Machining forming process of motor end cover

Abstract

The invention discloses a machining and forming process of a motor end cover. The machining and forming process comprises the following steps: 1.1, selecting materials; step 1.2, blanking processing is carried out; 1.3, drawing machining is carried out; step 1.4, carrying out rolling processing; step 1.5, punching processing is carried out; step 1.6, processing a positioning hole; step 1.7, processing the bottom plate; and 1.8, inspecting and warehousing. According to the machining forming process of the motor end cover, the metal plate is directly used for machining, and the size can be adjusted in the machining process according to the actual situation.

Description

Technical Field

[0001] The invention relates to the technical field of motor end covers, in particular to a processing and forming process of a motor end cover. Background Art

[0002] At present, the existing motor end covers on the market are all made of cast aluminum. As we all know, the mining and refining process of bauxite is relatively complicated and the resources are limited, which makes the raw material cost of aluminum relatively high. In addition, although the motor end covers made of cast aluminum meet the existing actual assembly and use needs, the cast aluminum models used are one-to-one configurations, which consume a large cost and the overall matching degree is not high. In addition, the post-processing requires secondary processing, and the size cannot be adjusted according to the actual situation, which brings great inconvenience to the overall production and processing. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to overcome the deficiencies in the prior art, a processing and forming process for a motor end cover is provided, which directly performs mechanical processing on a metal sheet and can adjust the size during the mechanical processing according to actual conditions.

[0004] The technical solution adopted by the present invention is: a processing and forming process of a motor end cover, comprising the following steps:

[0005] Step 1.1, material selection: choose high-quality metal sheets;

[0006] Step 1.2, blanking processing: placing the metal sheet on the stamping equipment, and using the stamping equipment to stamp the metal sheet into a flat circular plate;

[0007] Step 1.3: Drawing: Place a flat circular plate in a drawing die, and draw the circular plate through a punch in the drawing die to obtain a cylindrical structure with an open upper end and a closed lower end;

[0008] Step 1.4, rolling processing: placing the drawn cylindrical structure on a rolling die, and using a roller to squeeze the inner wall of the middle of the cylindrical structure outward, so that the cylindrical structure is transformed into a first hollow structure with a cylindrical upper portion, a flying saucer-shaped middle portion, and a cylindrical lower portion;

[0009] Step 1.5, stamping process: fix the first hollow structure after the rolling process on the first stamping die, and use the first stamping die to stamp the flying saucer-shaped middle part of the first hollow structure, so that the first hollow structure is transformed into a second hollow structure with a cylindrical upper part, a flat ring in the middle, and a cylindrical lower part;

[0010] Step 1.6, positioning hole processing: fix the second hollow structure after stamping by a fixture, and then use a drilling device to process positioning holes on the flat annular part of the second hollow structure, so that the second hollow structure is transformed into a third hollow structure;

[0011] Step 1.7, bottom plate processing: placing the third hollow structure after the positioning hole processing on the second stamping die, and performing the stamping processing of the bearing hole and the stamping processing of the reinforcing rib on the lower end surface of the lower cylindrical part of the third hollow structure by the second stamping die to obtain the finished product to be stored;

[0012] Step 1.8, Inspection and warehousing: Inspect the appearance, surface quality, size and shape of the finished products to be stored. When they pass the inspection, they will be transferred to the warehouse.

[0013] More specifically, in step 1.1, the metal sheet is a galvanized sheet or a stainless steel sheet.

[0014] More specifically, in step 1.1, the thickness of the metal sheet is 1.5 to 2.5 mm.

[0015] More specifically, the inner contour of the die of the rolling die matches the outer contour of the second hollow structure, and the middle of the cylindrical structure is squeezed by the roller so that the outer wall of the middle of the cylindrical structure fits the inner contour of the die of the rolling die.

[0016] To be more specific, the first stamping die includes an upper pressing plate and a lower pressing plate, the upper pressing plate is opposite to the upper inclined conical surface of the flying saucer-shaped middle part of the first hollow structure, and the lower pressing plate is opposite to the lower inclined conical surface of the flying saucer-shaped middle part of the first hollow structure, the upper pressing plate moves vertically downward, and the lower pressing plate moves vertically upward, and the pressure of the instantaneous movement of the upper pressing plate and the lower pressing plate is used to punch the flying saucer-shaped middle part into a flat circular ring structure.

[0017] More specifically, the second hollow structure includes an upper structure, an intermediate structure and a lower structure, the maximum diameter of the upper structure is the same as the maximum diameter of the lower structure, and the maximum diameter of the intermediate structure is greater than the maximum diameter of the upper structure.

[0018] More specifically, in step 1.6, there are a plurality of positioning holes in the third hollow structure, and the plurality of positioning holes are evenly arranged along the circumferential direction of the flat annular portion.

[0019] To be more specific, in step 1.7, the bearing hole is located at the center of the lower end surface of the lower cylindrical portion of the third hollow structure, and there are a plurality of reinforcing ribs on the third hollow structure, and the plurality of reinforcing ribs are evenly arranged along the circumferential direction of the lower end surface of the lower cylindrical portion of the third hollow structure.

[0020] The beneficial effects of the present invention are as follows: the processing and forming process of the motor end cover of the present invention directly performs mechanical processing using metal plates, and the size can be adjusted during the mechanical processing according to actual conditions, thereby improving the flexibility and versatility of the overall production, reducing the overall production cost, and improving economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a flow chart of Embodiment 1 of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of a circular plate;

[0023] Figure 3 It is a schematic diagram of a cylindrical tube structure;

[0024] Figure 4 is a schematic diagram of a first hollow structure;

[0025] Figure 5 is a schematic diagram of a second hollow structure;

[0026] Figure 6 is a schematic diagram of the third hollow structure;

[0027] Figure 7 It is a schematic diagram of the structure of the finished product to be put into storage;

[0028] Figure 8 This is a process diagram of roller pressing die. Figure 1 ;

[0029] Fig. 9 This is a process diagram of roller pressing die. Figure 2 ;

[0030] Fig.10 This is the process diagram of the first stamping die Figure 1 ;

[0031] Fig.11 This is the process diagram of the first stamping die Figure 2 ;

[0032] Fig.12 is a flow chart of Embodiment 2 of the present invention;

[0033] Fig.13 It is a schematic diagram of a trumpet-shaped structure.

[0034] The numbers in the figure are: 1. circular plate; 2. cylindrical structure; 3. first hollow structure; 4. second hollow structure; 5. third hollow structure; 6. finished product to be stored; 7. trumpet-shaped structure; a. rolling mold; b. roller; c. upper pressure plate; d. lower pressure plate. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below. The embodiments are implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operation processes are given, but the protection scope of the present invention is not limited to the following embodiments.

[0036] Example 1

[0037] See Figure 1 The present invention provides a processing and forming process for a motor end cover, comprising the following steps:

[0038] Step 1.1, material selection: select high-quality metal plates; the metal plates are galvanized plates. The thickness of the metal plates is 1.5mm.

[0039] Step 1.2, blanking processing: placing the metal sheet on the stamping equipment, and using the stamping equipment to stamp the metal sheet into a flat circular plate 1, such as Figure 2 As shown;

[0040] Step 1.3: Drawing: Place the flat circular plate 1 in the drawing die, and use the punch in the drawing die to draw the circular plate 1 to obtain a cylindrical structure 2 with an open upper end and a closed lower end. Figure 3 As shown;

[0041] Step 1.4, rolling process: the cylindrical structure 2 after deep drawing is arranged on the rolling die a, and the inner wall of the middle part of the cylindrical structure 2 is squeezed outward by roller b, so that the cylindrical structure 2 is transformed into a first hollow structure 3 with a cylindrical upper part, a flying saucer shape in the middle, and a cylindrical lower part, as shown in FIG. Figure 4 As shown; wherein, the inner contour of the concave mold of the rolling mold a matches the outer contour of the second hollow structure, and the middle of the cylindrical structure 2 is squeezed by the roller b, so that the outer wall of the middle of the cylindrical structure 2 fits the inner contour of the concave mold of the rolling mold a, as shown Figure 8 and Fig. 9 shown.

[0042] Step 1.5, stamping process: fix the first hollow structure 3 after rolling process on the first stamping die, and use the first stamping die to stamp the flying saucer-shaped middle part of the first hollow structure 3, so that the first hollow structure 3 is transformed into a second hollow structure 4 with a cylindrical upper part, a flat ring in the middle, and a cylindrical lower part, as shown in FIG. Figure 5As shown; wherein, the first stamping die includes an upper pressing plate c and a lower pressing plate d, the upper pressing plate c is directly opposite to the upper inclined conical surface of the flying saucer-shaped middle part of the first hollow structure 3, and the lower pressing plate d is directly opposite to the lower inclined conical surface of the flying saucer-shaped middle part of the first hollow structure 3, the upper pressing plate c moves vertically downward, and the lower pressing plate d moves vertically upward, and the pressure of the instantaneous movement of the upper pressing plate c and the lower pressing plate d is used to stamp the flying saucer-shaped middle part into a flat annular structure, such as Fig.10 and Fig.11 The second hollow structure 4 includes an upper structure, an intermediate structure and a lower structure. The maximum diameter of the upper structure is the same as the maximum diameter of the lower structure, and the maximum diameter of the intermediate structure is larger than the maximum diameter of the upper structure. The height of the upper structure is larger than the height of the intermediate structure, and the height of the lower structure is larger than the height of the upper structure.

[0043] Step 1.6, positioning hole processing: fix the second hollow structure 4 after stamping by a fixture, and then use a drilling device to process the positioning hole on the flat annular part of the second hollow structure 4, so that the second hollow structure 4 is transformed into a third hollow structure 5, such as Figure 6 As shown; wherein, there are several positioning holes in the third hollow structure 5, and the several positioning holes are evenly arranged along the circumferential direction of the flat annular portion.

[0044] Step 1.7, bottom plate processing: the third hollow structure 5 after the positioning hole processing is placed on the second stamping die, and the lower end surface of the lower cylindrical part of the third hollow structure 5 is stamped with the bearing hole and the reinforcing rib by the second stamping die to obtain the finished product 6 to be stored. Figure 7 As shown; wherein, the bearing hole is located at the center of the lower end surface of the lower cylindrical part of the third hollow structure 5, and there are several reinforcing ribs on the third hollow structure 5, and the several reinforcing ribs are evenly arranged along the circumferential direction of the lower end surface of the lower cylindrical part of the third hollow structure 5.

[0045] Step 1.8, inspection and warehousing: Inspect the appearance, surface quality, size and shape of the finished product 6 to be stored. When the inspection is qualified, the finished product will be transferred to the warehouse.

[0046] Example 2

[0047] See Fig.12 The present invention provides a processing and forming process for a motor end cover, comprising the following steps:

[0048] Step 2.1, material selection: select high-quality metal plates; the metal plates are stainless steel plates. The thickness of the metal plates is 2.5mm.

[0049] Step 2.2, blanking processing: placing the metal sheet on the stamping equipment, and using the stamping equipment to stamp the metal sheet into a flat circular plate 1, such as Figure 2 As shown;

[0050] Step 2.3: Drawing: Place the flat circular plate 1 in the drawing die, and use the punch in the drawing die to draw the circular plate 1 to obtain a cylindrical structure 2 with an open upper end and a closed lower end, such as Figure 3 As shown;

[0051] Step 2.4, spinning: fix the cylindrical structure 2 after deep drawing on the spinning equipment for spinning operation, and after spinning, fold the open end of the cylindrical structure 2 outward to form an outer flange to obtain a trumpet-shaped structure 7 with a cylindrical lower part and a truncated cone upper part, as shown in FIG. Fig.13 As shown;

[0052] Step 2.5, folding: fix the trumpet-shaped structure 7 after spinning on the folding mold, and perform inward and vertical folding on a part of the outer flange, so that the trumpet-shaped structure 7 is transformed into a first hollow structure 3 with a cylindrical upper portion, a flying saucer shape in the middle, and a cylindrical lower portion, as shown in FIG. Figure 4 As shown;

[0053] Step 2.6: Stamping: Fix the first hollow structure 3 after the folding process on the first stamping die, and use the first stamping die to stamp the flying saucer-shaped middle part of the first hollow structure 3, so that the first hollow structure 3 is transformed into a second hollow structure 4 with a cylindrical upper part, a flat ring in the middle, and a cylindrical lower part. Figure 5 As shown; wherein, the first stamping die includes an upper pressing plate c and a lower pressing plate d, the upper pressing plate c is directly opposite to the upper inclined conical surface of the flying saucer-shaped middle part of the first hollow structure 3, and the lower pressing plate d is directly opposite to the lower inclined conical surface of the flying saucer-shaped middle part of the first hollow structure 3, the upper pressing plate c moves vertically downward, and the lower pressing plate d moves vertically upward, and the pressure of the instantaneous movement of the upper pressing plate c and the lower pressing plate d is used to stamp the flying saucer-shaped middle part into a flat annular structure, such as Fig.10 and Fig.11 The second hollow structure 4 includes an upper structure, an intermediate structure and a lower structure. The maximum diameter of the upper structure is the same as the maximum diameter of the lower structure, and the maximum diameter of the intermediate structure is larger than the maximum diameter of the upper structure. The height of the upper structure is larger than the height of the intermediate structure, and the height of the lower structure is larger than the height of the upper structure.

[0054] Step 2.7, positioning hole processing: fix the second hollow structure 4 after stamping by a fixture, and then use a drilling device to process positioning holes on the flat annular part of the second hollow structure 4, so that the second hollow structure 4 is transformed into a third hollow structure 5, such as Figure 6 As shown; wherein, there are several positioning holes in the third hollow structure 5, and the several positioning holes are evenly arranged along the circumferential direction of the flat annular portion.

[0055] Step 2.8, bottom plate processing: the third hollow structure 5 after the positioning hole processing is placed on the second stamping die, and the lower end surface of the lower cylindrical part of the third hollow structure 5 is stamped with the bearing hole and the reinforcing rib by the second stamping die to obtain the finished product 6 to be stored. Figure 7 As shown; wherein, the bearing hole is located at the center of the lower end surface of the lower cylindrical part of the third hollow structure 5, and there are several reinforcing ribs on the third hollow structure 5, and the several reinforcing ribs are evenly arranged along the circumferential direction of the lower end surface of the lower cylindrical part of the third hollow structure 5.

[0056] Step 2.9, inspection and warehousing: Inspect the appearance, surface quality, size and shape of the finished product 6 to be stored. When the inspection is qualified, the finished product will be transferred to the warehouse.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A processing and forming process for a motor end cover, characterized in that: The following steps are involved: Step 1.1, material selection: choose high-quality metal sheets; Step 1.2, blanking processing: placing the metal sheet on a stamping device, and using the stamping device to stamp the metal sheet into a flat circular plate (1); Step 1.3: drawing: placing a flat circular plate (1) in a drawing die, and drawing the circular plate (1) by a punch in the drawing die to obtain a cylindrical structure (2) with an open upper end and a closed lower end; Step 1.4, rolling processing: placing the drawn cylindrical structure (2) on a rolling die (a), and using a roller (b) to squeeze the inner wall of the middle portion of the cylindrical structure (2) outward, so that the cylindrical structure (2) is transformed into a first hollow structure (3) with a cylindrical upper portion, a flying saucer-shaped middle portion, and a cylindrical lower portion; Step 1.5, stamping process: fixing the first hollow structure (3) after the rolling process on the first stamping die, and stamping the flying saucer-shaped middle part of the first hollow structure (3) by the first stamping die, so that the first hollow structure (3) is transformed into a second hollow structure (4) with a cylindrical upper part, a flat ring in the middle, and a cylindrical lower part; Step 1.6, positioning hole processing: the second hollow structure (4) after the stamping process is fixed by a fixture, and then the positioning hole is processed on the flat annular part of the second hollow structure (4) by a drilling device, so that the second hollow structure (4) is transformed into a third hollow structure (5); Step 1.7, bottom plate processing: placing the third hollow structure (5) after the positioning hole processing on the second stamping die, and using the second stamping die to perform the bearing hole stamping processing and the reinforcing rib stamping processing on the lower end surface of the lower cylindrical part of the third hollow structure (5), to obtain the finished product to be stored (6); Step 1.8, Inspection and warehousing: The finished products (6) to be stored are inspected for appearance, surface quality, size and shape. When they pass the inspection, they are transferred to the warehouse.

2. The processing and forming process of a motor end cover according to claim 1 is characterized in that: In step 1.1, the metal sheet is a galvanized sheet or a stainless steel sheet.

3. The processing and forming process of a motor end cover according to claim 1 is characterized in that: In the step 1.1, the thickness of the metal sheet is 1.5 to 2.5 mm.

4. The processing and forming process of a motor end cover according to claim 1 is characterized in that: The inner contour of the die of the rolling mold (a) matches the outer contour of the second hollow structure (4), and the middle part of the cylindrical structure (2) is squeezed by the roller (b), so that the outer wall of the middle part of the cylindrical structure (2) fits the inner contour of the die of the rolling mold (a).

5. The processing and forming process of a motor end cover according to claim 1 is characterized in that: The first stamping die comprises an upper pressing plate (c) and a lower pressing plate (d), wherein the upper pressing plate (c) is opposite to the upper inclined conical surface of the flying saucer-shaped middle part of the first hollow structure (3), and the lower pressing plate (d) is opposite to the lower inclined conical surface of the flying saucer-shaped middle part of the first hollow structure (3). The upper pressing plate (c) moves vertically downward, and the lower pressing plate (d) moves vertically upward, and the pressure of the instantaneous movement of the upper pressing plate (c) and the lower pressing plate (d) is used to stamp the flying saucer-shaped middle part into a flat circular ring structure.

6. The processing and forming process of a motor end cover according to claim 1 is characterized in that: The second hollow structure (4) comprises an upper structure, an intermediate structure and a lower structure, the maximum diameter of the upper structure is the same as the maximum diameter of the lower structure, and the maximum diameter of the intermediate structure is greater than the maximum diameter of the upper structure.

7. The processing and forming process of a motor end cover according to claim 1 is characterized in that: In the step 1.6, there are a plurality of positioning holes in the third hollow structure (5), and the plurality of positioning holes are evenly arranged along the circumferential direction of the flat annular portion.

8. The process for forming a motor end cover according to claim 1, characterized in that: In step 1.7, the bearing hole is located at the center of the lower end surface of the lower cylindrical portion of the third hollow structure (5), and there are a plurality of reinforcing ribs on the third hollow structure (5), and the plurality of reinforcing ribs are evenly arranged along the circumferential direction of the lower end surface of the lower cylindrical portion of the third hollow structure (5).

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