Stamping progressive die for dust cover of tensioning wheel

Abstract

The invention is suitable for the technical field of die stamping, and discloses a stamping progressive die for a dust cover of a tensioning wheel, the stamping progressive die comprises an upper die assembly, a lower die assembly is arranged below the upper die assembly, the lower die assembly comprises a lower die positioning assembly, and a lower die forming mechanism is arranged on the lower die positioning assembly. The lower die forming mechanism comprises a first stamping groove and a second stamping groove, the upper die assembly comprises an upper die stamping mechanism, the upper die stamping mechanism comprises a first stamping head and a second stamping head, the first stamping head and the first stamping groove are matched to form first-step stamping, and the second stamping head and the second stamping groove are matched to form second-step stamping. And the lower die assembly further comprises a lower die supporting block, a lower die base is installed on the lower die supporting block, and the device solves the problems that a scattered machining mode is low in production efficiency and machined products have flaws, and the effect of efficiently producing the dustproof cover is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of die stamping, and more specifically to a stamping progressive die for a tension wheel dust cover. Background Art

[0002] As a key component in the mechanical transmission system, the tensioner is mainly used to maintain the proper tension of the transmission belt and ensure the stable transmission of power. As an important component of the tensioner, the dust cover can effectively prevent dust and impurities from entering the tensioner, thereby extending the service life of the tensioner and improving the reliability and stability of the transmission system.

[0003] At present, the manufacturing of the tension wheel dust cover on the market usually adopts a multi-process and multi-die processing method. For example, the metal sheet is first punched out using a punching die to obtain a rough blank shape; then the blank is transferred to a drawing die for stretching to form the basic structure of the dust cover; then other dies are used for further forming, such as flanging and shaping; finally, shearing and other processes are required to obtain the final dust cover product.

[0004] However, the decentralized processing method has low production efficiency. The mold needs to be replaced after each process is completed, and the transfer and positioning of the workpiece between different molds takes a lot of time, resulting in low efficiency of the entire production process and difficulty in meeting the needs of large-scale production. Summary of the invention

[0005] In view of the shortcomings of the prior art, the object of the present invention is to provide a stamping progressive die for a tensioning wheel dust cover.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A stamping progressive die for a tensioning wheel dust cover includes an upper die assembly, a lower die assembly is arranged below the upper die assembly, the lower die assembly includes a lower die positioning assembly, a lower die forming mechanism is arranged on the lower die positioning assembly, the lower die forming mechanism includes a first stamping groove, a second stamping groove, the upper die assembly includes an upper die stamping mechanism, the upper die stamping mechanism includes a first stamping head and a second stamping head, the first stamping head is matched with the first stamping groove to form a first step stamping, and the second stamping head is matched with the second stamping groove to form a second step stamping.

[0008] The present invention is further configured such that: the lower die assembly further includes a lower die support block, a lower die base is installed on the lower die support block, the lower die positioning assembly is installed on the lower die support block, a feed port is installed on one side of the lower die positioning assembly, a stamping groove is provided on the other side of the lower die positioning assembly, the lower die positioning assembly includes a lower die support plate, the feed port is installed on one side of the lower die support plate, the stamping groove is provided on the lower die support plate, pilot pins are equidistantly installed at the middle position of the lower die support plate, positioning rods are rectangularly and equidistantly installed on the lower die base, limiting grooves are provided on the sides of all four positioning rods, and multiple groups of positioning pins are symmetrically arranged on the lower die support plate.

[0009] The present invention is further configured such that: the lower die forming mechanism further includes a third stamping groove, a fourth stamping groove, a fifth stamping groove, a sixth stamping groove, a seventh stamping groove, and an eighth stamping groove, and the lower die forming mechanism is located in the middle of the pilot pins.

[0010] The present invention is further configured such that: the upper die assembly includes an upper die top plate, an upper die fixing plate is installed on the upper die top plate, an upper die positioning assembly is installed on the upper die fixing plate, positioning grooves are rectangularly and equidistantly installed on the upper die fixing plate, and limiting rods are provided on the sides of all four positioning grooves.

[0011] The present invention is further configured such that: the shapes of the positioning grooves and the positioning rods are in fit, and the shapes of the limiting rods and the limiting grooves are in fit.

[0012] The present invention is further configured such that: an upper die stamping mechanism is installed on the upper die positioning assembly, the upper die positioning assembly includes an upper die mounting plate, guiding grooves are equidistantly arranged in the middle of the upper die mounting plate, and the shape of the guiding grooves is in fit with the shape of the pilot pins.

[0013] The present invention is further configured such that: plugging grooves are symmetrically arranged on the upper die mounting plate, and the plugging grooves are in fit with the positioning pins.

[0014] The present invention is further configured such that: the upper die stamping mechanism further includes a third stamping head, a fourth stamping head, a fifth stamping head, a sixth stamping head, a seventh stamping head, and an eighth stamping head, and the shape of the upper die stamping mechanism is in fit with the lower die forming mechanism.

[0015] The present invention is further configured such that: a stamping block is provided on one side of the upper die mounting plate, and the shape of the stamping block is in fit with the stamping groove.

[0016] The present invention is further configured such that: a workpiece to be formed is provided between the upper die assembly and the lower die assembly. The workpiece to be formed includes a sheet material, and a first workpiece to be formed, a second workpiece to be formed, a third workpiece to be formed, a fourth workpiece to be formed, a fifth workpiece to be formed, a sixth workpiece to be formed, a seventh workpiece to be formed, and an eighth workpiece to be formed are provided on the sheet material. The sheet material enters the lower die positioning assembly through the feed port.

[0017] By adopting the above technical solution, the punching feeder feeds the sheet material into the die through the feed port. The pilot pin restricts the position of the sheet material. The upper die assembly moves downward through the hydraulic system and cooperates with the lower die assembly to close the die for the sheet material. The first section is processed into the shape of the first workpiece to be formed, and the waste material during processing drops into the lower die base. The upper die assembly lifts upward, and the punching feeder continues to convey the sheet material forward until it moves to the position of the second punching groove. At this time, the upper die assembly moves downward and cooperates with the lower die assembly to process the shape of the first workpiece to be formed into the second workpiece to be formed. At the same time, a section of the sheet material behind the second workpiece to be formed is simultaneously processed into the shape of the first workpiece to be formed. And so on, the workpiece to be formed is processed continuously. The sheet material is moved forward by the punching feeder according to a fixed pitch, and then processed by the upper die assembly and the lower die assembly, achieving the effect of being able to produce the dust cover with high efficiency and high precision.

[0018] In summary, the present application includes at least one of the following beneficial technical effects:

[0019] The punching feeder feeds the sheet material into the die through the feed port. The upper die assembly moves downward through the hydraulic system and cooperates with the lower die assembly to close the die for the sheet material. The waste material during processing drops into the lower die base. The shape of the first workpiece to be formed is processed into the second workpiece to be formed. At the same time, a section of the sheet material behind the second workpiece to be formed is simultaneously processed into the shape of the first workpiece to be formed. The workpiece to be formed is processed continuously, achieving the effect of being able to produce the dust cover with high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the overall structural schematic diagram of a progressive die for a tension pulley dust cover in the present invention;

[0021] Figure 2 is Figure 1 the exploded structural schematic diagram of

[0022] Figure 3 is Figure 2 the overall structural schematic diagram of the lower die assembly in

[0023] Figure 4 is Figure 2 the matching structural schematic diagram of the lower die forming mechanism and the lower die positioning assembly in

[0024] Figure 5 is Figure 2 a schematic view of the overall structure of the upper die assembly;

[0025] Figure 6 is Figure 2 a schematic view of the mating structure of the upper die positioning component and the upper die stamping mechanism;

[0026] Figure 7 is Figure 2 a schematic view of the mating structure of the lower die assembly and the workpiece to be formed;

[0027] Figure 8 is Figure 2 a schematic view of the overall structure of the workpiece to be formed;

[0028] Figure 9 is Figure 2 a schematic view of the overall structure of the dust cover.

[0029] Explanation of reference numerals: 1. Upper die assembly; 11. Upper die top plate; 12. Upper die positioning component; 121. Upper die mounting plate; 122. Alignment groove; 123. Positioning groove; 13. Positioning groove; 14. Limit rod; 15. Upper die stamping mechanism; 151. First punch head; 152. Second punch head; 153. Third punch head; 154. Fourth punch head; 155. Fifth punch head; 156. Sixth punch head; 157. Seventh punch head; 158. Eighth punch head; 16. Stamping block; 17. Upper die fixing plate;

[0030] 2. Lower die assembly; 21. Lower die base; 22. Lower die support block; 23. Limit groove; 24. Positioning rod; 25. Feed port; 26. Lower die forming mechanism; 261. First stamping groove; 262. Second stamping groove; 263. Third stamping groove; 264. Fourth stamping groove; 265. Fifth stamping groove; 266. Sixth stamping groove; 267. Seventh stamping groove; 268. Eighth stamping groove; 27. Lower die positioning component; 271. Lower die support plate; 272. Alignment pin; 273. Positioning pin; 28. Stamping groove;

[0031] 3. Workpiece to be formed; 31. Plate; 32. First workpiece to be formed; 33. Second workpiece to be formed; 34. Third workpiece to be formed; 35. Fourth workpiece to be formed; 36. Fifth workpiece to be formed; 37. Sixth workpiece to be formed; 38. Seventh workpiece to be formed; 39. Eighth workpiece to be formed;

[0032] 4. Dust cover. Detailed implementation manners

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0034] It should be pointed out that unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0035] Please refer to Figures 1-9 , the present invention provides the following technical solutions:

[0036] Embodiment 1

[0037] Refer to Figure 1 、 Figure 2 and Figure 9 , including an upper die assembly 1 and a lower die assembly 2 disposed below the upper die assembly 1 and a to-be-formed part 3.

[0038] The upper die assembly 1 and the lower die assembly 2 form a die-casting mold. The lower die assembly 2 provides support below, and the upper die assembly 1 applies pressure to the to-be-formed part 3 above. The to-be-formed part 3 enters the die-casting mold from the upper die assembly 1, and the dust cover 4 is the product finally processed from the to-be-formed part 3.

[0039] Refer to Figure 3 and Figure 4 , the lower die assembly 2 includes a lower die support block 22. A lower die base 21 is installed on the lower die support block 22. A lower die positioning assembly 27 is installed on the lower die support block 22. A feed port 25 is installed on one side of the lower die positioning assembly 27. A stamping groove 28 is provided on the other side of the lower die positioning assembly 27. The lower die positioning assembly 27 includes a lower die support plate 271. The feed port 25 is installed on one side of the lower die support plate 271. The stamping groove 28 is provided on the lower die support plate 271. Pilot pins 272 are equidistantly installed at the middle position of the lower die support plate 271. The to-be-formed part 3 is disposed in the gap formed by the pilot pins 272 and the upper surface of the lower die support plate 271.

[0040] The lower die support block 22 forms a stable support at the bottom. The lower die base 21 is connected to support the lower die support block 22 and the lower die positioning component 27. The lower die base 21 provides space for the waste material dropped by the lower die positioning component 27. When the upper die assembly 1 stamps the to-be-formed part 3, the waste material during the stamping process falls into the lower die base 21. The feed inlet 25 provides an entry position for the to-be-formed part 3 and restricts the movement of the to-be-formed part 3 in the die. The stamping groove 28 cooperates with the upper die assembly 1 to shear the processed part of the to-be-formed part 3, avoiding the situation where the to-be-formed part 3 extends a long distance and causes the middle part to warp. The pilot pin 272 restricts the height of the to-be-formed part 3 on the lower die support plate 271. The lower die support plate 271 is installed on the lower die base 21. The pilot pin 272 and the lower die support plate 271 form a gap to restrict the left-right and up-down positions of the to-be-formed part 3, avoiding deviation during the stamping process of the to-be-formed part 3.

[0041] Positioning rods 24 are installed on the lower die base 21 at equal intervals in a rectangle. Limiting grooves 23 are provided on the sides of the four positioning rods 24. Multiple groups of positioning pins 273 are symmetrically arranged on the lower die support plate 271.

[0042] The positioning rods 24 position the lower die assembly 2. The limiting grooves 23 can assist the upper die assembly 1 in positioning. The pilot pin 272 cooperates with the upper die assembly 1 for precise positioning.

[0043] A lower die forming mechanism 26 is provided on the lower die positioning component 27. The lower die forming mechanism 26 includes a first stamping groove 261, a second stamping groove 262, a third stamping groove 263, a fourth stamping groove 264, a fourth stamping groove 264, a fifth stamping groove 265, a seventh stamping groove 267, and an eighth stamping groove 268. The lower die forming mechanism 26 is in the middle of the pilot pin 272.

[0044] The first stamping groove 261, the second stamping groove 262, the third stamping groove 263, the fourth stamping groove 264, the fourth stamping groove 264, the fifth stamping groove 265, the seventh stamping groove 267, and the eighth stamping groove 268 are grooves in different states of the die.

[0045] Refer to Figure 5 and Figure 6 As shown in [relevant figure numbers], the upper die assembly 1 includes an upper die top plate 11. An upper die fixing plate 17 is installed on the upper die top plate 11. An upper die positioning component 12 is installed on the upper die fixing plate 17. Positioning grooves 13 are installed on the upper die fixing plate 17 at equal intervals in a rectangle. Limiting rods 14 are provided on the sides of the four positioning grooves 13.

[0046] The upper die top plate 11 provides a place for the hydraulic system to apply pressure. Through the hydraulic system, the upper die assembly 1 is brought closer to the lower die assembly 2 (not shown in the figure). The hydraulic pump of the hydraulic system pumps hydraulic oil out of the fuel tank and transports it to the hydraulic cylinder through the hydraulic pipeline. The piston in the hydraulic cylinder moves the upper die assembly 1 in the direction of the lower die assembly 2 under the pressure of the hydraulic oil, realizing the die closing action of the mold. During the die closing process, the hydraulic system can adjust the die closing pressure and speed through the pressure regulating valve and flow control valve to ensure that the mold can be precisely closed and will not cause excessive impact and damage to the mold.

[0047] The upper die fixing plate 17 connects the upper die top plate 11 and the upper die positioning assembly 12. When the upper die assembly 1 approaches the lower die assembly 2, the shape of the positioning groove 13 fits that of the positioning rod 24, and the shape of the limit rod 14 fits that of the limit groove 23. The positioning rod 24 is inserted into the positioning groove 13 to form the positioning of the lower die assembly 2 on the upper die assembly 1, and the limit rod 14 abuts against the limit groove 23.

[0048] The upper die positioning assembly 12 is equipped with an upper die stamping mechanism 15. The upper die positioning assembly 12 includes an upper die mounting plate 121. Guide slots 122 are equidistantly arranged in the middle of the upper die mounting plate 121, and the shape of the guide slots 122 fits that of the guide pins 272.

[0049] The upper die positioning assembly 12 positions the upper die stamping mechanism 15. The upper die stamping mechanism 15 cooperates with the lower die forming mechanism 26 to process the to-be-formed part 3. The guide slots 122 position the guide pins 272 to ensure the processing position of the to-be-formed part 3 and prevent deviation during the die closing process.

[0050] Insertion slots 123 are symmetrically arranged on the upper die mounting plate 121, and the insertion slots 123 are fitted with the positioning pins 273.

[0051] The insertion slots 123 are inserted into the positioning pins 273 to achieve precise positioning during the die closing process.

[0052] The upper die stamping mechanism 15 includes a first stamping head 151, a second stamping head 152, a third stamping head 153, a fourth stamping head 154, a fifth stamping head 155, a sixth stamping head 156, a seventh stamping head 157, and an eighth stamping head 158. The shape of the upper die stamping mechanism 15 fits that of the lower die forming mechanism 26.

[0053] The first stamping head 151, the second stamping head 152, the third stamping head 153, the fourth stamping head 154, the fifth stamping head 155, the sixth stamping head 156, the seventh stamping head 157, and the eighth stamping head 158 are the shapes required to process the to-be-formed part 3 in different states.

[0054] On one side of the upper die mounting plate 121, there is a stamping block 16, and the shape of the stamping block 16 fits the stamping groove 28.

[0055] When the upper die assembly 1 and the lower die assembly 2 are closed, the stamping block 16 moves downward, forms a shearing force with the stamping groove 28, and cuts off the processed part to avoid it being too long.

[0056] Refer to Figure 7 and Figure 8 The to-be-formed part 3 includes a sheet 31. On the sheet 31, there are a first to-be-formed workpiece 32, a second to-be-formed workpiece 33, a third to-be-formed workpiece 34, a fourth to-be-formed workpiece 35, a fifth to-be-formed workpiece 36, a sixth to-be-formed workpiece 37, a seventh to-be-formed workpiece 38, and an eighth to-be-formed workpiece 39. The sheet 31 enters the lower die positioning assembly 27 through the feed port 25.

[0057] The first to-be-formed workpiece 32, the second to-be-formed workpiece 33, the third to-be-formed workpiece 34, the fourth to-be-formed workpiece 35, the fifth to-be-formed workpiece 36, the sixth to-be-formed workpiece 37, the seventh to-be-formed workpiece 38, and the eighth to-be-formed workpiece 39 are shapes processed and formed in different states.

[0058] Refer to Figures 2 to 8 When it is necessary to stamp the to-be-formed part 3, the sheet 31 is fed into the mold through the feed port 25 by the punch feeder. The pilot pin 272 restricts the position of the sheet 31. The upper die assembly 1 moves downward through the hydraulic system and cooperates with the lower die assembly 2 to close the mold for the sheet 31. The first punch head 151 cooperates with the first stamping groove 261 to stamp the sheet 31 to form the first to-be-formed workpiece 32. After the first section of the sheet 31 is processed into the shape of the first to-be-formed workpiece 32, the upper die assembly 1 is lifted upward, and the punch feeder continues to convey the sheet 31 forward;

[0059] When the first section of the sheet 31 moves to the position of the second stamping groove 262, at this time, the upper die assembly 1 moves downward and cooperates with the lower die assembly 2. The second punch head 152 cooperates with the second stamping groove 262 to stamp the first section of the sheet 31 to form the second to-be-formed workpiece 33. When the shape of the first to-be-formed workpiece 32 on the first section of the sheet 31 is processed into the second to-be-formed workpiece 33, the second section of the sheet 31 is simultaneously processed into the shape of the first to-be-formed workpiece 32;

[0060] The punch feeder continues to convey the sheet 31 forward by the processing step. The third punch head 153 cooperates with the third stamping groove 263 to stamp the first section of the sheet 31 to form the third to-be-formed workpiece 34. At this time, the second section of the sheet 31 is stamped by the second punch head 152 and the second stamping groove 262 to form the second to-be-formed workpiece 33, and the third section of the sheet 31 is stamped by the first punch head 151 and the first stamping groove 261 to form the first to-be-formed workpiece 32;

[0061] The punch feeder continues to convey the first section of the sheet forward by the step distance of one processing position. The fourth punch head 154 cooperates with the fourth punching groove 264 to punch the first section of the sheet 31 to form the fourth workpiece to be formed 35. The third punch head 153 cooperates with the third punching groove 263 to punch the second section of the sheet 31 to form the third workpiece to be formed 34. The second punch head 152 cooperates with the second punching groove 262 to punch the third section of the sheet 31 to form the second workpiece to be formed 33;

[0062] The punch feeder continues to convey the first section of the sheet forward by the step distance of one processing position. The fifth punch head 155 cooperates with the fifth punching groove 265 to punch the first section of the sheet 31 to form the fifth workpiece to be formed 36. The fourth punch head 154 cooperates with the fourth punching groove 264 to punch the second section of the sheet 31 to form the fourth workpiece to be formed 35. The third punch head 153 cooperates with the third punching groove 263 to punch the third section of the sheet 31 to form the third workpiece to be formed 34. The second punch head 152 cooperates with the second punching groove 262 to punch the fourth section of the sheet 31 to form the second workpiece to be formed 33;

[0063] The punch feeder continues to convey the first section of the sheet forward by the step distance of one processing position. The sixth punch head 156 cooperates with the sixth punching groove 266 to punch the first section of the sheet 31 to form the sixth workpiece to be formed 37. The fifth punch head 155 cooperates with the fifth punching groove 265 to punch the second section of the sheet 31 to form the fifth workpiece to be formed 36. The fourth punch head 154 cooperates with the fourth punching groove 264 to punch the third section of the sheet 31 to form the fourth workpiece to be formed 35. The third punch head 153 cooperates with the third punching groove 263 to punch the fourth section of the sheet 31 to form the third workpiece to be formed 34. The second punch head 152 cooperates with the second punching groove 262 to punch the fifth section of the sheet 31 to form the second workpiece to be formed 33;

[0064] The punch feeder continues to convey the first section of the sheet forward by the step distance of one processing position. The seventh punch head 157 cooperates with the seventh punching groove 267 to punch the first section of the sheet 31 to form the seventh workpiece to be formed 38. The sixth punch head 156 cooperates with the sixth punching groove 266 to punch the second section of the sheet 31 to form the sixth workpiece to be formed 37. The fifth punch head 155 cooperates with the fifth punching groove 265 to punch the third section of the sheet 31 to form the fifth workpiece to be formed 36. The fourth punch head 154 cooperates with the fourth punching groove 264 to punch the fourth section of the sheet 31 to form the fourth workpiece to be formed 35. The third punch head 153 cooperates with the third punching groove 263 to punch the fifth section of the sheet 31 to form the third workpiece to be formed 34. The second punch head 152 cooperates with the second punching groove 262 to punch the sixth section of the sheet 31 to form the second workpiece to be formed 33;

[0065] The punching feeder continues to convey the first section of the sheet forward by the step distance of one processing position. The eighth punching head 158 cooperates with the eighth punching groove 268 to punch the first section of the sheet 31 to form the eighth workpiece to be formed 39. The seventh punching head 157 cooperates with the seventh punching groove 267 to punch the second section of the sheet 31 to form the seventh workpiece to be formed 38. The sixth punching head 156 cooperates with the sixth punching groove 266 to punch the third section of the sheet 31 to form the sixth workpiece to be formed 37. The fifth punching head 155 cooperates with the fifth punching groove 265 to punch the fourth section of the sheet 31 to form the fifth workpiece to be formed 36. The fourth punching head 154 cooperates with the fourth punching groove 264 to punch the fifth section of the sheet 31 to form the fourth workpiece to be formed 35. The third punching head 153 cooperates with the third punching groove 263 to punch the sixth section of the sheet 31 to form the third workpiece to be formed 34. The second punching head 152 cooperates with the second punching groove 262 to punch the seventh section of the sheet 31 to form the second workpiece to be formed 33. After the eighth punching, the dust cover 4 is formed. The first section of the sheet 31 moves towards the punching groove 28. When the upper die assembly 1 and the lower die assembly 2 are engaged, the punching block 16 and the punching groove 28 cooperate to punch off the first section of the sheet.

[0066] The workpiece to be formed 3 is continuously processed, and then the punching feeder moves the sheet 31 forward according to a fixed step distance. The upper die assembly 1 and the lower die assembly 2 process the sheet 31, avoiding the problems of repeated workpiece positioning and continuous switching of processed workpieces in the prior art, which reduces the work efficiency, and achieving the effect of being able to produce the dust cover 4 with high efficiency and high precision.

[0067] In the processing process of multiple processes and multiple dies, problems such as workpiece deformation and inaccurate positioning are likely to occur, thus affecting the dimensional accuracy and shape quality of the final product, resulting in unstable product quality. In this application, the upper die assembly 1 moves downward through the hydraulic system and cooperates with the lower die assembly 2 to process the sheet 31 according to a fixed step distance. The pilot pin 272 restricts the position of the sheet 31. The positioning rod 24 is inserted into the positioning groove 13. The limiting rod 14 abuts against the limiting groove 23. The pilot groove 122 positions the pilot pin 272. The insertion groove 123 is inserted into the positioning pin 273, achieving the effect of being able to accurately position the dust cover 4 and avoiding deformation of the dust cover 4.

[0068] By setting the upper die assembly 1 and the lower die assembly 2 to cooperate to form a progressive die, the sheet 31 is conveyed at a fixed step distance. Through different levels of processing steps, the sheet 31 is processed, so that each time the upper die assembly 1 and the lower die assembly 2 are closed, the workpiece to be formed 3 on the sheet is processed, improving the processing efficiency and avoiding the need to set corresponding processing equipment for each step, occupying the processing position, achieving the reduction of the required punching presses and floor area, and reducing the transportation and warehouse occupancy costs of semi-finished products.

[0069] Based on the above-mentioned ideal embodiments of the present invention as inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A stamping progressive die for a tension wheel dust cover, characterized in that: The invention comprises an upper die assembly (1), a lower die assembly (2) is arranged below the upper die assembly (1), the lower die assembly (2) comprises a lower die positioning assembly (27), a lower die forming mechanism (26) is arranged on the lower die positioning assembly (27), the lower die forming mechanism (26) comprises a first stamping groove (261), a second stamping groove (262), the upper die assembly (1) comprises an upper die stamping mechanism (15), the upper die stamping mechanism (15) comprises a first stamping head (151) and a second stamping head (152), the first stamping head (151) and the first stamping groove (261) are matched to form a first stamping step, and the second stamping head (152) and the second stamping groove (262) are matched to form a second stamping step.

2. The stamping progressive die for the tension wheel dust cover according to claim 1, characterized in that: The lower die assembly (2) further comprises a lower die support block (22), a lower die base (21) is mounted on the lower die support block (22), the lower die positioning assembly (27) is mounted on the lower die support block (22), a feed port (25) is mounted on one side of the lower die positioning assembly (27), a stamping groove (28) is arranged on the other side of the lower die positioning assembly (27), the lower die positioning assembly (27) comprises a lower die support plate (271), the feed port ( 25) is installed on one side of the lower die support plate (271), the stamping groove (28) is arranged on the lower die support plate (271), the middle position of the lower die support plate (271) is equidistantly installed with guide pins (272), the lower die base (21) is rectangularly equidistantly installed with positioning rods (24), the sides of the four positioning rods (24) are all provided with limiting grooves (23), and a plurality of groups of positioning pins (273) are symmetrically arranged on the lower die support plate (271).

3. The stamping progressive die for the tension wheel dust cover according to claim 2, characterized in that: The lower die forming mechanism (26) further comprises a third stamping groove (263), a fourth stamping groove (264), a fifth stamping groove (265), a sixth stamping groove (266), a seventh stamping groove (267), and an eighth stamping groove (268), and the lower die forming mechanism (26) is located in the middle of the guide pin (272).

4. The stamping progressive die for the tension wheel dust cover according to claim 2, characterized in that: The upper mold assembly (1) comprises an upper mold top plate (11), an upper mold fixing plate (17) is installed on the upper mold top plate (11), an upper mold positioning assembly (12) is installed on the upper mold fixing plate (17), and rectangular positioning grooves (13) are equidistantly installed on the upper mold fixing plate (17), and the sides of the four positioning grooves (13) are each provided with a limiting rod (14).

5. The stamping progressive die for the tension wheel dust cover according to claim 4, characterized in that: The positioning groove (13) matches the shape of the positioning rod (24), and the limiting rod (14) matches the shape of the limiting groove (23).

6. The stamping progressive die for the tension wheel dust cover according to claim 4, characterized in that: An upper die stamping mechanism (15) is installed on the upper die positioning assembly (12), and the upper die positioning assembly (12) comprises an upper die mounting plate (121), and guide grooves (122) are equidistantly arranged in the middle of the upper die mounting plate (121), and the shape of the guide grooves (122) matches the shape of the guide pin (272).

7. The stamping progressive die for the tension wheel dust cover according to claim 6, characterized in that: The upper mold mounting plate (121) is symmetrically provided with plug-in slots (123), and the plug-in slots (123) are matched with the positioning pins (273).

8. The stamping progressive die for the tension wheel dust cover according to claim 6, characterized in that: The upper die stamping mechanism (15) further comprises a third stamping head (153), a fourth stamping head (154), a fifth stamping head (155), a sixth stamping head (156), a seventh stamping head (157), and an eighth stamping head (158); the shape of the upper die stamping mechanism (15) matches the shape of the lower die forming mechanism (26).

9. The stamping progressive die for the tension wheel dust cover according to claim 6, characterized in that: A punching block (16) is provided on one side of the upper die mounting plate (121), and the shape of the punching block (16) matches the punching groove (28).

10. The stamping progressive die for the tension wheel dust cover according to claim 2, characterized in that: A workpiece to be formed (3) is arranged between the upper die assembly (1) and the lower die assembly (2), and the workpiece to be formed (3) comprises a plate (31), and a first workpiece to be formed (32), a second workpiece to be formed (33), a third workpiece to be formed (34), a fourth workpiece to be formed (35), a fifth workpiece to be formed (36), a sixth workpiece to be formed (37), a seventh workpiece to be formed (38), and an eighth workpiece to be formed (39) are arranged on the plate (31), and the plate (31) enters the lower die positioning assembly (27) through a feed port (25).

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