Motor rotor punching sheet stamping device

By designing a pressure roller assembly and an adjusting seat assembly in the motor rotor lamination stamping device, the stamping defect problem caused by unremoved metal shavings was solved, achieving high-quality stamping effect and adaptive adjustment.

CN223505994UActive Publication Date: 2025-11-04XUZHOU HONGRUNDA ELECTRIC VEHICLE CO LTD
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Patent Information

Application Number
CN202422882420.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-11-04
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

In the existing technology, during the stamping process of motor rotor laminations, if metal shavings are not removed, defects such as scratches and pits will appear on the surface of the material after stamping, affecting the yield of finished products.

Method used

A motor rotor lamination stamping device was designed, comprising a stamping machine body, a stamping cylinder, an adjusting seat assembly, a stamping head, and a pressure roller assembly. The pressure roller assembly adsorbs metal shavings before stamping, and a ring magnet is used to adsorb the metal shavings. The pressure roller spacing is adjusted by the adjusting seat assembly to adapt to different material sizes.

Benefits of technology

It effectively avoids or reduces scratches and dents on the surface of materials after stamping, improves the quality of stamped products, and can adapt to the stamping requirements of materials of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor rotor punching sheet stamping device, and relates to the technical field of stamping devices. Comprising a punching machine body; the punching cylinder is arranged at the top of the punching machine body; the adjusting base assembly and the punching machine head are sequentially arranged on a piston rod of the punching air cylinder from top to bottom. The number of the material pressing roller assemblies is two. The adjusting base assembly comprises an adjusting shaft coaxially arranged on a piston rod of the punching air cylinder, and the outer portion of the adjusting shaft is movably connected with an adjusting base through a connecting bolt. The pressing roller assembly comprises a rotating disc rotationally arranged on the side wall of the adjusting base through a rotating shaft with a torsional spring, an arc-shaped limiting groove is formed in the peripheral wall of the rotating disc, a limiting rod assembly movably connected with the arc-shaped limiting groove is arranged on the side wall of the adjusting base, a rotating rod is obliquely arranged on the rotating disc, and a pressing roller is arranged at the end, away from the rotating disc, of the rotating rod. The pressing roller is located below the punching machine head. The metal filing cleaning device has the advantages that the metal filing can be cleaned before stamping, the quality after stamping is improved, and the like.
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Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically to a stamping device for motor rotor laminations. Background Technology

[0002] In the existing technology, when stamping motor rotor laminations, the material needs to be placed manually on the stamping platform surface. During stamping, metal shavings may sometimes stick to the material. If these are not removed before stamping, the surface of the material after stamping will have defects such as scratches and pits, which will ultimately affect the pass rate of the finished product. Utility Model Content

[0003] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a motor rotor lamination stamping device, which has advantages such as the ability to clean metal shavings before stamping, thereby improving the quality of the rotor laminations after stamping.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a motor rotor lamination stamping device, comprising:

[0005] The body of the stamping press;

[0006] The stamping cylinder is located on the top of the stamping machine body;

[0007] Adjustment seat assembly;

[0008] The stamping head, the adjusting seat assembly, and the stamping head are arranged sequentially from top to bottom on the piston rod of the stamping cylinder;

[0009] The pressure roller assembly consists of two components, which are symmetrically arranged on both sides of the adjusting seat assembly.

[0010] The adjusting seat assembly includes an adjusting shaft coaxially mounted on the piston rod of the stamping cylinder, and an adjusting seat is movably connected to the outside of the adjusting shaft by connecting bolts. Two pressure roller assemblies are symmetrically arranged on two opposing outer side walls of the adjusting seat.

[0011] The pressure roller assembly includes a turntable rotatably mounted on the side wall of the adjusting seat via a rotating shaft with a torsion spring. An arc-shaped limiting groove is provided on the outer peripheral wall of the turntable. A limiting rod assembly that is movably connected to the arc-shaped limiting groove is provided on the side wall of the adjusting seat. A rotating rod is inclinedly mounted on the turntable. A pressure roller is provided at the end of the rotating rod away from the turntable, and the pressure roller is located below the stamping head.

[0012] Preferably, the outer wall of the adjusting shaft is provided with a plurality of internal threaded holes spaced apart along the axial direction. The connecting bolts can be movably connected through the adjusting seat and threaded to the corresponding internal threaded holes. The connecting bolts can be connected to the internal threaded holes at different positions, which can ultimately realize the adjustment of the height position of the pressure roller assembly.

[0013] Preferably, the limiting rod assembly includes:

[0014] A connecting seat is provided on the side wall of the adjusting seat;

[0015] Adjusting bolts are connected to the connecting seat;

[0016] The limiting rod is movably sleeved outside the adjusting bolt, and the end of the limiting rod away from the adjusting bolt is movably set in the arc-shaped limiting groove. When the end of the limiting rod away from the adjusting bolt is inserted into the arc-shaped limiting groove, the rotation angle of the rotating rod can be limited.

[0017] Preferably, the arc-shaped limiting groove is concentric with the turntable, which facilitates the insertion of the end of the limiting rod away from the adjusting bolt into the arc-shaped limiting groove, thereby limiting the rotation angle of the rotating rod.

[0018] Preferably, the included angle between the two rotating rods is between 15 and 20 degrees, so that when the two rotating rods come into contact with the material, they can move in opposite directions as pushed by the stamping cylinder, thereby keeping the material in a flat position.

[0019] Preferably, the press head is located directly above the two pressure rollers. When the two rotating rods come into contact with the material and move in opposite directions, the press head can complete the stamping operation on the material.

[0020] Preferably, the outer peripheral wall of the pressure roller is provided with a plurality of annular grooves at intervals along the axial direction, and an annular magnet is sleeved on the inner peripheral wall of the annular groove. When the two rotating rods come into contact with the material and move in opposite directions, they can adsorb the metal chips adhering to the material, thereby avoiding or reducing defects such as scratches and pits on the surface of the material after stamping.

[0021] The beneficial effects of this utility model are as follows: 1. By setting the pressure roller assembly, metal shavings adhering to the material can be adsorbed before stamping, and then the stamping operation is completed by the stamping head, thereby avoiding or reducing defects such as scratches and pits on the surface of the material after stamping, and improving the quality of the finished product after stamping.

[0022] 2. The adjustable seat assembly can be adjusted according to the different sizes of materials: this allows the distance between the stamping head and the two pressure rollers to increase (or decrease), so that after the two pressure rollers move a greater (or less) distance away, the pressure roller assembly can adsorb the metal shavings adhering to the material before stamping, thereby avoiding or reducing defects such as scratches and pits on the surface of the material after stamping, and improving the quality of the finished product after stamping. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a motor rotor lamination stamping device provided in an embodiment of the present utility model.

[0025] Figure 2 This is a schematic diagram of the adjusting seat assembly of a motor rotor lamination stamping device provided in an embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the connection structure of the pressing roller assembly and the limiting rod assembly of a motor rotor lamination stamping device provided in an embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of the position of the arc-shaped limiting groove of a motor rotor lamination stamping device provided for an embodiment of this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Press body; 2. Press cylinder; 3. Adjusting seat assembly; 31. Adjusting shaft; 311. Internal threaded hole; 32. Connecting bolt; 33. Adjusting seat; 4. Press head; 5. Pressure roller assembly; 51. Rotary shaft with torsion spring; 52. Turntable; 53. Arc-shaped limiting groove; 54. Rotating rod; 55. Pressure roller; 551. Circular groove; 552. Circular magnet; 6. Limiting rod assembly; 61. Connecting seat; 62. Adjusting bolt; 63. Limiting rod. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] like Figures 1 to 3As shown, this utility model provides a motor rotor lamination stamping device, including a stamping machine body 1; a stamping cylinder 2 is disposed on the top of the stamping machine body 1; an adjusting seat assembly 3 and a stamping head 4 are disposed sequentially from top to bottom on the piston rod of the stamping cylinder 2; two pressure roller assemblies 5 are provided, and the two pressure roller assemblies 5 are symmetrically disposed on both sides of the adjusting seat assembly 3; the pressure roller assembly 5 includes a turntable 52 rotatably disposed on the side wall of the adjusting seat 33 via a rotating shaft 51 with a torsion spring, an arc-shaped limiting groove 53 is provided on the outer peripheral wall of the turntable 52, a limiting rod assembly 6 is provided on the side wall of the adjusting seat 33 and is movably connected to the arc-shaped limiting groove 53, a rotating rod 54 is inclinedly disposed on the turntable 52, and a pressure roller 55 is disposed at the end of the rotating rod 54 away from the turntable 52, and the pressure roller 55 is located below the stamping head 4.

[0032] Before stamping the material, the material is placed in the stamping die on the stamping machine body 1. The stamping cylinder 2 is started, which drives the adjusting seat assembly 3 and the stamping head 4 to move towards the material at the same time. After the two pressure roller assemblies 5 (two pressure rollers 55) come into contact with the material, as the stamping cylinder 2 continues to push, the two pressure roller assemblies 5 (two pressure rollers 55) can move in opposite directions, which can adsorb the metal chips adhering to the material, thereby avoiding or reducing defects such as scratches and pits on the surface of the material after stamping. At the same time, it also helps to keep the material stable on the stamping machine body 1. When the two pressure roller assemblies 5 (two pressure rollers 55) move in opposite directions, the stamping head 4 continues to move towards the material at the same time, and finally comes into contact with the material to complete the stamping operation.

[0033] The adjusting seat assembly 3 includes an adjusting shaft 31 coaxially mounted on the piston rod of the stamping cylinder 2. An adjusting seat 33 is movably connected to the outside of the adjusting shaft 31 via connecting bolts 32. Two pressure roller assemblies 5 (two pressure rollers 55) are symmetrically arranged on two opposing outer side walls of the adjusting seat 33. Multiple internal threaded holes 311 are spaced apart along the axial direction on the outer wall of the adjusting shaft 31. The connecting bolts 32 movably pass through the adjusting seat 33 and are threadedly connected to the corresponding internal threaded holes 311. The connecting bolts 32 can also be connected to the internal threaded holes 311 at different positions, ultimately achieving adjustment of the height position of the pressure roller assembly 5 (pressure rollers 55) (i.e., adjusting the distance between the stamping head 4 and the two pressure rollers 55). Adjustments can be made according to the size of the material: When stamping a large material, the connecting bolt 32 can be connected to the internal threaded hole 311 at the end away from the stamping cylinder 2. This increases the distance between the stamping head 4 and the two pressure rollers 55, meaning that after the two pressure rollers 55 move a greater distance away from each other, the stamping cylinder 2 can contact the material to complete the stamping operation. When stamping a small material, the connecting bolt 32 can be connected to the internal threaded hole 311 at the end near the stamping cylinder 2. This increases the distance between the stamping head 4 and the two pressure rollers 55, meaning that after the two pressure rollers 55 move a smaller distance away from each other, the stamping cylinder 2 can contact the material to complete the stamping operation.

[0034] When it is necessary to limit the rotation angle of turntable 52 (i.e., the angle of rotation of the two rotating rods 54 in opposite directions), the limiting rod assembly 6 can be inserted into the arc-shaped limiting groove 53, thereby limiting the rotation range of turntable 52.

[0035] Example 2

[0036] Based on Example 1, such as Figure 1 , Figures 3 to 4 As shown, the limiting rod assembly 6 includes a connecting seat 61, which is disposed on the side wall of the adjusting seat 33; an adjusting bolt 62 is connected to the connecting seat 61; a limiting rod 63 is movably sleeved outside the adjusting bolt 62, and the end of the limiting rod 63 away from the adjusting bolt 62 is movably disposed in the arc-shaped limiting groove 53; the arc-shaped limiting groove 53 and the turntable 52 are concentric; when it is necessary to limit the rotation angle of the turntable 52 (i.e., the angle of rotation of the two rotating rods 54 in opposite directions), the end of the limiting rod 63 away from the adjusting bolt 62 can be inserted into the arc-shaped limiting groove 53, and then the adjusting bolt 62 can be tightened to fix the limiting rod 63; when the turntable 52 rotates, when the arc-shaped end in the arc-shaped limiting groove 53 abuts against the limiting rod 63, the turntable 52 cannot continue to rotate, thereby achieving the effect of limiting the rotation of the turntable 52.

[0037] The included angle between the two rotating rods 54 is between 15 and 20 degrees, which makes it easy for the two rotating rods 54 to move in opposite directions when they come into contact with the material, as pushed by the stamping cylinder 2. This keeps the material in a flat position and also helps to keep the distance between the ends of the two limiting rods 63 and the adjusting bolt 62 smaller (while not affecting the rotation of the two rotating rods 54 in opposite directions), thereby improving the adsorption effect on metal shavings adhering to the material.

[0038] The press head 4 is located directly above the two pressure rollers 55, which allows the press head 4 to extend from between the two rotating rods 54 to complete the stamping operation on the material after the two rotating rods 54 come into contact with the material and move in opposite directions, as the press cylinder 2 continues to push.

[0039] Example 3

[0040] Based on Example 1, such as Figure 1 , Figures 3 to 4 As shown, multiple annular grooves 551 are spaced along the axial direction on the outer peripheral wall of the pressure roller 55, and annular magnets 552 are sleeved on the inner peripheral wall of the annular grooves 551. The stamping cylinder 2 pushes the pressure roller assembly 5 to move towards the material placed on the stamping machine body 1. When the pressure roller 55 comes into contact with the material, as the stamping cylinder 2 continues to push, both rotating rods 54 rotate around the rotating shaft 51 with torsion springs as the axis (that is, the two rotating rods 54 rotate in opposite directions when in contact with the material). At the same time, the pressure roller 55 rolls on the material, so that the metal chips adhering to the material can be adsorbed by the annular magnets 552 in the annular grooves 551, thereby avoiding or reducing defects such as scratches and pits on the surface of the material after stamping. Since the two rotating rods 54 rotate synchronously around the rotating shaft 51 with torsion springs as the axis, it is also beneficial for the material to remain stable on the stamping machine body 1.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A stamping device for motor rotor laminations, characterized in that, include: The body of the stamping press (1); The stamping cylinder (2) is located on the top of the stamping machine body (1); Adjustment seat assembly (3); The stamping head (4), the adjusting seat assembly (3) and the stamping head (4) are arranged sequentially from top to bottom on the piston rod of the stamping cylinder (2); There are two pressure roller assemblies (5), and the two pressure roller assemblies (5) are symmetrically arranged on both sides of the adjusting seat assembly (3); Among them, the adjusting seat assembly (3) includes an adjusting shaft (31) coaxially arranged on the piston rod of the stamping cylinder (2), and an adjusting seat (33) is movably connected to the outside of the adjusting shaft (31) by a connecting bolt (32). Two pressure roller assemblies (5) are symmetrically arranged on the two opposite outer side walls of the adjusting seat (33). The pressure roller assembly (5) includes a turntable (52) rotatably mounted on the side wall of the adjusting seat (33) via a rotating shaft (51) with a torsion spring. An arc-shaped limiting groove (53) is provided on the outer peripheral wall of the turntable (52). A limiting rod assembly (6) movably connected to the arc-shaped limiting groove (53) is provided on the side wall of the adjusting seat (33). A rotating rod (54) is inclinedly mounted on the turntable (52). A pressure roller (55) is provided at the end of the rotating rod (54) away from the turntable (52), and the pressure roller (55) is located below the stamping head (4).

2. The motor rotor lamination stamping device as described in claim 1, characterized in that, Multiple internal threaded holes (311) are provided at intervals along the axial direction on the outer wall of the adjusting shaft (31). The connecting bolt (32) passes through the adjusting seat (33) and is threadedly connected to the corresponding internal threaded hole (311).

3. The motor rotor lamination stamping device as described in claim 1, characterized in that, The limit rod assembly (6) includes: Connecting seat (61) is provided on the side wall of adjusting seat (33); Adjusting bolt (62) is connected to connecting seat (61); The limiting rod (63) is movably sleeved outside the adjusting bolt (62), and the end of the limiting rod (63) away from the adjusting bolt (62) is movably set in the arc-shaped limiting groove (53).

4. The motor rotor lamination stamping device as described in claim 1, characterized in that, The arc-shaped limiting groove (53) and the turntable (52) share the same center.

5. The motor rotor lamination stamping device as described in claim 1, characterized in that, The angle between the two rotating rods (54) is between 15 and 20 degrees.

6. The motor rotor lamination stamping device as described in claim 1, characterized in that, The press head (4) is located directly above the two pressure rollers (55).

7. The motor rotor lamination stamping device as described in claim 1, characterized in that, Multiple annular grooves (551) are spaced apart along the axial direction on the outer peripheral wall of the pressure roller (55), and annular magnets (552) are sleeved on the inner peripheral wall of the annular grooves (551).