Stator and rotor single slot stamping die

Abstract

The utility model discloses a kind of stator-rotor single-slot punch press die, belong to punch press die technical field, including punch press table, lower die component, upper die component, rotating seat, stabilizing mechanism and collection mechanism, stabilizing mechanism includes mounting bracket, telescopic link, connecting disc, telescopic slide bar, spring and lower pressure head with rolling ball, connecting disc is driven by telescopic link, make spring compression telescopic slide bar, utilize rolling ball to exert flexible pressure on punch part, and when rotating, sliding friction is converted into rolling friction, collection mechanism includes collection box, positioning sliding block, fixed block and lifting sliding block, after the positioning sliding block on collection box inserts the positioning sliding slot of fixed block, by the self-locking fixing of collection box of lifting sliding block falling, the utility model effectively improves the stability and precision of stamping process, protects workpiece surface, and realizes the rapid collection and cleaning of waste.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a single-slot stamping die for stator and rotor. Background Technology

[0002] The stator and rotor cores are important components of motors. The machining accuracy and surface quality of the core slots directly affect the uniformity of the magnetic field, operating efficiency, and noise and vibration indicators of the motor. In the mass production of stator and rotor cores, single-slot stamping is a common processing technology. The core is stamped slot by slot using a stamping die, while the core is rotated step by step to complete the machining of all slots.

[0003] In existing single-groove stamping processes, in order to ensure stamping accuracy, it is usually necessary to apply a certain downward pressure to the stamped parts to ensure that the stamped parts will not be displaced or vibrated when subjected to stamping pressure and rotation. However, the existing clamping methods are often relatively simple and cannot provide sufficient stability while adapting to the slight thickness unevenness or form and position tolerances of the stamped parts. Rigid clamping methods will cause indentations or deformation on the surface of the workpiece, affecting product quality.

[0004] Since the stamped parts need to rotate while being clamped, relative sliding will occur between the clamping device and the surface of the stamped parts. This sliding friction not only generates significant resistance, affecting the accuracy of rotational positioning, but also causes scratches or roughening on the surface of the stamped parts. This will have an adverse effect on subsequent insulation treatment and assembly, which is an urgent problem to be solved in the processing of motor cores where high surface finish is required.

[0005] Furthermore, the stamping process generates a large amount of metal scrap. Existing scrap collection devices are usually simple receiving boxes or hoppers placed under the mold. The installation and removal of such collection devices are often inconvenient, especially when frequent scrap cleaning is required. The operation process is cumbersome and time-consuming. Inaccurate positioning can also cause scrap to scatter, polluting the equipment and workshop environment, affecting the overall production efficiency and on-site management level.

[0006] Therefore, this utility model proposes a single-slot stamping die for stator and rotor to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems existing in the stator and rotor single-slot stamping die, such as poor stability of stamped parts during rotational processing, friction damage, low positioning accuracy, and cumbersome and inefficient stamping waste collection process, this utility model aims to provide a stator and rotor single-slot stamping die with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a single-slot stamping die for stator and rotor, including: a stamping table, a lower die component, an upper die component, and a rotating seat; as well as a stabilizing mechanism and a collecting mechanism.

[0009] The stabilizing mechanism includes a mounting frame, a telescopic rod, a connecting plate, a telescopic slide rod, a lower pressure head, a rolling ball, and a spring. The telescopic rod is mounted on the mounting frame and its end is connected to the connecting plate. The inner wall of the connecting plate is slidably connected to the telescopic slide rod. The spring is sleeved on the telescopic slide rod, and the rolling ball is mounted on the bottom of the lower pressure head. This combination applies a flexible downward pressure to the stamped part and reduces rotational friction.

[0010] Furthermore, the collection mechanism includes a collection box, a fixed block, and a lifting slider. The collection box is equipped with a positioning slider. After the positioning slider is inserted into the positioning groove in the fixed block, the lifting slider falls down to abut and restrict the positioning slider, thereby realizing the quick locking and unlocking of the collection box.

[0011] Preferably, the mounting bracket is fixed above the stamping table.

[0012] Preferably, there are multiple telescopic slide rods, which are evenly distributed on the inner wall of the connecting plate.

[0013] Preferably, the rolling ball is rotatably mounted on the bottom of the pressing head.

[0014] Preferably, the bottom of the collection box is rotatably connected to casters.

[0015] Preferably, the positioning slider has a guide slope, and the lifting slider also has a guide slope; during the process of the positioning slider being inserted into the positioning groove, the guide slope of the positioning slider contacts the guide slope of the lifting slider to push the lifting slider to slide upward.

[0016] Preferably, the collecting mechanism further includes a connecting rod, which is fixedly connected to the top of the lifting slider for lifting the lifting slider upward.

[0017] Preferably, the rotating seat can rotate intermittently to drive the stamping part to rotate intermittently synchronously.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model, by setting up a stabilizing mechanism, uses the cooperation of a telescopic rod, a spring and a rolling ball on the lower pressure head to apply a continuous, flexible, adaptive downward pressure to the stamped part, and transforms sliding friction into rolling friction when the stamped part rotates. This solves the problems of inaccurate positioning and poor stability of the stamped part during rotary stamping in the prior art, as well as the scratches and deformation of the workpiece surface caused by friction. It improves stamping accuracy and stability, while effectively protecting the workpiece surface and optimizing the forming effect.

[0020] 2. This utility model, by setting up a collection mechanism, utilizes the inclined plane guidance and gravity self-locking structure between the positioning slider on the collection box and the lifting slider in the fixed block to solve the problems of cumbersome installation and disassembly process, unstable positioning and low efficiency of waste collection boxes in the prior art. It realizes the quick operation of pushing the collection box in for self-locking and lifting to unlock, thereby improving the convenience of waste collection and production efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of a single-slot stamping die for a stator and rotor according to the present invention.

[0022] Figure 2 This is a side view of a single-slot stamping die for stator and rotor according to the present invention.

[0023] Figure 3 This is a schematic diagram of the rotating seat of a single-groove stamping die for stator and rotor according to the present invention.

[0024] Figure 4 This is an exploded view of the stabilizing mechanism of a single-slot stamping die for stator and rotor proposed in this utility model;

[0025] Figure 5 This is a schematic diagram of a collection mechanism for a single-slot stamping die for a stator and rotor, as proposed in this utility model.

[0026] Figure 6 This is a cross-sectional view of the fixing block of a single-slot stamping die for stator and rotor proposed in this utility model.

[0027] Legend:

[0028] 1. Stamping table; 2. Stabilizing mechanism; 201. Mounting bracket; 202. Telescopic rod; 203. Connecting plate; 204. Telescopic slide rod; 205. Lower pressure head; 206. Rolling ball; 207. Spring; 3. Collecting mechanism; 301. Collecting box; 302. Casters; 303. Positioning slider; 304. Fixing block; 305. Positioning groove; 306. Lifting slider; 307. Connecting rod; 4. Lower die assembly; 5. Upper die assembly; 6. Rotating seat; 7. Stamped part. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] Example:

[0031] Please refer to Figures 1 to 6 This utility model provides a single-slot stamping die for stator and rotor, including a stamping table 1. A lower die component 4 is provided on the top of the stamping table 1. A rotating seat 6 is rotatably connected to the top of the lower die component 4, and the rotating seat 6 is used to support the stamped part 7. An upper die component 5 is disposed on the stamping table 1 and located above the lower die component 4, used for stamping the stamped part 7. To improve stability during the stamping process, a stabilizing mechanism 2 is also provided above the stamping table 1 for stabilizing and pressing the stamped part 7. To facilitate the collection of stamping waste, a waste collection mechanism 3 is provided at the bottom of the stamping table 1. (Refer to...) Figure 1 , Figure 2 and Figure 4 The stabilizing mechanism 2 includes a mounting frame 201, which is fixed above the stamping table 1. A telescopic rod 202 is mounted on the mounting frame 201. A connecting plate 203 is fixedly connected to the end of the telescopic rod 202. Multiple telescopic slide rods 204 are slidably connected to the inner wall of the connecting plate 203. A spring 207 is sleeved on each telescopic slide rod 204. A lower pressure head 205 is fixedly connected to the bottom end of the telescopic slide rod 204. A rolling ball 206 is rotatably mounted on the bottom of the lower pressure head 205.

[0032] Reference Figure 1 , Figure 5 and Figure 6 The collection mechanism 3 includes a movable collection box 301. Universal wheels 302 are rotatably connected to the four corners of the bottom of the collection box 301. Positioning sliders 303 are fixedly connected to the left and right sides of the collection box 301. Two fixing blocks 304 are fixedly connected to the bottom of the stamping table 1. Each fixing block 304 has a positioning groove 305 on its inner side to guide the positioning slider 303. A lifting slider 306 is also slidably connected to the inner wall of the fixing block 304. A connecting rod 307 is fixedly connected to the top of the lifting slider 306.

[0033] Please refer to Figures 1 to 6Multiple telescopic slide rods 204 are evenly distributed on the inner wall of the connecting plate 203 and installed by a sliding connection. Each telescopic slide rod 204 has a spring 207 inside. When the telescopic rod 202 is activated and extends downward, the telescopic rod 202 drives the connecting plate 203 to move downward as a whole, thereby driving the multiple telescopic slide rods 204, the pressing head 205, and the rolling ball 206 to move downward synchronously until the surface of the rolling ball 206 contacts the top surface of the stamped part 7. At this time, the telescopic rod 202 continues to move downward a short distance, causing the multiple telescopic slide rods 204 to be compressed, thereby compressing the internal springs 207. The compressed springs 207 generate continuous elastic force, which, through the pressing head 205 and the rolling ball 206, acts on the surface of the stamped part 7 to form a flexible and adaptive downward pressure. When the rotating seat 6 drives the stamped part 7 to rotate intermittently, the surface of the stamped part 7 and the rolling ball 206 undergo rolling friction. This flexible pressing and rolling friction combination structure ensures the stamping... The pressure component 7 exhibits high stability and positioning accuracy under impact and rotation, while preventing scratches on the workpiece surface. Furthermore, in the collecting mechanism 3, both the positioning slider 303 and the lifting slider 306 are equipped with corresponding guide slopes. When the collecting box 301 needs to be installed, the positioning slider 303 is aligned with the positioning groove 305 of the fixing block 304 and pushed inward. During this pushing process, the guide slope of the positioning slider 303 contacts and compresses the guide slope of the lifting slider 306, forcing the lifting slider 306 to slide upward along the inner wall of the fixing block 304. When the collecting box 301 is fully pushed into place, the positioning slider 303 passes over the lifting slider 306, and the lifting slider 306 automatically falls back to its original position under its own gravity. At this time, the rear side of the lifting slider 306 abuts against the front side of the positioning slider 303, thus forming a limit lock on the collecting box 301. This self-locking structure with inclined surfaces enables the rapid installation and reliable fixing of the collecting box 301.

[0034] In a preferred embodiment, in order to provide a stable mounting base for the stabilizing mechanism 2, the mounting bracket 201 is fixed above the stamping table 1, and the telescopic rod 202 is mounted on the mounting bracket 201.

[0035] As another preferred embodiment, in order to make the pressure applied to the surface of the stamping part 7 more uniform, a plurality of telescopic slide rods 204 are evenly distributed on the inner wall of the connecting plate 203.

[0036] As another preferred embodiment, in order to minimize the frictional resistance generated by the stabilizing mechanism 2 when the stamping part 7 rotates, the rolling ball 206 is rotatably mounted on the bottom of the lower pressure head 205, thereby effectively converting sliding friction into rolling friction.

[0037] As another preferred embodiment, in order to improve the ease of movement of the collection box 301, all four corners at the bottom of the collection box 301 are rotatably connected to casters 302 via pivots.

[0038] As a more specific implementation, in order to realize the self-locking function of the collection box 301, the outer side wall of the positioning slider 303 is provided with a guide slope, and the side of the lifting slider 306 facing the positioning slider 303 is also provided with a matching guide slope. When the positioning slider 303 is inserted into the positioning groove 305, the two guide slopes contact and squeeze each other, thereby pushing the lifting slider 306 to slide upward.

[0039] In a preferred embodiment, to facilitate the release of the locking state of the collection box 301, a connecting rod 307 is fixedly connected to the top of the lifting slider 306. The operator can lift the connecting rod 307 upward to drive the lifting slider 306 to slide upward, thereby releasing the restriction on the positioning slider 303.

[0040] In a preferred embodiment, in order to realize the single-groove stamping process, the drive mechanism of the rotating seat 6 is configured to rotate intermittently, thereby driving the stamped part 7 to achieve precise angular rotation synchronously.

[0041] Working principle: When performing stamping operation, the inner hole of the stamping part 7 is first sleeved on the outer wall of the rotating seat 6 at the top of the lower die component 4. The bottom surface of the stamping part 7 is in contact with the top surface of the lower die component 4. Before rotating and stamping the stamping part 7, in order to ensure the accurate and stable positioning of the stamping part 7 during the processing, the stabilizing mechanism 2 needs to be activated. At this time, the telescopic rod 202 on the mounting frame 201 is activated and extends downward. The telescopic rod 202 drives the connecting plate 203 to move downward. As the connecting plate 203 moves downward, the multiple telescopic sliding rods 204 slidably connected to the inner wall of the connecting plate 203 will drive the bottom pressing head 205 and the rolling ball 206 to move downward synchronously.

[0042] When the surfaces of the multiple rolling balls 206 contact the top surface of the stamping part 7, the telescopic rod 202 will continue to extend downward a preset distance, which causes the telescopic slide rod 204 to be compressed within the sliding stroke, thereby compressing the spring 207 sleeved on the telescopic slide rod 204. The compressed multiple springs 207 will generate a continuous and flexible elastic force. This elastic force is applied to the surface of the stamping part 7 through the pressing head 205 and the rolling balls 206. Through the downward pressure of the telescopic rod 202 and the elastic force of the multiple springs 207, a continuous flexible adaptive downward pressure is applied to the stamping part 7, so that the stamping part 7 can be firmly and stably pressed onto the rotating seat 6.

[0043] At this time, the stamping table 1 drives the upper die component 5 to perform continuous stamping action on the stamping part 7. At the same time, the rotating seat 6 rotates intermittently, thereby driving the stamping part 7 to rotate together. While the stamping part 7 is rotating, the surface of the stamping part 7 will rub against multiple rolling balls 206. Since the rolling balls 206 are rotatably mounted, the rotation of the stamping part 7 will drive the rolling balls 206 to rotate themselves, thereby greatly reducing the friction between the lower pressure head 205 and the stamping part 7, improving the smoothness of rotation and stamping accuracy, optimizing the forming effect, and effectively preventing damage and deformation of the surface of the stamping part 7.

[0044] When it is necessary to collect the waste generated during the stamping process, the collection mechanism 3 comes into play. The operator pushes the collection box 301 towards the bottom of the stamping table 1. The casters 302 at the bottom of the collection box 301 rotate to make the collection box 301 move smoothly. During the pushing process, the positioning sliders 303 on both sides of the collection box 301 align with the positioning grooves 305 on the inner side of the two fixed blocks 304 and insert themselves. The guide slope of the positioning slider 303 will contact and press against the guide slope of the lifting slider 306 that is slidably connected to the inner wall of the fixed block 304. The lifting slider 306 overcomes its own gravity and slides upward along the inner wall of the fixed block 304. When the collection box 301 is fully pushed into place, the positioning slider 303 and the lifting slider 306 are misaligned. Under the action of gravity, the lifting slider 306 will slide down along the inner wall of the fixed block 304 to the initial position. At this time, the rear side of the lifting slider 306 will closely fit the front side of the positioning slider 303, thereby restricting the displacement of the positioning slider 303, and thus firmly locking the collection box 301 at the bottom of the stamping table 1 to receive the waste generated by the stamping above.

[0045] When it is necessary to pull out the collection box 301 to clean up the internal waste, simply pull up the connecting rod 307 fixedly connected to the top of the lifting slider 306. The outer wall of the connecting rod 307 slides upward along the inner wall of the stamping table 1, thereby driving the lifting slider 306 to slide upward synchronously. At this time, the positioning slider 303 loses its limit, and the collection box 301 can be easily pulled out to clean up the collected waste.

Claims

1. A single-slot stamping die for stator and rotor, comprising a stamping table (1), a lower die component (4), an upper die component (5) and a rotating seat (6), wherein the rotating seat (6) is rotatably disposed on the lower die component (4) for bearing the stamped part (7); Its features are, The stator and rotor single-slot stamping die also includes a stabilizing mechanism (2) and a collecting mechanism (3). The stabilizing mechanism (2) includes a telescopic rod (202), a connecting plate (203), a telescopic slide rod (204), a lower pressure head (205), and a rolling ball (206). The telescopic rod (202) drives the connecting plate (203) to move, and the connecting plate (203) drives the telescopic slide rod (204). The telescopic slide rod (204) contacts the surface of the stamped part (7) and applies pressure through the rolling ball (206) at the bottom of the lower pressure head (205). The collection mechanism (3) includes a collection box (301), a fixing block (304), and a lifting slider (306). The collection box (301) is provided with a positioning slider (303). The positioning slider (303) can be inserted into the positioning groove (305) of the fixing block (304), and the lifting slider (306) locks the positioning slider (303).

2. The stator and rotor single-slot stamping die according to claim 1, characterized in that, The stabilizing mechanism (2) further includes a mounting bracket (201), which is fixed above the stamping table (1). The telescopic rod (202) is mounted on the mounting bracket (201), and the connecting plate (203) is connected to the end of the telescopic rod (202). The inner wall of the connecting plate (203) is slidably connected to the telescopic slide rod (204).

3. A single-slot stamping die for stator and rotor according to claim 2, characterized in that, The stabilizing mechanism (2) further includes a spring (207), which is sleeved on the telescopic slide (204) and is used to apply elastic force to the lower pressure head (205) when the telescopic slide (204) is compressed.

4. A single-slot stamping die for stator and rotor according to claim 3, characterized in that, The rolling ball (206) is rotatably mounted on the bottom of the lower pressure head (205) to convert sliding friction into rolling friction when the stamping part (7) rotates.

5. A single-slot stamping die for stator and rotor according to claim 1, characterized in that, The bottom of the collection box (301) of the collection mechanism (3) is rotatably connected to casters (302).

6. A single-slot stamping die for stator and rotor according to claim 1, characterized in that, The positioning slider (303) has a guide slope, and the lifting slider (306) also has a guide slope. During the process of the positioning slider (303) being inserted into the positioning groove (305), the guide slope of the positioning slider (303) contacts and presses against the guide slope of the lifting slider (306), causing the lifting slider (306) to slide upward along the inner wall of the fixed block (304).

7. A single-slot stamping die for stator and rotor according to claim 6, characterized in that, The collecting mechanism (3) also includes a connecting rod (307), the bottom end of which is fixedly connected to the top of the lifting slider (306) for lifting upward to drive the lifting slider (306) to slide upward, thereby releasing the limit on the positioning slider (303).

8. A single-slot stamping die for stator and rotor according to claim 1, characterized in that, The rotating seat (6) can rotate intermittently to drive the stamping part (7) to rotate intermittently in sync.

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