CN113510184A - Bending and punching device - Google Patents
Bending and punching device Download PDFInfo
- Publication number
- CN113510184A CN113510184A CN202110475924.7A CN202110475924A CN113510184A CN 113510184 A CN113510184 A CN 113510184A CN 202110475924 A CN202110475924 A CN 202110475924A CN 113510184 A CN113510184 A CN 113510184A
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- die
- punching
- bending
- hydraulic cylinder
- male
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- 238000004080 punching Methods 0.000 title claims abstract description 138
- 238000005452 bending Methods 0.000 title claims abstract description 64
- 230000001360 synchronised effect Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 49
- 229910052802 copper Inorganic materials 0.000 abstract description 49
- 239000010949 copper Substances 0.000 abstract description 49
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
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
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
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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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The invention provides a bending and punching device, and belongs to the technical field of electric power construction. Comprises a machine base, a hydraulic cylinder and a turntable die; the base comprises a hydraulic cylinder mounting rack, a support frame and a base; the supporting frame is C-shaped, the bottom surface of the supporting frame is fixedly connected with the base, and the top of the supporting frame is fixedly connected with the hydraulic cylinder mounting frame; the hydraulic cylinder is fixedly arranged in the hydraulic cylinder mounting frame; the turntable die comprises an upper die, a lower die and a synchronous rod; a plurality of male punching dies are vertically arranged on the bottom surface of the upper die, and female punching dies are arranged in the coaxial positions of the lower die and the male punching dies in a hollowed-out manner; the upper die is also provided with a bending male die, and the lower die is also provided with a bending female die matched with the bending male die; the synchronous rod is rotationally connected with the base and the machine base and comprises a polygonal rod at the upper end and a cylindrical rod at the lower end; the upper die and the lower die are both sleeved on the polygonal rods. The copper bar punching and bending die is provided with a plurality of sets of punching dies and bending dies, round holes with various specifications can be punched on a copper bar, the punching and bending of the copper bar can also be realized, and different die assemblies do not need to be disassembled, assembled and replaced in the process.
Description
Technical Field
The invention belongs to the technical field of electric power construction, and particularly relates to a bending and punching device.
Background
The copper bar is also called copper busbar (or copper busbar), and the copper bar is widely applied to a complete set of distribution devices and plays a role in conveying current and connecting electrical equipment. The high-current conductive material is suitable for high-voltage and low-voltage electrical appliances, switch contacts, power distribution equipment, grounding connection and the like. When the non-finished copper bar is installed, the copper bar needs to be bent and punched. At present, the copper bar is bent manually by an installer, deviation may occur at the bending position, and the copper bar is inconvenient to be bent manually for some thicker or wider copper bars, the installer can use a hammer and other tools for assistance, but the copper bar or a plating layer of the copper bar is easily damaged by using the tools. Punching the copper bar is then often carried out with electric hand drill or bench drill, and the bench drill is heavier, and the field usage is inconvenient, and the drill bit that the electric hand drill can't install and be thicker can't open the coarse hole on the copper bar.
Under such circumstances, some portable devices that punch or bend copper bars have appeared. For example, patent document CN210045841U proposes a punching machine for copper bars of battery connectors, which comprises a C-shaped frame, a hydraulic cylinder and a punching die, wherein the punching die comprises a punch and a punching seat, it is characterized in that the hydraulic cylinder is fixed at the upper end of the C-shaped frame, the telescopic end of the hydraulic cylinder is provided with a mounting seat, the punch is screwed in the mounting seat, the lower end of the C-shaped frame is provided with a punching platform, the upper part of the punching platform is provided with a mounting groove, the mounting groove comprises an arc surface groove and a slot which are communicated, the middle part of the wall body of the cambered surface groove is provided with a limiting bulge, the middle part of the circumferential wall body of the punching seat is provided with a groove, the punching seat penetrates through the slot, the groove of the punching seat is nested on the limiting bulge, the body of the punching seat is inserted in the arc surface groove, the bottom of slot is equipped with the location blind hole, location blind hole cartridge has the locating pin, the lateral wall of locating pin and the seat lateral wall butt of punching a hole will punch a hole the seat horizontal direction and spacing in the mounting groove. This patent can utilize hydraulic mode to realize punching a hole to the copper bar, but the mounting hole of single specification only can be punched out to the cut-out press of this patent, need change the mould to punching a hole of different specifications, but the mould is changed inconveniently.
Still like patent document CN212703761U provides a copper bar bending device, including the base, the both sides of the one end of base are equipped with an ejector pin respectively, and two the ejector pin sets up relatively, the fixed pneumatic cylinder that is equipped with of the other end of base, be equipped with the clamp plate on the piston rod of pneumatic cylinder, the vertical setting of clamp plate, just the clamp plate is located two between the ejector pin. This patent can utilize hydraulic mode to realize nevertheless unable accurate control angle of buckling to the bending of copper bar.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bending and punching device aiming at the defects of the prior art.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a bending and punching device comprises a base, a hydraulic cylinder and a turntable die;
the machine base comprises a hydraulic cylinder mounting frame, a support frame and a base; the supporting frame is C-shaped, the bottom surface of the supporting frame is fixedly connected with the base, and the top of the supporting frame is fixedly connected with the hydraulic cylinder mounting frame; the hydraulic cylinder mounting rack is a hollow cylinder;
the hydraulic cylinder is fixedly arranged in the hydraulic cylinder mounting frame;
the turntable die comprises an upper die, a lower die and a synchronous rod; a plurality of male punching dies are vertically arranged on the bottom surface of the upper die, and the male punching dies are all cylinders; a punching female die is hollowed in the coaxial position of the lower die and the punching male die, the punching female die is a circular through hole, and the specification of the punching female die is matched with that of the punching male die; the upper die is also provided with a bending male die which is a flat triangular prism, the top surface of the bending male die is coplanar with the top surface of the upper die, and the bottom of the bending male die is a right angle; the lower die is also provided with a bending female die matched with the bending male die, and the bottom surface of the bending female die is coplanar with the bottom surface of the lower die; the bottom of the synchronous rod is rotatably connected with the base, the top of the synchronous rod is rotatably connected with the side face of the hydraulic cylinder mounting frame, the synchronous rod comprises a polygonal rod at the upper end and a cylindrical rod at the lower end, and the outer diameter of the cylindrical rod is larger than that of the polygonal rod; polygonal through holes matched with the specifications of the polygonal rods are hollowed in the centers of the upper die and the lower die; the upper die and the lower die are sleeved on the polygonal rods.
Furthermore, the bottom of the support frame and the base are all provided with circular discharge holes in a hollow mode, and the discharge holes are coaxial with the piston rod of the hydraulic cylinder.
Furthermore, specification marks are arranged beside the punching male die or the punching female die.
Furthermore, go up the mould with be provided with supporting spring between the lower mould, the bottom surface of lower mould is provided with a plurality of positioning groove that are used for the mould location, the top surface of support frame lower part be provided with positioning groove assorted location arch.
Furthermore, the top surface of going up the mould is provided with a plurality of fixture blocks, the top of fixture block is provided with the outer eaves that extend to the side, be provided with on the piston rod of pneumatic cylinder with the outer eaves matched with draw-in groove of fixture block.
Furthermore, a material returning plate is arranged on the side face of the hydraulic cylinder mounting frame.
Furthermore, a pointed bulge is arranged at the central position of the bottom surface of the punching male die.
Furthermore, a laser emitter is arranged in a piston rod of the hydraulic cylinder, and a laser hole for laser positioning is arranged at the axis of the punching male die in a hollow mode.
For the punching operation of the copper bar, two modes of drilling by a drill bit and pressure punching are available. When the copper bar is installed on site at present, the electric hand drill is mostly adopted to drill holes by utilizing the drill bit, but the size of the drill bit of the electric hand drill is limited, if a mounting hole with a large aperture needs to be drilled, the bench drill needs to be adopted to complete the drilling, the bench drill is heavy, and the site use is inconvenient. In this case, some portable devices capable of punching large apertures appear, but these portable punching apparatuses need to install different punching dies according to different punching apertures, and these punching dies include corresponding male dies (male dies) and female dies (female dies), so that on one hand, the replacement is inconvenient, and on the other hand, the portable punching apparatuses are easy to lose when used in the field, which affects the subsequent use. Therefore, in order to solve the above-mentioned drawbacks, a portable device fixedly provided with a plurality of sets of punching dies is required.
For a plurality of groups of arranged punching dies, specification matching and position matching of a male die and a female die are guaranteed when the punching dies are used, otherwise, punching failure is caused, and the dies are damaged in serious cases. When the copper bar punching die works, a copper bar to be punched needs to be placed between the male die and the female die, so that the male die and the female die are mostly in a separated state; when the punching die is switched, the male die and the female die need to be switched simultaneously, and the accurate positions of the male die and the female die need to be reset after the male die and the female die are switched, so that the male die and the female die are ensured to be in the coaxial position, otherwise, the matching degree can be influenced. Therefore, how to ensure the matching of the male mold and the female mold is a problem that must be solved by those skilled in the art, and the idea adopted by the prior art is as follows: the switching of the male mold or the female mold is reduced as much as possible, for example, only the female mold is switched by using the fixed male mold, or only the male mold is switched by using the fixed female mold, so that only the positioning of the male mold or the female mold is required.
For example, patent document CN209272256U proposes a high-voltage cabinet copper bar punching machine, a bottom die of the punching machine includes a first circular plate and a second circular plate, the first circular plate is provided with a plurality of circular hole channels, and the circular hole channels are provided with punching hole sleeves; counter bores corresponding to the round hole channels are also distributed on the second circular plate, cylindrical blocks are arranged in the counter bores, and grooves are formed in the cylindrical blocks. The punching machine is provided with a plurality of punching hole sleeves and cylindrical blocks (female dies) of different specifications, and when a punching die needs to be replaced, the bottom die can be rotated to rotate the corresponding punching hole sleeves to be under the punching head. The punching head (male die) of the punching machine adopts a fixed position, and only the female die needs to be switched in a rotating way when the punching machine is used, but the punching head (male die) still needs to be detached and replaced, so that the punching machine is inconvenient to use.
Also, for example, patent document CN211614006U proposes a quick punching device for copper bars, which is provided with a plurality of sets of waste holes (female dies) with different apertures and a punching nail (male die). Waste hole rigidity need will punch during the use the nail and remove waste hole top, nevertheless punch the nail fixed setting and can't change. For ensuring to punch, the diameter of the nail of punching is greater than the waste hole diameter, and the bottom is the toper structure, and this toper structure of during operation impresses the copper bar in the waste hole and accomplishes and punch a hole, but the round hole edge that the toper structure punched out is not the right angle, just can use after needing reprocessing to crackle influence use may appear in the edge.
In the invention, the upper die provided with the plurality of punching male dies and the lower die provided with the plurality of punching female dies are connected through the synchronous rod, the upper die and the lower die can synchronously rotate by utilizing the synchronous rod, and the punching male dies and the punching female dies are still in a coaxial state after the punching dies are switched. The male die and the female die are arranged in a one-to-one correspondence manner, so that the specification is completely matched, the punched edge is smooth, and the male die and the female die can be used without reprocessing.
In the invention, the upper die is also provided with a bending male die, the lower die is also provided with a corresponding bending female die, so that the copper bar can be bent, and the bottoms of the bending male die and the bending female die are both subjected to fillet treatment, so that cracks or folds of the copper bar caused by excessive bending can be avoided.
In the invention, the bottom surface of the lower die is provided with a plurality of positioning grooves for positioning the die, the top surface of the lower part of the support frame is provided with positioning bulges matched with the positioning grooves, the positioning grooves and the positioning bulges can directly position the punching female die right above the discharging hole, and the punching male die can be positioned right below the hydraulic cylinder, so that the die can be used without any position adjustment after die switching.
According to the invention, the pointed bulge is arranged at the bottom of the punching male die, so that the copper bar is convenient to position during punching, and the copper bar can be prevented from shifting during punching. The laser emitter can be arranged in the piston rod, the laser hole is hollowed in the punching male die, and a laser beam emitted by the laser emitter can mark the center of the punched hole through the laser hole, so that a worker can conveniently position the copper bar before punching.
According to the invention, the punching and bending of the copper bar are realized by adopting a hydraulic mode, round holes with various specifications can be punched on the copper bar, the punching and bending of the copper bar can also be realized, different die assemblies do not need to be disassembled and replaced in the process, the copper bar punching and bending die can be suitable for copper bars with various specifications, the application range is wide, and the installation efficiency of the copper bar can be greatly improved.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1: the structure of embodiment 1 of the invention is schematically shown;
FIG. 2: a cross-sectional view of inventive example 1;
FIG. 3: the structure schematic diagram of the turntable die in embodiment 1 of the invention;
FIG. 4: a schematic partial structure diagram of embodiment 2 of the present invention;
FIG. 5: a partial sectional view of embodiment 3 of the present invention;
FIG. 6: a schematic partial structure diagram of embodiment 4 of the present invention;
FIG. 7: a partial sectional view of embodiment 5 of the invention;
wherein: 1-machine base, 11-base, 111-discharge hole, 12-support frame, 121-positioning protrusion, 13-hydraulic cylinder mounting frame, 131-stripper plate, 2-hydraulic cylinder, 21-piston rod, 211-clamping groove, 3-turntable die, 31-upper die, 311-punching male die, 312-bending male die, 313-polygonal through hole, 314-pointed protrusion, 315-clamping block, 316-laser hole, 32-lower die, 321-punching female die, 322-bending female die, 323-positioning groove, 33-synchronizing rod, 331-polygonal rod, 332-cylindrical rod, 34-supporting spring and 4-laser emitter.
Detailed Description
For a better understanding of the invention, the following description is given in conjunction with the examples and the accompanying drawings, but the invention is not limited to the examples. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details.
It is noted that in the description of the present invention, the terms "horizontal", "vertical", "bottom", "top", "upper", "lower", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular manner, and thus, should not be construed as limiting the present invention.
Example 1:
referring to fig. 1 to 3, the bending and punching apparatus provided in this embodiment includes a base 1, a hydraulic cylinder 2, and a turntable die 3.
The base 1 sequentially comprises a hydraulic cylinder mounting frame 13, a support frame 12 and a base 11 from top to bottom; the base 11 is a plate-shaped structure and is horizontally arranged; the support frame 12 is integrally C-shaped, the bottom surface of the support frame is fixedly connected with the top surface of the base 11, and the top of the support frame is provided with a hydraulic cylinder mounting frame 13; the hydraulic cylinder mounting frame 13 is a hollow cylinder which is vertically arranged, the central axis is vertical, and the bottom is provided with a through hole for the piston rod 21 of the hydraulic cylinder 2 to enter and exit.
The hydraulic cylinder 2 of the embodiment is cylindrical, and the piston rod 21 is arranged vertically downwards; the hydraulic cylinder 2 is fixedly arranged in the hydraulic cylinder mounting frame 13.
The turntable die 3 includes an upper die 31, a lower die 32, and a synchronization rod 33. The upper die 31 and the lower die 32 are both horizontally and coaxially arranged; a plurality of punching male dies 311 are vertically arranged at the edge of the bottom surface of the upper die 31; the punching male die 311 is a cylinder, the central axis of the punching male die is parallel to the central axis of the upper die 31, and the distances between the punching male die 311 and the central axis of the upper die 31 are equal; the edge of the lower die 32 is provided with a female punching die 321 in a hollow manner at the coaxial position with the male punching die 311, the female punching die 321 are all circular through holes, and the inner diameter of the female punching die is matched with the outer diameter of the male punching die 311. A bending male die 312 is further arranged at the edge of the upper die 31, the bending male die 312 is a triangular prism horizontally arranged, the top surface of the bending male die is coplanar with the top surface of the upper die 31, and the bottom of the bending male die is a right angle; a bending female die 322 is further arranged at the edge of the lower die 32, the bending female die 322 is a right-angle groove, the position of the bending female die 322 corresponds to that of the bending male die 312, the specification of the bending female die is matched with that of the bending male die 312, and the bottom surface of the bending female die is coplanar with that of the lower die 32; the bottom of the male die 312 and the bottom of the female die 322 are both rounded, so that the copper bar is prevented from cracking or wrinkling due to bending transition.
The synchronous rod 33 is used for enabling the upper die 31 and the lower die 32 to synchronously rotate, the upper end of the synchronous rod is provided with a polygonal rod 331, the lower end of the synchronous rod is provided with a cylindrical rod 332, and the outer diameter of the cylindrical rod 332 is larger than that of the polygonal rod 331; polygonal through holes 313 for the polygonal rods 331 to go in and out are hollowed in the centers of the upper die 31 and the lower die 32. The upper die 31 and the lower die 32 of this embodiment are both sleeved on the polygonal rod 331, and when the upper die 31 or the lower die 32 rotates, both the lower die 32 or the upper die 31 can be driven to rotate synchronously, so as to ensure that the punching male die 311 and the corresponding punching female die 321 are in a coaxial position.
The synchronous rod 33 is vertically arranged, the bottom end of the synchronous rod is rotatably connected with the base 11, and the upper end of the synchronous rod is rotatably connected with the hydraulic cylinder mounting frame 13; the height of the top surface of the cylindrical rod 332 is consistent with the height of the top surface of the lower part of the support frame 12, when the lower die 32 is mounted on the polygonal rod 331, the cylindrical rod 332 can support the lower die 32, and the top surface of the lower part of the support frame 12 can support the punching male die 311 and the bending male die 312. The bottom of the support frame 12 and the base 11 are both provided with a circular discharge hole 111 in a hollowed-out manner, and the discharge hole 111 is coaxial with the piston rod 21.
The male punching die 311 provided in this embodiment has multiple specifications, and the specifications of the male punching die 311 or the female punching die 321 are identified on the side surfaces of the upper die 31 and the lower die 32, so that the worker can conveniently recognize the male punching die. Magnets are embedded in the top surface of the upper die 31 at positions corresponding to the punching male die 311, so that the upper die 31 can be attracted to the piston rod 21.
The hydraulic cylinder 2 of the embodiment is driven by a hydraulic pump, and is connected with the hydraulic pump when in use, and the hydraulic pump can adopt a manual hydraulic pump and also can adopt an electric hydraulic pump.
When the copper bar punching machine works, if the copper bar needs to be punched, the upper die 31 or the lower die 32 can be rotated, so that the punching female die 321 and the discharge hole 111 with corresponding specifications are positioned at the same axial position (as shown in fig. 2), the copper bar to be punched is placed at the moment, the hydraulic pump is started, and the piston rod 21 extends out to drive the punching male die 311 to punch. If the copper bar needs to be bent, the upper die 31 or the lower die 32 is rotated to enable the bending male die 312 and the bending female die 322 to be located below the piston rod 21, the copper bar to be bent is placed on the bending male die at the moment, the hydraulic pump is started, and the piston rod 21 extends out to drive the bending male die 312 to perform bending operation.
Example 2:
referring to fig. 4, the bending and punching apparatus provided in this embodiment is improved as follows compared with embodiment 1: a pointed protrusion 314 is vertically and downwards arranged at the center of the bottom surface of the punching male die 311.
The pointed protrusion 314 is arranged, so that positioning is facilitated when the copper bar is punched; on the other hand can prevent that the copper bar from shifting when punching a hole.
Example 3:
referring to fig. 5, the bending and punching apparatus provided in this embodiment is improved as follows compared with embodiment 2: a supporting spring 34 is arranged between the upper die 31 and the lower die 32, a plurality of positioning grooves 323 are arranged on the bottom surface of the lower die 32, and a positioning protrusion 121 is arranged at a position corresponding to the top surface of the lower part of the support frame 12.
The supporting spring 34 is sleeved on the polygonal rod 331, is arranged between the upper die 31 and the lower die 32, and is used for supporting the upper die 31 and the lower die 32. The bottom surface of the lower die 32 is provided with positioning grooves 323 at positions close to the punching female die 321 and the bending female die 322, the positioning grooves 323 are arranged around the central axis of the lower die 32 and are circular grooves, and the axes are located on the vertical plane where the central axis of the lower die 32 and the central axis of the punching female die 321 are located and have equal distances from the central axis of the lower die 32. The top surface of the lower portion of the supporting frame 12 is provided with a positioning protrusion 121 at a position corresponding to the positioning groove 323, the positioning protrusion 121 is a circular protrusion, the specification of which matches with that of the positioning groove 323, and the positioning protrusion 121 can be clamped into the positioning groove 323.
When the lower die 32 of this embodiment is rotated, when the positioning protrusion 121 is engaged in the positioning groove 323, the bending female die 322 can be located right above the discharge hole 111 (the bending male die 312 is located right below the piston rod 21), or the corresponding punching female die 321 can be located right above the discharge hole 111 and the two are coaxial. Therefore, the positioning groove 323 and the positioning protrusion 121 provided by the embodiment can position the punching female die 321 and the bending female die 322 at accurate positions, so that manual die position calibration is avoided, and the use is more convenient.
The support spring 34 is provided to make the fitting between the positioning recess 323 and the positioning projection 121 more firm, to prevent the mold from being displaced during use, and to make the fitting of the upper mold 31 and the piston rod 21 more firm.
Example 4:
referring to fig. 6, the bending and punching apparatus provided in this embodiment is improved as follows compared with embodiment 3: the top surface of the upper die 31 is provided with a plurality of clamping blocks 315, the piston rod 21 is provided with clamping grooves 211 matched with the clamping blocks 315, and the hydraulic cylinder mounting frame 13 is provided with a stripper plate 131.
A plurality of clamping blocks 315 are arranged on the top surface of the upper die 31 around the central axis, the clamping blocks 315 are all protruded upwards, the axes are located on a vertical plane where the central axis of the upper die 31 and the central axis of the punching male die 311 are located, the clamping blocks 315 are all cylinders in the embodiment, and the top of each clamping block is provided with an outer brim extending towards the side surface; the clamping groove 211 is formed in the bottom of the piston rod 21 in a surrounding mode, the outer eaves of the clamping blocks 315 can be clamped into the clamping groove 211, and when the piston rod 21 is vertically and upwards retracted, the upper die 31 can be lifted up at the same time.
The stripper plate 131 is a plate-shaped structure, and the top end of the stripper plate is rotatably connected with the side surface of the hydraulic cylinder mounting frame 13. After the punching of the present invention is completed, the upper die 31 moves upward along with the piston rod 21, and at this time, the stripper plate 131 can prevent the copper bar from moving upward, so that the copper bar is released from the male die 311.
Example 5:
referring to fig. 7, the bending and punching apparatus provided in this embodiment is improved as follows compared with embodiment 4: the piston rod 21 is provided with a laser emitter 4 inside, and the upper die 31 is provided with a laser hole 316 for laser positioning.
The laser emitter 4 is vertically arranged inside the piston rod 21, is overlapped with the central axis of the piston rod 21 and is used for emitting laser beams vertically downwards; the punching male die 311 is provided with a laser hole 316 along the central axis in a hollow manner, and when the laser beam emitted by the laser emitter 4 passes through the laser hole 316, the irradiated position is the central position of the punching male die 311.
The laser beam emitted by the laser emitter 4 provided by the embodiment can mark the center of the punched hole through the laser hole, so that the worker can conveniently position the punched hole before punching.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (8)
1. The utility model provides a perforating device bends which characterized in that: comprises a machine base, a hydraulic cylinder and a turntable die;
the machine base comprises a hydraulic cylinder mounting frame, a support frame and a base; the supporting frame is C-shaped, the bottom surface of the supporting frame is fixedly connected with the base, and the top of the supporting frame is fixedly connected with the hydraulic cylinder mounting frame; the hydraulic cylinder mounting rack is a hollow cylinder;
the hydraulic cylinder is fixedly arranged in the hydraulic cylinder mounting frame;
the turntable die comprises an upper die, a lower die and a synchronous rod; a plurality of male punching dies are vertically arranged on the bottom surface of the upper die, and the male punching dies are all cylinders; a punching female die is hollowed in the coaxial position of the lower die and the punching male die, the punching female die is a circular through hole, and the specification of the punching female die is matched with that of the punching male die; the upper die is also provided with a bending male die which is a flat triangular prism, the top surface of the bending male die is coplanar with the top surface of the upper die, and the bottom of the bending male die is a right angle; the lower die is also provided with a bending female die matched with the bending male die, and the bottom surface of the bending female die is coplanar with the bottom surface of the lower die; the bottom of the synchronous rod is rotatably connected with the base, the top of the synchronous rod is rotatably connected with the side face of the hydraulic cylinder mounting frame, the synchronous rod comprises a polygonal rod at the upper end and a cylindrical rod at the lower end, and the outer diameter of the cylindrical rod is larger than that of the polygonal rod; polygonal through holes matched with the specifications of the polygonal rods are hollowed in the centers of the upper die and the lower die; the upper die and the lower die are sleeved on the polygonal rods.
2. The bend punching device according to claim 1, characterized in that: the bottom of the support frame and the base are all provided with circular discharge holes in a hollow mode, and the discharge holes are coaxial with piston rods of the hydraulic cylinders.
3. The bend punching device according to claim 2, characterized in that: and specification marks are arranged beside the punching male die or the punching female die.
4. The bend punching device according to claim 3, characterized in that: the mould comprises an upper mould and a lower mould, wherein a supporting spring is arranged between the upper mould and the lower mould, a plurality of positioning grooves used for positioning the mould are arranged on the bottom surface of the lower mould, and positioning bulges matched with the positioning grooves are arranged on the top surface of the lower part of the supporting frame.
5. The bend punching device according to claim 4, wherein: the top surface of going up the mould is provided with a plurality of fixture blocks, the top of fixture block is provided with the outer eaves that extends to the side, be provided with on the piston rod of pneumatic cylinder with the outer eaves matched with draw-in groove of fixture block.
6. The bend punching device according to claim 5, characterized in that: and a material returning plate is arranged on the side surface of the hydraulic cylinder mounting frame.
7. The bend punching device according to claim 6, characterized in that: and a pointed bulge is arranged at the central position of the bottom surface of the punching male die.
8. The bend punching device according to claim 6, characterized in that: a laser emitter is arranged in a piston rod of the hydraulic cylinder, and a laser hole for laser positioning is arranged at the axis of the punching male die in a hollow mode.
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|---|---|---|---|
| CN202110475924.7A CN113510184B (en) | 2021-04-29 | 2021-04-29 | Bending and punching device |
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| CN202110475924.7A CN113510184B (en) | 2021-04-29 | 2021-04-29 | Bending and punching device |
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| CN113510184A true CN113510184A (en) | 2021-10-19 |
| CN113510184B CN113510184B (en) | 2023-11-14 |
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| CN115921604A (en) * | 2022-11-17 | 2023-04-07 | 上海槎南工贸发展有限公司 | Prevent intelligent sheet metal device of integral type of buckling of dashing of offset |
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| CN113510184B (en) | 2023-11-14 |
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