Punching angle fine adjustment structure in progressive die

Abstract

The utility model discloses a punching angle fine adjustment structure in a progressive die, which comprises a male die and a female die, an upper rotating hole is arranged on the male die in a penetrating manner in the height direction, an upper rotating block rotating in the horizontal direction is rotatably connected in the upper rotating hole, a punching block matched with a punching hole is arranged on the upper rotating block, and the punching block protrudes out of the surface of the upper rotating block. Horizontal rotating holes are formed in the side faces of the upper rotating hole and the lower rotating hole, worms are rotationally connected into the horizontal rotating holes, worm wheels matched with the worms are arranged on the circumferential side faces of the upper rotating block and the lower rotating block, driving mechanisms for driving the worms to rotate are arranged on the worms, and the driving mechanisms are arranged on the outer sides of the male die and the female die in the horizontal direction. An operator does not need to adjust on the punching working face of the die, rotation adjustment in the horizontal direction can be conducted on the punching hole and the punching block on the side face, and operation is more convenient.

Description

Technical Field

[0001] The utility model relates to a die structure, in particular to a punching angle fine-tuning structure in a continuous die. Background Art

[0002] A continuous die refers to a cold stamping die that uses strip-shaped stamping raw materials to complete multiple stamping processes simultaneously on a die using several different workstations in one stamping stroke of the press. Each time the die completes a stamping stroke, the material strip moves a fixed distance until the product is blanked.

[0003] During the continuous stamping process of the motor stator or rotor, by adjusting the number of teeth of the punching sheet, the hole position thereon sometimes needs to be adjusted in angle. The slight adjustment of the hole angle and the reopening of the mold are very costly. In order to solve the above problems, the applicant applied for a Chinese utility model patent on December 31, 2019, and its application number is "201922473813.3". It discloses an angle-adjustable stamping die, which plays the role of a rotating punching die by rotating the rotating arm. The operator needs to enter the center working surface of the mold to adjust the angle of the mold. For continuous molds with larger sizes, adjustment is more inconvenient, and the adjusted angle is not visible, which makes the operation more inconvenient. Utility Model Content

[0004] The utility model aims to provide a punching angle fine-adjusting structure in a continuous die, which has the advantage of convenient operation by adjusting the punching angle on the side.

[0005] The above technical objectives of the present utility model are achieved through the following technical solutions: a punching angle fine-adjustment structure in a continuous die, comprising a punch and a die, the punch and the die being symmetrically arranged in a height direction, the die being provided with a lower rotating hole in the height direction, a lower rotating block rotating in a horizontal direction being rotatably connected in the lower rotating hole, a punching hole being provided in the lower rotating block, the punch being provided with an upper rotating hole in the height direction, an upper rotating block rotating in a horizontal direction being rotatably connected in the upper rotating hole, a punching block cooperating with the punching hole being provided on the upper rotating block, the punching block protruding from the surface of the upper rotating block, a guide column being provided on the punch, a guide hole cooperating with the guide column being provided on the die, a horizontal rotating hole being provided on the side surfaces of the upper rotating hole and the lower rotating hole, a worm being rotatably connected in the horizontal rotating hole, a worm wheel cooperating with the worm being provided on the circumferential side surfaces of the upper rotating block and the lower rotating block, a driving mechanism for driving the worm to rotate being provided on the worm, and the driving mechanism being provided on the outer side of the punch and the die in the horizontal direction.

[0006] Preferably, the driving mechanism includes a toggle block and a rotating window arranged on the side of the die and the punch, the rotating window extends to the position of the horizontal rotating hole, the center of the toggle block is connected to the worm, and the circumferential side of the toggle block protrudes from the side of the die and the punch through the rotating window.

[0007] By adopting the above technical solution, the operator can rotate the dial block through the rotating window on the side, thereby driving the upper rotating block or the lower rotating block to rotate.

[0008] Preferably, the surface of the toggle block is provided with friction stripes, and the friction stripes are evenly distributed around the toggle block.

[0009] By adopting the above technical solution, the friction force is increased, making it easier to rotate the toggle block.

[0010] Preferably, a slot is provided on the toggle block, and the side surfaces of the concave and convex molds are rotatably connected in the horizontal direction with a block that cooperates with the slot.

[0011] By adopting the above technical solution, the card block cooperates with the card slot to limit the rotation of the toggle block, thereby fixing the upper rotating block and the lower rotating block and limiting the horizontal rotation of the upper rotating block and the lower rotating block.

[0012] Preferably, the horizontal rotation hole is provided through the punch and the die, and the driving mechanism includes a slot or a cross slot or a motor provided at the end of the worm, and the motor shaft of the motor is connected to the end of the worm.

[0013] By adopting the above technical solution, the driving mechanism can use a motor to realize automatic rotation when it rotates automatically. At the same time, for both ends of the continuous mold in the length direction, a slotted or cross-slotted worm can be used for rotation.

[0014] Preferably, a rotating bearing cooperating with the worm is provided in the horizontal rotating hole, the die and the punch both include a base, the upper rotating hole and the lower rotating hole are both provided on the base, the base is provided with a fixing groove at the position of the horizontal rotating hole, the fixing groove is formed by the downward depression of the base, and a fixing block is connected to the fixing groove.

[0015] By adopting the above technical solution, the rotating bearing plays a role in providing rotation and connection for the worm, and the fixing block plays a role in closing the fixing groove space.

[0016] Preferably, a first annular groove is provided on the upper surface of the lower rotating block, a second annular groove cooperating with the first annular groove is provided on the base, an annular block is provided between the first annular groove and the second annular groove, and the annular block is concentrically arranged with the lower rotating block.

[0017] By adopting the above technical solution, the first annular groove and the second annular groove cooperate with each other, and the upper rotating block and the lower rotating block are sealed by the annular block, thereby preventing the thrust needle roller bearing at the bottom from being exposed in the continuous mold.

[0018] Preferably, the base is provided with an annular step on the side of the lower rotating hole, the side of the lower rotating block is provided with a third annular groove matching the annular step, and a thrust needle roller bearing is provided between the annular step and the third annular groove.

[0019] By adopting the above technical solution, the annular step serves to provide a location for the thrust needle roller bearing, thereby making the rotation between the lower rotating block and the lower rotating hole smoother.

[0020] Preferably, a ball bushing is provided in the guide hole, a first guide surface inclined outward is provided at an upward end of the guide hole, and a second guide surface inclined inward is provided at the bottom of the guide column.

[0021] By adopting the above technical solution, the ball bushing facilitates the guide post to be inserted into the guide hole, thereby reducing friction between the two.

[0022] To sum up, during use, the worm in the punch or die is driven to rotate by the driving mechanism, and the rotation of the worm drives the worm wheel concentrically arranged on the outside of the rotating block to rotate, thereby causing the upper rotating block and the lower rotating block to rotate in the horizontal direction, thereby adjusting the horizontal rotation of the punch and the punch block. Compared with the prior art, since the driving structure is arranged on the outside of the punch and the die in the horizontal direction, the operator does not need to enter the stamping working surface of the mold, and the punch and the punch block can also be adjusted in the horizontal direction from the side, which makes the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of an embodiment;

[0024] Figure 2 is a cross-sectional schematic diagram of an embodiment;

[0025] Figure 3 yes Figure 2 An enlarged schematic diagram of part A is shown;

[0026] Figure 4 It is a partial cross-sectional schematic diagram of an embodiment;

[0027] In the figure, 1. punch; 11. upper rotating hole; 12. upper rotating block; 13. punch; 14. guide column; 15. second guide surface; 2. die; 21. lower rotating hole; 22. lower rotating block; 23. punch; 24. guide hole; 25. ball bushing; 26. first guide surface; 3. base; 31. horizontal rotating hole; 32. rotating bearing; 33. worm; 34. worm gear; 35. fixing groove; 36. fixing block; 37. annular step; 38. third annular groove; 39. thrust needle roller bearing; 4. rotating window; 41. toggle block; 42. slot; 43. clamping block; 51. first annular groove; 52. second annular groove; 53. annular block. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below with reference to the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0030] Example:

[0031] like Figures 1 to 4 As shown, a structure for fine-tuning the angle of punching 23 in a continuous die includes a punch 1 and a die 2. The punch 1 and the die 2 are symmetrically arranged in the height direction. The punch 1 is connected to the punch 1 fixing plate in the continuous die, and the die 2 is connected to the die 2 fixing plate in the continuous die. The punch 1 and the die 2 in the figure are part of the stamping side hole position in the continuous die, that is, a part of both sides of the stamping strip steel plate die, and are not complete stamping dies 2 and punches 1.

[0032] like Figure 1 and Figure 2 As shown, the female mold 2 located at the bottom is provided with a lower rotating hole 21 in the height direction, and a lower rotating block 22 that rotates in the horizontal direction is rotatably connected in the lower rotating hole 21, and a punching hole 23 is provided in the height direction of the lower rotating block 22; the male mold 1 located at the top is provided with an upper rotating hole 11 in the height direction, and an upper rotating block 12 that rotates in the horizontal direction is rotatably connected in the upper rotating hole 11. A punching block 13 that cooperates with the punching hole 23 is provided at the center of the upper rotating block 12, and the punching block 13 protrudes from the lower surface of the upper rotating block 12.

[0033] like Figure 2 and Figure 4As shown, both the punch 1 and the die 2 include a base 3. At the same time, except for the guide structure, the punching hole 23 and the punch block 13, the punch 1 and the die 2 are mirror-imaged in the height direction. The die 2 and the punch 1 both include a base 3. The upper rotating hole 11 is provided at the bottom of the base 3 of the punch 1, and the lower rotating hole 21 is provided at the top of the base 3 of the die 2. The edge position of the base 3 is recessed inward to form a fixing groove 35. The fixing groove 35 extends along the length direction of the base 3. A fixing block 36 is connected to the fixing groove 35 by bolts. A horizontal groove 35 is provided between the fixing groove 35 and the fixing block 36. The rotating hole 31 and the horizontal rotating hole 31 are respectively arranged on the side surfaces of the upper rotating hole 11 and the lower rotating hole 21, and the fixing groove 35 is located above the horizontal rotating hole 31. A worm 33 is rotatably connected in the horizontal rotating hole 31, and the circumferential side surfaces of the upper rotating block 12 and the lower rotating block 22 are interference-fitted with a worm wheel 34 that cooperates with the worm 33. By rotating the worm 33, the upper rotating block 12 and the lower rotating block 22 can be rotated in the horizontal direction. In this embodiment, a driving mechanism is provided on the worm 33 located on the horizontal outside of the punch 1 and the die 2, and the driving mechanism drives the worm 33 to rotate.

[0034] like Figure 2 and Figure 3 As shown, in order to reduce the collision caused by the error between the punching hole 23 and the punch block 13, and to avoid damage caused by impact in the height direction due to misoperation, a guide column 14 is provided on the punch 1, and the protruding height of the guide column 14 is greater than the height of the punch block 13. A guide hole 24 cooperating with the guide column 14 is provided on the die 2. In order to facilitate the smooth lifting and lowering movement between the guide column 14 and the guide hole 24, a ball sleeve 25 is provided in the guide hole 24, and a first guide surface 26 inclined outward is provided at the upward end of the guide hole 24, and a second guide surface 15 inclined inward is provided at the bottom of the guide column 14.

[0035] The drive mechanism has various settings, such as Figures 2 to 4 As shown, the driving mechanism includes a cylindrical toggle block 41 and a rotating window 4 provided on the side of the die 2 and the punch 1. The rotating window 4 extends horizontally to the position of the horizontal rotating hole 31. The center of the toggle block 41 is fixedly connected to the worm 33. The circumferential side of the toggle block 41 protrudes from the side of the die 2 and the punch 1 through the rotating window 4, so that the operator can toggle it. At the same time, the surface of the toggle block 41 is provided with friction stripes, which are evenly distributed around the toggle block 41. Figure 4 As shown, in order to lock the toggle block 41 , a locking groove 42 is provided on the toggle block 41 , and the side surfaces of the die 2 and the punch 1 are rotatably connected in the horizontal direction with a locking block 43 that cooperates with the locking groove 42 .

[0036] Another arrangement of the drive mechanism is as follows: Figure 1As shown, a horizontal rotating hole 31 is provided axially through the base 3, and rotating bearings 32 are provided at both ends of the base 3. The driving mechanism includes a slot or a cross slot or a motor provided at the end of the worm 33, wherein the slot and the cross slot are provided for the operator to manually rotate the worm 33, or the motor shaft of the motor is connected to the end of the worm 33 through a coupling sleeve to realize the electrically controlled rotation of the worm 33.

[0037] like Figure 2 and Figure 4 As shown, above the lower rotating block 22: the upper surface of the lower rotating block 22 is concave downward to form a first annular groove 51, and the base 3 is provided with a second annular groove 52 on the outside of the first annular groove 51, the first annular groove 51 and the second annular groove 52 cooperate with each other, and an annular block 53 is provided between the first annular groove 51 and the second annular groove 52, and the annular block 53 is concentrically arranged with the lower rotating block 22, and the annular block 53 is fixed with the second annular groove 52 by interference fit, and at the same time, there is a gap between the annular block 53 and the first annular groove 51 for rotation.

[0038] like Figure 2 As shown, below the lower rotating block 22: the base 3 is provided with an annular step 37 on the side of the lower rotating hole 21, and the side of the lower rotating block 22 is provided with a third annular groove 38 that cooperates with the annular step 37, and a thrust needle roller bearing 39 is provided between the annular step 37 and the third annular groove 38.

[0039] Working principle:

[0040] During use, the operator rotates the toggle block 41 from the rotating window 4 on the base 3 on the side of the continuous mold. The toggle block 41 is connected to the worm 33, thereby driving the worm 33 to rotate. Due to the engagement between the worm 33 and the worm wheel 34, the lower rotating block 22 rotates, so that the angle of the punching hole 23 is adjusted in the horizontal direction, and then the card block 43 is locked into the card slot 42 to achieve the locking of the lower rotating block 22; then by rotating the toggle block 41 on the side of the base 3 at the top, the upper rotating block 12 is rotated in the same way, so that the punching hole 23 and the hole block correspond to each other, and at the same time, the guide hole 24 corresponds to the guide column 14, completing the adjustment of the angle of the punching hole 23.

Claims

1. A punching angle fine-tuning structure in a continuous die, comprising a punch (1) and a die (2), characterized in that: The punch (1) and the die (2) are symmetrically arranged in the height direction. The die (2) is provided with a lower rotating hole (21) in the height direction. A lower rotating block (22) that rotates in the horizontal direction is rotatably connected in the lower rotating hole (21). A punching hole (23) is provided in the lower rotating block (22). The punch (11) is provided with an upper rotating hole (11) in the height direction. An upper rotating block (12) that rotates in the horizontal direction is rotatably connected in the upper rotating hole (11). A punching block (13) that cooperates with the punching hole (23) is provided on the upper rotating block (12). The punching block (13) protrudes from the upper rotating block. (12), the male mold (1) is provided with a guide column (14), the female mold (2) is provided with a guide hole (24) matched with the guide column (14), the side surfaces of the upper rotating hole (11) and the lower rotating hole (21) are provided with a horizontal rotating hole (31), a worm (33) is rotatably connected in the horizontal rotating hole (31), the circumferential side surfaces of the upper rotating block (12) and the lower rotating block (22) are provided with a worm wheel (34) matched with the worm (33), the worm (33) is provided with a driving mechanism for driving the worm (33) to rotate, and the driving mechanism is arranged on the outside of the male mold (1) and the female mold (2) in the horizontal direction.

2. The punching angle fine-tuning structure in a continuous die according to claim 1, characterized in that: The driving mechanism comprises a toggle block (41) and a rotating window (4) arranged on the side of the die (2) and the punch (1); the rotating window (4) extends to the position of the horizontal rotating hole (31); the center of the toggle block (41) is connected to the worm (33); and the circumferential side surface of the toggle block (41) protrudes from the side of the die (2) and the punch (1) through the rotating window (4).

3. The punching angle fine-tuning structure in a continuous die according to claim 2, characterized in that: The surface of the toggle block (41) is provided with frictional transverse stripes, and the frictional transverse stripes are evenly distributed around the toggle block (41).

4. The punching angle fine-tuning structure in a continuous die according to claim 3, characterized in that: A clamping groove (42) is provided on the toggle block (41), and the side surfaces of the concave mold (2) and the convex mold (1) are rotatably connected in the horizontal direction with a clamping block (43) that cooperates with the clamping groove (42).

5. The punching angle fine-tuning structure in a continuous die according to claim 1, characterized in that: The horizontal rotation hole (31) is set through the male mold (1) and the female mold (2), and the driving mechanism includes a straight slot or a cross slot or a motor set at the end of the worm (33), and the motor shaft of the motor is connected to the end of the worm (33).

6. The punching angle fine-tuning structure in a continuous die according to claim 2 or 5, characterized in that: A rotating bearing (32) cooperating with a worm (33) is provided in the horizontal rotating hole (31); the concave mold (2) and the convex mold (1) both include a base (3); the upper rotating hole (11) and the lower rotating hole (21) are both provided on the base (3); the base (3) is provided with a fixing groove (35) at the position of the horizontal rotating hole (31); the fixing groove (35) is formed by the base (3) being recessed downward; and a fixing block (36) is connected to the fixing groove (35).

7. The punching angle fine-tuning structure in a continuous die according to claim 6, characterized in that: A first annular groove (51) is provided on the upper surface of the lower rotating block (22), a second annular groove (52) matching the first annular groove (51) is provided on the base (3), an annular block (53) is provided between the first annular groove (51) and the second annular groove (52), and the annular block (53) is concentrically arranged with the lower rotating block (22).

8. The punching angle fine-tuning structure in a continuous die according to claim 7, characterized in that: The base (3) is provided with an annular step (37) on the side of the lower rotating hole (21), the side of the lower rotating block (22) is provided with a third annular groove (38) that matches the annular step (37), and a thrust needle roller bearing (39) is provided between the annular step (37) and the third annular groove (38).

9. The punching angle fine-tuning structure in a continuous die according to claim 1, characterized in that: A ball sleeve (25) is provided in the guide hole (24), an upward end of the guide hole (24) is provided with a first guide surface (26) inclined outwardly, and a bottom of the guide column (14) is provided with a second guide surface (15) inclined inwardly.

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