A continuous motor housing stretching apparatus

Abstract

This utility model provides a continuous stretching device for motor housings, including an upper die base, a lower die base, an upper stamping die, a lower stamping die, and a conveying mechanism. The upper die base is located above the lower die base and is used to connect to a lifting power mechanism. Multiple sets of upper stamping dies are uniformly fixed below the upper die base along the X-axis. The lower stamping dies are fixed on the lower die base and are also arranged in multiple sets, each corresponding to the lower part of the upper stamping dies. The conveying mechanism includes a mounting frame, a Y-axis drive assembly, a moving bracket, a drive rod, an X-axis drive assembly, a connector, and a clamping and conveying assembly. The advantages of this design are: it can accommodate the conveying of workpieces at various stamping stations; the inner side of the clamping plate is set with an arc matching the outer diameter of the workpiece, thereby stably conveying the workpiece to the next station; at the same time, multiple sets of clamping and conveying assemblies are driven by the same X-axis drive assembly and Y-axis drive assembly, which greatly simplifies the structure of the conveying mechanism and reduces the manufacturing cost of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of motor housing manufacturing technology, and in particular to a continuous stretching device for motor housing. Background Technology

[0002] The outer layer of a micro motor is a protective shell, typically made of alloy material. During its manufacturing, a stretching and stamping process is often used to press the alloy sheet into a cylindrical motor shell. This stretching process offers advantages such as ease and speed. However, due to the significant depth required in the stretching process, multiple stretching operations are often employed. In continuous stretching equipment, each stretching station requires a separate conveyor mechanism to continuously transport the workpiece to subsequent stations, resulting in a bulky transmission structure and high manufacturing costs. Therefore, it is necessary to develop a continuous stretching equipment for motor shells to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a continuous stretching device for motor housings to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A continuous stretching device for motor housings includes an upper die base, a lower die base, an upper stamping die, a lower stamping die, and a conveying mechanism. The upper die base is located above the lower die base and is used to connect to a lifting power mechanism. Multiple sets of upper stamping dies are evenly fixed below the upper die base along the X-axis. The lower stamping dies are fixed on the lower die base, with multiple sets corresponding to the lower sides of the multiple sets of upper stamping dies. The conveying mechanism includes a mounting frame, a Y-axis drive assembly, a moving bracket, a drive rod, an X-axis drive assembly, a connector, and a clamping and conveying assembly. Two sets of mounting frames are fixed on the left and right sides of the lower die base, respectively. The Y-axis drive assembly is fixed on the mounting frame. Two sets of moving brackets are fixed on the power output ends of the Y-axis drive assembly on the front and rear sides, respectively. The drive rod is arranged along the X-axis and slidably connected to the moving bracket below. The X-axis drive assembly is fixed on the left mounting frame, and the connector is fixed to the power output end of the X-axis drive assembly. Two sets of drive rods are... The left end is slidably connected to the front and rear ends of the connector. Multiple sets of clamping and transporting components are symmetrically fixed on two sets of drive rods. One set of clamping and transporting components is set on each of the front and rear sides above a set of stamping dies. The clamping and transporting components include a base plate, a movable plate, a hinge rod, a return spring, and a clamping plate. The base plate is fixed on the drive rod. The movable plate is above the base plate. The left and right sides of the base plate are provided with first limiting grooves. The left and right sides of the movable plate are provided with second limiting grooves. The lower end of the hinge rod is located in the first limiting groove and is rotatably mounted on the base plate. The upper end of the hinge rod is located in the second limiting groove and is rotatably mounted on the movable plate. Four sets of hinge rods are set and are located at the four corners of the base plate. The upper and lower ends of the return spring are connected to the middle of the movable plate and the middle of the base plate, respectively. The clamping plate is fixed on the movable plate and is located above one side of the stamping die. The upper end of the hinge rod is inclined towards the stamping die side, and the lower end of the return spring is inclined towards the stamping die side.

[0006] Further description of the present invention: The Y-axis drive assembly includes a Y-axis slide, a rotary drive assembly, and a drive screw. The rotary drive assembly and the Y-axis slide are both fixed on the mounting bracket. Two sets of Y-axis slides are provided, corresponding to the left and right sides of the rotary drive assembly, respectively. The middle part of the drive screw is fixed to the power output end of the rotary drive assembly. Both the front and rear ends of the drive screw are provided with threads, and the thread directions at both ends of the drive screw are opposite. The left and right ends below the movable bracket are slidably connected to the two sets of Y-axis slides, respectively. The two sets of movable brackets are threadedly connected to the front and rear ends of the drive screw, respectively.

[0007] Further description of the present invention: The connecting member includes a connecting rod, a sliding column, a first limiting block and a second limiting block. The middle part of the connecting rod is fixed to the power output end of the X-axis drive assembly. The front and rear sides of the connecting rod are provided with strip holes. The sliding column corresponds to the strip holes and is slidably connected to the strip holes. The first limiting block and the second limiting block are respectively fixed to the left and right ends of the sliding column. The left end of the drive rod is fixed on the second limiting block.

[0008] Further description of this utility model: It also includes a feeding track, which is fixed on the mounting bracket on the right side, and the left end of the feeding track corresponds to the right side of the stamping die.

[0009] The beneficial effects of this utility model are as follows: In the previous process, the alloy sheet is placed on the first stamping die. The upper die base is connected to the lifting power mechanism. The lifting power mechanism drives the upper die base and the stamping die to descend, stamping and stretching the alloy sheet. After stamping, the stamping die is reset. The Y-axis drive assembly drives the moving brackets on the front and rear sides to move closer to each other, thereby causing the clamping and conveying assembly to move towards the center through the drive rod. When the clamping plate contacts the outside of the workpiece, as the drive rod continues to move closer, the movable plate moves outward and upward relative to the base plate through the hinge rod. At the same time, the return spring is gradually stretched. Due to the upward movement of the movable plate, the workpiece can be lifted vertically upward while continuously clamping it, until the hinge rod is in contact with the inner part of the first or second limiting groove. When the workpiece comes into contact with the wall, it is completely detached from the stamping die. Then, driven by the X-axis drive assembly, the drive rod moves to the right through the connector, thus moving the workpiece above the stamping die of the next station. Next, the Y-axis drive assembly causes the clamping and conveying assemblies on both sides to gradually move away, opposite to the action during clamping. At this time, the spring gradually returns to its original state, and the movable plate moves inward and downward relative to the base plate, thus placing the workpiece vertically on the stamping die. Subsequently, the X-axis drive assembly drives the connector to reset. For each set of workpieces on the stamping die, they are simultaneously transported to the next station through the conveying mechanism, so that the alloy sheet can be quickly conveyed and continuously stamped and stretched, ultimately stretched into the shape of a motor housing. The advantages of this design are: by setting up clamping and conveying components, it can be compatible with conveying workpieces at various stamping stations. The inner side of the clamping plate is set with an arc that matches the outer diameter of the workpiece, so as to stably convey the workpiece to the next station. At the same time, multiple sets of clamping and conveying components are driven by the same X-axis drive component and Y-axis drive component, which greatly simplifies the structure of the conveying mechanism and reduces the manufacturing cost of the equipment. Attached Figure Description

[0010] Figure 1 This is an overall structural diagram of the present invention;

[0011] Figure 2 yes Figure 1 A magnified view of a portion of position A in the middle;

[0012] Figure 3 This is a structural diagram of the conveying mechanism in this utility model (where the drive rod and clamping and conveying components are hidden);

[0013] Figure 4 This is a structural diagram of the clamping and handling assembly in this utility model;

[0014] Explanation of reference numerals in the attached figures:

[0015] 1. Upper die holder; 2. Lower die holder; 3. Upper stamping die; 4. Lower stamping die; 5. Conveying mechanism; 51. Mounting bracket; 52. Y-axis drive assembly; 521. Y-axis slide; 522. Rotary drive assembly; 523. Drive screw; 53. Moving bracket; 54. Drive rod; 55. X-axis drive assembly; 56. Connecting piece; 561. Connecting rod; 5611. Strip hole; 562. Sliding column; 563. First limiting block; 564. Second limiting block; 57. Clamping and handling assembly; 571. Base plate; 5711. First limiting groove; 572. Movable plate; 5721. Second limiting groove; 573. Hinge rod; 574. Return spring; 575. Clamping plate; 6. Unloading track. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings:

[0017] like Figures 1 to 4As shown, a continuous stretching device for motor housing includes an upper die base 1, a lower die base 2, an upper stamping die 3, a lower stamping die 4, and a conveying mechanism 5. The upper die base 1 is located above the lower die base 2 and is used to connect to a lifting power mechanism. Multiple sets of upper stamping dies 3 are evenly fixed below the upper die base 1 along the X-axis. The lower stamping dies 4 are fixed on the lower die base 2, and multiple sets of lower stamping dies 4 are arranged, each corresponding to the lower part of the multiple sets of upper stamping dies 3. The conveying mechanism 5 includes a mounting bracket 51, a Y-axis drive assembly 52, a moving bracket 53, a drive rod 54, an X-axis drive assembly 55, a connector 56, and a clamp. The system includes a handling assembly 57, two sets of mounting brackets 51 fixed to the left and right sides of the lower mold base 2, a Y-axis drive assembly 52 fixed to the mounting bracket 51, two sets of movable brackets 53 fixed to the power output ends of the Y-axis drive assembly 52, a drive rod 54 slidably connected to the movable bracket 53 at its lower end along the X-axis, an X-axis drive assembly 55 fixed to the left side of the mounting bracket 51, a connector 56 fixed to the power output end of the X-axis drive assembly 55, two sets of drive rods 54 slidably connected at their left ends to the front and rear ends of the connector 56, and a clamping mechanism. Multiple sets of transport components 57 are symmetrically fixed to two sets of drive rods 54. One set of transport components 57 is positioned above a set of stamping dies 4 on each side, front and rear. Each transport component 57 includes a base plate 571, a movable plate 572, a hinge rod 573, a return spring 574, and a clamping plate 575. The base plate 571 is fixed to the drive rods 54. The movable plate 572 corresponds to the area above the base plate 571. The base plate 571 has first limiting grooves 5711 on both its left and right sides, and the movable plate 572 has second limiting grooves 5721 on both its left and right sides. The lower end of the hinge rod 573 corresponds to... The first limiting groove 5711 is rotatably mounted on the base plate 571. The upper end of the hinge rod 573 corresponds to the second limiting groove 5721 and is rotatably mounted on the movable plate 572. Four sets of hinge rods 573 are provided and correspond to the four corners of the base plate 571. The upper and lower ends of the return spring 574 are respectively connected to the middle of the movable plate 572 and the middle of the base plate 571. The clamping plate 575 is fixed on the movable plate 572 and corresponds to the upper side of the stamping die 4. The upper end of the hinge rod 573 is inclined towards the stamping die 4, and the lower end of the return spring 574 is inclined towards the stamping die 4.

[0018] In the previous process, the alloy sheet is placed on the first stamping die 4. The upper die base 1 is connected to the lifting power mechanism, which drives the upper die base 1 and the upper stamping die 3 to descend, stamping and stretching the alloy sheet. After stamping, the upper stamping die 3 returns to its original position. The Y-axis drive assembly 52 drives the moving brackets 53 on both sides to move closer to each other, thereby causing the clamping and conveying assembly 57 to move towards the center via the drive rod 54. When the clamping plate 575 contacts the outside of the workpiece, as the drive rod 54 continues to move closer, the movable plate 572 moves outward and upward relative to the base plate 571 via the hinge rod 573. At the same time, the return spring 574 is gradually stretched. Due to the upward movement of the movable plate 572, the workpiece can be lifted vertically upward while continuously clamping it, until the hinge rod 573 engages with the first limiting groove 5711 or the second limiting groove 572. When the inner wall of die 1 comes into contact with the workpiece, the workpiece is completely separated from the stamping die 4. Then, driven by the X-axis drive assembly 55, the drive rod 54 is moved to the right through the connector 56, so that the workpiece is moved above the stamping die 4 of the next station. Then, the Y-axis drive assembly 52 causes the clamping and conveying assemblies 57 on both sides to gradually move away, opposite to the action when clamping. At this time, the spring gradually returns to its original state, and the movable plate 572 moves inward and downward relative to the base plate 571, so that the workpiece is placed vertically on the stamping die 4. Then, the X-axis drive assembly 55 drives the connector 56 to reset. For each set of workpieces on the stamping die 4, they are simultaneously transported to the next station through the conveying mechanism 5, so that the alloy sheet can be quickly conveyed and continuously stamped and stretched, and finally stretched into the shape of the motor housing. The advantages of this design are: by setting up the clamping and conveying assembly 57, it can be compatible with the conveying of workpieces at each stamping station. The inner side of the clamping plate 575 is set with an arc that matches the outer diameter of the workpiece, so as to stably convey the workpiece to the next station. At the same time, multiple sets of clamping and conveying assemblies 57 are driven by the same X-axis drive assembly 55 and Y-axis drive assembly 52, which greatly simplifies the structure of the conveying mechanism 5 and reduces the manufacturing cost of the equipment.

[0019] The Y-axis drive assembly 52 includes a Y-axis slide 521, a rotary drive assembly 522, and a drive screw 523. Both the rotary drive assembly 522 and the Y-axis slide 521 are fixed on the mounting bracket 51. Two sets of Y-axis slides 521 are provided, corresponding to the left and right sides of the rotary drive assembly 522 respectively. The middle part of the drive screw 523 is fixed to the power output end of the rotary drive assembly 522. Both the front and rear ends of the drive screw 523 are threaded, and the thread directions of the two ends of the drive screw 523 are opposite. The left and right ends below the movable bracket 53 are slidably connected to the two sets of Y-axis slides 521 respectively. The two sets of movable brackets 53 are threadedly connected to the front and rear ends of the drive screw 523 respectively.

[0020] The rotary drive assembly 522 causes the drive screw 523 to rotate. Since the threads at both ends of the drive screw 523 are opposite, the movable brackets 53 on the front and rear sides can be driven to move inward or outward simultaneously along the Y-axis slide 521, thereby completing the clamping or placing of the workpiece by the clamping and handling assembly 57.

[0021] The connector 56 includes a connecting rod 561, a sliding column 562, a first limiting block 563, and a second limiting block 564. The middle part of the connecting rod 561 is fixed to the power output end of the X-axis drive assembly 55. The connecting rod 561 has a strip hole 5611 on both the front and rear sides. The sliding column 562 corresponds to the strip hole 5611 and is slidably connected to the strip hole 5611. The first limiting block 563 and the second limiting block 564 are respectively fixed to the left and right ends of the sliding column 562. The left end of the drive rod 54 is fixed to the second limiting block 564.

[0022] The drive rod 54 is slidably connected to the connecting rod 561 via the sliding column 562. The first limiting block 563 and the second limiting block 564 can limit the relative movement of the drive rod 54 and the connecting rod 561 in the left and right directions, thereby improving the accuracy of handling the workpiece.

[0023] This design also includes a feeding track 6, which is fixed on the mounting bracket 51 on the right side. The left end of the feeding track 6 corresponds to the right side of the stamping die 4.

[0024] As the clamping and conveying assembly 57 moves, the last set of workpieces on the stamping die 4 will also be moved to the right onto the unloading track 6 to arrange and unload the stretched motor housing.

[0025] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A continuous stretching device for motor housings, characterized in that: The system includes an upper die base, a lower die base, an upper stamping die, a lower stamping die, and a conveying mechanism. The upper die base is located above the lower die base and is used to connect to a lifting power mechanism. Multiple sets of upper stamping dies are evenly fixed below the upper die base along the X-axis. The lower stamping dies are fixed on the lower die base, and multiple sets of lower stamping dies are arranged, each corresponding to the lower part of the upper stamping dies. The conveying mechanism includes a mounting frame, a Y-axis drive assembly, a moving bracket, a drive rod, an X-axis drive assembly, a connector, and a clamping and conveying assembly. Two sets of mounting frames are provided and fixed to the left and right sides of the lower die base, respectively. The Y-axis drive assembly is fixed to the mounting frame. Two sets of moving brackets are provided and fixed to the power output ends on the front and rear sides of the Y-axis drive assembly, respectively. The drive rod is arranged along the X-axis and slidably connected to the moving bracket below. The X-axis drive assembly is fixed to the mounting frame on the left side. The connector is fixed to the power output end of the X-axis drive assembly. Two sets of drive rods are provided, with their left ends connected to the front and rear sides of the connector, respectively. The clamping and transporting components are slidably connected at both ends. Multiple sets of clamping and transporting components are symmetrically fixed on two sets of driving rods. One set of clamping and transporting components is set on each of the front and rear sides above one set of stamping die. The clamping and transporting components include a base plate, a movable plate, a hinge rod, a return spring, and a clamping plate. The base plate is fixed on the driving rod. The movable plate is above the base plate. The left and right sides of the base plate are provided with first limiting grooves. The left and right sides of the movable plate are provided with second limiting grooves. The lower end of the hinge rod is located in the first limiting groove and is rotatably mounted on the base plate. The upper end of the hinge rod is located in the second limiting groove and is rotatably mounted on the movable plate. Four sets of hinge rods are provided and are located at the four corners of the base plate. The upper and lower ends of the return spring are connected to the middle of the movable plate and the middle of the base plate, respectively. The clamping plate is fixed on the movable plate and is located above one side of the stamping die. The upper end of the hinge rod is inclined towards the stamping die side, and the lower end of the return spring is inclined towards the stamping die side.

2. The continuous stretching device for motor housing according to claim 1, characterized in that: The Y-axis drive assembly includes a Y-axis slide, a rotary drive assembly, and a drive screw. Both the rotary drive assembly and the Y-axis slide are fixed on the mounting bracket. Two sets of Y-axis slides are provided, corresponding to the left and right sides of the rotary drive assembly, respectively. The middle part of the drive screw is fixed to the power output end of the rotary drive assembly. Both ends of the drive screw are threaded, and the thread directions at both ends of the drive screw are opposite. The left and right ends below the movable bracket are slidably connected to the two sets of Y-axis slides, respectively. The two sets of movable brackets are threadedly connected to the front and rear ends of the drive screw, respectively.

3. The continuous stretching device for motor housing according to claim 1, characterized in that: The connector includes a connecting rod, a sliding column, a first limiting block, and a second limiting block. The middle part of the connecting rod is fixed to the power output end of the X-axis drive assembly. The connecting rod has strip-shaped holes on both its front and rear sides. The sliding column corresponds to the strip-shaped holes and is slidably connected to them. The first limiting block and the second limiting block are respectively fixed to the left and right ends of the sliding column. The left end of the drive rod is fixed to the second limiting block.

4. The continuous stretching device for motor housing according to claim 1, characterized in that: It also includes a feeding track, which is fixed on the mounting bracket on the right side, and the left end of the feeding track corresponds to the right side of the stamping die.

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