Efficient stamping die for gear machining

Abstract

The utility model relates to an efficient stamping die for gear machining, which comprises an upper die and a lower die, the lower die is provided with a plurality of hydraulic cylinders for driving the upper die to ascend and descend, the upper die is provided with an annular stamping cutter, and a first hydraulic element for driving the stamping cutter to descend is arranged in the upper die. A forming groove is formed in the position, corresponding to the stamping cutter, of the lower die, a jacking ring moves in the forming groove, a second hydraulic element for driving the jacking ring to move is arranged in the lower die, an inner fixing block is connected into the forming groove and located in the jacking ring, and a second hydraulic element for driving the jacking ring to move is arranged in the lower die. A discharging assembly for discharging stamping waste is arranged on the lower die, and a positioning piece for limiting the position of the upper die is arranged on the lower die. The gear stamping die has the effect of improving the applicability of the gear stamping die.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of stamping dies, in particular to a high-efficiency stamping die for gear machining. BACKGROUND

[0002] Gears are widely used in the fields of automobiles, aerospace, precision instruments and the like as core components of mechanical transmission systems. Traditional gear manufacturing methods include cutting, casting and forging, but stamping forming technology has become the mainstream production method for small and medium modulus gears due to its high efficiency and low cost.

[0003] A gear fine-stamping die disclosed in Chinese Patent No. CN222536173U comprises a bottom plate, two fixed plates are fixedly installed on the top of the bottom plate, a rotating plate is movably connected to one side of the outer surfaces of the two fixed plates, a plurality of lower die grooves are formed in the top of the rotating plate, and a disc is fixedly connected to one end of the rotating plate. The utility model discloses a pushing rod of an oil press starts to quickly push an upper die, the upper die extrudes fine-stamping material into the lower die grooves, after the gear is formed, the rotating plate is prevented from overturning and shaking during stamping, the disc is driven to rotate, the rotating plate is driven to rotate at the same time that the disc rotates, the cylinder drives a conveying belt to rotate and transmit, the formed gear is transmitted to a collecting box, a worker can disassemble the bolts from the reinforcing blocks, and the gear in the collecting box is taken out, so that the fine-stamping die is more perfect, timely demolding is achieved after fine stamping is completed, the fine-stamping efficiency is improved, and the progress of gear production is improved.

[0004] According to the related technology in the above, the lower die groove is hollow in the prior art, and the corresponding upper die is solid, so that the formed gear piece has no driving hole in the middle, and thus the worker has to perform secondary stamping on the formed gear piece. The secondary stamping has multiple disadvantages, the secondary installation of the gear piece has installation errors, the driving hole and the outer diameter of the gear piece have concentric errors, the secondary stamping of the gear piece increases the machining process of the gear piece, reduces the machining efficiency of the gear piece, and reduces the applicability of the gear machining die. SUMMARY

[0005] In order to improve the applicability of the gear stamping die, the application provides a high-efficiency stamping die for gear machining.

[0006] The high-efficiency stamping die for gear machining provided by the application adopts the following technical scheme:

[0007] The utility model provides a high -efficient punch die for gear processing, including upper die and lower die, be provided with a plurality of hydraulic cylinder for driving the upper die lift on the lower die, the upper die is provided with annular punch, the first hydraulic element of built -in drive the punch is lowered in the upper die, the lower die is opened to use the position of punch and has the forming groove, the forming groove moves has the jacking ring, the second hydraulic element of built -in drive the jacking ring moves in the lower die, the inner fixed block is connected in the forming groove, the inner fixed block is located the inside of jacking ring, the lower die is provided with the material removal assembly of excluding punch waste, the lower die is provided with the positioning piece of limiting the position of upper die.

[0008] Through adopting the technical scheme, the gear raw material is placed on the lower die during punching, the hydraulic cylinder is started, the lower die is lowered until the gear raw material is pressed, the positioning piece is used to limit the moving direction of the upper die in the process, then the first hydraulic element is used to drive the punch to descend, the gear is formed in the forming groove, finally the material removal assembly is used to discharge the waste from the lower die, the effect of gear punching is realized.

[0009] Optionally, the upper die is connected with an inner fixed plate, the inner fixed plate is located inside the punch, a plurality of fine grooves are formed on the bottom wall of the inner fixed plate, and the fine grooves are arranged in a longitudinal and transverse intersecting manner.

[0010] Through the above technical scheme, the inner fixed plate is used to improve the punching stability of the punch on one hand, and is used to extrude the waste of the gear driving hole on the other hand, so that the waste is adhered to the inner fixed plate, and the waste is discharged when the upper die rises.

[0011] Optionally, the material removal assembly includes a material removal cylinder and a material removal frame, the material removal cylinder is connected to the lower die, the material removal frame is connected to the moving end of the material removal cylinder, and the material removal frame is located outside the lower die in the initial position, the material removal frame is provided with an inlet hole, and one end of the material removal frame is open.

[0012] Through the above technical scheme, when discharging the waste, the waste in the gear driving hole rises with the inner fixed plate, the material removal frame is moved to below the inner fixed plate by the material removal cylinder, the lower die is lowered by the hydraulic cylinder, the waste enters the inlet hole, then the material removal frame is reversely moved by the material removal cylinder, the waste falls into the material removal frame when the material removal frame hits the waste, and the waste moves by inertia and falls out of the material removal frame, so that the waste in the gear driving hole is discharged.

[0013] Optionally, a plurality of fixing rods are connected to the bottom wall of the discharging frame, and the fixing rods are parallel to the moving direction of the discharging frame.

[0014] By adopting the above technical scheme, if the bottom wall of the discharging frame is a flat surface, the waste material cannot be smoothly discharged from the discharging frame due to friction with the bottom wall when moving by inertia. By arranging the fixing rods, the roughness of the bottom wall of the discharging frame is reduced, and the possibility of the waste material not being smoothly discharged from the discharging frame is reduced.

[0015] Optionally, a discharging frame is connected between the moving end of the discharging cylinder and the discharging frame, and a loading groove is formed in the discharging frame, and the loading groove is arranged in alignment with the feeding hole.

[0016] By adopting the above technical scheme, by arranging the discharging frame, when the waste material is raised with the upper die, the discharging frame is moved by the discharging cylinder, on the one hand, the discharging frame is aligned with the waste material, and on the other hand, the loading groove is aligned with the forming groove. Then, the jacking ring is raised by the second hydraulic element, the gear is raised into the loading groove, and finally the discharging frame is reversely moved, the waste material enters the discharging frame, and the gear is moved by the impact of the loading groove, so as to realize the effect that the waste material and the gear are discharged from the lower die at the same time.

[0017] Optionally, a material conveying frame is connected to the lower die, a material conveying roller is arranged in the material conveying frame, a material conveying motor and a material conveying belt are arranged on the material conveying frame, a waste material passage is connected to the position corresponding to the outlet of the discharging frame on the lower die, the waste material passage is arranged obliquely, and the highest position of the waste material passage is close to the discharging frame and the lowest position of the waste material passage is close to the material conveying belt.

[0018] By adopting the above technical scheme, after the waste material is discharged from the discharging frame by inertia, it falls into the waste material passage, and then moves to the material conveying belt. The material conveying motor is started to move the material conveying belt, so as to realize the effect of uniformly collecting the waste material.

[0019] Optionally, a limiting frame is connected to the highest position of the waste material passage, and the limiting frame is a rectangular frame.

[0020] By adopting the above technical scheme, the waste material is moved out of the discharging frame by inertia, and there is a possibility that it does not fall into the waste material passage. By limiting the limiting frame, the waste material falls smoothly within the range of the waste material passage, and the convenience of collecting the waste material is further improved.

[0021] Optionally, a supporting seat is connected to the lower die, a supporting sliding rail is connected to the supporting seat, a moving seat is slidably connected to the supporting sliding rail, and the moving seat is connected to the discharging frame.

[0022] By adopting the above technical scheme, by arranging the supporting sliding rail and the moving seat, the stability of the movement of the discharging frame and the impact on the waste material is assisted to be improved, and the possibility of the discharging frame being deflected is reduced.

[0023] Optionally, the forming groove is provided with two, the lower die is provided with a feeding port and a discharging port, the upper die is provided with a guide assembly at positions corresponding to the feeding port and the discharging port, the guide assembly comprises a fixed plate, a connecting column and a limiting ring, the fixed plate is connected to the upper die, one connecting column is vertically connected to each side of the fixed plate, and the limiting ring is connected to the connecting column, and the limiting ring is provided with a ring groove.

[0024] By adopting the above technical scheme, the gear raw material is a long strip-shaped metal plate, when feeding, the external equipment drives the gear raw material to move between the two ring grooves, so that the gear raw material smoothly enters between the lower die and the upper die, after the gear is formed, the waste at the gear and the driving hole is discharged with the movement of the discharging frame, and the gear outer contour waste is retained on the lower die, the gear raw material continues to move, pushes the remaining waste to move, until the new gear raw material covers the two forming grooves, and then the remaining gear raw material passes through the two limiting rings at the discharging port, and the remaining waste is gradually pushed by the gear raw material, and falls on the feeding belt after being pushed out of the lower die, so that the waste collecting effect is realized.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. When stamping, the gear raw material is placed on the lower die, the hydraulic cylinder is started, and the lower die is lowered until the gear raw material is compressed, in this process, the movement direction of the upper die is limited by the positioning member, then the first hydraulic element is used to drive the stamping knife to descend, so that the gear is formed in the forming groove, and finally the waste is discharged from the lower die by the discharging assembly, so that the gear stamping effect is realized. By arranging the forming groove and the inner fixed block, the stamping knife is used for stamping, so that the gear outer contour and the driving hole are formed in one process, compared with the prior art, the machining error caused by the secondary stamping of the gear is avoided, so that the machining precision of the gear is ensured, the machining steps of the gear are reduced, the machining efficiency of the gear is improved, and the applicability of the gear stamping die is improved.

[0027] 2. When discharging, the waste at the gear driving hole rises with the inner fixed plate, the discharging frame is moved to below the inner fixed plate by the discharging cylinder, the lower die is lowered by the hydraulic cylinder, so that the waste enters the feeding hole, then the discharging frame is reversely moved by the discharging cylinder, at this time, the discharging frame hits the waste, and the waste falls into the discharging frame, until the discharging frame returns to the initial position, the waste moves by inertia and is discharged from the discharging frame, so that the waste discharging effect at the gear driving hole is realized. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the gear stamping die in the embodiment of the present application.

[0029] Figure 2 It is an exploded view for embodying the structure of the upper die and the lower die in the embodiment of the present application.

[0030] Figure 3 is a structure schematic diagram of the stamping cutter in the embodiment of the application.

[0031] Figure 4 is a structure schematic diagram of the lower die and the material discharging assembly in the embodiment of the application.

[0032] Figure 5 is a sectional view for embodying the internal structure of the upper die and the lower die in the embodiment of the application.

[0033] Figure 6 is Figure 5 an enlarged view at A in FIG. 4.

[0034] Legend: 1, upper die; 11, stamping cutter; 12, inner fixing plate; 121, fine groove; 2, lower die; 21, hydraulic cylinder; 22, positioning piece; 23, anti-collision column; 24, forming groove; 25, inner fixing block; 26, jacking ring; 27, supporting slide rail; 28, discharging passage; 3, guiding assembly; 31, fixed plate; 32, connecting column; 33, limiting ring; 331, annular groove; 4, material discharging assembly; 41, material discharging cylinder; 42, material discharging frame; 421, feeding hole; 422, fixed rod; 5, material discharging rack; 51, feeding groove; 52, avoiding hole; 6, waste passage; 61, limiting frame; 7, material conveying rack; 71, material conveying belt; 72, material conveying motor. DETAILED DESCRIPTION

[0035] The following will be described in detail with reference to the accompanying drawings. Figures 1-6 The application will be further described in detail.

[0036] The embodiment of the application discloses a high-efficiency stamping die for gear machining. Referring to Figure 1 and Figure 2 , the high-efficiency stamping die for gear machining comprises an upper die 1 and a lower die 2, a plurality of hydraulic cylinders 21 are arranged on the lower die 2, and the upper die 1 is installed at the output end of the hydraulic cylinders 21. A plurality of positioning pieces 22 are arranged on the upper die 1, the positioning pieces 22 are positioning columns, and positioning holes are formed at positions corresponding to the positioning pieces 22 on the lower die 2. A plurality of fixed columns are vertically and fixedly connected to the upper die 1, anti-collision columns 23 are fixedly connected to the lower die 2 at positions corresponding to the fixed columns, and during stamping, the positioning pieces 22 are inserted into the positioning holes, and a gap is left between the fixed columns and the anti-collision columns 23.

[0037] Referring to Figure 3 , Figure 4 and Figure 5 , a plurality of annular stamping cutters 11 are arranged on the upper die 1, two stamping cutters 11 are taken as an example in the embodiment, and a first hydraulic element for driving the stamping cutters 11 to descend is arranged in the upper die 1. An inner fixing plate 12 is also fixedly connected to the upper die 1, the inner fixing plate 12 is located in the stamping cutters 11, and a plurality of fine grooves 121 are arranged on the bottom wall of the inner fixing plate 12, for example, the fine grooves 121 are arranged in a longitudinal and transverse intersecting mode.

[0038] With reference to Figure 4 , Figure 5 and Figure 6 , the lower die 2 is provided with a forming groove 24 at a position corresponding to the position of the punching knife 11, and a lifting ring 26 is movably arranged in the forming groove 24. The lower die 2 is further fixedly connected with an inner fixing block 25, which is located in the lifting ring 26 and flush with the surface of the lower die 2. The lower die 2 is provided with a second hydraulic element for driving the lifting ring 26 to move.

[0039] With reference to Figure 2 , the lower die 2 is provided with an inlet and an outlet, and the upper die 1 is provided with a guide assembly 3 at a position corresponding to the inlet and the outlet. The guide assembly 3 includes a fixed plate 31, a connecting column 32 and a limiting ring 33. The fixed plate 31 is connected to the upper die 1 by bolts, and a connecting cross rod is connected to the fixed plate 31 by bolts. The connecting column 32 is fixedly connected to the two ends of the connecting cross rod in a vertical manner. The limiting ring 33 is fixedly connected to the bottom end of the connecting column 32, and the limiting ring 33 is provided with a ring groove 331.

[0040] The gear raw material is a long strip of metal plate. The gear raw material enters between the lower die 2 and the upper die 1 through the two limiting rings 33 at the inlet. The hydraulic cylinder 21 is started to make the lower die 2 descend to press the gear raw material. The first hydraulic element drives the punching knife 11 to descend to make the gear formed in the forming groove 24. The waste at the gear driving hole is extruded by the inner fixed plate 12 and rises with the upper die 1. The remaining outer contour waste is pushed out of the lower die 2 with the subsequent gear raw material, thereby achieving the effect of gear processing.

[0041] With reference to Figure 4 , Figure 5 and Figure 6 , the lower die 2 is provided with a discharging assembly 4, which includes a discharging cylinder 41 and a discharging frame 42. The discharging cylinder 41 is horizontally connected to one side of the lower die 2 and located below the outlet. The moving end of the discharging cylinder 41 is connected with a discharging rack 5 by bolts, and the bottom wall of the discharging rack 5 is provided with a charging groove 51. The lower die 2 is fixedly connected with a supporting seat, and the supporting seat is connected with a supporting slide rail 27 by bolts. The supporting slide rail 27 is parallel to the moving direction of the discharging cylinder 41. A moving seat is slidingly connected to the supporting slide rail 27, and the moving seat is connected to the discharging rack 5 by bolts. The supporting slide rail 27 and the moving seat are used to improve the moving stability of the discharging rack 5. The discharging rack 5 is provided with an avoiding hole 52, and one of the positioning members 22 passes through the avoiding hole 52 in the initial position. The avoiding hole 52 is used to assist in positioning the initial position of the discharging rack 5.

[0042] With reference to Figure 4 and Figure 6The discharging frame 42 is bolted to the top wall of the discharging frame 5, the top wall of the discharging frame 42 is provided with a feeding hole 421, the feeding hole 421 is aligned with the charging groove 51 and is provided with an opening at the side end. The bottom wall of the discharging frame 42 is fixedly connected with a plurality of fixed rods 422, the fixed rods 422 are parallel to the moving direction of the discharging frame 42. The fixed rods 422 are used to reduce the roughness of the bottom wall of the discharging frame 42. In the initial position, the discharging frame 5 and the discharging frame 42 are located outside the lower mold 2.

[0043] Referring to Figure 4 and Figure 5 The side wall of the lower mold 2 corresponding to the moving direction of the discharging frame 5 is fixedly connected with a discharging channel 28, the discharging channel 28 is inclinedly arranged and the highest part is fixedly connected with the lower mold 2. The support seat is provided with a waste channel 6, the waste channel 6 is inclinedly arranged and the highest part is fixedly connected with the support seat, the waste channel 6 is fixedly connected with a limiting frame 61, the limiting frame 61 is a rectangular frame, the limiting frame 61 is used to limit the waste falling into the waste channel 6.

[0044] Referring to Figure 1 The side wall of the lower mold 2 corresponding to the discharging channel 28 is fixedly connected with a discharging frame 42, the two ends of the discharging frame 42 are provided with two discharging rollers, the two discharging rollers are sleeved with a discharging belt 71, the discharging belt 71 is located below the waste channel 6. The discharging frame 7 is provided with a discharging motor 72, the discharging motor 72 is connected with the discharging roller through a transmission belt.

[0045] The implementation principle of the high-efficiency stamping die for gear machining is as follows: during machining, the gear raw material enters between the lower mold 2 and the upper mold 1 through the two limiting rings 33, the hydraulic cylinder 21 is started to make the upper mold 1 descend to press the gear raw material, the first hydraulic element is started to make the stamping cutter 11 descend to make the gear formed in the forming groove 24, the hydraulic cylinder 21 is restored, the waste at the gear driving hole rises with the inner fixed plate 12, the waste of the outer contour of the gear stays on the lower mold 2, the discharging cylinder 41 is started to make the discharging frame 5 move to drive the discharging frame 42 to move until the charging groove 51 is aligned with the forming groove 24 and the feeding hole 421 is aligned with the inner fixed plate 12, the upper mold 1 is lowered to make the waste on the inner fixed plate 12 enter the feeding hole 421, the second hydraulic element is started to make the lifting ring 26 rise to drive the gear to enter the charging groove 51, the discharging cylinder 41 is restored, the waste on the inner fixed plate 12 falls into the discharging frame 42, the gear is pushed by the discharging frame 5 and falls into the discharging channel 28 to be discharged, when the discharging frame 42 returns to the initial position, the waste is separated from the discharging frame 42 due to inertia and falls into the waste channel 6 through the limiting frame 61, and then falls onto the discharging belt 71, the discharging motor 72 is started to make the discharging belt 71 move to drive the waste to move, at the same time, the gear raw material moves to drive the waste of the outer contour of the gear to move until the gear raw material covers the two forming grooves 24 again, the waste accumulates on the lower mold 2 until the waste of the outer contour of the gear separates from the lower mold 2 and falls onto the discharging belt 71, thereby achieving the effects of automatic discharging, stamping gear and automatic discharging of the gear and waste.

[0046] By setting the forming groove 24 and the inner fixing block 25, cooperating with the stamping cutter 11 to stamp, the gear is formed with an outer contour and a driving hole in one process, compared with the prior art, avoiding the processing error caused by the secondary stamping of the gear, so as to not only ensure the machining precision of the gear, but also reduce the machining steps of the gear, improve the machining efficiency of the gear, and improve the applicability of the gear stamping die.

[0047] The above are preferred embodiments of the present application, not to limit the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high-efficiency stamping die for gear processing, comprising an upper die (1) and a lower die (2), wherein the lower die (2) is provided with a plurality of hydraulic cylinders (21) for driving the upper die (1) to rise and fall, characterized in that: The upper die (1) is provided with an annular stamping cutter (11). The upper die (1) has a built-in first hydraulic component that drives the stamping cutter (11) to descend. The lower die (2) has a forming groove (24) at the position corresponding to the stamping cutter (11). A lifting ring (26) moves within the forming groove (24). The lower die (2) has a built-in second hydraulic component that drives the lifting ring (26) to move. An inner solid block (25) is connected within the forming groove (24). The inner solid block (25) is located inside the lifting ring (26). The lower die (2) is provided with a discharge assembly (4) for discharging stamping waste. The lower die (2) is provided with a positioning component (22) that restricts the position of the upper die (1).

2. The high-efficiency stamping die for gear processing according to claim 1, characterized in that: The upper mold (1) is connected to an inner solid plate (12), which is located inside the stamping knife (11). The bottom wall of the inner solid plate (12) has several fine grooves (121), which are arranged in a crisscross pattern.

3. The high-efficiency stamping die for gear processing according to claim 1, characterized in that: The material discharge assembly (4) includes a material discharge cylinder (41) and a material discharge frame (42). The material discharge cylinder (41) is connected to the lower mold (2), and the material discharge frame (42) is connected to the moving end of the material discharge cylinder (41). In the initial position, the material discharge frame (42) is located outside the lower mold (2). The material discharge frame (42) has a feeding hole (421) and one end of the material discharge frame (42) is open.

4. The high-efficiency stamping die for gear processing according to claim 3, characterized in that: A number of fixed rods (422) are connected to the bottom wall of the discharge frame (42), and the fixed rods (422) are parallel to the moving direction of the discharge frame (42).

5. The high-efficiency stamping die for gear processing according to claim 3, characterized in that: The moving end of the discharge cylinder (41) is connected to the discharge frame (42) by a discharge rack (5), and the discharge rack (5) has a loading groove (51) which is aligned with the feed hole (421).

6. The high-efficiency stamping die for gear processing according to claim 3, characterized in that: The lower mold (2) is connected to a feeding frame (7), which has a built-in feeding roller. The feeding frame (7) is equipped with a feeding motor (72) and a feeding belt (71). A waste channel (6) is connected to the lower mold (2) at the position corresponding to the outlet of the discharge frame (42). The waste channel (6) is inclined, with the highest point of the waste channel (6) close to the discharge frame (42) and the lowest point close to the feeding belt (71).

7. The high-efficiency stamping die for gear processing according to claim 6, characterized in that: A limiting frame (61) is connected to the highest point of the waste channel (6), and the limiting frame (61) is a rectangular frame.

8. The high-efficiency stamping die for gear processing according to claim 5, characterized in that: A support base is connected to the lower mold (2), a support slide rail (27) is connected to the support base, a movable seat is slidably fitted on the support slide rail (27), and the movable seat is connected to the material discharge rack (5).

9. The high-efficiency stamping die for gear processing according to claim 1, characterized in that: Two forming grooves (24) are provided. The lower mold (2) is provided with an inlet and an outlet. The upper mold (1) is provided with guide components (3) at the positions corresponding to the inlet and the outlet. The guide components (3) include a fixed plate (31), a connecting column (32) and a limiting ring (33). The fixed plate (31) is connected to the upper mold (1). The connecting column (32) is vertically connected to both sides of the fixed plate (31). The limiting ring (33) is connected to the connecting column (32). The limiting ring (33) has a ring groove (331).

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