Punch forming device of pipe fitting assembly for wheelchair machining

Abstract

The invention belongs to the technical field of pipe fitting stamping, and discloses a stamping forming device of a pipe fitting assembly for wheelchair machining, the stamping forming device comprises a rack, a workbench is fixedly mounted at the position, close to the bottom end, of the inner side face of the rack, and clamping grooves are formed in the positions, close to the left side and the right side, of the top end of the workbench; and through grooves are formed in the left side and the right side, close to the middle, of the workbench correspondingly, fine adjustment assemblies are movably clamped in the clamping grooves correspondingly, and stamping assemblies are installed at the top ends of the fine adjustment assemblies correspondingly. By means of the adjusting assembly, the clamping assembly and the matching process of the adjusting assembly, the clamping assembly, the fine adjustment assembly and the stamping assembly, the device can automatically complete the clamping process only by pressing a pipe fitting downwards, meanwhile, positioning of the two ends of the pipe fitting can be automatically achieved after clamping is completed, namely positioning before stamping is completed, the whole process is automatically and synchronously completed, and the production efficiency is improved. The process that a traditional device needs to conduct clamping and positioning step by step is not needed, the steps are effectively simplified, the machining time is shortened, and the machining efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe stamping, and in particular relates to a stamping forming device for a pipe assembly for wheelchair processing. Background Art

[0002] Wheelchair pipe assemblies are a crucial component of a wheelchair. They not only support the entire structure but also impact its comfort, stability, and safety. Wheelchair pipe assemblies are typically made of steel, primarily in the form of round tubes, forming the wheelchair's body structure and reinforcing it. Conventional pipe assemblies require stamping at both ends during processing to form a flattened structure for connecting the wheelchair body and installing bolts. Therefore, stamping equipment is used during the pipe assembly process to assist in forming the pipe.

[0003] Conventional stamping and forming devices for pipe fittings are mainly composed of positioning and clamping components and stamping components. In actual use, the pipe fittings and the clamping components need to be fixed first. After fixation, the stamping components are operated to position the two ends. After positioning is completed, the stamping operation is performed. That is, the clamping and positioning processes need to be carried out step by step. When stamping and forming pipe fittings in batches, the required processing time is long, which affects the processing efficiency.

[0004] After completing the positioning of the stamping component, the stamping component needs to be operated for stamping. The entire stamping process requires multiple steps, resulting in a long overall processing time. It is impossible to achieve positioning and stamping at the same time, and improvement is urgently needed. Summary of the Invention

[0005] The object of the present invention is to provide a stamping and forming device for a pipe assembly for wheelchair processing, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stamping forming device for a pipe fitting assembly for wheelchair processing, comprising a frame, a workbench fixedly installed on the inner side surface of the frame near the bottom end, a card slot is provided on the top of the workbench near the left and right sides, a through slot is provided on the left and right sides near the middle of the workbench, a fine-tuning assembly is movably connected to the inside of the card slot, a stamping assembly is installed on the top of the fine-tuning assembly, an adjustment assembly is installed on the bottom end of the workbench, the left and right sides of the top of the adjustment assembly are connected to the bottom end of the fine-tuning assembly, a clamping assembly located on the inner sides of the two through slots is installed on the left and right sides of the top of the workbench, and the inner side surface of the frame is provided with a special-shaped plate located above the stamping assembly.

[0007] When performing normal stamping processing of pipe fittings, the frame needs to be fixed on a flat ground and the corresponding pipe fittings to be processed are prepared. At the same time, this device can be used in conjunction with an external robotic arm to clamp the pipe fittings for automatic loading and unloading of the pipe fittings, completing the automated processing process.

[0008] As a further technical solution of the present invention, an oil cylinder is fixedly installed in the middle of the inner side surface of the frame, the output end of the oil cylinder is connected to the middle of the top of the special-shaped plate, the heights of the left and right ends of the special-shaped plate are higher than the height of the middle, and a permanent magnet is fixedly installed in the middle of the bottom end of the special-shaped plate.

[0009] When stamping the pipe assembly, the middle part of the pipe can be adsorbed and fixed between the permanent magnet, and the special-shaped plate and the pipe can be driven to rise and fall by controlling the extension and contraction of the oil cylinder. When stamping the pipe, the special-shaped plate and the pipe can be driven to fall by the extension of the oil cylinder until the outer side of the pipe contacts the clamping assembly.

[0010] As a further technical solution of the present invention, the clamping assembly includes a longitudinal guide rail, the bottom end of which is connected to the top of the workbench, the front and rear sides of the top of the longitudinal guide rail are movably connected with guide blocks, and the top of the guide blocks are fixedly connected with clamping rings.

[0011] As a further technical solution of the present invention, the two clamping rings are symmetrically distributed front to back, a reset spring located inside the longitudinal guide rail is fixedly connected between the two guide blocks, and the inner side surfaces of the two clamping rings relatively close to one end are provided with guiding inner arc surfaces.

[0012] When the pipe fitting moves downward, the outer side surface of the pipe fitting can contact the inner arc surface of the guide, and through the guiding effect of the inner arc surface of the guide and the continued downward movement of the pipe fitting, a thrust can be applied to the two clamping rings. At this time, the reset spring can be stretched and drive the two clamping rings away from each other until the pipe fitting enters between the two clamping rings. At this time, the guiding effect disappears and the pipe fitting no longer moves downward. At this time, the reset spring automatically resets and drives the two guide blocks closer to each other until the two clamping rings are close to each other, completing the clamping process of the pipe fitting.

[0013] As a further technical solution of the present invention, the fine-tuning component includes a card block, which is movably connected to the card slot. The card block is displaced left and right relative to the card slot. An adjustment slot is provided in the middle of the top of the card block, and an adjustment block is movably connected inside the adjustment slot.

[0014] As a further technical solution of the present invention, the adjusting groove is internally movably connected with a screw, which rotates relative to the adjusting groove. The screw is connected to the internal thread of the adjusting block, and the top end of the adjusting block is connected to the bottom end of the stamping assembly.

[0015] Before stamping the pipe fittings, the fine-tuning assembly can be adjusted according to the length of the pipe fittings. The specific operation is that by rotating the screw, the adjusting block can be driven to move left and right under the action of the thread inside the adjusting block and the guiding action of the adjusting block and the adjusting groove, and the two stamping assemblies at the top can be driven to move left and right. When the two stamping assemblies are relatively close to each other, the stamping processing of shorter pipe fittings can be adapted. If the two stamping assemblies are relatively far away from each other, the stamping processing of longer pipe fittings can be adapted, completing the fine-tuning process for the pipe fitting size.

[0016] As a further technical solution of the present invention, the adjustment assembly includes an adjustment plate located directly below the workbench, an elastic rod is fixedly installed in the middle of the top of the adjustment plate, the top of the elastic rod is connected to the middle of the bottom end of the workbench, and the left and right sides of the top of the adjustment plate are fixedly connected with a first fixed seat, and the end of the first fixed seat away from the adjustment plate is movably connected to a linkage frame through a rotating shaft.

[0017] As a further technical solution of the present invention, the end of the linkage frame away from the first fixed seat is movably connected to the second fixed seat through a rotating shaft, the top of the second fixed seat is connected to the bottom end of the clamping block, and extension rods are fixedly installed on the left and right sides of the top of the adjustment plate. The top of the extension rod passes through the linkage frame and the through slot in sequence and is fixedly connected to a pressure ball located between the stamping assembly and the clamping assembly.

[0018] When the pipe fitting is displaced downward and the outer side surface of the pipe fitting contacts the inner arc surface of the guide, the bottom end of the pipe fitting can contact the pressure ball and exert downward pressure on the extension rod. At this time, the adjustment plate is displaced downward and the elastic rod can be stretched. When the adjustment plate is displaced downward, the left and right linkage frames are deflected, that is, the two linkage frames are displaced in the direction close to the elastic rod and exert tension on the two fine-tuning components and the stamping components at the top. At this time, the two fine-tuning components and the two stamping components are relatively close. When the clamping assembly and the pipe fitting are clamped, the two stamping components are just displaced to the two ends of the pipe fitting, completing the automatic positioning process before stamping.

[0019] By utilizing the adjustment component and the clamping component and the coordination process between the fine-tuning component and the stamping component, the device can automatically complete the clamping process by simply pressing down the pipe fitting. At the same time, the positioning of both ends of the pipe fitting can be automatically achieved after the clamping is completed, that is, the positioning before stamping is completed. The entire process is completed automatically and synchronously, and there is no need for the traditional device to perform the clamping and positioning process in steps, which effectively simplifies the steps, reduces processing time, and improves processing efficiency.

[0020] As a further technical solution of the present invention, the stamping assembly includes a bottom mold, the bottom end of the bottom mold is connected to the top of the adjusting block, and a top mold is provided above the bottom mold. The bottom mold and the top mold are fixedly installed with ear plates on the side away from the clamping assembly, and the top of the ear plate located below is fixedly connected to a guide rod, the top of the guide rod passes through the top ear plate and is movably connected to the top ear plate, and the outer side of the guide rod is movably connected to a reset spring, and the upper and lower ends of the reset spring are respectively connected to the two ear plates.

[0021] As a further technical solution of the present invention, a guiding outer arc surface is provided on the side of the top mold close to the clamping assembly, a suspension plate is fixedly installed on the top end of the inner side surface of the bottom mold, a through hole is provided on the top end of the suspension plate, and a punching rod located directly above the through hole is movably sleeved inside the top mold, the diameter of the punching rod is the same as the inner diameter of the through hole, the top end of the punching rod passes through the top end of the top mold and is fixedly connected to the mounting plate located below the special-shaped plate.

[0022] At the same time, when the pipe fitting moves downward, due to the downward movement of the special-shaped plate, when the middle part of the special-shaped plate moves to the lowest point, the pipe fitting can automatically complete the clamping and positioning before stamping. At the same time, the bottom ends of both sides of the special-shaped plate can contact the top of the stamping component. When the special-shaped plate continues to move downward, it can exert downward pressure on the top mold. At this time, the top mold will move toward the direction of the bottom mold. Since the positioning before stamping has been completed at this time, when the top mold approaches the bottom mold, the stamping process of both ends of the pipe fitting can be completed, the two ends of the pipe fitting can be flattened, and the processing is completed.

[0023] By utilizing the downward movement process of the pipe fitting, the downward movement of the pipe fitting can realize automatic clamping and automatic positioning, and at the same time, force can be applied to the stamping component to automatically complete the stamping process. There is no need to operate the stamping after positioning before stamping. The whole process is completed automatically, and positioning and stamping can be carried out at the same time, further shortening the stamping time and improving the overall processing efficiency.

[0024] At the same time, when the special-shaped plate applies downward pressure on the stamping assembly, the bottom end of the special-shaped plate can first contact the mounting plate, and the mounting plate moves downward accordingly, driving the punching rod to move downward. When the bottom end of the mounting plate contacts the top end of the top mold, the top mold continues to move downward under the action of the special-shaped plate. At this time, the bottom end of the punching rod can protrude from the bottom end of the top mold and contact the outer side surface of the pipe fitting, and as the top mold continues to move downward, the punching rod passes through the through hole to complete the punching process and complete the punching operation.

[0025] By reusing the downward movement process of the pipe fitting, automatic clamping and automatic positioning of the pipe fitting, as well as automatic stamping, can be achieved. Punching can be automatically completed during stamping, so that stamping and punching can be carried out simultaneously, avoiding the problem that traditional devices need to punch after stamping, reducing subsequent punching steps, achieving one-piece molding, simplifying the operation steps, and further improving the overall processing efficiency.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The present invention utilizes the adjustment component and the clamping component and the coordination process between the fine-tuning component and the stamping component, so that the device can automatically complete the clamping process only by pressing down the pipe fitting. At the same time, the positioning of the two ends of the pipe fitting can be automatically achieved after the clamping is completed, that is, the positioning before stamping is completed. The whole process is completed automatically and synchronously, and there is no need for the traditional device to perform the clamping and positioning process in steps, which effectively simplifies the steps, reduces the processing time, and improves the processing efficiency.

[0028] 2. The present invention utilizes the downward movement process of the pipe fitting to achieve automatic clamping and automatic positioning through the downward movement of the pipe fitting, and can apply force to the stamping component to automatically complete the stamping process. There is no need to operate the stamping after positioning before completing the stamping. The entire process is completed automatically, and positioning and stamping can be carried out simultaneously, further shortening the stamping time and improving the overall processing efficiency.

[0029] 3. The present invention realizes automatic clamping and automatic positioning of the pipe fittings, as well as automatic stamping, by reusing the downward movement process of the pipe fittings, and can automatically complete punching during stamping, so that stamping and punching can be performed simultaneously, avoiding the problem that traditional devices need to punch after stamping, reducing subsequent punching steps, realizing one-piece molding, simplifying the operation steps, and further improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the coordination between the frame and the special-shaped plate structure of the present invention;

[0032] Figure 3 It is an exploded schematic diagram of the workbench and adjustment assembly structure of the present invention;

[0033] Figure 4 A separate schematic diagram of the structure of the regulating assembly of the present invention;

[0034] Figure 5 is a separate schematic diagram of the clamping assembly structure of the present invention;

[0035] Figure 6 A schematic diagram of the cooperation between the stamping assembly and the fine-tuning assembly structure of the present invention;

[0036] Figure 7 It is an overall exploded schematic diagram of the stamping assembly structure of the present invention;

[0037] Figure 8 for Figure 6 A magnified schematic diagram of the structure at center A.

[0038] In the figure: 1, frame; 2, oil cylinder; 3, special-shaped plate; 4, permanent magnet; 5, workbench; 6, slot; 7, through slot; 8, adjustment assembly; 801, adjustment plate; 802, elastic rod; 803, first fixed seat; 804, second fixed seat; 805, linkage frame; 806, extension rod; 807, pressure ball; 9, clamping assembly; 901, longitudinal guide rail; 902, guide block; 903, clamping ring; 904, complex Position spring; 905, guide inner arc surface; 10, stamping assembly; 101, bottom mold; 102, top mold; 103, suspension plate; 104, through hole; 105, ear plate; 106, guide rod; 107, return spring; 108, guide outer arc surface; 109, mounting plate; 1010, punching rod; 11, fine-tuning assembly; 111, clamping block; 112, adjusting slot; 113, adjusting block; 114, screw. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] like Figures 1 to 8 As shown, in an embodiment of the present invention, a stamping and forming device for a pipe fitting assembly for wheelchair processing includes a frame 1, a workbench 5 is fixedly installed on the inner side surface of the frame 1 near the bottom end, a card slot 6 is provided on the top of the workbench 5 near the left and right sides, a through slot 7 is provided on the left and right sides near the middle of the workbench 5, a fine-tuning component 11 is movably connected inside the card slot 6, a stamping component 10 is installed on the top of the fine-tuning component 11, an adjusting component 8 is installed at the bottom end of the workbench 5, the left and right sides of the top of the adjusting component 8 are connected to the bottom end of the fine-tuning component 11, a clamping component 9 located on the inner sides of the two through slots 7 is installed on the left and right sides of the top of the workbench 5, and a special-shaped plate 3 is provided on the inner side surface of the frame 1 above the stamping component 10.

[0041] When performing normal stamping processing of pipe fittings, the frame 1 needs to be fixed on a flat ground and the corresponding pipe fittings to be processed are prepared. At the same time, the device can be used in conjunction with an external robotic arm to clamp the pipe fittings through the external robotic arm for automatic loading and unloading of the pipe fittings, thereby completing the automated processing process.

[0042] like Figure 1 and Figure 2 As shown, a cylinder 2 is fixedly installed in the middle of the inner side of the frame 1, the output end of the cylinder 2 is connected to the middle of the top of the special-shaped plate 3, the heights of the left and right ends of the special-shaped plate 3 are higher than the height of the middle, and a permanent magnet 4 is fixedly installed in the middle of the bottom end of the special-shaped plate 3.

[0043] When the pipe assembly is being stamped, the middle part of the pipe can be adsorbed and fixed between the permanent magnet 4, and the special-shaped plate 3 and the pipe can be driven to rise and fall by controlling the extension and contraction of the oil cylinder 2. When the pipe is being stamped, the special-shaped plate 3 and the pipe can be driven to fall by the extension of the oil cylinder 2 until the outer side of the pipe contacts the clamping assembly 9.

[0044] like Figure 1 and Figure 3 as well as Figure 5 As shown, the clamping assembly 9 includes a longitudinal guide rail 901, the bottom end of the longitudinal guide rail 901 is connected to the top of the workbench 5, and the front and rear sides of the top of the longitudinal guide rail 901 are movably clamped with guide blocks 902, and the tops of the guide blocks 902 are fixedly connected with clamping rings 903, and the two clamping rings 903 are symmetrically distributed front to back. A reset spring 904 located inside the longitudinal guide rail 901 is fixedly connected between the two guide blocks 902, and the inner side surfaces of the two clamping rings 903 relatively close to one end are provided with guiding inner arc surfaces 905.

[0045] When the pipe fitting moves downward, the outer side surface of the pipe fitting can contact the guide inner arc surface 905, and through the guiding effect of the guide inner arc surface 905 and the continued downward movement of the pipe fitting, a thrust can be applied to the two clamping rings 903. At this time, the reset spring 904 can be stretched and drive the two clamping rings 903 away from each other until the pipe fitting enters between the two clamping rings 903. At this time, the guiding effect disappears and the pipe fitting no longer moves downward. At this time, the reset spring 904 automatically resets to drive the two guide blocks 902 closer to each other until the two clamping rings 903 closer to each other, completing the clamping process of the pipe fitting.

[0046] like Figure 1 and Figure 3 as well as Figure 6 and Figure 8As shown, the fine-tuning component 11 includes a clamping block 111, which is movably clamped with the clamping slot 6. The clamping block 111 is displaced left and right relative to the clamping slot 6. An adjustment slot 112 is provided in the middle of the top of the clamping block 111. The inside of the adjustment slot 112 is movably clamped with an adjustment block 113. The inside of the adjustment slot 112 is movably connected with a screw 114. The screw 114 rotates relative to the adjustment slot 112. The screw 114 is connected to the internal thread of the adjustment block 113. The top of the adjustment block 113 is connected to the bottom end of the stamping assembly 10.

[0047] Before stamping the pipe fittings, the fine-tuning component 11 can be adjusted according to the length of the pipe fittings. The specific operation is that by rotating the screw 114, the adjusting block 113 can be driven to move left and right under the action of the thread inside the adjusting block 113 and the guiding action of the adjusting block 113 and the adjusting groove 112, and the two stamping components 10 at the top can be driven to move left and right. When the two stamping components 10 are relatively close to each other, they can be adapted to the stamping processing of shorter pipe fittings. If the two stamping components 10 are relatively far away from each other, they can be adapted to the stamping processing of longer pipe fittings, completing the fine-tuning process for the pipe fitting size.

[0048] like Figure 1 and Figure 3 as well as Figure 4 As shown, the adjustment component 8 includes an adjustment plate 801 located directly below the workbench 5, and an elastic rod 802 is fixedly installed in the middle of the top of the adjustment plate 801, and the top of the elastic rod 802 is connected to the middle of the bottom end of the workbench 5, and the left and right sides of the top of the adjustment plate 801 are fixedly connected to the first fixed seat 803, and the end of the first fixed seat 803 away from the adjustment plate 801 is movably connected to the linkage frame 805 through a rotating shaft, and the end of the linkage frame 805 away from the first fixed seat 803 is movably connected to the second fixed seat 804 through a rotating shaft, and the top of the second fixed seat 804 is connected to the bottom end of the block 111, and the left and right sides of the top of the adjustment plate 801 are fixedly installed with an extension rod 806, and the top of the extension rod 806 passes through the linkage frame 805 and the through slot 7 in sequence and is fixedly connected to the pressure ball 807 located between the stamping assembly 10 and the clamping assembly 9.

[0049] Embodiment: When the pipe fitting is displaced downward and the outer side surface of the pipe fitting contacts the guide inner arc surface 905, the bottom end of the pipe fitting can contact the pressure ball 807 and apply downward pressure to the extension rod 806. At this time, the adjustment plate 801 is displaced downward, and the elastic rod 802 can be stretched. When the adjustment plate 801 is displaced downward, the left and right linkage frames 805 are deflected, that is, the two linkage frames 805 are displaced in the direction close to the elastic rod 802, and tension is applied to the two fine-tuning components 11 and the stamping components 10 at the top. At this time, the two fine-tuning components 11 and the two stamping components 10 are relatively close to each other. When the clamping component 9 completes clamping with the pipe fitting, the two stamping components 10 are just displaced to the two ends of the pipe fitting, completing the automatic positioning process before stamping.

[0050] By utilizing the adjustment component 8 and the clamping component 9 and the coordination process between the fine-tuning component 11 and the stamping component 10, the device can automatically complete the clamping process by simply pressing down the pipe. At the same time, the positioning of both ends of the pipe can be automatically achieved after the clamping is completed, that is, the positioning before stamping is completed. The entire process is completed automatically and synchronously, without the need for traditional devices to perform the clamping and positioning process in steps, which effectively simplifies the steps, reduces processing time, and improves processing efficiency.

[0051] like Figure 1 and Figure 3 as well as Figure 6 and Figure 7 As shown, the stamping assembly 10 includes a bottom mold 101, the bottom end of the bottom mold 101 is connected to the top of the adjustment block 113, and a top mold 102 is provided above the bottom mold 101. The bottom mold 101 and the top mold 102 are fixedly installed with an ear plate 105 on the side away from the clamping assembly 9. The top of the lower ear plate 105 is fixedly connected with a guide rod 106. The top of the guide rod 106 passes through the top ear plate 105 and is movably connected to the top ear plate 105. The outer side of the guide rod 106 is movably connected with a return spring 107. The upper side of the return spring 107 is fixedly connected to the upper side of the return spring 107. The lower two ends are respectively connected to the two ear plates 105. A guiding outer arc surface 108 is provided on the side of the top mold 102 close to the clamping assembly 9. A suspension plate 103 is fixedly installed on the top of the inner side of the bottom mold 101. A through hole 104 is provided on the top of the suspension plate 103. The internal movably sleeve of the top mold 102 is provided with a punching rod 1010 located directly above the through hole 104. The diameter of the punching rod 1010 is the same as the inner diameter of the through hole 104. The top end of the punching rod 1010 passes through the top of the top mold 102 and is fixedly connected to the mounting plate 109 located below the special-shaped plate 3.

[0052] Embodiment: At the same time, when the pipe fitting moves downward, due to the downward movement of the special-shaped plate 3, when the middle part of the special-shaped plate 3 moves down to the lowest point, the pipe fitting can automatically complete the clamping and positioning before stamping, and at the same time, the bottom ends of both sides of the special-shaped plate 3 can contact the top of the stamping assembly 10. When the special-shaped plate 3 continues to move downward, it can apply downward pressure to the top mold 102. At this time, the top mold 102 is displaced toward the bottom mold 101. Since the positioning before stamping has been completed at this time, when the top mold 102 approaches the bottom mold 101, the stamping process of the two ends of the pipe fitting can be completed, the two ends of the pipe fitting are flattened, and the processing is completed.

[0053] By utilizing the downward movement process of the pipe fitting, the downward movement of the pipe fitting can realize automatic clamping and automatic positioning, and at the same time, a force can be applied to the stamping component 10 to automatically complete the stamping process. There is no need to operate the stamping after positioning before completing the stamping. The entire process is completed automatically, and positioning and stamping can be carried out at the same time, further shortening the stamping time and improving the overall processing efficiency.

[0054] At the same time, when the special-shaped plate 3 applies downward pressure to the stamping assembly 10, since the bottom end of the special-shaped plate 3 can first contact the mounting plate 109, the mounting plate 109 moves downward and drives the punching rod 1010 to move downward. When the bottom end of the mounting plate 109 contacts the top of the top mold 102, the top mold 102 continues to move downward under the action of the special-shaped plate 3. At this time, the bottom end of the punching rod 1010 can protrude from the bottom end of the top mold 102 and contact the outer side surface of the pipe fitting. As the top mold 102 continues to move downward, the punching rod 1010 passes through the through hole 104 to complete the punching process and complete the punching operation.

[0055] By reusing the downward movement process of the pipe fitting, automatic clamping and automatic positioning of the pipe fitting, as well as automatic stamping, can be achieved. Punching can be automatically completed during stamping, so that stamping and punching can be carried out simultaneously, avoiding the problem that traditional devices need to punch after stamping, reducing subsequent punching steps, achieving one-piece molding, simplifying the operation steps, and further improving the overall processing efficiency.

[0056] Working principle and usage process:

[0057] Before the pipe is stamped, the fine-tuning assembly 11 can be adjusted according to the length of the pipe. Specifically, by rotating the lead screw 114, the adjusting block 113 can be driven to move left and right under the action of the thread inside the adjusting block 113 and the guiding action of the adjusting block 113 and the adjusting slot 112, thereby driving the two top stamping assemblies 10 to move left and right. When the two stamping assemblies 10 are relatively close to each other, the shorter pipe can be stamped. If the two stamping assemblies 10 are relatively far away from each other, the longer pipe can be stamped, thereby completing the fine-tuning process for the pipe size.

[0058] When punching the pipe assembly, the middle part of the pipe can be fixed between the permanent magnet 4 and the elongation and contraction of the oil cylinder 2 to drive the special-shaped plate 3 and the pipe to rise and fall. When punching the pipe, the elongation of the oil cylinder 2 can drive the special-shaped plate 3 and the pipe to fall until the outer side of the pipe contacts the clamping assembly 9.

[0059] When the pipe moves downward, the outer side of the pipe can contact the guide inner arc surface 905, and through the guiding effect of the guide inner arc surface 905 and the continued downward movement of the pipe, a thrust can be applied to the two clamping rings 903. At this time, the return spring 904 can be stretched and drive the two clamping rings 903 to move away from each other until the pipe enters between the two clamping rings 903. At this time, the guiding effect disappears and the pipe no longer moves downward. At this time, the return spring 904 automatically resets and drives the two guide blocks 902 to move closer to each other until the two clamping rings 903 move closer to each other, completing the clamping process of the pipe.

[0060] When the pipe fitting is displaced downward and the outer side surface of the pipe fitting contacts the guide inner arc surface 905, the bottom end of the pipe fitting can contact the pressure ball 807 and exert downward pressure on the extension rod 806. At this time, the adjustment plate 801 is displaced downward, and the elastic rod 802 can be stretched. When the adjustment plate 801 is displaced downward, the left and right linkage frames 805 are deflected, that is, the two linkage frames 805 are displaced in the direction close to the elastic rod 802, and exert tension on the two fine-tuning components 11 and the stamping components 10 at the top. At this time, the two fine-tuning components 11 and the two stamping components 10 are relatively close to each other. When the clamping component 9 completes clamping with the pipe fitting, the two stamping components 10 are just displaced to the two ends of the pipe fitting, completing the automatic positioning process before stamping.

[0061] At the same time, when the pipe fitting moves downward, due to the downward movement of the special-shaped plate 3, when the middle part of the special-shaped plate 3 moves downward to the lowest point, the pipe fitting can automatically complete the clamping and positioning before stamping. At the same time, the bottom ends of both sides of the special-shaped plate 3 can contact the top of the stamping assembly 10. When the special-shaped plate 3 continues to move downward, it can apply downward pressure to the top mold 102. At this time, the top mold 102 is displaced toward the bottom mold 101. Since the positioning before stamping has been completed at this time, when the top mold 102 approaches the bottom mold 101, the stamping process of the two ends of the pipe fitting can be completed, and the two ends of the pipe fitting can be flattened to complete the processing.

[0062] At the same time, when the special-shaped plate 3 applies downward pressure to the stamping assembly 10, since the bottom end of the special-shaped plate 3 can first contact the mounting plate 109, the mounting plate 109 moves downward and drives the punching rod 1010 to move downward. When the bottom end of the mounting plate 109 contacts the top of the top mold 102, the top mold 102 continues to move downward under the action of the special-shaped plate 3. At this time, the bottom end of the punching rod 1010 can protrude from the bottom end of the top mold 102 and contact the outer side surface of the pipe fitting. As the top mold 102 continues to move downward, the punching rod 1010 passes through the through hole 104 to complete the punching process and complete the punching operation.

[0063] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A punching and forming device for a pipe assembly for wheelchair processing, comprising a frame (1), characterized in that: A workbench (5) is fixedly mounted on the inner side surface of the frame (1) near the bottom end, a clamping slot (6) is provided on the top of the workbench (5) near the left and right sides, a through slot (7) is provided on the left and right sides near the middle of the workbench (5), a fine-tuning assembly (11) is movably clamped inside the clamping slot (6), a punching assembly (10) is installed on the top end of the fine-tuning assembly (11), an adjustment assembly (8) is installed on the bottom end of the workbench (5), the left and right sides of the top end of the adjustment assembly (8) are connected to the bottom end of the fine-tuning assembly (11), a clamping assembly (9) located on the inner side surfaces of the two through slots (7) is installed on the left and right sides of the top end of the workbench (5), and a special-shaped plate (3) located above the punching assembly (10) is provided on the inner side surface of the frame (1).

2. The punching and forming device for a pipe assembly for wheelchair processing according to claim 1, characterized in that: An oil cylinder (2) is fixedly mounted in the middle of the inner side surface of the frame (1); an output end of the oil cylinder (2) is connected to the middle of the top end of the special-shaped plate (3); the heights of the left and right ends of the special-shaped plate (3) are higher than the height of the middle; and a permanent magnet (4) is fixedly mounted in the middle of the bottom end of the special-shaped plate (3).

3. The punching and forming device for a wheelchair processing pipe assembly according to claim 1, characterized in that: The clamping assembly (9) comprises a longitudinal guide rail (901), the bottom end of the longitudinal guide rail (901) is connected to the top end of the workbench (5), the front and rear sides of the top end of the longitudinal guide rail (901) are movably clamped with guide blocks (902), and the top end of the guide blocks (902) are fixedly connected with clamp rings (903).

4. The punching and forming device for a pipe assembly for wheelchair processing according to claim 3, characterized in that: The two clamping rings (903) are symmetrically distributed front to back, a return spring (904) located inside the longitudinal guide rail (901) is fixedly connected between the two guide blocks (902), and a guiding inner arc surface (905) is provided on the inner side surfaces of the two clamping rings (903) relatively close to one end.

5. The punching and forming device for a wheelchair pipe assembly according to claim 1, characterized in that: The fine adjustment component (11) comprises a clamping block (111), the clamping block (111) is movably clamped with the clamping slot (6), the clamping block (111) is displaced leftward and rightward relative to the clamping slot (6), an adjustment slot (112) is provided in the middle of the top of the clamping block (111), and an adjustment block (113) is movably clamped inside the adjustment slot (112).

6. The punching and forming device for a pipe assembly for wheelchair processing according to claim 5, characterized in that: The adjusting groove (112) is internally movably connected with a lead screw (114), the lead screw (114) rotates relative to the adjusting groove (112), the lead screw (114) is connected to the internal thread of the adjusting block (113), and the top end of the adjusting block (113) is connected to the bottom end of the stamping assembly (10).

7. The punching and forming device for a wheelchair pipe assembly according to claim 6, characterized in that: The adjustment assembly (8) comprises an adjustment plate (801) located directly below the workbench (5); an elastic rod (802) is fixedly mounted in the middle of the top end of the adjustment plate (801); the top end of the elastic rod (802) is connected to the middle of the bottom end of the workbench (5); the left and right sides of the top end of the adjustment plate (801) are both fixedly connected to first fixed seats (803); and one end of the first fixed seat (803) away from the adjustment plate (801) is movably connected to a linkage frame (805) via a rotating shaft.

8. The punching and forming device for a pipe assembly for wheelchair processing according to claim 7, characterized in that: One end of the linkage frame (805) away from the first fixed seat (803) is movably connected to the second fixed seat (804) via a rotating shaft, and the top of the second fixed seat (804) is connected to the bottom end of the clamping block (111). Extension rods (806) are fixedly installed on both the left and right sides of the top of the adjustment plate (801), and the top of the extension rod (806) passes through the linkage frame (805) and the through groove (7) in sequence and is fixedly connected to a pressure ball (807) located between the stamping component (10) and the clamping component (9).

9. The punching and forming device for a pipe assembly for wheelchair processing according to claim 8, characterized in that: The punching assembly (10) comprises a bottom die (101), the bottom end of which is connected to the top end of an adjusting block (113), a top die (102) being arranged above the bottom die (101), an ear plate (105) being fixedly mounted on the side of the bottom die (101) and the top die (102) away from the clamping assembly (9), a guide rod (106) being fixedly connected to the top end of the ear plate (105) located at the bottom, the top end of which passes through the ear plate (105) at the top end and being movably sleeved with the ear plate (105) at the top end, a return spring (107) being movably sleeved on the outer side surface of the guide rod (106), the upper and lower ends of the return spring (107) being respectively connected to the space between the two ear plates (105).

10. The punching and forming device for a pipe assembly for wheelchair processing according to claim 9, characterized in that: A guiding outer arc surface (108) is provided on one side of the top mold (102) close to the clamping assembly (9); a suspension plate (103) is fixedly installed on the top end of the inner side surface of the bottom mold (101); a through hole (104) is provided on the top end of the suspension plate (103); a punching rod (1010) located directly above the through hole (104) is movably sleeved inside the top mold (102); the diameter of the punching rod (1010) is the same as the inner diameter of the through hole (104); the top end of the punching rod (1010) passes through the top end of the top mold (102) and is fixedly connected to a mounting plate (109) located below the special-shaped plate (3).

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