Flattening forming tool for bent pipe of fitness equipment

Abstract

The invention discloses a flattening forming tool for a bent pipe of fitness equipment, and belongs to the technical field of pipe machining, the flattening forming tool for the bent pipe of the fitness equipment comprises a lower forming module and an upper forming module which are matched with each other, and two limiting rods are fixedly connected to the two sides of the top of the lower forming module; a connecting assembly is slidably connected between the two limiting rods, and the upper forming module is sleeved with a first reset spring. Punch forming modules are installed on the two sides of the top of the upper forming module in a sliding mode, a sliding extrusion module is installed on the upper forming module in a sliding mode, and a supporting ejection module is further installed in the center of the bottom of the lower forming module. By designing the upper forming module, the lower forming module and the punch forming module, bending, flattening, punching and punching and other operations of a pipe can be completed at a time, only manual feeding and discharging operation needs to be completed, the production and machining efficiency is improved, and meanwhile more manpower and material resources are saved.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe processing, and particularly relates to a fitness equipment elbow pipe flattening and forming tooling. Background Art

[0002] The flattening process of elbow pipes in fitness equipment refers to the process of flattening, forming, or adjusting the shape of pipes through specific processes to meet specific design requirements or functions. Such processing is common in the frames, support parts, connecting components, etc. of fitness equipment. Currently, the common flattening processing methods are as follows: Hydraulic flattening: Clamp the pipe with a hydraulic press and apply pressure to flatten the pipe in a specific area. Mechanical stamping: Use stamping equipment to apply an impact force to the pipe to flatten it. Rolling or roller pressing: Gradually flatten the pipe through roller pressing. Flattening treatment after arc welding: During the welding process, some parts of the pipe need to be flattened to ensure the stability of the welding point or enhance the local strength.

[0003] In most cases, the flattening process of elbow pipes in fitness equipment is used for the processing of connecting parts, such as brackets, support columns, connecting columns, etc. Generally, flattening processing is used to enhance the connection effect or make it more convenient to assemble with other parts. Currently, the flattening process of elbow pipes in fitness equipment usually consists of two independent processes: bending and flattening (usually including punching). This processing technology not only requires the use of different processing equipment but also wastes a lot of manpower and material resources. It is not only not conducive to improving production and processing efficiency but also seriously affects the production and processing progress during large-scale processing. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide a fitness equipment elbow pipe flattening and forming tooling.

[0005] The technical solution adopted to solve the above technical problem is: A fitness equipment elbow pipe flattening and forming tooling, including a lower forming module and an upper forming module that cooperate with each other. The lower forming module includes a lower die base, and the upper forming module includes an upper die base; Both sides of the top of the lower forming module are fixedly connected with two limiting rods, and a connecting component is slidably connected between the two groups of limiting rods. A first return spring is sleeved on the upper forming module; Both sides of the top of the upper forming module are slidably installed with stamping and forming modules, and a sliding extrusion module is slidably installed on the upper forming module. During the downward pressing process, the two groups of stamping and forming modules can be simultaneously pressed downward to complete the stamping and forming of both ends of the pipe; A support and ejection module is also installed at the center of the bottom of the lower forming module for supporting the pipe before processing and ejecting the pipe after processing.

[0006] Furthermore, a lower forming groove is provided at the center of the top of the lower die base. Through-holes for scrap punching and internal punching holes are respectively provided at both ends of the lower forming groove, and corresponding waste discharge grooves are provided on both sides of the bottom of the lower die base.

[0007] Through the above technical solution, the lower forming groove provided on the lower die base can cooperate with the upper forming groove provided at the center of the bottom of the upper die base to complete the bending and forming of the pipe. After the lower forming module and the upper forming module are combined, the pipe can be bent and formed at one time, and the connecting parts at both ends of the pipe can be flattened. In addition, through-holes for scrap punching and internal punching holes are respectively provided at both ends of the lower forming groove. After the pipe is bent and flattened, the punching and processing of the flattened parts at both ends can be completed by two sets of stamping forming modules subsequently, so that the pipe can be processed and formed at one time to form the final formed bent pipe. The waste discharge grooves provided on both sides of the bottom of the lower die base are used to discharge the excess waste generated after punching.

[0008] Furthermore, a U-shaped mounting hole is provided at the center of the bottom of the lower die base.

[0009] Through the above technical solution, the installation and positioning of the support and ejection module can be more conveniently achieved.

[0010] Furthermore, two first limiting holes matching the corresponding limiting rods are provided at both ends of the upper die base. An upper forming groove is provided at the center of the bottom of the upper die base. Limiting sliding holes and limiting round holes are respectively provided at both ends of the upper forming groove. A support block is fixedly connected to the center of the top of the upper die base. A guiding column is fixedly connected to the center of the top of the support block. Guiding rods are fixedly connected to both sides of the top of the upper die base, and limiting nuts are threadedly connected to the tops of the two guiding rods.

[0011] Through the above technical solution, the upper forming groove provided at the center of the bottom of the upper die base can cooperate with the lower forming groove during the die closing process to complete the one-time bending and forming of the pipe and the flattening of the connecting parts at both ends of the pipe. The limiting sliding holes and limiting round holes respectively provided at the ends of the upper forming groove can play a role in sliding limitation for the installation of the stamping forming module, thereby ensuring the processing accuracy of the stamping forming module. The design of the two guiding columns can make the entire upper forming module and the connecting component form a linkage structure. During the rising and resetting process of the connecting component, the upper forming module can also be driven to reset for subsequent blanking.

[0012] Furthermore, the first return spring is sleeved on the outer wall of the guiding column.

[0013] Through the above technical solution, during the processing, the piston rod of the hydraulic drive unit will drive the connecting assembly to move downward. During this process, the connecting assembly will squeeze the first return spring downward, and then drive the entire upper forming module to close the mold downward, so as to complete the bending of the pipe and the flattening of both ends by the mutual cooperation of the lower forming module and the upper forming module. When the pipe processing is completed and the hydraulic drive unit is reset, under the elastic reaction force of the first return spring, it will drive the connecting assembly and the sliding extrusion module to reset.

[0014] Further, the connecting assembly includes a connecting frame sleeved between two limiting rods. Second limiting holes for the corresponding limiting rods to penetrate are formed at the corners of the connecting frame. A guiding hole for the guiding column to penetrate is formed at the central position of the connecting frame. Two third limiting holes for the corresponding guiding rods to penetrate are also formed on both sides of the connecting frame. Extrusion columns are fixedly connected to both sides of the bottom of the connecting frame, and connecting seats are fixedly connected to both sides of the top of the connecting frame.

[0015] Through the above technical solution, the connecting assembly is mainly used for the connection and transition between the hydraulic drive unit and the upper forming module. The two connecting seats are connected to the piston rod of the hydraulic drive unit. During actual use, the piston rod of the hydraulic drive unit drives the entire connecting assembly to move up and down. During the process of bending and flattening the pipe, first, the connecting frame squeezes the first return spring downward by moving downward, and then drives the entire upper forming module to close the mold downward. After the upper forming module closes the mold downward, the connecting frame will continue to move downward, so that the extrusion columns on both sides of the bottom of the connecting frame simultaneously squeeze the sliding extrusion module downward. Finally, the two stamping and forming modules are driven by the extrusion of the sliding extrusion module to complete the punching and cutting of the formed pipe. After the processing is completed, the connecting frame will also drive the upper forming module to reset during the upward reset process, so as to realize automatic mold opening for subsequent blanking.

[0016] Further, the stamping and forming module includes a fixed block. A punching block and a punching column are respectively fixedly connected to the bottom of the fixed block. The punching block and the punching column are respectively slidably limited in the corresponding limiting slide holes and limiting round holes. A second return spring is also sleeved on the outer wall of the punching column. A fixed column is fixedly connected to the center of the top of the punching column, and the top of the fixed column is designed with an inclined surface.

[0017] Through the above technical solution, the stamping and forming module is mainly used for the punching and cutting of both ends of the pipe after bending and flattening. During actual work, when the sliding extrusion module moves downward, the sliding extrusion module will simultaneously squeeze the fixed column downward, and then drive the punching block and the punching column to quickly perform a shearing movement downward, so as to shear and punch the surplus material at the end of the flattened pipe, making it form the final formed bent pipe. When the sliding extrusion module rises and resets, under the elastic reaction force of the second return spring, it will push the entire stamping and forming module to rise and reset.

[0018] Furthermore, the sliding extrusion module includes a fixed plate sliding on the outer walls of the two guide rods, a fourth limiting hole for the guide column to pass through is opened in the middle of the fixed plate, and two fifth limiting holes for the corresponding guide rods to pass through are opened on both sides of the fixed plate, and extrusion blocks are fixedly connected at both ends of the fixed plate, and the bottoms of the two extrusion blocks are opened with limiting grooves matching the corresponding fixed columns.

[0019] Through the above technical solution, the downward extrusion force of the sliding extrusion module is mainly provided by the connecting assembly, and during the downward movement of the sliding extrusion module, the extrusion blocks fixedly connected at both ends of the fixed plate will simultaneously squeeze the stamping forming module downward. At this time, the fixed column will slide in the limit groove and continue to descend in height, finally completing the punching processing operation.

[0020] Furthermore, the support ejection module includes an ejection seat slidably installed in the U-shaped mounting hole, support grooves are provided on both sides of the top of the ejection seat, a sixth limiting hole is provided at the center of the bottom of the ejection seat, a support column is slidably connected in the sixth limiting hole, a mounting plate is fixedly connected to the bottom of the support column, and a third return spring is sleeved on the outer wall of the support column.

[0021] Through the above technical scheme, in the loading stage, due to the lifting effect of the third return spring, the heights of the two sides of the top of the ejector seat will exceed the horizontal height of the lower molding groove. At this time, the operator can place the pipe to be processed horizontally in the two supporting grooves, and the two ends can be roughly symmetrical. At this time, the ejector seat can provide stable support and positioning for the placed pipe. In the subsequent mold closing process, the ejector seat will also ensure that the pipe will not rotate or shift, thereby ensuring the processing accuracy and processing quality. After the processing is completed, during the rising and resetting process of the upper molding module, the third return spring loses its downward extrusion force. At this time, under the elastic reaction force of the third return spring, the ejector seat can move upward again, so that the molded bent pipe after processing can be ejected out of the lower molding groove, which is more convenient for unloading.

[0022] Furthermore, the ejector seat is designed to have a U-shaped structure, and the mounting plate is fixed to the bottom of the U-shaped mounting hole by a plurality of fixing screws.

[0023] Through the above technical solution, the U-shaped structure of the ejector seat can form a more stable support structure, and its overall structural design is also more convenient for rapid installation and fixation as well as daily inspection and maintenance.

[0024] The beneficial effects of the present invention are as follows: (1) By designing the upper and lower forming modules and the stamping forming module, the present invention can complete operations such as bending, flattening, punching and cutting of the pipe in one go. Workers only need to complete the loading and unloading operations, which not only improves the production and processing efficiency, but also saves more manpower and material resources; (2) By designing the connection component, the stamping forming module and the sliding extrusion module, the present invention can synchronously complete the punching and cutting process of the formed pipe during the bending and flattening process of the pipe, which not only ensures the overall production and processing efficiency, but also ensures the overall production and processing accuracy, and is suitable for large-scale continuous production and processing; (3) By designing the support and ejection module, the support and positioning of the placed pipe can be stably achieved during the feeding stage. At the same time, after the processing is completed, under the elastic reaction force of the third return spring, the ejection seat can move upward, so that the formed bent pipe after processing can be ejected from the lower forming groove, which is more convenient for unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the first perspective structure diagram of the present invention; Figure 2 is the second perspective structure diagram of the present invention; Figure 3 is the front view of the present invention; Figure 4 is the right view of the present invention; Figure 5 is Figure 4 the three-dimensional sectional view in the A-A direction of Figure 6 is Figure 5 the partial enlarged view at A in Figure 7 is the first perspective structure schematic diagram of the lower forming module of the present invention; Figure 8 is the second perspective structure schematic diagram of the lower forming module of the present invention; Figure 9 is the first perspective structure schematic diagram of the upper forming module of the present invention; Figure 10 is the second perspective structure schematic diagram of the upper forming module of the present invention; Figure 11 is the structure schematic diagram of the connection component of the present invention; Figure 12 is the first perspective structure schematic diagram of the stamping forming module of the present invention; Figure 13 is the second perspective structure schematic diagram of the stamping forming module of the present invention; Figure 14 is the structure schematic diagram of the sliding extrusion module of the present invention; Figure 15It is a schematic structural diagram of the support and ejection module of the present invention; Figure 16 It is a schematic structural diagram of the formed bent pipe of the present invention; Figure 17 It is the front view of the formed bent pipe of the present invention.

[0026] Reference numerals: 1, lower forming module; 101, lower die base; 102, lower forming groove; 103, waste punching hole; 104, inner punching hole; 105, waste discharging groove; 106, U-shaped mounting hole; 2, upper forming module; 201, upper die base; 202, first limiting hole; 203, upper forming groove; 204, limiting sliding hole; 205, limiting round hole; 206, support block; 207, guide post; 208, guide rod; 209, limiting nut; 3, limiting rod; 4, connecting component; 401, connecting frame; 402, second limiting hole; 403, guide hole; 404, third limiting hole; 405, extrusion column; 406, connecting seat; 5, first return spring; 6, stamping and forming module; 601, fixed block; 602, punching block; 603, punching column; 604, second return spring; 605, fixed column; 7, sliding extrusion module; 701, fixed plate; 702, fourth limiting hole; 703, fifth limiting hole; 704, extrusion block; 705, limiting groove; 8, support and ejection module; 801, ejection seat; 802, support groove; 803, sixth limiting hole; 804, support column; 805, mounting plate; 806, third return spring; 9, formed bent pipe. Detailed implementation manners

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] As Figures 1 - 17As shown in the figure, a bending and flattening forming tooling for a fitness equipment elbow pipe according to this embodiment includes a lower forming module 1 and an upper forming module 2 that cooperate with each other. The lower forming module 1 includes a lower die base 101. A lower forming groove 102 is provided at the center of the top of the lower die base 101. Through holes for excess material punching 103 and internal punching holes 104 are respectively provided at both ends of the lower forming groove 102. And waste discharge grooves 105 corresponding thereto are provided on both sides of the bottom of the lower die base 101. The lower forming groove 102 provided on the lower die base 101 can cooperate with the upper forming groove 203 provided at the center of the bottom of the upper die base 201 to complete the bending forming of the pipe. After the lower forming module 1 and the upper forming module 2 are closed, the pipe can be bent and formed at one time and the connecting parts at both ends of the pipe can be flattened. In addition, through holes for excess material punching 103 and internal punching holes 104 are respectively provided at both ends of the lower forming groove 102. After the pipe is bent and flattened, subsequent punching and processing of the flattened parts at both ends can be completed by two sets of stamping forming modules 6, so that the pipe can be processed and formed at one time to form the final formed elbow pipe 9. The waste discharge grooves 105 provided on both sides of the bottom of the lower die base 101 are used to discharge the excess waste generated after punching.

[0029] Furthermore, in this embodiment, a U-shaped mounting hole 106 is provided at the center of the bottom of the lower die base 101. By providing the U-shaped mounting hole 106, it is more convenient to support and position the installation of the ejecting module 8.

[0030] Regarding the upper forming module 2, refer to Figures 1 - 10 , the upper forming module 2 includes an upper die base 201. Two first limiting holes 202 matching the corresponding limiting rods 3 are provided at both ends of the upper die base 201. An upper forming groove 203 is provided at the center of the bottom of the upper die base 201. Limiting sliding holes 204 and limiting round holes 205 are respectively provided at both ends of the upper forming groove 203. A support block 206 is fixedly connected to the center of the top of the upper die base 201. A guiding column 207 is fixedly connected to the center of the top of the support block 206. Guiding rods 208 are fixedly connected to both sides of the top of the upper die base 201. And limiting nuts 209 are threadedly connected to the tops of the two guiding rods 208. The upper forming groove 203 provided at the center of the bottom of the upper die base 201 can cooperate with the lower forming groove 102 during the die closing process to complete the one-time bending forming of the pipe and the flattening of the connecting parts at both ends of the pipe. The limiting sliding holes 204 and limiting round holes 205 respectively provided at the ends of the upper forming groove 203 can play a role in sliding limit for the installation of the stamping forming module 6, thus ensuring the processing accuracy of the stamping forming module 6. The design of the two guiding columns 207 can make the entire upper forming module 2 form a linkage structure with the connecting component 4. During the process of the connecting component 4 rising and resetting, the upper forming module 2 can also be driven to reset for subsequent blanking.

[0031] Further in this embodiment, the first return spring 5 is sleeved on the outer wall of the guide post 207. During the processing, the piston rod of the hydraulic drive unit will drive the connecting assembly 4 to move downward. During this process, the connecting assembly 4 will squeeze the first return spring 5 downward, and then drive the entire upper forming module 2 to close the mold downward. Thus, the bending of the pipe and the flattening of both ends are completed by the mutual cooperation of the lower forming module 1 and the upper forming module 2. When the pipe processing is completed and the hydraulic drive unit is reset, under the elastic reaction force of the first return spring 5, the connecting assembly 4 and the sliding extrusion module 7 will be driven to reset.

[0032] Regarding the connecting assembly 4, refer to Figures 1 - 5 and Figure 11 , two limit rods 3 are fixedly connected to both sides of the top of the lower forming module 1. A connecting assembly 4 is slidably connected between the two groups of limit rods 3. The connecting assembly 4 includes a connecting frame 401 sleeved between the two groups of limit rods 3. Second limit holes 402 for the corresponding limit rods 3 to penetrate are opened at the corners of the connecting frame 401. A guide hole 403 for the guide post 207 to penetrate is opened at the central position of the connecting frame 401. Two third limit holes 404 for the corresponding guide rods 208 to penetrate are also opened on both sides of the connecting frame 401. Extrusion columns 405 are fixedly connected to both sides of the bottom of the connecting frame 401, and connecting seats 406 are fixedly connected to both sides of the top of the connecting frame 401. The connecting assembly 4 is mainly used for the connection and transition between the hydraulic drive unit and the upper forming module 2. The two connecting seats 406 are connected to the piston rod of the hydraulic drive unit (not shown in the figure). During actual use, the piston rod of the hydraulic drive unit drives the entire connecting assembly 4 to move up and down. During the process of bending and flattening the pipe, first, the connecting frame 401 squeezes the first return spring 5 downward through downward movement, and then drives the entire upper forming module 2 to close the mold downward. After the upper forming module 2 closes the mold downward, the connecting frame 401 will continue to move downward, so that the extrusion columns 405 on both sides of the bottom of the connecting frame 401 simultaneously squeeze the sliding extrusion module 7 downward. Finally, the two stamping and forming modules 6 are driven by the extrusion of the sliding extrusion module 7 to complete the punching and cutting process of the formed pipe. After the processing is completed, the connecting frame 401 will also drive the upper forming module 2 to reset during the upward reset process, thereby realizing automatic mold opening for subsequent blanking.

[0033] Stamping and forming modules 6 are slidably installed on both sides of the top of the upper forming module 2. A sliding extrusion module 7 is slidably installed on the upper forming module 2, which can simultaneously squeeze the two stamping and forming modules 6 downward during the downward pressing process to complete the stamping and forming of both ends of the pipe.

[0034] Regarding the stamping and forming module 6, refer to Figures 12 - 13, the stamping and forming module 6 includes a fixed block 601. At the bottom of the fixed block 601, a punching block 602 and a punching column 603 are respectively and fixedly connected. The punching block 602 and the punching column 603 are respectively slidably limited within the corresponding limiting slide holes 204 and limiting round holes 205. A second return spring 604 is also sleeved on the outer wall of the punching column 603. At the center of the top of the punching column 603, a fixed column 605 is fixedly connected. The top of the fixed column 605 is designed with an inclined surface. The stamping and forming module 6 is mainly used for punching and cutting the two ends of the pipe after the pipe is bent and flattened. During actual operation, when the sliding extrusion module 7 moves downward, the sliding extrusion module 7 will simultaneously squeeze the fixed column 605 downward, and then drive the punching block 602 and the punching column 603 to quickly perform a shearing motion downward, so as to shear and punch the surplus material at the end of the flattened pipe, and form the final formed bent pipe 9. When the sliding extrusion module 7 rises and resets, under the elastic reaction force of the second return spring 604, it will push the entire stamping and forming module 6 to rise and reset.

[0035] Regarding the sliding extrusion module 7, refer to Figures 1 - 5 and Figure 14 , the sliding extrusion module 7 includes a fixing plate 701 that slides on the outer walls of two guide rods 208. A fourth limiting hole 702 for the guide column 207 to pass through is provided in the middle of the fixing plate 701. Two fifth limiting holes 703 for the corresponding guide rods 208 to pass through are also provided on both sides of the fixing plate 701. At both ends of the fixing plate 701, extrusion blocks 704 are fixedly connected. Limiting grooves 705 that match the corresponding fixed columns 605 are provided at the bottoms of the two extrusion blocks 704. The sliding extrusion module 7 mainly receives the downward extrusion force provided by the connecting component 4. And during the downward movement of the sliding extrusion module 7, the extrusion blocks 704 fixedly connected to both ends of the fixing plate 701 will simultaneously squeeze the stamping and forming module 6 downward. At this time, the fixed column 605 will slide within the limiting groove 705 and continuously decrease in height, and finally complete the punching and cutting operation.

[0036] Regarding the supporting and ejecting module 8, refer to Figures 1 - 5 and Figure 15A support ejection module 8 is also installed at the bottom center of the lower molding module 1, which is used to support the pipe before processing and eject the pipe after processing. The support ejection module 8 includes an ejection seat 801 slidably installed in the U-shaped mounting hole 106, and support grooves 802 are provided on both sides of the top of the ejection seat 801. A sixth limiting hole 803 is provided at the bottom center of the ejection seat 801, and a support column 804 is slidably connected in the sixth limiting hole 803. The bottom of the support column 804 is fixedly connected with a mounting plate 805, and the outer wall of the support column 804 is sleeved with a third return spring 806. In the loading stage, due to the lifting effect of the third return spring 806, the height of the two sides of the top of the ejection seat 801 will exceed the level of the lower molding groove 102 Height, at this time, the operator can place the pipe to be processed horizontally in the two supporting grooves 802, with the two ends roughly symmetrical. At this time, the ejector seat 801 can provide stable support and positioning for the placed pipe. In the subsequent mold closing process, the ejector seat 801 will also ensure that the pipe will not rotate or shift, thereby ensuring the processing accuracy and quality. After the processing is completed, during the rising and resetting process of the upper molding module 2, the third reset spring 806 loses its downward extrusion force. At this time, under the elastic reaction force of the third reset spring 806, the ejector seat 801 can move upward again, so that the molded elbow 9 after processing can be ejected from the lower molding groove 102, which is more convenient for unloading.

[0037] Furthermore, in this embodiment, the ejector seat 801 is designed in a U-shaped structure, and the mounting plate 805 is fixed to the bottom of the U-shaped mounting hole 106 by a plurality of fixing screws. The ejector seat 801 with a U-shaped structure can form a more stable supporting structure, and its overall structural design is also more convenient for quick installation and fixation as well as daily inspection and maintenance.

[0038] The working principle of this embodiment is as follows. During processing, the operator places the pipe to be processed horizontally in the two supporting grooves 802, keeping the two ends roughly symmetrical, and then the piston rod of the hydraulic drive unit drives the entire connecting assembly 4 to descend. In the process of bending and flattening the pipe, the connecting frame 401 will first squeeze the first return spring 5 by moving downward, thereby driving the entire upper forming module 2 to close the mold downward. When the upper forming module 2 is closed downward, the connecting frame 401 will continue to move downward, thereby causing the extrusion columns 405 on both sides of the bottom of the connecting frame 401 to squeeze the sliding extrusion module 7 downward at the same time. Finally, the extrusion sliding extrusion module 7 drives the two groups of stamping forming modules 6 to complete the punching processing of the formed pipe. After the processing is completed, the connecting frame 401 will also drive the upper forming module 2 to reset during the rising and resetting process; During the upward reset process of the upper forming module 2, since the third reset spring 806 loses the downward extrusion force, at this time, under the elastic reaction force of the third reset spring 806, the ejection seat 801 can move upward again, so that the formed bent pipe 9 after processing can be ejected from the lower forming groove 102. At this time, the operator can conveniently carry out blanking.

[0039] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A bending and flattening forming tooling for fitness equipment, comprising a lower forming module (1) and an upper forming module (2) which cooperate with each other, and is characterized in that: The lower forming module (1) includes a lower die base (101), and the upper forming module (2) includes an upper die base (201). On both sides of the top of the lower forming module (1), two limiting rods (3) are fixedly connected. A connecting component (4) is slidably connected between the two groups of limiting rods (3), and a first return spring (5) is sleeved on the upper forming module (2). On both sides of the top of the upper forming module (2), a stamping and forming module (6) is slidably installed. A sliding extrusion module (7) is slidably installed on the upper forming module (2), which can simultaneously extrude the two groups of stamping and forming modules (6) downward during the downward pressing process to complete the stamping and forming of both ends of the pipe. At the center of the bottom of the lower forming module (1), a supporting and ejecting module (8) is also installed, which is used for supporting the pipe before processing and ejecting the pipe after processing.

2. The tube bending and flattening forming tooling for fitness equipment according to claim 1, wherein, At the center of the top of the lower die base (101), a lower forming groove (102) is opened. At both ends of the lower forming groove (102), through waste material punching holes (103) and inner punching holes (104) are respectively opened, and waste discharge grooves (105) corresponding to them are opened on both sides of the bottom of the lower die base (101).

3. The bending and flattening forming tooling for fitness equipment pipe according to claim 1, wherein, A U-shaped mounting hole (106) is opened at the center of the bottom of the lower die base (101).

4. The bending and flattening forming tooling for fitness equipment pipe according to claim 1, wherein At both ends of the upper die base (201), two first limiting holes (202) matching the corresponding limiting rods (3) are opened. At the center of the bottom of the upper die base (201), an upper forming groove (203) is opened. At both ends of the upper forming groove (203), a limiting sliding hole (204) and a limiting circular hole (205) are respectively opened. At the center of the top of the upper die base (201), a supporting block (206) is fixedly connected. At the center of the top of the supporting block (206), a guiding column (207) is fixedly connected. On both sides of the top of the upper die base (201), guiding rods (208) are fixedly connected, and limiting nuts (209) are threadedly connected to the tops of the two guiding rods (208).

5. The bending and flattening forming tooling for fitness equipment according to claim 4, characterized in that The first return spring (5) is sleeved on the outer wall of the guiding column (207).

6. The bending and flattening forming tooling for fitness equipment elbow pipe according to claim 4, characterized in that, The connecting component (4) includes a connecting frame (401) sleeved between the two groups of limiting rods (3). Second limiting holes (402) for the corresponding limiting rods (3) to pass through are opened at the corners of the connecting frame (401). A guiding hole (403) for the guiding column (207) to pass through is opened at the center position of the connecting frame (401). Two third limiting holes (404) for the corresponding guiding rods (208) to pass through are also opened on both sides of the connecting frame (401). Extrusion columns (405) are fixedly connected to both sides of the bottom of the connecting frame (401), and connecting seats (406) are fixedly connected to both sides of the top of the connecting frame (401).

7. The bending and flattening forming tooling for fitness equipment pipe according to claim 4, characterized in that, The stamping and forming module (6) includes a fixed block (601). The bottom of the fixed block (601) is fixedly connected with a punching block (602) and a punching column (603) respectively. The punching block (602) and the punching column (603) are respectively slidably limited in corresponding limiting sliding holes (204) and limiting round holes (205). A second return spring (604) is also sleeved on the outer wall of the punching column (603). The top center of the punching column (603) is fixedly connected with a fixed column (605), and the top of the fixed column (605) is designed with an inclined surface.

8. The fitness equipment elbow pipe flattening and forming tooling according to claim 6, characterized in that, The sliding extrusion module (7) includes a fixing plate (701) sliding on the outer walls of two guide rods (208). A fourth limiting hole (702) for the guide column (207) to pass through is opened in the middle of the fixing plate (701). Two fifth limiting holes (703) for the corresponding guide rods (208) to pass through are also opened on both sides of the fixing plate (701). Both ends of the fixing plate (701) are fixedly connected with extrusion blocks (704). Limiting grooves (705) matching the corresponding fixed columns (605) are opened at the bottoms of the two extrusion blocks (704).

9. The bending and flattening forming tooling for fitness equipment elbows according to claim 3, characterized in that, The supporting and ejecting module (8) includes an ejecting seat (801) slidably installed in the U-shaped installation hole (106). Supporting grooves (802) are opened on both sides of the top of the ejecting seat (801). A sixth limiting hole (803) is opened at the center of the bottom of the ejecting seat (801). A supporting column (804) is slidably connected in the sixth limiting hole (803). The bottom of the supporting column (804) is fixedly connected with a mounting plate (805). A third return spring (806) is sleeved on the outer wall of the supporting column (804).

10. The fitness equipment elbow pipe flattening and forming tooling according to claim 9, characterized in that, The ejecting seat (801) is designed in a U-shaped structure, and the mounting plate (805) is fixed to the bottom of the U-shaped installation hole (106) by a plurality of fixing screws.

Images