Stamping die for large and small slots of stator

Abstract

The utility model relates to the technical field of motor stator stamping, in particular to a stator large and small groove stamping die which comprises a main body, an upper die is arranged in the main body, hydraulic rods are symmetrically arranged at the top end of the upper die, a large stamping groove is formed in the upper die, a small stamping groove is formed in one side of the large stamping groove, and a lower die is arranged at the bottom end of the main body. A large punching rod is arranged in the lower die, a small punching rod is arranged on one side of the large punching rod, a cutting machine is arranged on one side of the small punching rod, and a thin sheet is arranged at the bottom of the upper die. The problems of single-groove layout, low efficiency, high cost and long period of traditional large and small groove machining dies are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of motor stator stamping, in particular to a stator large and small slot stamping die. Background Art

[0002] Stator double slot punching is used in asynchronous three-phase motors, which can effectively reduce motor stray losses, motor temperature rise and noise. H335-450 low-voltage, high-power and ultra-high-efficiency motors are essential for double slot applications. In the early stage, various schemes with different slot shapes and slot numbers will be trial-produced to determine the best slot number arrangement.

[0003] Traditional large and small groove processing molds have single groove layout, low efficiency, high cost and long cycle.

[0004] Therefore, it is particularly important to design a stator slot stamping die to change the above technical defects and improve overall practicality. Utility Model Content

[0005] The utility model aims to provide a stator slot stamping die to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The stator slot punching die comprises a main body, an upper die is arranged inside the main body, a hydraulic rod is symmetrically arranged on the top of the upper die, a large punching slot is arranged inside the upper die, a small punching slot is arranged on one side of the large punching slot, a lower die is arranged at the bottom end of the main body, a large punching rod is arranged inside the lower die, a small punching rod is arranged on one side of the large punching rod, a cutting machine is arranged on one side of the small punching rod, and a thin sheet is arranged at the bottom of the upper die;

[0008] A support plate is symmetrically arranged inside the main body, a large punch block is arranged on the top of the large punch rod, a small punch block is arranged on one side of the large punch block, impact plates are arranged at the bottom ends of the large and small punch blocks, positioning rods are symmetrically arranged at both ends of the impact plate, compression springs are symmetrically arranged at the bottom end of the impact plate, a telescopic rod is arranged inside the compression spring, a support frame is arranged inside the main body, a support block is arranged near the center of the support frame, an electric telescopic rod is arranged at the bottom end of the support plate, upper lifting blocks are symmetrically arranged at both ends of the impact plate, the upper lifting blocks are connected to a turntable, a lower pressure block is arranged on the turntable, and the turntable is connected to a rotating motor.

[0009] As a preferred solution of the present invention, two groups of avoidance grooves are provided inside the support frame, and the sizes of the two avoidance grooves are respectively adapted to the large punch rod and the small punch rod.

[0010] As a preferred solution for the use of the new type, the large punch block, the small punch block are adapted to the large punch groove, the small punch groove, the impact plate and the positioning rod are slidably connected, and a limit plate is provided at the top of the positioning rod to prevent the impact plate from slipping.

[0011] As a preferred solution for the present use of the new type, the telescopic rod includes a large sleeve and a small sleeve, the small sleeve is arranged inside the large sleeve, and one end of the small sleeve is provided with a block for preventing slipping, and both ends of the compression spring are provided with mounting plates, and the mounting plates are fixedly connected to the impact plate and the support frame respectively.

[0012] As a preferred solution for the present invention, pressure sensors are provided on the surfaces of the upper lifting block and the lower pressing block, a reset plate is provided at the output end of the electric telescopic rod, a soft pad is provided on one side of the reset plate, and a protective cover is provided on the outside of the electric telescopic rod.

[0013] As a preferred solution for the present invention, the impact plate is made of high-hardness alloy steel, a control panel is provided on one side of the main body, and the control panel is electrically connected to the hydraulic rod, lower mold, electric telescopic rod, and rotating motor, so that users can easily perform switch control and speed adjustment.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] In the utility model, a stator large and small slot stamping die is provided, and a structure of a hydraulic rod, a slot, an impact plate, a support block, a compression spring, a telescopic rod, an upper lifting block, a turntable and a lower pressing block is utilized. The upper die is driven down by the provided hydraulic rod, so that the large slot and the small slot are aligned with the thin slice, and the punch rod in the lower die punches upward to form a punching force with the large punch block and the small punch block, and then the thin slice is squeezed through the impact plate. If only the small slot needs to work, a rotating motor controls the upper lifting block and the lower pressing block to adjust the states of the large punch block and the small punch block. When the small punch block works, the compression spring assists its displacement, while the large punch rod punches in vain. After the electric telescopic rod resets the impact plate, the next round of stamping is performed. After completion, the upper die is lifted, the stator is taken out, and a new thin slice is placed in to perform the next round of work, thereby solving the problems of single slot arrangement, low efficiency, high cost and long cycle of traditional large and small slot processing dies. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a planar structural diagram of the utility model as a whole;

[0017] Figure 2 It is a schematic diagram of the impact plate assembly of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the lower pressing block assembly and the telescopic rod assembly of the utility model.

[0019] In the figure: 1. main body; 101. upper mold; 102. hydraulic rod; 103. large punching groove; 104. small punching groove; 105. thin sheet; 2. lower mold; 201. large punching rod; 202. small punching rod; 203. cutting machine; 3. support plate; 4. large punching block; 401. small punching block; 402. impact plate; 403. positioning rod; 404. support frame; 405. support block; 406. electric telescopic rod; 5. compression spring; 501. telescopic rod; 502. upper lifting block; 503. turntable; 504. lower pressing block; 505. rotating motor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively with reference to the relevant drawings below. Several embodiments of the utility model are given. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For examples, see Figure 1-3 , the utility model provides a technical solution:

[0025] The stator slot punching die comprises a main body 1, an upper die 101 is arranged inside the main body 1, a hydraulic rod 102 is symmetrically arranged on the top of the upper die 101, a large punching slot 103 is arranged inside the upper die 101, a small punching slot 104 is arranged on one side of the large punching slot 103, a lower die 2 is arranged at the bottom of the main body 1, a large punch rod 201 is arranged inside the lower die 2, a small punch rod 202 is arranged on one side of the large punch rod 201, a cutting machine 203 is arranged on one side of the small punch rod 202, a thin sheet 105 is arranged at the bottom of the upper die 101, a supporting plate 3 is symmetrically arranged inside the main body 1, a large punch block 4 is arranged on the top of the large punch rod 201, a small punch block 401 is arranged on one side of the large punch block 4, an impact plate 402 is arranged at the bottom of the large punch block 4 and the small punch block 401, and the impact plate 403 is arranged at the bottom of the large punch block 4 and the small punch block 401. 2 is symmetrically provided with positioning rods 403 at both ends, and compression springs 5 ​​are symmetrically provided at the bottom end of the impact plate 402. A telescopic rod 501 is provided inside the compression spring 5. A support frame 404 is provided inside the main body 1. A support block 405 is provided near the center of the support frame 404. An electric telescopic rod 406 is provided at the bottom end of the support plate 3. Upper lifting blocks 502 are symmetrically provided at both ends of the impact plate 402. The upper lifting blocks 502 are connected to a turntable 503. A lower pressing block 504 is provided on the turntable 503. The turntable 503 is connected to a rotating motor 505. The hydraulic rod 102 starts to work, pushing the upper mold 101 to move downward, so that the large punching groove 103 and the small punching groove 104 are aligned with the thin sheet 105 placed on the support plate 3. At the same time, the large punch rod 201 and the small punch rod 202 in the lower mold 2 The work performs the upward punching action, contacts with the large punch block 4 and the small punch block 401, and forms a punching force. At this time, the large punch block 4 and the small punch block 401 transmit the punching force to the impact plate 402, and the impact plate 402 impacts upward along the positioning rod 403 to extrude the thin sheet 105 to fit the punching groove. This is the simultaneous operation of the two grooves. If only the small punching groove 104 needs to work, the rotating motor 505 needs to be used. The rotating motor 505 rotates to make the upper lifting block 502 contact the bottom surface of the impact plate 402 at the bottom end of the large punch block 4. At this time, the large punch block 4 is lifted, and at the same time, the state of the small punch block 401 is pressed by the lower pressing block 504, and the compression spring 5 and the telescopic rod 501 are both contracted. When the large punch rod 201 and the small punch rod 202 punch upward, the rotating motor 505 rotates 90 degrees to release the small punch rod 201. Punch block 401, small punch rod 202 contacts and collides with impact plate 402, and the energy accumulated by compression spring 5 is stretched to assist small punch block 401 to move upward, while large punch rod 201 cannot contact impact plate 402, and performs an empty upward punching action, and then starts electric telescopic rod 406 to reset impact plate 402 for the next impact, and when large punch block 4 needs to be switched, rotary motor 505 rotates 180 degrees, and impact plate 402 on large punch block 4 changes from upper lifting block 502 to lower pressing block 504, and small punch block 401 changes from lower pressing block 504 to upper lifting block 502, and after completing one round of stamping, hydraulic rod 102 lifts upper die 101, takes out the stamped stator, and then puts in new sheet 105 again, and starts the next round of stamping work;

[0026] The support frame 404 is provided with two sets of avoidance grooves, the sizes of which are respectively matched with the large punch rod 201 and the small punch rod 202, the large punch block 4 and the small punch block 401 are matched with the large punch groove 103 and the small punch groove 104, the impact plate 402 is slidably connected with the positioning rod 403, and a limit plate is provided at the top of the positioning rod 403 to prevent the impact plate 402 from slipping off, the telescopic rod 501 includes a large sleeve and a small sleeve, the small sleeve is arranged inside the large sleeve, and a block for preventing slipping is provided at one end of the small sleeve, and mounting plates are provided at both ends of the compression spring 5, and the mounting plates are respectively connected with the impact plate 4 02. The support frames 404 are fixedly connected to each other to facilitate the accumulation of energy to assist the impact. Pressure sensors are provided on the surfaces of the upper lifting block 502 and the lower pressing block 504. A reset plate is provided at the output end of the electric telescopic rod 406. A soft cushion is provided on one side of the reset plate. A protective cover is provided on the outside of the electric telescopic rod 406 to facilitate the protection of the electric telescopic rod 406. The impact plate 402 is made of high-hardness alloy steel. A control panel is provided on one side of the main body 1, and the control panel is electrically connected to the hydraulic rod 102, the lower mold 2, the electric telescopic rod 406, and the rotating motor 505 to facilitate the user to perform switch control and speed adjustment.

[0027] The working process of the utility model is as follows: when using the stator slot punching die, before starting the punching die, the operator first starts the equipment by pressing the switch button on the control panel and sets the required punching speed and parameters. Then, the hydraulic rod 102 starts to work, pushing the upper die 101 to move downward, so that the large punching slot 103 and the small punching slot 104 are aligned with the sheet 105 placed on the support plate 3. At the same time, the large punching rod 201 and the small punching rod 202 in the lower die 2 work to perform the upward punching action, and the large punching block 4 and The small punch block 401 contacts and forms a punching force. At this time, the large punch block 4 and the small punch block 401 transmit the punching force to the impact plate 402. The impact plate 402 impacts upward along the positioning rod 403 to extrude the sheet 105 to fit the punching groove. This is the simultaneous operation of the two grooves. If only the small punching groove 104 is needed to work, the rotating motor 505 needs to be used. The rotating motor 505 rotates to make the upper lifting block 502 contact the bottom surface of the impact plate 402 at the bottom end of the large punch block 4. At this time, the large punch block 4 is lifted, and the state of the small punch block 401 is The lower pressing block 504 is pressed, and the compression spring 5 and the telescopic rod 501 are both contracted. When the large punch rod 201 and the small punch rod 202 are punching upward, the rotating motor 505 rotates 90 degrees to release the small punch block 401, and the small punch rod 202 contacts and collides with the impact plate 402. The energy accumulated by the compression spring 5 is stretched to assist the small punch block 401 to move upward, while the large punch rod 201 cannot contact the impact plate 402, and performs an empty upward punching action. After that, the electric telescopic rod 406 is started to reset the impact plate 402 so that the next impact can be performed. It needs to be switched. When the large punch block 4 is pressed, the rotating motor 505 rotates 180 degrees, and the impact plate 402 on the large punch block 4 changes from an upper lifting block 502 to a lower pressing block 504, and the lower pressing block 504 on the small punch block 401 changes to an upper lifting block 502. After completing one stamping, the hydraulic rod 102 lifts the upper mold 101, takes out the stamped stator, and then puts in a new sheet 105 again to start the next round of stamping work. The driving method of the large punch rod and the small punch rod is an existing mature technology, which is included in the lower mold assembly, so it is not elaborated in detail.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stator slot stamping die, comprising a main body (1), characterized in that: An upper mold (101) is provided inside the main body (1), a hydraulic rod (102) is symmetrically provided at the top of the upper mold (101), a large punching groove (103) is provided inside the upper mold (101), a small punching groove (104) is provided on one side of the large punching groove (103), a lower mold (2) is provided at the bottom end of the main body (1), a large punching rod (201) is provided inside the lower mold (2), a small punching rod (202) is provided on one side of the large punching rod (201), a cutting machine (203) is provided on one side of the small punching rod (202), and a thin sheet (105) is provided at the bottom of the upper mold (101); A support plate (3) is symmetrically arranged inside the main body (1); a large punch block (4) is arranged on the top of the large punch rod (201); a small punch block (401) is arranged on one side of the large punch block (4); an impact plate (402) is arranged at the bottom ends of the large punch block (4) and the small punch block (401); positioning rods (403) are symmetrically arranged at both ends of the impact plate (402); a compression spring (5) is symmetrically arranged at the bottom end of the impact plate (402); a telescopic rod (5) is arranged inside the compression spring (5). 01), a support frame (404) is provided inside the main body (1), a support block (405) is provided near the center of the support frame (404), an electric telescopic rod (406) is provided at the bottom end of the support plate (3), and lifting blocks (502) are symmetrically provided at both ends of the impact plate (402), the lifting blocks (502) are connected to a turntable (503), a lower pressing block (504) is provided on the turntable (503), and the turntable (503) is connected to a rotating motor (505).

2. The stator slot stamping die according to claim 1, characterized in that: Two groups of avoidance grooves are provided through the interior of the support frame (404), and the sizes of the two avoidance grooves are respectively adapted to the large punch rod (201) and the small punch rod (202).

3. The stator slot stamping die according to claim 1, characterized in that: The large punch block (4) and the small punch block (401) are adapted to the large punch groove (103) and the small punch groove (104); the impact plate (402) and the positioning rod (403) are slidably connected, and a limit plate is provided at the top of the positioning rod (403) to prevent the impact plate (402) from slipping off.

4. The stator slot stamping die according to claim 1, characterized in that: The telescopic rod (501) comprises a large sleeve and a small sleeve, the small sleeve is arranged inside the large sleeve, and one end of the small sleeve is provided with a block for preventing slipping, and both ends of the compression spring (5) are provided with mounting plates, and the mounting plates are respectively fixedly connected to the impact plate (402) and the support frame (404).

5. The stator slot stamping die according to claim 1, characterized in that: Pressure sensors are provided on the surfaces of the upper lifting block (502) and the lower pressing block (504), a reset plate is provided at the output end of the electric telescopic rod (406), a soft cushion is provided on one side of the reset plate, and a protective cover is provided on the outside of the electric telescopic rod (406).

6. The stator slot stamping die according to claim 1, characterized in that: The impact plate (402) is made of high-hardness alloy steel. A control panel is provided on one side of the main body (1). The control panel is electrically connected to the hydraulic rod (102), the lower mold (2), the electric telescopic rod (406), and the rotating motor (505), so that users can perform switch control and speed adjustment.

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