Mechanical accessory press fitting device

Abstract

The utility model belongs to the technical field of machining, and discloses a mechanical accessory press fitting device which comprises a machining table, a vertical rod is arranged at the top of the machining table, upper positioning blocks, lower positioning blocks and a positioning plate are arranged on one side of the vertical rod, the lower positioning blocks are located between the upper positioning blocks, and the positioning plate is located between the lower positioning blocks. The upper positioning block and the positioning plate slide up and down in the height direction of the vertical rod, the top of the upper positioning block and the top of the lower positioning block are each provided with a circular groove, positioning holes corresponding to hole sites in a punching sheet are evenly distributed in the circular grooves, and positioning needles corresponding to the positioning holes are arranged at the top of the positioning plate. The positioning needle penetrates through the positioning hole; according to the utility model, the positioning plates and the positioning needles are arranged, after the positioning needles are inserted into the positioning holes in the lower positioning plate, the punching sheets are arranged in the circular grooves after penetrating the positioning needles one by one, and then the upper positioning block moves downwards, so that the positioning needles are inserted into the positioning holes in the upper positioning block, and the hole positions of the punching sheets can be ensured to be consistent.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and specifically relates to a mechanical accessory pressing device. Background Technology

[0002] The rotor is one of the important mechanical components of an electric motor. The rotor is composed of multiple laminations made of silicon steel, which are connected together by copper strips to form a closed circuit.

[0003] A Chinese patent application with application number CN202322296778.9 describes a rotor copper bar pressing device. This pressing device places laminations between a lower positioning block and an upper positioning block. After alignment, the upper positioning block, which can move up and down, presses and fixes the laminations. After all copper bars are inserted into the round holes on the laminations, the pressure plate is controlled by a hydraulic telescopic rod to press all the copper bars, which greatly improves the pressing efficiency. However, the lower and upper positioning blocks of the above pressing device do not have a structure for positioning the laminations. It cannot ensure that the hole positions of each lamination are consistent, nor can it ensure that each lamination is consistent with the positioning hole positions on the lower and upper positioning blocks. Therefore, the copper bars cannot be smoothly inserted into the holes on the laminations, and the pressing efficiency cannot be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a mechanical accessory pressing device to solve the problem mentioned in the background art that the lower and upper positioning blocks do not have a structure for positioning the punches, which makes it impossible to ensure that the hole positions of each punch are consistent, and also makes it impossible to ensure that the position of each punch is consistent with the positioning hole on the lower and upper positioning blocks. As a result, the copper strip cannot be smoothly inserted into the hole on the punch, and the pressing efficiency cannot be improved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a mechanical accessory pressing device, including a processing table, a vertical rod on the top of the processing table, an upper positioning block, a lower positioning block and a positioning plate on one side of the vertical rod, the lower positioning block being located between the upper positioning blocks, the upper positioning block and the positioning plate sliding up and down along the height direction of the vertical rod, a circular groove being opened on the top of the upper positioning block and the lower positioning block, and positioning holes corresponding to the holes on the punch plate being evenly distributed in the circular groove, and a positioning pin corresponding to the positioning hole being provided on the top of the positioning plate, the positioning pin penetrating the positioning hole.

[0006] Preferably, it further includes a limiting structure for fixing the lamination, the limiting structure including a spring and a pressure block disposed at the middle position of the bottom of the upper positioning block, the bottom of the spring being connected to the pressure block, and the pressure block being located in a circular groove on the lower positioning block when the upper positioning block and the lower positioning block coincide.

[0007] Preferably, the limiting structure includes a screw and a clamping plate that pass through both sides of the upper end of the lower positioning block, and the end of the screw near the circular groove is connected to the clamping plate.

[0008] Preferably, both the upper positioning block and the positioning plate are slidably sleeved on the outside of the vertical rod via a sliding sleeve.

[0009] Preferably, the top of the vertical rod is provided with a top plate, and the bottom of the top plate is provided with a hydraulic telescopic rod, the telescopic end of which is connected to a pressure plate.

[0010] Preferably, the positioning pin passes through the positioning hole on the lower positioning block and the hole on the punch in sequence and extends into the positioning hole of the upper positioning block.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model is provided with a positioning plate and a positioning pin. After the positioning pin is inserted into the positioning hole on the lower positioning plate, the punches are then placed on the positioning pins one by one and placed in the circular groove. Then, the upper positioning block is moved down so that the positioning pin is inserted into the positioning hole on the upper positioning block. This ensures that the hole positions of each punch are consistent and that the positioning hole positions of each punch are consistent with those of the lower and upper positioning blocks, which is conducive to the smooth insertion of the copper strip into the hole on the punch.

[0013] (2) The present invention is provided with a limiting structure for fixing the punch pieces. When each punch piece is in the same position as the positioning hole on the lower positioning block and the upper positioning block, the punch piece is limited by the limiting structure to avoid misalignment of the punch piece, which further facilitates the smooth insertion of the copper strip and improves the pressing efficiency. Attached Figure Description

[0014] Figure 1 This is a front view of the present invention;

[0015] Figure 2 This is a rear view of the present invention;

[0016] Figure 3 This is a schematic diagram of the upper positioning block of this utility model;

[0017] Figure 4 This is a schematic diagram showing the cooperation between the positioning plate and the lower positioning block of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the lower positioning block of this utility model;

[0019] In the diagram: 1. Processing table; 2. Vertical rod; 3. Upper positioning block; 4. Lower positioning block; 5. Positioning plate; 6. Positioning pin; 7. Spring; 8. Pressure block; 9. Circular groove; 10. Positioning hole; 11. Screw; 12. Clamping plate; 13. Sliding sleeve; 14. Top plate; 15. Hydraulic telescopic rod; 16. Pressure plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see Figures 1-5 As shown, a mechanical accessory pressing device includes a processing table 1. A vertical rod 2 is provided on the top of the processing table 1. An upper positioning block 3, a lower positioning block 4, and a positioning plate 5 are provided on one side of the vertical rod 2. The lower positioning block 4 is located at the bottom of the upper positioning block 3. The upper positioning block 3 and the positioning plate 5 slide up and down along the height direction of the vertical rod 2. A circular groove 9 is provided on the top of the upper positioning block 3 and the lower positioning block 4. Positioning holes 10 corresponding to the holes on the punch are evenly distributed in the circular groove 9. A positioning pin 6 corresponding to the positioning hole 10 is provided on the top of the positioning plate 5. The positioning pin 6 passes through the positioning hole 10.

[0023] The positioning pin 6 passes through the positioning hole 10 on the lower positioning block 4 and the hole on the punch in sequence and extends into the positioning hole 10 of the upper positioning block 3;

[0024] The top of the vertical rod 2 is provided with a top plate 14, and the bottom of the top plate 14 is provided with a hydraulic telescopic rod 15, and the telescopic end of the hydraulic telescopic rod 15 is connected to a pressure plate 16.

[0025] The hydraulic telescopic rod 15 drives the pressure plate 16 to move downwards, thereby pressing the copper strip into the punch.

[0026] Both the upper positioning block 3 and the positioning plate 5 are slidably sleeved on the outside of the vertical rod 2 via the sliding sleeve 13;

[0027] Adjusting bolts are provided on the sliding sleeve 13 to facilitate fixing the position of the upper positioning block 3 and the positioning plate 5 after they have been moved.

[0028] It also includes a limiting structure for fixing the punch sheet. The limiting structure includes a spring 7 and a pressure block 8 located at the bottom middle position of the upper positioning block 3. The bottom of the spring 7 is connected to the pressure block 8. When the upper positioning block 3 and the lower positioning block 4 overlap, the pressure block 8 is located in the circular groove 9 on the lower positioning block 4.

[0029] In the above technical solution, during processing, the positioning plate 5 is moved upward so that the positioning pin 6 is inserted into the positioning hole 10 on the lower positioning block 4. Then, the punches are sequentially threaded onto the positioning pin 6 and stacked in the circular groove 9 on the lower positioning block 4. Then, the upper positioning block 3 is moved downward so that the top of the positioning pin 6 is inserted into the positioning hole 10 on the upper positioning block 3. At the same time, the upper positioning block 3 drives the pressure block 8 to move downward synchronously to press the center position of the punch. By fixing the upper positioning block 3 in the moved position, the stacked punches can be pressed together by the spring 7 and the pressure block 8, so that the hole position of the punch is consistent with the position of the positioning hole on the lower and upper positioning blocks, avoiding the misalignment of the punches. At this time, the copper strip is inserted into the positioning hole 10 on the upper positioning block 3. Then, the positioning plate 5 is moved downward so that the positioning pin 6 is withdrawn from the hole position and positioning hole 10 on the punch, so that the copper strip can be smoothly inserted, improving the pressing efficiency.

[0030] Example 2;

[0031] Unlike Example 1, as Figure 4 As shown, the limiting structure includes a screw 11 and a clamping plate 12 that pass through both sides of the upper end of the lower positioning block 4. The end of the screw 11 near the circular groove 9 is connected to the clamping plate 12.

[0032] In the above technical solution, when the positioning pin 6 is inserted into the positioning hole 10 and the punch hole on the lower positioning block 4 in sequence and extends into the positioning hole 10 of the upper positioning block 3, the screw 11 is rotated. The rotation of the screw 11 drives the clamping plate 12 to move toward the punch, thereby limiting and fixing the stacked punches through the clamping plate 12 to prevent the punches from being misaligned. Then the positioning pin 6 is withdrawn from the hole and the positioning hole 10 on the punch, so that the copper strip can be inserted smoothly.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanical accessory pressing device, comprising a processing table (1), characterized in that: The processing table (1) is provided with a vertical rod (2) on the top. An upper positioning block (3), a lower positioning block (4) and a positioning plate (5) are provided on one side of the vertical rod (2). The lower positioning block (4) is located at the bottom of the upper positioning block (3). The upper positioning block (3) and the positioning plate (5) slide up and down along the height direction of the vertical rod (2). The top of the upper positioning block (3) and the lower positioning block (4) are provided with circular grooves (9). The circular grooves (9) are evenly distributed with positioning holes (10) corresponding to the holes on the punch. The top of the positioning plate (5) is provided with positioning pins (6) corresponding to the positioning holes (10). The positioning pins (6) penetrate the positioning holes (10).

2. The mechanical accessory pressing device according to claim 1, characterized in that: It also includes a limiting structure for fixing the punch, the limiting structure including a spring (7) and a pressure block (8) set at the middle position of the bottom of the upper positioning block (3), the bottom of the spring (7) is connected to the pressure block (8), and when the upper positioning block (3) and the lower positioning block (4) overlap, the pressure block (8) is located in the circular groove (9) on the lower positioning block (4).

3. The mechanical accessory pressing device according to claim 2, characterized in that: The limiting structure includes a screw (11) and a clamping plate (12) that pass through both sides of the upper end of the lower positioning block (4). The end of the screw (11) near the circular groove (9) is connected to the clamping plate (12).

4. The mechanical accessory pressing device according to claim 1, characterized in that: The upper positioning block (3) and the positioning plate (5) are both slidably sleeved on the outside of the vertical rod (2) through the sliding sleeve (13).

5. The mechanical accessory pressing device according to claim 1, characterized in that: The top of the vertical rod (2) is provided with a top plate (14), and the bottom of the top plate (14) is provided with a hydraulic telescopic rod (15), and the telescopic end of the hydraulic telescopic rod (15) is connected to a pressure plate (16).

6. The mechanical accessory pressing device according to claim 1, characterized in that: The positioning pin (6) passes through the positioning hole (10) on the lower positioning block (4) and the hole on the punch in sequence and extends into the positioning hole (10) of the upper positioning block (3).

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