Mechanical equipment for continuously stamping handle seat frame of door handle

Abstract

The utility model relates to the technical field of mechanical equipment for producing metal pieces, in particular to mechanical equipment for continuously punching a handle seat frame of a door handle, which comprises a lower die part and an upper die part, the lower die part and the upper die part are used for continuously punching a material belt to form the handle seat frame, and the discharging end of the lower die part is used for discharging; the stamping area is sequentially provided with a front-section edge cutting area, a first stretching area, a second stretching area, a clamping groove stamping area, a rear-section punching area and a rotary cutting blanking area in the advancing direction of an original material belt, and the original material belt sequentially penetrates through the areas, so that the original material belt is sequentially stamped and formed into process blanks, and finally the original material belt is continuously stamped and formed into a finished product seat frame. In conclusion, optimization and improvement can be carried out under the existing stretching process condition, the material plasticity of an original material belt is improved, the product forming state is improved by improving the stretching stress condition of the material, the design requirement purpose is achieved, and the production quality of the finished seat frame is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment for producing metal parts, in particular to a mechanical equipment for continuously stamping a door handle grip seat frame. Background Art

[0002] Stamping dies can be classified into three categories according to their structures: single-operation dies, compound dies, and progressive dies. The first two types require more labor and do not conform to economic benefits. Progressive dies can produce large quantities with high efficiency. When designing a progressive die, attention should be paid to the spacing between each module, the machining accuracy of parts, the assembly accuracy, the fitting accuracy, and the interference problem to achieve the purpose of mass production automation of progressive dies.

[0003] A progressive die (also known as a follow die or jump die) refers to a stamping die that can complete multiple processes simultaneously at several different positions in one stroke of a press. The blank is gradually formed in a progressive die. Continuous forming is a process method that concentrates processes, enabling multiple processes such as trimming, notching, grooving, punching, plastic deformation, and blanking to be completed on a single die. According to the actual needs of the stamping parts, multiple stamping processes (called stations in a progressive die) are arranged in a certain order for continuous stamping. It can not only complete blanking processes but also forming processes and even assembly processes. Many complex stamping parts that require multiple processes can be fully formed on a single die, which provides favorable conditions for high-speed automatic stamping. Thus, a progressive die is a blanking die with multiple stations and high efficiency.

[0004] When the existing continuous die production for the stretching forming process on the market is carried out, it is easy to cause the surface of the stamping product to be uneven and not smooth, and it requires grinding and polishing, which increases the production cost and reduces the production efficiency. Therefore, there is a particular need to develop a mechanical equipment for continuously stamping a door handle grip seat frame to improve the production efficiency of the door handle grip seat frame product and reduce the production cost. Summary of the Utility Model

[0005] The utility model aims to provide a technical solution to overcome the above deficiencies.

[0006] The utility model provides a mechanical equipment for continuously stamping a door handle grip seat frame, which includes a lower die part set as a fixed die and an upper die part set as a moving die. A stamping area is formed between the lower die part and the upper die part. Along the advancing direction of the original strip, a front cutting edge area, a first stretching area, a second stretching area, a card slot stamping area, a rear punching area, and a rotary cutting and blanking area are successively arranged in the stamping area. The original strip passes through the above areas in sequence, and thus is successively stamped into a process blank, and finally is continuously stamped into a finished seat frame.

[0007] As a further solution of the utility model: the upper die part of the front cutting edge area is provided with a center punching knife, an edge punching knife, a partition punching knife, a first cutting edge knife and a second cutting edge knife, and the lower die part of the front cutting edge area is provided with corresponding center positioning knife seats, edge positioning knife seats, partition knife seats, a first blanking knife seat and a second blanking knife seat, so as to cooperate with each other to punch and form the center positioning hole, edge positioning hole, strip extension edge and blank connecting strip of the process blank.

[0008] As a further solution of the utility model: the upper die part is further provided with a plurality of edge positioning pins, and the edge positioning pins are fixedly connected to the position of the upper die part corresponding to the edge positioning holes of the process blank, so that the edge positioning pins can penetrate into the edge positioning holes during the stamping process, and further perform positioning operations on the process blank.

[0009] As a further solution of the utility model: the upper die part of the first stretching area is provided with a first inner top and a first cavity sleeved on the first inner top, and the lower die part of the first stretching area is provided with a first punch. The first punch, the first inner top and the first cavity cooperate with each other to perform the first stretching stamping on the strip, so that the strip is formed into a process blank in the shape of a square cylinder.

[0010] As a further solution of the utility model: the upper die part of the second stretching area is provided with a second inner top and a second cavity sleeved on the second inner top, and the lower die part of the second stretching area is provided with a second punch. The second punch, the second inner top and the second cavity cooperate with each other to perform the second stretching stamping on the strip, so that the strip is formed into a process blank in the shape of a square cylinder.

[0011] As a further solution of the utility model: the upper die part of the card slot stamping area is provided with two groups of wedge-shaped component symmetrically arranged; the lower die part of the card slot stamping area is provided with two groups of card slot sliders, which are respectively arranged at both ends in the long side direction of the process blank and can penetrate into the cylindrical space of the process blank and abut against the inner side wall of the short side direction of the process blank. The side walls of the two groups of card slot sliders facing the short side direction of the process blank are respectively provided with card slot convex blocks, and the card slot convex blocks are fixedly connected to the card slot sliders; the two groups of card slot sliders are provided with passive inclined surfaces corresponding to the positions of the active inclined surfaces on both sides of the wedge-shaped component.

[0012] As a further solution of the utility model: the lower die part of the card slot stamping area is further provided with two groups of side wall sliders, which are respectively arranged at both ends in the long side direction of the process blank and can slide and abut against the outer side wall of the short side direction of the process blank. The upper die part of the card slot stamping area is further provided with two groups of side wall pressing blocks corresponding to the side wall sliders.

[0013] As a further solution of the utility model: a third punch is provided on the lower die part of the rear punching area, and a third inner top and a rear punching knife are provided on the upper die part of the rear punching area. The third punch, the third inner top and the rear punching knife cooperate with each other to perform a rear punching operation on the process blank, so as to punch out the handle mounting hole of the finished seat frame.

[0014] As a further solution of the utility model: a sizing area is further provided in the stamping area. A sizing punch is provided on the lower die part of the sizing area, and a sizing inner top and a sizing cavity sleeved on the sizing inner top are provided on the upper die part of the sizing area. The sizing punch, the sizing inner top and the sizing cavity cooperate with each other to perform a sizing stamping operation on the process blank, so that the shape of the formed process blank is more accurate.

[0015] As a further solution of the utility model: a fourth punch is provided on the lower die part of the rotary cutting and blanking area, and a rotary cutting assembly is provided on the upper die part of the rotary cutting and blanking area. The rotary cutting assembly and the fourth punch cooperate with each other to perform a rotary cutting operation on the side wall of the process blank, and then form a finished seat frame for blanking.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. By providing the first trimming knife and the second trimming knife with special shapes in the front trimming area, the original strip can be stamped into a strip-shaped oval-shaped formed strip in the front trimming area, so that the subsequent stretching operation can be more smoothly formed into a square tubular process blank, and it can ensure to the greatest extent that the thickness of the strip does not change during the subsequent stretching process, so that the thickness of the bottom wall and the side wall of the finally formed finished seat frame meets the production requirements.

[0018] 2. By separately providing the first stretching area and the second stretching area, two independent stretching forming operations are performed on the process blank, so that it can first perform a large-size pre-stretching to stamp and form a preliminary square tubular process blank. Then, a second precise-size post-stretching is performed to reduce the internal and external dimensions of the product, and at the same time, the size of the R corner at the top of the process blank can also be reduced, so that the size of the process blank basically meets the size of the final product.

[0019] 3. The relevant components in the card slot stamping area are also used to perform a stamping forming operation on the snap groove on the inner wall of the process blank, so that the snap groove can be stamped and formed on the inner side wall on the basis of ensuring that the side wall of the process blank does not deform.

[0020] 4. By providing a sizing area, a further stamping forming operation is performed on the process blank to make its shape and size more in line with the preset parameters. At the same time, after sizing, a forming operation of the rear punching area is performed to avoid affecting the handle mounting hole during the sizing process, resulting in too large a difference in size during the subsequent handle installation and affecting the installation operation.

[0021] Therefore, through the above improvements, the present utility model can provide a mechanical device for continuously stamping the handle holder of a door handle, which optimizes and improves under the existing stretching process conditions, improves the material plasticity of the original strip, and improves the product forming state by improving the stretching stress condition of the material, so as to achieve the purpose of the design requirements and ensure the production quality of the finished holder.

[0022] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 is a schematic structural diagram of the upper die part and the lower die part of the present utility model;

[0025] Figure 2 is a schematic structural diagram of the lower die part and the original strip of the present utility model;

[0026] Figure 3 is a schematic structural diagram of the component structures of each region of the lower die part of the present utility model;

[0027] Figure 4 is a schematic structural diagram of the component structures of each region of the upper die part of the present utility model;

[0028] Figure 5 is a schematic structural diagram of the component structure of the card slot stamping area of the present utility model;

[0029] Figure 6 is a schematic structural diagram of the component structure of the rotary cutting and blanking area of the present utility model;

[0030] Figure 7 is a schematic structural diagram of the original strip, the process blank and the finished holder of the present utility model;

[0031] Figure 8 is a schematic structural diagram of the finished holder of the present utility model.

[0032] The reference numerals and names in the drawings are as follows:

[0033] 10 Lower die part; 11 Upper die part; 12 Stamping area; 13 Feeding end; 14 Discharging end; 15 Edge positioning pin; 16 Edge positioning block; 20 Front cutting area; 211 Center punching knife; 212 Edge punching knife; 213 Partition punching knife; 214 First cutting knife; 215 Second cutting knife; 221 Center positioning tool holder; 222 Edge positioning tool holder; 223 Partition tool holder; 224 First blanking tool holder; 225 Second blanking tool holder; 30 First stretching area; 31 First inner top; 32 First cavity; 33 First punch; 40 Second stretching area; 41 Second inner top; 42 Second cavity; 43 Second punch; 50 Groove stamping area; 51 Wedge assembly; 52 Active inclined plane; 53 Groove slider; 54 Passive inclined plane; 55 Groove convex block; 56 Side wall slider; 57 Side wall pressing block; 60 Shaping area; 61 Shaping punch; 62 Shaping cavity; 63 Shaping inner top; 70 Rear punching area; 71 Third punch; 72 Rear punching knife; 73 Third inner top; 80 Rotary cutting and blanking area; 81 Fourth punch; 82 Rotary cutting assembly; 83 Rotary cutting slider; 84 Rotary cutting guide rail; 85 Rotary cutting edge; 90 Original strip; 91 Process blank; 92 Finished seat frame; 93 Snap groove; 94 Handle mounting hole; 95 Center positioning hole; 96 Edge positioning hole; 97 Strip extension edge; 98 Blank connecting strip. Detailed implementation mode

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to Figures 1 to 8 , in the embodiment of the present invention, a mechanical device for continuously stamping a door handle grip seat frame includes a lower die part 10 set as a fixed die and an upper die part 11 set as a moving die. A stamping area 12 is formed between the lower die part 10 and the upper die part 11. The original strip 90 continuously moves from the feeding end 13 of the lower die part 10 into the stamping area 12, so that the upper die part 11 performs continuous stamping operations on the strip to form a grip seat frame, and discharges the material from the discharging end 14 of the lower die part 10; along the advancing direction of the original strip 90, the stamping area 12 is successively provided with a front cutting area 20, a first stretching area 30, a second stretching area 40, a groove stamping area 50, a rear punching area 70 and a rotary cutting and blanking area 80. The original strip 90 passes through the above areas in sequence, and is thus successively stamped into a process blank 91 and finally continuously stamped into a finished seat frame 92.

[0036] Specifically, the continuous stamping mechanical equipment of the present utility model mainly adopts technical die structures such as cutting, extrusion, stretching, and rotary cutting, and performs multiple stretching, extrusion forming, rotary cutting and other forming operations on metal materials such as copper, aluminum, and iron, so that it can be stamped into a preset product shape.

[0037] Secondly, the door handle is an indispensable door accessory that has both decorative and functional properties. Usually, a door handle is needed when opening and closing the door. In order to install and fix the door handle, a corresponding base needs to be set, such as a door handle grip base. As Figure 8 shown, similarly, in order to install the grip base on the door panel, a corresponding buckle groove 93 also needs to be set on the grip base. At the same time, a corresponding handle mounting hole 94 also needs to be set for installing the door handle. For the grip base made of metal material, its size and appearance need to be specially made to prevent the size from not meeting the installation requirements and to prevent problems such as uneven and rough surfaces of the grip base that affect the product appearance.

[0038] In the mechanical equipment for continuous stamping of the door handle grip base in the present utility model, through research and design analysis, the clearance between the male and female dies undergoes successive extrusion of materials to undergo plastic deformation to meet the requirements of the product drawing dimensions, and the surfaces of the male and female dies are professionally treated to make them smooth and wear-resistant; after the above process design and treatment of the male and female dies, the inner and outer surfaces of the product are closely attached to the surfaces of the male and female dies and the excess materials around the product are extruded to the opening waste area, which can make the top and the materials around the whole circumference of the process blank 91 have the same thickness, and make the surface of the process blank 91 not bulge, not deformed, flat, smooth, and without grinding, and then the required finished product seat 92 can be stamped. Thereby reducing the production cost and increasing the production efficiency.

[0039] As Figures 2 to 4 shown, preferably, the upper die part 11 of the front cutting area 20 is provided with a center punching knife 211, an edge punching knife 212, a partition punching knife 213, a first cutting knife 214 and a second cutting knife 215, and the lower die part 10 of the front cutting area 20 is provided with corresponding center positioning knife seats 221, edge positioning knife seats 222, partition knife seats 223, a first blanking knife seat 224 and a second blanking knife seat 225, so as to cooperate with each other to stamp and form the center positioning hole 95, edge positioning hole 96, strip extension edge 97 and blank connecting strip 98 of the process blank 91.

[0040] Specifically, in order to position the original strip 90, it is preferable to set a center punching tool 211 and an edge punching tool 212 to punch the original strip 90 to form a center positioning hole 95 and an edge positioning hole 96. For the center positioning hole 95, a through hole with a relatively small diameter can be punched first, so that corresponding center positioning components can be set in the subsequent stamping die to position the center positioning hole 95, enabling the subsequent stamping die to perform stamping operations more accurately. In addition, by setting a first blanking edge tool and a second blanking edge tool 215 with special shapes, the original strip 90 is respectively cut to form a shape in which the process blank 91, the blank connecting strip 98, and the strip extension edge 97 are connected to each other, facilitating the subsequent stamping and forming operations of the process blank 91.

[0041] As Figure 5 and Figure 7 shown, preferably, the upper die part 11 is further provided with a plurality of edge positioning pins 15. The edge positioning pins 15 are fixedly connected to the position of the upper die part 11 corresponding to the edge positioning hole 96 of the process blank 91, so that the edge positioning pins 15 can penetrate into the edge positioning hole 96 during the stamping process, thereby positioning the process blank 91.

[0042] Specifically, in multiple different areas of the stamping area 12, a plurality of edge positioning pins 15 can be respectively set, and corresponding positioning operations are carried out by using the edge positioning holes 96 on the process blank 91, so that in the subsequent stamping and forming operations, the process blank 91 can be accurately positioned at the corresponding operation stations for corresponding stamping and forming operations. In addition, a plurality of edge positioning blocks 16 can be provided at the position of the lower die part 10 corresponding to the strip extension edge 97, and the edge positioning blocks 16 are used to limit the strip extension edge 97.

[0043] As Figures 2 to 4 shown, preferably, the upper die part 11 of the first stretching area 30 is provided with a first inner punch 31 and a first cavity 32 sleeved on the first inner punch 31. The lower die part 10 of the first stretching area 30 is provided with a first punch 33. The first punch 33, the first inner punch 31, and the first cavity 32 cooperate with each other to perform the first stretching stamping on the strip, so that the strip is formed into a process blank 91 in the shape of a square cylinder. The upper die part 11 of the second stretching area 40 is provided with a second inner punch 41 and a second cavity 42 sleeved on the second inner punch 41. The lower die part 10 of the second stretching area 40 is provided with a second punch 43. The second punch 43, the second inner punch 41, and the second cavity 42 cooperate with each other to perform the second stretching stamping on the strip, so that the strip is formed into a process blank 91 in the shape of a square cylinder.

[0044] Specifically, by separately setting the first stretching area 30 and the second stretching area 40, two independent stretching and forming operations are performed on the process blank 91, enabling it to first undergo a large-size pre-stretching to stamping form the initial square tubular process blank 91. Then, a second precise-size post-stretching is carried out to reduce the internal and external dimensions of the product. At the same time, the size of the R corner at the top of the process blank 91 can also be reduced, making the size of the process blank 91 more in line with the size of the final product.

[0045] As Figures 2 to 5 shown, preferably, the upper die part 11 of the card slot stamping area 50 is provided with two sets of wedge components 51 symmetrically arranged; the lower die part 10 of the card slot stamping area 50 is provided with two sets of card slot sliders 53, which are respectively arranged at both ends in the long side direction of the process blank 91 and can penetrate into the tubular space of the process blank 91 and abut against the inner side wall in the short side direction of the process blank 91. The side walls of the two sets of card slot sliders 53 facing the short side direction of the process blank 91 are respectively provided with card slot protrusions 55, and the card slot protrusions 55 are fixedly connected to the card slot sliders 53; the two sets of card slot sliders 53 are provided with passive inclined surfaces 54 corresponding to the positions of the active inclined surfaces 52 on both sides of the wedge component 51. Thus, when the upper die part 11 performs a downward stamping operation, the active inclined surface 52 of the wedge component 51 cooperates with the passive inclined surface 54 of the card slot slider 53, converting the vertical movement of the wedge component 51 into the horizontal movement of the card slot slider 53, and further pushing the card slot protrusion 55 to form a stamping on the inner side wall of the process blank 91 to form a corresponding snap groove 93.

[0046] Specifically, a wedge is a simple mechanical tool. It is a wooden peg, wooden piece, etc. used to fill the gaps of objects to make them firm. It consists of two inclined surfaces and is a small wooden peg that is thick at the top and sharp at the bottom, used to separate objects. The principle is mainly to convert the downward force of the wedge into a horizontal force on the object. Using the active inclined surfaces 52 on both sides of the wedge component 51, when the wedge component 51 is driven by the upper die part 11 to move downward, its active inclined surface 52 can drive the passive inclined surface 54 of the card slot slider 53, causing it to move horizontally a certain distance. And as Figure 5 shown, the active inclined surfaces 52 on both sides of the wedge component 51 can exactly abut against and drive the two passive inclined surfaces 54 of the two card slot sliders 53, causing the two card slot sliders 53 to separate from each other by a certain distance, thereby driving the card slot protrusions 55 on the card slot sliders 53 to squeeze the inner side wall of the process blank 91 to form a stamping formed snap groove 93.

[0047] Secondly, at a position on the side of the card slot slider 53 close to the lower die part 10, corresponding sliding shafts (not shown in the figure) and springs (not shown in the figure) can also be provided to elastically drive the card slot slider 53 so that the two card slot sliders 53 maintain an initial position relatively close to each other, enabling the process blank 91 to be smoothly sleeved on the card slot slider 53. After the wedge assembly 51 moves upward following the upper die part 11, the card slot slider 53 can also be driven by the spring force to return to the initial position.

[0048] As Figures 2 to 5 shown, preferably, the lower die part 10 of the card slot stamping area 50 is further provided with two groups of side wall sliders 56, which are respectively arranged at both ends in the long side direction of the process blank 91 and can slidably abut against the outer sides of the side walls in the short side direction of the process blank 91. The upper die part 11 of the card slot stamping area 50 is further provided with two groups of side wall pressing blocks 57 corresponding to the side wall sliders 56. The side wall pressing blocks 57 and the side wall sliders 56 cooperate with each other so that the side wall pressing blocks 57 form a lateral drive on the side wall sliders 56 under the drive of the upper die part 11, causing them to move a certain distance and abut against the outer sides of the side walls in the short side direction of the process blank 91.

[0049] Specifically, the two groups of side wall sliders 56 are respectively slidably connected to the lower die part 10, and the two groups of side wall pressing blocks 57 are respectively fixedly connected to the upper die part 11. When the upper die part 11 moves downward driven by an external stamping power device, the hypotenuse of the side wall pressing block 57 can abut against the hypotenuse of the side wall slider 56, thereby driving the side wall slider 56 to move laterally, so as to form an abutment against the outer sides of the side walls in the short side direction of the process blank 91 and limit it to prevent side wall deformation.

[0050] Secondly, as Figure 5 shown, a side wall spring is further provided between the side wall slider 56 and the lower die part 10, so that the side wall slider 56 can keep away from the card slot slider 53 in the initial state, enabling the process blank 91 to be smoothly sleeved on the card slot slider 53.

[0051] As Figure 3 、 Figure 4 、 Figure 7 and Figure 8 shown, preferably, the lower die part 10 of the rear punching area 70 is provided with a third punch 71, the upper die part 11 of the rear punching area 70 is provided with a third inner top 73 and a rear punching knife 72. The third punch 71, the third inner top 73 and the rear punching knife 72 cooperate with each other to perform a rear punching operation on the process blank 91, thereby punching out the handle mounting hole 94 of the finished product seat frame 92.

[0052] Specifically, for the handle mounting hole 94, since it is opened at the top of the finished seat frame 92 and its diameter is close to the length of the short side of the finished seat frame 92, when punching, it is preferred to set the third punch 71 to cooperate with the third inner top 73, so that the rear-stage punching knife 72 can accurately open a hole in it without affecting the dimensions of the side wall and the top wall of the finished seat frame 92 and preventing excessive dimensional errors.

[0053] As Figure 3 and Figure 4 shown, preferably, the stamping area 12 is further provided with a shaping area 60. The lower die part 10 of the shaping area 60 is provided with a shaping punch 61, the upper die part 11 of the shaping area 60 is provided with a shaping inner top 63 and a shaping cavity 62 sleeved on the shaping inner top 63. The shaping punch 61, the shaping inner top 63 and the shaping cavity 62 cooperate with each other to perform a shaping stamping operation on the process blank 91, making the shape of the process blank 91 more accurate.

[0054] Specifically, a shaping area 60 can also be set to perform a further stamping and forming operation on the process blank 91, making its shape and dimensions more in line with the preset parameters. At the same time, after shaping, the forming operation of the rear-stage punching is carried out to avoid affecting the handle mounting hole 94 during the shaping process, resulting in too large a difference in dimensions during the subsequent installation of the handle and affecting the installation operation.

[0055] As Figure 3 , Figure 4 and Figure 6 shown, preferably, the lower die part 10 of the rotary cutting and blanking area 80 is provided with a fourth punch 81, and the upper die part 11 of the rotary cutting and blanking area 80 is provided with a rotary cutting assembly 82. The rotary cutting assembly 82 and the fourth punch 81 cooperate with each other to perform a rotary cutting operation on the side wall of the process blank 91, thereby forming the finished seat frame 92 and performing blanking.

[0056] Specifically, the rotary cutting assembly 82 can be installed and used with a rotary cutting component in the prior art, so that it can perform a rotary cutting operation on the finished seat frame 92 after stamping and forming, separate it from the batching connecting strip, and then perform blanking to complete the entire process of stamping and forming.

[0057] For example, the rotary cutting assembly 82 can be provided with a rotary cutting slider 83, a rotary cutting guide rail 84 and a rotary cutting edge 85. The rotary cutting slider 83, the rotary cutting guide rail 84 and the rotary cutting edge 85 cooperate with each other to perform a rotary cutting operation on the process blank 91 under the drive of the upper die part 11, so that it is cut into the shape of the finished seat frame 92 and corresponding blanking is carried out.

[0058] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A mechanical device for continuously stamping a door handle handle frame, characterized in that: The invention comprises a lower die portion (10) configured as a fixed die and an upper die portion (11) configured as a movable die. A stamping area (12) is formed between the lower die portion (10) and the upper die portion (11). The stamping area (12) is provided with a front trimming area (20), a first stretching area (30), a second stretching area (40), a slot stamping area (50), a rear punching area (70) and a rotary cutting area (80) in sequence along the direction of travel of the original material strip (90). The original material strip (90) passes through the above-mentioned areas in sequence, thereby being stamped into process blanks (91) in sequence, and finally being continuously stamped into a finished product seat frame (92).

2. A mechanical device for continuously stamping a door handle handle frame according to claim 1, characterized in that: The upper die portion (11) of the front trimming area (20) is provided with a center punching knife (211), an edge punching knife (212), a partition punching knife (213), a first trimming knife (214) and a second trimming knife (215), and the lower die portion (10) of the front trimming area (20) is provided with a corresponding center positioning knife seat (221), an edge positioning knife seat (222), a partition knife seat (223), a first punching knife seat (224) and a second punching knife seat (225), so that they cooperate with each other to punch out a center positioning hole (95), an edge positioning hole (96), a material strip extension edge (97) and a blank connecting strip (98) of a process blank (91).

3. The mechanical equipment for continuously stamping door handle handle base according to claim 2, characterized in that: The upper die portion (11) is further provided with a plurality of edge positioning needles (15), the edge positioning needles (15) being fixedly connected to positions of the upper die portion (11) corresponding to edge positioning holes (96) of the process blank (91), so that the edge positioning needles (15) can penetrate into the edge positioning holes (96) during the stamping process, thereby performing a positioning operation on the process blank (91).

4. The mechanical equipment for continuously stamping a door handle handle frame according to claim 3, characterized in that: The upper die portion (11) of the first stretching zone (30) is provided with a first inner top (31) and a first cavity (32) sleeved on the first inner top (31); the lower die portion (10) of the first stretching zone (30) is provided with a first punch (33); the first punch (33), the first inner top (31) and the first cavity (32) cooperate with each other to perform a first stretching and stamping on the material strip, so that the material strip is formed into a square cylindrical process blank (91).

5. The mechanical equipment for continuously stamping door handle handle base according to claim 4, characterized in that: The upper die portion (11) of the second stretching zone (40) is provided with a second inner top (41) and a second cavity (42) sleeved on the second inner top (41); the lower die portion (10) of the second stretching zone (40) is provided with a second punch (43); the second punch (43), the second inner top (41) and the second cavity (42) cooperate with each other to perform a second stretching and stamping on the material strip, so that the material strip is formed into a square cylindrical process blank (91).

6. The mechanical equipment for continuously stamping door handle handle base according to claim 5, characterized in that: The upper die portion (11) of the slot stamping area (50) is provided with two groups of symmetrically arranged wedge assemblies (51); the lower die portion (10) of the slot stamping area (50) is provided with two groups of slot sliders (53), which are respectively arranged at the two ends of the long side direction of the process blank (91) and can penetrate into the cylindrical space of the process blank (91) and abut against the inner side of the side wall of the short side direction of the process blank (91); the two groups of slot sliders (53) are respectively provided with slot protrusions (55) on the side walls facing the short side direction of the process blank (91); the slot protrusions (55) are fixedly connected to the slot sliders (53); the two groups of slot sliders (53) are provided with passive inclined surfaces (54) at the positions corresponding to the active inclined surfaces (52) on both sides of the wedge assemblies (51).

7. The mechanical equipment for continuously stamping door handle handle base according to claim 6, characterized in that: The lower die portion (10) of the slot stamping area (50) is further provided with two groups of side wall slide blocks (56), which are respectively arranged at the two ends of the long side direction of the process blank (91) and can be slidably abutted against the outer side of the side wall of the short side direction of the process blank (91), and the upper die portion (11) of the slot stamping area (50) is further provided with two groups of side wall pressing blocks (57) corresponding to the side wall slide blocks (56).

8. The mechanical equipment for continuously stamping door handle handle base according to claim 7, characterized in that: The lower die portion (10) of the rear-stage punching area (70) is provided with a third punch (71), and the upper die portion (11) of the rear-stage punching area (70) is provided with a third inner top (73) and a rear-stage punching knife (72). The third punch (71), the third inner top (73) and the rear-stage punching knife (72) cooperate with each other to perform a rear-stage punching operation on the process blank (91), thereby punching out a handle mounting hole (94) of the finished seat frame (92).

9. The mechanical equipment for continuously stamping door handle handle base according to claim 8, characterized in that: The stamping area (12) is further provided with a shaping area (60), the lower die portion (10) of the shaping area (60) is provided with a shaping punch (61), the upper die portion (11) of the shaping area (60) is provided with a shaping inner top (63) and a shaping cavity (62) sleeved on the shaping inner top (63), the shaping punch (61), the shaping inner top (63) and the shaping cavity (62) cooperate with each other to perform a shaping stamping operation on the process blank (91), so that the shape of the process blank (91) is more accurate.

10. The mechanical equipment for continuously stamping door handle handle base according to claim 8, characterized in that: The lower die portion (10) of the rotary cutting blanking zone (80) is provided with a fourth punch (81), and the upper die portion (11) of the rotary cutting blanking zone (80) is provided with a rotary cutting assembly (82). The rotary cutting assembly (82) and the fourth punch (81) cooperate with each other to perform a rotary cutting operation on the side wall of the process blank (91), thereby forming a finished product frame (92) for blanking.

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