Bending device for aluminum frame of bottom plate of walking machine

Abstract

The utility model discloses a walking machine bottom plate aluminum frame bending device which comprises an operation platform horizontally placed on the ground, a fixing die is fixedly installed on the upper surface of the operation platform, and an aluminum frame plate which needs to be bent and formed and is applied to a walking machine bottom plate is placed on the side face of the fixing die. A movable mold matched with the fixed mold is arranged above the operation platform, and the fixed mold and the movable mold are each provided with an arc-shaped structure. According to the bending device for the aluminum frame of the bottom plate of the walking machine, the novel structural design is adopted, the movable mold is pushed to move through the telescopic air cylinder, so that the movable mold and the fixed mold are matched with each other to achieve the purpose of extruding and bending an aluminum frame plate, and gas in the gas storage tank is conveyed into the heating spray head through the gas conveying pipe before bending; and finally, the purpose of heating the aluminum frame plate is achieved through ignition of the heating spray head, the aluminum frame is softened, and the situation that the aluminum frame is broken during bending is avoided.

Description

Technical Field

[0001] This utility model relates to the field of metal bending technology, specifically to a bending device for the aluminum frame of a treadmill base plate. Background Technology

[0002] A treadmill, also known as a stepper or treadmill, is a type of fitness equipment specifically designed to help people exercise and maintain their health. To ensure the strength of the bottom, treadmills are typically supported by a metal aluminum alloy frame. During the production of the aluminum frame, bending tools are used to bend the aluminum frame into the required curvature.

[0003] In the prior art, Chinese Patent Application No. CN202322152822.9 discloses a low-damage bending device for aluminum alloy frames, relating to the field of bending device technology. It addresses the problem in the prior art where, during the bending production of aluminum alloy frames, the aluminum alloy sheet often suffers surface cracking and damage due to excessive pressure, affecting the bending quality of the aluminum alloy frame. The device comprises a workbench with a slot in the center, a base positioned above the slot, a lower mold positioned in the center above the base, a pressure block fixedly installed in the center below the base, a pressure sensor positioned below the pressure block, and a second electric push rod installed below the pressure sensor. The pressure sensor is fixedly connected to the push rod end of the second electric push rod. Fixed posts are symmetrically arranged on both sides of the second electric push rod, and compression springs are fixedly installed above the fixed posts.

[0004] Based on the above information, it can be seen that in existing technologies, aluminum frames are generally bent by extrusion. However, in actual use, aluminum has a certain degree of rigidity, and internal structural damage and breakage may occur during the bending process. Utility Model Content

[0005] The purpose of this utility model is to provide a bending device for the aluminum frame of a walking machine base plate, so as to solve the problem of breakage during bending mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bending device for an aluminum frame of a treadmill base plate, comprising an operating platform placed horizontally on the ground, a fixed mold fixedly installed on the upper surface of the operating platform, an aluminum frame plate to be bent and formed for use in the treadmill base plate placed on the side of the fixed mold, and a movable mold matching the fixed mold provided above the operating platform, both the fixed mold and the movable mold having an arc-shaped structure, a telescopic cylinder fixedly installed between the movable mold and the operating platform, a heating nozzle heated by a flame rotatably installed inside the side of the fixed mold, and a rotating mechanism for driving the heating nozzle to reciprocate, cooling nozzles for spraying water to cool the formed aluminum frame plate at both ends of the inner side of the movable mold, and an extrusion mechanism for flattening the aluminum frame plate installed in the middle of the inner side of the movable mold.

[0007] Preferably, the rotating mechanism includes a driven worm gear coaxially fixedly mounted on the upper end of the heating nozzle, and the driven worm gear is meshed with the transmission worm.

[0008] Preferably, the transmission worm gear is driven by a drive motor that is fixedly installed inside the fixed mold to rotate periodically.

[0009] Preferably, an air supply pipe is fixedly installed on the upper side of the heating nozzle, and the air supply pipe is connected to an air storage box fixedly installed above the fixed mold.

[0010] Preferably, a water storage tank is fixedly installed on the upper surface of the operating platform, and the water storage tank is connected to the cooling nozzle through a water pump and a water supply pipe.

[0011] Preferably, the extrusion mechanism includes a connecting plate rotatably mounted inside the movable mold, and an extrusion roller that contacts the aluminum frame plate is rotatably mounted on the top of the connecting plate.

[0012] Preferably, the inner side of the movable mold has a square-shaped storage groove, which completely accommodates the connecting plate and the extrusion roller, and an extrusion spring is fixedly installed between the inner wall of the storage groove and the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the aluminum frame bending device for the treadmill base plate adopts a novel structural design, the specific details of which are as follows:

[0014] 1. The movable mold is moved by the telescopic cylinder, so that the movable mold and the fixed mold cooperate to achieve the purpose of extruding and bending the aluminum frame plate. Before bending, the gas in the gas storage tank is transported to the heating nozzle through the gas pipeline, and finally ignited by the heating nozzle to heat the aluminum frame plate, soften the aluminum frame and avoid breakage during bending.

[0015] Furthermore, during the heating process, the drive motor is turned on, which drives the transmission worm to rotate. As the transmission worm rotates, it drives the driven worm wheel that meshes with it to rotate, which in turn drives the heating nozzle to rotate, thus expanding the heating range.

[0016] Furthermore, after bending, water from the storage tank is pumped through a water pipe to the cooling nozzle and sprayed out. The sprayed water is used to cool the heated bent area and restore the rigidity of the aluminum frame plate.

[0017] 2. During the bending process of the aluminum frame plate, the extrusion rollers at the front of the final connecting plate first contact the aluminum frame plate. Then, under the extrusion action, the connecting plate rotates, driving the extrusion rollers to move to both sides, so that the extrusion rollers flatten the aluminum frame plate and avoid wrinkles during extrusion. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the fixed mold structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the fixed mold of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the movable mold structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the internal structure of the storage slot of this utility model.

[0024] In the diagram: 1. Operating platform; 2. Fixed mold; 3. Aluminum frame plate; 4. Movable mold; 5. Telescopic cylinder; 6. Air storage tank; 7. Heating nozzle; 8. Air supply pipe; 9. Driven worm gear; 10. Transmission worm; 11. Drive motor; 12. Cooling nozzle; 13. Water supply pipe; 14. Water storage tank; 15. Collection trough; 16. Connecting plate; 17. Extrusion roller; 18. Extrusion spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1-4 In order to achieve the purpose of heating before bending, this embodiment provides the following technical solution, which specifically discloses: an operating platform 1 placed horizontally on the ground, a fixed mold 2 fixedly installed on the upper surface of the operating platform 1, an aluminum frame plate 3 to be bent and formed for use on the bottom plate of a treadmill placed on the side of the fixed mold 2, and a movable mold 4 matching the fixed mold 2 set above the operating platform 1. Both the fixed mold 2 and the movable mold 4 are provided with arc-shaped structures. A telescopic cylinder 5 is fixedly installed between the movable mold 4 and the operating platform 1. A heating nozzle 7 heated by a flame is rotatably installed inside the side of the fixed mold 2. A rotating mechanism for driving the heating nozzle 7 to reciprocate is provided inside the fixed mold 2. The rotating mechanism includes a driven worm gear 9 coaxially fixedly installed on the upper end of the heating nozzle 7. The driven worm gear 9 is meshed with a transmission worm 10. The transmission worm 10 is driven by a drive motor 11 fixedly installed inside the fixed mold 2 to reciprocate periodically. An air supply pipe 8 is fixedly installed on the upper side of the heating nozzle 7. The air supply pipe 8 is interconnected with an air storage box 6 fixedly installed above the fixed mold 2.

[0027] When using the device, first place the aluminum frame plate 3 to be bent on the side of the fixed mold 2 (near the movable mold 4), then open the telescopic cylinder 5, which drives the movable mold 4 to move and move it close to the aluminum frame plate 3. Then turn on the heating nozzle 7, and the gas in the gas storage tank 6 is delivered to the heating nozzle 7 through the gas supply pipe 8. Finally, the heating nozzle 7 is ignited, and the aluminum frame plate 3 is heated under the action of the flame. During this process, the drive motor 11 inside the fixed mold 2 is turned on, and the drive motor 11 drives the transmission worm gear 10 to rotate, so that the driven worm wheel 9, which is meshed with the transmission worm gear 10, drives the heating nozzle 7 to rotate, expanding the heating range. Finally, the movable mold 4 is pushed to the position where it is pressed against the fixed mold 2. The aluminum frame plate 3 is pressed and bent by the pressing action between the movable mold 4 and the fixed mold 2.

[0028] Example 2: Please refer to Figure 1 and Figure 5 In order to achieve the purpose of cooling, this embodiment provides the following technical solution, which specifically discloses that: a water storage tank 14 is fixedly installed on the upper surface of the operating platform 1, and the water storage tank 14 is interconnected with the cooling nozzle 12 through a water pump and a water supply pipe 13.

[0029] After bending, the telescopic cylinder 5 retracts, and the telescopic cylinder 5 is used to move the movable mold 4 away from the fixed mold 2. Then, the water pump is turned on to transport water from the water storage tank 14 to the cooling nozzle 12 through the water supply pipe 13. The water is sprayed out through the cooling nozzle 12 to achieve the purpose of cooling and shaping the aluminum frame plate 3.

[0030] Example 3: Please refer to Figures 5-6 In order to achieve the purpose of extrusion and leveling, this embodiment provides the following technical solution, which specifically discloses: cooling nozzles 12 are provided at both ends of the inner side of the movable mold 4 for spraying water to cool the aluminum frame plate 3 after forming, and an extrusion mechanism for leveling the aluminum frame plate 3 is installed in the middle of the inner side of the movable mold 4. The extrusion mechanism includes a connecting plate 16 rotatably installed inside the movable mold 4, and an extrusion roller 17 that contacts the aluminum frame plate 3 is rotatably installed at the top of the connecting plate 16. A square-structured storage groove 15 is opened inside the movable mold 4, and the storage groove 15 completely houses the connecting plate 16 and the extrusion roller 17. An extrusion spring 18 is fixedly installed between the inner wall of the storage groove 15 and the connecting plate 16.

[0031] During the extrusion process of the active mold 4, the extrusion roller 17 on its inner side first contacts the aluminum frame plate 3, and then the connecting plate 16 rotates under the extrusion action. The connecting plate 16 drives the extrusion roller 17 to move to both sides, thereby extruding and flattening the middle position of the aluminum frame plate 3 to avoid wrinkles. Finally, the connecting plate 16 and the extrusion roller 17 can be completely stored in the storage slot 15.

[0032] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A walking machine bottom plate aluminum frame bending device, comprising an operation platform (1) horizontally placed on the ground, a fixed mold (2) is fixedly installed on the upper surface of the operation platform (1), characterized in that, Also include: The fixed mold (2) side of the application in the bottom plate of the treadmill aluminum frame plate (3) need to be bent into shape, and the operating platform (1) is provided with a movable mold (4) matched with the fixed mold (2), and the fixed mold (2) and the movable mold (4) are provided with arc structure, the movable mold (4) and operating platform (1) are fixedly installed with telescopic cylinder (5); The fixed mold (2) side is internally rotatably installed with a heating nozzle (7) heated by flame, and the fixed mold (2) is internally provided with a rotating mechanism for driving the heating nozzle (7) to reciprocating rotate; The left and right ends of the movable mold (4) are provided with cooling nozzles (12) for cooling the aluminum frame plate (3) after forming, and the middle of the movable mold (4) is provided with an extrusion mechanism for flattening the aluminum frame plate (3).

2. The tumbler bottom plate aluminum frame bending device according to claim 1, characterized in that: The rotating mechanism comprises a driven worm wheel (9) coaxially fixedly installed on the upper end of the heating nozzle (7), and the driven worm wheel (9) is meshed and connected with the transmission worm (10).

3. The walking machine bottom plate aluminum frame bending device according to claim 2, characterized in that: The transmission worm (10) is driven by a driving motor (11) fixedly installed in the fixed mold (2) to rotate periodically.

4. The walking machine bottom plate aluminum frame bending device according to claim 2, characterized in that: The upper end of the heating nozzle (7) is fixedly installed with a gas pipe (8), and the gas pipe (8) is in communication with the gas storage tank (6) fixedly installed above the fixed mold (2).

5. The tumbler bottom plate aluminum frame bending device according to claim 1, characterized in that: The upper surface of the operating platform (1) is fixedly installed with a water storage tank (14), and the water storage tank (14) is in communication with the cooling nozzle (12) through the water pump and the water pipe (13).

6. The tumbler bottom plate aluminum frame bending device according to claim 1, characterized in that: The extrusion mechanism comprises a connecting plate (16) rotatably installed in the movable mold (4), and the connecting plate (16) is rotatably installed with an extrusion roller (17) contacting the aluminum frame plate (3) at the top end.

7. The walking machine bottom plate aluminum frame bending device according to claim 6, characterized in that: The inside of the movable mold (4) is provided with a receiving groove (15) in square structure, the receiving groove (15) completely receives the connecting plate (16) and the extrusion roller (17), and the extrusion spring (18) is fixedly installed between the inner wall of the receiving groove (15) and the connecting plate (16).

Images