Punching machine capable of rapidly replacing die

Abstract

The utility model belongs to the technical field of punching machines, and particularly relates to a punching machine capable of rapidly replacing a die, which comprises a supporting box, a top plate, a hydraulic cylinder, a mounting plate, an upper die, a lower die, a clamping and limiting assembly I, a clamping and limiting assembly II, a transmission assembly and a pushing assembly, the mounting plate is slidably mounted on the multiple guide columns, the hydraulic cylinder is fixedly mounted on the top plate, the working end of the hydraulic cylinder is fixedly connected with the mounting plate, a mounting groove is formed in the bottom side of the mounting plate, the upper die is mounted in the mounting groove in a clamped mode, and a mounting hole is formed in the inner wall of the top of the mounting groove. The stamping die is reasonable in design, the upper die and the lower die can be effectively fixed and limited, meanwhile, the situation that normal stamping operation is affected due to the fact that the upper die and the lower die deviate in the stamping operation process is effectively avoided, and the upper die and the lower die can be conveniently and rapidly disassembled and replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of punching machines, in particular to a punching machine with rapid die replacement. Background Art

[0002] The stamping machine is a common industrial equipment, which is widely used in stamping processing of various metal materials. During the use of the stamping machine, the replacement of the die is a common operation.

[0003] Referring to the existing authorized announcement number CN 218873401 U, "A forming punching machine with quick mold replacement", it fixes the pressure seat by rotating the rotating stud, and then fixes the lower mold, without the need to use bolts and nuts, which speeds up the replacement of the lower mold. At the same time, the position of the fixing frame is variable, which is convenient for replacing and fixing lower molds of different sizes. It solves the problem in related technologies that the upper and lower molds of most punching machines are not easy to replace or even cannot be replaced, and it is impossible to flexibly replace and use lower molds of different sizes, and the scope of application of the punching machine is small.

[0004] The present invention provides another solution to solve the above problems.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. Utility Model Content

[0006] The purpose of the present invention is to solve the deficiencies mentioned in the above background technology and to propose a punching machine with rapid die replacement.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: A punching machine with rapid die replacement, comprising a support box, a top plate, a hydraulic cylinder, a mounting plate, an upper die, a lower die, a first clamping and limiting assembly, a second clamping and limiting assembly, a transmission assembly, and a push assembly;

[0008] A plurality of guide columns are fixedly installed between the top plate and the support box, the mounting plate is slidably mounted on the plurality of guide columns, the hydraulic cylinder is fixedly mounted on the top plate, and the working end of the hydraulic cylinder is fixedly connected to the mounting plate, the bottom side of the mounting plate is provided with a mounting groove, the upper mold is clamped and installed in the mounting groove, and a mounting hole is provided on the top inner wall of the mounting groove, the pushing assembly is arranged in the mounting hole and adapted to the upper mold, and a plurality of L-shaped slots connected to the mounting slot are provided on the mounting plate based on the mounting slot as the center, the clamping limit assembly 1 is arranged in the plurality of L-shaped slots and adapted to the upper mold, the lower mold is arranged on the top of the support box, the limiting clamping assembly 2 is arranged on the support box and adapted to the lower mold, and the transmission assembly is arranged on the support box and the mounting plate and connected to the clamping limit assembly 2.

[0009] Preferably, the clamping limit assembly includes multiple screw rods, multiple internal thread sleeves, multiple worm wheels, multiple worms, multiple transmission gears and toothed discs. The bottom side of the mounting plate is rotatably mounted with the mounting groove as the center. Worms and screw rods are rotatably mounted in multiple L-shaped slots. The screw rods and worms are arranged perpendicular to each other. Multiple internal thread sleeves are slidably mounted in the L-shaped slots. Multiple limiting holes are opened on the outer peripheral side of the upper mold. The ends of the multiple internal thread sleeves close to each other are respectively clamped and mounted in the corresponding limiting holes. The multiple screw rods are respectively threaded in the corresponding internal thread sleeves. The ends of the multiple screw rods away from the upper mold are fixedly sleeved with worm wheels. The multiple worms are respectively meshed with the corresponding worm wheels. The bottom ends of the multiple worms extend to the bottom of the mounting plate and are respectively fixedly sleeved with transmission gears. The multiple transmission gears are all meshed with the toothed disc.

[0010] Preferably, the top end of one of the worms extends above the mounting plate and is fixedly sleeved with an adjusting wheel.

[0011] Preferably, the second clamping limit assembly includes two clamping plates, two tooth plates, a linkage gear and a push spring. Tooth plates are slidably installed on the top inner wall and the bottom inner wall of the support box. A linkage gear that meshes with the two tooth plates is rotatably installed in the support box. Two strip openings are provided on the top of the support box, and clamping plates are slidably installed in the two strip openings. Two clamping grooves are provided on the outer peripheral side of the lower mold. The two clamping plates are respectively clamped and installed in the corresponding clamping grooves. The two clamping plates extend into the support box and are fixedly connected to the corresponding tooth plates, and the same push spring is fixedly installed between one of the clamping plates and the inner wall of the support box.

[0012] Preferably, the front side of the support box is threadedly installed with a limiting bolt, and the front side of the toothed plate located below is provided with a plurality of screw holes, and the limiting bolts are threadedly installed in the corresponding screw holes.

[0013] Preferably, the transmission assembly includes a push rod, a wedge-shaped slider, a rotating plate and a rotating rod. The rotating rod is rotatably installed on one side of the mounting plate, the rotating plate is radially fixedly installed on the rotating rod, the push rod is vertically slidably installed on the support box, and the wedge-shaped slider is fixedly installed on the bottom end of the push rod. The wedge-shaped slider is in sliding contact with the bottom inner wall of the support box and is fixedly connected to the tooth plate below.

[0014] Preferably, a stopper is fixedly mounted on the push rod, the stopper is in movably contact with the top inner wall of the support box, and the bottom end of the push rod is movably in contact with the inclined surface of the wedge-shaped slider.

[0015] Preferably, an iron block is fixedly mounted on the mounting plate, a magnetic block is fixedly mounted on the top side of the rotating plate, and the rotating plate is fixed to the mounting plate by adsorption of the magnetic block and the iron block.

[0016] Preferably, the pushing assembly includes a pushing block and a compression spring, the compression spring is fixedly mounted on the top inner wall of the mounting hole, the bottom end of the compression spring is fixedly mounted with a pushing block that is slidingly connected to the inner wall of the mounting hole, and the bottom side of the pushing block abuts against the top side of the upper mold.

[0017] The beneficial effects of the utility model are:

[0018] By cooperating with the clamping limit assembly 1 and the clamping limit assembly 2, the positions of the upper die and the lower die can be fixed and limited respectively. At the same time, by cooperating with the limit bolts and the screw holes, the position of the tooth plate in the clamping limit assembly 2 can be effectively limited after the lower die is fixed, thereby effectively preventing the upper die and the lower die from deflecting during the stamping operation, thereby ensuring the normal progress of the stamping operation.

[0019] The transmission assembly provided can adjust the rotating plate in the transmission assembly to a vertical state when the lower mold needs to be disassembled and replaced, and as the mounting plate moves downward, the limit and fixation of the lower mold can be quickly released with the cooperation of the clamping limit assembly 2, thereby facilitating the rapid disassembly and replacement of the lower mold. The pushing assembly provided can push the upper mold out of the mounting groove after the limit on the upper mold is released by the adjusting wheel in cooperation with the clamping limit assembly 1, thereby realizing the rapid disassembly and replacement of the upper mold, thereby greatly improving the efficiency of disassembly, assembly and replacement of the upper and lower molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1This is a schematic diagram of the three-dimensional structure of a punching machine with rapid die replacement proposed by the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the local three-dimensional structure;

[0023] Figure 3 for Figure 2 Schematic diagram of the local three-dimensional structure;

[0024] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure;

[0025] Figure 5 for Figure 4 Schematic diagram of the structure of part A;

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating plate, rotating rod and magnetic block part proposed by the utility model.

[0027] In the figure: 1. Support box; 11. Top plate; 12. Guide column; 13. Hydraulic cylinder; 2. Mounting plate; 201. Push block; 202. Compression spring; 21. Internal thread sleeve; 22. Screw rod; 23. Worm gear; 24. Worm; 25. Transmission gear; 26. Tooth plate; 27. Adjusting wheel; 3. Upper die; 4. Lower die; 5. Clamping plate; 51. Linkage gear; 52. Tooth plate; 53. Push spring; 54. Wedge slider; 55. Push rod; 56. Rotating plate; 57. Magnetic block; 58. Limit bolt. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0029] Reference Figure 1-6A stamping machine for rapid mold replacement includes a support box 1, a top plate 11, a hydraulic cylinder 13, a mounting plate 2, an upper mold 3 and a lower mold 4. A plurality of guide columns 12 are fixedly installed between the top plate 11 and the support box 1. The mounting plate 2 is slidably mounted on the plurality of guide columns 12. The hydraulic cylinder 13 is fixedly mounted on the top plate 11, and the working end of the hydraulic cylinder 13 is fixedly connected to the mounting plate 2. A mounting groove is provided on the bottom side of the mounting plate 2, and the upper mold 3 is clamped and mounted in the mounting groove. A mounting hole is provided on the top inner wall of the mounting groove. A compression spring 202 is fixedly installed on the top inner wall of the mounting hole. A push block 201 slidably connected to the inner side wall of the mounting hole is fixedly installed on the bottom end of the compression spring 202, and the bottom side of the push block 201 abuts against the top side of the upper mold 3, which can be released when the upper mold 3 is released. After limiting, the upper mold 3 is removed from the mounting groove to avoid the upper mold 3 being stuck in the mounting groove and making it difficult to disassemble the upper mold 3. A plurality of L-shaped slots connected to the mounting slot are provided on the mounting plate 2 based on the mounting slot as the center. A gear disk 26 is rotatably installed on the bottom side of the mounting plate 2 based on the mounting slot as the center. A worm 24 and a screw rod 22 are rotatably installed in the plurality of L-shaped slots. The screw rod 22 and the worm 24 are arranged perpendicular to each other. A plurality of inner thread sleeves 21 are slidably installed in the L-shaped slots. A plurality of limiting holes are provided on the outer peripheral side of the upper mold 3. The ends of the plurality of inner thread sleeves 21 close to each other are respectively clamped and installed in the corresponding limiting holes. The plurality of screw rods 22 are respectively threadedly installed in the corresponding inner thread sleeves 21. The ends of the plurality of screw rods 22 away from the upper mold 3 are fixedly sleeved with worms The gears 23 and 24 are meshed with the corresponding worm wheels 23 respectively. The bottom ends of the worm gears 24 extend to the bottom of the mounting plate 2 and are fixedly sleeved with transmission gears 25 respectively. The transmission gears 25 are meshed with the toothed disc 26, and can make the multiple transmission gears 25 rotate synchronously when the toothed disc 26 rotates, thereby being able to synchronously control the movement of the multiple inner thread sleeves 21 in the direction close to the upper mold 3 or in the direction away from the upper mold 3, thereby facilitating the rapid disassembly and replacement of the upper mold 3. The lower mold 4 is arranged on the top of the support box 1, and toothed plates 52 are slidably installed on the top inner wall and the bottom inner wall of the support box 1. A linkage gear 51 meshing with the two toothed plates 52 is rotatably installed in the support box 1. The top of the support box 1 is provided with two strip openings. The two strip openings A card plate 5 is slidably installed in the shaped opening, and two card grooves are provided on the outer peripheral side of the lower mold 4. The two card plates 5 are respectively clamped and installed in the corresponding card grooves. The two card plates 5 extend into the support box 1 and are fixedly connected to the corresponding tooth plates 52. A same push spring 53 is fixedly installed between one of the card plates 5 and the inner side wall of the support box 1, which is convenient for fixing the position of the lower mold 4. At the same time, the clamping limit of the lower mold 4 can be released when the two card plates 5 move away from each other, thereby facilitating the rapid disassembly and replacement of the lower mold 4. A rotating rod is rotatably installed on one side of the mounting plate 2, and a rotating plate 56 is radially fixedly installed on the rotating rod. A push rod 55 is vertically slidably installed on the support box 1, and a wedge-shaped slider 54 is fixedly installed on the bottom end of the push rod 55.The wedge-shaped slider 54 is in sliding contact with the bottom inner wall of the support box 1 and is fixedly connected to the toothed plate 52 below. When the rotating plate 56 is in a vertical position and moves downward with the mounting plate 2, the wedge-shaped slider 54 can be controlled to move rightward and drive the toothed plate 52 below to move rightward synchronously, thereby facilitating the control of the two clamping plates 5 to quickly release the fixation and limit of the lower mold 4.

[0030] In this embodiment, the top end of one of the worms 24 extends to the top of the mounting plate 2 and is fixedly sleeved with an adjusting wheel 27, which facilitates the operator to control the rotation of the gear disc 26, thereby effectively improving the efficiency of disassembly, assembly and replacement of the upper mold 3.

[0031] In this embodiment, a limiting bolt 58 is threadedly installed on the front side of the support box 1, and a plurality of screw holes are provided on the front side of the tooth plate 52 located below. The limiting bolt 58 is threadedly installed in the corresponding screw holes, which can effectively limit the position of the tooth plate 52 after the lower die 4 is fixed, thereby avoiding the displacement of the lower die 4 during the stamping operation and affecting the normal stamping processing operation.

[0032] In this embodiment, a stopper is fixedly installed on the push rod 55, which is in movable contact with the top inner wall of the support box 1, and the bottom end of the push rod 55 is movably abutted against the inclined surface of the wedge-shaped slider 54, which can limit the push rod 55, thereby effectively preventing the push rod 55 from being pulled out upward.

[0033] In this embodiment, an iron block is fixedly installed on the mounting plate 2, and a magnetic block 57 is fixedly installed on the top side of the rotating plate 56. The rotating plate 56 is fixed to the mounting plate 2 by adsorption of the magnetic block 57 and the iron block, which facilitates the storage of the rotating plate 56 during the stamping process.

[0034] Working principle: When in use, first turn on the power and rotate the rotating plate 56 to the vertical state, then start the hydraulic cylinder 13 to control the mounting plate 2 to move downward, the rotating plate 56 abuts against the top of the push rod 55 and pushes the push rod 55 to move downward, so that the lower toothed plate 52 can be controlled to slide to the right under the cooperation of the wedge-shaped slider 54, and at the same time, the two clamping plates 5 are controlled to move away from each other under the cooperation of the linkage gear 51 and the upper gear, and the lower mold 4 is placed in the center position on the support box 1 and the clamping groove is aligned with the clamping plate 5, and then the mounting plate 2 is controlled to move upward by the hydraulic cylinder 13, and the wedge slider 54 can be reset to the left under the action of the push spring 53, and the rotating plate 56 is rotated to the position as shown after it is out of contact with the push rod 55. Figure 2 、 Figure 3 and Figure 4State, with the cooperation of the magnetic block 57 and the iron block, the rotating plate 56 can be limited, the upper mold 3 is placed on the lower mold 4, and then the mounting plate 2 is controlled to move downward again and the upper mold 3 is stuck in the mounting groove, and then the worm 24 is rotated by the adjusting wheel 27. With the cooperation of the toothed disc 26 and the transmission gear 25, the multiple screw rods 22 can be controlled to rotate synchronously and the multiple inner thread sleeves 21 can be controlled to move in the direction close to the upper mold 3, and then the inner thread sleeves 21 are inserted into the corresponding limiting holes to complete the limiting of the upper mold 3.

[0035] The above describes in detail the rapid die-changing punching machine provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above examples is intended only to facilitate understanding of the method and core concept of the present invention. It should be noted that those skilled in the art may make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A punching machine with rapid die change, characterized in that: It comprises a support box (1), a top plate (11), a hydraulic cylinder (13), a mounting plate (2), an upper die (3), a lower die (4), a first clamping and limiting component, a second clamping and limiting component, a transmission component and a push component; A plurality of guide columns (12) are fixedly installed between the top plate (11) and the support box (1), the mounting plate (2) is slidably mounted on the plurality of guide columns (12), the hydraulic cylinder (13) is fixedly mounted on the top plate (11), and the working end of the hydraulic cylinder (13) is fixedly connected to the mounting plate (2), a mounting groove is provided on the bottom side of the mounting plate (2), the upper mold (3) is snap-fitted and installed in the mounting groove, a mounting hole is provided on the top inner wall of the mounting groove, and the push assembly is arranged on the top inner wall of the mounting groove. The mounting plate (2) is provided with a plurality of L-shaped slots connected to the mounting slots based on the mounting slots as the center, the first clamping limit assembly is arranged in the plurality of L-shaped slots and is adapted to the upper die (3), the lower die (4) is arranged on the top of the support box (1), the second limit clamping assembly is arranged on the support box (1) and is adapted to the lower die (4), and the transmission assembly is arranged on the support box (1) and the mounting plate (2) and is connected to the second clamping limit assembly.

2. A punching machine with rapid die change according to claim 1, characterized in that: The clamping limit assembly comprises a plurality of screw rods (22), a plurality of inner thread sleeves (21), a plurality of worm wheels (23), a plurality of worms (24), a plurality of transmission gears (25) and a toothed disc (26). The bottom side of the mounting plate (2) is rotatably mounted with the toothed disc (26) based on the mounting groove as the center. The worms (24) and screw rods (22) are rotatably mounted in the plurality of L-shaped slots. The screw rods (22) and the worms (24) are arranged perpendicular to each other. The L-shaped slots are slidably mounted with a plurality of inner thread sleeves (21). The outer peripheral side of the upper mold (3) is provided with a plurality of limit The plurality of inner thread sleeves (21) are respectively clamped and installed in the corresponding limiting holes at one end thereof, and the plurality of screw rods (22) are respectively threadedly installed in the corresponding inner thread sleeves (21). The ends of the plurality of screw rods (22) away from the upper die (3) are fixedly sleeved with a worm gear (23), and the plurality of worms (24) are respectively meshed with the corresponding worm gears (23). The bottom ends of the plurality of worms (24) extend to the bottom of the mounting plate (2) and are respectively fixedly sleeved with a transmission gear (25), and the plurality of transmission gears (25) are meshed with a toothed disc (26).

3. A punching machine with rapid die change according to claim 2, characterized in that: The top end of one of the worms (24) extends to the top of the mounting plate (2) and is fixedly sleeved with an adjusting wheel (27).

4. A punching machine with rapid die change according to claim 1, characterized in that: The second clamping limit assembly comprises two clamping plates (5), two tooth plates (52), a linkage gear (51) and a push spring (53). The tooth plates (52) are slidably mounted on the top inner wall and the bottom inner wall of the support box (1). A linkage gear (51) meshing with the two tooth plates (52) is rotatably mounted in the support box (1). The top of the support box (1) is provided with two strip-shaped openings, and the clamping plates (5) are slidably mounted in the two strip-shaped openings. The outer peripheral side of the lower mold (4) is provided with two clamping grooves. The two clamping plates (5) are respectively clamped and mounted in the corresponding clamping grooves. The two clamping plates (5) extend into the support box (1) and are respectively fixedly connected to the corresponding tooth plates (52). A same push spring (53) is fixedly mounted between one of the clamping plates (5) and the inner wall of the support box (1).

5. A punching machine with rapid die change according to claim 4, characterized in that: The front side of the support box (1) is threadedly mounted with a limiting bolt (58), and the front side of the toothed plate (52) located below is provided with a plurality of screw holes, and the limiting bolts (58) are threadedly mounted in the corresponding screw holes.

6. A punching machine with rapid die change according to claim 4, characterized in that: The transmission assembly comprises a push rod (55), a wedge-shaped slider (54), a rotating plate (56) and a rotating rod. The rotating rod is rotatably mounted on one side of the mounting plate (2). The rotating plate (56) is radially fixedly mounted on the rotating rod. The push rod (55) is vertically slidably mounted on the support box (1). The bottom end of the push rod (55) is fixedly mounted with a wedge-shaped slider (54). The wedge-shaped slider (54) is in sliding contact with the bottom inner wall of the support box (1) and is fixedly connected to the toothed plate (52) below.

7. A punching machine with rapid die change according to claim 6, characterized in that: A stopper is fixedly mounted on the push rod (55), the stopper is in active contact with the top inner wall of the support box (1), and the bottom end of the push rod (55) is in active contact with the inclined surface of the wedge-shaped slider (54).

8. A punching machine with rapid die change according to claim 6, characterized in that: An iron block is fixedly mounted on the mounting plate (2), a magnetic block (57) is fixedly mounted on the top side of the rotating plate (56), and the rotating plate (56) is fixed on the mounting plate (2) by adsorption of the magnetic block (57) and the iron block.

9. The punching machine with rapid die change according to claim 1, characterized in that: The push assembly comprises a push block (201) and a compression spring (202), wherein the compression spring (202) is fixedly mounted on the top inner wall of the mounting hole, and the bottom end of the compression spring (202) is fixedly mounted with a push block (201) that is slidably connected to the inner wall of the mounting hole, and the bottom side of the push block (201) is in contact with the top side of the upper mold (3).

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