CN210632772U - Forming die for stamping and bending workpiece - Google Patents

Abstract

The utility model discloses a forming die for stamping and bending a workpiece, which comprises a bending block and an installation piece, wherein the bending block is installed on the outer wall of the bottom of the installation piece, the bending block and the installation piece are fixedly connected in a welding mode, the upper end of the installation piece is connected with a stamping plate, two spring limiting devices are respectively added on the outer walls of the upper ends of the front side and the rear side of the stamping plate, the two spring limiting devices are respectively arranged on the outer walls of the upper ends of the front side and the rear side of the stamping plate, the novel spring limiting devices can limit the compression stroke of a pressurizing buffer spring connected between the stamping plate and the opposite inner wall of an upper die base, and the pressure and the buffer force of the pressurizing buffer spring can be effectively controlled when the upper die base presses down after the compression stroke of the pressurizing buffer spring is limited, so that the pressure and the buffer force of the pressurizing buffer spring can be changed according to the hardness and the thickness of the material of the workpiece, the bending angle of the workpiece is more precise and accurate.

Description

Forming die for stamping and bending workpiece

Technical Field

The utility model belongs to the technical field of the mould is relevant, concretely relates to forming die who bends to work piece punching press.

Background

The bending machine mould is a tool for forming and processing plate material by bending machine, the tool is composed of various parts, different moulds are composed of different parts, it mainly utilizes the change of physical state of formed material to implement processing of article appearance, and can be used for making blank material into the tool with specific form and size under the action of bending machine pressure, the bending machine mould is divided into upper mould and lower mould of bending machine, and the mould for plate material stamping forming and separation is a mould with cavity, the mould for separation has cutting edge, and the stamping mould is a special technological equipment for processing material (metal or non-metal) into part (or semi-finished product) in cold stamping process, and is called cold stamping mould (commonly called cold stamping mould), and stamping, and is characterized by that at room temp. it utilizes the mould mounted on the pressing machine to apply pressure to the material to make it produce separation or plastic deformation, thereby obtaining a press working method of a desired part.

The existing forming die technology for stamping and bending a workpiece has the following problems: the existing forming die for bending workpieces through stamping is characterized in that when the workpieces are bent through stamping plate downward stamping, the upper die base is driven to move up and down through external power equipment, the upper die base can drive the stamping plate to move up and down through connection of a plurality of pressurizing buffer springs for bending, and the pressurizing buffer springs only provide pressurizing and buffering effects for the stamping plate in the process, and the pressurizing buffer springs are unchangeable in pressure and buffering force applied to the stamping plate, so that when the workpieces to be bent are made of different materials, the pressurizing buffer springs are unchangeable in pressure and buffering force applied to the stamping plate, and the workpieces to be bent are easily damaged and excessively deformed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a forming die who bends to work piece punching press to the pressure boost buffer spring who connects upper die base and punching press board that proposes in solving above-mentioned background art only provides pressurization and cushioning effect to the punching press board, and pressure boost buffer spring is unchangeable to the applied pressure size and the buffer force size of punching press board, so cause the work piece of being bent to produce the problem of damage and excessive deformation easily.

In order to achieve the above object, the utility model provides a following technical scheme: a forming die for stamping and bending a workpiece comprises a bending block and an installation piece, wherein the bending block is installed on the outer wall of the bottom of the installation piece, the bending block and the installation piece are fixedly connected in a welding mode, the upper end of the installation piece is connected with a stamping plate, a lower die seat is arranged on the parallel lower side of the stamping plate, an upper die seat is arranged on the parallel upper side of the stamping plate, the stamping plate and the upper die seat are fixedly connected through a pressurizing buffer spring, spring limiting devices are arranged on the outer walls of the upper ends of the front side and the rear side of the stamping plate, a connecting plate is connected to the outer wall of the center of the upper end of the upper die seat, the connecting plate and the upper die seat are fixedly connected through a nut, a vertical die shank is connected to the outer wall of the upper end of the connecting plate, the die shank and the connecting plate are fixedly connected in a welding mode, a dismounting screw hole is arranged on, the utility model discloses a punching press plate, including the dismouting screw, the top of dismouting screw is provided with the dismouting screw, the internal connection of dismouting screw has vertical restriction seat, the upper end setting of restriction seat is outside at the upper end outer wall of punching press board, be provided with the dismouting screw on the lower half section outer wall of restriction seat, restriction seat and dismouting screw pass through dismouting screw fixed connection, the inside ascending degree of depth adjustment screw that is provided with of center department of restriction seat, vertical degree of depth adjusting screw has been cup jointed to the inside of degree of depth adjustment screw, the upper end setting of degree of depth adjusting screw is outside at the upper end of restriction seat, the top of degree of depth adjusting screw is connected with the restriction piece, restriction piece and degree of depth adjusting screw.

Preferably, the vertical inside in both ends all is provided with the movable hole about punching press board horizontal center department is close to, the horizontal center department of upper die base all is provided with the suppression pipe, two on being close to about both ends bottom outer wall the suppression pipe passes through welded mode fixed connection with the upper die base, two the suppression pipe passes two movable holes respectively and sets up in the lower extreme outside of punching press board, two all cup jointed the retaining ring on the suppression pipe lower extreme outer wall, two the inside suppression guide arm, two of all cup jointing of suppression pipe the lower extreme that suppresses the guide arm all is through welding and die holder fixed connection.

Preferably, the outer wall of the upper end of the lower die holder is provided with a forming block, the forming block is arranged on the parallel lower side of the mounting piece, a bending groove with an upward opening is formed in the forming block, the bending groove is arranged on the lower side of the bending block, the bottom of the lower die holder is provided with the mounting seat, and the mounting seat is fixedly connected with the lower die holder in a welding mode.

Preferably, the pressurizing buffer springs are provided with twelve, twelve in number, the length and the elastic coefficient of the pressurizing buffer springs are the same, twelve in number, the pressurizing buffer springs are divided into four groups, and the three equal distances are connected between the punching plate and the upper die base, and twelve in number, the upper ends and the lower ends of the pressurizing buffer springs are fixedly connected with the upper die base and the punching plate respectively through welding.

Preferably, the cross-sectional shapes and the area sizes of the upper die holder, the stamping plate and the lower die holder are the same, the upper die holder, the stamping plate and the lower die holder are parallel to each other, and the outer walls of the upper die holder, the stamping plate and the lower die holder are vertically parallel and level.

Preferably, the longitudinal length and the transverse width of the mounting piece are equal to those of the forming block, the outer wall of the bottom of the mounting piece can be completely attached to the outer wall of the upper end of the forming block, and the bending groove can be completely sleeved outside the bending block.

Compared with the prior art, the utility model provides a forming die who bends to work piece punching press possesses following beneficial effect:

1. the utility model discloses a divide equally to have increased two spring limiting device respectively on the punching press board is close to the front and back both sides upper end outer wall, and this novel spring limiting device can limit the compression stroke of the pressure boost buffer spring of connection between punching press board and upper die base subtend inner wall, and can be effectual when controlling the upper die base and pushing down after limiting the compression stroke of pressure boost buffer spring exert pressure size and buffer force size to the buffer plate, thereby can change the pressure size and the buffer force size that the pressure boost buffer spring exerts to the buffer plate according to the adjusting spring limiting device that the material hardness and thickness of bending the work piece come the correspondence, make the angle that the work piece was bent more accurate, also can increase bending efficiency simultaneously;

2. the specific use mode and principle of the novel spring limiting device are as follows, when the spring limiting device is adjusted and used, the increase of the total length of the spring limiting device can reduce the pressure and the buffer force exerted by the pressurizing buffer spring on the downward-pressed stamping plate, and the decrease of the total length of the spring limiting device can increase the pressure and the buffer force exerted by the pressurizing buffer spring on the downward-pressed stamping plate, when the spring limiting device is needed to be used, firstly, the tail end of the limiting seat with the depth adjusting screw rod is required to be inserted into the dismounting screw hole in the upper end of the stamping plate, the tail end of the limiting seat is firmly fixed in the dismounting screw hole through the dismounting screw thread on the outer wall of the lower half section of the limiting seat, then, the total length of the spring limiting device is required to be adjusted to change the pressure and the buffer force exerted by the pressurizing buffer spring on the downward-pressed stamping plate, at the moment, only the limiting sheet at the uppermost end of the depth adjusting screw rod, the degree of depth adjusting screw who is clockwise anticlockwise rotatory this moment then can pass through the screw action with the inside degree of depth adjusting screw of restriction seat and move about the depth adjusting screw is inside, will increase whole spring limiting device's restriction length like this, thereby make the upper die base drive the compression stroke of pressure boost buffer spring when the punching press board pushes down through pressure boost buffer spring and be restricted by spring limiting device, because upper die base bottom can be given to support by the restriction piece after pressure boost buffer spring compression to a certain degree, thereby prevent pressure boost buffer spring to continue the compression and exert pressure to the punching press board, thereby can change the punching press power degree to the punching press board, make the angle that the work piece was bent more accurate.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a schematic view of a three-dimensional structure of a forming die for stamping and bending a workpiece according to the present invention;

fig. 2 is a schematic view of a vertical plane structure of a forming die for stamping and bending a workpiece according to the present invention;

fig. 3 is a schematic view of a vertical cross-sectional structure of the spring limiting device according to the present invention;

in the figure: 1. bending the block; 2. mounting a sheet; 3. a spring restraint device; 4. a pressurizing buffer spring; 5. an upper die holder; 6. a connecting plate; 7. a die shank; 8. a movable hole; 9. stamping the plate; 10. a suppression catheter; 11. a retainer ring; 12. a restraint guide rod; 13. a mounting seat; 14. a lower die holder; 15. forming a block; 16. bending the groove; 17. disassembling and assembling the screw hole; 18. a restriction seat; 19. disassembling and assembling threads; 20. a depth adjustment screw hole; 21. a depth adjusting screw; 22. a limiting sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a forming die for stamping and bending a workpiece comprises a bending block 1 and an installation piece 2, wherein the bending block 1 is installed on the outer wall of the bottom of the installation piece 2, the bending block 1 and the installation piece 2 are fixedly connected in a welding mode, the upper end of the installation piece 2 is connected with a stamping plate 9, a lower die seat 14 is arranged on the parallel lower side of the stamping plate 9, an upper die seat 5 is arranged on the parallel upper side of the stamping plate 9, the cross-sectional shapes and the area sizes of the upper die seat 5, the stamping plate 9 and the lower die seat 14 are the same, the upper die seat 5, the stamping plate 9 and the lower die seat 14 are parallel to each other, the outer walls of the upper die seat 5, the stamping plate 9 and the lower die seat 14 are vertically aligned, so that the whole working state of the whole forming die can be more stable when the forming die is used and works, the phenomenon that the bending effect on the workpiece is influenced due to uneven distribution of stamping force between the stamping plate 9, the stamping plate 9 and the upper die base 5 are fixedly connected through a pressurizing buffer spring 4, twelve pressurizing buffer springs 4 are arranged, the length and the elastic coefficient of twelve pressurizing buffer springs 4 are the same, the twelve pressurizing buffer springs 4 are divided into four groups, three of the four groups are connected between the stamping plate 9 and the upper die base 5 at equal intervals, the upper end and the lower end of each of the twelve pressurizing buffer springs 4 are respectively and fixedly connected with the upper die base 5 and the stamping plate 9 through welding, spring limiting devices 3 are respectively arranged on the outer walls of the upper ends of the front side and the rear side of the stamping plate 9, a connecting plate 6 is connected on the outer wall of the center of the upper end of the upper die base 5, the connecting plate 6 is fixedly connected with the upper die base 5 through nuts, a vertical die handle 7 is connected on the outer wall of the upper end of the connecting plate 6, the die handle 7 is fixedly connected with the connecting plate 6 through a, the outer walls of the bottoms of the left end and the right end of the transverse center of the upper die base 5 are respectively provided with a restraining conduit 10, the two restraining conduits 10 are fixedly connected with the upper die base 5 in a welding mode, the two restraining conduits 10 respectively penetrate through the two movable holes 8 and are arranged outside the lower end of the stamping plate 9, the outer walls of the lowest ends of the two restraining conduits 10 are respectively sleeved with a retaining ring 11, restraining guide rods 12 are respectively sleeved inside the two restraining conduits 10, the lowest ends of the two restraining guide rods 12 are respectively fixedly connected with the lower die base 14 in a welding mode, the outer wall of the upper end of the lower die base 14 is provided with a forming block 15, the longitudinal length and the transverse width of the mounting piece 2 are respectively equal to those of the forming block 15, the outer wall of the bottom of the mounting piece 2 can be completely attached to the outer wall of the upper end of the forming block 15, the bending groove 16 can be completely sleeved, the bending block 1 can rapidly and firmly punch a workpiece into the bending groove 16, two ends of the workpiece are extruded and fixed between the mounting piece 2 and the forming block 15, so that the workpiece can be accurately bent to a specified bending angle, and the bending yield is increased, the forming block 15 is arranged at the lower parallel side of the mounting piece 2, the bending groove 16 with an upward opening is arranged inside the forming block 15, the bending groove 16 is arranged at the right lower side of the bending block 1, the bottom of the lower die base 14 is provided with the mounting base 13, the mounting base 13 and the lower die base 14 are fixedly connected in a welding manner, so that when an external punching power device drives the upper die base 5 to press down, the upper die base 5 which presses down drives the punching plate 9 to press down through the connection of the pressurizing buffer spring 4, and the bending block 1 at the bottom of the punching plate 9 is punched on the workpiece, so that the workpiece is punched into the inside of the bending groove 16 and bent.

A forming die for stamping and bending a workpiece is characterized in that a spring limiting device 3 is provided with a dismounting screw hole 17, the dismounting screw hole 17 is arranged inside the outer wall of the upper end of a stamping plate 9, the opening of the dismounting screw hole 17 is upward, a vertical limiting seat 18 is connected inside the dismounting screw hole 17, the upper end of the limiting seat 18 is arranged outside the outer wall of the upper end of the stamping plate 9, dismounting screw threads 19 are arranged on the outer wall of the lower half section of the limiting seat 18, the limiting seat 18 and the dismounting screw hole 17 are fixedly connected through the dismounting screw threads 19, a depth adjusting screw hole 20 with an upward opening is arranged inside the center of the limiting seat 18, a vertical depth adjusting screw rod 21 is sleeved inside the depth adjusting screw hole 20, the upper end of the depth adjusting screw rod 21 is arranged outside the upper end of the limiting seat 18, the uppermost end of the depth adjusting screw rod 21 is connected with a limiting piece 22, the limiting piece 22 and the depth adjusting, firstly, the tail end of a limiting seat 18 with a depth adjusting screw 21 is required to be inserted into a dismounting screw hole 17 in the upper end of a stamping plate 9, the tail end of the limiting seat 18 is firmly fixed in the dismounting screw hole 17 through a dismounting screw 19 on the outer wall of the lower half section of the limiting seat 18, then the total length of a spring limiting device 3 is required to be adjusted to change the pressure and the buffering force exerted by a pressurizing buffer spring 4 on the downward-pressed stamping plate 9, at the moment, a limiting sheet 22 at the uppermost end of the depth adjusting screw 21 is only required to be grasped by a hand to drive the depth adjusting screw 21 to rotate clockwise and anticlockwise, at the moment, the depth adjusting screw 21 rotating clockwise and anticlockwise can move up and down in the depth adjusting screw hole 20 through the screw thread action with the depth adjusting screw hole 20 in the limiting seat 18, so that the limiting length of the whole spring limiting device 3 is increased, and the compression stroke of the pressurizing buffer spring 4 is limited by the spring when an upper die holder 5 drives the stamping Device 3 restricts because upper die base 5 bottom can be given by restriction piece 22 and support after pressure boost buffer spring 4 compresses to a certain degree to prevent pressure boost buffer spring 4 to continue to compress and exert pressure to stamping plate 9, thereby can change the punching press power degree to stamping plate 9, make the angle that the work piece was bent more accurate.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the forming die for stamping and bending the workpiece is assembled and used, firstly, the lower die holder 14 is required to be installed on a corresponding position on the forming die through the installation seat 13 at the bottom of the lower die holder and fixed firmly, then the upper die holder 5 at the parallel upper side of the lower die holder 14 is required to be connected with the stamping power equipment on the forming die through the die shank 7, so that the external stamping power equipment can drive the upper die holder 5 and the stamping plate 9 connected with the bottom of the upper die holder 5 to move up and down through the connection of the die shank 7, then the bending block 1 is required to be installed at the bottom of the stamping plate 9 through the installation piece 2, the forming block 15 with the bending groove 16 is required to be installed on the outer wall at the upper end of the lower die holder 14, and the bending block 1 can be completely inserted into the bending groove 16 after the two are respectively installed, then the workpiece for stamping and bending is required to be placed on the forming, then, an external stamping power device is controlled to drive an upper die base 5 to press down, the upper die base 5 which presses down drives a stamping plate 9 to press down through the connection of a pressurizing buffer spring 4, so that a bending block 1 at the bottom of the stamping plate 9 is stamped on a workpiece, the workpiece is stamped into a bending groove 16 and is bent, and the purpose of stamping and bending the workpiece is achieved, two spring limiting devices 3 are respectively added on the outer walls of the upper ends of the front side and the rear side of the stamping plate 9, the novel spring limiting devices 3 can limit the compression stroke of the pressurizing buffer spring 4 connected between the stamping plate 9 and the opposite inner walls of the upper die base 5, and the pressure and the buffer force of the pressurizing buffer spring 4 on the stamping plate 9 can be effectively controlled when the upper die base 5 presses down after the compression stroke of the pressurizing buffer spring 4 is limited, therefore, the applied pressure and the buffer force of the pressurizing buffer spring 4 on the buffer pressure plate 9 can be changed by the corresponding adjusting spring limiting device 3 according to the hardness and the thickness of the material of the bent workpiece, so that the bent angle of the workpiece is more precise and accurate.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a forming die who bends to work piece punching press, is including bending piece (1) and installation piece (2), its characterized in that: the bending die is characterized in that the bending block (1) is installed on the outer wall of the bottom of the installation piece (2), the bending block (1) and the installation piece (2) are fixedly connected in a welding mode, the upper end of the installation piece (2) is connected with a stamping plate (9), a lower die holder (14) is arranged on the lower parallel side of the stamping plate (9), an upper die holder (5) is arranged on the upper parallel side of the stamping plate (9), the stamping plate (9) and the upper die holder (5) are fixedly connected through a pressurizing buffer spring (4), spring limiting devices (3) are arranged on the outer walls of the upper ends of the front side and the rear side of the stamping plate (9), a connecting plate (6) is connected to the outer wall of the center of the upper end of the upper die holder (5), the connecting plate (6) and the upper die holder (5) are fixedly connected through a nut, and a vertical die handle (, the die handle (7) is fixedly connected with the connecting plate (6) in a welding mode, a dismounting screw hole (17) is formed in the spring limiting device (3), the dismounting screw hole (17) is formed in the inner portion of the outer wall of the upper end of the stamping plate (9) and is upward in opening, a vertical limiting seat (18) is connected to the inner portion of the dismounting screw hole (17), the upper end of the limiting seat (18) is arranged outside the outer wall of the upper end of the stamping plate (9), dismounting threads (19) are arranged on the outer wall of the lower half section of the limiting seat (18), the limiting seat (18) and the dismounting screw hole (17) are fixedly connected through the dismounting threads (19), a depth adjusting screw hole (20) with an upward opening is formed in the center of the limiting seat (18), a vertical depth adjusting screw rod (21) is sleeved in the depth adjusting screw hole (20), and the upper end of the depth adjusting screw rod (21) is arranged outside the upper end of the limiting seat (18, the uppermost end of the depth adjusting screw rod (21) is connected with a limiting piece (22), and the limiting piece (22) is fixedly connected with the depth adjusting screw rod (21) in a welding mode.

2. The forming die for stamping and bending a workpiece according to claim 1, wherein: punching press board (9) horizontal center department is close to about both ends vertical inside all is provided with movable hole (8), all be provided with on the outer wall of both ends bottom about being close to in upper die base (5) horizontal center department and restrain pipe (10), two restrain pipe (10) and upper die base (5) through welded mode fixed connection, two restrain pipe (10) and pass two movable hole (8) respectively and set up in the lower extreme outside of punching press board (9), two restrain and all cup jointed retaining ring (11), two on pipe (10) lower extreme outer wall restrain inside and all cup jointed restraint guide arm (12), two restrain the lower extreme of guide arm (12) all through welding and die holder (14) fixed connection.

3. The forming die for stamping and bending a workpiece according to claim 1, wherein: be provided with on die holder (14) upper end outer wall and become shape piece (15), become shape piece (15) and set up the parallel downside at installation piece (2), become shape piece (15) inside and be provided with bending groove (16) that open side is up, bending groove (16) set up under bending piece (1), the bottom of die holder (14) is provided with mount pad (13), mount pad (13) and die holder (14) are through welded mode fixed connection.

4. The forming die for stamping and bending a workpiece according to claim 1, wherein: pressure boost buffer spring (4) are provided with twelve altogether the length and the elasticity coefficient of pressure boost buffer spring (4) are all the same, twelve each three equidistance of pressure boost buffer spring (4) four groups is connected between punching press board (9) and upper die base (5), twelve the upper and lower both ends of pressure boost buffer spring (4) all through the welding respectively with upper die base (5) and punching press board (9) fixed connection.

5. The forming die for stamping and bending a workpiece according to claim 1, wherein: the cross-sectional shapes and the area sizes of the upper die holder (5), the stamping plate (9) and the lower die holder (14) are the same, the upper die holder (5), the stamping plate (9) and the lower die holder (14) are parallel to each other, and the outer walls of the upper die holder (5), the stamping plate (9) and the lower die holder (14) are vertical and parallel.

6. The forming die for stamping and bending a workpiece according to claim 3, wherein: the vertical length and the horizontal width of installation piece (2) all equal with the vertical length and the horizontal width of shaping piece (15), installation piece (2) bottom outer wall can be complete with shaping piece (15) upper end outer wall laminating together, what the groove of bending (16) can be complete cup joints in the outside of bending piece (1).

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