A stamping and demolding mechanism for a motor housing

Abstract

The present invention relates to the field of motor housing processing, and particularly to a stamping and demolding mechanism for a motor housing, which includes a stamping body and a stamping seat distributed vertically. The stamping body is connected with a driving member, and the driving member drives the stamping body to move towards the stamping seat. The stamping seat includes a pressing table, an outer sliding seat slides outside the pressing table, a retaining ring slides outside the outer sliding seat, and the retaining ring, the outer sliding seat and the pressing table are elastically connected. The lower part of the outer sliding seat is connected with the pressing table through a locking component. The stamping body includes a pressing column. The present invention uses the outer stamping shell and the inner stamping shell sleeved slidingly as the pressing main body, and the outer sliding seat and the pressing table sleeved slidingly as the pressed main body, and completes two consecutive stretching stampings on the plate in one stamping process, so that the motor wind shield shell is formed in one processing. Compared with the traditional motor housing processing equipment, it greatly saves the investment and use of the equipment, does not need to transfer the plate, saves costs, occupies less equipment space, and also omits the connection operations between each process, improving the processing efficiency.

Description

Technical Field

[0001] The present invention relates to the field of motor housing processing, and particularly to a stamping and demolding mechanism for a motor housing. Background Art

[0002] The tail end housing of a motor is also called a wind shield housing. The wind shield housing is processed by a stamping die and wind holes are opened on the end face of the formed wind shield housing.

[0003] For the stamping process of the wind shield, a circular blank is placed in the stamping die to form a cylindrical housing, and then wind holes are punched on the end face of the housing. Since the wind shield housing is formed into a cylindrical shell by axially stretching the edge of the raw material blank, excessive stretching is likely to occur during one-time forming, resulting in uneven wall thickness of the wind shield housing or even tearing. Therefore, at least two consecutive stretches are required to reach the set size for the stretching process of the wind shield housing. The existing stamping equipment for motor wind shield housings needs to set up multiple stations to perform consecutive stretching operations in sequence, and manipulators need to be configured between each station to demold and transfer workpieces. This not only requires a large investment in equipment but also occupies a large processing area, and the processing cost needs to be compressed. Summary of the Invention

[0004] The purpose of the present invention is to solve the following problems existing in the prior art: The existing stamping equipment for motor wind shield housings needs to set up multiple stations to perform consecutive stretching operations in sequence, and manipulators need to be configured between each station to demold and transfer workpieces. This not only requires a large investment in equipment but also occupies a large processing area, and the processing cost needs to be compressed.

[0005] To solve the problems existing in the prior art, the present invention provides a stamping and demolding mechanism for a motor housing, which includes a stamping body and a stamping seat distributed vertically. The stamping body is connected with a driving member, and the driving member drives the stamping body to move towards the stamping seat; the stamping seat includes a pressing table, and a ring seat slides outside the pressing table, and a retaining ring slides outside the ring seat. The retaining ring, the ring seat, and the pressing table are elastically connected, and the lower part of the ring seat is connected to the pressing table through a locking component; the stamping body includes a pressing column, and an inner stamping shell slides outside the pressing column, and there is an outer stamping shell outside the inner stamping shell. The outer stamping shell, the inner stamping shell, and the pressing column are elastically connected, and a pressing plate for pressing the inner stamping shell is fixed at the top of the outer stamping shell; the outer stamping shell is vertically aligned with the retaining ring, the stamping shell is vertically aligned with the ring seat, and the pressing column is vertically aligned with the pressing table.

[0006] Preferably, the locking component includes a positioning column, the positioning column slides radially through the ring seat along the ring seat, the positioning column is elastically connected to the ring seat through a spring, the outer wall of the pressing table has a positioning hole adapted to the positioning column, a lower inclined block is fixed at the outer end of the positioning column, and an upper inclined block is fixed at the bottom of the retaining ring, and the upper inclined block is vertically aligned with the lower inclined block.

[0007] Preferably, the outer edges of the tops of the ring seat and the pressing table both have rounded corners.

[0008] Preferably, a plurality of limiting blocks are annularly distributed on the upper surface edge of the retaining ring.

[0009] Preferably, vertical strip grooves are formed on the outer wall of the pressing platform, and a resisting block is fixed on the inner wall of the ring seat, and the resisting block is placed in the strip groove.

[0010] Preferably, the driving member includes a sliding frame, the pressing plate slides vertically with the sliding frame, a cylinder is vertically fixed on the side of the sliding frame, and the telescopic end of the cylinder is fixedly connected to the pressing plate.

[0011] Preferably, a knife cavity penetrating the bottom surface is formed in the pressing column, a punching knife is elastically fitted in the knife cavity, a pressing handle is fixed on the top of the punching knife, the pressing handle slides through the top of the pressing column, and a punching hole for aligning the punching knife is formed on the top of the pressing platform.

[0012] Preferably, the pressing platform internally has a cavity communicating with the punching hole, and a discharge port is provided at the bottom of the cavity.

[0013] Compared with the related art, the motor housing stamping and demolding mechanism provided by the present invention has the following beneficial effects:

[0014] 1. The present invention uses the externally stamped shell and the internally stamped shell sleeved slidably as the pressing main body, and the ring seat and the pressing platform sleeved slidably as the pressed main body, and completes two consecutive stretching stampings on the plate in one stamping process, so that the motor wind shield shell is formed in one processing. Compared with the traditional motor housing processing equipment, it greatly saves the investment and use of equipment, does not need to transfer the plate, saves costs and equipment space occupation, and omits the connection operations between each process, improving the processing efficiency;

[0015] 2. The present invention sleeved a retaining ring slidably outside the ring seat. After the first stretching, the upper inclined block at the lower part of the retaining ring squeezes the lower inclined block to unlock the ring seat, and the second stretching stamping is completely connected;

[0016] 3. The present invention forms strip grooves on the surface of the pressing platform. When the ring seat resets, it drives the resisting block to move in the strip groove, and the formed motor wind shield shell can be stably pushed upward through the resisting block to complete demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a schematic diagram of the non-stamping state structure of the stamping seat of the present invention;

[0019] Figure 3 is a schematic diagram of the first stamping state structure of the stamping seat of the present invention;

[0020] Figure 4 is a schematic diagram of the second stamping state structure of the stamping seat of the present invention;

[0021] Figure 5 Schematic diagram of the non-stamped state structure of the stamping body of the present invention;

[0022] Figure 6 Schematic diagram of the alignment structure of the stamping body and the stamping seat of the present invention in the non-stamped state;

[0023] Figure 7 Schematic diagram of the alignment structure of the stamping body and the stamping seat of the present invention in the first stamping state;

[0024] Figure 8 Schematic diagram of the alignment structure of the stamping body and the stamping seat of the present invention in the second stamping state;

[0025] Figure 9 Schematic diagram of the punching processing structure of the present invention;

[0026] Figure 10 For the present invention Figure 6 Enlarged schematic diagram of part A;

[0027] Figure 11 For the present invention Figure 7 Enlarged schematic diagram of part B.

[0028] Reference numerals in the figure: 1, retaining ring; 2, ring seat; 3, pressing table; 4, outer stamping shell; 5, inner stamping shell; 6, pressing column; 7, punching knife; 8, punching hole; 9, strip groove; 10, abutting block; 11, limiting block; 12, pressing handle; 13, knife cavity; 14, discharge port; 15, positioning hole; 16, positioning column; 17, lower inclined block; 18, upper inclined block; 19, cylinder; 20, sliding frame; 21, pressing plate. Detailed implementation manners

[0029] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0030] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0031] Embodiment 1

[0032] As Figure 1 shown, a stamping and demolding mechanism for a motor housing is composed of three parts: a stamping body, a stamping seat, and a driving member. The stamping body and the stamping seat are distributed up and down;

[0033] The driving member includes a carriage 20. The carriage 20 is based on a bottom plate. Four vertical sliding rods are fixed at the four top corner positions of the bottom plate. A cylinder 19 is vertically fixed between the sliding rods on both sides of the bottom plate. A sliding sleeve is sleeved outside the sliding rod. A pressing plate 21 is fixedly connected to the sliding sleeve, so that the pressing plate 21 slides vertically relative to the carriage 20. The telescopic end of the cylinder 19 is fixedly connected to the pressing plate 21, and the pressing plate 21 is driven to move up and down by the expansion and contraction of the cylinder 19;

[0034] The cylinder 19 can be replaced by a linear movement component such as an electric push rod or a lead screw assembly;

[0035] Such as Figures 5 - 9 As shown, the stamping body includes an outer stamping shell 4, an inner stamping shell 5, and a pressing column 6. The inner stamping shell 5 is slidably sleeved outside the pressing column 6. The outer stamping shell 4 is slidably sleeved outside the inner stamping shell 5. Annular grooves are provided on the inner walls of the outer stamping shell 4 and the inner stamping shell 5. Annular handles are fixed on the outer walls of the inner stamping shell 5 and the pressing column 6. The outer stamping shell 4, the inner stamping shell 5, and the pressing column 6 are sequentially limited and slid through the annular grooves and the annular handles. Springs are arranged in the annular grooves to make the outer stamping shell 4, the inner stamping shell 5, and the pressing column 6 elastically connected to each other. The pressing plate 21 is horizontally fixedly connected to the top of the outer stamping shell 4;

[0036] Such as Figures 2 - 4 As shown in FIGS. 6-9, the stamping seat includes a retaining ring 1, a ring seat 2, and a pressing table 3. The bottom of the pressing table 3 is fixedly connected to the bottom of the carriage 20. The ring seat 2 is slidably sleeved outside the pressing table 3. The retaining ring 1 is slidably sleeved outside the ring seat 2. Vertical guide grooves are provided on the outer walls of the ring seat 2 and the pressing table 3. Guide blocks are provided on the inner walls of the retaining ring 1 and the ring seat 2. The retaining ring 1, the ring seat 2, and the pressing table 3 are sequentially limited and slid through the guide blocks and the guide grooves. The retaining ring 1, the ring seat 2, and the pressing table 3 are elastically connected by springs. Rounding corners are provided at the outer edges of the tops of the ring seat 2 and the pressing table 3;

[0037] Such as Figures 10 - 11 As shown, the locking assembly includes a positioning column 16. The positioning column 16 slidably penetrates through the lower part of the edge of the ring seat 2, and the sliding direction of the positioning column 16 is aligned with the radial direction of the ring seat 2. A lower inclined block 17 is fixed at the outer end of the positioning column 16. A spring is sleeved outside the positioning column 16 to elastically connect the lower inclined block 17 to the outer wall of the ring seat 2. A positioning hole 15 is provided on the outer wall of the pressing table 3. The positioning column 16 is inserted into the positioning hole 15 in a mating manner. An upper inclined block 18 is fixed at the bottom of the retaining ring 1, and the upper inclined block 18 is vertically aligned with the lower inclined block 17;

[0038] In the non-stamping state, the retaining ring 1 and the ring seat 2 form a lower flat surface with the top surface of the pressing table 3 under the action of elastic force. The outer stamping shell 4 and the inner stamping shell 5 form an upper flat surface with the bottom surface of the pressing column 6 under the action of elastic force. A plurality of limiting blocks 11 are annularly distributed on the upper surface edge of the retaining ring 1. The raw material plate of the motor wind cover shell is placed on the lower flat surface and is centered under the action of the limiting blocks 11. The cylinder 19 is opened to contract, so that the pressing plate 21 pushes the outer stamping shell 4 downward until the upper flat surface contacts the raw material plate on the lower flat surface;

[0039] Since the positioning post 16 is inserted into the positioning hole 15, the ring seat 2 and the pressing table 3 are kept relatively fixed, and the retaining ring 1 is in an elastic free state. The air cylinder 19 continuously pulls down the outer stamping shell 4. Since the bottom surfaces of the inner stamping shell 5 and the pressing column 6 abut against the raw material part, the outer stamping shell 4 moves downward independently. The bottom of the outer stamping shell 4 stamps the raw material part, so that the edge part of the raw material part is stretched along the outer wall of the ring seat 2 until the edge of the raw material part is uniformly stretched along the outer wall of the ring seat 2, completing the first stretching;

[0040] As Figures 6 - 7 shown, during the first stretching process, the retaining ring 1 is abutted by the outer stamping shell 4 and moves downward against the elastic force until the upper inclined block 18 moves downward to contact and press the lower inclined block 17, so that the positioning post 16 moves out of the positioning hole 15 against the elastic force, releasing the locking between the ring seat 2 and the pressing table 3. At this time, the pressing plate 21 abuts against the top of the inner stamping shell 5. The continuously descending pressing plate 21 makes the inner stamping shell 5 move downward synchronously with the outer stamping shell 4, and the ring seat 2 follows and moves downward under extrusion. The inner stamping shell 5 performs secondary necking and stretching on the workpiece after the first stretching along the outer wall of the pressing table 3 until the inner stamping shell 5 descends to the top flush with the top of the pressing column 6, completing the secondary stamping and stretching of the raw material part;

[0041] As Figure 8 shown, the air cylinder 19 extends, making the pressing plate 21 drive the outer stamping shell 4 to move upward. The inner stamping shell 5 and the pressing column 6 elastically move upward in sequence. The retaining ring 1 and the ring seat 2 are reset under the action of elastic force. A vertically extending strip groove 9 is opened on the outer wall of the pressing table 3. An abutting block 10 is fixed on the inner wall of the ring seat 2. The abutting block 10 is placed in the strip groove 9. During the reset process of the ring seat 2, the abutting block 10 moves upward in the strip groove 9, and the abutting block 10 upwardly abuts against the stamped wind shield shell, making the wind shield shell move upward to complete demolding. When the ring seat 2 completely moves to the top of the pressing table 3, the positioning post 16 is inserted into the positioning hole 15 under the action of elastic force, locking the ring seat 2 and the pressing table 3 again for the next stamping forming process;

[0042] Embodiment 2

[0043] As Figure 9 shown, a tool cavity 13 is opened inside the pressing column 6. The bottom of the tool cavity 13 has a tool opening penetrating the bottom surface of the pressing column 6. The punching knife 7 is slidably fitted in the tool cavity 13 and is elastically installed by a spring. The cutting edge part of the punching knife 7 is received in the tool opening. The cylindrical pressing handle 12 is fixedly connected to the top of the punching knife 7. The pressing handle 12 slidably passes through the top of the pressing column 6. A punching hole 8 for aligning the punching knife 7 is opened on the top of the pressing table 3. The inside of the pressing table 3 has a cavity penetrating the punching hole 8. The bottom of the cavity is inclined, and the edge of the inclined part has a discharge port 14 penetrating the pressing table 3;

[0044] After the workpiece is double-stamped, the cylinder 19 continuously contracts, causing the pressure plate 21 to exert pressure on the top of the pressure handle 12. The pressure acts on the punching knife 7, causing the punching knife 7 to penetrate through the tool port against the elastic force and stamp into the punching hole 8. The punching knife 7 punches the air outlet on the end face of the formed air hood shell, and the remaining material is discharged into the cavity. Finally, the remaining material is discharged from the discharge port 14.

Claims

1. A stamping and demolding mechanism for a motor housing, comprising a stamping body and a stamping seat distributed up and down, characterized in that, The stamping body is connected with a driving part, and the driving part drives the stamping body to move towards the stamping seat; The stamping seat includes a pressing table (3), a ring seat (2) slides outside the pressing table (3), a retaining ring (1) slides outside the ring seat (2), and the retaining ring (1), the ring seat (2), and the pressing table (3) are elastically connected. The lower part of the ring seat (2) is connected to the pressing table (3) through a locking component; The stamping body includes a pressing column (6), an inner stamping shell (5) slides outside the pressing column (6), an outer stamping shell (4) is outside the inner stamping shell (5), and the outer stamping shell (4), the inner stamping shell (5), and the pressing column (6) are elastically connected. A pressing plate (21) for pressing the inner stamping shell (5) is fixed at the top of the outer stamping shell (4); The outer stamping shell (4) is vertically aligned with the retaining ring (1), the pressing shell is aligned with the ring seat (2), and the pressing column (6) is aligned with the pressing table (3); The locking component includes a positioning column (16), the positioning column (16) slides through the ring seat (2) along the radial direction of the ring seat (2), the positioning column (16) is elastically connected to the ring seat (2) through a spring, a positioning hole (15) adapted to the positioning column (16) is provided on the outer wall of the pressing table (3), a lower inclined block (17) is fixed at the outer end of the positioning column (16), and an upper inclined block (18) is fixed at the bottom of the retaining ring (1), and the upper inclined block (18) is vertically aligned with the lower inclined block (17); A vertically extending strip groove (9) is opened on the outer wall of the pressing table (3), and a resisting block (10) is fixed on the inner wall of the ring seat (2), and the resisting block (10) is placed in the strip groove (9).

2. The stamping and demolding mechanism of the motor housing according to claim 1, characterized in that The outer edges of the tops of the ring seat (2) and the pressing table (3) both have rounded corners.

3. The motor housing stamping and demolding mechanism according to claim 1, characterized in that, A plurality of limiting blocks (11) are annularly distributed on the edge of the upper surface of the retaining ring (1).

4. The stamping and demolding mechanism of the motor housing according to claim 1, characterized in that, The driving part includes a sliding frame (20), the pressing plate (21) slides vertically with the sliding frame (20), a cylinder (19) is vertically fixed on the side of the sliding frame (20), and the telescopic end of the cylinder (19) is fixedly connected to the pressing plate (21).

5. The stamping and demolding mechanism of the motor housing according to claim 1, wherein A knife cavity (13) penetrating the bottom surface is opened in the pressing column (6), a punching knife (7) is elastically adapted in the knife cavity (13), a pressing handle (12) is fixed at the top of the punching knife (7), the pressing handle (12) slides through the top of the pressing column (6), and a punching hole (8) for aligning with the punching knife (7) is opened at the top of the pressing table (3).

6. The stamping and demolding mechanism of the motor housing according to claim 4, wherein, A cavity communicating with the punching hole (8) is provided inside the pressing table (3), and a discharge port (14) is provided at the bottom of the cavity.

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