CN113059058B - Punching die for C-shaped steel for steel structure - Google Patents
Punching die for C-shaped steel for steel structure Download PDFInfo
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- CN113059058B CN113059058B CN202110463681.5A CN202110463681A CN113059058B CN 113059058 B CN113059058 B CN 113059058B CN 202110463681 A CN202110463681 A CN 202110463681A CN 113059058 B CN113059058 B CN 113059058B
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- rod
- gear
- sliding
- die holder
- upper die
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Classifications
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/04—Centering the work; Positioning the tools
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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
- B21D37/04—Movable or exchangeable mountings for tools
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of steel structure processing, and discloses a punching die for C-shaped steel for a steel structure. Two arc clamp splice are arranged in the mounting groove relatively, and a clamping space for clamping and fixing the punch rod part is formed between the two arc clamp splice. The upper die holder is internally provided with a pressing mechanism for guiding the two arc-shaped clamping blocks to be close to each other and a decompression mechanism for guiding the two arc-shaped clamping blocks to be far away from each other. Through the arc clamp splice that sets up in the mounting groove of upper die base and the last die base in set up be used for guiding two the pressing mechanism that the arc clamp splice is close to each other and be used for guiding two the decompression mechanism that the arc clamp splice is kept away from each other can accomplish the quick assembly disassembly between drift and the upper die base, convenient maintenance.
Description
Technical Field
The invention relates to the technical field of steel structure processing, in particular to a punching die for C-shaped steel for a steel structure.
Background
The C-shaped steel is automatically processed and formed by a C-shaped steel forming machine. The C-shaped steel forming machine can automatically complete the forming process of the C-shaped steel according to the given size of the C-shaped steel, the C-shaped steel is formed by cold bending of a hot rolled plate, the wall thickness is thin, the dead weight is light, the section performance is excellent, the strength is high, compared with the traditional channel steel, the material can be saved with the same strength, and punching treatment is needed in the processing process of the C-shaped steel.
The punching die comprises an upper die base and a lower die base, wherein a punch is arranged at the bottom of the upper die base, a punching hole corresponding to the punch is arranged at the top of the lower die base, C-shaped steel is transmitted and positioned between the upper die base and the lower die base, and the punching hole of the C-shaped steel is completed by the punch.
However, the punches and the upper die base of the punching die in the prior art are mostly connected through screws, so that the punches are time-consuming and labor-consuming to assemble and disassemble when the punches are required to be maintained, and the punching die is quite inconvenient
Disclosure of Invention
The invention provides a punching die for C-shaped steel for a steel structure, which aims to solve the technical problem that in the prior art, when a punch of the punching die is maintained, the punch and an upper die seat are inconvenient to assemble and disassemble.
The invention is realized by adopting the following technical scheme: the punching die for the C-shaped steel for the steel structure comprises an upper die holder and a punch inserted on the upper die holder, wherein the bottom of the upper die holder is provided with a mounting groove for inserting a punch rod part; two arc-shaped clamping blocks are arranged in the mounting groove relatively, and a clamping space for clamping and fixing the punch rod part is formed between the two arc-shaped clamping blocks;
the upper die holder is internally provided with a pressing mechanism for guiding the two arc-shaped clamping blocks to be close to each other and a decompression mechanism for guiding the two arc-shaped clamping blocks to be far away from each other.
As a further improvement of the scheme, one end of the punch rod is sleeved with a butt joint sleeve, and the groove wall of the mounting groove is provided with a butt joint groove which is in clamping fit with one end of the butt joint sleeve, which is far away from the punch rod.
As a further improvement of the scheme, the bottoms of the two arc-shaped clamping blocks are provided with inclined planes I which face the center of the mounting groove and incline upwards; one side of the butt joint sleeve, which is far away from the punch rod part, is provided with a second inclined plane which is in sliding extrusion fit with the first inclined plane.
As a further improvement of the scheme, two first sliding grooves perpendicular to the punch are symmetrically formed in the upper die base relative to the mounting groove, second sliding grooves are formed in one side, away from the mounting groove, of each first sliding groove in the upper die base, and each second sliding groove is vertically communicated with the corresponding first sliding groove.
As a further improvement of the above scheme, the pressing mechanism includes two first sliding blocks respectively slidably disposed in the two first sliding grooves and two limiting blocks respectively fixedly disposed in the two first sliding grooves, and the first sliding block in each first sliding groove is located at one side of the corresponding limiting block close to the mounting groove; a connecting rod I parallel to the extending direction of the sliding groove I is fixedly inserted on each sliding block I; one end of the first connecting rod extends into the mounting groove and is connected with the corresponding arc-shaped clamping block, and the other end of the first connecting rod penetrates through the limiting block in a sliding manner; the outer side of the first connecting rod is sleeved with a spring, and the spring is abutted between one side of the first sliding block and the groove wall of the first sliding groove, which is far away from one side of the limiting block;
when the two arc-shaped clamping blocks are in butt joint to form a clamping space, the two springs are in a compressed state.
As a further improvement of the scheme, the decompression mechanism comprises two sliding blocks II which are respectively arranged in the two sliding grooves II in a sliding manner; the bottom of each sliding block II is provided with a connecting rod II which is parallel to the extending direction of the sliding groove II, the bottom of each connecting rod II is provided with an inclined table, and the inclined table is provided with an inclined surface III; a roller matched with the inclined plane III in a rolling extrusion manner is arranged on the end part of the first connecting rod penetrating through the limiting block;
a rod sleeve positioned above the second sliding block is arranged in each second sliding groove, and the rod sleeves are in threaded fit connection with the second sliding grooves; the top of the rod sleeve is integrally provided with a first gear protruding out of the top of the upper die holder, a rod hole coaxial with the first gear is commonly formed between the first gear and the rod sleeve, and a screwing rod is rotationally inserted in the rod hole;
the bottom of the screwing rod penetrates into the second sliding groove, and a thread groove matched with the thread at the bottom of the screwing rod is formed in the top of the second sliding block.
As a further improvement of the scheme, the top of the upper die holder positioned on two sides of each gear I is respectively provided with a rotating shaft I and a rotating shaft II in a rotating mode, the rotating shaft I is sleeved with a gear III meshed with the gear I, and the rotating shaft II is sleeved with a gear IV meshed with the gear II.
As a further improvement of the above, the axial length of the first gear is longer than the axial length of the third gear; the axial length of the second gear is greater than that of the fourth gear.
As a further improvement of the scheme, belt wheels I are sleeved on the two rotating shafts II, a vertical shaft is rotatably arranged in the middle of the top of the upper die holder, belt wheels II are sleeved on the vertical shaft, and the belt wheels II are in transmission connection with the two belt wheels I through a belt.
As the further improvement of above-mentioned scheme, cut-out press of C shaped steel for steel construction still is including setting up the die holder of die holder below, the bottom sprag of die holder is on a workstation, the die holder erects on a support, the top of die holder is provided with the hanger plate, the hanger plate with connect through the jib between the support, the top of workstation is provided with two gag lever posts relatively, just the die holder is located two between the gag lever post, have on the support with gag lever post sliding fit's spacing hole.
The beneficial effects of the invention are as follows:
according to the punching die for the C-shaped steel for the steel structure, the quick assembly and disassembly between the punch and the upper die holder can be completed through the arc-shaped clamping blocks arranged in the mounting groove of the upper die holder, the pressing mechanism used for guiding the two arc-shaped clamping blocks to be close to each other and the decompression mechanism used for guiding the two arc-shaped clamping blocks to be far away from each other and arranged in the upper die holder, and the punching die is convenient to maintain.
Drawings
Fig. 1 is a schematic structural view of an upper die holder in a punching die for C-shaped steel for steel structure provided in embodiment 1 of the present invention;
FIG. 2 is a schematic top view of the upper die holder of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the upper die holder of FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of FIG. 3A;
FIG. 5 is a schematic cross-sectional view of the sleeve and gear I of FIG. 4;
fig. 6 is a schematic structural view of a punching die for C-shaped steel for steel structure provided in embodiment 2 of the present invention.
Main symbol description:
1. an upper die holder; 2. a lower die holder; 3. a punch; 4. a work table; 5. a bracket; 6. a hanger plate; 7. a boom; 8. a driving rod; 9. a limit rod; 10. a mounting groove; 11. arc clamping blocks; 12. a butt joint sleeve; 13. a first chute; 14. a second chute; 15. a first sliding block; 16. a limiting block; 17. a first connecting rod; 18. a spring; 19. a roller; 20. a second slide block; 21. a second connecting rod; 22. a ramp; 23. a thread groove; 24. a rod sleeve; 25. a first gear; 26. a shaft seat; 27. a rod hole; 28. twisting the rod; 29. a second gear; 30. a first rotating shaft; 31. a third gear; 32. a second rotating shaft; 33. a fourth gear; 34. a belt wheel I; 35. and a belt wheel II.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1 to 5, the punching die for C-shaped steel for steel structures comprises an upper die holder 1 and a punch 3 inserted in the upper die holder 1, wherein an installation groove 10 for inserting a rod part of the punch 3 is formed in the bottom of the upper die holder 1. Two arc-shaped clamping blocks 11 are oppositely arranged in the mounting groove 10, and a clamping space for clamping and fixing the rod part of the punch 3 is formed between the two arc-shaped clamping blocks 11.
The upper die holder 1 is internally provided with a pressing mechanism for guiding the two arc-shaped clamping blocks 11 to be close to each other and a decompression mechanism for guiding the two arc-shaped clamping blocks 11 to be far away from each other.
One end of the rod portion of the punch 3 is sleeved with a butt joint sleeve 12, in this embodiment, a plug groove (not shown) for inserting the rod portion of the punch 3 is formed in the butt joint sleeve 12, and the size of a groove body of the plug groove is adapted to the rod diameter of the rod portion of the punch 3. A butting groove (not labeled) which is in clamping fit with one end of the butting sleeve 12, which is far away from the rod part of the punch 3, is formed in the groove wall of the mounting groove 10. The butt joint sleeve 12 is clamped in the butt joint groove, so that the punch 3 can be inserted into the upper die holder 1 more stably and reliably.
The bottoms of both arc-shaped clamping blocks 11 are provided with a first inclined surface (not shown) which faces the center of the mounting groove 10 and is inclined upwards. The side of the abutment 12 remote from the shank of the punch 3 has a second bevel (not shown) which is in sliding press fit with the first bevel. In this embodiment, a similar upward concave avoidance area is formed between the inclined planes on the two arc-shaped clamping blocks 11, when the butt joint sleeve 12 is inserted into the installation groove 10, the inclined planes on the arc-shaped clamping blocks 11 are extruded through the inclined planes on the butt joint sleeve 12, so that the two arc-shaped clamping blocks 11 are separated from each other to enable the butt joint sleeve 12 to move upwards with the punch 3, the butt joint sleeve 12 can finally pass through the arc-shaped clamping blocks 11 to be clamped into the butt joint groove, and the two arc-shaped clamping blocks 11 complete clamping and fixing of the rod part of the punch 3.
Two first sliding grooves 13 perpendicular to the punch 3 are symmetrically formed in the upper die holder 1 relative to the mounting groove 10, second sliding grooves 14 are formed in one side, away from the mounting groove 10, of each first sliding groove 13 in the upper die holder 1, and each second sliding groove 14 is vertically communicated with the corresponding first sliding groove 13.
The pressing mechanism comprises two first sliding blocks 15 which are respectively arranged in the two first sliding grooves 13 in a sliding mode, and two limiting blocks 16 which are respectively arranged in the two first sliding grooves 13 in a fixed mode, wherein the first sliding blocks 15 in each first sliding groove 13 are located on one side, close to the mounting groove 10, of the corresponding limiting block 16. A connecting rod I17 parallel to the extending direction of the sliding groove I13 is fixedly inserted on each sliding block I15. One end of the first connecting rod 17 extends into the mounting groove 10 and is connected with the corresponding arc-shaped clamping block 11, and the other end of the first connecting rod penetrates through the limiting block 16 in a sliding mode. The spring 18 is sleeved on the outer side of the first connecting rod 17, and the spring 18 is abutted between one side of the first sliding block 15 and the groove wall of the first sliding groove 13, which is far away from one side of the limiting block 16. When the two arc-shaped clamping blocks 11 are butted to form a clamping space, the two springs 18 are in a compressed state.
In the present embodiment, it is provided that when the spring 18 is in the undeformed state, the first slider 15 is located at a side of the first chute 13 near the stopper 16, and a portion of the rod body of the first link 17 extends into the second chute 14. Because the second slide block 20, the second connecting rod 21 and the inclined platform 22 in the second slide groove 14 have certain weight, when the second slide block 20, the second connecting rod 21 and the inclined platform 22 are not accommodated in the second slide groove 14 by external force, the second slide block 20, the second connecting rod 21 and the inclined platform 22 can convert the weight into extrusion force to the roller 19 through the inclined plane of the inclined platform 22, and the roller 19 transmits the extrusion force to the first slide block 15 through the first connecting rod 17, so that the first slide block 15 slides in the first slide groove 13 towards the direction of the mounting groove 10 and compresses the spring 18, and the two arc-shaped clamping blocks 11 are mutually close to form a clamping space.
The decompression mechanism comprises two second sliding blocks 20 which are respectively arranged in the two second sliding grooves 14 in a sliding mode. The bottom of each second slider 20 is provided with a second connecting rod 21 parallel to the extending direction of the second sliding chute 14, the bottom of the second connecting rod 21 is provided with a sloping platform 22, and the sloping platform 22 is provided with a sloping surface III (not labeled). The end part of the first connecting rod 17 penetrating through the limiting block 16 is provided with a roller 19 matched with the inclined plane three in a rolling extrusion mode.
When the arc-shaped clamping block 11 is pressed, the first connecting rod 17 and the first sliding block 15 are driven to move towards the second sliding groove 14, the compression degree of the spring 18 is reduced to a certain extent, and meanwhile, the corresponding end part of the first connecting rod 17 drives the roller 19 to roll and press the inclined surface III of the inclined table 22, so that the inclined table 22 is forced to drive the second sliding block 20 to move upwards in the second sliding groove 14 through the second connecting rod 21.
A rod sleeve 24 positioned above the second slide block 20 is arranged in each second slide groove 14, and the rod sleeve 24 is in threaded fit connection with the second slide grooves 14. In this embodiment, the outer portion Zhou Cebu of the sleeve 24 is provided with an external thread (not shown), and the wall of the second chute 14 is provided with an internal thread matching the external thread. The top integral type of pole cover 24 is provided with the gear one 25 that outstanding upper die base 1 top, has offered jointly between gear one 25 and the pole cover 24 and has had the pole hole 27 coaxial with gear one 25, rotates in the pole hole 27 and inserts and be equipped with the pole 28 of twisting, has inlayed in the pole hole 27 in this embodiment axle bed 26, installs the bearing in the axle bed 26, and the inner circle of bearing is fixed with the outer periphery side block of pole 28 of twisting, this makes the pole 28 of twisting can rotate relative gear one 25 and pole cover 24.
The bottom of the screw rod 28 penetrates into the second chute 14, a thread groove 23 in threaded fit with the bottom of the screw rod 28 is formed in the top of the second slider 20, and one end, close to the thread groove 23, of the screw rod 28 is provided with external threads matched with the thread groove 23.
The top of the upper die holder 1 positioned at two sides of each gear one 25 is respectively provided with a rotating shaft one 30 and a rotating shaft two 32 in a rotating way, the rotating shaft one 30 is sleeved with a gear three 31 meshed with the gear one 25, and the rotating shaft two 32 is sleeved with a gear four 33 meshed with the gear two 29.
The axial length of the first gear 25 is longer than the axial length of the third gear 31, so that the third gear 31 can always maintain the engagement state with the first gear 25 when moving in the axial direction of the first gear 25. The axial length of the second gear 29 is longer than that of the fourth gear 33, so that the second gear 29 can always maintain the engagement state with the fourth gear 33 when moving in the axial direction of the fourth gear 33.
The two rotating shafts 32 are respectively sleeved with a belt wheel 34, a vertical shaft is rotatably arranged in the middle of the top of the upper die holder 1, the vertical shaft is sleeved with a belt wheel 35, and the belt wheel 35 is in transmission connection with the two belt wheels 34 through a belt. In this embodiment, a rocking handle (not labeled) is installed at the eccentric position of the wheel surface of the second belt wheel 35, the second belt wheel 35 can rotate through the rocking handle, and the second belt wheel 35 can drive the first belt wheels 34 to synchronously rotate through a belt.
The principle of the working mode in this embodiment is that when installing the punch 3 on the upper die holder 1, the rod portion of the punch 3 is inserted into the insertion groove of the butt joint sleeve 12, then the butt joint sleeve 12 is inserted into the installation groove 10, the butt joint sleeve 12 first enters the avoidance area, the inclined plane two of the butt joint sleeve 12 slides and extrudes the inclined plane one of the two arc-shaped clamping blocks 11, the two arc-shaped clamping blocks 11 are separated from each other to be penetrated by the butt joint sleeve 12, then the butt joint sleeve 12 is clamped into the butt joint groove, and the two arc-shaped clamping blocks 11 reset to clamp and fix the rod portion of the punch 3.
During this process, when the two arc-shaped clamping blocks 11 are separated, the first connecting rod 17 and the first sliding block 15 are driven to move in the first sliding groove 13 towards the second sliding groove 14, and the compression degree of the spring 18 is reduced to a certain extent, so that the inclined table 22, the second connecting rod 21 and the second sliding block 20 are pushed by the roller 19 to move upwards for a certain distance. When the butt joint sleeve 12 passes over the arc-shaped clamping block 11, the arc-shaped clamping block 11 is not subjected to extrusion force from the butt joint sleeve 12, the inclined table 22, the connecting rod II 21 and the sliding block II 20 return to the initial positions, and the roller 19 is extruded to enable the roller 19 to drive the sliding block I15 to return to the initial positions in the sliding groove I13 through the connecting rod I17, so that the two arc-shaped clamping blocks 11 can clamp and fix the rod parts of the punch 3.
When the punch 3 needs to be removed from the upper die holder 1 for maintenance, the two first rotating shafts 30 are respectively screwed to drive the two third gears 31 to rotate, the two third gears 31 respectively drive the two first gears 25 to rotate, the rotation of each first gear 25 causes the mutual threaded interaction between the rod sleeve 24 and the second sliding groove 14, the rod sleeve 24 drives the first gears 25 to rotationally sink towards the second sliding block 20, and the screwing rod 28 and the second gears 29 move towards the second sliding groove 14. When the end of the screw 28 moves to the notch of the thread groove 23 of the slider 20, the two pulleys 34 are driven to synchronously rotate by the pulley 35 and the belt, so that each pulley 34 drives the gear 33 and the gear 29 to synchronously rotate by the rotating shaft 32, the gear 29 drives the screw 28 to rotate, so that the end of the screw 28 is screwed into the thread groove 23 of the slider 20, and at the moment, the gear 31 and the gear 25 are driven to reversely rotate by the rotating shaft 30, so that the screw sleeve 24 and the sliding groove 14 gradually ascend by the mutual thread action between the screw sleeve 24 and the sliding groove 14, the screw sleeve 24 pulls the slider 20, the connecting rod 21 and the inclined table 22 to ascend by the screw 28, the inclined table 22 and the rolling wheel 19 are completely separated, the elastic force of the spring 18 releases and pushes the slider 15 to slide in the sliding groove 13 towards the sliding groove 14, the slider 15 drives the arc-shaped clamping block 11 to move towards the sliding groove 14 by the connecting rod 17, so that the punches 3 are separated from the mounting groove 10.
It should be noted that, after the punch 3 is mounted on the upper die holder 1, in order to further prevent the punch 3 from falling from between the two arc-shaped clamping blocks 11, the screwing rod 28 in the decompression mechanism is driven to screw into the threaded groove 23 of the second slider 20, and then the rod sleeve 24 is driven to drive the screwing rod 28, the second slider 20, the second connecting rod 21 and the inclined table 22 to move downwards, so that the extrusion roller 19 drives the first connecting rod 17 and the arc-shaped clamping blocks 11 to move, and the rod portion of the punch 3 is further clamped and fixed by the two arc-shaped clamping blocks 11, so that the punch 3 is prevented from being separated from the upper die holder 1, and the punch is safe and reliable.
Example 2
Please combine fig. 6, the cut-out press of steel construction for C shaped steel still includes setting up die holder 2 of upper die holder 1 below, the bottom support of die holder 2 is on a workstation 4, upper die holder 1 erects on a support 5, the top of upper die holder 1 is provided with hanger plate 6, be connected through jib 7 between hanger plate 6 and the support 5, the top of workstation 4 is provided with two gag lever posts 9 relatively, and die holder 2 is located between two gag lever posts 9, have on the support 5 with gag lever post 9 sliding fit's spacing hole (not shown). The top of the hanger plate 6 in this embodiment may be connected with a driving rod 8, and the driving rod 8 may be driven by a hydraulic rod of a hydraulic cylinder or a piston rod of a pneumatic cylinder to provide a pressing force for the punching of the punch 3.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (3)
1. The punching die for the C-shaped steel for the steel structure is characterized by comprising an upper die holder and a punch inserted on the upper die holder, wherein the bottom of the upper die holder is provided with a mounting groove for inserting a punch rod part; two arc-shaped clamping blocks are arranged in the mounting groove relatively, and a clamping space for clamping and fixing the punch rod part is formed between the two arc-shaped clamping blocks;
the upper die holder is internally provided with a pressing mechanism for guiding the two arc-shaped clamping blocks to be close to each other and a decompression mechanism for guiding the two arc-shaped clamping blocks to be far away from each other;
one end of the punch rod part is sleeved with a butt joint sleeve, and the wall of the mounting groove is provided with a butt joint groove which is in clamping fit with one end of the butt joint sleeve, which is far away from the punch rod part;
the bottoms of the two arc-shaped clamping blocks are respectively provided with an inclined plane I which faces the center of the mounting groove and inclines upwards; one side of the butt joint sleeve, which is far away from the punch rod part, is provided with a second inclined plane which is in sliding extrusion fit with the first inclined plane;
two first sliding grooves perpendicular to the punch are symmetrically formed in the upper die holder relative to the mounting groove, second sliding grooves are formed in one side, away from the mounting groove, of each first sliding groove in the upper die holder, and each second sliding groove is vertically communicated with the corresponding first sliding groove;
the pressing mechanism comprises two first sliding blocks which are respectively arranged in the two first sliding grooves in a sliding mode, and two limiting blocks which are respectively and fixedly arranged in the two first sliding grooves, wherein the first sliding blocks in each first sliding groove are positioned on one side, close to the mounting groove, of the corresponding limiting block; a connecting rod I parallel to the extending direction of the sliding groove I is fixedly inserted on each sliding block I; one end of the first connecting rod extends into the mounting groove and is connected with the corresponding arc-shaped clamping block, and the other end of the first connecting rod penetrates through the limiting block in a sliding manner; the outer side of the first connecting rod is sleeved with a spring, and the spring is abutted between one side of the first sliding block and the groove wall of the first sliding groove, which is far away from one side of the limiting block;
when the two arc-shaped clamping blocks are butted to form a clamping space, the two springs are in a compressed state;
the decompression mechanism comprises two second sliding blocks which are respectively arranged in the two second sliding grooves in a sliding manner; the bottom of each sliding block II is provided with a connecting rod II which is parallel to the extending direction of the sliding groove II, the bottom of each connecting rod II is provided with an inclined table, and the inclined table is provided with an inclined surface III; a roller matched with the inclined plane III in a rolling extrusion manner is arranged on the end part of the first connecting rod penetrating through the limiting block;
a rod sleeve positioned above the second sliding block is arranged in each second sliding groove, and the rod sleeves are in threaded fit connection with the second sliding grooves; the top of the rod sleeve is integrally provided with a first gear protruding out of the top of the upper die holder, a rod hole coaxial with the first gear is commonly formed between the first gear and the rod sleeve, and a screwing rod is rotationally inserted in the rod hole;
the bottom end of the screwing rod penetrates into the second chute, and a thread groove in threaded fit with the bottom end of the screwing rod is formed in the top of the second slider;
the top of the upper die holder positioned on two sides of each gear I is respectively provided with a rotating shaft I and a rotating shaft II in a rotating way, the rotating shaft I is sleeved with a gear III meshed with the gear I, and the rotating shaft II is sleeved with a gear IV meshed with the gear II;
the axial length of the first gear is greater than that of the third gear; the axial length of the second gear is greater than that of the fourth gear; the second gear is arranged at the upper end of the screw rod and can drive the screw rod to rotate, and when the second gear moves in the axial direction of the fourth gear, the second gear can always keep a meshed state with the fourth gear;
when the punch is arranged on the upper die holder, the butt joint sleeve separates the two arc-shaped clamping blocks, the idler wheels push the inclined table, the second connecting rod and the second sliding block to move upwards for a certain distance, and when the butt joint sleeve passes over the arc-shaped clamping blocks, the inclined table, the second connecting rod and the second sliding block return to the initial positions;
after the punch is arranged on the upper die holder, the screwing rod is screwed into the thread groove of the second sliding block, and then the rod sleeve is driven to drive the screwing rod, the second sliding block, the second connecting rod and the inclined table to move downwards, so that the rod part of the punch is further clamped and fixed by the two arc-shaped clamping blocks;
when the punch is removed from the upper die holder, the first rotating shafts drive the first gears to rotate, the third gears drive the first gears to rotate respectively, and the rotation of the first gears drives the first gears to rotate and sink towards the second direction of the sliding block by the rod sleeve, so that the screwing rod and the second gears move towards the second direction of the sliding groove; when the end part of the screwing rod moves to the notch of the thread groove of the sliding block II, the rotating shaft II drives the gear IV and the gear II to synchronously rotate, the gear II drives the screwing rod to rotate, so that the end part of the screwing rod is screwed into the thread groove, at the moment, the rotating shaft drives the gear III and the gear I to reversely rotate, the rod sleeve pulls the sliding block II, the connecting rod II and the inclined platform to ascend through the screwing rod, the inclined platform and the roller are completely separated, the elastic force of the spring releases and pushes the sliding block I to slide in the sliding groove I towards the sliding groove II, and the arc-shaped clamping blocks are separated from each other.
2. The punching die for the C-shaped steel for the steel structure according to claim 1, wherein a belt wheel I is sleeved on each of the two rotating shafts, a vertical shaft is rotatably arranged in the middle of the top of the upper die holder, a belt wheel II is sleeved on the vertical shaft, and the belt wheel II is in transmission connection with the two belt wheels I through a belt.
3. The punching die for the C-shaped steel for the steel structure according to claim 1, wherein the punching die for the C-shaped steel for the steel structure further comprises a lower die holder arranged below the upper die holder, the bottom of the lower die holder is supported on a workbench, the upper die holder is arranged on a bracket, a hanger plate is arranged above the upper die holder, the hanger plate is connected with the bracket through a hanger rod, two limiting rods are oppositely arranged at the top of the workbench, the lower die holder is positioned between the two limiting rods, and a limiting hole which is in sliding fit with the limiting rods is formed in the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110463681.5A CN113059058B (en) | 2021-04-26 | 2021-04-26 | Punching die for C-shaped steel for steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110463681.5A CN113059058B (en) | 2021-04-26 | 2021-04-26 | Punching die for C-shaped steel for steel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113059058A CN113059058A (en) | 2021-07-02 |
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| JPS55120432A (en) * | 1979-03-09 | 1980-09-16 | Toshiba Mach Co Ltd | Die mounting-dismounting device |
| CN203508753U (en) * | 2013-08-22 | 2014-04-02 | 中国第一汽车股份有限公司 | Male die quick-changing structure |
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| SU686803A1 (en) * | 1978-01-02 | 1979-09-25 | Marchenko Aleksandr V | Assembly for mounting quick-changing instrument in a die |
| JPH1119734A (en) * | 1997-06-30 | 1999-01-26 | Misumi Corp | Punch holding device in press die |
| CN107745100A (en) * | 2017-09-29 | 2018-03-02 | 重庆代发铸造有限公司 | Centrifugal casting machine |
| CN210280363U (en) * | 2019-03-25 | 2020-04-10 | 深圳市丰琦鑫五金制品有限公司 | Punching die for stainless steel |
| CN210065531U (en) * | 2019-05-30 | 2020-02-14 | 连云港晶沁石英制品有限公司 | Mold capable of enabling fused quartz crucible to have seeding function |
| CN110397825A (en) * | 2019-06-12 | 2019-11-01 | 淄博职业学院 | A kind of control platform of English teaching |
| CN210676552U (en) * | 2019-07-17 | 2020-06-05 | 宁波丰润协成电气有限公司 | Punching device for processing bus |
| CN210701917U (en) * | 2019-07-31 | 2020-06-09 | 佛山市正声五金制品有限公司 | Accurate location automatic punching machine stamping device |
| CN212858675U (en) * | 2020-06-28 | 2021-04-02 | 四川大学锦城学院 | Automatic clamping device for CNC milling machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120432A (en) * | 1979-03-09 | 1980-09-16 | Toshiba Mach Co Ltd | Die mounting-dismounting device |
| CN203508753U (en) * | 2013-08-22 | 2014-04-02 | 中国第一汽车股份有限公司 | Male die quick-changing structure |
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