Full-automatic processing and forming device for joint fork

Abstract

The invention discloses a full-automatic yoke machining and forming device which comprises a bottom plate, a top plate capable of moving up and down relatively is arranged over the bottom plate, and the top plate is arranged in the direction of the central axis of the bottom plate. The blanking assembly is used for blanking a profile into a blanking blank, the trimming assembly is used for trimming yoke heads at the two ends of the blanking blank, the pressing assembly is used for pressing the horizontal plane of the yoke heads into an arc-shaped surface, and the stamping assembly is used for stamping the blanking blank into a U-shaped yoke blank. The punching assembly is used for punching the bottom of the joint fork blank, the chamfering assembly is used for chamfering a punched hole in the bottom, and the hole drawing assembly is used for drawing a hole in the bottom. The full-automatic section bar punching machine has the main beneficial effects that the design is exquisite, full-automatic punching machining of section bars is achieved through the punching assembly, the trimming assembly, the pressing assembly, the stamping assembly, the punching assembly, the chamfering assembly and the hole drawing assembly, machining is simple, convenient, stable and reliable, and the production efficiency of the section bars is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of yoke forming, and in particular to a fully automatic processing and forming device for a yoke. Background Art

[0002] The yoke is a thick sheet metal stamping part and a key component of the steering system intermediate shaft, transmitting and changing steering torque. This part is primarily used on high-torque intermediate shafts to meet the high torque requirements of the assembly.

[0003] Stamping die is a special process equipment used to process materials into parts in cold stamping process. It is called cold stamping die. Stamping is a pressure processing method that uses a die installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation, thereby obtaining the required parts.

[0004] When using existing stamping dies, generally a die mounted on a press is used to apply pressure to the material, causing the raw material in the die to separate or plastically deform, thereby obtaining parts of the desired shape and structure under the action of stamping. For example, application number CN201310266230.8 relates to a stamping die, belonging to the field of metal stamping technology. The stamping die includes an upper die base and a lower die base that are relatively arranged. The upper die base is provided with a punch, and the lower die base is provided with a die. The die is provided with a pressure plate for pressing the edge of the stamped part. However, many molds require the use of a punching process during operation. At present, it is usually necessary to punch the holes in advance and then punch the holes after the punching is completed. Such a process not only makes the holes prone to cracking, but also the size cannot be guaranteed and cannot meet customer needs. Therefore, it is necessary to improve the original processing mold. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a fully automatic processing and forming device for a yoke.

[0006] The purpose of the present invention is achieved through the following technical solutions: A fully automatic processing and forming device for a yoke comprises a bottom plate, a top plate which can move up and down relatively to the bottom plate is provided just above the bottom plate, and a blanking assembly for blanking a profile into a blank, a trimming assembly for trimming the yoke heads at both ends of the blank, a pressing assembly for pressing the horizontal surface of the yoke heads into an arcuate surface, a punching assembly for punching the blank into a U-shaped yoke blank, a punching assembly for punching a hole in the bottom of the yoke blank, a chamfering assembly for chamfering the punched hole on the bottom, and a punching assembly for punching a hole in the bottom. The chamfering assembly at least includes a chamfering lower die fixedly arranged on the bottom plate, a chamfering receiving groove is provided on the chamfering lower die, a chamfering support block is built into the chamfering receiving groove, and a chamfering contour groove is provided on the chamfering support block that is contoured to the bottom; a chamfering receiving groove is provided in the middle of the chamfering support block, a chamfering block adapted thereto is built into the chamfering receiving groove, a chamfering groove is provided on the chamfering block, a plug-in hole is provided in the center of the chamfering groove, and upwardly protruding retaining rings are provided around the plug-in hole; a chamfering upper die is fixedly arranged on the top plate, a chamfering insertion rod is fixedly arranged on the chamfering upper die, the bottom of the chamfering insertion rod is truncated cone-shaped and can be inserted into the insertion hole.

[0007] Preferably, the chamfered lower mold comprises at least a chamfered lower template fixedly mounted on the bottom plate and a chamfered lower support plate arranged on the chamfered lower template, the chamfered lower support plate being provided with the chamfered receiving groove; a chamfered pivot block is provided in the chamfered receiving groove, the chamfered pivot block is located at both ends of the chamfered support block, a chamfered pressing block is provided on the chamfered pivot block through a pin pivot, a chamfering pressing head is fixed on the inner side of the chamfering pressing block, the chamfering pressing head can be pressed on the upper surface of the bottom, a chamfered opening is provided on the chamfered support block, a chamfered spring is built in the chamfered opening, the chamfered The spring can abut against the chamfer pressing head; the two sides of the chamfer support block are also provided with chamfer positioning blocks fixed on the chamfer lower support plate, and the chamfer positioning block is provided with a chamfer positioning groove adapted to the outer wall of the yoke head on the yoke blank; the chamfer upper die at least includes a chamfer upper template fixed on the top plate and a chamfer upper support plate fixed on the chamfer upper template, a chamfer fixing plate is fixed on the chamfer upper template, a chamfer fixing block is fixed on the chamfer fixing plate, the chamfer fixing block can be pressed on the chamfer pressing head, and the chamfer insert rod is fixed on the chamfer fixing block.

[0008] Preferably, the blanking assembly at least includes a support block fixed on the bottom plate, on which a blanking lower support plate, a blanking lower support block, a blanking upper support plate and a blanking upper support block are fixed in sequence, and the blanking lower support plate and the blanking upper support plate are both provided with a slide groove, and the height of the slide groove is greater than or equal to the height of the profile; a blanking plate is fixed on the top plate, and a blanking knife is fixed on the blanking plate, and the blanking lower support plate, the blanking lower support block, the blanking upper support plate and the blanking upper support block are all provided with a blanking hole compatible with the blanking knife.

[0009] Preferably, a support plate is provided on one side of the support block, a push cylinder is fixed on the support plate, a push plate is fixed on the cylinder shaft of the push cylinder, and the push plate is located in the slide groove of the punching lower support plate; a bearing plate is provided on the other side of the support block.

[0010] Preferably, the trimming assembly at least includes a trimming lower template fixed on the bottom plate and a trimming supporting plate fixed on the trimming lower template, a trimming positioning block is fixed on the trimming supporting plate, and a trimming positioning groove with a contoured design that is similar to the outer side surface of the blank is opened on the inner side of the trimming positioning block; a trimming upper template, a trimming upper support block and a trimming pressing plate are fixed on the top plate in sequence, a trimming cutter is fixed on the trimming upper template, and the trimming cutter can be at least partially extended and placed in the cutting groove of the trimming supporting plate.

[0011] Preferably, the pressing assembly at least includes a pressing lower template fixed on the bottom plate and a pressing support block fixed on the pressing lower template, pressing positioning blocks are provided on both sides of the pressing support block, the inner side of the pressing positioning block is provided with a pressing positioning groove which is designed in the shape of the outer side surface of the blank, and the top of the pressing support block is provided with an arc-shaped pressing groove; a pressing upper template is fixed on the top plate, a pressing plate is fixed on the pressing upper template, a force block is fixed on the pressing plate, and a force pressure head which is adapted to the pressing groove is provided at the bottom of the force block.

[0012] Preferably, the stamping assembly at least includes a stamping lower template fixed on the bottom plate, the stamping lower template has a built-in stamping block, stamping positioning blocks are fixed on both sides of the stamping block, the inner side of the stamping positioning block is provided with a stamping positioning groove designed to imitate the outer side surface of the blank, and the stamping block is provided with a stamping groove adapted to the bottom; a stamping upper template and a stamping support plate are fixed on the top plate, and a stamping head is fixed on the stamping support plate.

[0013] Preferably, the punching assembly at least includes a punching lower template fixed on the bottom plate and a punching lower support plate arranged on the punching lower template, a punching block is fixed on the punching lower support plate, punching positioning blocks are provided on both sides of the punching block, and a punching positioning groove adapted to the outer contour of the yoke blank is opened on the inner side of the punching positioning block; a punching upper template, a punching upper support plate and a punching fixing plate are fixed on the top plate, a punching head is fixed on the punching upper support plate, the punching head passes through the punching fixing plate and can be extended and placed in the punching block.

[0014] Preferably, the hole-drawing assembly at least includes a hole-drawing lower template and a hole-drawing lower support plate fixed on the bottom plate, a hole-drawing lower support plate is fixed on the hole-drawing lower support plate, a hole-drawing carrier block is provided on the hole-drawing carrier block, a hole-drawing profiling groove designed to imitate the bottom; an insertion hole is provided at the center of the hole-drawing profiling groove; an hole-drawing upper template, a hole-drawing upper support plate and a hole-drawing fixing plate are fixed on the top plate, a hole-drawing rod adapted to the insertion hole is fixed on the hole-drawing upper support plate, and the hole-drawing rod can pass through the hole-drawing fixing plate and be inserted into the insertion hole.

[0015] Preferably, both ends of the extraction hole carrier block are fixed with an extraction hole pivot block, and the extraction hole pivot block is provided with a extraction hole pressing block through a pin pivot, and the inner side of the extraction hole pressing block is fixed with a extraction hole pressing head, and the extraction hole pressing head can be pressed on the upper surface of the bottom, and the extraction hole lower support plate is provided with an extraction hole opening, and the extraction hole opening is equipped with an extraction hole spring, and the extraction hole spring can abut against the lower surface of the extraction hole pressing head; the extraction hole fixing plate is fixed with a extraction hole fixing block, and the lower surface of the extraction hole fixing block can abut against the upper surface of the extraction hole pressing head.

[0016] The beneficial effects of the present invention are mainly reflected in: The design is sophisticated, and the profile is fully automatically punched through the blanking assembly, trimming assembly, pressing assembly, stamping assembly, punching assembly, chamfering assembly and hole-drawing assembly. The processing is simple and convenient, stable and reliable, and greatly improves the production efficiency of the yoke. In addition, all components are driven by the same drive source to drive the top plate downward, which can effectively save processing costs and mold costs, thereby solving the problems of high processing costs and complicated procedures for yoke processing. It has a wide applicability and is convenient for mass production.

[0017] The chamfering support and positioning blocks limit the axial movement of the base, preventing displacement or movement during the chamfering process and improving punching accuracy. Furthermore, the retaining ring changes the radial grain direction of the base to an axial grain direction, reducing material flow and fracture during the forming process, improving product quality and lowering production costs by reducing the defective product rate.

[0018] The chamfering head presses against the upper surface of the base, limiting axial and radial movement, preventing displacement or movement during the chamfering process and improving chamfer accuracy. Furthermore, a chamfering spring resets the head, ensuring ease of subsequent work and significantly improving efficiency.

[0019] As the profile moves within the chute on the upper blanking support plate, the blanking plate moves downward, using the blanking knife to punch the profile into a blank. The blank then falls into the chute on the lower blanking support plate. At this point, the push cylinder drives the push plate to push the blank into the carrier plate. This simple and convenient operation can greatly improve work efficiency.

[0020] The positioning block can limit the axial movement of the blank to avoid displacement or movement during the trimming process, ensuring the accuracy of trimming.

[0021] The hole-drawing support block can limit the axial movement of the bottom, avoiding displacement or movement during the chamfering process, and improving the accuracy of the hole-drawing. In addition, the hole-drawing rod is inserted into the socket to limit the position of the hole-drawing, improving accuracy. The hole-drawing pressing head presses on the upper surface of the bottom to limit the axial and radial movement of the bottom, avoiding displacement or movement during the hole-drawing project, and improving the accuracy of the hole-drawing. In addition, the hole-drawing spring can reset the hole-drawing pressing head to ensure convenience in subsequent work and greatly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings: Figure 1 : A three-dimensional diagram of the blank on each component in a preferred embodiment of the present invention; Figure 2 : A perspective view of a preferred embodiment of the present invention; Figure 3 : A cross-sectional view of a preferred embodiment of the present invention; Figure 4 : A cross-sectional view of a chamfering assembly in a preferred embodiment of the present invention; Figure 5 : A three-dimensional view of the chamfering assembly in a preferred embodiment of the present invention, wherein the chamfering upper die is removed; Figure 6 : Figure 3 Enlarged view of part A; Figure 7 : Figure 2 Enlarged view of section G; Figure 8 : Figure 3 Enlarged view of part B; Figure 9 : Figure 3 Enlarged view of part C; Figure 10 : Figure 3 Enlarged view of part D in the middle; Figure 11 : Figure 3 Enlarged view of part E in the middle; Figure 12 : A three-dimensional view of the punching assembly in a preferred embodiment of the present invention, wherein the punching upper template, the punching upper support plate, and the punching fixing plate are removed; Figure 13 : Figure 3 Enlarged view of part F; Figure 14 : A three-dimensional diagram of the hole-drawing assembly in a preferred embodiment of the present invention, at this time, the hole-drawing lower template, the hole-drawing lower support plate, the hole-drawing upper template, the hole-drawing upper support plate and the hole-drawing fixing plate are removed. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional modifications made by those skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0026] like Figures 1 to 14 As shown, the present invention discloses a fully automatic processing and forming device for a yoke, comprising a base plate 1, a top plate 2 which can move up and down relatively is provided just above the base plate 1, preferably, a guide sleeve is fixedly provided on the base plate 1, and a guide column is provided on the top plate 2, and the guide column is adapted to the guide sleeve, and can guide the movement of the top plate 2 to ensure the accuracy of the moving position. Of course, other positioning and guiding structures can also be used. In addition, the top plate 2 can move toward the base plate 1 under the drive of the downward pressure component. In this embodiment, the downward pressure component can be a downward pressure cylinder, or other downward pressure driving sources, all of which are within the protection scope of the present invention.

[0027] In the present invention, along the central axis direction of the base plate 1, the base plate 1 is provided with a punching component 3 for punching the profile 100 into a blank 101, a trimming component 4 for trimming the yoke head 102 at both ends of the blank 101, a pressing component 5 for pressing the horizontal surface of the yoke head 102 into an arc surface, a punching component 6 for punching the blank 101 into a U-shaped yoke blank 103, a punching component 7 for punching the bottom 104 on the yoke blank 103, a chamfering component 8 for chamfering the punched hole 105 on the bottom 104 and a punching component 9 for punching holes in the bottom 104. One side of the base plate 1 is provided with a manipulator or a step-by-step transport assembly for clamping and transporting the profile 100 to the adjacent assembly in front. The manipulator or step-by-step transport assembly corresponds to each assembly one by one. The manipulator or step-by-step transport assembly is not the design point of the present invention and is all prior art. Therefore, the present invention will not be described in detail here. The above design is sophisticated. The profile is fully automatically punched and processed by the punching assembly, trimming assembly, pressing assembly, stamping assembly, punching assembly, chamfering assembly and hole-drawing assembly. The processing is simple and convenient, stable and reliable, and greatly improves the production efficiency of the yoke. In addition, all components are driven by the same downward pressure assembly to move the top plate 2 downward, which can effectively save processing costs and mold costs, thereby solving the problems of high processing costs and complicated processes for yoke processing. It has a wide applicability and is convenient for mass production.

[0028] Specifically, if Figure 6 and Figure 7 As shown, the blanking assembly 3 at least includes a support block 31 fixed to the bottom plate 1, on which a lower blanking support plate 311, a lower blanking support block 312, an upper blanking support plate 313, and an upper blanking support block 314 are fixed in sequence. The lower blanking support plate 311 and the upper blanking support plate 313 are each provided with a chute 315, the height of which is greater than or equal to the height of the profile 100. A blanking plate 316 is fixed to the top plate 2, on which a blanking knife 317 is fixed. The lower blanking support plate 311, the lower blanking support block 312, the upper blanking support plate 313, and the upper blanking support block 314 are each provided with a blanking hole 318 adapted to the blanking knife 317. Furthermore, in this preferred embodiment, a bearing plate 35 is provided on one side of the support block 31, and a support plate 32 is provided on the other side of the support block 31. A push cylinder 33 is fixed on the support plate 32, and a push plate 34 is fixed on the cylinder shaft of the push cylinder 33. The push plate 34 is located in the slide groove 315 of the punching lower support plate 311.

[0029] The above layout is reasonable. When the profile 100 moves in the chute 315 on the upper blanking support plate 313, the blanking plate 316 moves downward and uses the blanking knife to blank the profile 100 into a blank 101. The blank 101 falls into the chute 315 on the lower blanking support plate 311. At this time, the pushing cylinder 33 is driven to push the blank 101 into the carrier plate 35 via the push plate 34. This operation is simple and convenient, which can greatly improve work efficiency.

[0030] like Figure 8 As shown, the trimming assembly 4 at least includes a trimming lower template 41 fixed to the bottom plate 1 and a trimming support plate 42 fixed to the trimming lower template 41. The trimming support plate 42 is fixed with a trimming positioning block 43. The inner side of the trimming positioning block 43 is provided with a trimming positioning groove 431 that is designed to imitate the outer side surface of the blank 101. The top plate 2 is fixed with a trimming upper template 44, a trimming upper support block 45, and a trimming pressing plate 46 in sequence. The trimming upper template 44 is fixed with a trimming cutter 47. The trimming cutter 47 can at least partially extend and be placed in the cutter groove 48 of the trimming support plate 42. In the above, the trimming positioning block 43 can limit the axial movement of the blank 101 to prevent displacement or movement during the trimming process and ensure the accuracy of the trimming. When the top plate 2 moves downward, the trimming cutter 47 can be extended and placed in the cutter groove 48 to complete the trimming of the yoke head 102 .

[0031] like Figure 9 As shown, the pressing assembly 5 at least includes a pressing lower template 51 fixed on the bottom plate 1 and a pressing support block 52 fixed on the pressing lower template 51. Pressing positioning blocks 54 are provided on both sides of the pressing support block 52. The inner side of the pressing positioning block 54 is provided with a pressing positioning groove 541 that is designed to imitate the outer side surface of the blank 101. The top of the pressing support block 52 is provided with an arc-shaped pressing groove 53. A pressing upper template 59 is fixed on the top plate 2. A pressing plate 55 is fixed on the pressing upper template 59. A force block 56 is fixed on the pressing plate 55. A force applying head 57 that matches the pressing groove 53 is provided at the bottom of the force applying block 56. In the above, the pressing positioning block 54 can limit the axial movement of the blank 101, avoiding displacement or movement in the process of pressing the horizontal surface of the yoke head 102 into an arcuate surface, thereby improving the accuracy of pressing. When the top plate 2 moves downward, the force-applying pressure head 57 can press the horizontal surface of the yoke head 102 into an arc-shaped surface, which is simple and convenient to operate.

[0032] like Figure 10As shown, the stamping assembly 6 at least includes a stamping lower template 61 fixed on the bottom plate 1, and the stamping lower template 61 has a built-in stamping block 62. Stamping positioning blocks 63 are fixed on both sides of the stamping block 62. The inner side of the stamping positioning block 63 is provided with a stamping positioning groove 631 that is designed to imitate the outer side surface of the blank 101. The stamping block 62 is provided with a stamping groove 64 that is compatible with the bottom 104. A stamping upper template 65 and a stamping support plate 66 are fixed on the top plate 2, and a stamping head 67 is fixed on the stamping support plate 66. In the above, the stamping positioning block 63 can limit the axial movement of the blank 101 to avoid displacement or movement of the U-shaped yoke blank 103 during stamping, thereby improving the accuracy of pressing. When the top plate 2 moves downward, the punching head 67 can drive the blank 101 to move downward until it is punched into a U-shaped yoke blank 103 by the punching groove, thereby greatly improving work efficiency.

[0033] In the above, the structures of the trimming assembly 4, pressing assembly 5 and punching assembly 6 of the yoke automatic processing and forming device are similar to those of the prior art and are not the protection points of the present invention. Therefore, the present invention will not go into details here.

[0034] like Figure 11 and 12 As shown, the punching assembly 7 at least includes a punching lower template 71 fixed on the bottom plate 1 and a punching lower support plate 72 provided on the punching lower template 71. A punching block 73 is fixed on the punching lower support plate 72. Punching positioning blocks 74 are provided on both sides of the punching block 73. The inner side of the punching positioning block 74 is provided with a punching positioning groove 75 that matches the outer contour of the yoke blank 103. A punching upper template 76, a punching upper support plate 77 and a punching fixing plate 78 are fixed on the top plate 2. A punching head 79 is fixed on the punching upper support plate 77. The punching head 79 passes through the punching fixing plate 78 and can be extended and placed in the punching block 73. In the above, the punching positioning block 74 can limit the axial movement of the yoke blank 103 to avoid displacement or movement during the punching process and improve the accuracy of the punching. When the top plate 2 moves downward, the punching head extends and is placed in the punching block 73 to complete the punching. The operation is simple and convenient, and the work efficiency is greatly improved.

[0035] like Figure 4 and 5As shown, the chamfering assembly 8 comprises at least a chamfering lower die 81 fixed to the bottom plate 1. The chamfering lower die 81 is provided with a chamfer receiving groove, which houses a chamfering support block 82. The chamfering support block 82 is provided with a chamfering contoured groove 821 that is contoured to the bottom 104. A chamfer receiving groove 822 is provided in the middle of the chamfering support block 82, which houses a matching chamfering block 83. The chamfering block 83 is provided with a chamfering groove 831, and a plug hole 832 is provided at the center of the chamfering groove 831. The plug hole 832 is surrounded by upwardly protruding retaining rings 833. A chamfering upper die 84 is fixed to the top plate 2. A chamfering insert rod 87 is fixed to the chamfering upper die 84. The bottom of the chamfering insert rod 87 is truncated and can be inserted into the plug hole 832. In the above description, the chamfering support block 82 and the chamfering positioning block 86 can limit the axial movement of the bottom 104 to avoid displacement or movement during the chamfering process, thereby improving the accuracy of punching.

[0036] After the punching assembly 7 punches the bottom plate, since the punching head 79 punches the bottom 104 vertically downward, after the punching is completed, the material texture of the bottom 104 located around the punching hole 105 is vertically downward. At this time, if the hole is punched directly through the punching process, the hole is prone to cracking, which seriously affects the yield rate.

[0037] In the present invention, since the retaining ring 833 is upwardly protruding, when the bottom 104 is chamfered, the setting of the retaining ring 833 can change the texture direction of the bottom, so that the radial texture direction of the bottom is changed from a vertically downward texture direction to an axial texture direction, a horizontal or inclined texture direction, thereby reducing the material flow trend during the hole drawing process, reducing the fracture during the processing and forming process, improving the quality of the product, and reducing the production cost by reducing the defective rate.

[0038] The chamfering lower die 81 at least comprises a chamfering lower template 811 fixed on the base plate 1 and a chamfering lower support plate 812 provided on the chamfering lower template 811. The chamfering lower support plate 812 is provided with the chamfering receiving groove. A chamfering pivot block 85 is provided in the chamfering receiving groove. The chamfering pivot block 85 is located at both ends of the chamfering support block 82. The chamfering pivot block 85 is provided with a chamfering pressing block 851 via a pin pivot. A chamfering pressing head 852 is fixed on the inner side of the chamfering pressing block 851. The chamfering pressing head 852 can be pressed on the upper surface of the bottom 104. The chamfering support block 82 is provided with a chamfering opening 853. The chamfering opening 853 has a chamfering spring 854 built therein. The chamfering spring 854 can abut against the chamfering pressing head 852. The chamfering support block 82 is also provided with chamfering positioning blocks 86 fixed on the chamfering lower support plate 812 on both sides. The chamfering positioning blocks 86 are provided with chamfering positioning grooves 861 adapted to the outer wall of the yoke head 102 on the yoke blank 103. The chamfering upper die 84 at least comprises a chamfering upper template 841 fixed on the top plate 2 and a chamfering upper support plate 842 fixed on the chamfering upper template 841. The chamfering upper template 842 is fixed with a chamfering fixing plate 843. The chamfering fixing plate 843 is fixed with a chamfering fixing block 844. The chamfering fixing block 844 can press on the chamfering pressing head 852. The chamfering insert 87 is fixed on the chamfering fixing block 844. This design is ingenious. The chamfer pressing head 852 presses against the upper surface of the base 104, limiting the axial and radial movement of the base 104, preventing displacement or movement during the chamfering process and improving chamfer accuracy. Furthermore, the chamfer spring 854 resets the chamfer pressing head 852, ensuring convenience during subsequent work and greatly improving work efficiency.

[0039] like Figure 13 and 14 As shown, the hole extraction assembly 9 at least includes a hole extraction lower template 91 and a hole extraction lower support plate 911 fixed on the bottom plate 1. The hole extraction lower support plate 911 is fixed with a hole extraction carrier 92. The hole extraction carrier 92 is provided with a hole extraction profiling groove 921 that is designed to imitate the bottom 104. A socket 922 is provided at the center of the hole extraction profiling groove 921. The top plate 2 is fixed with a hole extraction upper template 93, a hole extraction upper support plate 931 and a hole extraction fixing plate 932. The hole extraction upper support plate 931 is fixed with a hole extraction rod 94 that is compatible with the socket 922. The hole extraction rod 94 can pass through the hole extraction fixing plate 932 and be inserted into the socket 922. The hole extraction carrier 92 can limit the axial movement of the bottom 104 to avoid displacement or movement during the chamfering process, thereby improving the accuracy of the hole extraction. In addition, the extraction hole insertion rod 94 is inserted into the insertion hole 922 to limit the position of the extraction hole and improve accuracy.

[0040] The two ends of the extraction hole carrier block 92 are fixed with extraction hole pivot blocks 95. The extraction hole pivot blocks 95 are provided with extraction hole pressing blocks 951 through a pin pivot. The inner side of the extraction hole pressing block 951 is fixed with an extraction hole pressing head 952. The extraction hole pressing head 952 can press on the upper surface of the bottom 104. The extraction hole lower support plate 911 is provided with an extraction hole opening 953. The extraction hole opening 953 has an extraction hole spring 954 built in. The extraction hole spring 954 can abut against the lower surface of the extraction hole pressing head 952. The extraction hole fixing plate 932 is fixed with an extraction hole fixing block 955. The lower surface of the extraction hole fixing block 955 can abut against the upper surface of the extraction hole pressing head 952. The hole-drawing pressing head 952 presses against the upper surface of the base 104, limiting the axial and radial movement of the base 104, preventing displacement or movement during the hole-drawing process and improving hole-drawing accuracy. Furthermore, the hole-drawing spring 954 resets the hole-drawing pressing head 952, ensuring convenience during subsequent work and greatly improving work efficiency.

[0041] The working process of the present invention is briefly described below: Driven by the hydraulic cylinder, the top plate 2 moves toward the bottom plate 1. During the movement, the blanking assembly 3, trimming assembly 4, pressing assembly 5, stamping assembly 6, punching assembly 7, chamfering assembly 8 and punching assembly 9 respectively complete the processing of the profile.

[0042] Specifically, in the punching assembly 3, when the profile 100 moves in the slide groove 315 on the punching upper support plate 313, the top plate 2 drives the punching plate 316 to move downward, and the profile 100 is punched into a blank 101 by the punching knife. The blank 101 falls into the slide groove 315 on the punching lower support plate 311. At this time, the pushing cylinder 33 is driven to push the blank 101 into the supporting plate 35 through the push plate 34.

[0043] In the trimming assembly 4, when the top plate 2 drives the trimming upper plate 44 downward, the trimming cutter 47 can extend and be placed in the cutter groove 48, completing the trimming of the yoke head 102. In the pressing assembly 5, when the top plate 2 drives the pressing upper plate 59 downward, the force-applying ram 57 can press the horizontal surface of the yoke head 102 into an arcuate surface. In the stamping assembly 6, when the top plate 2 drives the stamping upper plate 65 downward, the stamping ram 67 can drive the blank 101 downward until it is punched into a U-shaped yoke blank 103 by the stamping groove.

[0044] In the punching assembly 7, the punching positioning block 74 limits the yoke blank 103. When the top plate 2 drives the punching upper template 76 to move downward, the punching head extends and is placed in the punching block 73 to complete the punching. After the punching is completed, the material texture direction of the bottom 104 located around the punching is vertically downward.

[0045] In the chamfering assembly 8, the chamfering support block 82 and chamfering positioning block 86 axially limit the bottom 104. The chamfering pressing head 852 presses against the upper surface of the bottom 104, limiting the axial and radial movement of the bottom 104. Simultaneously, when the chamfering upper template 841 is driven by the top plate, the chamfering insert 87 is inserted into the insert hole 832, completing the chamfering of the bottom 104. During this process, the upward protrusion of the retaining ring 833 changes the grain direction of the bottom, changing the radial grain direction of the bottom to the axial grain direction.

[0046] In the hole-drawing assembly 9, the hole-drawing pressing head 952 limits the bottom 104. At the same time, when the top plate drives the hole-drawing upper template 93 to move downward, the hole-drawing rod 94 is inserted into the socket 922 to limit the hole-drawing position and complete the hole-drawing on the bottom plate 104.

[0047] In addition, the manipulator or step-by-step transport component arranged on one side of the base plate 1 can transport the profile on the corresponding component to the adjacent component, thereby realizing fully automatic transport.

[0048] It should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation method can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0049] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automatic yoke forming device, comprising a base plate (1), characterized in that: A top plate (2) that can move up and down relatively is provided just above the bottom plate (1), and along the central axis direction of the bottom plate (1), a punching assembly (3) for punching the profile (100) into a blank (101), a trimming assembly (4) for trimming the yoke heads (102) at both ends of the blank (101), a pressing assembly (5) for pressing the horizontal surface of the yoke heads (102) into an arcuate surface, a punching assembly (6) for punching the blank (101) into a U-shaped yoke blank (103), a punching assembly (7) for punching a bottom (104) on the yoke blank (103), a chamfering assembly (8) for chamfering the punched hole (105) on the bottom (104), and a punching assembly (9) for punching a hole in the bottom (104); The chamfering assembly (8) comprises at least a chamfering lower die (81) fixed on the bottom plate (1); a chamfering receiving groove is provided on the chamfering lower die (81); a chamfering support block (82) is built into the chamfering receiving groove; a chamfering profile groove (821) is provided on the chamfering support block (82) and is designed to imitate the bottom (104); a chamfering receiving groove (822) is provided in the middle of the chamfering support block (82); a chamfering receiving groove (822) is built into the chamfering receiving groove (822) adapted thereto; A chamfering block (83) is provided on the chamfering block (83), a plug hole (832) is provided at the center of the chamfering groove (831), and upwardly protruding snap rings (833) are provided around the plug hole (832); a chamfering upper die (84) is fixedly provided on the top plate (2), a chamfering insert rod (87) is fixedly provided on the chamfering upper die (84), and the bottom of the chamfering insert rod (87) is truncated and can be inserted into the plug hole (832).

2. The fully automatic yoke forming device according to claim 1, characterized in that: The chamfering lower die (81) at least comprises a chamfering lower template (811) fixed on the bottom plate (1) and a chamfering lower support plate (812) arranged on the chamfering lower template (811), the chamfering lower support plate (812) being provided with the chamfering receiving groove; a chamfering pivot block (85) being provided in the chamfering receiving groove, the chamfering pivot block (85) being located at both ends of the chamfering support block (82), a chamfering pressing block (851) being provided on the chamfering pivot block (855) through a latch pivot, a chamfering pressing head (852) being fixed on the inner side of the chamfering pressing block (851), the chamfering pressing head (852) being pressable on the upper surface of the bottom (104), a chamfering opening (853) being provided on the chamfering support block (82), a chamfering spring (854) being built in the chamfering opening (853), the chamfering spring (854) being capable of engaging with the bottom plate (104), and a chamfering opening (853) being capable of engaging with the bottom plate (104). The chamfering pressing head (852) abuts against the chamfering pressing head (852); chamfering positioning blocks (86) fixed on the chamfering lower support plate (812) are also provided on both sides of the chamfering support block (82), and the chamfering positioning blocks (86) are provided with chamfering positioning grooves (861) adapted to the outer wall of the yoke head (102) on the yoke blank (103); the chamfering upper die (84) at least includes a chamfering upper template (841) fixed on the top plate (2) and a chamfering upper support plate (842) fixed on the chamfering upper template (841), a chamfering fixing plate (843) fixed on the chamfering upper template (842), a chamfering fixing block (844) fixed on the chamfering fixing plate (843), the chamfering fixing block (844) can press on the chamfering pressing head (852), and the chamfering insert rod (87) is fixed on the chamfering fixing block (844).

3. The fully automatic yoke forming device according to claim 1, characterized in that: The blanking assembly (3) at least comprises a support block (31) fixed on the bottom plate (1), a blanking lower support plate (311), a blanking lower support block (312), a blanking upper support plate (313) and a blanking upper support block (314) fixed in sequence on the support block (31), a slide groove (315) is provided on the blanking lower support plate (311) and the blanking upper support plate (313), and a height of the slide groove (315) is greater than or equal to the height of the profile (100); a blanking plate (316) is fixed on the top plate (2), a blanking knife (317) is fixed on the blanking plate (316), and a blanking hole (318) adapted to the blanking knife (317) is provided on the blanking lower support plate (311), the blanking lower support block (312), the blanking upper support plate (313) and the blanking upper support block (314).

4. The fully automatic yoke forming device according to claim 3, characterized in that: A support plate (32) is provided on one side of the support block (31), a push cylinder (33) is fixed on the support plate (32), a push plate (34) is fixed on the cylinder shaft of the push cylinder (33), and the push plate (34) is located in the slide groove (315) of the punching lower support plate (311); a bearing plate (35) is provided on the other side of the support block (31).

5. The fully automatic yoke forming device according to claim 1, characterized in that: The trimming assembly (4) at least comprises a trimming lower template (41) fixed on the bottom plate (1) and a trimming supporting plate (42) fixed on the trimming lower template (41), a trimming positioning block (43) fixed on the trimming supporting plate (42), and a trimming positioning groove (431) having a shape similar to the outer side surface of the blank (101) is provided on the inner side of the trimming positioning block (43); a trimming upper template (44), a trimming upper support block (45) and a trimming pressing plate (46) are fixed on the top plate (2) in sequence, a trimming cutter (47) fixed on the trimming upper template (44), and the trimming cutter (47) can be at least partially extended and placed in the cutter groove (48) of the trimming supporting plate (42).

6. The fully automatic yoke forming device according to claim 1, characterized in that: The pressing assembly (5) comprises at least a pressing lower template (51) fixed on the bottom plate (1) and a pressing support block (52) fixed on the pressing lower template (51), pressing positioning blocks (54) are provided on both sides of the pressing support block (52), a pressing positioning groove (541) having a shape-matching design with the outer side surface of the blank (101) is provided on the inner side of the pressing positioning block (54), and an arc-shaped pressing groove (53) is provided on the top of the pressing support block (52); a pressing upper template (59) is fixed on the top plate (2), a pressing plate (55) is fixed on the pressing upper template (59), a force block (56) is fixed on the pressing plate (55), and a force pressure head (57) adapted to the pressing groove (53) is provided at the bottom of the force block (56).

7. The fully automatic yoke forming device according to claim 1, characterized in that: The stamping assembly (6) at least comprises a stamping lower template (61) fixed on the bottom plate (1), a stamping block (62) is built into the stamping lower template (61), stamping positioning blocks (63) are fixed on both sides of the stamping block (62), a stamping positioning groove (631) with a shape-matching design to the outer side surface of the blank (101) is provided on the inner side of the stamping positioning block (63), and a stamping groove (64) adapted to the bottom (104) is provided on the stamping block (62); a stamping upper template (65) and a stamping support plate (66) are fixed on the top plate (2), and a stamping pressure head (67) is fixed on the stamping support plate (66).

8. The fully automatic yoke forming device according to claim 1, characterized in that: The punching assembly (7) at least comprises a punching lower template (71) fixed on the bottom plate (1) and a punching lower support plate (72) arranged on the punching lower template (71); a punching block (73) is fixed on the punching lower support plate (72); punching positioning blocks (74) are provided on both sides of the punching block (73); a punching positioning groove (75) adapted to the outer contour of the yoke blank (103) is provided on the inner side of the punching positioning block (74); a punching upper template (76), a punching upper support plate (77) and a punching fixing plate (78) are fixed on the top plate (2); a punching head (79) is fixed on the punching upper support plate (77); the punching head (79) passes through the punching fixing plate (78) and can be extended and placed in the punching block (73).

9. The fully automatic yoke forming device according to claim 1, characterized in that: The extraction hole assembly (9) comprises at least an extraction hole lower template (91) and an extraction hole lower support plate (911) fixed on the bottom plate (1); a extraction hole carrier (92) is fixed on the extraction hole lower support plate (911); a extraction hole profiling groove (921) having a profiling design similar to the bottom (104) is provided on the extraction hole carrier (92); an insertion hole (922) is provided at the center of the extraction hole profiling groove (921); an extraction hole upper template (93), an extraction hole upper support plate (931) and an extraction hole fixing plate (932) are fixed on the top plate (2); an extraction hole insertion rod (94) adapted to the insertion hole (922) is fixed on the extraction hole upper support plate (931); the extraction hole insertion rod (94) can pass through the extraction hole fixing plate (932) and be inserted into the insertion hole (922).

10. The fully automatic yoke forming device according to claim 9, characterized in that: Both ends of the extraction hole carrier block (92) are fixedly provided with extraction hole pivot blocks (95), and the extraction hole pivot block (95) is provided with an extraction hole pressing block (951) through a pin pivot, and the inner side of the extraction hole pressing block (951) is fixedly provided with an extraction hole pressing head (952), and the extraction hole pressing head (952) can be pressed on the upper surface of the bottom (104), and the extraction hole lower support plate (911) is provided with an extraction hole opening (953), and the extraction hole opening (953) is provided with an extraction hole spring (954), and the extraction hole spring (954) can abut against the lower surface of the extraction hole pressing head (952); the extraction hole fixing plate (932) is fixedly provided with an extraction hole fixing block (955), and the lower surface of the extraction hole fixing block (955) can abut against the upper surface of the extraction hole pressing head (952).

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