Machining die and machining equipment applied to transmission shaft

Abstract

The utility model discloses a machining die and machining equipment applied to a transmission shaft, which comprises an upper tooth die and a lower tooth die, the first cushion block is fixedly arranged above the upper tooth die; the push pipe is arranged in the first through hole in a sliding manner; the second cushion block is fixedly arranged above the first cushion block; the third cushion block is slidably arranged in the second through hole, the lower portion of the third cushion block abuts against the upper end of the push pipe, and a plurality of ejector rods are fixedly connected to the upper portion of the third cushion block; the fixed seat is fixedly arranged above the second cushion block, an upper punch is fixedly arranged in the fixed seat, and third through holes with the same number as the ejector rods are formed in the fixed seat; a concave hole is formed in the upper end of the upper bottom pad, the lower end of the upper punch fixedly abuts against the lower portion of the upper bottom pad, a fourth through hole is formed in the upper bottom pad, the upper end of the upper bottom pad communicates with the concave hole, and the ejector rod is slidably arranged in the third through hole and the fourth through hole; and the upper ejection block is arranged in the concave hole in a sliding manner, and the upper ejection block is fixedly connected with the ejection rod. The machining efficiency can be improved, and raw materials are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of processing molds, in particular to a processing mold and processing equipment applied to a transmission shaft. Background Art

[0002] Washing machines are common household appliances in life. There are many transmission components in washing machines, and the most common one is the transmission shaft. The transmission shaft generally includes a rod body and a transmission gear. The common processing method of the transmission gear is the forming method. When milling, the workpiece is installed on the dividing head of the milling machine, and a disc-shaped (or finger-shaped) milling cutter with a certain modulus is used to mill the tooth spaces of the gear. After milling one tooth space, indexing is performed, and then the next tooth space is milled. The characteristics of milling teeth are: simple equipment, low tool cost, low productivity, low precision of the processed gear, and more materials are used for the produced transmission gear. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above technical deficiencies, and provide a processing mold and processing equipment applied to a transmission shaft, so as to solve the technical problems of low productivity and large material consumption in the prior art.

[0004] To achieve the above technical purpose, in the first aspect, the technical solution of the utility model provides a processing mold applied to a transmission shaft, including:

[0005] An upper tooth mold, which is a hollow structure. The lower section of the through hole of the upper tooth mold is a round hole, which is used to limit the position of the transmission shaft. The upper section of the through hole of the upper tooth mold is a serrated hole, which is used to stamp and form the transmission shaft;

[0006] A first cushion block, which is fixedly arranged above the upper tooth mold. A first through hole is arranged in the central area of the first cushion block;

[0007] A push tube, which is slidably arranged in the first through hole. In the first state, the lower end of the push tube extends into the serrated hole. In the second state, the lower end of the push tube is flush with the lower end of the first through hole;

[0008] A second cushion block, which is fixedly arranged above the first cushion block. A second through hole is arranged in the central area of the second cushion block;

[0009] A third cushion block, which is slidably arranged in the second through hole. The lower part of the third cushion block abuts against the upper end of the push tube, and a plurality of ejector rods are fixedly connected above the third cushion block;

[0010] A fixed seat, which is fixedly arranged above the second cushion block. An upper punch is fixedly arranged in the fixed seat. The upper punch passes through the push tube, and the lower part of the upper punch extends into the serrated hole. A third through hole with the same number as the ejector rods is arranged on the fixed seat;

[0011] The upper bottom pad is provided with a concave hole at its upper end. The lower end of the upper punch is fixedly abutted against the lower side of the upper bottom pad. The upper bottom pad is provided with fourth through holes that are identical in number and corresponding in position to the third through holes. The upper end of the fourth through hole communicates with the concave hole. The ejector rod is slidably disposed in the third through hole and the fourth through hole.

[0012] The upper top block is slidably disposed in the concave hole, and the upper top block is fixedly connected to the ejector rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model include:

[0014] The processing die applied to the transmission shaft in this application can quickly and reliably process the rough blank of the transmission shaft into a gear, and the inside of the gear is a hollow structure, which can well save raw materials, has fewer processing steps, a high degree of automation, effectively improves the production efficiency, and has good application value.

[0015] According to some embodiments of the present utility model, the processing die applied to the transmission shaft further includes:

[0016] The die outer sleeve is wrapped around the outer circles of the upper tooth die, the first cushion block, the second cushion block, the fixed seat and the upper bottom pad. The die outer sleeve is used to fix the upper tooth die, the first cushion block, the second cushion block, the fixed seat and the upper bottom pad.

[0017] According to some embodiments of the present utility model, the aperture of the second through hole is larger than the aperture of the first through hole.

[0018] According to some embodiments of the present utility model, the number of the ejector rods is three.

[0019] According to some embodiments of the present utility model, the centers of the ejector rods are distributed in an equilateral triangle on the cross-section of the processing die.

[0020] According to some embodiments of the present utility model, the number of the ejector rods is two.

[0021] According to some embodiments of the present utility model, the diameter of the upper end of the upper punch is larger than the diameter of the lower end.

[0022] In a second aspect, the technical solution of the present utility model provides a processing device applied to a transmission shaft, including the processing die applied to the transmission shaft as described in any one of the first aspects.

[0023] According to some embodiments of the present utility model, it further includes: a lower die for fixing the lower end of the transmission shaft.

[0024] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0025] Figure 1 is a schematic structural view of a rough blank of a transmission shaft;

[0026] Figure 2 is a schematic structural view of a finished transmission shaft;

[0027] Figure 3 is a schematic structural view of a processing die applied to a transmission shaft provided by an embodiment of the present utility model;

[0028] Figure 4 is an exploded view of a processing die applied to a transmission shaft provided by an embodiment of the present utility model;

[0029] Figure 5 is a sectional view of a processing die applied to a transmission shaft provided by an embodiment of the present utility model;

[0030] Figure 6 is a schematic structural view of a processing device applied to a transmission shaft provided by an embodiment of the present utility model;

[0031] Figure 7 is Figure 6 a schematic structural view of the processing device applied to the transmission shaft in the use state in

[0032] Description of the reference numerals: 100, transmission shaft; 110, upper tooth die; 111, round hole; 112, serrated hole; 120, first cushion block; 121, first through hole; 130, push tube; 140, second cushion block; 141, second through hole; 150, third cushion block; 151, ejector rod; 160, fixed seat; 161, upper punch; 170, upper bottom pad; 171, concave hole; 180, upper top block; 190, die outer sleeve; 210, lower die. Detailed Embodiment

[0033] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0034] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions from beginning to end. The following is through reference

[0035] The embodiments described with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as a limitation to the present invention.

[0036] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0037] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described, they are only used to distinguish technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0039] The following further elaborates on the embodiments of the present invention with reference to the accompanying drawings.

[0040] Figure 1 is a schematic structural view of a rough blank of a transmission shaft; Figure 2 is a schematic structural view of a finished transmission shaft; Figure 3 is a schematic structural view of a processing die applied to a transmission shaft provided by an embodiment of the present invention; Figure 4 is an exploded view of a processing die applied to a transmission shaft provided by an embodiment of the present invention; Figure 5 is a cross-sectional view of a processing die applied to a transmission shaft provided by an embodiment of the present invention; Figure 6 is a schematic structural view of a processing device applied to a transmission shaft provided by an embodiment of the present invention; Figure 7 is Figure 6 a schematic structural view of the processing device applied to the transmission shaft in the use state in

[0041] In one embodiment, the processing die applied to the transmission shaft 100 includes: an upper tooth die 110, which is a hollow structure. The lower section of the through hole of the upper tooth die 110 is a round hole 111 for defining the position of the transmission shaft 100. The upper section of the through hole of the upper tooth die 110 is a serrated hole 112 for stamping and forming the transmission shaft 100; a first cushion block 120, fixedly arranged above the upper tooth die 110. A first through hole 121 is arranged in the central area of the first cushion block 120; a push tube 130, slidably arranged in the first through hole 121. In the first state, the lower end of the push tube 130 extends into the serrated hole 112. The first state is that the lower end of the push tube 130 abuts against the rough blank of the transmission shaft 100. In the second state, the lower end of the push tube 130 is flush with the lower end of the first through hole 121. In the second state, the gear of the transmission shaft 100 is formed, and the upper end of the gear pushes the push tube 130 upward; a second cushion block 140, fixedly arranged above the first cushion block 120. A second through hole 141 is arranged in the central area of the second cushion block 140; a third cushion block 150, slidably arranged in the second through hole 141. The lower part of the third cushion block 150 abuts against the upper end of the push tube 130. A plurality of ejector rods 151 are fixedly connected above the third cushion block 150; a fixed seat 160, fixedly arranged above the second cushion block 140. An upper punch 161 is fixedly arranged in the fixed seat 160. The upper punch 161 passes through the push tube 130, and the lower part of the upper punch 161 extends into the serrated hole 112. A third through hole with the same number as the ejector rods 151 is arranged on the fixed seat 160; an upper bottom cushion 170, with a concave hole 171 arranged at the upper end. The lower end of the upper punch 161 is fixedly abutted against the lower part of the upper bottom cushion 170. The upper bottom cushion 170 is provided with fourth through holes with the same number and corresponding positions as the third through holes. The upper ends of the fourth through holes communicate with the concave hole 171. The ejector rods 151 are slidably arranged in the third through holes and the fourth through holes; an upper top block 180, slidably arranged in the concave hole 171. The upper top block 180 is fixedly connected with the ejector rods 151.

[0042] The processing process of the transmission shaft 100 using the processing die applied to the transmission shaft 100 is as follows: Place one end of the rough blank of the transmission shaft 100 where the gear needs to be processed in the lower section of the through hole of the upper tooth die 110 of the processing die applied to the transmission shaft 100 for fixation. Use the lower die 210 to fix the lower section of the transmission shaft 100. Apply an extrusion force upward to the transmission shaft 100 through the lower die 210. The lower end of the push tube 130 moves upward under the extrusion force. The function of the push tube 130 is to reduce the deformation of the upper punch 161 due to excessive extrusion force. Since the position of the upper punch 161 is fixed, the upper end of the rough blank of the transmission shaft 100 is extruded to form a gear after being extruded, and holes are extruded in the gear part due to the action of the upper punch 161. The processing die applied to the transmission shaft 100 in this application can quickly and reliably process the rough blank of the transmission shaft 100 into a gear. Moreover, the inside of the gear is a hollow structure, which can well save raw materials, has fewer processing steps, high automation degree, effectively improves the production efficiency, and has good application value.

[0043] Further, it further includes: a die outer sleeve 190, which is disposed to wrap around the outer circles of the upper tooth die 110, the first cushion block 120, the second cushion block 140, the fixed seat 160, and the upper bottom cushion 170. The die outer sleeve 190 is used to fix the upper tooth die 110, the first cushion block 120, the second cushion block 140, the fixed seat 160, and the upper bottom cushion 170, and the die outer sleeve 190 can protect the internal components from external impacts.

[0044] Further, the aperture diameter of the second through hole 141 is larger than that of the first through hole 121. The larger aperture diameter of the second through hole 141 can accommodate a third cushion block 150 with a larger diameter, which is convenient for force application.

[0045] Further, the number of the ejector rods 151 is two or three. When the number of the ejector rods 151 is two, they can be oppositely arranged to receive forces at both ends; when the number of the ejector rods 151 is three, the centers of the ejector rods 151 are distributed in an equilateral triangle on the cross-section of the processing die. The equilateral triangle distribution method has uniform force and good reliability.

[0046] Further, the upper end diameter of the upper punch 161 is larger than the lower end diameter. The upper end of the upper punch 161 abuts against the lower side of the upper bottom cushion 170. The larger upper end diameter of the upper punch 161 enables a larger force-receiving area and smaller pressure when the upper end of the upper punch 161 abuts against the lower side of the upper bottom cushion 170, which can improve the reliability and stability of the device.

[0047] In an embodiment, it includes a processing die for the transmission shaft 100 as described above; a lower die 210, which is used to fix the lower end of the transmission shaft 100.

[0048] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can be made without departing from the gist of the present invention.

[0049] The specific embodiments of the present invention described above do not constitute a limitation to the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention should be included within the protection scope of the claims of the present invention.

Claims

1. A processing mold for a transmission shaft, characterized in that: include: The upper tooth die (110) is a hollow structure, the lower section of the through hole of the upper tooth die (110) is a circular hole (111) for defining the position of the transmission shaft (100), and the upper section of the through hole of the upper tooth die (110) is a sawtooth hole (112) for stamping the transmission shaft (100); A first cushion block (120) is fixedly disposed above the upper tooth mold (110), and a first through hole (121) is disposed in a central area of ​​the first cushion block (120); A push tube (130) is slidably disposed in the first through hole (121); in a first state, the lower end of the push tube (130) extends into the sawtooth hole (112); in a second state, the lower end of the push tube (130) is flush with the lower end of the first through hole (121); A second cushion block (140) is fixedly disposed above the first cushion block (120), and a second through hole (141) is disposed in a central area of ​​the second cushion block (140); A third cushion block (150) is slidably disposed in the second through hole (141), the lower portion of the third cushion block (150) abuts against the upper end of the push tube (130), and a plurality of push rods (151) are fixedly connected to the upper portion of the third cushion block (150); A fixed seat (160) is fixedly arranged above the second cushion block (140), an upper punch (161) is fixedly arranged in the fixed seat (160), the upper punch (161) is penetrated in the push tube (130), the lower part of the upper punch (161) extends into the serrated hole (112), and the fixed seat (160) is provided with third through holes of the same number as the push rod (151); an upper base pad (170) is provided with a concave hole (171) at the upper end, the lower end of the upper punch (161) is fixedly abutted against the lower part of the upper base pad (170), and the upper base pad (170) is provided with fourth through holes of the same number and corresponding position as the third through holes, the upper end of the fourth through hole is connected to the concave hole (171), and the push rod (151) can be slidably arranged in the third through hole and the fourth through hole; An upper push block (180) is slidably disposed in the concave hole (171), and the upper push block (180) is fixedly connected to the push rod (151).

2. The processing mold for a transmission shaft according to claim 1, characterized in that: Also includes: The die sleeve (190) is wrapped around the outer ring of the upper tooth die (110), the first cushion block (120), the second cushion block (140), the fixing seat (160) and the upper bottom pad (170), and the die sleeve (190) is used to fix the upper tooth die (110), the first cushion block (120), the second cushion block (140), the fixing seat (160) and the upper bottom pad (170).

3. The processing mold for a transmission shaft according to claim 1, characterized in that: The aperture of the second through hole (141) is larger than the aperture of the first through hole (121).

4. The processing mold for a transmission shaft according to claim 1, characterized in that: The number of the top rods (151) is three.

5. The processing mold for a transmission shaft according to claim 4, characterized in that: On the cross section of the processing mold, the centers of the ejector pins (151) are distributed in the form of an equilateral triangle.

6. The processing mold for a transmission shaft according to claim 1, characterized in that: The number of the push rods (151) is two.

7. The processing mold for a transmission shaft according to claim 1, characterized in that: The upper end diameter of the upper punch (161) is larger than the lower end diameter.

8. A processing device applied to a transmission shaft, characterized in that: It comprises a processing die applied to a transmission shaft as claimed in any one of claims 1 to 7.

9. The processing equipment for a transmission shaft according to claim 8, characterized in that: Also includes: The lower mold (210) is used to fix the lower end of the transmission shaft (100).

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