CN111438256B

CN111438256B - Stamping die device

Info

Publication number: CN111438256B
Application number: CN202010343787.7A
Authority: CN
Inventors: 林权豪
Original assignee: Individual
Current assignee: Wenling Oushang Auto Parts Co ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2021-08-03
Anticipated expiration: 2039-04-28
Also published as: CN111438257B; CN111438257A; CN109940096A; CN111438256A; CN109940096B

Abstract

The invention belongs to the technical field of stamping dies, and particularly relates to a stamping die device which comprises a base, an adjusting mechanism A, a lifting plate, an adjusting mechanism B and the like, wherein the base fixedly arranged on a platform at the discharging side of the stamping die is connected with the lifting plate above the base through the adjusting mechanism A, and the adjusting mechanism A is used for adjusting the height of the lifting plate; the height of the transmission mechanism can be adjusted according to the frequency of the stamping material belt of the stamping die, so that the effective poking distance of the rack B to the material belt through the telescopic rod, the semicircular block and the arc-shaped friction pad under different stamping frequencies is ensured, and the stamping frequency is further ensured to be consistent with the poking frequency of the arc-shaped friction pad to the material belt; the invention effectively avoids the influence on stamping caused by the arching phenomenon of the thin material belt in the stamping process.

Description

Stamping die device

Technical Field

The invention belongs to the technical field of stamping dies, and particularly relates to a stamping die device.

Background

In the existing stamping process, a stamping die is usually adopted to stamp and form a common small hardware part on a metal strip; under the normal condition, the up-and-down movement speed of the punch is high, and the strip to be punched can realize automatic high-speed feeding so as to ensure that a part semi-finished product with a corresponding shape is continuously punched on the punched strip at a high speed; in the stamping process, a pushing type feeding mode is mostly adopted for stamped strips in the prior art; for the stamping strip with a thin thickness, the strip is likely to be arched in the pushing and stamping process, so that the smooth operation of the feeding process is affected, and the arched strip is not beneficial to stamping of the stamping die. In order to solve the problem that the feeding is affected by the fact that the strip is arched upwards, a material pulling device is needed to be designed, the material pulling device is not only required to adapt to the heights of working platforms of different stamping dies, but also required to adapt to the space between holes stamped out by the different stamping dies on the strip, and therefore the material pulling device which is wider in adaptation scene is needed to be designed.

The invention designs a stamping die device to solve the problems.

Disclosure of Invention

In order to solve the defects in the prior art, the invention discloses a stamping die device which is realized by adopting the following technical scheme.

In the description of the present invention, it should be noted that the terms "inside", "below", "upper" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships which the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the equipment or the elements which are referred to must have a specific orientation, be constructed in a specific orientation or be operated, and thus cannot be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

A stamping die device is characterized in that: the lifting device comprises a base, an adjusting mechanism A, a lifting plate, an adjusting mechanism B, a telescopic rod A, a transmission mechanism, a rack A, a rack B, a telescopic rod B, a semicircular block, an arc-shaped friction pad and a pressure spring, wherein the base is connected with the lifting plate above the base through the adjusting mechanism A, and the adjusting mechanism A is used for adjusting the height of the lifting plate; the lifting plate is connected with a transmission mechanism above through an adjusting mechanism B and a telescopic rod A, and the adjusting mechanism B is used for adjusting the height of the transmission mechanism; the transmission mechanism is matched with a rack A fixedly arranged on the lifting plate; one end of the rack B connected with the rectangular surface of the semicircular block through the telescopic rod B slides or swings on the side surface of the transmission mechanism, the arc-shaped friction pad arranged on the cambered surface of the semicircular block is matched with the material belt sliding on the upper end surface of the lifting plate, and the pressure spring is nested on the telescopic rod B.

The transmission mechanism comprises a shell, a gear E, a shaft A, a bevel gear A, a rotary round shell, a bevel gear B, a bevel gear C, a shaft B, a gear F, a gear G, a gear H, a shaft C, a gear I, a slide rail, an L-shaped plate, a gear J, a gear K, a gear ring, a gear L, an electric drive module and a fixing plate, wherein the gear E and the bevel gear A are respectively installed at two ends of the shaft A matched with a rotary hole bearing on the side surface of the shell, and the gear E is meshed with a rack A; the rotary round shell is arranged in the shell through a fixing plate matched with a bearing of the rotary round shell; two concentric shaft holes at the centers of two circular surfaces of the rotary circular shell are respectively matched with a shaft A and a shaft B in a bearing way; the bevel gear A is meshed with two bevel gears B which are arranged on the inner cylindrical surface of the rotary circular shell in an axisymmetric manner; the bevel gear C and the gear F are respectively arranged at two ends of the shaft B and are meshed with the two bevel gears B in the rotary circular shell; the gear F is meshed with two gears G which are arranged on the outer circular surface of the rotary circular shell in an axisymmetric manner; two shafts C symmetrically distributed on the circular surface of the outer side of the rotary circular shell are respectively nested with shaft sleeves, each shaft sleeve is coaxially provided with a gear H and a gear I, and the other ends of the two shafts C are matched with a movable groove on the side surface of the shell; the two gears H are respectively meshed with the two gears G; a shaft with two ends respectively provided with a gear J and a gear K is matched with an L-shaped plate bearing fixedly arranged on a rotary circular shell, and the gear J is simultaneously meshed with the two gears I; the two sliding rails are respectively and symmetrically arranged on one ends of the two shafts C outside the shell; the rack B slides in the two slide rails and is meshed with the gear K; the rack A and the rack B are respectively positioned on the same side of the gear E and the gear K; a gear L is arranged on an output shaft of the electric drive module fixedly arranged on the inner wall of the shell and is meshed with a gear ring arranged on the rotary circular shell; the shell is connected with the adjusting mechanism B.

As a further improvement of the technology, the adjusting mechanism a comprises two thread sleeves a, two screws a, two gears a, a gear B and a plurality of shift levers a, wherein the two thread sleeves a matched with the base bearing are respectively connected with the lifting plate above through the screws a screwed with the thread sleeves a, and the outer cylindrical surfaces of the two thread sleeves a are respectively provided with the gears a; the gear B is arranged on the upper end surface of the base through a shaft and is meshed with the two gears A; a plurality of shift levers A are uniformly distributed on the edge of the upper circular surface of the gear B along the circumferential direction. The shifting lever A is shifted to drive the gear B to rotate, the gear B drives the two thread sleeves A to rotate through the two gears A, and the two thread sleeves A drive the lifting plate to move upwards or downwards through the corresponding screw rods A, so that the height of the lifting plate is adjusted.

As a further improvement of the technology, the adjusting mechanism B comprises a threaded sleeve B, a screw B, a gear C, a gear D and a plurality of shift levers B, wherein the threaded sleeve B matched with the lifting plate bearing is fixedly connected with the upper shell through the screw B screwed with the threaded sleeve B; a gear D arranged on the lifting plate through a shaft is meshed with a gear C fixedly arranged on the outer cylindrical surface of the screw sleeve B; a plurality of shift levers B are uniformly arranged on the edge of the upper circular surface of the gear D along the circumferential direction. The gear D is driven to rotate by stirring the driving lever B, the gear D drives the threaded sleeve B to rotate through the gear C, and the threaded sleeve B drives the transmission mechanism to move upwards or downwards through the screw B, so that the adjusting mechanism and the shaft A on the adjusting mechanism can move upwards or downwards

As a further improvement of the technology, the diameter of the bevel gear a is equal to the diameter of the bevel gear C, so that when the rotary round shell does not rotate in the self-locking state of the electric drive module, the bevel gear E in the transmission structure which is adjusted upwards or downwards to move drives the bevel gear a to rotate through the shaft a, the bevel gear drives the bevel gear C to rotate through the two bevel gears B, and the rotating speed of the bevel gear C is equal to the rotating speed of the bevel gear; the diameter of the gear F is equal to that of the gear H, so that the rotating speeds of the gear F and the two gears H are equal, and the rotating linear speeds of the two gears H and the rotating linear speed of the gear E are equal; the diameter of the gear I is equal to that of the gear J, so that the rotating speed of the gear I is equal to that of the gear J, the rotating speed of the gear J is further equal to that of the gear H, and the rotating speed of the gear K coaxial with the gear J is equal to that of the gear H; the diameter of the gear H is equal to that of the gear K, the gear H with the same rotation angular velocity is equal to that of the gear K, and further the rotation linear velocity of the gear E is equal to that of the gear K, so that the upward or downward movement distance of the gear E along the rack A is equal to the downward or upward relative movement distance of the rack B driven by the gear K relative to the gear K and the gear E, the initial position of the rack B in a vertical state is kept not to move in the process of upward or downward integral height adjustment of the transmission mechanism, the maximum compression amount of the pressure spring is not changed, and the maximum pressure of the arc-shaped friction pad on the lifting plate or the material belt is constant.

As a further improvement of the present technology, the pressure spring is a compression spring.

As a further improvement of the technology, the electric drive module comprises a self-locking motor and a speed reducer, wherein an output shaft of the self-locking motor is connected with an input shaft of the speed reducer, and a gear L is installed on the output shaft of the speed reducer.

The material pulling device is used for pulling the thin material belt.

The rack B is positioned on the central axis of the shaft A, and the distance of the deviation of the axis of the gear E and the axis of the gear K is equal to the sum of half width of the rack B and the radius of the gear K.

According to the invention, the output rotation speed of the electric drive module can be adjusted according to the stamping frequency of the stamping die, so that the shifting of the arc-shaped friction pad to the material belt is consistent with the stamping frequency of the stamping die, and the arc-shaped friction pad starts to shift the material belt just after the stamping of the punch to the material belt is finished; the conflict between the striking of the arc-shaped friction pad to the material belt and the stamping of the stamping die to the material belt is avoided; the rotational speed of the output shaft of the electric drive module is adjusted using known techniques.

Compared with the traditional stamping technology, the height of the transmission mechanism can be adjusted according to the frequency of the stamping belt of the stamping die, so that the effective poking distance of the rack B to the material belt through the telescopic rod, the semicircular block and the arc-shaped friction pad under different stamping frequencies is ensured, and the stamping frequency is further ensured to be consistent with the poking frequency of the arc-shaped friction pad to the material belt; the rack B is provided with scales, and when the vertical distance between the shaft A and the material belt needs to be adjusted according to the stamping frequency, the driving mechanism only needs to be adjusted to move upwards or downwards for a certain distance by shaking the deflector rod B and the position of the driving mechanism is fixed; in the adjusting process, the rack B is still positioned at the position before adjustment, the compression amount of the telescopic rod B is kept unchanged, the maximum pressure of the arc-shaped friction pad on the material belt is unchanged, and the material belt can smoothly pass through the space between the arc-shaped friction pad and the lifting plate; the invention effectively avoids the phenomenon that the thin material belt is arched in the stamping process, and is beneficial to the smooth operation of the stamping work; the invention has simple structure and better use effect.

Drawings

Fig. 1 is an overall schematic diagram of the material pulling device from two viewing angles.

Fig. 2 is a schematic cross-sectional view of the transmission mechanism, the rack a and the rack B.

Fig. 3 is a schematic cross-sectional view of a drawing device.

Fig. 4 is a schematic view showing the combination of the rack B, the pressing spring, the semicircular block, the arc-shaped friction pad and the material belt.

Fig. 5 is a schematic view of the adjustment mechanism a and the adjustment mechanism B.

Fig. 6 is a schematic view of the transmission mechanism.

Fig. 7 is a schematic top sectional view of the transmission mechanism.

Fig. 8 is a schematic side sectional view of the transmission mechanism.

Fig. 9 is a schematic cross-sectional view of the housing and its view.

Fig. 10 is a schematic view of the internal transmission of the transmission mechanism.

Fig. 11 is a schematic view of the internal transmission section of the transmission mechanism.

Fig. 12 is a simplified schematic of the height adjustment of the rack B relative to the axis a.

Number designation in the figures: 1. a base; 2. an adjusting mechanism A; 3. a threaded sleeve A; 4. a screw A; 5. a gear A; 6. a gear B; 7. a deflector rod A; 8. a lifting plate; 9. an adjusting mechanism B; 10. a threaded sleeve B; 11. a screw B; 12. a gear C; 13. a gear D; 14. a deflector rod B; 15. a telescopic rod A; 16. a transmission mechanism; 17. a housing; 18. a movable groove; 19. rotating the hole; 20. a gear E; 21. an axis A; 22. a bevel gear A; 23. rotating the round shell; 24. a bevel gear B; 25. a bevel gear C; 26. a shaft B; 27. a gear F; 28. a gear G; 29. a gear H; 30. an axis C; 31. a gear I; 32. a slide rail; 33. an L-shaped plate; 34. gear J; 35. a gear K; 36. a toothed ring; 37. a gear L; 38. an electric drive module; 39. a fixing plate; 40. a rack A; 41. a rack B; 42. a telescopic rod B; 43. a semicircular block; 44. an arc-shaped friction pad; 45. a pressure spring; 46. a material belt; 47. and a shaft sleeve.

Detailed Description

The drawings are schematic illustrations of the implementation of the present invention to facilitate understanding of the principles of structural operation. The specific product structure and the proportional size are determined according to the use environment and the conventional technology.

As shown in fig. 1, it comprises a base 1, an adjusting mechanism a2, a lifting plate 8, an adjusting mechanism B9, a telescopic rod a15, a transmission mechanism 16, a rack a40, a rack B41, a telescopic rod B42, a semicircular block 43, an arc-shaped friction pad 44, and a pressure spring 45, wherein the base 1 is connected with the lifting plate 8 above through the adjusting mechanism a2, and the adjusting mechanism a2 is used for adjusting the height of the lifting plate 8; as shown in fig. 1 and 3, the lifting plate 8 is connected with the upper transmission mechanism 16 through an adjusting mechanism B9 and a telescopic rod a15, and the adjusting mechanism B9 is used for adjusting the height of the transmission mechanism 16; as shown in fig. 2, the transmission mechanism 16 is engaged with a rack a40 fixed to the lifting plate 8; as shown in fig. 1, 3 and 4, a rack B41, one end of which is connected with the rectangular surface of the semicircular block 43 through an expansion link B42, slides or swings on the side surface of the transmission mechanism 16; as shown in fig. 3 and 4, the arc-shaped friction pad 44 mounted on the arc surface of the semicircular block 43 is matched with the material belt 46 sliding on the upper end surface of the lifting plate 8, and the pressure spring 45 is nested on the telescopic rod B42.

As shown in fig. 6 and 7, the transmission mechanism 16 includes a housing 17, a gear E20, a shaft a21, a bevel gear a22, a rotary circular shell 23, a bevel gear B24, a bevel gear C25, a shaft B26, a gear F27, a gear G28, a gear H29, a shaft C30, a gear I31, a slide rail 32, an L-shaped plate 33, a gear J34, a gear K35, a toothed ring 36, a gear L37, an electric drive module 38 and a fixed plate 39, wherein as shown in fig. 2, 8 and 9, a gear E20 and a bevel gear a22 are respectively mounted at two ends of the shaft a21 in bearing fit with a rotary hole 19 on the side of the housing 17, and the gear E20 is meshed with a rack a 40; as shown in fig. 7 and 8, the rotary circular shell 23 is mounted in the housing 17 through a fixing plate 39 bearing-fitted thereto; two concentric shaft holes at the centers of the two circular surfaces of the rotary circular shell 23 are respectively matched with a shaft A21 and a shaft B26 in a bearing mode; as shown in fig. 8, the bevel gear a22 meshes with two bevel gears B24 installed on the inner cylindrical surface of the rotary cylindrical shell 23 through axisymmetric axes; as shown in fig. 11, a bevel gear C25 and a gear F27 are respectively mounted on both ends of a shaft B26, and the bevel gear C25 is engaged with two bevel gears B24 inside the rotating circular housing 23; as shown in fig. 10 and 11, the gear F27 meshes with two gears G28 that are axisymmetrically mounted on the outer circular surface of the rotary circular shell 23; as shown in fig. 8 and 11, two shafts C30 symmetrically distributed on the outer circular surface of the rotary circular shell 23 are respectively nested with shaft sleeves 47, and each shaft sleeve 47 is coaxially provided with a gear H29 and a gear I31; as shown in fig. 6 and 8, the other ends of the two shafts C30 are engaged with the movable grooves 18 on the side of the housing 17; as shown in fig. 10 and 11, the two gears H29 are respectively meshed with the two gears G28; as shown in fig. 7 and 10, the shaft with the gear J34 and the gear K35 respectively mounted at the two ends is in bearing fit with the L-shaped plate 33 fixedly mounted on the rotary circular shell 23, and the gear J34 is simultaneously meshed with the two gears I31; as shown in fig. 10, two slide rails 32 are symmetrically mounted on one ends of the two shafts C30, which are located outside the housing 17, respectively; as shown in fig. 2 and 3, the rack B41 slides in the two slide rails 32 and is engaged with the gear K35; as shown in fig. 2, rack a40 and rack B41 are located on the same side of gear E20 and gear K35, respectively; as shown in fig. 8 and 10, a gear L37 is mounted on the output shaft of the electric drive module 38 fixedly mounted on the inner wall of the housing 17, and a gear L37 is meshed with a gear ring 36 mounted on the rotary circular shell 23; as shown in fig. 1 and 3, the housing 17 is connected to an adjustment mechanism B9.

As shown in fig. 5, the adjusting mechanism a2 includes two screw sleeves A3, two screws a4, two gears a5, a gear B6, and a plurality of shift levers a7, wherein as shown in fig. 1, the two screw sleeves A3 engaged with the bearings of the base 1 are respectively connected with the lifting plate 8 above through the screws a4 screwed with the screw sleeves a 3583, and the outer cylindrical surfaces of the two screw sleeves A3 are respectively provided with the gears a 5; the gear B6 is mounted on the upper end surface of the base 1 through a shaft, and the gear B6 is meshed with the two gears A5; a plurality of shift levers A7 are uniformly distributed on the edge of the upper circular surface of the gear B6 along the circumferential direction. The shifting lever A7 is shifted to drive the gear B6 to rotate, the gear B6 drives the two thread sleeves A3 to rotate through the two gears A5, and the two thread sleeves A3 drive the lifting plate 8 to move upwards or downwards through the corresponding screws A4, so that the height of the lifting plate 8 is adjusted.

As shown in fig. 5, the adjusting mechanism B9 includes a threaded sleeve B10, a threaded rod B11, a gear C12, a gear D13, and a plurality of shift levers B14, wherein as shown in fig. 1 and 3, a threaded sleeve B10 bearing-fitted with the lifting plate 8 is fixedly connected with the upper housing 17 through a threaded rod B11 screwed with the threaded sleeve B3583; as shown in fig. 1, 2 and 5, a gear D13 mounted on the lifting plate 8 through a shaft is engaged with a gear C12 fixedly mounted on the outer cylindrical surface of a screw sleeve B10; a plurality of shift levers B14 are uniformly arranged on the edge of the upper circular surface of the gear D13 along the circumferential direction. The shifting lever B14 is toggled to drive the gear D13 to rotate, the gear D13 drives the threaded sleeve B10 to rotate through the gear C12, and the threaded sleeve B10 drives the transmission mechanism 16 to move upwards or downwards through the screw B11, so that the adjusting mechanism and the shaft A21 on the adjusting mechanism can move upwards or downwards.

As shown in fig. 8, the diameter of the bevel gear a22 is equal to the diameter of the bevel gear C25, so as to ensure that when the rotary round shell 23 does not rotate in the self-locking state of the electric drive module 38, the gear E20 in the transmission structure which is adjusted upward or downward to move drives the bevel gear a22 to rotate through the shaft a21, and the bevel gear drives the bevel gear C25 to rotate through the two bevel gears B24, so as to ensure that the rotation speed of the bevel gear C25 is equal to the rotation speed of the bevel gear; the diameter of the gear F27 is equal to that of the gear H29, so that the rotating speeds of the gear F27 and the two gears H29 are equal, and further the rotating linear speeds of the two gears H29 and the rotating linear speed of the gear E20 are equal; the diameter of the gear I31 is equal to that of the gear J34, so that the rotating speed of the gear I31 is equal to that of the gear J34, the rotating speed of the gear J34 is equal to that of the gear H29, and the rotating speed of the gear K35 which is coaxial with the gear J34 is equal to that of the gear H29; the diameter of the gear H29 is equal to the diameter of the gear K35, so as to ensure that the rotational angular velocity of the gear H29 is equal to the rotational linear velocity of the gear K35, and further ensure that the rotational linear velocity of the gear E20 is equal to the rotational linear velocity of the gear K35, so as to ensure that the upward or downward movement distance of the gear E20 along the rack a40 is equal to the downward or upward relative movement distance of the rack B41 driven by the gear K35 relative to the gear K35 and the gear E20, so that the initial position of the rack B41 in the vertical state is not moved, the maximum compression amount of the pressure spring 45 is not changed, and the maximum pressure of the arc-shaped friction pad 44 on the lifting plate 8 or the material belt 46 is constant during the upward or downward integral height adjustment of the transmission mechanism 16.

As shown in fig. 4, the pressure spring 45 is a compression spring.

As shown in fig. 8 and 10, the electric drive module 38 includes a self-locking motor and a reducer, wherein an output shaft of the self-locking motor is connected with an input shaft of the reducer, and a gear L37 is mounted on an output shaft of the reducer.

The pulling device of the invention is used for pulling the thin material belt 46.

The rack B41 in the invention is located on the central axis of the shaft A21, and the distance of the deviation of the gear E20 from the axis of the gear K35 is equal to the sum of one-half width of the rack B41 and the radius of the gear K35.

In the invention, the output rotating speed of the electric drive module 38 can be adjusted according to the stamping frequency of the stamping die, so that the shifting of the arc-shaped friction pad 44 to the material belt 46 is consistent with the stamping frequency of the stamping die, and further, the arc-shaped friction pad 44 starts to shift the material belt 46 just after the stamping of the punch to the material belt 46 is finished; the conflict between the striking of the arc-shaped friction pad 44 to the material belt 46 and the stamping of the stamping die to the material belt 46 is avoided; the rotational speed of the output shaft of the electric drive module 38 is regulated using known techniques.

The telescopic rod A15 and the adjusting mechanism B9 limit the rotation of the transmission mechanism 16 around the central axis of the screw rod B11 together, so that the transmission mechanism 16 only moves vertically upwards or downwards without rotating and swinging under the adjustment of the adjusting mechanism B9, and the accurate adjustment of the height of the shaft A21 in the transmission mechanism 16 is effectively realized.

As shown in fig. 12, point D is the maximum pressure point of the arc-shaped friction pad 44 against the material tape 46, and points a and a' are the pressure points at which the arc-shaped friction pad 44 starts or finishes to effectively stir the material tape 46; points B and B' are the natural length points at which the arc-shaped friction pad 44 starts or ends a pressure point for effectively shifting the material belt 46; point C is the natural length point of the arcuate friction pad 44 at which maximum pressure is applied to the strip of material 46. The pressure of the preset arc-shaped friction pad 44 is constant when the strip of material 46 is effectively poked, that is, the compression amount of the telescopic rod is constant when the arc-shaped friction pad 44 starts or finishes effectively poking the strip of material 46, that is, the length of AB or a 'B' is constant.

As shown in fig. 12, when the rack B41 is in the vertical state, the natural length from the axis a21 to the lowest point of the arc-shaped friction pad 44 is OC, the compression amount of the telescopic rod is DC, and the distance from the axis a21 to the upper end surface of the tape 46 is OD; OD = OC-DC; according to the invention, the maximum pressure of the rack B41 on the material belt 46 through the compression rod B, the pressure spring 45, the semicircular block 43 and the arc-shaped friction pad 44 is constant, namely the length of DC is constant, namely the maximum shrinkage of the compression rod B is constant, and the maximum compression of the pressure spring 45 is constant, so that the material belt 46 can smoothly and effectively pass through the arc-shaped friction pad 44 extruded with the compression rod B under different stamping frequencies; when the height of axis a21 is adjusted up or down, the length of the OD changes; the amount of change in the length of the OD is known from the change in the scale on the rack B41 indicated by the pointer on the housing 17 of the transmission 16; after the shaft a21 is adjusted upward or downward to a target height along with the transmission mechanism 16 and fixed, the rack B41 still maintains the position state of the transmission mechanism 16 before adjustment, i.e., does not displace up and down relative to the lifting plate 8; the effective swing radiuses of the rack B41, the telescopic rod B42, the semicircular block 43 and the arc-shaped friction pad 44 can be increased or reduced only by adjusting the position of the transmission mechanism 16, the vertical position of the arc-shaped friction pad 44 in a natural state is not changed, and the maximum pressure of the arc-shaped friction pad 44 on the material belt 46 is ensured to be constant, so that the material belt 46 can still smoothly slide along the upper end face of the lifting plate 8 under the condition that the arc-shaped friction pad 44 with the correspondingly changed effective swing radius is stirred under the condition of different punching frequencies; when the stamping frequency of the stamping die for the material strip 46 is reduced, the distance between the punched holes on the material strip 46 is increased, at this time, the transmission mechanism 16 and the shaft a21 are adjusted upwards to increase the effective swing radius of the arc-shaped friction pad 44 to adapt to the distance between two adjacent punched holes on the material strip 46, and simultaneously, the output frequency of the electric drive module 38 is adjusted to be consistent with the stamping frequency, the distance between the point a and the point a' is increased, so that the distance for the arc-shaped friction pad 44 to move the material strip 46 once is increased, and the frequency for the material pulling device to pull the material strip 46 is consistent with the stamping frequency of the stamping die; when the stamping frequency of the stamping die for the material strip 46 is increased, the distance between the punched holes on the material strip 46 is reduced, at this time, the transmission mechanism 16 and the shaft a21 are adjusted downward to adapt to the distance between two adjacent punched holes on the material strip 46, and simultaneously, the output frequency of the electric drive module 38 is adjusted to be consistent with the stamping frequency, so that the effective swing radius of the rack B41, the telescopic rod B42, the semicircular block 43 and the arc-shaped friction pad 44 swinging around the central axis of the shaft a21 is reduced, the distance between the point a and the point a' is reduced, the distance of the arc-shaped friction pad 44 for once driving the material strip 46 to move is reduced, and further, the frequency of the material pulling device for driving the material strip 46 is consistent with the stamping frequency of the stamping die.

As shown in fig. 12, the scale on rack B41 corresponds to the spacing between adjacent punched holes in strip 46, and the scale on rack B41 indicates the spacing between adjacent punched holes in strip 46 at different punching frequencies. The formula for calculating the scale value on the rack B41 is: (OB-AB) having been replaced with AD + (OC-DC); wherein AB and DC are preset values, OC is equal to OB, thus the value of AD can be calculated; twice the value of AD is equal to the spacing between two adjacent punched holes in the strip of material 46, i.e., the scale value on the rack B41. The preset values of AB and DC are based on the tape 46 condition.

The working process of the invention is as follows: in the initial state, the rack B41 is in the vertical state, the compression lever is compressed, the pressure spring 45 is compressed by the pressing of the lifter plate 8 against the arc-shaped friction pad 44, and the compression amount of the pressure spring 45 is kept constant.

Before the stamping die starts to work, a shifting lever A7 on the gear B6 is shifted, so that the gear B6 rotates, and the gear B6 drives the two thread bushes A3 to rotate in the same direction relative to the base 1 through the two gears A5; the two screw sleeves A3 drive the lifting plate 8 to move upwards or downwards through the screw A4 screwed with the screw sleeves A3; when the lifting plate 8 is adjusted to the level of the lower end face of the material belt 46, the poking rod A7 stops being poked, and the height of the lifting plate 8 after being adjusted is fixed due to the self-locking function of the threaded fit between the screw A4 and the screw sleeve A3.

Then, the height of the transmission mechanism 16 and thus the height of the shaft A21 is adjusted according to the distance between two adjacent punched holes on the material belt 46; when the height of the transmission mechanism 16 is adjusted, the shifting lever B14 is firstly shifted by a hand, the shifting lever B14 drives the gear D13 to rotate, the gear D13 drives the threaded sleeve B10 to rotate on the lifting plate 8 through the gear C12, the threaded sleeve B10 drives the whole transmission mechanism 16 to move upwards or downwards through the screw B11 screwed with the threaded sleeve B3583, and the telescopic rod A15 extends or contracts; the gear E20 and the rack A40 move relatively, and the rack A40 drives the gear E20 to rotate; the gear E20 drives the bevel gear A22 to synchronously rotate through the shaft A21; at this time, because the electric drive module 38 with the self-locking function does not work, the gear L37 arranged on the output shaft of the electric drive module does not rotate under the action of the self-locking electric drive module 38; the gear L37 does not drive the rotating circular shell 23 to rotate; two bevel gears B24 installed in the rotating circular shell 23 do not revolve around the central axis of the shaft a 21; the rotating bevel gear A22 drives the two bevel gears B24 which are meshed with the rotating bevel gears A22 to rotate, and the two bevel gears B24 drive the bevel gear C25 to rotate in the direction opposite to the direction of the bevel gear A22; bevel gear C25 is rotated synchronously via shaft B26 gear F27; the gear F27 drives the two gears H29 to synchronously rotate through the two gears G28 meshed with the gear F27 respectively; the two gears H29 drive the coaxial gear I31 to synchronously rotate through corresponding shafts C30; the two gears I31 simultaneously drive the gear J34 to rotate; the gear J34 drives the coaxial gear K35 to synchronously rotate through the shaft, and the rotation direction of the gear K35 is the same as that of the gear E20; the gear K35 drives the rack B41 engaged with the gear K to move downwards or upwards relative to the transmission mechanism 16 along the slide rail 32; since the diameter of the bevel gear A22 is equal to that of the bevel gear C25, the diameter of the gear F27 is equal to that of the gear H29, the diameter of the gear I31 is equal to that of the gear J34, and the diameter of the gear H29 is equal to that of the gear K35, the gears K35 and E20 which rotate in the same direction are synchronous with each other and rotate at the same linear speed; the rack B41 moves in the opposite direction and at the same speed as the transmission 16, so that when the transmission 16 is adjusted to the target position, the absolute position of the rack B41 is not changed, and the rack B41 only moves relative to the transmission 16 by the actual distance the transmission 16 moves up or down along the rack a 40; the pointer on the shell 17 of the transmission mechanism 16 moves up or down the same distance synchronously with the transmission mechanism 16, and the scale change indicated by the pointer on the rack B41 is equal to the moving distance of the pointer; when the height of the transmission mechanism 16 is adjusted, the rack B41 keeps static, the scale pointer moves relative to the rack B41, the compression amount of the telescopic rod and the pressure spring 45 is constant, and the pressure of the arc-shaped friction pad 44 on the lifting plate 8 or the material belt 46 is constant; the effective swing radius of the rack B41, the telescopic rod B42, the semicircular block 43 and the arc-shaped friction pad 44 swinging around the central axis of the shaft A21 is increased or reduced so as to adapt to the distance between two adjacent punching holes on the material belt 46; the self-locking property of the screw B11 and the screw sleeve B10 enables the height position of the adjusted transmission mechanism 16 to be fixed, and the height adjustment of the shaft a21 and the effective swing radius adjustment of the arc-shaped friction pad 44 are finished.

Because the motor in the electric drive module 38 is a self-locking motor, the rack B41 cannot be swung to generate a certain distance between the arc-shaped friction block and the lifting plate 8, so that the motor can only act on the semicircular block 43 to compress the telescopic rod B42, and a certain distance is generated between the arc-shaped friction block and the lifting plate 8, so that one end of the material belt 46 can enter between the arc-shaped friction pad 44 and the lifting plate 8, and the subsequent movement for pulling the material belt 46 is prepared.

Then, simultaneously switching on the power supplies of the electric driving module 38 and the stamping die, so that the electric driving module 38 and the stamping die work simultaneously; every time of punching, the electric drive module 38 synchronously swings a circle around the central axis of the shaft A21 through a series of transmission belts to drive the rack B41 and the gear K35, the gear E20 is limited by the rack A40 in the process, the bevel gear A22 does not rotate, the gear K35 does not rotate relative to the rack B41, and the rack B41 does not move along the sliding rail 32, so that the effective swing radiuses of the rack B41, the telescopic rod B42, the semicircular block 43 and the arc-shaped friction pad 44 are not changed when swinging a circle around the central axis of the shaft A21; when the arc-shaped friction block and the material belt 46 are mutually extruded, the maximum compression amount of the pressure spring 45 is kept unchanged, so that one-time effective poking of the material belt 46 is smoothly completed, and the material belt 46 can smoothly pass through the space between the arc-shaped friction pad 44 and the lifting plate 8.

The working principle that the electric drive module 38 synchronously swings for one circle around the central axis of the shaft A21 through a series of transmission belt driving racks B41 and a gear K35 is as follows: the electric drive module 38 mounted on the inner wall of the housing 17 drives the gear L37 to rotate; the gear L37 drives the rotary circular shell 23 to rotate through the gear ring 36; the rotary round shell 23 drives two gears H29, two gears I31, two shaft sleeves 47 and two sliding rails 32 to synchronously revolve through two shafts C30, and simultaneously the rotary round shell 23 also drives bevel gears C25 to rotate in the same direction through two bevel gears B24; since the bevel gear a22 remains absolutely stationary, the rotation speed of the bevel gear C25 at this time is equal to 2 times that of the rotating circular shell 23; the bevel gear C25 drives the gear F27 to synchronously rotate through a shaft B26; the gear F27 drives two gears H29 to rotate simultaneously through two gears G28; since the gear H29 revolves with the rotary shell 23 while rotating on its own axis about the corresponding axis C30, and its rotation speed is 2 times its revolution speed, the absolute rotation speed of the gear H29 driven by the gear F27 in common with the rotary shell 23 is equal to the rotation speed of the rotary shell 23; the two gears H29 respectively drive the rotating speed of the corresponding gear I31 to be equal to the rotating speed of the rotary circular shell 23 through the corresponding shaft sleeves 47, the two gears I31 simultaneously drive the rotating speed of the gear J34 to be equal to the revolving speed of the rotary circular shell 23, and the gear K35 and the gear J34 synchronously rotate; the two shafts C30 drive the revolution speed of the rack B41 to be equal to the rotation speed of the gear K35 through the slide rail 32, and the revolution direction of the rack B41 is consistent with the rotation direction of the gear K35, so that when the electric drive module 38 drives the rack B41 to swing around the shaft A21 through a series of transmission belts, the gear K35 rotates at the same rotation speed along with the synchronous revolution of the rack B41 around the shaft A21, further no relative motion between the gear K35 and the rack B41 is ensured, the effective radius of the swing of the rack B41, the telescopic rod B42, the semicircular block 43 and the arc-shaped friction pad 44 around the shaft A21 is not changed, the compression amount of the pressure spring 45 is constant, the maximum extrusion force of the arc-shaped friction pad 44 and the strip 46 is constant, and the strip 46 moving between the lifting plate 8 and the arc-shaped friction pad 44 is ensured to pass smoothly.

When the punching work is finished, the power supply of the electric drive module 38 is cut off, the material belt 46 is taken off, and the relative position of the rack B41 and the shaft A21 and the height of the shaft A21 are additionally adjusted according to the punching frequency of the punching die in the next punching work; the power to the electric drive module 38 is then turned on and off when the electric drive module 38 returns to the upright position via the series of drive belt racks B41, and the electric drive module 38 stops; the pressure spring 45 is compressed to the compression amount of the initial state, and the arc-shaped friction block is extruded with the lifting plate 8; the height of the lifter plate 8 is adjusted next time according to the height of the platform on which the stamping die is loaded with the strip 46.

In conclusion, the invention has the beneficial effects that: the height of the transmission mechanism 16 in the invention can be adjusted according to the frequency of the punching die for punching the material belt 46, so that the effective poking distance of the rack B41 to the material belt 46 through the telescopic rod, the semi-circular block 43 and the arc-shaped friction pad 44 under different punching frequencies is ensured, and the punching frequency is further ensured to be consistent with the poking frequency of the arc-shaped friction pad 44 to the material belt 46; the rack B41 is provided with scales, when the vertical distance between the shaft A21 and the material belt 46 needs to be adjusted according to the stamping frequency, the driving mechanism 16 only needs to be adjusted to move upwards or downwards for a certain distance by shaking the shift lever B14, and the position of the driving mechanism is fixed; in the adjusting process, the rack B41 is still located at the position before adjustment, the compression amount of the telescopic rod B42 is kept unchanged, the maximum pressure of the arc-shaped friction pad 44 on the material belt 46 is unchanged, and the material belt 46 can pass through the space between the arc-shaped friction pad 44 and the lifting plate 8 smoothly; the invention effectively avoids the phenomenon that the thin material belt 46 is arched in the stamping process, and is beneficial to the smooth operation of the stamping work; and the self-locking function of the screw thread screw rod in the adjusting mechanism A2 and the adjusting mechanism B9 enables the positions of the lifting plate 8 and the transmission mechanism 16 with the adjusted heights to be automatically fixed, so that the whole equipment is designed without an accessory auxiliary mechanism for fixing the heights of the lifting plate 8 and the transmission mechanism 16, the structure of the whole equipment is more simplified and compact, and the production cost of the equipment is reduced.

Claims

1. A stamping die device is characterized in that: the lifting device comprises a base, an adjusting mechanism A, a lifting plate, an adjusting mechanism B, a telescopic rod A, a transmission mechanism, a rack A, a rack B, a telescopic rod B, a semicircular block, an arc-shaped friction pad and a pressure spring, wherein the base is connected with the lifting plate above the base through the adjusting mechanism A, and the adjusting mechanism A is used for adjusting the height of the lifting plate; the lifting plate is connected with a transmission mechanism above through an adjusting mechanism B and a telescopic rod A, and the adjusting mechanism B is used for adjusting the height of the transmission mechanism; the transmission mechanism is matched with a rack A fixedly arranged on the lifting plate; a rack B, one end of which is connected with the rectangular surface of the semicircular block through a telescopic rod B, slides or swings on the side surface of the transmission mechanism, an arc-shaped friction pad arranged on the cambered surface of the semicircular block is matched with a material belt sliding on the upper end surface of the lifting plate, and a pressure spring is nested on the telescopic rod B;

the transmission mechanism comprises a shell, a gear E, a shaft A, a bevel gear A, a rotary round shell, a bevel gear B, a bevel gear C, a shaft B, a gear F, a gear G, a gear H, a shaft C, a gear I, a slide rail, an L-shaped plate, a gear J, a gear K, a gear ring, a gear L, an electric drive module and a fixing plate, wherein the gear E and the bevel gear A are respectively installed at two ends of the shaft A matched with a rotary hole bearing on the side surface of the shell, and the gear E is meshed with a rack A; the rotary round shell is arranged in the shell through a fixing plate matched with a bearing of the rotary round shell; two concentric shaft holes at the centers of two circular surfaces of the rotary circular shell are respectively matched with a shaft A and a shaft B in a bearing way; the bevel gear A is meshed with two bevel gears B which are arranged on the inner cylindrical surface of the rotary circular shell in an axisymmetric manner; the bevel gear C and the gear F are respectively arranged at two ends of the shaft B and are meshed with the two bevel gears B in the rotary circular shell; the gear F is meshed with two gears G which are arranged on the outer circular surface of the rotary circular shell in an axisymmetric manner; two shafts C symmetrically distributed on the circular surface of the outer side of the rotary circular shell are respectively nested with shaft sleeves, each shaft sleeve is coaxially provided with a gear H and a gear I, and the other ends of the two shafts C are matched with a movable groove on the side surface of the shell; the two gears H are respectively meshed with the two gears G; a shaft with two ends respectively provided with a gear J and a gear K is matched with an L-shaped plate bearing fixedly arranged on a rotary circular shell, and the gear J is simultaneously meshed with the two gears I; the two sliding rails are respectively and symmetrically arranged on one ends of the two shafts C outside the shell; the rack B slides in the two slide rails and is meshed with the gear K; the rack A and the rack B are respectively positioned on the same side of the gear E and the gear K; a gear L is arranged on an output shaft of the electric drive module fixedly arranged on the inner wall of the shell and is meshed with a gear ring arranged on the rotary circular shell; the shell is connected with the adjusting mechanism B;

the diameter of the gear F is equal to that of the gear H;

the diameter of the gear I is equal to that of the gear J;

the diameter of the gear H is equal to that of the gear K;

the pressure spring is a compression spring, one end of the compression spring is connected with the lower end face of the rack B, and the other end of the compression spring is connected with the rectangular face of the semicircular block.

2. A press die apparatus as claimed in claim 1, wherein: the adjusting mechanism A comprises two screw sleeves A, two screw rods A, two gears A, a gear B and a plurality of shift levers A, wherein the two screw sleeves A matched with the base bearing are respectively connected with an upper lifting plate through the screw rods A screwed with the screw sleeves A, and the outer cylindrical surfaces of the two screw sleeves A are respectively provided with the gears A; the gear B is arranged on the upper end surface of the base through a shaft and is meshed with the two gears A; a plurality of shift levers A are uniformly distributed on the edge of the upper circular surface of the gear B along the circumferential direction.

3. A press die apparatus as claimed in claim 1, wherein: the adjusting mechanism B comprises a threaded sleeve B, a screw B, a gear C, a gear D and a plurality of shift levers B, wherein the threaded sleeve B matched with the lifting plate bearing is fixedly connected with an upper shell through the screw B screwed with the threaded sleeve B; a gear D arranged on the lifting plate through a shaft is meshed with a gear C fixedly arranged on the outer cylindrical surface of the screw sleeve B; a plurality of shift levers B are uniformly arranged on the edge of the upper circular surface of the gear D along the circumferential direction.

4. A press die apparatus as claimed in claim 1, wherein: the transmission ratio of the bevel gear A to the bevel gear C is 1: 1.

5. a press die apparatus as claimed in claim 1, wherein: the electric drive module comprises a self-locking motor and a speed reducer, wherein an output shaft of the self-locking motor is connected with an input shaft of the speed reducer, and a gear L is installed on an output shaft of the speed reducer.

6. A press die apparatus as claimed in claim 1, wherein: the diameter of the gear E is equal to the diameter of the gear K.