A semi-cutting and protruding tool for round pipes

Abstract

This invention provides a tooling for semi-shearing and embossing round tubes, which integrates two sets of molds, eliminating the need for semi-finished product turnover and requiring only one punch press for production, thus reducing manpower and material resources and alleviating the problem of machine shortage on the stamping site. The same punch press integrates a first semi-shearing station and a second embossing station. The second embossing station is equipped with a semi-shearing embossing detection mechanism. When the round tube is inserted into the first semi-shearing station, the sensor at the first semi-shearing station detects that the tube is in place, and the punch press begins to press down, semi-shearing the product. After the punch press opens the mold, the semi-sheared product is manually removed and rotated 180° along the axis of the round tube, aligning it with the insertion direction of the first semi-shearing station, and then inserted into the second embossing station. Simultaneously, another incoming round tube is inserted into the first semi-shearing station, and the punch press is started, performing semi-shearing and embossing on both products simultaneously. The embossed product is then removed and placed in a finished product box, and the product from the first semi-shearing station is placed into the second embossing station.

Description

Technical Field

[0001] This invention relates to the technical field of round tube processing, specifically a tool for semi-shearing and protruding round tubes. Background Technology

[0002] There is a requirement for a round tube to be partially sheared and embossed from the inside out (see...). Figure 1 The requirements stipulate that the fracture surface must be 100% bright and the variation in the inner and outer diameters of the formed round tube must not exceed 0 to +0.1 mm. Existing technology requires the fabrication of two simple single-punch dies, occupying two punch presses. Furthermore, production necessitates transfer to the next process, which is time-consuming, labor-intensive, and occupies additional machine space. Additionally, the shearing and embossing of the round tube are directional, making it easy for operators to reverse the direction during transfer to the next station, leading to product scrap. Moreover, the bright surface and inner and outer diameters of the produced round tubes cannot be guaranteed, requiring rework with CNC precision repair of the fracture surface and reshaping of the inner and outer diameters to barely meet delivery standards. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a tooling for semi-shearing and embossing round tubes, which integrates two sets of molds, eliminates the need for semi-finished product turnover, and requires only one punch press for production, thereby reducing manpower and material resources and alleviating the problem of machine shortage on the stamping site.

[0004] A round tube half-shearing and embossing fixture is characterized by: a first half-shearing station and a second embossing station integrated on the same punch press; the second embossing station is equipped with a half-shearing embossing detection mechanism for detecting half-shearing embossing; when the round tube is inserted into the first half-shearing station, the sensor at the first half-shearing station senses that the round tube has been inserted into place, and the punch press begins to press down to half-shear the product; after the punch press opens the mold, the half-sheared product is manually taken out and rotated 180° along the axis of the round tube, and inserted into the second embossing station in the same direction as the insertion of the first half-shearing station; at the same time, another incoming round tube is taken out and inserted into the first half-shearing station, and the punch press is started, and the punch press simultaneously half-shears and embosses the two products; the embossed product is taken out and placed in the finished product box, and the product from the first half-shearing station is placed into the second embossing station, and the above operation is repeated for continuous operation.

[0005] Its further features are: It includes an upper mold assembly, a lower mold assembly, and two sets of material-stopping mechanisms; the upper mold assembly includes an upper mold base, a half-shear upper template, a half-shear upper mold forming assembly, a embossing upper template, and an embossing upper mold forming assembly; the lower mold assembly includes a lower mold base, a half-shear bottom pad, a half-shear inner cavity lower assembly, a half-shear punch assembly, a half-shear station floating block, an embossing bottom pad, an embossing inner cavity lower assembly, an embossing punch assembly, an embossing station floating block, and a half-shear protrusion detection mechanism; each set of material-stopping mechanisms is driven by a cylinder and is used to stop the material inlet position at each station; The upper die base is fixedly equipped with a punch power assembly. The upper die base is sequentially fixed with a half-shear upper die plate and a embossing upper die plate along the material travel direction. The concave cavities of the half-shear upper die plate and the embossing upper die plate are both shaped like the upper semi-circular arc surface of a circular tube. The half-shear upper die plate is provided with a half-shear upper die forming assembly corresponding to the half-shear position area of ​​the product. The embossing upper die plate is provided with an embossing upper die forming assembly corresponding to the embossing position area of ​​the product. The upper surface of the lower mold base is respectively provided with a half-shear bottom pad and a embossing bottom pad. The half-shear station floating material block is supported by a spring on the half-shear bottom pad, and the upper part of the half-shear station floating material block forms a positioning cavity that conforms to the lower half of the circular tube. The embossing station floating material block is supported by a spring on the embossing bottom pad. The embossing station floating material block is provided with an inward concave clearance notch corresponding to the half-shear protrusion position, and the half-shear protrusion detection mechanism is used to detect the half-shear protrusion. The lower part assembly of the inner cavity of the semi-sheared circular tube includes a lower support member inside the semi-sheared cavity, a first external connector, and a first bottom support member. The first bottom support member is fixedly mounted on the bottom pad of the semi-sheared tube. The axial distal end of the first bottom support member relative to the circular tube is connected to the lower support member inside the semi-sheared cavity through the first external connector. A semi-sheared punch assembly is provided on the upper part of the lower support member inside the semi-sheared cavity. The semi-sheared punch assembly includes a first contour support block and a semi-sheared punch. The upper arc surface of the first contour support block is contoured to the central arc surface of the inner wall of the circular tube. The semi-sheared punch is located directly below the upper die forming assembly of the semi-sheared tube. The overall height of the lower support member inside the semi-sheared cavity and the first contour support block is less than the diameter of the circular tube by a difference of L, where L is the stroke of the upper die of the semi-sheared tube driving the floating block of the semi-shearing station downwards for semi-shearing. The lower part assembly of the inner cavity of the embossed round tube includes a lower support member inside the embossed cavity, a second external connector, and a second bottom support member. The second bottom support member is fixedly mounted on the bottom pad of the embossing. The axial distal end of the second bottom support member relative to the round tube is connected to the lower support member inside the embossed cavity through the second external connector. An embossing punch assembly is provided on the upper part of the lower support member inside the embossed cavity. The embossing punch assembly includes a second contour support block and an embossing punch. The upper arc surface of the second contour support block is contoured to the central arc surface of the inner wall of the round tube. The embossing punch is located directly below the upper embossing mold forming assembly. The overall height of the lower support member inside the embossed cavity and the second contour support block is less than the diameter of the round tube by a difference of M, where M is the stroke of the upper embossing mold that drives the floating block of the embossing station to perform a half-shear downward. M = L; The top outer ends of the first and second contour support blocks are each equipped with a sensor, which is used to detect whether the round tube is axially installed in place. The material-stopping mechanism includes a horizontally moving cylinder and a material-stopping block. The axial front ends of the lower support member in the half-shear cavity and the lower support member in the embossed cavity are respectively arranged to protrude outward from the cavity. The bottom of the front end of the lower support member in the half-shear cavity and the lower support member in the embossed cavity are respectively provided with a stop platform. After the round tube is fed, the corresponding material-stopping block is driven to fit against the stop platform by the movement of the horizontally moving cylinder, thereby completing the axial positioning of the round tube.

[0006] By adopting this invention, the tooling adopts a dual-station design, integrating two sets of molds together, eliminating the turnover of semi-finished products, and requiring only one punch press for production, reducing manpower and material resources while alleviating the problem of machine shortage on the stamping site; and by setting a half-shear protrusion detection mechanism for detecting half-shear protrusions on the second embossing station, the half-shear direction detection of the round tube is added, preventing the operator from placing the round tube in the wrong direction, resulting in the scrapping of the produced products. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the product processing flow of the present invention; Figure 2 This is a three-dimensional structural diagram of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the main view structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram showing the arrangement of the two workstations in this invention; Figure 5 This is a cross-sectional schematic diagram of the first half-shearing station of the present invention; Figure 6 This is a cross-sectional schematic diagram of the second embossing station of the present invention; The names corresponding to the serial numbers in the diagram are as follows: 100mm round tube; 1. First half-shearing station; 2. Second convex-forming station; 3. Half-shear convex detection mechanism; 4. Sensor; 5. Spring; 6. Stop platform; Upper die assembly 10, upper die base 11, half-shear upper template 12, half-shear upper die forming assembly 13, embossing upper template 14, embossing upper die forming assembly 15, lower die assembly 20, lower die base 21, half-shear bottom pad 22, lower part assembly of the inner cavity of the half-shear round tube 23, lower part support of the inner cavity of the half-shear 231, first external connector 232, first bottom support 233, half-shear punch assembly 24, first contour support block 24 1. Half-shear punch component 242. Half-shear station floating block 25. Embossing bottom pad block 26. Embossing round tube inner cavity lower assembly 27. Embossing cavity inner lower support component 271. Second external connector 272. Second bottom support component 273. Embossing punch assembly 28. Second contour support block 281. Embossing punch component 282. Embossing station floating block 29. Material blocking mechanism 30. Horizontal moving cylinder 31. Material blocking block 32. Detailed Implementation

[0008] A type of tooling for semi-shearing and protruding round pipes, see Figures 1-6 The same punch press integrates a first half-shearing station 1 and a second embossing station 2. The second embossing station 2 is equipped with a half-shearing protrusion detection mechanism 3 for detecting the half-shearing protrusion. When the round tube 100 is inserted into the first half-shearing station 1, the sensor 4 of the first half-shearing station 1 senses that the round tube 100 has been inserted into place, and the punch press begins to press down to half-shear the product. After the punch press opens the mold, the half-sheared product is manually taken out and rotated 180° along the axis of the round tube 100, and inserted into the second embossing station 2 in the same direction as the insertion of the first half-shearing station 1. At the same time, another incoming round tube 100 is taken out and inserted into the first half-shearing station 1. The punch press is started, and the punch press performs half-shearing and embossing on the two products simultaneously. The embossed product is taken out and placed in the finished product box. The product from the first half-shearing station is placed into the second embossing station, and the above operation is repeated for continuous operation.

[0009] In a specific embodiment, a tooling for partially shearing and protruding a round tube is shown below. Figures 1-6 It includes an upper mold assembly 10, a lower mold assembly 20, and two sets of material blocking mechanisms 30; the upper mold assembly 10 includes an upper mold base 11, a half-shear upper template 12, a half-shear upper mold forming assembly 13, a embossing upper template 14, and an embossing upper mold forming assembly 15; the lower mold assembly 20 includes a lower mold base 21, a half-shear bottom pad block 22, a half-shear round tube inner cavity lower assembly 23, a half-shear punch assembly 24, a half-shear station floating block 25, an embossing bottom pad block 26, an embossing round tube inner cavity lower assembly 27, an embossing punch assembly 28, an embossing station floating block 29, and a half-shear protrusion detection mechanism 3; each set of material blocking mechanisms 30 is driven by a cylinder and is used to stop the material inlet position of each station; The upper die base 11 is fixedly equipped with a punch power assembly. The upper die base 11 is sequentially fixed with a half-shear upper template 12 and a embossing upper template 14 along the material travel direction. The inner concave cavities of the half-shear upper template 12 and the embossing upper template 14 are both set in the shape of the upper semi-circular arc surface of the circular tube 100. The half-shear upper template 12 is provided with a half-shear upper die forming component 13 corresponding to the half-shear position area of ​​the product. The embossing upper template 14 is provided with an embossing upper die forming component 15 corresponding to the embossing position area of ​​the product. The upper surface of the lower mold base 21 is respectively provided with a half-shear bottom pad 22 and a embossing bottom pad 26. The half-shear station floating block 25 is supported by the half-shear bottom pad 22 by the spring 5, and the upper part of the half-shear station floating block 25 forms a positioning cavity that conforms to the lower half of the circular tube 100. The embossing station floating block 29 is supported by the embossing bottom pad 26 by the spring 5. The embossing station floating block 29 is provided with an inward concave clearance notch corresponding to the half-shear protrusion position, and the half-shear protrusion detection mechanism 3 is used to detect the half-shear protrusion. The lower cavity assembly 23 of the semi-sheared circular tube includes a lower cavity support 231, a first external connector 232, and a first bottom support 233. The first bottom support 233 is fixed to the bottom pad 22 of the semi-sheared tube. The axial distal end of the first bottom support 233 relative to the circular tube 100 is connected to the lower cavity support 231 of the semi-sheared tube via the first external connector 232. A semi-sheared punch assembly 24 is provided on the upper part of the lower cavity support 231 of the semi-sheared tube. 24 includes a first contour support block 241 and a half-shear punch 242. The upper arc surface of the first contour support block 241 is contoured to the central arc surface of the inner wall of the round tube 100. The half-shear punch 242 is arranged directly below the half-shear upper mold forming assembly 13. The overall height of the lower support member 231 and the first contour support block 241 in the half-shear cavity is less than the diameter of the round tube 100, and the difference is L. L is the stroke of the half-shear upper template 12 driving the half-shear station floating block 25 to perform half-shear downwards. The lower cavity assembly 27 of the embossed round tube includes a lower cavity support 271, a second external connector 272, and a second bottom support 273. The second bottom support 273 is fixed to the embossed bottom pad 26. The axial distal end of the second bottom support 273 relative to the round tube is connected to the lower cavity support 271 through the second external connector 272. An embossing punch assembly 28 is provided on the upper part of the lower cavity support 271. 8 includes a second contour support block 281 and a punch 282. The upper arc surface of the second contour support block 281 is contoured to the central arc surface of the inner wall of the round tube 100. The punch 282 is arranged directly below the upper die forming assembly 15. The overall height of the lower support 271 and the second contour support block 281 in the embossing cavity is less than the diameter of the round tube 100, and the difference is M. M is the stroke of the upper die forming assembly 14 driving the floating material block 29 of the embossing station to perform a half-shear downward. Since the convexity and partial shearing are performed simultaneously, M = L is obtained; The top outer ends of the first contour support block 241 and the second contour support block 281 are each equipped with a sensor 4, which is used to detect whether the round tube 100 is axially installed in place. The material blocking mechanism 30 includes a horizontal moving cylinder 31 and a material blocking block 32. The axial front ends of the lower support member 231 in the half-shear cavity and the lower support member 271 in the embossed cavity are respectively arranged to protrude outward from the cavity. The bottom of the front end of the lower support member 231 in the half-shear cavity and the lower support member 271 in the embossed cavity are respectively provided with a stop platform 6. After the round tube 100 is loaded, the corresponding material blocking block 32 is driven to fit against the stop platform 6 by the movement of the horizontal moving cylinder 31, thereby completing the axial positioning of the round tube 100.

[0010] In specific implementation, the half-shear punch 242 and the half-shear upper die forming assembly 13 form a half-shear module, and the embossing punch 282 and the embossing upper die forming assembly 15 form an embossing module. By improving the blade gap of the half-shear module and the embossing module and rounding the blades, the requirement of 100% bright band is achieved. Furthermore, since the upper arc surface of the first contour support block 241 is contoured to the central arc surface of the inner wall of the round tube 100 and the upper arc surface of the second contour support block 281 is contoured to the central arc surface of the inner wall of the round tube 100, a shaping function is added, so that the inner and outer diameter dimensions of the round tube can be controlled and adjusted during the half-shearing and embossing forming process.

[0011] In actual operation, the incoming round tube 100 is inserted into the first half-shear station 1 (the round tube can be inserted from either end, with no directional requirement). The sensor 4 at the corresponding position senses that the round tube is inserted into place. Press the punch press start button, and the horizontal moving cylinder 31 drives the stop block 32 to move. After it is in place, press the punch press start button again, and the punch press begins to press down to half-shear the product. After the punch press opens the mold, the horizontal moving cylinder 31 resets. Manually take out the half-sheared product and rotate it 180° along the axis of the round tube, keeping it consistent with the insertion direction of the first half-shear station, and insert it into the second embossing station 2 (otherwise, the half-shear embossing detection mechanism 3 cannot sense the half-shear feature and will not press down). Then take another incoming round tube 100 and insert it into the first half-shear station 1. Press the punch press button twice in succession. The two sets of horizontal moving cylinders 31 and the punch press move in sequence to emboss the product. After embossing, the product is taken out and placed in the finished product box. The product from one station is placed into the next station, and the above operation is repeated for continuous operation.

[0012] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0013] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A semi-piercing and coining tool for a round tube, characterized by: The same punch press integrates a first half-shearing station and a second embossing station. The second embossing station is equipped with a half-shearing protrusion detection mechanism for detecting the half-shearing protrusion. When a round tube is inserted into the first half-shearing station, the sensor at the first half-shearing station detects that the round tube has been inserted into place, and the punch press begins to press down to half-shear the product. After the punch press opens the mold, the half-sheared product is manually taken out and rotated 180° along the axis of the round tube, and inserted into the second embossing station in the same direction as the insertion of the first half-shearing station. At the same time, another incoming round tube is taken out and inserted into the first half-shearing station. The punch press is then started, and the punch press performs half-shearing and embossing on both products simultaneously. The embossed product is taken out and placed in the finished product box. The product from the first half-shearing station is placed into the second embossing station, and the above operation is repeated for continuous operation.

2. The semi-punching tool for a round pipe according to claim 1, characterized in that: It includes an upper mold assembly, a lower mold assembly, and two sets of material-stopping mechanisms; the upper mold assembly includes an upper mold base, a half-shear upper template, a half-shear upper mold forming assembly, a convex upper template, and a convex upper mold forming assembly; the lower mold assembly includes a lower mold base, a half-shear bottom pad, a half-shear inner cavity lower assembly, a half-shear punch assembly, a half-shear station floating block, a convex bottom pad, a convex inner cavity lower assembly, a convex punch assembly, a convex station floating block, and a half-shear convexity detection mechanism; each set of material-stopping mechanisms is driven by a cylinder and is used to stop the material inlet position at each station.

3. The semi-punching tool for a round pipe according to claim 2, characterized in that: The upper die base is fixedly equipped with a punch power assembly. The upper die base is sequentially fixed with a half-shear upper die plate and a embossing upper die plate along the material travel direction. The concave cavities of the half-shear upper die plate and the embossing upper die plate are both shaped like the upper semi-circular arc surface of a circular tube. The half-shear upper die plate is provided with a half-shear upper die forming assembly corresponding to the half-shear position area of ​​the product. The embossing upper die plate is provided with an embossing upper die forming assembly corresponding to the embossing position area of ​​the product.

4. The circular tube half-shearing and protrusion-making tool according to claim 3, characterized in that: The upper surface of the lower mold base is respectively provided with a half-shear bottom pad and a embossing bottom pad. The half-shear station floating material block is supported by a spring on the half-shear bottom pad, and the upper part of the half-shear station floating material block forms a positioning cavity that conforms to the lower half of the circular tube. The embossing station floating material block is supported by a spring on the embossing bottom pad. The embossing station floating material block is provided with an inward concave clearance notch corresponding to the half-shear protrusion position, and the half-shear protrusion detection mechanism is used to detect the half-shear protrusion.

5. The circular tube half-shearing and protrusion-making tool according to claim 4, characterized in that: The lower component of the semi-shear cylindrical tube cavity includes a lower support member inside the semi-shear cavity, a first external connector, and a first bottom support member. The first bottom support member is fixedly mounted on the bottom pad of the semi-shear tube. The axial distal end of the first bottom support member relative to the cylindrical tube is connected to the lower support member inside the semi-shear cavity through the first external connector. A semi-shear punch assembly is provided on the upper part of the lower support member inside the semi-shear cavity. The semi-shear punch assembly includes a first contour support block and a semi-shear punch. The upper arc surface of the first contour support block is contoured to the central arc surface of the inner wall of the cylindrical tube. The semi-shear punch is located directly below the upper die forming assembly of the semi-shear tube. The overall height of the lower support member inside the semi-shear cavity and the first contour support block is less than the diameter of the cylindrical tube by a difference of L, where L is the stroke of the upper die of the semi-shear tube driving the floating block of the semi-shear station downwards for semi-shearing.

6. The circular tube half-shearing and protrusion-making tool according to claim 5, characterized in that: The lower component of the inner cavity of the embossed round tube includes a lower support member inside the embossed cavity, a second external connector, and a second bottom support member. The second bottom support member is fixedly mounted on the bottom pad of the embossing. The axial distal end of the second bottom support member relative to the round tube is connected to the lower support member inside the embossed cavity through the second external connector. An embossing punch assembly is provided on the upper part of the lower support member inside the embossed cavity. The embossing punch assembly includes a second contour support block and an embossing punch. The upper arc surface of the second contour support block is contoured to the central arc surface of the inner wall of the round tube. The embossing punch is located directly below the upper embossing die forming assembly. The overall height of the lower support member inside the embossed cavity and the second contour support block is less than the diameter of the round tube by a difference of M, where M is the stroke of the upper embossing die that drives the floating block of the embossing station to perform a half-shear downward.

7. A circular tube half-shearing and protrusion-making tool according to claim 6, characterized in that: Each of the first and second contour support blocks has a sensor fixed to its top outer end. The sensor is used to detect whether the round tube is axially installed in place.

8. The tooling for semi-shearing and protruding a round tube according to claim 2, characterized in that: The material-stopping mechanism includes a horizontally moving cylinder and a material-stopping block. The axial front ends of the lower support member in the half-shear cavity and the lower support member in the embossed cavity are respectively arranged to protrude outward from the cavity. The bottom of the front end of the lower support member in the half-shear cavity and the lower support member in the embossed cavity are respectively provided with a stop platform. After the round tube is fed, the corresponding material-stopping block is driven to fit against the stop platform by the movement of the horizontally moving cylinder, thereby completing the axial positioning of the round tube.

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