CN108213161B - Spinning process of two-stage plate belt pulley and special tool for spinning process - Google Patents
Spinning process of two-stage plate belt pulley and special tool for spinning process Download PDFInfo
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- CN108213161B CN108213161B CN201710631870.2A CN201710631870A CN108213161B CN 108213161 B CN108213161 B CN 108213161B CN 201710631870 A CN201710631870 A CN 201710631870A CN 108213161 B CN108213161 B CN 108213161B
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- spinning
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- groove
- wheel
- preformed
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- 238000009987 spinning Methods 0.000 title claims abstract description 123
- 239000000463 material Substances 0.000 claims abstract description 63
- 239000011229 interlayer Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000010953 base metal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
Abstract
A spinning process of a two-stage plate belt pulley and a special tool for the process are disclosed, which comprises (1) enabling a first preformed spinning wheel to correspond to a base material, and extruding the base material in a horizontal motion to outwards bulge the base material along a parabolic groove and a lower groove at the upper part of the preformed spinning wheel; (2) the lower groove on the second preformed spinning roller corresponds to the protruding part on the base material and moves horizontally to spin the base material; (3) and installing the primary forming spinning wheel to enable the lower groove of the primary forming spinning wheel to correspond to the protruding part of the base material, and enabling the primary forming spinning wheel to horizontally move for spinning so as to enable the primary forming of the groove type spinning wheel. (4) And installing a finishing rotary wheel to enable the lower groove of the finishing rotary wheel to correspond to the protruding part of the base material, and performing fine rotary finishing in horizontal movement to achieve the groove shape finally required by the product. The invention solves the problem that the groove shape of the same-diameter two-stage plate spinning belt pulley is not formed, effectively avoids the interlayer at the middle convex part, overcomes the problem that the corresponding inner wall of the middle convex part is concave, and realizes stable spinning production.
Description
Technical Field
The invention relates to a production process of an inner plate-made belt pulley of an automobile engine, in particular to a production process of a plate-made spinning belt pulley with two groups of grooves of the same diameter and a forming spinning wheel used for the process.
Background
At present, a plate spinning belt pulley of an automobile engine is mainly driven by a group of groove types, belt pulleys which are driven by two groups of groove types and have different winding directions are mostly realized by adopting the traditional casting and machining processes, but the cast belt pulley has the defects of high weight, high moment of inertia and high mass production cost, and is an important reason for preventing the automobile from realizing light weight. The weight of the plate spinning pulley is generally only 1/2 of that of the cast pulley steel, and the plate spinning pulley is widely used in automobiles at present to reduce the weight of the whole automobile, which is also the general trend of automobile development. The spinning of the belt pulley is mainly a chipless processing mode, and the prior spinning forming process is easy to cause defects of non-forming of a groove type, interlayer at the middle convex part, concave at the middle convex part corresponding to the inner wall and the like in the spinning forming process of manufacturing the same-diameter two-stage plate-made belt pulley, so that failure is caused, and particularly the number of grooves is large, and the precedent of the production of the same-diameter two-stage plate-made spinning belt pulley is not successfully realized in China.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a spinning process of a two-stage plate belt pulley with the same diameter, which solves the problems of non-forming of a groove shape and layering of a middle protruding part and effectively ensures the product quality.
The invention also provides a special tool for the spinning process of the two-stage plate belt pulley.
The technical scheme adopted for solving the technical problems is as follows: the method comprises the following steps:
(1) the forming spinning roller arranged on the spinning equipment is a first preformed spinning roller, so that a parabolic groove at the upper part of the first preformed spinning roller corresponds to the upper part of the base metal; the spinning equipment is provided with a core mold clamp, the base material is arranged on the core mold clamp, a main shaft of the spinning equipment rotates to drive the core mold clamp and the base material to rotate, the first preformed spinning wheel rotates and moves horizontally to extrude the base material, and the base material protrudes outwards along a parabolic groove and a lower groove at the upper part of the first preformed spinning wheel to form a protruding part;
(2) the forming spinning roller arranged on the spinning equipment is a second preformed spinning roller, so that a lower groove on the second preformed spinning roller corresponds to the protruding part on the parent metal after the completion of the step (1), the second preformed spinning roller is rotated and horizontally moves, the parent metal after the completion of the step (1) is spun, and the material of the protruding part on the parent metal is continuously protruded outwards to form the protruding part;
(3) the forming roller installed on the spinning equipment is a preliminary forming roller, so that the lower groove on the preliminary forming roller corresponds to the protruding part of the base material after the completion of the step (2), the preliminary forming roller is rotated and horizontally moved for spinning, the material of the protruding part on the base material is continuously protruded outwards to form the protruding part, and the groove type preliminary mould is large in scale.
(4) The forming roller installed on the spinning equipment is a finishing roller, so that a lower groove on the finishing roller corresponds to the protruding part of the base metal after the step (3) is finished, and the finishing roller rotates and moves horizontally to finish spinning to achieve the groove shape finally required by the product.
The invention solves the technical problems by adopting a technical scheme that the invention comprises a core mold fixture composed of an upper core mold and a lower core mold, wherein the upper core mold is connected with a connecting disc of a main shaft assembled on spinning equipment, the lower core mold is connected with a connecting disc of a lower main shaft assembled on the spinning equipment, and a first preformed spinning wheel, a second preformed spinning wheel, a preformed spinning wheel and a finishing spinning wheel are correspondingly arranged on respective spinning wheel shafts; the first preformed rotating wheel is a rolling wheel, the upper part of the first preformed rotating wheel is provided with a groove, and the lower part of the first preformed rotating wheel is provided with a groove; the second preformed rotating wheel is a flat wheel, the lower part of the second preformed rotating wheel is provided with a groove, and the depth of the groove is larger than that of the groove in the first preformed rotating wheel; the lower part of the preliminary forming rotary wheel is provided with a groove, and the depth of the groove is larger than that of the groove in the second preliminary forming rotary wheel; the lower part of the finishing rotary wheel is provided with a groove, and the depth of the groove of the finishing rotary wheel is larger than that of the groove of the primary forming rotary wheel.
The upper part of the first preformed spinning wheel is provided with a groove which is parabolic.
The grooves of the first preformed rotating wheel, the grooves of the second preformed rotating wheel, the grooves of the preformed rotating wheel and the grooves of the finishing rotating wheel are the same in height.
The depth of the groove on the finishing rotary wheel corresponds to the groove type height finally required by the product.
The invention adopts four-step spinning forming to enable the material to flow to a required position, reduce the forming amount of each time, avoid cracking caused by rapid deformation, and the most critical is the first three steps. Aiming at the problems that the upper plate of the two-stage plate belt pulley with the same diameter is thinned and less material is stored, the step (1) adopts rolling and rotating, and a parabolic groove is added at the upper part of a forming wheel, the function of the groove is to promote the lower material to flow a proper amount of material to the upper part, so that the enough material storage of the upper tooth forms is ensured, and the possibility that the upper tooth forms are not formed is avoided; the lower part of the forming wheel is provided with a groove, which has the function of storing a proper amount of material in advance, avoiding that two adjacent teeth on two sides of the protruding part are not formed due to material shortage, and simultaneously avoiding that the middle protruding part is provided with an interlayer and the corresponding inner wall is provided with a dent. The step (2) adopts flat rotation, a groove is arranged at the lower part of the forming wheel, the depth of the groove is larger than that of the corresponding part of the rotating wheel in the step (1), the function of the groove is to continuously store a proper amount of materials, two adjacent teeth at two sides of the protruding part are prevented from being formed due to material shortage, an interlayer at the middle protruding part and a recess at the corresponding inner wall of the interlayer are prevented, and a transition which is more moderate than a standard groove shape is adopted when the interlayer is used for leading the groove to have a shape. The step (3) adopts primary rotation, a groove is formed in the lower part of the forming wheel, the depth of the groove is larger than that of the corresponding part of the rotating wheel in the step (2), the groove is used for continuously storing a proper amount of materials, two adjacent teeth on two sides of a protruding part are prevented from being formed due to material shortage, an interlayer is prevented from being arranged on the middle protruding part, a recess is arranged on the corresponding inner wall of the interlayer, and finally the groove is completely in place by fine rotation in the step (4).
The invention has the beneficial effects that the problem that the groove shape of the same-diameter two-stage plate spinning belt pulley is not formed is solved, the interlayer at the middle bulge part is effectively avoided, and the problem that the corresponding inner wall of the middle bulge part is concave is also overcome; stable spinning production is realized, and a qualified two-stage plate-made spinning belt pulley with the same diameter is provided.
Drawings
The invention is further described below with reference to the drawings and the detailed description.
FIG. 1 is a product produced by the method of the present invention.
Fig. 2 is a schematic diagram of the work of the spinning step (1).
Fig. 3 is a schematic view of a tool structure used in the spin-forming step (1).
Fig. 4 is a schematic diagram of the work of the spinning forming step (2).
Fig. 5 is a schematic view of the construction of the tool used in the spin-forming step (2).
Fig. 6 is a schematic diagram of the working of the spinning forming step (3).
Fig. 7 is a schematic view of the construction of the tool used in the spin-forming step (3).
Fig. 8 is a schematic diagram of the working of the spinning forming step (4).
Fig. 9 is a schematic view of the construction of the tool used in the spin-forming step (4).
Detailed Description
As shown in FIG. 1, 1 is a required plate spinning belt pulley, a groove type, a product is a rotary member, the upper part is a 10-groove multi-wedge type fan belt pulley, the lower part is a 5-groove multi-wedge type fan belt pulley, and the outer diameter phi is 181mm.
As shown in fig. 2 and 3, the upper core mold 2 and the lower core mold 3 form a core mold clamp, the upper core mold 2 is connected with a connecting disc 5 of a main shaft assembled on spinning equipment, the lower core mold 3 is connected with a connecting disc 4 of a main shaft assembled on the spinning equipment, and a first preformed spinning roller 4' is correspondingly arranged on a spinning roller shaft; 1 'is the shape of a plate parent metal before spinning, and is arranged in a core mold clamp, 2' is the shape after the spinning forming step (1), 3 'is the middle protruding part after the forming step (1), 4' is a first preformed spinning wheel, 5 'is an upper parabolic groove of the first preformed spinning wheel, and 6' is a lower groove of the first preformed spinning wheel. The first preform spinning wheel 4' moves horizontally in operation, and the base material is protruded outwards along the parabolic grooves and the lower grooves of the upper part of the preform spinning wheel. In the process, the material flows extremely severely, and uneven distribution and asymmetric pressure of the material flow can be caused by equipment precision, anisotropy of raw materials and the like, so that the deflection of the rotary wheel is increased, and the deflection of the material distribution is increased. The first preformed spinning roller 4 'is a rolling roller, the upper part of the first preformed spinning roller is provided with a parabolic groove 5', the material flow direction and the flow quantity are controlled by the parabolic groove 5 'so as to enable the material to flow uniformly, so that enough material reserves are reserved at the corresponding parts of the teeth on the upper part for spinning in the subsequent process, and meanwhile, a proper amount of material is reserved in the lower groove 6', so that the situation that an interlayer is arranged at the middle protruding part and the corresponding inner wall of the interlayer is concave in the spinning process is avoided.
As shown in fig. 4 and 5, the upper core mold 2 and the lower core mold 3 constitute a core mold jig, the upper core mold 2 is connected to a connection pad 5 of a main shaft mounted on a spinning apparatus, the lower core mold 3 is connected to a connection pad 4 of a main shaft mounted on a spinning apparatus, and a second preform spinning roller 9' is correspondingly mounted on a spinning roller shaft. 2' is the shape of the plate material after spinning in the spinning forming step (1) and before spinning in the spinning forming step (2), 7' is the shape after forming in the step (2), 8' is the middle protruding part after forming in the step (2), and 10' is the groove on the second preformed spinning roller 9 '. The depth of the groove 10 'on the second preformed spinning wheel 9' is larger than the corresponding part of the spinning wheel in the step (1), and the depth of the groove needs to be accurately controlled. If the depth of the groove 10' is too deep, the material reserve is more, the material at the corresponding parts of two adjacent teeth at the middle protruding part is reduced, the material shortage in spinning at the subsequent process step can cause the tooth shape to be unshaped, and meanwhile, the corresponding inner wall of the middle protruding part can be sunken; if the depth of the groove 10 'is too shallow, the intermediate bulge material will be in excessive contact with the second preform wheel 9' resulting in an intermediate bulge. The depth of the grooves 10 'on the second preform wheel 9' is therefore important, mainly to control the proper reserve of material in the middle bulge.
As shown in fig. 6 and 7, the upper core mold 2 and the lower core mold 3 constitute a core mold jig, the upper core mold 2 is connected to a connection pad 5 of a main shaft mounted on a spinning machine, the lower core mold 3 is connected to a connection pad 4 of a main shaft mounted on a spinning machine, and a preliminary forming spinning roller 13' is correspondingly mounted on a spinning roller shaft. 7' is the shape of the plate material after spinning in the spinning forming step (2) and before spinning in the spinning forming step (3), 11' is the shape after forming in the step (3), 12' is the middle bulge part after forming in the step (3), and 14' is the groove on the primary forming roller 13 '. The depth of the groove 14 'on the preformed spinning wheel 13' is larger than the depth of the corresponding part of the spinning wheel in the step (2), and the depth of the groove needs to be accurately controlled. If the depth of the groove 14' is too deep, the material reserve is more, the material at the corresponding positions of two adjacent teeth at the middle protruding position is reduced, the material shortage in spinning at the subsequent process step can cause the tooth shape to be unshaped, and meanwhile, the corresponding inner wall of the middle protruding position can be sunken; if the depth of the groove 14 'is too shallow, the intermediate bulge material will excessively contact the preform wheel 13' resulting in an intermediate bulge. The depth of the grooves 14 'on the preform wheel 13' is therefore important, mainly to further control the proper amount of material reserve in the central bulge.
As shown in fig. 8 and 9, the upper core mold 2 and the lower core mold 3 constitute a core mold jig, the upper core mold 2 is connected to a connection pad 5 of a main shaft mounted on a spinning machine, the lower core mold 3 is connected to a connection pad 4 of a main shaft mounted on a spinning machine, and a finishing roller 15' is correspondingly mounted on a roller shaft. 11' is the shape of the plate material after spinning in the spinning forming step (3) and before spinning in the spinning forming step (4), 1 is the shape after forming in the step (4), namely the final forming state, and 16' is the groove on the finishing roller 15 '. The depth of the groove 16 'on the finishing rotary wheel 15' is larger than the depth of the corresponding part of the rotary wheel in the step (3), and the depth corresponds to the final required height of the product. The deformation of the material in the process step is small, and the finishing effect is mainly achieved.
Claims (1)
1. The spinning process of the two-stage plate belt pulley is characterized by comprising the following steps of: (1) the forming spinning roller arranged on the spinning equipment is a first preformed spinning roller (4 '), so that a parabolic groove (5 ') at the upper part of the first preformed spinning roller (4 ') corresponds to the upper part of the base material; the spinning equipment is provided with a core mold clamp, a base material is arranged on the core mold clamp, a main shaft of the spinning equipment rotates to drive the core mold clamp and the base material to rotate, the first preformed spinning wheel (4 ') rotates and moves horizontally to extrude the base material, the base material protrudes outwards along a parabolic groove (5') at the upper part of the first preformed spinning wheel (4 '), and the base material protrudes outwards along a groove (6') at the lower part of the first preformed spinning wheel (4 ') to form a protruding part (3'); (2) the forming spinning roller arranged on the spinning equipment is a second preformed spinning roller (9 '), a lower groove (10') on the second preformed spinning roller (9 ') corresponds to the protruding part (3') on the base material after the completion of the step (1), the second preformed spinning roller (9 ') rotates and moves horizontally, spinning is carried out on the base material after the completion of the step (1), and the material of the protruding part on the base material continues to protrude outwards to form a protruding part (8'); (3) the forming rotary wheel arranged on the spinning equipment is a preliminary forming rotary wheel (13 '), so that a lower groove (14') on the preliminary forming rotary wheel (13 ') corresponds to a protruding part (8') of the base material after the completion of the step (2), the preliminary forming rotary wheel (13 ') rotates and moves horizontally for spinning, the material of the protruding part on the base material continuously protrudes outwards to form a protruding part (12'), and the groove type of the material is provided with a primary scale; (4) the forming roller installed on the spinning equipment is a finishing roller (15 '), so that a lower groove (16 ') on the finishing roller (15 ') corresponds to a protruding part (12 ') of the base material after the step (3) is finished, and the finishing roller (15 ') rotates and moves horizontally to finish the finishing roller to achieve the groove shape finally required by the product.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311788024.3A CN117732967A (en) | 2017-07-28 | 2017-07-28 | Spinning process special tool for two-stage plate belt pulley |
| CN201710631870.2A CN108213161B (en) | 2017-07-28 | 2017-07-28 | Spinning process of two-stage plate belt pulley and special tool for spinning process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710631870.2A CN108213161B (en) | 2017-07-28 | 2017-07-28 | Spinning process of two-stage plate belt pulley and special tool for spinning process |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311788024.3A Division CN117732967A (en) | 2017-07-28 | 2017-07-28 | Spinning process special tool for two-stage plate belt pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108213161A CN108213161A (en) | 2018-06-29 |
| CN108213161B true CN108213161B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710631870.2A Active CN108213161B (en) | 2017-07-28 | 2017-07-28 | Spinning process of two-stage plate belt pulley and special tool for spinning process |
| CN202311788024.3A Pending CN117732967A (en) | 2017-07-28 | 2017-07-28 | Spinning process special tool for two-stage plate belt pulley |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202311788024.3A Pending CN117732967A (en) | 2017-07-28 | 2017-07-28 | Spinning process special tool for two-stage plate belt pulley |
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| CN (2) | CN108213161B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108916360A (en) * | 2018-09-28 | 2018-11-30 | 浙江东星汽车部件有限公司 | A kind of not isometrical single slot belt pulley of abnormity and its manufacturing method |
| CN110280661A (en) * | 2019-07-03 | 2019-09-27 | 厦门捷讯汽车零部件有限公司 | The processing method of the tooling and class pulley shaft of spinning class pulley shaft |
| CN112065954A (en) * | 2019-09-27 | 2020-12-11 | 东风襄阳旋压技术有限公司 | Composite large V multi-wedge plate belt pulley and forming method |
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- 2017-07-28 CN CN202311788024.3A patent/CN117732967A/en active Pending
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108213161A (en) | 2018-06-29 |
| CN117732967A (en) | 2024-03-22 |
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