CN111687309A - Metal stamping die and stamping process - Google Patents
Metal stamping die and stamping process Download PDFInfo
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- CN111687309A CN111687309A CN202010410339.4A CN202010410339A CN111687309A CN 111687309 A CN111687309 A CN 111687309A CN 202010410339 A CN202010410339 A CN 202010410339A CN 111687309 A CN111687309 A CN 111687309A
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- die
- fixing seat
- internal thread
- top end
- stamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
Abstract
The invention relates to the technical field of stamping dies, in particular to a metal stamping die and a stamping process, which comprises an upper die fixing seat, a lower die fixing seat and a die shank, wherein the top end of the upper die fixing seat is provided with the die shank; the internal thread fixing sleeve and the die handle are arranged at the bottom end of the upper die fixing seat, and three pressure relief ports are uniformly distributed in the internal thread fixing sleeve along the axial direction; the top end of the male die is coaxially provided with a threaded column, and the threaded column is screwed in the internal thread fixing sleeve; the edge pressing device is arranged at the bottom end of the upper die fixing seat; the triangular positioning clamp holder comprises a triangular positioning clamp holder, wherein an abutting part of the triangular positioning clamp holder is arranged on the pressure relief opening in a sliding mode, starting parts of the triangular positioning clamp holder are uniformly distributed at the top end of a pressure edge part of the edge pressing device, and an abutting working part is connected with the starting working part in a sliding mode; the four corners of the female die fixing seat are connected to the bottom of the upper die fixing seat in a sliding manner through the guide positioners; the female die and the female die fixing seat are arranged at the top end of the female die fixing seat, and the male die and the female die can be freely replaced by the stamping die, so that stamping parts in different shapes can be conveniently produced by using the same press.
Description
Technical Field
The invention relates to the technical field of stamping dies, in particular to a metal stamping die and a stamping process.
Background
The stamping is a forming method in which a press and a die are used to apply external force to a plate, a strip, a pipe, a profile, etc. to cause plastic deformation or separation, thereby obtaining a workpiece (stamped part) of a desired shape and size. Stamping and forging are plastic working (or called pressure working), and are called forging and pressing. The stamped blanks are mainly hot and cold rolled steel sheets and strips. In the world, 60-70% of steel materials are plates, and most of the plates are punched to form finished products. The body, chassis, oil tank, radiator sheet, boiler steam drum, shell of container, iron core silicon steel sheet of motor and electric appliance are all made by punching. There are also a large number of stamped parts in products such as instruments, household appliances, bicycles, office machines, and household utensils.
The stamping process is a production technology for obtaining product parts with certain shape, size and performance by directly applying deformation force to a plate in a die by means of the power of conventional or special stamping equipment and deforming the plate. The plate, the die and the equipment are three elements of stamping processing. The hot stamping and the cold stamping are divided according to the stamping processing temperature. The former is suitable for processing sheet materials with high deformation resistance and poor plasticity; the latter is carried out at room temperature and is a common stamping method for thin sheets. It is one of the main methods of metal plastic working (or pressure working), and also belongs to the material forming engineering technology. The die used for stamping is called stamping die, and is called stamping die for short. A die is a special tool for batch processing of material (metallic or non-metallic) into the desired punches. The stamping die is of great importance in stamping, and batch stamping production is difficult to carry out without the stamping die meeting the requirements; without an advanced die, an advanced stamping process cannot be achieved. The three elements of the stamping process, the die, the stamping equipment and the stamping material form the stamping processing, and the stamping part can be obtained only by combining the three elements. The stamping design is the basis of stamping production preparation and is the basis of formal organization production, the advancement and the rationality of the stamping production process and the economical efficiency of the production cost are reflected, and the production technical level of a factory is reflected to a certain extent. The traditional stamping die has the problems that the head of the stamping die cannot be replaced and the work is unstable.
Chinese patent CN201710912333.5 discloses a stamping process, which comprises the following steps: A. preparing materials: cleaning a large plate, and shearing the large plate into small plates by using a plate shearing machine; B. stamping: placing a small plate on the supporting plate, selecting a stamping head corresponding to the stamping size, opening a valve corresponding to the stamping head, and then pushing the piston rod; C. taking materials: and taking away the stamped part ejected by the ejector plate.
The stamping head distributed by the process is single in shape and unstable in structure in a stamping state.
Disclosure of Invention
The invention aims to provide a metal stamping die and a stamping process, and the technical scheme solves the problem of freely replacing a stamping die head.
In order to solve the technical problems, the invention provides the following technical scheme:
a metal stamping die comprises an upper die fixing seat, wherein a die shank for fixedly connecting a working end of a press is arranged in the center of the top end of the upper die fixing seat along the vertical direction; the die comprises an upper die fixing seat, an inner thread fixing sleeve and a die handle, wherein the upper die fixing seat is provided with a die handle; the top end of the male die is coaxially provided with a threaded column, and the male die is coaxially screwed into the inner threaded fixing sleeve through the threaded column; the horizontal plane of the working end of the edge presser is lower than the bottom end of the male die and is elastically arranged at the bottom end of the upper die fixing seat; the triangular positioning clamp holder is characterized in that a butting working part of the triangular positioning clamp holder is arranged on the pressure yielding port in a radial sliding mode along the internal thread fixing sleeve, starting working parts of the triangular positioning clamp holder are uniformly distributed at the top end of a pressure holding part of the edge pressing device along the axial direction of the internal thread fixing sleeve, the butting working part is in sliding connection with the starting working part, and in a stamping state, the pressure holding part of the edge pressing device vertically ascends to drive the starting part of the triangular positioning clamp holder to ascend, so that the starting part drives the butting part to be in sliding butting connection with the external circumferential surface of the threaded column on the pressure yielding port along the; the four corners of the female die fixing seat are vertically and slidably connected to the bottom of the upper die fixing seat through guide locators; and the female die fixing seat and the male die are coaxially arranged at the top end of the female die fixing seat.
Preferably, the binder comprises: the vertical projection of the edge pressing plate is superposed with the vertical projection of the internal thread fixing sleeve, four corners of the edge pressing plate are connected with four corners of the upper die fixing seat in a sliding mode through ball type guide pillars, and a first avoidance hole in sliding fit with the male die is axially formed in the center of the edge pressing plate; and the edge pressing spring is coaxially sleeved on the ball type guide post, and two ends of the edge pressing spring are respectively abutted against the bottom end of the upper die fixing seat and the top end of the edge pressing plate.
Preferably, the bottom end of the pressure relief opening is provided with a third dovetail wedge along the radial direction; the triangle positioning holder comprises: the fixing ring is fixedly arranged on the internal thread fixing sleeve, and a first dovetail groove is arranged at the bottom end of the fixing ring along the radial direction; the deformation sliding block is provided with a vertical abutting edge towards one side of the axis of the internal thread fixing sleeve, a first inclined plane sliding edge which inclines towards the top end of the edge pressing part of the edge pressing device is arranged on the opposite side of the deformation sliding block and the edge pressing part of the edge pressing device, and a second dovetail groove which is in sliding connection with the first dovetail groove and the third dovetail wedge is respectively arranged at the upper end and the lower end of the deformation sliding block; the fixed butt joint block is arranged at the top end of the edge pressing part of the edge pressing device along the radial direction of the internal thread fixing sleeve, a second inclined plane butt joint edge is arranged on the fixed butt joint block towards the axis side of the internal thread fixing sleeve, and the second inclined plane butt joint edge is in sliding fit with the first inclined plane sliding edge.
Preferably, the ball guide column comprises: the fixing columns are vertically arranged at four corners of the blank holder and are in sliding connection with four corners of the upper die fixing seat, and the circumferential surfaces of the fixing columns are uniformly distributed with placing grooves vertical to the axis along the axial direction; the fine spring and the ball are sequentially and coaxially arranged in the placing groove; the fixing sleeve is coaxially sleeved on the fixing column, limiting holes with the diameter smaller than that of the balls are uniformly distributed on the circumferential surface of the fixing sleeve, and one side of each ball is positioned outside the limiting hole under the action of the elastic force of the fine spring in a working state; and the limiting ring is coaxially arranged at the penetrating position of the upper die fixing seat and the placing groove.
Preferably, the ball type guide pillar further comprises a bearing which is coaxially arranged at the top end of the placing groove.
Preferably, the first beveled sliding edge is angled less than ninety degrees and greater than forty-five degrees from the top of the binder section.
Preferably, the first inclined plane sliding edge is obliquely provided with a second dovetail wedge, the third dovetail groove is obliquely provided with a third dovetail groove, and the second dovetail wedge is in embedded sliding fit with the third dovetail groove.
Preferably, fixing pins for fixedly connecting the female die penetrate through the inside of the female die fixing seat along the axial direction.
Preferably, the guiding locator comprises: the long pins are vertically arranged at four corners of the top end of the female die fixing seat, vertically penetrate through four corners of the upper die fixing seat and are in sliding fit with the female die fixing seat through the first guide sleeves.
A metal stamping die and a stamping process comprise the following steps: firstly, cleaning a prepared plate, cleaning a large plate, and cutting the large plate into small plates with proper sizes by using a plate shearing machine;
secondly, selecting an appropriate male die and an appropriate female die according to the shape of a required stamping finished product, and according to the installation operation requirement, coaxially screwing the male die into the internal thread fixing sleeve through a thread column, wherein the female die and the male die are coaxially arranged at the top end of a female die fixing seat;
thirdly, placing a plate, and placing the plate at the top end of the female die;
fourthly, starting a press machine to enable the male die to vertically move towards the female die;
and step five, closing the press, and taking out the stamped part punched by the press after the working end of the press is reset.
Compared with the prior art, the invention has the beneficial effects that:
the die is suitable for punching round finished products; before the work begins, a stamping die is arranged on a press machine, a die shank is coaxially and fixedly connected with the bottom end of the press machine, a male die and a female die which are suitable for use are selected according to the shape of a required stamping finished product, threaded columns are arranged at the top ends of all the male dies along the axial direction, the male dies are coaxially screwed into an internal threaded fixing sleeve through the threaded columns according to the installation operation requirement, and the female die and the male dies are coaxially arranged at the top end of a female die fixing seat;
starting to work, placing the raw material on the female die, starting the press machine, so that the working end of the press machine vertically descends to drive the upper die fixing seat to vertically descend, and the horizontal plane of the edge pressing part of the edge pressing device is lower than the bottom end of the male die and is elastically arranged at the bottom end of the upper die fixing seat, so that when the upper die fixing seat descends to a certain height, the edge pressing part of the edge pressing device firstly abuts against the periphery of the top end of the raw material, and the raw material cannot move during stamping;
the upper die fixing seat continues to descend under the action of the elasticity of the beading device, so that the beading device beading part is relatively close to the upper die fixing seat, the beading device beading part is relatively vertically ascended to drive the starting part of the triangular positioning clamp to ascend, the starting part drives the abutting part to slide along the internal thread fixing sleeve in the radial direction of the yielding port to abut against the outer circumferential surface of the threaded column, the circumferential surface of the threaded column is positioned and clamped along the radial direction of the triangle, the male die is thoroughly and tightly connected with the upper die fixing seat, and the threaded column is prevented from being broken or deviating from the axis due to overlarge stamping force; the male die is pressed downwards to punch the raw material into a specified shape on the female die;
after the punching press is completed, the working end of the press machine resets, the male die is separated from the female die, after the upper die fixing seat rises for a certain distance, the edge pressing part of the edge pressing device is separated from the top end of a finished product, and the finished product is taken out of the female die.
The punch and die can be freely replaced by the stamping die, so that stamping parts in different shapes can be conveniently produced by using the same press.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view at section A of FIG. 2;
FIG. 4 is a partial cutaway perspective view of the present invention;
FIG. 5 is an axial cross-sectional view of the ball guide post of the present invention;
FIG. 6 is a partial enlarged view of FIG. 5 at B;
FIG. 7 is a perspective view of the cam positioning clamp of the present invention;
FIGS. 8 and 9 are exploded perspective views of the triangularly-positioned holder of the present invention from two different perspectives;
fig. 10 is an exploded perspective view of the die holder and the die of the present invention.
The reference numbers in the figures are:
1. an upper die fixing seat; 1a, a die shank;
2. an internal thread fixing sleeve; 2a, a pressure relief opening; 2a1, third dovetail wedge;
3. a male die; 3a, a threaded column;
4. an edge presser; 4a, pressing a side plate; 4a1, a first avoidance hole; 4b, ball type guide posts; 4b1, fixed column; 4b2, a placement groove; 4b3, a fixation sleeve; 4b4, limiting hole; 4b5, fine spring; 4b6, balls; 4b7, a second guide sleeve; 4b8, a spacing collar; 4c, a blank holder spring;
5. a triangular positioning clamp holder; 5a, a fixing ring; 5a1, a first dovetail groove; 5b, deforming the sliding block; 5b1, vertical abutting edges; 5b2, a first beveled sliding edge; 5b3, a first dovetail wedge; 5b4, a second dovetail groove; 5b5, second dovetail wedge; 5c, fixing the abutting block; 5c1, the second bevel abutting edge; 5c2, third dovetail groove;
6. a female die fixing seat; 6a, fixing pins;
7. a female die;
8. a guide locator; 8a, a long pin; 8b and a first guide sleeve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like 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 referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Referring to fig. 1 to 10, the metal stamping die comprises an upper die fixing seat 1, wherein a die shank 1a for fixedly connecting a working end of a press is arranged at the center of the top end of the upper die fixing seat 1 along the vertical direction; the die comprises an upper die fixing seat 1, an inner thread fixing sleeve 2, a die handle 1a, a die handle, a die holder and a die holder, wherein the inner thread fixing sleeve 2 and the die handle 1a are coaxially arranged at the bottom end of the upper die fixing seat 1, and three pressure relief ports 2a are uniformly distributed in the inner thread fixing sleeve 2 along the axial direction; the top end of the male die 3 is coaxially provided with a threaded column 3a, and the male die 3 is coaxially screwed in the internal threaded fixing sleeve 2 through the threaded column 3 a; the horizontal plane of the working end of the edge presser 4 is lower than the bottom end of the male die 3 and is elastically arranged at the bottom end of the upper die fixing seat 1; the triangular positioning clamp holder 5 is arranged on the pressure yielding port 2a in a radially sliding mode along the internal thread fixing sleeve 2, the start working parts of the triangular positioning clamp holder 5 are uniformly distributed at the top end of the pressure holding part of the edge pressing device 4 along the axial direction of the internal thread fixing sleeve 2, the butt working parts are connected with the start working parts in a sliding mode, and in a stamping state, the pressure holding part of the edge pressing device 4 vertically rises to drive the start part of the triangular positioning clamp holder 5 to rise, so that the start part drives the butt part to slide and butt on the outer circumferential surface of the threaded column 3a along the internal thread fixing sleeve 2 in the radial direction of the pressure yielding port 2 a; the four corners of the female die fixing seat 6 are vertically and slidably connected to the bottom of the upper die fixing seat 1 through guide locators 8; and the female die 7 is arranged on the top end of the female die fixing seat 6 coaxially with the male die 3.
The die is suitable for punching round finished products; before the work begins, a stamping die is arranged on a press machine, a die shank 1a is coaxially and fixedly connected with the bottom end of the press machine, a male die 3 and a female die 7 which are suitable for use are selected according to the shape of a required stamping finished product, threaded columns 3a are axially arranged at the top ends of all the male dies 3, the male dies 3 are coaxially screwed into an internal threaded fixing sleeve 2 through the threaded columns 3a according to the installation operation requirement, and the female die 7 and the male dies 3 are coaxially arranged at the top end of a female die fixing seat 6;
starting to work, placing the raw material on the female die 7, starting the press machine, so that the working end of the press machine vertically descends to drive the upper die fixing seat 1 to vertically descend, and the horizontal plane of the edge pressing part of the edge pressing device 4 is lower than the bottom end of the male die 3 and is elastically arranged at the bottom end of the upper die fixing seat 1, so that when the upper die fixing seat 1 descends to a certain height, the edge pressing part of the edge pressing device 4 is firstly abutted to the periphery of the top end of the raw material, and therefore the raw material cannot move during stamping;
the upper die fixing seat 1 continuously descends under the action of the elasticity of the beader 4, so that the beader 4 is relatively close to the upper die fixing seat 1, the beader 4 is relatively vertically ascended to drive the starting part of the triangular positioning clamp holder 5 to ascend, the starting part drives the abutting part to slide on the pressure yielding port 2a along the radial direction of the internal thread fixing sleeve 2 to abut against the outer circumferential surface of the threaded column 3a, the circumferential surface of the threaded column 3a is positioned and clamped along the radial direction of the triangle, the male die 3 is completely and tightly connected with the upper die fixing seat 1, and the threaded column 3a is prevented from being broken or deviating from the axis due to overlarge stamping force; the male die 3 is pressed down to punch the raw material into a specified shape on the female die 7;
after the punching press was accomplished, the reset of press work end, terrace die 3 break away from die 7, after a section distance that rises of upper die fixing base 1, 4 crimping portions of beader break away from the finished product top again, again with the finished product take out from die 7 can, 6 four corners of die fixing base pass through the vertical sliding connection of guide locator 8 in last die fixing base 1 bottom for go up die fixing base 1 when vertical decline, make terrace die 3 and die 7 remain coaxial throughout through the four corners positioning action, thereby be convenient for continuous punching press.
As shown in fig. 1 and 8, the binder 4 includes: the vertical projection of the edge pressing plate 4a and the internal thread fixing sleeve 2 is superposed, four corners of the edge pressing plate 4a are in sliding connection with four corners of the upper die fixing seat 1 through ball type guide posts 4b, and a first avoidance hole 4a1 in sliding fit with the male die 3 is axially formed in the center of the edge pressing plate 4 a; and the edge pressing spring 4c is coaxially sleeved on the ball type guide post 4b, and two ends of the edge pressing spring 4c are respectively abutted against the bottom end of the upper die fixing seat 1 and the top end of the edge pressing plate 4 a.
The four corners of the edge pressing plate 4a are arranged at the bottom end of the upper die fixing seat 1 in a sliding mode through the ball type guide pillars 4b, so that the horizontal plane of the bottom end of the edge pressing plate 4a is lower than the bottom end of the male die 3 when the working end of the press machine vertically descends, the die shank 1a and the edge pressing plate 4a synchronously vertically descend, the edge pressing plate 4a is firstly abutted to the top end of the raw material to stop moving, the die shank 1a continues to descend, the elastic force of the edge pressing spring 4c of the edge pressing spring descends to enable the male die 3 to penetrate through the first avoiding hole 4a1 to punch the raw material to obtain a required finished product shape, in the punching process, the first avoiding hole 4a1 is always abutted to the top end of the raw material, the raw material is prevented from moving in the punching process, and the punching is.
As shown in fig. 7, 8 and 9, the bottom end of the pressure relief opening 2a is provided with a third dovetail wedge 2a1 along the radial direction; the triangular positioning clamp 5 comprises: the fixing ring 5a is fixedly arranged on the internal thread fixing sleeve 2, and a first dovetail groove 5a1 is arranged at the bottom end of the fixing ring 5a along the radial direction; the deformation sliding block 5b is provided with a vertical abutting edge 5b1 facing one side of the axis of the internal thread fixing sleeve 2, a first inclined plane sliding edge 5b2 inclined towards the top end of the edge pressing part of the edge pressing device 4 is arranged on the opposite side of the deformation sliding block 5b and the edge pressing part of the edge pressing device 4, and the upper end and the lower end of the deformation sliding block 5b are respectively provided with a second dovetail groove 5b4 in sliding connection with the first dovetail groove 5a1 and the third dovetail wedge 2a 1; fixed butt piece 5c, fixed butt piece 5c radially sets up on the top of the blank holder portion of blank pressing device 4 along the fixed cover 2 of internal thread, and fixed butt piece 5c is provided with second inclined plane butt joint limit 5c1 towards the fixed cover 2 axis side of internal thread, second inclined plane butt joint limit 5c1 and first inclined plane slip limit 5b2 sliding fit.
The first dovetail wedge 5b3 and the second dovetail groove 5b4 at the upper end and the lower end of the deformed sliding block 5b are respectively arranged on the first dovetail groove 5a1 and the third dovetail groove 2a1 in a sliding manner, so that the deformed sliding block 5b can slide along the radial direction of the male die 3, during the punching process, the blank holder part of the blank holder 4 is abutted against the top end of the raw material, the upper die fixing seat 1 continues to descend, so that the distance between the blank holder part of the blank holder 4 and the upper die fixing seat 1 is reduced, the deformed sliding block 5b is taken as a reference point, the deformed sliding block 5b vertically moves upwards, the second inclined plane abutting edge 5c1 is in sliding fit with the first inclined plane sliding edge 5b2, the first inclined plane sliding edge 5b2 inclines relatively to face the top end of the blank holder part of the blank holder 4, so that the first inclined plane sliding edge 5b2 horizontally moves along the axial direction of the male die 3 through the extrusion guiding function of the second inclined plane abutting edge 5c1, so that the vertical abutting 5b1 abuts against the circumferential, thereby through trilateral butt positioning action for screw thread post 3a fastening and be in the axis position completely, and when the press work end resets, the slider 5b that warp resets to stop the location butt, thereby be convenient for rotate the terrace die 3 that screw thread post 3a changed other shapes.
As shown in fig. 5 and 6, the ball guide 4b includes: the fixing columns 4b1 are vertically arranged at four corners of the edge pressing plate 4a and are in sliding connection with four corners of the upper die fixing seat 1, and the circumferential surfaces of the fixing columns 4b1 are axially and uniformly provided with placing grooves 4b2 with vertical axes; a fine spring 4b5 and a ball 4b6, the fine spring 4b5 and the ball 4b6 being coaxially disposed in the placement groove 4b2 in this order; the fixing sleeve 4b3 is coaxially sleeved on the fixing column 4b1, limiting holes 4b4 with the diameter smaller than that of the ball 4b6 are uniformly distributed on the circumferential surface of the fixing sleeve, and in a working state, one side of the ball 4b6 is positioned outside the limiting holes 4b4 under the elastic force action of the fine spring 4b 5; the limiting ring 4b8 is coaxially arranged at the penetrating position of the upper die fixing seat 1 and the placing groove 4b 2.
The four corners of the edge pressing plate 4a are in sliding fit with the upper die fixing seat 1 through the first avoidance holes 4a1, when the fixing column 4b1 is repeatedly punched and worn, the fine spring 4b5 and the ball 4b6 are coaxially arranged in the placement groove 4b2, and one side of the ball 4b6 is located outside the limiting hole 4b4 under the elastic force action of the fine spring 4b5, so that the sliding friction between the fixing sleeve 4b3 and the second guide sleeve 4b7 is changed into rolling friction, the friction force is greatly reduced, the service life of the fixing column 4b1 can be prolonged under the condition that the positioning guiding operation is not influenced, and the fixing sleeve 4b3 is used for preventing the fine spring 4b5 and the ball 4b6 from being separated from the placement groove 4b 2.
As shown in fig. 5 and 6, the ball-type guide post 4b further comprises a 4b9, and the 4b9 is coaxially arranged at the top end of the placing groove 4b 2.
When the working end of the press is reset, the ball type guide post 4b is restored under the elastic action of the side pressing spring 4c, and the 4b9 is coaxially arranged at the top end of the placing groove 4b2, so that the placing groove 4b2 cannot fall off from the upper die fixing seat 1, and the next stamping is facilitated.
As shown in fig. 7, 8 and 9, first beveled sliding edge 5b2 makes an angle of less than ninety degrees and greater than forty-five degrees with respect to the top of the binder portion of binder 4.
When the included angle between the first inclined sliding edge 5b2 and the top end of the edge pressing part of the edge pressing device 4 is less than ninety degrees and more than forty-five degrees, the inclined surface of the fixed abutting block 5c can guide the inclined surface of the deformation sliding block 5b to stably slide along the radial direction, and the inclined surfaces of the deformation sliding block 5b cannot be guided to slide along the radial direction by the angles of more than ninety degrees and less than forty-five ends.
As shown in fig. 8 and 9, the first inclined sliding edge 5b2 is further provided with a second dovetail wedge 5b5 in an inclined direction, the third dovetail groove 5c2 is provided with a third dovetail groove 5c2 in an inclined direction, and the second dovetail wedge 5b5 is engaged with the third dovetail groove 5c2 in a sliding fit.
When the second inclined plane abutting edge 5c1 extrudes the third dovetail groove 5c2 to slide along the radial direction, the structure is not stable enough only by inclined plane extrusion guiding, and the second dovetail wedge 5b5 and the third dovetail groove 5c2 are in tabling sliding fit by arranging the second dovetail wedge 5b5 and the third dovetail groove 5c2 on the inclined plane, so that the structure is more stable when the inclined plane is guided, and positioning and clamping are facilitated.
As shown in fig. 10, fixing pins 6a for fixedly connecting the female die 7 are uniformly distributed in the female die fixing seat 6 along the axial direction.
The female die 7 of different types can be freely replaced by the fixing pin 6a, and the female die 7 can be prevented from rotating in the punching process.
As shown in fig. 1, the guiding orientation device 8 includes: the long pins 8a and the long pins 8a are vertically arranged at four corners of the top end of the female die fixing seat 6, vertically penetrate four corners of the upper die fixing seat 1 and are in sliding fit with the female die fixing seat through the first guide sleeves 8 b.
Through setting up long pin 8a perpendicularly in 6 top four corners of die fixing base and vertically running through 1 four corners of mould fixing base and through first guide pin bushing 8b rather than sliding fit for go up mould fixing base 1 and can be when vertical removal, go up the vertical projection of mould fixing base 1 and coincide with die fixing base 6 all the time, thereby ensure terrace die 3 and the gomphosis of die 7.
A metal stamping die and a stamping process comprise the following steps: firstly, cleaning a prepared plate, cleaning a large plate, and cutting the large plate into small plates with proper sizes by using a plate shearing machine;
secondly, selecting a suitable male die 3 and a suitable female die 7 according to the shape of a required stamping finished product, and according to the installation operation requirement, coaxially screwing the male die 3 into the internal thread fixing sleeve 2 through a thread column 3a, wherein the female die 7 and the male die 3 are coaxially arranged at the top end of a female die fixing seat 6;
thirdly, placing a plate, and placing the plate on the top end of the female die 7;
fourthly, starting a press machine to enable the male die 3 to vertically move towards the female die 7;
and step five, closing the press, and taking out the stamped part punched by the press after the working end of the press is reset.
The working principle of the invention is as follows:
the die is suitable for punching round finished products; before the work begins, a stamping die is arranged on a press machine, a die shank 1a is coaxially and fixedly connected with the bottom end of the press machine, a male die 3 and a female die 7 which are suitable for use are selected according to the shape of a required stamping finished product, threaded columns 3a are axially arranged at the top ends of all the male dies 3, the male dies 3 are coaxially screwed into an internal threaded fixing sleeve 2 through the threaded columns 3a according to the installation operation requirement, and the female die 7 and the male dies 3 are coaxially arranged at the top end of a female die fixing seat 6;
starting to work, placing the raw material on the female die 7, starting the press machine, so that the working end of the press machine vertically descends to drive the upper die fixing seat 1 to vertically descend, and the horizontal plane of the edge pressing part of the edge pressing device 4 is lower than the bottom end of the male die 3 and is elastically arranged at the bottom end of the upper die fixing seat 1, so that when the upper die fixing seat 1 descends to a certain height, the edge pressing part of the edge pressing device 4 is firstly abutted to the periphery of the top end of the raw material, and therefore the raw material cannot move during stamping;
the upper die fixing seat 1 continuously descends under the action of the elasticity of the beader 4, so that the beader 4 is relatively close to the upper die fixing seat 1, the beader 4 is relatively vertically ascended to drive the starting part of the triangular positioning clamp holder 5 to ascend, the starting part drives the abutting part to slide on the pressure yielding port 2a along the radial direction of the internal thread fixing sleeve 2 to abut against the outer circumferential surface of the threaded column 3a, the circumferential surface of the threaded column 3a is positioned and clamped along the radial direction of the triangle, the male die 3 is completely and tightly connected with the upper die fixing seat 1, and the threaded column 3a is prevented from being broken or deviating from the axis due to overlarge stamping force; the male die 3 is pressed down to punch the raw material into a specified shape on the female die 7;
after the punching press was accomplished, the reset of press work end, terrace die 3 break away from die 7, after a section distance that rises of upper die fixing base 1, 4 crimping portions of beader break away from the finished product top again, again with the finished product take out from die 7 can, 6 four corners of die fixing base pass through the vertical sliding connection of guide locator 8 in last die fixing base 1 bottom for go up die fixing base 1 when vertical decline, make terrace die 3 and die 7 remain coaxial throughout through the four corners positioning action, thereby be convenient for continuous punching press.
Claims (10)
1. A metal stamping die is characterized by comprising:
the die comprises an upper die fixing seat (1), wherein a die shank (1a) for fixedly connecting the working end of the press is arranged in the center of the top end of the upper die fixing seat (1) along the vertical direction;
the die comprises an internal thread fixing sleeve (2), wherein the internal thread fixing sleeve (2) and a die handle (1a) are coaxially arranged at the bottom end of an upper die fixing seat (1), and three pressure relief ports (2a) are uniformly distributed in the internal thread fixing sleeve (2) along the axial direction;
the top end of the male die (3) is coaxially provided with a threaded column (3a), and the male die (3) is coaxially screwed in the internal threaded fixing sleeve (2) through the threaded column (3 a);
the horizontal plane of the working end of the edge presser (4) is lower than the bottom end of the male die (3) and is elastically arranged at the bottom end of the upper die fixing seat (1);
the triangular positioning clamp holder (5), the butt working part of the triangular positioning clamp holder (5) is arranged on the yielding port (2a) along the radial sliding of the internal thread fixing sleeve (2), the start working part of the triangular positioning clamp holder (5) is uniformly distributed at the top end of the blank pressing part of the blank pressing device (4) along the axial direction of the internal thread fixing sleeve (2), the butt working part is connected with the start working part in a sliding manner, and in a stamping state, the blank pressing part of the blank pressing device (4) vertically rises to drive the start part of the triangular positioning clamp holder (5) to rise, so that the start part drives the butt part to slide and butt on the outer circumferential surface of the threaded column (3a) along the radial direction of the internal thread fixing sleeve (2) on the yielding port (2 a);
the four corners of the female die fixing seat (6) are vertically and slidably connected to the bottom of the upper die fixing seat (1) through guide locators (8);
the female die fixing seat (6) and the male die (3) are coaxially arranged at the top end of the female die fixing seat (6).
2. A metal stamping die according to claim 1, wherein the edger (4) comprises: the vertical projection of the edge pressing plate (4a) and the internal thread fixing sleeve (2) is superposed, four corners of the edge pressing plate (4a) are connected with four corners of the upper die fixing seat (1) in a sliding mode through ball type guide columns (4b), and a first avoidance hole (4a1) in sliding fit with the male die (3) is formed in the center of the edge pressing plate (4a) in the axial direction; the side pressing spring (4c) is coaxially sleeved on the ball type guide post (4b) and two ends of the side pressing spring (4c) are respectively abutted to the bottom end of the upper die fixing seat (1) and the top end of the side pressing plate (4 a).
3. The metal stamping die according to claim 1, wherein the bottom end of the pressure relief opening (2a) is provided with a third dovetail wedge (2a1) along the radial direction; the triangular positioning clamp holder (5) comprises: the fixing ring (5a) is fixedly arranged on the internal thread fixing sleeve (2), and a first dovetail groove (5a1) is radially arranged at the bottom end of the fixing ring (5 a); the deformation sliding block (5b) is provided with a vertical abutting edge (5b1) facing one side of the axis of the internal thread fixing sleeve (2), the opposite side of the deformation sliding block (5b) is provided with a first inclined sliding edge (5b2) which is inclined towards the top end of the edge pressing part of the edge pressing device (4) and is arranged at the edge pressing part of the edge pressing device (4), and the upper end and the lower end of the deformation sliding block (5b) are respectively provided with a second dovetail groove (5b4) which is in sliding connection with the first dovetail groove (5a1) and the third dovetail wedge (2a 1); fixed butt piece (5c), fixed butt piece (5c) radially set up on blank holder portion top in blank holder (4) along the fixed cover of internal thread (2), and fixed butt piece (5c) is provided with second inclined plane butt limit (5c1) towards the fixed cover of internal thread (2) axis side, second inclined plane butt limit (5c1) and first inclined plane slip limit (5b2) sliding fit.
4. A metal stamping die according to claim 2, characterized in that the ball guide (4b) comprises: the fixing columns (4b1), the fixing columns (4b1) are vertically arranged at four corners of the edge pressing plate (4a) and are in sliding connection with four corners of the upper die fixing seat (1), and placing grooves (4b2) with vertical axes are uniformly distributed on the circumferential surface of each fixing column (4b1) along the axial direction; a fine spring (4b5) and a ball (4b6), the fine spring (4b5) and the ball (4b6) are coaxially arranged in the placing groove (4b2) in sequence; the fixing sleeve (4b3) is coaxially sleeved on the fixing column (4b1), limiting holes (4b4) with the diameter smaller than that of the balls (4b6) are uniformly distributed on the circumferential surface of the fixing sleeve, and one side of each ball (4b6) is positioned outside each limiting hole (4b4) under the elastic force action of the micro spring (4b5) in a working state; and the limiting ring (4b8) is coaxially arranged at the penetrating position of the upper die fixing seat (1) and the placing groove (4b 2).
5. A metal stamping die according to claim 2, wherein the ball-type guide post (4b) further comprises 4b9, said 4b9 being coaxially disposed at the top end of the placement groove (4b 2).
6. A metal stamping die according to claim 3, wherein the first beveled sliding edge (5b2) is angled less than ninety degrees and greater than forty-five degrees from the top of the binder portion of the binder (4).
7. A metal stamping die according to claim 3, wherein the first inclined sliding edge (5b2) is further provided with a second dovetail wedge (5b5) in an oblique direction, the third dovetail groove (5c2) is provided with a third dovetail groove (5c2) in an oblique direction, and the second dovetail wedge (5b5) is engaged with the third dovetail groove (5c2) in a sliding fit.
8. A metal stamping die according to claim 1, characterized in that fixing pins (6a) for fixedly connecting the die (7) are uniformly distributed in the die holder (6) along the axial direction.
9. A metal stamping die according to claim 1, wherein the guiding locator (8) comprises: the long pins (8a) are vertically arranged at the four corners of the top end of the female die fixing seat (6) and vertically penetrate through the four corners of the upper die fixing seat (1) and are in sliding fit with the female die fixing seat through the first guide sleeves (8 b).
10. The metal stamping die and the stamping process according to any one of claims 1 to 9, comprising the steps of: firstly, cleaning a prepared plate, cleaning a large plate, and cutting the large plate into small plates with proper sizes by using a plate shearing machine;
secondly, selecting a suitable male die (3) and a suitable female die (7) according to the shape of a required stamping finished product, coaxially screwing the male die (3) into the internal thread fixing sleeve (2) through a thread column (3a) according to the installation operation requirement, and coaxially arranging the female die (7) and the male die (3) at the top end of a female die fixing seat (6);
thirdly, placing a plate, and placing the plate on the top end of the female die (7);
fourthly, starting a press machine to enable the male die (3) to vertically move towards the female die (7);
and step five, closing the press, and taking out the stamped part punched by the press after the working end of the press is reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010410339.4A CN111687309A (en) | 2020-05-15 | 2020-05-15 | Metal stamping die and stamping process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010410339.4A CN111687309A (en) | 2020-05-15 | 2020-05-15 | Metal stamping die and stamping process |
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| CN111687309A true CN111687309A (en) | 2020-09-22 |
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| CN202010410339.4A Withdrawn CN111687309A (en) | 2020-05-15 | 2020-05-15 | Metal stamping die and stamping process |
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| CN208991606U (en) * | 2018-10-29 | 2019-06-18 | 重庆数码模车身模具有限公司 | A kind of stamping die with movable centering block positioning mechanism |
| CN110421883A (en) * | 2019-07-09 | 2019-11-08 | 江苏中海华核环保有限公司 | A kind of compacting machine for nuclear power station Radwastes treatment |
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|---|---|---|---|---|
| GB1365615A (en) * | 1971-09-29 | 1974-09-04 | Whitney Corp W | Assembly comprising a vertically reciprocable ram and a punch holder |
| SU580033A1 (en) * | 1975-06-13 | 1977-11-15 | Ленинградский Институт Точной Механики И Оптики | Die set for making flanged components |
| SU640785A1 (en) * | 1976-12-13 | 1979-01-05 | Предприятие П/Я В-2239 | Drawing die set |
| DE3620193A1 (en) * | 1986-06-16 | 1987-12-17 | Weinsberg Karosseriewerke | Pressing and/or cutting tool clamping device for presses |
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Application publication date: 20200922 |