertical torque, allowing the rotating shaft to pass through the base and drive the turntable to rotate, thus realizing power transmission.

[0014] As a further description of the above technical solution:

[0015] The connecting assembly includes a turntable fixedly sleeved on the outer wall of the rotating shaft, and the outer wall of the turntable has an installation groove.

[0016] The turntable is fixed on the rotating shaft and rotates synchronously with the shaft. Multiple mounting slots are opened on the surface, and arc plates are hinged in the slots to convert the rotational motion of the turntable into the oscillation of the arc plates.

[0017] As a further description of the above technical solution:

[0018] The mounting slot has several curved plates hinged inside.

[0019] One end of the arc plate is hinged to the top of the trapezoidal block, and the two ends of the arc plate are respectively hinged to the turntable and the trapezoidal block, converting the rotational motion into the linear displacement of the trapezoidal block. The hinge design allows the arc plate to adapt to changes in angle and avoids motion interference.

[0020] As a further description of the above technical solution:

[0021] The clamping assembly includes an L-shaped block fixedly installed on the top of the trapezoidal block, and an arc-shaped rubber block is fixedly installed at one end of the L-shaped block.

[0022] The L-shaped block connects the trapezoidal block and the arc-shaped rubber block, transmitting clamping force to the workpiece surface. The arc-shaped rubber block is made of highly elastic rubber material, providing friction and adapting to unevenness on the outer shell surface. Its arc-shaped contour fits the outer circle of the motor shell, achieving uniform clamping at four points.

[0023] As a further description of the above technical solution:

[0024] The dust collection assembly includes a collection box fixedly installed on the outer wall of the processing table, and a collection pipe is fixedly connected to the side of the collection box near the processing table.

[0025] One end of the collection tube is fixedly connected to the dust collection hopper, and the collection tube connects the dust collection hopper and the collection box. It is made of wear-resistant PVC material to prevent wear from metal debris.

[0026] As a further description of the above technical solution:

[0027] An air intake fan is fixedly installed on the inner wall of the collection box, and a filter screen is fixedly installed at the bottom of the air intake fan.

[0028] The suction fan is a centrifugal fan that generates negative pressure when it rotates, and the suction covers all the processing hole areas. The filter screen is a multi-layer stainless steel filter screen to intercept debris.

[0029] This utility model has the following beneficial effects:

[0030] 1. Compared with existing technologies, this rapid positioning drilling mold for AC motor housing, through the coordinated use of structures such as cross plates, trapezoidal blocks, drive components, and connecting components, can achieve automatic centering and precise clamping of the motor housing through the coordinated work of mechanical structures such as rotating shafts and turntables. This effectively fixes the motor housing and avoids the loosening problem caused by vibration or external force in traditional clamps. Moreover, this equipment not only improves the clamping accuracy of the motor housing, but also can adapt to housings of different sizes and shapes, ensuring the flexibility and wide applicability of positioning.

[0031] 2. Compared with existing technologies, this quick-positioning drilling mold for AC motor housing, through the coordinated use of structures such as a processing table, processing holes, dust collection hopper, and dust collection components, can effectively collect the debris generated during the drilling process. By quickly sucking the debris into the collection box and blocking impurities through the filter screen, the spillage and pollution of debris are reduced. This not only ensures a clean processing environment but also prevents debris from entering the mold, reducing equipment wear and ensuring the long-term stable operation of the mold. Attached Figure Description

[0032] Figure 1This is a three-dimensional schematic diagram of the overall structure of a quick-positioning drilling mold for an AC motor housing proposed in this utility model.

[0033] Figure 2 This is a three-dimensional schematic diagram of the drive assembly structure for the rapid positioning and drilling mold rotation of an AC motor housing proposed in this utility model.

[0034] Figure 3 This is a three-dimensional schematic diagram of the dust collection component structure of a quick-positioning drilling mold for an AC motor housing proposed in this utility model.

[0035] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0036] Figure 5 This is an exploded three-dimensional schematic diagram of a rapid positioning drilling mold for an AC motor housing proposed in this utility model.

[0037] Figure 6 This is a three-dimensional schematic diagram of the connecting assembly structure of a quick-positioning drilling mold for an AC motor housing proposed in this utility model.

[0038] Legend:

[0039] 1. Base; 2. Cross plate; 3. Trapezoidal groove; 4. Trapezoidal block; 5. Rotating shaft; 6. Machining table; 7. Machining hole; 8. Dust collection hopper; 9. Drive rod; 10. Worm gear; 11. Worm wheel; 12. Turntable; 13. Mounting slot; 14. Arc plate; 15. L-shaped block; 16. Arc-shaped rubber block; 17. Collection box; 18. Collection pipe; 19. Suction fan; 20. Filter screen. Detailed Implementation

[0040] 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.

[0041] Reference Figure 1-6This utility model provides a quick-positioning drilling mold for an AC motor housing: It includes a base 1, a cross plate 2 fixedly connected to the top of the base 1, several trapezoidal grooves 3 formed on the top of the cross plate 2, trapezoidal blocks 4 slidably connected inside the trapezoidal grooves 3, a rotating shaft 5 rotatably connected to the inner bottom surface of the base 1, a driving assembly capable of driving the rotating shaft 5 to rotate provided on the outer wall of the base 1, a connecting assembly provided on the outer wall of the rotating shaft 5, a clamping assembly provided on the top of the trapezoidal blocks 4, a processing table 6 fixedly connected to the top of the cross plate 2, several processing holes 7 formed on the top of the processing table 6, a dust collection hopper 8 provided at the bottom of the several processing holes 7, a dust collection assembly provided on the outer wall of the processing table 6, and an internal cavity in the base 1 for accommodating the worm gear 11 and worm 10 transmission system, providing mechanical movement space. The symmetrically distributed trapezoidal grooves 3 of the cross plate 2... The current four-way synchronous linear motion constraint, the trapezoidal groove 3 has a trapezoidal cross section, restricts the trapezoidal block 4 to slide only in a straight line along the groove to prevent offset. The trapezoidal block 4 is the core transmission component that converts the rotational motion of the turntable 12 into radial linear motion. The dust collection hopper 8 is located directly below the machining hole 7. The suction range is expanded by the flared mouth design to ensure the debris recovery rate. Through the coordinated use of structures such as the cross plate 2, trapezoidal block 4, drive components and connecting components, the automatic centering and precise clamping of the motor housing can be achieved through the coordinated work of mechanical structures such as the rotating shaft 5 and the turntable 12. This effectively fixes the motor housing and avoids the loosening problem caused by vibration or external force of traditional clamps. Moreover, this equipment not only improves the clamping accuracy of the motor housing, but also can adapt to housings of different sizes and shapes, ensuring the flexibility and wide applicability of positioning.

[0042] The drive assembly includes a drive rod 9 rotatably mounted on the outer wall of the base 1. One end of the drive rod 9 penetrates into the interior of the base 1 and is fixedly connected to a worm gear 10. One end of the worm gear 10 is rotatably connected to the inner wall of the base 1. The drive rod 9 protrudes from the base 1. The operator controls the opening and closing of the clamping mechanism by rotating the drive rod 9. The worm gear 10 transmits the rotational motion of the drive rod 9 to the worm wheel 11. The self-locking characteristic of the worm wheel 11 and the worm gear 10 ensures reliable fixation after clamping. The worm wheel 11 is meshed with the outer wall of the worm gear 10. The interior of the worm wheel 11 is fixedly connected to the rotating shaft 5. The worm wheel 11 meshes with the worm gear 10, converting the horizontal rotation into vertical torque, causing the rotating shaft 5 to penetrate the base 1 and drive the turntable 12 to rotate, thus realizing power transmission.

[0043] The connecting assembly includes a turntable 12 fixedly sleeved on the outer wall of the rotating shaft 5. The outer wall of the turntable 12 has a mounting groove 13. The turntable 12 is fixed on the rotating shaft 5 and rotates synchronously with the rotating shaft 5. Multiple mounting grooves 13 are opened on the surface. Arc plates 14 are hinged in the grooves to convert the rotational motion of the turntable 12 into the swing of the arc plates 14. Several arc plates 14 are hinged inside the mounting grooves 13. One end of the arc plate 14 is hinged to the top of the trapezoidal block 4. The two ends of the arc plate 14 are respectively hinged to the turntable 12 and the trapezoidal block 4, converting the rotational motion into the linear displacement of the trapezoidal block 4. The hinge design allows the arc plates 14 to adapt to changes in angle and avoid motion interference.

[0044] The clamping assembly includes an L-shaped block 15 fixedly installed on the top of the trapezoidal block 4. An arc-shaped rubber block 16 is fixedly installed at one end of the L-shaped block 15. The L-shaped block 15 connects the trapezoidal block 4 and the arc-shaped rubber block 16, transmitting clamping force to the workpiece surface. The arc-shaped rubber block 16 is made of highly elastic rubber material, providing friction and adapting to unevenness of the outer shell surface. Its arc-shaped contour fits the outer circle of the motor shell, achieving uniform clamping at four points.

[0045] The dust collection assembly includes a collection box 17 fixedly installed on the outer wall of the processing table 6. A collection pipe 18 is fixedly connected to the side of the collection box 17 closest to the processing table 6. One end of the collection pipe 18 is fixedly connected to the dust collection hopper 8. The collection pipe 18 connects the dust collection hopper 8 and the collection box 17. It is made of wear-resistant PVC material to prevent metal debris from wearing it. An air suction fan 19 is fixedly installed on the inner wall of the collection box 17. A filter screen 20 is fixedly installed at the bottom of the air suction fan 19. The air suction fan 19 is a centrifugal fan. Rotation generates negative pressure, and the suction covers all areas of the processing holes 7. The filter screen 20 is a multi-layer stainless steel filter screen 20 to intercept debris.

[0046] Working principle: First, place the motor housing to be drilled at the machining hole 7 of the machining table 6. Then, rotate the drive rod 9 to drive the worm gear 10 to rotate, which in turn drives the worm wheel 11 to rotate. This allows the worm wheel 11 to synchronously drive the fixed rotating shaft 5 to rotate. The rotation of the rotating shaft 5 drives the turntable 12 to rotate, causing the arc plate 14 hinged on the mounting groove 13 of the turntable 12 to move. At this time, under the limit of the trapezoidal block 4, the rotational movement of the arc plate 14 is restricted to linear movement and moves along the trapezoidal groove 3 on the cross plate 2. At the same time, it synchronously drives the L-shaped block 15 to move, so that the arc rubber block 16 can position and fix the motor housing, which is convenient for subsequent drilling operations. Due to the elasticity and good adaptability of rubber, it can effectively prevent the housing from loosening and deformation, ensuring the stability of the housing throughout the drilling process. At the same time, this design not only improves the positioning accuracy of the motor housing, but also adapts to housings of different sizes and shapes.

[0047] Before further processing, the device is connected to an external power source, and the suction fan 19 is started, causing the internal motor to drive the fan blades to rotate and generate suction. This allows the dust collection hopper 8 located at the bottom of the processing hole 7 to suck up impurities. At this time, the debris generated during drilling enters the dust collection hopper 8 through the processing hole 7, and then enters the collection box 17 through the collection pipe 18. At this time, the debris and impurities are blocked by the filter screen 20 and gravity, and fall into the bottom of the collection box 17, thereby effectively preventing debris from spreading to the working environment and preventing debris from entering the mold, reducing equipment wear and ensuring the long-term stable use of the mold.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A quick positioning drilling jig for an alternating current motor housing comprising a base (1), characterized in that: A cross plate (2) is fixedly connected to the top of the base (1). Several trapezoidal grooves (3) are opened on the top of the cross plate (2). A trapezoidal block (4) is slidably connected inside the trapezoidal groove (3). A rotating shaft (5) is rotatably connected to the inner bottom surface of the base (1). A driving component capable of driving the rotating shaft (5) to rotate is provided on the outer wall of the base (1). A connecting component is provided on the outer wall of the rotating shaft (5). A clamping component is provided on the top of the trapezoidal block (4). A processing table (6) is fixedly connected to the top of the cross plate (2). Several processing holes (7) are opened on the top of the processing table (6). A dust collection hopper (8) is provided at the bottom of several processing holes (7). A dust collection component is provided on the outer wall of the processing table (6).

2. A quick positioning drill jig for an AC motor housing according to claim 1, characterized in that: The drive assembly includes a drive rod (9) rotatably mounted on the outer wall of the base (1), one end of the drive rod (9) penetrating into the interior of the base (1) and fixedly connected to a worm gear (10).

3. The quick positioning drilling mold for an AC motor housing according to claim 2, characterized in that: The outer wall of the worm (10) is meshed with a worm wheel (11).

4. The quick positioning drilling mold for an AC motor housing according to claim 1, characterized in that: The connecting assembly includes a turntable (12) fixedly sleeved on the outer wall of the rotating shaft (5), and the outer wall of the turntable (12) is provided with an installation groove (13).

5. The quick positioning drilling mold for an AC motor housing according to claim 4, characterized in that: The mounting groove (13) has several arc plates (14) hinged inside.

6. The quick positioning drilling mold for an AC motor housing according to claim 1, characterized in that: The clamping assembly includes an L-shaped block (15) fixedly installed on the top of the trapezoidal block (4), and an arc-shaped rubber block (16) is fixedly installed at one end of the L-shaped block (15).

7. The quick positioning drilling mold for an AC motor housing according to claim 1, characterized in that: The dust collection assembly includes a collection box (17) fixedly installed on the outer wall of the processing table (6), and a collection pipe (18) is fixedly connected to the side of the collection box (17) near the processing table (6).

8. A quick-positioning drilling mold for an AC motor housing according to claim 7, characterized in that: An air intake fan (19) is fixedly installed on the inner wall of the collection box (17), and a filter screen (20) is fixedly installed at the bottom of the air intake fan (19).

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