CN115555456A - Detain some stop gear - Google Patents
Detain some stop gear Download PDFInfo
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- CN115555456A CN115555456A CN202211151190.8A CN202211151190A CN115555456A CN 115555456 A CN115555456 A CN 115555456A CN 202211151190 A CN202211151190 A CN 202211151190A CN 115555456 A CN115555456 A CN 115555456A
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- insert
- plate
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- punch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/04—Stamping using rigid devices or tools for dimpling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a fastening point limiting mechanism, wherein an upper liner plate is connected with a punch fixing plate, a first through hole is formed in the upper liner plate, the first through hole extends downwards and penetrates through the punch fixing plate, a first insert and a second insert are arranged in the first through hole in a sliding manner, the upper end and the lower end of the first insert are respectively abutted against a top block and the second insert, when the punch moves downwards, the lower end of the top block is abutted against the upper end of the upper liner plate, a plurality of fastening point punches with equal heights are circumferentially arranged in the second insert at equal intervals, a limiting plate is fixedly connected on a discharging plate seat, the upper seat is in threaded connection with a plurality of equal-height screws along the circumferential equal intervals, each equal-height screw is sleeved with a spring, the two ends of each spring are respectively abutted against the upper seat and the top block, a gap with a distance D exists between the second insert and the limiting plate, and when the continuous downward depth of the second insert is more than or equal to the gap, the lower end of the second insert is abutted against the limiting plate; the technical problem that a die is damaged due to the fact that a buckling point convex die penetrates through a material belt due to the fact that a bottom dead center of a punch is unstable in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a buckling point limiting mechanism.
Background
Stamping is a press working method in which a die mounted on a press machine is used to apply pressure to a material at room temperature to cause separation or plastic deformation thereof, thereby obtaining a desired part. In the production process of some products including the fastening point of the variable frequency air conditioner rotor, a convex hull needs to be punched on the product by using a stamping die. Most of the existing punching modes adopt a button point male die, a punching depth is preset, the button point male die is driven by a punch to move downwards, and in general, the button point male die can just punch a convex hull on a product after moving downwards to the punching depth. However, after the punch press drives the buckling point male die to move downwards to reach the preset punching depth, the buckling point male die can continue to move downwards due to the fact that the bottom dead center of the punch press is unstable, the buckling point male die penetrates through the material belt, waste materials of products block the buckling point male die, the edge of the buckling point male die is broken, and even the breaking point male die is broken, and the die is damaged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a buckling point limiting mechanism which can prevent a mould from being damaged due to the fact that a buckling point male mould descends to exceed a preset depth caused by instability of a bottom dead center of a punch press.
In order to solve the technical problems, the invention provides a fastening point limiting mechanism which comprises an upper die base, wherein a top block, an upper padding plate, a punch fixing plate, a limiting plate and a discharging plate base are sequentially arranged below the upper die base, the upper padding plate is connected with the punch fixing plate, a first through hole is formed in the upper padding plate, the first through hole extends downwards and penetrates through the punch fixing plate, a first insert and a second insert are arranged in the first through hole in a sliding mode, the sliding directions of the first insert and the second insert are vertical, the upper end and the lower end of the first insert are respectively abutted against the lower end of the top block and the upper end of the second insert, when punching is carried out downwards, the lower end of the top block is abutted against the upper end of the upper padding plate, the lower end of the second insert is lower than the lower end of the punch fixing plate, and a limiting component for preventing the second insert from moving downwards relative to the punch fixing plate is arranged on the punch fixing plate, the lower end of the buckling point male die penetrates through the second insert and is exposed below the second insert, the lower end of the buckling point male die penetrates through a limiting plate and is used for punching a convex hull on a product, the limiting plate is fixedly connected to a discharging plate seat, the upper die seat is in threaded connection with a plurality of equal-height screws at equal intervals along the circumferential direction, a plurality of avoiding grooves are formed in the ejector block, the lower end of each equal-height screw is located in one of the avoiding grooves, a spring is sleeved on each equal-height screw, two ends of each spring respectively abut against the upper die seat and the ejector block, when the second insert moves downwards to a preset maximum stroke, a gap with a distance of D exists between the second insert and the limiting plate, and when the continuous descending depth of the second insert is larger than or equal to the gap, the lower end of the second insert abuts against the limiting plate.
After adopting the structure, the buckling point limiting mechanism has the following advantages: when the punch press punches, the top block, the upper padding plate, the punch fixing plate, the first insert and the second insert simultaneously descend, a gap D is reserved between the second insert and the limiting plate in a normal punching state, when the second insert further descends due to instability of a bottom dead center of the punch press, the lower end of the second insert abuts against the limiting plate, due to fixation of the limiting plate, the limiting plate exerts an upward reaction force on the second insert, so that the second insert drives the buckling point punch to move upwards, meanwhile, the second insert drives the first insert to move upwards and jack up the top block, so that springs on the equal-height screws are compressed, the compressed springs exert a downward elastic force on the top block, the first insert, the second insert and the buckling point punch to move downwards, so that the second insert abuts against the limiting plate again, therefore, the limiting plate limits the maximum distance of the buckling point descending punch, even if the descending distance of the buckling point punch exceeds a preset maximum stroke due to instability of the bottom dead center, the limiting plate limits the maximum distance of the buckling point punch press, the maximum distance of the buckling point punch press cannot cross the limiting plate, and the material strap of the second insert cannot be damaged by the impact of the springs; in addition, the equal high setting of a plurality of knot point terrace die is on the second mold insert, consequently, no matter be at the descending in-process of second mold insert, still the in-process that goes up after second mold insert and the limiting plate butt, the removal of a plurality of knot point terrace die all synchronous and equidistance, the convex closure of same degree of depth is gone out in the time of punching press once, and when punching press next time, the height of a plurality of knot point terrace die still can keep unanimous.
As an improvement, a plurality of second through holes are equidistantly arranged on the second insert along the circumferential direction, each second through hole comprises a circular hole and a third through hole which are coaxially arranged, each circular hole is communicated with the corresponding third through hole and is positioned above the corresponding third through hole, the diameter of each circular hole is larger than that of each third through hole, the section of each third through hole is a major arc circle, the upper end of each buckling point male die is circumferentially provided with a ring convex part, the diameter of each ring convex part is larger than that of each buckling point male die, the section of each buckling point male die is a major arc circle matched with the corresponding third through hole, each buckling point male die is inserted into the corresponding third through hole, the ring convex parts are arranged in the circular holes, the lower ends of the ring convex parts abut against the bottom surfaces of the circular holes, and the upper ends of the buckling point male dies abut against the lower end surfaces of the first insert; by adopting the structure, the buckling point male die is inserted into the third through hole, the buckling point male die is radially limited by the third through hole, the third through hole with the section being a major arc circle and the buckling point male die can also prevent the buckling point male die from rotating, the lower end of the annular convex part is abutted against the bottom surface of the circular hole, when the second insert moves upwards, the buckling point male die can be jacked upwards by utilizing the bottom surface of the circular hole, so that the buckling point male die and the second insert synchronously move, and the connection mode also facilitates the installation and the disassembly between the buckling point male die and the second insert, and the replacement of the buckling point male die is convenient.
As an improvement, a first gasket is sleeved on the buckling point male die, the upper end of the first gasket is abutted against the lower end of the annular convex part, and the lower end of the annular convex part is abutted against the bottom surface of the circular hole through the first gasket; by adopting the structure, the lower end of the annular convex part can be prevented from being in direct contact with the bottom surface of the round hole by the first gasket, and the upper end of the buckling point male die can be guaranteed to be abutted against the lower end of the first insert by replacing the first gaskets with different thicknesses.
As an improvement, the limiting assembly comprises a plurality of pressing plates and fixing bolts, a groove is formed in the peripheral wall of the male die at each buckling point, the upper end face of each groove is flush with the lower end of the second insert, each pressing plate is fixed on the lower end face of the male die fixing plate through the fixing bolts, and the upper end face of each pressing plate is abutted against the lower end face of the second insert and the upper end face of each groove; by adopting the structure, the pressing plate is connected to the lower end face of the male die fixing plate and is abutted against the lower end face of the second insert, the second insert can be prevented from moving downwards relative to the male die fixing plate synchronously, the second insert does not move upwards relative to the male die fixing plate, the pressing plate is also abutted against the upper end face of the groove, the pressing plate directly vertically limits the buckling point male dies, the buckling point male dies are also guaranteed not to move downwards relative to the second insert, and the equal heights of the buckling point male dies are further guaranteed regardless of ascending or descending.
As an improvement, a plurality of pressure plates are integrally formed; by adopting the structure, the fastening point male die is arranged along the circumferential direction of the second insert at equal intervals, so that all the fixing bolts on the integrally-formed pressing plate can be distributed along the circumferential direction, and compared with an independent pressing plate arranged on one side of each fixing bolt, the integrally-formed pressing plate is more stably connected with the male die fixing plate.
As an improvement, each equal-height screw is sleeved with a second gasket, the second gasket is positioned below the spring, and the lower end of the spring is abutted against the top block through the second gasket; by adopting the structure, because the two ends of the spring are not level, the lower end of the spring is abutted against the top block through the second gasket, the spring can be stressed uniformly and is not easy to distort, the second insert which moves upwards can smoothly move downwards, the compression amount of the spring in the initial state can be changed by replacing the second gaskets with different thicknesses, and the elasticity of the spring is ensured to be enough to enable the second insert which moves upwards to move downwards.
As a refinement, the dimension D of the gap ranges from 0.01mm to 0.03mm; by adopting the structure, if the clearance is too large, the buckling point convex die penetrates through the material belt in a punching mode before the second insert abuts against the limiting plate, if the clearance is too small, the second insert still frequently collides with the limiting plate in an abutting mode under the condition that the buckling point convex die cannot penetrate through the material belt, and the service lives of the second insert, the limiting plate and the spring can be shortened.
As an improvement, the second insert comprises an insert body and a protruding part, the protruding part is arranged in the middle of the lower end face of the insert body, the buckling point convex dies are arranged on the insert body, and the lower end face of the protruding part is used for abutting against the limiting plate; by adopting the structure, the protruding part arranged in the middle of the insert body is abutted against the limiting plate, so that the limiting plate can uniformly apply force to the reaction force applied by the second insert, the equal heights of the convex dies at the buckling points are further ensured when the convex dies go up or down, and the contact between the convex die fixing plate and the limiting plate is also avoided.
As an improvement, in the projection on the horizontal plane, a contour screw is arranged between every two adjacent buckling point convex dies; by adopting the structure, the equal-height screws are arranged between the buckling point convex dies, and correspondingly, the springs are also arranged between the buckling point convex dies, so that the stress formed by applying the elastic force of the springs on the top block can not directly act on the buckling point convex dies, but is uniformly conducted through the first insert and the second insert, and the equal height of the buckling point convex dies is further ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic structural view of the dotting punch of the present invention.
Fig. 3 is a schematic structural view of the upper cushion plate and the punch retainer plate portion in the present invention.
Fig. 4 is a top view of a second insert and a dotting punch according to the present invention.
FIG. 5 is a schematic diagram of the distribution of the convex molds of the buckling points and the equal-height screws in the horizontal plane projection of the invention.
Reference numerals: 1. an upper die holder; 2. a top block; 3. a base plate is arranged; 4. a male die fixing plate; 5. a limiting plate; 6. a discharge plate seat; 7. a first through hole; 8. a first insert; 9. a second insert; 91. an insert body; 92. a protrusion; 10. dotting a convex die; 11. an equal-height screw; 12. an avoidance groove; 13. a spring; 14. a circular hole; 15. a third through hole; 16. a ring protrusion; 17. a first gasket; 18. pressing a plate; 19. fixing the bolt; 20. a groove; 21. a second gasket; 22. and a regulating block.
Detailed Description
The following describes a buckling point limiting mechanism of the present invention in detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a fastening point limiting mechanism includes an upper die base 1, a top block 2, an upper padding plate 3, a punch retainer 4, a limiting plate 5 and a discharging plate base 6 are sequentially arranged below the upper die base 1, the upper padding plate 3 is connected with the punch retainer 4, and in this embodiment, the upper padding plate 3 is connected with the punch retainer 4 through bolts; the upper padding plate 3 is provided with a first through hole 7, the first through hole 7 extends downwards and penetrates through the punch fixing plate 4, a first insert 8 and a second insert 9 are arranged in the first through hole 7 in a sliding mode, the sliding directions of the first insert 8 and the second insert 9 are both vertical directions, the first through hole 7 in the upper padding plate 3 and the first through hole 7 in the punch fixing plate 4 are both circular and have the same diameter, correspondingly, the first insert 8 and the second insert 9 are also circular and have the same diameter, in addition, the thickness of the first insert 8 is the same as that of the upper padding plate 3, and the thickness of the second insert 9 is the same as that of the punch fixing plate 4; the upper end and the lower end of the first insert 8 respectively abut against the lower end of the top block 2 and the upper end of the second insert 9, when the punch press moves downwards, the lower end of the top block 2 abuts against the upper end of the upper backing plate 3 and the lower end of the second insert 9 is lower than the lower end of the punch fixing plate 4, in this embodiment, the top block 2 is also circular and has a diameter larger than the first through hole 7, the second insert 9 comprises an insert body 91 and a protrusion 92, the protrusion 92 is arranged in the middle of the lower end face of the insert body 91 and is integrally formed with the insert body 91, the lower end face of the protrusion 92 is used for abutting against the limiting plate 5, namely, when the punch press moves downwards, the lower end face of the protrusion 92 is lower than the lower end of the punch fixing plate 4, and when the punch press moves downwards, the top block 2 moves downwards, because the lower end of the top block 2 abuts against the upper end faces of the first insert 8 and the upper backing plate 3, the upper backing plate 3 is connected with the punch fixing plate 4, and the lower end face of the first insert 8 abuts against the second insert 9, so that the top block 2, the upper backing plate 3, the punch fixing plate 4, the first insert 8 and the second insert 9 move downwards synchronously.
As shown in fig. 1, a limiting assembly for preventing the second insert 9 from moving downward relative to the punch holder 4 is arranged on the punch holder 4, a plurality of equal-height buckling point punches 10 are circumferentially arranged in the second insert 9 at equal intervals, the lower ends of the buckling point punches 10 penetrate through the second insert 9 and are exposed below the second insert 9, the lower ends of the buckling point punches 10 penetrate through a limiting plate 5 and are used for punching a convex hull on a product, the limiting plate 5 is fixedly connected to a discharging plate seat 6, and the lower ends of the buckling point punches 10 also need to penetrate through the discharging plate seat 6 during punching; the upper die base 1 is connected with a plurality of equal-height screws 11 along the circumferential direction at equal intervals in a threaded manner, the thread end of each equal-height screw 11 is arranged upwards, a plurality of avoiding grooves 12 are formed in the ejector block 2, the lower end of each equal-height screw 11 is positioned in one of the avoiding grooves 12, a spring 13 is sleeved on each equal-height screw 11, the upper end and the lower end of each spring 13 are respectively abutted against the upper die base 1 and the ejector block 2, a second gasket 21 is sleeved on each equal-height screw 11, the second gasket 21 is positioned below the spring 13, and the lower end of the spring 13 is abutted against the ejector block 2 through the second gasket 21; in this embodiment, the lower end of the upper die holder 1 abuts against the upper end of the upper backing plate 3, the lower end of the upper die holder 1 is provided with a mounting groove, the ejector block 2 is located in the mounting groove, and a margin for the ejector block 2 to move upwards is reserved between the upper end of the ejector block 2 and the mounting groove.
As shown in fig. 5, in the projection on the horizontal plane, one equal-height screw 11 is disposed between every two adjacent dotting punches 10, and a virtual circle formed by connecting the axes of the plurality of dotting punches 10 is coaxial with a virtual circle formed by connecting the axes of the plurality of equal-height screws 11, so that the stress formed by applying the elastic force of the spring 13 to the top block 2 does not directly act on the dotting punches 10, but is uniformly conducted through the first insert 8 and the second insert 9, thereby further ensuring that the height of the dotting punches 10 is equal, and the two virtual circles are coaxial so that the dotting punches 10 and the equal-height screws 11 are disposed adjacently in the horizontal projection, thereby further making the conduction of the spring 13 more uniform; in this embodiment, the number of the dotting male dies 10 and the equal-height screws 11 is six.
When the second insert 9 moves downward to a preset maximum stroke, as shown in fig. 1, a gap with a distance D exists between the second insert 9 and the limiting plate 5, that is, a gap between the lower end surface of the protrusion 92 and the limiting plate 5 is D, such a stamping state is a normal stamping state, the second insert 9 is not in contact with the limiting plate 5, the buckling point punch 10 can normally punch a qualified bump on the product, when the depth of the second insert 9 continuing to move downward is greater than or equal to the gap, that is, when the second insert 9 continues to move downward due to instability of the bottom dead center of the punch press, the lower end of the second insert 9 abuts against the limiting plate 5, because the limiting plate 5 is fixed, the limiting plate 5 applies an upward reaction force to the second insert 9, so that the second insert 9 drives the buckling point punch 10 to move upward, and simultaneously the second insert 9 drives the first insert 8 to move upward and lift the top block 2, so that the spring 13 on the high screw 11 is compressed, the compressed spring 13 applies a downward elastic force to the top block 2, the first insert 8, the second insert 9, the buckling point punch press cannot move upward and the maximum buckling point 10 of the limiting plate 5 cannot further limits the distance of the limiting plate 5, so that the punch press cannot be further, and the maximum buckling point punch press cannot be reached by the maximum buckling point punch press, and the maximum buckling point 10, so that the maximum buckling point of the limiting plate 5 cannot be reached by the limiting plate 5, and the maximum buckling point punch press; in addition, the plurality of buckling point male dies 10 are arranged on the second insert 9 in equal heights, so that the plurality of buckling point male dies 10 move synchronously and equidistantly in the descending process of the second insert 9 or in the ascending process of the second insert 9 after being abutted against the limiting plate 5, the convex hulls with the same depth are punched out in one punching process, and the heights of the plurality of buckling point male dies 10 can still be kept consistent in the next punching process.
If the clearance D is too large, the buckling point punch 10 already punches through the material belt before the second insert 9 abuts against the limiting plate 5, and if the clearance D is too small, the second insert 9 still frequently abuts against and collides with the limiting plate 5 under the condition that the buckling point punch 10 cannot punch through the material belt, the service lives of the second insert 9, the limiting plate 5 and the spring 13 are reduced, and therefore the range of the dimension D of the clearance is limited to 0.01mm to 0.03mm; in addition, as shown in fig. 1, can dismantle on the board seat of unloading 6 and be connected with regulating block 22, and regulating block 22 is located the board seat of unloading 6, limiting plate 5 is connected to regulating block 22 upper end, limiting plate 5 passes through regulating block 22 and 6 fixed connection of board seat of unloading, also be connected for dismantling between regulating block 22 and the limiting plate 5, when needs are according to actual production demand spacing D, the regulating block 22 of different thickness is dismantled and changed to the accessible, and need not to change whole limiting plate 5, not only satisfy different production demands, and the cost is reduced.
As shown in fig. 1 and fig. 3, a plurality of second through holes are equidistantly arranged on the second insert 9 along the circumferential direction, each second through hole includes a circular hole 14 and a third through hole 15, which are coaxially arranged, the upper end of each circular hole 14 penetrates through the second insert 9, each circular hole 14 is communicated with the corresponding third through hole 15 and is located above the corresponding third through hole 15, the diameter of each circular hole 14 is larger than that of the corresponding third through hole 15, as shown in fig. 4, the cross section of each third through hole 15 is a major arc circle, as shown in fig. 2 and fig. 4, a circular convex portion 16 is circumferentially arranged at the upper end of each buckling point punch 10, the diameter of each circular convex portion 16 is larger than that of each buckling point punch 10, the cross section of each buckling point punch 10 is a major arc circle matched with the corresponding third through hole 15, each buckling point punch 10 is inserted into the corresponding third through hole 15, the circular convex portions 16 are arranged in the circular holes 14, the lower ends of the circular convex portions 16 abut against the bottom surfaces of the circular holes 14, and the upper ends of the buckling point punches 10 abut against the lower end surfaces of the first insert 8. The dotting punch 10 is arranged on the insert body 91, namely the second through holes are arranged on the insert body 91, the first gasket 17 is sleeved on the dotting punch 10, the upper end of the first gasket 17 abuts against the lower end of the ring convex part 16, and the lower end of the ring convex part 16 abuts against the bottom surface of the round hole 14 through the first gasket 17.
As shown in fig. 1, the limiting assembly includes a plurality of pressing plates 18 and fixing bolts 19, as shown in fig. 2, a groove 20 is formed in the peripheral wall of each fastening point male die 10, the upper end surface of the groove 20 is flush with the lower end of the second insert 9, each pressing plate 18 is fixed on the lower end surface of the male die fixing plate 4 through the fixing bolt 19, the upper end surface of each pressing plate 18 abuts against the lower end surface of the second insert 9 and the upper end surface of the groove 20, the pressing plates 18 are integrally formed, and the fastening point male dies 10 are arranged along the circumferential direction of the second insert 9 at equal intervals, so that the fixing bolts 19 on the integrally formed pressing plates 18 can also be distributed along the circumferential direction, and compared with the independent pressing plates 18 arranged on one side of the fixing bolts 19, the connection between the integrally formed pressing plates 18 and the male die fixing plate 4 is more stable.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Claims (9)
1. The buckling point limiting mechanism is characterized by comprising an upper die base (1), wherein a top block (2), an upper base plate (3), a punch fixing plate (4), a limiting plate (5) and a discharging plate base (6) are sequentially arranged below the upper die base (1), the upper base plate (3) is connected with the punch fixing plate (4), a first through hole (7) is formed in the upper base plate (3), the first through hole (7) extends downwards and penetrates through the punch fixing plate (4), a first insert (8) and a second insert (9) are slidably arranged in the first through hole (7), the sliding directions of the first insert (8) and the second insert (9) are vertical, the upper end and the lower end of the first insert (8) respectively abut against the lower end of the top block (2) and the upper end of the second insert (9), when stamping is performed, the lower end of the top block (2) abuts against the upper end of the upper base plate (3), the lower end of the second insert (9) is lower than the lower end of the fixing plate (4), a plurality of equal-distance buckling point limiting punch fixing assemblies (10) are arranged on the upper base plate (4), and the second insert (9) is used for preventing the punch fixing plate (9) from moving downwards, and the lower end of the second insert (9) from being exposed, the limiting point limiting assembly (10) penetrates through the lower end of the punch fixing plate (10), and the punch fixing plate (10) And the lower end of the buckling point male die (10) penetrates through the limiting plate (5) and is used for punching a convex closure on a product, the limiting plate (5) is fixedly connected to the discharging plate seat (6), the upper die seat (1) is in threaded connection with a plurality of equal-height screws (11) at equal intervals along the circumferential direction, a plurality of avoiding grooves (12) are formed in the ejector block (2), the lower end of each equal-height screw (11) is located in one of the avoiding grooves (12), each equal-height screw (11) is sleeved with a spring (13), two ends of each spring (13) are respectively abutted to the upper die seat (1) and the ejector block (2), when the second insert (9) descends to a preset maximum stroke, a gap with a distance D exists between the second insert (9) and the limiting plate (5), and when the descending depth of the second insert (9) is larger than or equal to the gap, the lower end of the second insert (9) is abutted to the limiting plate (5).
2. The buckling point limiting mechanism is characterized in that a plurality of second through holes are formed in the second insert (9) at equal intervals in the circumferential direction, each second through hole comprises a circular hole (14) and a third through hole (15) which are coaxially arranged, each circular hole (14) is communicated with the corresponding third through hole (15) and is located above the corresponding third through hole (15), the diameter of each circular hole (14) is larger than that of each third through hole (15), the section of each third through hole (15) is a major arc circle, a ring convex portion (16) is arranged at the upper end of each buckling point male die (10) in the circumferential direction, the diameter of each ring convex portion (16) is larger than that of each buckling point male die (10), the section of each buckling point male die (10) is a major arc circle matched with the corresponding third through hole (15), the buckling point male dies (10) are inserted into the third through holes (15), the ring convex portions (16) are arranged in the circular holes (14), the lower ends of the ring convex portions (16) abut against the bottom surfaces of the circular holes (14), and the upper ends of the buckling point male dies (10) abut against the lower ends of the first male dies (8).
3. The dotting limiting mechanism according to claim 2, wherein a first washer (17) is sleeved on the dotting punch (10), the upper end of the first washer (17) abuts against the lower end of the annular convex part (16), and the lower end of the annular convex part (16) abuts against the bottom surface of the circular hole (14) through the first washer (17).
4. The pinch point limiting mechanism according to claim 1, wherein the limiting assembly comprises a plurality of pressing plates (18) and fixing bolts (19), a groove (20) is formed in the peripheral wall of each pinch point punch (10), the upper end surface of each groove (20) is flush with the lower end of the second insert (9), each pressing plate (18) is fixed on the lower end surface of the punch fixing plate (4) through the fixing bolt (19), and the upper end surface of each pressing plate (18) abuts against the lower end surface of the second insert (9) and the upper end surface of each groove (20).
5. A pinch point stop mechanism according to claim 4, wherein the plurality of pressure plates (18) are integrally formed.
6. The pinch point limiting mechanism according to claim 1, wherein each of the equal-height screws (11) is sleeved with a second gasket (21), the second gasket (21) is located below the spring (13), and the lower end of the spring (13) abuts against the top block (2) through the second gasket (21).
7. The pinch point stop mechanism of claim 1, wherein the gap dimension D ranges from 0.01mm to 0.03mm.
8. The pinch point limiting mechanism according to claim 1, wherein the second insert (9) comprises an insert body (91) and a protrusion (92), the protrusion (92) is arranged in the middle of the lower end surface of the insert body (91), the pinch point punches (10) are arranged on the insert body (91), and the lower end surface of the protrusion (92) is used for abutting against the limiting plate (5).
9. A fastening point limiting mechanism according to any one of claims 1 to 8, wherein in a projection on a horizontal plane, one of the equal-height screws (11) is arranged between every two adjacent fastening point male dies (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211151190.8A CN115555456A (en) | 2022-09-21 | 2022-09-21 | Detain some stop gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211151190.8A CN115555456A (en) | 2022-09-21 | 2022-09-21 | Detain some stop gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115555456A true CN115555456A (en) | 2023-01-03 |
Family
ID=84741982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211151190.8A Pending CN115555456A (en) | 2022-09-21 | 2022-09-21 | Detain some stop gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115555456A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202270798U (en) * | 2011-09-15 | 2012-06-13 | 宁波震裕模具有限公司 | Stamping device of multi-station progressive die for guaranteeing depth of stacking rivet fastening point |
| CN108188269A (en) * | 2018-01-26 | 2018-06-22 | 宁波震裕科技股份有限公司 | A kind of U-shaped piece multiple row rushes progressive die and punching process in advance |
| WO2018151337A1 (en) * | 2017-02-14 | 2018-08-23 | 이윤선 | Stripping device for press mold |
| CN211707894U (en) * | 2019-12-17 | 2020-10-20 | 江苏上骐集团有限公司 | Motor core automatic laminated riveting die with adjustable laminated riveting depth |
| CN212278076U (en) * | 2020-05-11 | 2021-01-01 | 腾普(常州)精机有限公司 | Elastic folding and riveting device for motor iron core |
| CN213162759U (en) * | 2020-06-02 | 2021-05-11 | 珠海格力精密模具有限公司 | Riveting point punch structure and punching die with same |
| CN214022979U (en) * | 2020-11-27 | 2021-08-24 | 闳深精密模具(常州)有限公司 | Progressive die structure for preventing riveting point from punching through |
| CN215431137U (en) * | 2021-06-16 | 2022-01-07 | 苏州范斯特机械科技有限公司 | Equal-height stamping die and stamping machine tool for iron core lamination buckling points |
-
2022
- 2022-09-21 CN CN202211151190.8A patent/CN115555456A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202270798U (en) * | 2011-09-15 | 2012-06-13 | 宁波震裕模具有限公司 | Stamping device of multi-station progressive die for guaranteeing depth of stacking rivet fastening point |
| WO2018151337A1 (en) * | 2017-02-14 | 2018-08-23 | 이윤선 | Stripping device for press mold |
| CN108188269A (en) * | 2018-01-26 | 2018-06-22 | 宁波震裕科技股份有限公司 | A kind of U-shaped piece multiple row rushes progressive die and punching process in advance |
| CN211707894U (en) * | 2019-12-17 | 2020-10-20 | 江苏上骐集团有限公司 | Motor core automatic laminated riveting die with adjustable laminated riveting depth |
| CN212278076U (en) * | 2020-05-11 | 2021-01-01 | 腾普(常州)精机有限公司 | Elastic folding and riveting device for motor iron core |
| CN213162759U (en) * | 2020-06-02 | 2021-05-11 | 珠海格力精密模具有限公司 | Riveting point punch structure and punching die with same |
| CN214022979U (en) * | 2020-11-27 | 2021-08-24 | 闳深精密模具(常州)有限公司 | Progressive die structure for preventing riveting point from punching through |
| CN215431137U (en) * | 2021-06-16 | 2022-01-07 | 苏州范斯特机械科技有限公司 | Equal-height stamping die and stamping machine tool for iron core lamination buckling points |
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