Punching equipment for special-shaped nine-hole pipe

Abstract

The invention relates to the technical field of walking stick production equipment, in particular to special-shaped nine-hole pipe punching equipment which comprises a workbench, an aluminum pipe orienting device, a carrying device, a chamfering device, a control device and a punching device, and the aluminum pipe orienting device, the carrying device, the control device and the punching device are all installed on the workbench; the punching device comprises a linear guide rail B, a servo motor B, a sliding seat B, a positioning side punching mechanism and a punching mechanism. Traditional multi-station machining constraint is innovatively decoupled, positioning-side punching-vertical punching three-dimensional space synchronous operation is achieved, the side punch A and the side punch B punch each other in the horizontal direction while a positioning plug fixes the interior of a pipe, meanwhile, upper punching needles and lower punching needles in an upper die and a lower die in the punching mechanism are combined, and the punching efficiency is improved. Nine main holes and side holes are machined in one stroke. Traditional three procedures are compressed into one action, and procedure connection errors are eliminated in a breakthrough mode.

Description

Technical Field

[0001] The invention relates to the technical field of crutch production equipment, in particular to a punching device for a special-shaped nine-hole tube. Background Art

[0002] Currently, a cane is a walking aid, usually used to help people with limited mobility to walk.

[0003] The current punching process for crutch tubing requires transferring the tubing between multiple punching machines (first positioning → transferring to the side punching station → then transferring to the vertical punching station). Each transfer results in the loss of repeated positioning datums, and the accumulated tolerances lead to positional deviations between the nine holes and the side holes, resulting in a low pass rate for finished products. Furthermore, side punching and vertical punching must be performed in separate steps: first, the tubing is manually or robotically fixed to the side punching die to complete single-side punching; then, vertical punching is performed after re-clamping. This process switching and idle time account for a high proportion of the total process time, and traditional fixtures rely solely on external clamping of the tubing wall, making radial slippage or twisting of the tubing a risk during vertical punching.

[0004] Therefore, a punching device for special-shaped nine-hole pipe is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] The present invention aims to provide a punching machine for irregularly shaped nine-hole pipes. By innovatively decoupling the constraints of traditional multi-station processing, the invention achieves three-dimensional simultaneous operations: positioning, side punching, and vertical punching. While the positioning plug secures the interior of the pipe, side punches A and B punch horizontally against each other. Combined with the upper and lower punches in the upper and lower dies of the punching mechanism, a single stroke completes the processing of nine main holes and side holes. This compresses the traditional three-step process into a single action, significantly eliminating process connection errors.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: a punching device for special-shaped nine-hole tubes, including a workbench, an aluminum tube orienting device, a conveying device, a chamfering device, a control device and a punching device, wherein the aluminum tube orienting device, the conveying device, the control device and the punching device are all installed on the workbench, and the punching device includes a linear guide rail B, a servo motor B, a slide B, a positioning side punch mechanism and a punching mechanism;

[0007] The linear guide rail B is fixedly mounted on the workbench, the servo motor B is connected to one side of the linear guide rail B, the slide B is slidably connected to the linear guide rail, and a positioning side punch mechanism is installed on the slide B;

[0008] The positioning side punch mechanism includes a cylinder A, a push rod, a positioning seat and a push frame. The positioning seat is fixedly connected to the slide B. The cylinder A is fixedly connected to one side of the positioning seat. The output end of the cylinder A and the push rod are mutually driven and connected. The push frame is arranged on the positioning seat. A positioning plug and a side punch assembly for positioning and plugging the pipe are installed on the push frame.

[0009] The punching mechanism is arranged on one side of the positioning side punching mechanism, and the punching mechanism is used to punch holes on the top and bottom of the pipe at the same time.

[0010] Furthermore, the side push assembly includes a side push block and a middle push block. The side push blocks are respectively fixedly connected to the left and right sides of the push frame, and the middle push block is fixedly connected at the middle position of the push frame. A side push block A is provided on one side of the side push block, and side push blocks B are respectively provided on the left and right sides of the middle push block.

[0011] Furthermore, a side punch A is installed on the side punch block A, and a side punch B is installed on the side punch block B. The side punch A and the side punch B are respectively arranged on the left and right sides of the positioning plug, and the side punch A and the side punch B are arranged relative to each other.

[0012] Furthermore, the stamping mechanism includes a lower die frame and an upper die frame, the lower die frame is fixedly installed on the workbench, a lower die base is provided on the lower die frame, an upper die base is provided above the lower die base, an oil cylinder B is installed at the bottom of the lower die frame, the output end of the oil cylinder B is driven and connected to a push rod, and the push rod and the bottom of the lower die base are interconnected; an upper die frame is provided above the lower die frame, an oil cylinder C is installed on the upper die frame, and the output end of the oil cylinder is driven and connected to a pressure rod, and the pressure rod and the upper die base are interconnected.

[0013] Furthermore, the lower die base is provided with an arc-shaped groove for placing the pipe, and multiple lower punches are installed in the arc-shaped groove. Multiple upper punches are installed at the bottom of the upper die base, and the positions of the upper punches and the lower punches correspond to each other.

[0014] Furthermore, the chamfering device includes a linear guide rail A, a servo motor A, a slide A, a chamfering machine and a supporting bracket. The linear guide rail A and the supporting bracket are fixedly connected to the workbench. A servo motor A is installed on one side of the linear guide rail A. The slide A is slidably connected to the linear guide rail A, and the chamfering machine is fixedly connected to the slide A.

[0015] Furthermore, the transport device includes a transport frame, which is fixedly connected to the workbench and has a plurality of pneumatic clamps installed on the transport frame for clamping and transporting pipes.

[0016] Furthermore, a blanking slide for receiving pipe materials is provided on one side of the punching device, and the blanking slide is fixedly connected to the workbench.

[0017] The advantages of the present invention are: the present invention provides a punching device for special-shaped nine-hole pipes, which has the following technical effects:

[0018] This invention innovatively decouples the constraints of traditional multi-station machining to achieve simultaneous three-dimensional operations: positioning, side punching, and vertical punching. While the plug is positioned to secure the interior of the pipe, side punches A and B punch horizontally against each other. Combined with the upper and lower punches in the upper and lower dies of the punching mechanism, a single stroke completes the processing of nine main holes and side holes. This condenses the traditional three-step process (positioning followed by two separate punching operations) into a single operation, significantly eliminating process transition errors.

[0019] The push frame of the present invention can transmit lateral impact force when driven by the oil cylinder A, and can also provide positioning for the pipe through the positioning plug, ensuring zero displacement drift of the pipe during the stamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 This is an enlarged structural diagram of the punching mechanism and the positioning side punching mechanism in the present invention. Figure 1 .

[0023] Figure 3 This is an enlarged structural diagram of the punching mechanism and the positioning side punching mechanism in the present invention. Figure 2 .

[0024] Figure 4 This is an enlarged structural diagram of the punching mechanism and the positioning side punching mechanism in the present invention. Figure 3 .

[0025] Figure 5 It is an enlarged structural diagram of the positioning side punch mechanism in the present invention.

[0026] Figure 6 It is an enlarged structural schematic diagram of the chamfering device in the present invention.

[0027] Figure 7 Schematic diagram of the pipe obtained after processing.

[0028] in:

[0029] 1. Automatic feeding device; 2. Aluminum tube orientation device; 3. Workbench;

[0030] 4. Transport rack; 401. Pneumatic gripper; 5. Chamfering device;

[0031] 501, linear guide rail A; 502, servo motor A; 503, slide A;

[0032] 504. Chamfering machine; 506. Support frame; 6. Control device;

[0033] 7. Punching device; 701. Linear guide rail B; 702. Servo motor B;

[0034] 703, slide B; 704, positioning side punch mechanism; 7041, cylinder A;

[0035] 7042, push rod; 7043, positioning seat; 7044, push frame;

[0036] 70441, middle push block; 704412, side push block; 7045, positioning plug;

[0037] 7046, side punch block A; 70461, side punch head A; 7047, side punch block B;

[0038] 70471, side punch B; 705, lower die frame; 706, cylinder B;

[0039] 707, ejector pin; 708, lower die base; 7081, arc-shaped groove;

[0040] 7082, upper punch; 709, upper die holder; 7091, lower punch;

[0041] 710, upper mold frame; 711, oil cylinder C; 712, pressure rod;

[0042] 713. Support rod; 8. Blanking slide; 9. Pipe. DETAILED DESCRIPTION

[0043] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. The terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the internal parts of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Example 1:

[0046] Figure 1 is a schematic diagram of the three-dimensional structure of the present invention, Figure 2 This is an enlarged structural diagram of the punching mechanism and the positioning side punching mechanism in the present invention. Figure 1 , Figure 3 This is an enlarged structural diagram of the punching mechanism and the positioning side punching mechanism in the present invention. Figure 2 , Figure 4 This is an enlarged structural diagram of the punching mechanism and the positioning side punching mechanism in the present invention. Figure 3 , Figure 5 This is an enlarged structural diagram of the positioning side punch mechanism in the present invention. Figure 6 This is an enlarged structural diagram of the chamfering device in the present invention. Figure 7 Schematic diagram of the pipe obtained after processing, as shown in Figures 1 to 7 The punching equipment for a special-shaped nine-hole tube shown in the figure includes a workbench 3, an aluminum tube orienting device 2, a conveying device, a chamfering device 5, a control device 6 and a punching device 7. The aluminum tube orienting device 2, the conveying device, the control device 6 and the punching device 7 are all installed on the workbench 3. A blanking slide 8 for receiving the tube 9 is provided on one side of the punching device 7. The blanking slide 8 is fixedly connected to the workbench 3. The aluminum tube orienting device 2 can adjust the axial angle of the tube 9 to ensure that the ribbed aluminum tube enters the subsequent workstation in a preset direction. The punching device 7 in the present invention includes a linear guide B701, a servo motor B702, a slide B703, a positioning side punch mechanism 704 and a punching mechanism; the workbench 3 in the present invention serves as the supporting base of the entire machine, integrating the aluminum tube orienting, conveying, chamfering and punching devices 7 to ensure the spatial positioning accuracy of each workstation.

[0047] The conveying device in the present invention includes a conveying frame 4, which is fixedly connected to the workbench 3. A plurality of pneumatic clamps 401 for clamping and conveying pipes 9 are installed on the conveying frame 4. The pneumatic clamps 401 can grab the oriented aluminum pipes and transfer them to the chamfering station and the punching station in sequence.

[0048] The linear guide B701 in the present invention is fixedly installed on the workbench 3, the servo motor B702 is connected to one side of the linear guide B701, the slide B703 is slidably connected to the linear guide, and a positioning side punch mechanism 704 is installed on the slide B703; the positioning side punch mechanism 704 includes a cylinder A7041, a push rod 7042, a positioning seat 7043 and a push rack 7044, the positioning seat 7043 is fixedly connected to the slide B703, the cylinder A7041 is fixedly connected to one side of the positioning seat 7043, the output end of the cylinder A7041 and the push rod 7042 are mutually driven and connected, the push rack 7044 is set on the positioning seat 7043, and a positioning plug 7045 for positioning and plugging the pipe 9 is installed on the push rack 7044. And a side punch assembly; the side punch assembly includes a side push block 704412 and an intermediate push block 70441, the side push blocks 704412 are respectively fixedly connected to the left and right sides of the push frame 7044, the intermediate push block 70441 is fixedly connected at the middle position of the push frame 7044, a side punch block A7046 is provided on one side of the side push block 704412, and side punch blocks B7047 are respectively provided on the left and right sides of the intermediate push block 70441, a side punch A70461 is installed on the side punch block A7046, and a side punch B70471 is installed on the side punch block B7047, the side punch A70461 and the side punch B70471 are respectively arranged on the left and right sides of the positioning plug 7045, and the side punch A70461 and the side punch B70471 are arranged relative to each other. The oil cylinder A7041+push rod 7042 can provide horizontal thrust to drive the push frame 7044 to move as a whole. The positioning plug 7045 can be inserted into the inner hole of the pipe 9 to form a radial rigid support for the pipe 9 to prevent the pipe 9 from being displaced during punching. The side punch assembly in the present invention (including the side push block 704412, the middle push block 70441 + the side punch block A7046, and the side punch block B7047) can decompose the thrust of the cylinder A7041 into multi-directional horizontal impulses. When the push frame 7044 is driven by the cylinder A7041, the middle push block 70441 and the side push block 704412 move at the same time. The middle push block 70441 is inserted between the two side punch blocks B7047, pushing the side punch blocks B7047 apart to make the two side punch blocks B7047 move outward. At the same time, the side punch block A7046 is driven inward by the side push block 704412, and the left and right sides of the pipe 9 are punched by the side punch head A70461 and the side punch head B70471.

[0049] The punching mechanism of the present invention is arranged on one side of the positioning side punching mechanism 704, and the punching mechanism is used to punch the top and bottom of the pipe 9 at the same time. The punching mechanism includes a lower die frame 705 and an upper die frame 710. The lower die frame 705 is fixedly installed on the workbench 3. A lower die base 708 is provided on the lower die frame 705, and an upper die base 709 is provided above the lower die base 708. A cylinder B706 is installed at the bottom of the lower die frame 705, and the output end of the cylinder B706 is driven and connected to a push rod 707. The push rod 707 is connected to the bottom of the lower die base 708. The parts are interconnected; an upper mold frame 710 is arranged above the lower mold frame 705, and a cylinder C711 is installed on the upper mold frame 710. A pressure rod 712 is driven and connected to the output end of the cylinder. The pressure rod 712 is interconnected with the upper mold base 709. The present invention provides an arc-shaped groove 7081 for placing the pipe 9 on the lower mold base 708, and a plurality of lower punch needles 7091 are installed in the arc-shaped groove 7081. A plurality of upper punch needles 7082 are installed at the bottom of the upper mold base 709, and the positions of the upper punch needles 7082 and the lower punch needles 7091 correspond to each other. In the present invention, the arc-shaped groove 7081 of the lower die base 708 fits the outer contour of the pipe 9, and has a built-in lower punch needle 7091 (fixed); the cylinder C711 drives the pressure rod 712 to press down, thereby driving the upper die base 709 to move downward, thereby driving the upper punch needle 7082 to move vertically to punch the top of the pipe 9, and at the same time drives the upper die base 709 to move upward through the cylinder B706, and punches the bottom of the pipe 9 through the lower punch needle 7091. The present invention can be linked with the side punch while punching the pipe 9 up and down: the cylinder A7041, the cylinder B706 and the cylinder C711 are synchronously triggered by the control device 6, which can realize the three-dimensional coordinated punching function of horizontal side punching + vertical punching.

[0050] The chamfering device 5 in the present invention includes a linear guide rail A501, a servo motor A502, a slide A503, a chamfering machine 504 and a support bracket 506. The linear guide rail A501 and the support bracket 506 are fixedly connected to the workbench 3. A servo motor A502 is installed on one side of the linear guide rail A501. The slide A503 is slidably connected to the linear guide rail A501. The chamfering machine 504 is fixedly connected to the slide A503. The present invention can use the chamfering device 5 to synchronously cut and chamfer the two ends of the aluminum tube, remove burrs and provide a guide bevel for punching.

[0051] The working principle process of the present invention is:

[0052] Tube material 9 (aluminum tube) is conveyed from automatic feeder 1 to tube orienting device 2, where it is first oriented. The ribbed tube's ends are then chamfered and punched, completing the process. The oriented tube is then moved by a transport mechanism to subsequent stations, where both sides are chamfered. Next, a punching die punches nine holes in a single press. The other side is then punched to ensure accurate relative positioning of the holes. The equipment's automated orientation, rapid chamfering, and precise, one-shot punching ensure stable and efficient processing.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A punching device for a special-shaped nine-hole tube, comprising a workbench (3), an aluminum tube orienting device (2), a conveying device, a chamfering device (5), a control device (6) and a punching device (7), wherein the aluminum tube orienting device (2), the conveying device, the control device (6) and the punching device (7) are all mounted on the workbench (3), and characterized in that: The punching device (7) comprises a linear guide rail B (701), a servo motor B (702), a slide B (703), a positioning side punching mechanism (704) and a punching mechanism; The linear guide rail B (701) is fixedly mounted on the workbench (3), the servo motor B (702) is connected to one side of the linear guide rail B (701), the slide B (703) is slidably connected to the linear guide rail, and a positioning side punch mechanism (704) is mounted on the slide B (703); The positioning side punch mechanism (704) comprises an oil cylinder A (7041), a push rod (7042), a positioning seat (7043) and a push frame (7044); the positioning seat (7043) is fixedly connected to the slide B (703); the oil cylinder A (7041) is fixedly connected to one side of the positioning seat (7043); the output end of the oil cylinder A (7041) and the push rod (7042) are mutually driven and connected; the push frame (7044) is arranged on the positioning seat (7043); a positioning plug (7045) for positioning and plugging the pipe (9) and a side punch assembly are installed on the push frame (7044); The punching mechanism is arranged on one side of the positioning side punching mechanism (704), and the punching mechanism is used to punch holes on the top and bottom of the pipe (9) at the same time.

2. The punching device for a special-shaped nine-hole pipe according to claim 1, characterized in that: The side punch assembly includes a side push block (704412) and a middle push block (70441). The side push blocks (704412) are fixedly connected to the left and right sides of the push frame (7044), and the middle push block (70441) is fixedly connected to the middle position of the push frame (7044). A side punch block A (7046) is provided on one side of the side push block (704412), and a side punch block B (7047) is provided on the left and right sides of the middle push block (70441).

3. The punching device for a special-shaped nine-hole pipe according to claim 2, characterized in that: The side punch block A (7046) is installed with a side punch A (70461), and the side punch block B (70471) is installed with a side punch B (70471). The side punch A (70461) and the side punch B (70471) are respectively arranged on the left and right sides of the positioning plug (7045), and the side punch A (70461) and the side punch B (70471) are arranged relative to each other.

4. The punching device for a special-shaped nine-hole pipe according to claim 1, characterized in that: The punching mechanism comprises a lower die frame (705) and an upper die frame (710), wherein the lower die frame (705) is fixedly mounted on a workbench (3), a lower die base (708) is arranged on the lower die frame (705), and an upper die base (709) is arranged above the lower die base (708); an oil cylinder B (706) is mounted at the bottom of the lower die frame (705), an output end of the oil cylinder B (706) is driven and connected to a push rod (707), and the push rod (707) and the bottom of the lower die base (708) are connected to each other; an upper die frame (710) is mounted above the lower die frame (705), an oil cylinder C (711) is mounted on the upper die frame (710), a pressure rod (712) is driven and connected to the output end of the oil cylinder, and the pressure rod (712) and the upper die base (709) are connected to each other.

5. The punching device for special-shaped nine-hole pipe according to claim 4, characterized in that: The lower die base (708) is provided with an arc-shaped groove (7081) for placing the pipe (9), and a plurality of lower punch needles (7091) are installed in the arc-shaped groove (7081). A plurality of upper punch needles (7082) are installed at the bottom of the upper die base (709), and the positions of the upper punch needles (7082) and the lower punch needles (7091) correspond to each other.

6. The punching device for special-shaped nine-hole pipes according to claim 1, characterized in that: The chamfering device (5) comprises a linear guide rail A (501), a servo motor A (502), a slide A (503), a chamfering machine (504) and a support bracket (506); the linear guide rail A (501) and the support bracket (506) are both fixedly connected to the workbench (3); a servo motor A (502) is installed on one side of the linear guide rail A (501); the slide A (503) is slidably connected to the linear guide rail A (501); and the chamfering machine (504) is fixedly connected to the slide A (503).

7. The punching device for special-shaped nine-hole pipes according to claim 1, characterized in that: The transport device comprises a transport frame (4), which is fixedly connected to the workbench (3). A plurality of pneumatic clamps (401) for clamping and transporting pipes (9) are installed on the transport frame (4).

8. The punching device for special-shaped nine-hole pipes according to claim 1, characterized in that: A blanking slide (8) for receiving the pipe material (9) is provided on one side of the punching device (7), and the blanking slide (8) and the workbench (3) are fixedly connected to each other.

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