Motor worm stamping equipment

Abstract

The utility model belongs to the technical field of machining and forming of automobile parts, and particularly relates to motor worm stamping equipment which comprises a bottom plate, a stamping mechanism and a clamping mechanism, and the stamping mechanism is arranged on the bottom plate; the clamping mechanism is arranged on the bottom plate and located at the stamping output end of the stamping mechanism. The clamping mechanism is used for clamping the two ends of a worm to be machined and driving the worm to rotate in the stamping process. One set of clamping ends of the clamping mechanism is provided with a cooling assembly, and the cooling assembly is used for outputting low-temperature gas in the axial direction of the worm. The cooling assembly for spraying the cooling gas to the whole worm is arranged at the clamping end, so that the heat conduction area of the worm is greatly increased in the stamping machining process, the heat conduction efficiency of the worm in the machining process is effectively improved, efficient low-temperature machining is achieved, and the machining deformation precision of the worm is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts processing and forming technology, and in particular relates to a motor worm gear stamping equipment. Background Technology

[0002] Existing worm gear stamping technology primarily utilizes a die to apply pressure to a metal blank, directly forming the worm gear tooth structure through plastic deformation. This is a type of near-net-shape forming technology. By controlling material flow through precisely designed dies and optimized stamping parameters, this process can achieve the initial forming of the worm gear tooth profile in a single operation, reducing subsequent machining allowances and making it suitable for mass production. Compared to traditional turning or milling processes, stamping offers higher efficiency and material utilization. However, it requires addressing issues such as tooth profile accuracy control, die wear, and material springback. Typically, heat treatment and subsequent finishing processes (such as grinding) are combined to ensure the worm gear tooth profile accuracy and surface quality.

[0003] The existing cooling method of directly spraying water onto the machining position in worm gear stamping has obvious defects: the impact of water flow can easily interfere with the plastic flow of the material, resulting in incomplete filling of the tooth profile or micro-cracks on the surface; residual moisture may cause workpiece corrosion or mix with the lubricant and fail, aggravating friction and wear between the die and the blank; at the same time, the heat conduction efficiency of traditional water spray cooling is limited, making it difficult to accurately control the die temperature, causing local overheating or uneven cooling, affecting the forming accuracy and die life. Utility Model Content

[0004] The purpose of this invention is to provide a motor worm gear stamping equipment, which aims to solve the technical problem in the existing technology of worm gear processing using water injection to achieve low-temperature cutting, which has limited water cooling efficiency and affects forming accuracy.

[0005] To achieve the above objectives, this utility model provides a motor worm gear stamping device, including a base plate, a stamping mechanism, and a clamping mechanism. The stamping mechanism is disposed on the base plate; the clamping mechanism is disposed on the base plate and located at the stamping output end of the stamping mechanism; wherein, the clamping mechanism is used to clamp both ends of the worm gear to be processed and drive the worm gear to rotate during the stamping process; one set of clamping ends of the clamping mechanism is provided with a cooling component, which is used to output low-temperature gas along the axial direction of the worm gear.

[0006] Optionally, the clamping mechanism includes a first clamping component and a second clamping component, which are distributed on the base plate. A machining position for accommodating the worm gear to be processed is formed between the first clamping component and the second clamping component. Both the first clamping component and the second clamping component are located at the stamping output end of the stamping mechanism.

[0007] Optionally, the stamping mechanism includes a mounting bracket and a stamping spindle. The mounting bracket is disposed on the base plate, and the stamping spindle is disposed on the mounting bracket. The output end of the stamping spindle can extend toward the base plate. The first clamping assembly and the second clamping assembly are both located inside the mounting bracket and below the stamping spindle.

[0008] Optionally, the first clamping assembly includes a first mounting base and a tapered tip. The first mounting base is disposed on the base plate, and the tapered tip is fixedly disposed on the first mounting base and used to abut against the end of the worm gear to be processed. The tapered tip is coaxially and collinearly disposed with the clamping center of the second clamping assembly.

[0009] Optionally, the second clamping assembly includes a clamping claw disk and a rotating assembly. The rotating assembly is fixedly mounted on the base plate. The clamping claw disk is located at the output end of the rotating assembly. The cooling assembly is located at the output end of the clamping claw disk. The clamping groove of the clamping claw disk is coaxially and collinearly arranged with the clamping center of the first clamping assembly. The output end of the cooling assembly faces the clamping groove of the clamping claw disk.

[0010] Optionally, the clamping jaw disk includes a rotating disk, movable jaws, and adjusting screws. The rotating disk is fixedly disposed at the output end of the rotating assembly. The number of movable jaws and adjusting screws is equal. There are multiple sets of movable jaws, which are slidably connected to the rotating disk. The multiple sets of movable jaws are evenly distributed circumferentially at intervals along the midpoint of the rotating disk. The adjusting screw is rotatably connected to the rotating disk. The movable jaws are provided with threaded holes. The external thread of the adjusting screw is adapted to the thread of the threaded hole. The cooling assembly passes through the adjusting screw.

[0011] Optionally, the cooling assembly includes an air pipe and a fixed bushing. The adjusting screw is concentrically provided with a mounting shaft hole along its length. The air pipe is disposed in the mounting shaft hole. A gap is provided between the outer wall of the air pipe and the inner wall of the mounting shaft hole. The fixed bushing is fixedly disposed at the end of the threaded hole of the movable jaw away from the adjusting screw. The inner ring of the fixed bushing is slidably connected to the outer wall of the air pipe.

[0012] Optionally, the rotating disk is configured as a circular flat plate, with the output ends of all the air pipes pointing towards the center of the rotating disk. The cooling gas output from all the air pipes converges and is blocked by the middle part of the rotating disk, moving towards the worm gear to be processed.

[0013] Optionally, the fixed bushing is fixedly installed in the threaded hole of the movable gripper, and the outer side wall edge of the fixed bushing is sealed to the inner wall of the threaded hole to form a sealing structure to prevent cooling gas from flowing back into the threaded hole.

[0014] Optionally, the movable gripper is provided with an air guide groove, which extends along the length of the worm gear to be tested and is located on the side of the fixed bushing opposite to the adjusting screw.

[0015] The motor worm gear stamping equipment provided in this utility model embodiment has at least one of the following technical effects: After the worm gear is fixed to the output end of the stamping mechanism by the clamping mechanism, during the worm gear processing, the cooling component outputs cooling gas, such as nitrogen, along the length direction of the worm gear, and the cooling gas moves along the length direction of the worm gear; compared with the technical problem of the existing worm gear processing achieving low-temperature cutting by water injection, which has limited water cooling efficiency and affects the forming accuracy, the motor worm gear stamping equipment provided in this utility model embodiment provides a cooling component that sprays cooling gas onto the entire worm gear at the clamping end, which greatly increases the heat conduction area of ​​the worm gear during the stamping process, thereby effectively improving the heat conduction efficiency of the worm gear during the processing, achieving efficient low-temperature processing, and improving the deformation accuracy of the worm gear processing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the motor worm gear stamping equipment provided in an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the clamping claw disk provided in an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional schematic diagram of the clamping claw disk provided in an embodiment of the present utility model.

[0020] Figure 4 A cross-sectional schematic diagram showing the addition of an air guide groove to the clamping claw disk provided in this embodiment of the utility model.

[0021] The following are the labeling elements in the figure:

[0022] 100—Base plate; 200—Stamping mechanism; 300—Clamping mechanism

[0023] 400—Worm gear to be processed; 500—Cooling assembly; 310—First clamping assembly

[0024] 320—Second clamping assembly; 210—Mounting bracket; 220—Pressing spindle

[0025] 311—First mounting base; 312—Conical tip; 330—Clamping claw plate

[0026] 340—Rotating assembly; 331—Rotating disk; 332—Moving gripper

[0027] 333—Adjusting screw; 334—Screw hole; 510—Air tube

[0028] 520—Fixed bushing; 335—Air guide groove. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figures 1-4 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0030] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0033] In one embodiment of this utility model, such as Figures 1-4 As shown, a stamping device for a worm gear to be processed is provided, including a base plate 100, a stamping mechanism 200, and a clamping mechanism 300. The stamping mechanism 200 is disposed on the base plate 100; the clamping mechanism 300 is disposed on the base plate 100 and located at the stamping output end of the stamping mechanism 200; wherein, the clamping mechanism 300 is used to clamp both ends of the worm gear 400 to be processed and drive the worm gear 400 to be processed to rotate during the stamping process; one set of clamping ends of the clamping mechanism 300 is provided with a cooling assembly 500, the cooling assembly 500 being used to output low-temperature gas along the axial direction of the worm gear 400 to be processed.

[0034] In this embodiment, the worm gear 400 to be processed needs to rotate at a low speed along the circumferential direction at a preset angle during the processing. The cutting head of the stamping mechanism 200 is in close contact with the worm gear 400 during the rotation of the worm gear 400, so that a thread of a preset shape is formed on the worm gear 400.

[0035] Specifically, after the worm gear 400 to be processed is fixed to the output end of the stamping mechanism 200 by the clamping mechanism 300, during the processing of the worm gear 400, the cooling component 500 outputs cooling gas, such as nitrogen, along the length direction of the worm gear 400. The cooling gas moves along the length direction of the worm gear 400. Compared with the existing technology where the worm gear 400 is processed by water injection to achieve low-temperature cutting, the water cooling efficiency is limited, which affects the forming accuracy. The motor worm gear stamping equipment provided in this utility model embodiment provides a cooling component 500 that sprays cooling gas onto the entire worm gear 400 at the clamping end. This significantly increases the heat conduction area of ​​the worm gear 400 during the stamping process, thereby effectively improving the heat conduction efficiency of the worm gear 400 during the processing, achieving efficient low-temperature processing, and improving the deformation accuracy of the worm gear 400.

[0036] like Figures 1-4 As shown, in another embodiment of this utility model, the clamping mechanism 300 includes a first clamping component 310 and a second clamping component 320. The first clamping component 310 and the second clamping component 320 are distributed on the base plate 100, and a processing position for accommodating the worm gear 400 to be processed is formed between the first clamping component 310 and the second clamping component 320. Both the first clamping component 310 and the second clamping component 320 are located at the stamping output end of the stamping mechanism 200. The processing position is located directly below the output end of the stamping mechanism 200 and on the moving path of the output end of the stamping mechanism 200.

[0037] like Figures 1-4As shown, in another embodiment of the present invention, the stamping mechanism 200 includes a mounting frame 210 and a stamping spindle 220. The mounting frame 210 is disposed on the base plate 100, and the stamping spindle 220 is disposed on the mounting frame 210. The output end of the stamping spindle 220 can extend toward the base plate 100. The first clamping assembly 310 and the second clamping assembly 320 are both located inside the mounting frame 210 and below the stamping spindle 220.

[0038] In this embodiment, the mounting frame 210 is a gantry frame, and the stamping spindle 220 is mounted on the crossbeam of the mounting frame 210. The mounting frame 210 may also be equipped with a linear slide for driving the multi-axis movement of the stamping spindle 220. During the machining of the worm gear 400 by the stamping spindle 220, the linear slide drives the stamping spindle 220 to move, and in conjunction with the rotation of the worm gear 400, a preset thread structure can be formed.

[0039] like Figures 1-4 As shown, in another embodiment of this utility model, the first clamping assembly 310 includes a first mounting base 311 and a conical tip 312. The first mounting base 311 is disposed on the base plate 100, and the conical tip 312 is fixedly disposed on the first mounting base 311 and used to abut against the end of the worm gear 400 to be processed. The conical tip 312 is coaxially and collinearly arranged with the clamping center of the second clamping assembly 320. The conical tip 312 structure can serve both positioning and support functions. The conical surface forms a stable contact area with the end of the worm gear 400 to be processed, which not only restricts axial movement but also disperses clamping stress through the conical angle design, avoiding end face deformation.

[0040] like Figures 1-4 As shown, in another embodiment of this utility model, the second clamping assembly 320 includes a clamping jaw disk 330 and a rotating assembly 340. The rotating assembly 340 is fixedly mounted on the base plate 100. The clamping jaw disk 330 is disposed at the output end of the rotating assembly 340. The cooling assembly 500 is disposed at the output end of the clamping jaw disk 330. The clamping groove of the clamping jaw disk 330 is coaxially and collinearly arranged with the clamping center of the first clamping assembly 310. The output end of the cooling assembly 500 faces the clamping groove of the clamping jaw disk 330. Specifically, using the clamping jaw disk 330 is beneficial for fixing the worm gear 400 to be processed from multiple angles, significantly reducing its eccentricity during rotation. In this embodiment, the rotating assembly 340 is a servo motor.

[0041] like Figures 1-4As shown, in another embodiment of this utility model, the clamping claw disk 330 includes a rotating disk 331, movable claws 332, and adjusting screws 333. The rotating disk 331 is fixedly disposed at the output end of the rotating assembly 340. The number of movable claws 332 and adjusting screws 333 are equal. There are multiple sets of movable claws 332, which are slidably connected to the rotating disk 331. The multiple sets of movable claws 332 are evenly distributed circumferentially at intervals along the midpoint of the rotating disk 331. The adjusting screws 333 are rotatably connected to the rotating disk 331. The movable claws 332 are provided with screw holes 334. The external thread of the adjusting screw 333 is adapted to the thread of the screw hole 334. The cooling assembly 500 passes through the adjusting screw 333. Specifically, the cooling component 500, which is installed inside the adjusting screw 333, facilitates space optimization of the clamping jaw disk 330. The adjustment frequency of the moving jaw 332 is low, and even the decrease in structural strength caused by perforating the adjusting screw 333 to accommodate the cooling component 500 will not affect the clamping stability of the moving jaw 332. During rotation, the adjusting screw 333 remains stationary relative to the rotating disk 331. The moving jaw 332, threadedly connected to the adjusting screw 333, moves linearly under the influence of the threaded drive, thereby achieving the adjustment effect of the moving jaw 332.

[0042] like Figures 1-4 As shown, in another embodiment of this utility model, the cooling assembly 500 includes an air pipe 510 and a fixed bushing 520. The adjusting screw 333 is concentrically provided with a mounting shaft hole along its length direction. The air pipe 510 is disposed in the mounting shaft hole, and a gap is provided between the outer wall of the air pipe 510 and the inner wall of the mounting shaft hole. The fixed bushing 520 is fixedly disposed at the end of the screw hole 334 of the movable gripper 332 away from the adjusting screw 333. The inner ring of the fixed bushing 520 is slidably connected to the outer wall of the air pipe 510. In this embodiment, the air pipe 510 is a flexible hose. The input end of the air pipe 510 is connected to the output end pipe of the external liquid nitrogen vaporization supply device. With a gap arrangement, the air pipe 510 can rotate relative to the adjusting screw 333 when the adjusting screw 333 rotates, satisfying the rotation requirements of the adjusting screw 333 without affecting the air delivery. In other embodiments, the trachea 510 may also be a rigid tube structure to prevent the trachea 510 from bending and affecting the air delivery efficiency.

[0043] like Figures 1-4As shown, in another embodiment of this utility model, the rotating disk 331 is generally arranged in a circular flat plate structure, and the output ends of all the air pipes 510 point to the center of the rotating disk 331. The cooling gas output from all the air pipes 510 converges and is blocked by the middle part of the rotating disk 331 and moves towards the worm gear 400 to be processed. Specifically, there are four sets of movable grippers 332, which are evenly distributed circumferentially on the rotating disk 331. Anti-slip ribs are provided at the ends of the movable grippers 332 away from the rotating disk 331. The rotating disk 331 is arranged in a flat plate-like structure near the center of the four sets of movable grippers 332. The cooling nitrogen output from the four sets of air pipes 510 to the four sets of movable grippers 332 is blocked by the center of the rotating disk 331 and forced to move towards the worm gear 400 to be processed. In this embodiment, to prevent the movable grippers 332 from shrinking due to significant cooling, an external liquid nitrogen vaporization supply mechanism periodically outputs nitrogen. The output end of the air pipe 510 is arranged in a conical structure. When the nitrogen approaches the output end of the air pipe 510, it is compressed by the conical inner wall, which accelerates its movement speed, achieving high-speed injection, and then diffuses to the entire worm gear 400 to be processed, further improving the heat exchange efficiency between the worm gear 400 and the nitrogen.

[0044] like Figures 1-4 As shown, in another embodiment of this utility model, the fixed bushing 520 is fixedly installed in the screw hole 334 of the movable gripper 332, and the outer side wall edge of the fixed bushing 520 is sealed to the inner wall of the screw hole 334 to form a sealing structure to prevent cooling gas from flowing back into the screw hole 334, thereby further improving the cooling effect.

[0045] like Figures 1-4 As shown, in another embodiment of this utility model, a gas guide groove 335 is provided in the movable gripper 332. The gas guide groove 335 extends along the length direction of the worm gear 400 to be processed. The gas guide groove 335 is located on the side of the fixed bushing 520 facing away from the adjusting screw 333. The addition of the gas guide groove 335 structure is beneficial to improving the nitrogen output efficiency and further increasing the contact frequency between nitrogen and the worm gear 400 to be processed.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 motor worm press apparatus characterized by, include: Base plate; A stamping mechanism, wherein the stamping mechanism is disposed on the base plate; A clamping mechanism is disposed on the base plate and located at the stamping output end of the stamping mechanism; The clamping mechanism is used to clamp both ends of the worm gear to be processed and drive the worm gear to rotate during the stamping process; one set of clamping ends of the clamping mechanism is provided with a cooling component, which is used to output low-temperature gas along the axial direction of the worm gear.

2. The motor worm gear stamping equipment according to claim 1, characterized in that: The clamping mechanism includes a first clamping component and a second clamping component, which are distributed on the base plate. A machining position for accommodating the worm gear to be processed is formed between the first clamping component and the second clamping component. Both the first clamping component and the second clamping component are located at the stamping output end of the stamping mechanism.

3. The motor worm gear stamping equipment according to claim 2, characterized in that: The stamping mechanism includes a mounting frame and a stamping spindle. The mounting frame is disposed on the base plate, and the stamping spindle is disposed on the mounting frame. The output end of the stamping spindle can extend towards the base plate. The first clamping assembly and the second clamping assembly are both located inside the mounting frame and below the stamping spindle.

4. The motor worm gear stamping equipment according to claim 2, characterized in that: The first clamping assembly includes a first mounting base and a tapered tip. The first mounting base is disposed on the base plate, and the tapered tip is fixedly disposed on the first mounting base and used to abut against the end of the worm gear to be processed. The tapered tip is coaxially and collinearly disposed with the clamping center of the second clamping assembly.

5. The motor worm gear stamping equipment according to claim 2, characterized in that: The second clamping assembly includes a clamping claw disk and a rotating assembly. The rotating assembly is fixedly mounted on the base plate. The clamping claw disk is located at the output end of the rotating assembly. The cooling assembly is located at the output end of the clamping claw disk. The clamping groove of the clamping claw disk is coaxially and collinearly arranged with the clamping center of the first clamping assembly. The output end of the cooling assembly faces the clamping groove of the clamping claw disk.

6. The motor worm gear stamping equipment according to claim 5, characterized in that: The clamping jaw disk includes a rotating disk, movable jaws, and an adjusting screw. The rotating disk is fixedly disposed at the output end of the rotating assembly. The number of movable jaws and the number of adjusting screws are equal. There are multiple sets of movable jaws, which are slidably connected to the rotating disk. The multiple sets of movable jaws are evenly distributed circumferentially at intervals along the midpoint of the rotating disk. The adjusting screw is rotatably connected to the rotating disk. The movable jaws are provided with threaded holes. The external thread of the adjusting screw is adapted to the thread of the threaded hole. The cooling assembly passes through the adjusting screw.

7. The motor worm gear stamping equipment according to claim 6, characterized in that: The cooling assembly includes an air pipe and a fixed bushing. The adjusting screw is concentrically provided with a mounting shaft hole along its length. The air pipe is disposed in the mounting shaft hole. A gap is provided between the outer wall of the air pipe and the inner wall of the mounting shaft hole. The fixed bushing is fixedly disposed at the end of the threaded hole of the movable jaw away from the adjusting screw. The inner ring of the fixed bushing is slidably connected to the outer wall of the air pipe.

8. The motor worm gear stamping equipment according to claim 7, characterized in that: The rotating disk is arranged in a circular flat plate structure. The output ends of all the air pipes point to the center of the rotating disk. The cooling gas output from all the air pipes converges and is blocked by the middle part of the rotating disk and moves towards the worm gear to be processed.

9. The motor worm gear stamping equipment according to claim 7, characterized in that: The fixed bushing is fixedly installed in the threaded hole of the movable gripper, and the outer side wall edge of the fixed bushing is sealed to the inner wall of the threaded hole to form a sealing structure to prevent cooling gas from flowing back into the threaded hole.

10. The motor worm gear stamping equipment according to claim 9, characterized in that: The movable gripper is provided with an air guide groove, which extends along the length of the worm gear to be tested and is located on the side of the fixed bushing opposite to the adjusting screw.

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