CN116786738A - Trimming and punching composite die for workpiece with balance ring - Google Patents
Trimming and punching composite die for workpiece with balance ring Download PDFInfo
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- CN116786738A CN116786738A CN202310622614.2A CN202310622614A CN116786738A CN 116786738 A CN116786738 A CN 116786738A CN 202310622614 A CN202310622614 A CN 202310622614A CN 116786738 A CN116786738 A CN 116786738A
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- 238000004080 punching Methods 0.000 title claims abstract description 76
- 238000009966 trimming Methods 0.000 title claims abstract description 75
- 239000002131 composite material Substances 0.000 title claims abstract description 19
- 238000005242 forging Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 239000010985 leather Substances 0.000 claims abstract description 3
- 238000005520 cutting process Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000013011 mating Effects 0.000 description 11
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The application discloses a trimming and punching composite die for a workpiece with a balance ring, which comprises a bearing seat, a trimming die holder, a die and a top piece assembly, wherein a vertical through guide groove is formed in the die; an upper die plate is arranged above the trimming die holder, and a punch assembly is connected below the upper die plate; the upper die plate is driven by the press slide block to enable the punch head assembly to move downwards to contact with the forging piece on the female die, and the punch head assembly performs continuous-skin punching action; the punch head component is driven by the press slide block to continuously move vertically downwards to cut off flash formed after the continuous leather is punched; the top piece assembly moves downwards along the axial direction vertically penetrating the guide groove in the process of downwards moving the punch head assembly in cooperation with the stroke of the punch head assembly, and the forging piece and the punching connecting skin are ejected when the punch head assembly returns. The die can finish two procedures of trimming and punching in one stroke, saves labor force and equipment kinetic energy, and improves production efficiency.
Description
Technical Field
The application relates to the technical field of dies of automobile production processes, in particular to a trimming and punching composite die for a workpiece of a balance ring.
Background
The balancing ring is an important component part of the motor of the electric automobile, and has the main function of playing a role in dynamic balance through connection with a motor rotor, so that the balancing stability during high-speed rotation can be effectively ensured.
According to the analysis of the structure and the shape of the balance ring, the forging working procedures of the product comprise blanking, heating, upsetting, final forging, punching and trimming. In the existing forming process, punching and trimming are two separate processes, and in the daily production process, two sets of dies, namely a punching die and a trimming die, are needed to be used for respectively completing the two processes, so that equipment and labor cost are increased, production efficiency is reduced, meanwhile, due to repeated positioning for many times, product precision is low, artificial defects are easily caused, product quality is influenced, and the requirement of mass production is difficult to meet.
In order to improve the production efficiency, two modes of compound forging and pressing or progressive forging and pressing are mainly adopted. If a progressive die is adopted, the production efficiency is high, but the die has a complex structure, high requirements on manufacturing precision, long production period, high cost and difficult maintenance. Therefore, it is necessary to provide a trimming and punching composite die for solving the technical problems.
Disclosure of Invention
The application aims to provide a trimming and punching composite die for a workpiece with a balance ring, which solves the technical problems of complex structure, high precision and high requirement of the die in the prior art.
In order to solve the technical problems, the application specifically provides the following technical scheme:
a trimming and punching composite die for a balance ring workpiece comprises the following components.
As a preferable scheme of the application, the die comprises a bearing seat, a trimming die holder arranged on the bearing seat, a die is arranged in the middle of the trimming die holder, a top piece assembly is arranged on the bearing seat at the lower part of the die, a vertical penetrating guide groove is arranged in the die, and the top of the top piece assembly is arranged in the vertical penetrating guide groove;
an upper die plate connected to a press slide block is arranged above the trimming die holder, and a punch assembly is connected in the middle of the lower surface of the upper die plate;
the upper die plate is driven by the press slide block to enable the punch head assembly to move downwards to contact with the forging piece on the female die, and the punch head assembly performs continuous punching action;
the punch assembly is driven by the press slide block to continuously move vertically downwards to cut off flash formed after the continuous leather is punched;
the top piece assembly moves downwards along the axial direction of the vertical through guide groove in a way of matching with the stroke of the punch head assembly in the downward movement process of the punch head assembly, and the forging piece and the punching connecting skin are ejected out when the punch head assembly returns.
As a preferable scheme of the application, the top piece component comprises a guide post, a guide seat is movably sleeved on the guide post, the guide seat is sleeved in the vertical through guide groove, a pressure-bearing spring is sleeved on the guide post, and the top of the pressure-bearing spring is connected with the guide seat;
the top of guide holder is provided with the cooperation groove, the aperture in cooperation groove is the same with the diameter of punching a hole of drift subassembly.
As a preferable scheme of the application, the punch assembly comprises a trimming column, one end of the trimming column is fixedly connected with the upper die plate, the other end of the trimming column is connected with a punching column head, and the bottom edge of the trimming column forms a cutting edge.
As a preferable scheme of the application, the trimming column is provided with the unloading assembly, the unloading assembly comprises an unloading plate sleeved on the trimming column, and the periphery of the unloading plate is connected with the upper template through a guide spring rod.
As a preferable scheme of the application, the trimming column comprises a fixed column body, a rotary column body is arranged on the fixed column body, the fixed column body is sleeved on the punching column head and is in rotary connection with the fixed column body, and the bottom edge of the rotary column body forms the cutting edge;
the side of the rotary cylinder is connected with a driving piece arranged on the stripper plate, and the driving piece is used for driving the rotary cylinder to rotate after the stripper plate contacts the trimming die.
As a preferable scheme of the application, the driving piece comprises a rotary hole arranged on the stripper plate, the rotary cylinder is arranged in the rotary hole, a plurality of stroke guide arc grooves which are arranged in a central symmetry manner are distributed on the side wall of the rotary hole, and a bolt body embedded in the stroke guide arc grooves is arranged on the side wall of the rotary cylinder;
after the stripper plate contacts the trimming female die, the bolt body moves along the travel guide arc groove to drive the rotary cylinder to rotate.
As a preferable mode of the application, the cutting edge comprises a plurality of edge bodies which are arranged at the circumferential edge of the bottom of the rotary cylinder at equal intervals, one side of the edge body is provided with a peak breaking edge, and the peak breaking edge is along the radial direction of the rotary cylinder;
after the stripper plate contacts the trimming female die, the bolt body moves along the travel guide arc groove to drive the rotating cylinder to rotate, and the arc length is larger than that between two adjacent blade bodies.
As a preferable scheme of the application, the top of the guide seat is provided with a round platform valve seat, the round platform valve seat comprises a plurality of valve body units, and the side surfaces of the valve body units, which are close to the guide seat, form the matching grooves;
an expansion ring is arranged on the column body of the punching column head, and the distance between the expansion ring and the end part of the punching column head is smaller than the distance between the blade body and the punching column head;
the punch assembly is driven by the press slide block to move vertically and downwards continuously, so that the expansion ring enters the matching groove, and the waist line cambered surface of the round platform valve seat contacts the inner side surface of the bottom of the forging piece.
As a preferable scheme of the application, guide rods are arranged on the upper templates positioned on two sides of the stripper plate, and guide holes which penetrate through the guide rods and the bearing seats are arranged on the trimming female die.
Compared with the prior art, the application has the following beneficial effects:
the composite die has the advantages that after die matching and debugging are carried out once, after the forging piece is die-forged and formed, a workpiece is placed in the composite tool, trimming and punching can be completed under one stroke of one press, the quality problem of trimming and punching influence is solved, labor force and equipment kinetic energy are saved, and production efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.
FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;
FIG. 2 is a schematic view of the overall structure of a top assembly according to an embodiment of the present application;
FIG. 3 is a schematic diagram of the overall structure of FIG. 1 according to an embodiment of the present application;
FIG. 4 is a schematic view of a trimming die and a structure according to an embodiment of the application;
fig. 5 is a schematic view of a blade structure according to an embodiment of the present application.
Reference numerals in the drawings are respectively as follows:
1-a bearing seat; 2-trimming the die holder; 3-female die; 4-vertically penetrating the guide slot; a 5-top assembly; 6-upper template; 7-a punch assembly; 8-a discharge assembly; 9-a driving member; 10-a guide rod; 11-a guide hole;
51-guide posts; 52-a guide seat; 53-pressure-bearing springs; 54-mating grooves; 55-round platform valve seat; 56-flap units;
71-trimming columns; 72-punching a column head; 73-cutting edge; 74-rotating the column; 75-fixing the column body; 76-breaking peak edges; 77-blade body; 78-expansion ring;
81-a stripper plate; 82-guiding spring rod;
91-a swivel hole; 92-stroke guide arc groove; 93-plug body.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
As shown in fig. 1 to 5, the application provides a trimming and punching composite die for a workpiece of a balance ring, which comprises a bearing seat 1, a trimming die seat 2 arranged on the bearing seat 1, a die 3 arranged in the middle of the trimming die seat 2, a top piece assembly 5 arranged on the bearing seat 1 at the lower part of the die 3, a vertical through guide groove 4 arranged in the die 3, and the top of the top piece assembly 5 arranged in the vertical through guide groove 4. An upper die plate 6 connected to a press slide block is arranged above the trimming die holder 2, and a punch assembly 7 is connected to the middle of the lower surface of the upper die plate 6.
The upper die plate 6 is driven by the press slide block to enable the punch assembly 7 to move downwards to contact with the forging piece on the female die 3, and the punch assembly 7 performs continuous punching action. The punch assembly 7 is driven by the press slide block to continuously move vertically downwards to cut off flash formed after the continuous skin is punched.
The top piece assembly 5 moves downwards along the axial direction vertically penetrating the guide groove 4 in cooperation with the stroke of the punch assembly 7 in the downward movement process of the punch assembly 7, and ejects the forge piece and the punching connecting skin when the punch assembly 7 returns.
The concrete working process is as follows: when the press ram is in the uppermost position (referred to as the initial position of the press drive stroke), the top assembly 5 is in the uppermost position (initial state without external force), at which time the forging is placed onto the die and falls onto the top assembly 5.
When the press drives the slide block to move vertically downwards, the upper template moves downwards. After the forging piece is contacted with the female die 3, the press driving slide block continuously moves downwards, the punch assembly 7 is contacted with the forging piece to punch away the connecting skin, and the connecting skin falls into a cavity formed after the top piece assembly 5 vertically moves downwards along the vertical through guide groove 4 after finishing punching the connecting skin (namely, the vertical through guide groove 4 is positioned above the female die 3, and at the moment, the top piece assembly 5 is compressed downwards to a position with a large stroke). The punch assembly 7 then continues to move down and push against the forging, cutting off the flash.
The press drives the sliding block to return, and the top piece assembly 5 ejects the punched balancing ring and the punched connecting skin, so that the workpiece can be taken conveniently.
In order to realize the working principle of the top component 5, the application provides a specific implementation mode of the top component 5, which comprises a guide post 51, wherein a guide seat 52 is movably sleeved on the guide post 51, the guide seat 52 is sleeved in a vertical penetrating guide groove 4, a pressure-bearing spring 53 is sleeved on the guide post 51, and the top of the pressure-bearing spring 53 is connected with the guide seat 52. The top of the guide 52 is provided with a mating groove 54 (the purpose of the mating groove 54 is to allow the punched strip to correspondingly fall into a cavity formed by the top piece assembly 5 moving vertically downward along the vertically through guide groove 4, and at this time, to fall into the mating groove 54. The mating groove 54 is used for collecting the punched strip), and at this time, the aperture of the mating groove 54 is the same as the punching diameter of the punch assembly 7.
The punch assembly 7 in the application comprises a trimming post 71, one end of the trimming post 71 is fixedly connected with the upper die plate 6, the other end of the trimming post 71 is connected with a punching post head 72, and the bottom edge of the trimming post 71 forms a cutting edge 73.
The application is based on the action of the existing stripper plate, a stripper assembly 8 is arranged on the trimming column 71, the stripper assembly 8 comprises a stripper plate 81 sleeved on the trimming column 71, and the periphery of the stripper plate 81 is connected with the upper die plate 6 through a guide spring rod 82. The upper die plate and the stripper plate 81 move synchronously downward as the press drive ram moves vertically downward. When the stripper plate contact 81 contacts the trim groove base 2, the stripper plate 81 stops moving downward, at which time the spring of the compression guide spring rod 82 begins to compress.
After the stripper plate 81 contacts the upper surface of the trimming die holder 2, when the press driving slide moves vertically downwards, the upper die plate 6 contacts the stripper plate 81 to control the maximum stroke of the punching column head 72, and the guide spring rod 82 is still in the elastic coefficient.
Furthermore, in order to carry out the punching in the rotating direction in the punching process, namely, the axial acting force along the forging is converted into the circumferential acting force along the forging, the purpose of the application is to reduce the damage to the forging main body during the axial punching of the forging, and the application can also adapt to the radian of the balance ring products.
For this purpose, the trimming post 71 comprises a fixing post 75, a rotating post 74 is mounted on the fixing post 75, the fixing post 75 is sleeved on the punching post head 72 and is rotationally connected with the fixing post 75, and a cutting edge 73 is formed at the bottom edge of the rotating post 74. The side edge of the rotating cylinder 74 is connected with a driving piece 9 arranged on the stripper plate 81, and the driving piece 9 is used for driving the rotating cylinder 74 to rotate after the stripper plate 81 contacts the trimming die holder 2.
That is, the stripper plate 81 is not provided with the ability to continue downward at the moment when the stripper plate 81 contacts the trimming die holder 2 as a trigger signal, the driving member 9 starts to drive the rotating cylinder 74 to start rotating, and the cutting blade 73 starts to contact the punching connecting skin (i.e. the flash).
Further, the driving member 9 may be an actively controlled telescopic rod which applies a force in a tangential direction of the rotary cylinder 74 so that the rotary cylinder 74 rotates.
However, in order to utilize the contact action between the trimming slot die 2 and the stripper plate 81 and the continuous stroke action of the fixed cylinder 75, the present application provides a specific embodiment of the driving member 9:
the rotary cylinder 74 is arranged in the rotary hole 91, a plurality of stroke guide arc grooves 92 which are arranged in a central symmetry manner are distributed on the side wall of the rotary hole 91, and a bolt 93 which is embedded in the stroke guide arc grooves 92 is arranged on the side wall of the rotary cylinder 74; wherein, after the stripper plate 81 contacts the trimming die 3, the bolt 93 moves along the travel guide arc groove 92 to drive the rotating cylinder 74 to rotate.
The cutting blade 73 includes a plurality of blade bodies 77 disposed at equal intervals on the circumferential edge of the bottom of the rotary cylinder 74, a peak breaking edge 76 is disposed on one side of the blade body 77, and the peak breaking edge 76 is along the radial direction of the rotary cylinder 74, that is, when the punching operation is performed, the bottom of the peak breaking edge 76 contacts the punched strip first, and after the punched strip (flash) is pierced, the blade body 77 starts to contact the punched strip to perform circumferential cutting (the blade body has a length in the circumferential direction).
The 90 ° angle between the cutting edge 76 and the blade body 77 is smoothly changed, so that the cut part can be guided downward, and the cut punched strip can be guided by the mating groove 54.
After the stripper plate 81 contacts the trimming die 3, the bolt 93 moves along the stroke guide arc groove 92 to drive the rotating cylinder 74 to rotate to an arc length greater than that between two adjacent blade bodies 77, so that the circumferential rotation of the blade bodies 77 is greater than that of the flash to be cut of the forging piece, and thus the complete cutting of the punching connecting skin (flash) can be ensured.
In the technical scheme of current punching and trimming, most be that the sword body (namely the drift) carries out direct punching cutting to overlap or the continuous skin that punches a hole, and this wherein because the forging body is fixed state this moment, then the single face punching process can make the continuous skin bottom that punches a hole and the connection of forging main part take place the deformation in the compression in-process surface to if the connection of continuous skin that punches a hole and forging main part is comparatively inseparable still can tear the main part of forging, obviously can cause the yields decline of forging.
Therefore, in the process of punching, the bottom of the punching connecting piece is supported firstly, and after the punching stroke of the punching connecting piece is reached, the bottom support of the punching connecting piece is lost. This maintains the state of the punched skin during the punching process, i.e., the punching strain of the punched skin is directed radially of the guide 52.
For this, the top of the guide 52 is provided with a circular truncated cone-shaped valve seat 55, the circular truncated cone-shaped valve seat 55 includes a plurality of valve body units 56, and the sides of the plurality of valve body units 56, which are close to the guide 52, form the fitting grooves 54. The column body of the punching column head 72 is provided with an expansion ring 78, and the distance between the expansion ring 78 and the end part of the punching column head 72 is smaller than the distance between the blade body 77 and the punching column head 72. The punch assembly 7 is driven by the press slide block to move vertically and downwards continuously, so that the expansion ring 78 enters the matching groove 54, and the waist line cambered surface of the round platform valve seat 55 contacts the bottom inner side surface of the forging piece.
After the punch assembly 7 completes the punching action of the punched strip, the punch assembly 7 continues to move vertically downward under the drive of the press ram, at which time the expansion ring 78 on the punching stud 72 enters the mating groove 54, and then begins to press the inner wall of the flap unit 56 adjacent to the mating groove 54, so that the flap unit 56 presses toward the bottom inside surface of the punched strip of the forging.
Of course, the flap unit 56 is made of a metal material having deformable properties.
Because the entirety of the plurality of flap units 56 is in the shape of a circular truncated cone, the waist line part of the flap units is designed into an arc line, so that the joint of the bottom of the punching connecting skin and the forge piece can be matched and supported.
Subsequently, the punch assembly 7, while continuing the downward stroke, starts to contact the upper surface of the junction of the punch stripper and forging (i.e., the flash created after the punching as described above), performs the punching operation until the blade 77 has completed the height distance of the flash.
This height distance is obtained from the existing gimbal forces resulting in an average value obtained during production.
In the application, the surface of the blade body 77 close to the circular truncated cone valve seat 55 can be designed into a structure matched with the waist line shape of the circular truncated cone valve seat 55, so that the blade body 77 can not contact with the circular truncated cone valve seat 55 to generate damage even if finishing the punching and cutting stroke of flash, and the matching degree of the blade body and the circular truncated cone valve seat in the punching and cutting action is improved.
Of course, continued compression of the expansion ring 78 against the interface with the flap unit 56 needs to be stopped before the blade body 77 completes the punching action. The mating groove 54 may be designed at both ends, the mating groove 54 in the portion of the frustoconical seat 55 being slightly larger than or equal to the diameter of the piercing post 72, while the mating groove 54 in the portion of the guide seat 52 having a diameter larger than or equal to the outer diameter of the expansion ring 78, the purpose of which is that the radial compression force on the plurality of valve body units 56 has been lost when the expansion ring 78 enters the portion.
Then the middle of the expansion ring 78 is convex, with the convex being smooth to both ends by a degree as shown in figure 4, since the expansion ring 78 has a downward stroke and an upward stroke (restoring the initial position of the punch stud 72).
Further, the application realizes accurate guiding and travel between the trimming die holder 2 and the punch assembly 7, by arranging the guide rods 10 on the upper die plates 6 positioned on both sides of the stripper plate 81, and arranging the guide holes 11 penetrating through the bearing seat 1 with the guide rods 10 on the trimming die 3.
Further, the guide bar 10 may have a multi-stage structure, such as a telescopic bar structure.
The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application, the scope of which is defined by the claims. Various modifications and equivalent arrangements of this application will occur to those skilled in the art, and are intended to be within the spirit and scope of the application.
Claims (9)
1. A trimming and punching composite die for a balance ring workpiece is characterized in that,
the die comprises a bearing seat (1), a trimming die holder (2) arranged on the bearing seat (1), a die (3) is arranged in the middle of the trimming die holder (2), a top piece component (5) is arranged on the bearing seat (1) at the lower part of the die (3), a vertical penetrating guide groove (4) is arranged in the die (3), and the top of the top piece component (5) is arranged in the vertical penetrating guide groove (4);
an upper die plate (6) connected to a press slide block is arranged above the trimming die holder (2), and a punch assembly (7) is connected in the middle of the lower surface of the upper die plate (6);
the upper die plate (6) is driven by a press slide block to enable the punch assembly (7) to move downwards to be in contact with a forging piece on the female die (3), and the punch assembly (7) performs a continuous sheet punching action;
the punch assembly (7) is driven by the press slide block to continuously move vertically downwards to cut off flash formed after the continuous leather is punched;
the top piece assembly (5) is matched with the stroke of the punch head assembly (7) to move downwards along the axial direction of the vertical through guide groove (4) in the downward moving process of the punch head assembly (7), and the forging piece and the punching connecting skin are ejected when the punch head assembly (7) returns.
2. The trimming and punching composite die for the workpiece with the balance ring according to claim 1, wherein,
the top piece assembly (5) comprises a guide post (51), a guide seat (52) is movably sleeved on the guide post (51), the guide seat (52) is sleeved in the vertical through guide groove (4), a pressure-bearing spring (53) is sleeved on the guide post (51), and the top of the pressure-bearing spring (53) is connected with the guide seat (52);
the top of the guide seat (52) is provided with a matching groove (54), and the aperture of the matching groove (54) is the same as the punching diameter of the punch assembly (7).
3. The trimming and punching composite die for the workpiece with the balance ring according to claim 1, wherein,
the punch assembly (7) comprises a trimming column (71), one end of the trimming column (71) is fixedly connected with the upper die plate (6), the other end of the trimming column (71) is connected with a punching column head (72), and a cutting edge (73) is formed at the bottom edge of the trimming column (71).
4. A composite trimming and punching die for a workpiece with a balance ring according to claim 3, wherein,
install on trimming post (71) and unload subassembly (8), unload subassembly (8) including the suit be in stripper (81) on trimming post (71), stripper (81) are connected through direction spring bar (82) all around cope match-plate pattern (6).
5. The trimming and punching composite die for the workpiece with the balance ring according to claim 4, wherein,
the trimming column (71) comprises a fixed column body (75), a rotary column body (74) is arranged on the fixed column body (75), the fixed column body (75) is sleeved on the punching column head (72) and is in rotary connection with the fixed column body (75), and the bottom edge of the rotary column body (74) forms the cutting edge (73);
the side edge of the rotary cylinder (74) is connected with a driving piece (9) arranged on the stripper plate (81), and the driving piece (9) is used for driving the rotary cylinder (74) to rotate after the stripper plate (81) contacts the trimming die (3).
6. The trimming and punching composite die for the workpiece with the balance ring according to claim 5, wherein,
the driving piece (9) comprises a rotary hole (91) arranged on the stripper plate (81), the rotary cylinder (74) is arranged in the rotary hole (91), a plurality of stroke guide arc grooves (92) which are arranged in a central symmetry manner are distributed on the side wall of the rotary hole (91), and a bolt body (93) embedded in the stroke guide arc grooves (92) is arranged on the side wall of the rotary cylinder (74);
after the stripper plate (81) contacts the trimming die (2), the bolt body (93) moves along the travel guide arc groove (92) to drive the rotating cylinder (74) to rotate.
7. The trimming and punching composite die for the workpiece with the balance ring according to claim 6, wherein,
the cutting edge (73) comprises a plurality of edge bodies (77) which are arranged at the circumferential edge of the bottom of the rotary cylinder (74) at equal intervals, a peak breaking edge (76) is arranged on one side of the edge body (77), and the peak breaking edge (76) is along the radial direction of the rotary cylinder (74);
after the stripper plate (81) contacts the trimming die holder (3), the bolt body (93) moves along the travel guide arc groove (92) to drive the rotating cylinder (74) to rotate, and the arc length is larger than that between two adjacent blade bodies (77).
8. The trimming and punching composite die for the workpiece with the balance ring according to claim 7, wherein,
the top of the guide seat (52) is provided with a circular truncated cone valve seat (55), the circular truncated cone valve seat (55) comprises a plurality of valve body units (56), and the side surfaces, close to the guide seat (52), of the valve body units (56) form the matching grooves (54);
an expansion ring (78) is arranged on the column body of the punching column head (72), and the distance between the expansion ring (78) and the end part of the punching column head (72) is smaller than the distance between the blade body (77) and the punching column head (72);
the punch assembly (7) is driven by the press slide block to move vertically downwards, so that the expansion ring (78) enters the matching groove (54) to enable the waist line cambered surface of the round platform valve seat (55) to contact the inner side surface of the bottom of the forging piece.
9. The trimming and punching composite die for the workpiece with the balance ring according to claim 8, wherein,
the upper templates (6) positioned on two sides of the stripper plate (81) are respectively provided with a guide rod (10), and the trimming female die (3) is provided with guide holes (11) which are connected with the guide rods (10) and penetrate through the bearing seats (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310622614.2A CN116786738A (en) | 2023-05-30 | 2023-05-30 | Trimming and punching composite die for workpiece with balance ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310622614.2A CN116786738A (en) | 2023-05-30 | 2023-05-30 | Trimming and punching composite die for workpiece with balance ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116786738A true CN116786738A (en) | 2023-09-22 |
Family
ID=88043191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310622614.2A Pending CN116786738A (en) | 2023-05-30 | 2023-05-30 | Trimming and punching composite die for workpiece with balance ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116786738A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117381455A (en) * | 2023-12-07 | 2024-01-12 | 山西天宝集团有限公司 | Production device and method for variable pitch flange of wind power main machine |
-
2023
- 2023-05-30 CN CN202310622614.2A patent/CN116786738A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117381455A (en) * | 2023-12-07 | 2024-01-12 | 山西天宝集团有限公司 | Production device and method for variable pitch flange of wind power main machine |
| CN117381455B (en) * | 2023-12-07 | 2024-02-23 | 山西天宝集团有限公司 | Production device and method for variable pitch flange of wind power main machine |
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