Plate overall self-resistance heating incremental forming device

Abstract

The utility model discloses a sheet material integral self-resistance heating incremental forming device which comprises a machine tool body, baffles are fixedly installed on the two symmetrical sides of the upper end face of the machine tool body, a connecting plate is fixedly installed on one sides of the two baffles, a self-resistance heating assembly is arranged on the connecting plate, and a rapid cooling assembly is installed on a U-shaped frame. A transmission assembly is installed on the machine tool body. The utility model relates to the technical field of incremental forming machining of plates. The conductor clamping box is used for clamping a formed plate, the conductor clamping box is used for guiding heat of the clamped plate into cold water in the conductor clamping box, the cold water becomes hot after absorbing the heat, and then hot water is sucked into the refrigerator for refrigeration along the second connecting pipe through the pump body on the water outlet pipe. Refrigerated water is pumped into a cold water box through a pump body on a water inlet pipe, then cold water is pumped into a conductor clamping box through a pump body on a first connecting pipe, and the process is repeated, so that the plate can be quickly cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of plate material progressive forming processing, in particular to a plate material integral self-resistance heating progressive forming device. Background Art

[0002] Incremental forming technology is a new type of dieless forming process. This technology has the characteristics of high flexibility, short development cycle and low cost in the production mode of small batches and multiple varieties. In recent years, the demand for lightweight alloy sheet metal parts in the aerospace sector has been increasing. However, these lightweight alloys have poor plasticity at room temperature and are difficult to form. The incremental forming technology at room temperature is not competent for the precise forming of such materials. In order to overcome the forming defects of such materials at room temperature, on the basis of the original incremental forming technology, a self-resistance electric heating method is adopted to process such materials by passing a large current through the sheet to generate a large amount of Joule heat instantly.

[0003] At present, after the sheet metal processing is completed, it is necessary to lift the forming tool head, turn off the DC power supply, and remove the processed sheet metal after the temperature drops to room temperature. However, the natural cooling speed of the sheet metal is slow, which reduces the work efficiency. Therefore, the utility model provides a sheet metal integral self-resistance heating progressive forming device, which solves the above problem through limiting structures such as a conductor clamping box and a cold water box. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a plate material integral self-resistance heating progressive forming device, which solves the above-mentioned problems.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a sheet material integral self-resistance heating progressive forming device, comprising a machine tool body, a control support platform is fixedly installed on one side of the upper end surface of the machine tool body, a forming tool head is arranged on one side of the bottom of the control support platform, baffles are fixedly installed on both sides symmetrically of the upper end surface of the machine tool body, a connecting plate is fixedly installed on one side of the two baffles, a self-resistance heating component is arranged on the connecting plate, the same U-shaped frame is fixedly installed on one side of the top of the two baffles, a rapid cooling component is installed on the U-shaped frame, and a transmission component is installed on the machine tool body.

[0006] The rapid cooling component includes an electric push rod 1 fixedly installed on the top of the U-shaped frame, an output end of the electric push rod 1 passes through the bottom of the U-shaped frame and is fixedly installed with a moving block, one side of the moving block is symmetrically rotatably connected with a connecting column 1, a T-shaped slide rail is fixedly installed in the U-shaped frame, one side of the T-shaped slide rail is symmetrically rotatably connected with a transmission rod, both ends of the two transmission rods are provided with limited sliding grooves, the bottom of the T-shaped slide rail is symmetrically slidably connected with an insulating T-shaped slider, one side of the two insulating T-shaped sliders is rotatably connected with a connecting column 2, one side of the two insulating T-shaped sliders is fixedly installed with a conductor clamping box on the bottom side, a cold water box is fixedly installed on one side of the top of the U-shaped frame, a connecting pipe 1 is fixedly connected to both sides of the bottom of the cold water box, a connecting pipe 2 is fixedly connected to both sides of the top of the cold water box, a water outlet pipe is fixedly connected between the two connecting pipes 2 inside the cold water box through a tee, a water inlet pipe is fixedly connected to one side of the top of the cold water box, and a telescopic pipe is fixedly connected to the bottom ends of the connecting pipe 1 and the connecting pipe 2, and one end of the telescopic pipe is fixedly connected to the inside of the conductor clamping box.

[0007] Preferably, the self-resistance heating assembly includes a driving motor fixedly mounted on one side of the baffle, telescopic rods are symmetrically fixedly mounted on both sides of the bottom of the connecting plate, the bottom ends of the two telescopic rods are fixedly mounted with the same powered clamping plate through insulating pads, threaded rods are symmetrically fixedly mounted on both sides of the top of the powered clamping plate through insulating pads, the outer surfaces of the two threaded rods are threadedly connected with threaded cylinders, the top ends of the two threaded cylinders pass through bearings to the top of the connecting plate and are fixedly mounted with driving wheels, the two driving wheels are connected by belt drive, and the output end of the driving motor is fixedly mounted on the top of the driving wheel.

[0008] Preferably, the transmission assembly includes a horizontal plate fixedly installed between one side of the two baffles, two electric push rods are symmetrically fixedly installed on one side of the horizontal plate, the output ends of the two electric push rods are fixedly installed with the same insulating supporting plate, T-shaped slide bars are symmetrically fixedly installed on both sides of the insulating supporting plate, T-shaped slide grooves matching the T-shaped slide bars are opened on the inner sides of the two baffles, and sheet material is placed on the insulating supporting plate.

[0009] Preferably, the T-shaped slide rail matches the insulating T-shaped slide block, the connecting column 1 matches the limiting slide groove at the top of the transmission rod, and the connecting column 2 matches the limiting slide groove at the bottom of the transmission rod.

[0010] Preferably, the transmission rod is arranged in an L shape, the first connecting column is slidably connected in a limiting sliding groove at the top of the transmission rod, and the second connecting column is slidably connected in a limiting sliding groove at the bottom of the transmission rod.

[0011] Preferably, a pump body is provided on the connecting pipe 1, the connecting pipe 2, the water outlet pipe and the water inlet pipe.

[0012] Preferably, a refrigerator is provided between the water outlet pipe and the water inlet pipe.

[0013] Preferably, the two powered clamps and the sheet material are connected to a DC power supply, and a current loop is formed between the two powered clamps, the DC power supply, and the sheet material.

[0014] Beneficial Effects

[0015] The utility model provides a plate integral self-resistance heating progressive forming device. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The utility model can effectively drive the conductor clamping box to clamp the formed sheet material through the mutual cooperation among the electric push rod 1, the moving block, the connecting column 1, the T-shaped slide rail, the transmission rod, the limiting slide groove, the insulating T-shaped slide block and the connecting column 2. The conductor clamping box introduces the heat of the clamped sheet material into the cold water in the conductor clamping box. The cold water becomes hot after absorbing the heat, and then the hot water is sucked into the refrigerator along the connecting pipe 2 through the pump body on the water outlet pipe for cooling. The cooled water is pumped into the cold water box through the pump body on the water inlet pipe, and then the cold water is pumped into the conductor clamping box through the pump body on the connecting pipe 1. This is repeated to quickly cool the sheet material.

[0017] (2) The utility model starts the driving motor to drive the driving wheel to rotate, and at the same time, through the cooperation of the belt, it can drive the two threaded cylinders to rotate at the same time. While the two threaded cylinders are rotating, through the cooperation of the telescopic rod, they can simultaneously drive the powered clamping plate at the bottom of the threaded rod to squeeze and clamp the sheet material, and then the powered clamping plate is connected to a DC power supply, which can effectively self-resistance heat the entire sheet material and increase the heating speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the rapid cooling component of the utility model;

[0020] Figure 3 It is a schematic diagram of the self-resistance heating component of the utility model;

[0021] Figure 4 It is a schematic diagram of a transmission component of the utility model.

[0022] In the figure, 1, machine tool body; 2, control support platform; 3, forming tool head; 4, baffle; 5, connecting plate; 6, U-shaped frame; 7, pump body; 100, self-resistance heating component; 101, driving motor; 102, telescopic rod; 103, power clamp; 104, threaded rod; 105, threaded cylinder; 106, driving wheel; 200, rapid cooling component; 201, electric push rod 1; 202, moving block; 203, connecting column 1; 204, T-type slide Rail; 205, transmission rod; 206, limiting slide; 207, insulating T-shaped slider; 208, connecting column 2; 209, conductor clamping box; 210, cold water box; 211, connecting pipe 1; 212, connecting pipe 2; 213, water outlet pipe; 214, water inlet pipe; 215, telescopic pipe; 300, transmission assembly; 301, cross plate; 302, electric push rod 2; 303, insulating bearing plate; 304, T-shaped slide; 305, T-shaped slide. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1:

[0025] See also Figure 1-4 A sheet material integral self-resistance heating progressive forming device comprises a machine tool body 1, a control support platform 2 is fixedly installed on one side of the upper end surface of the machine tool body 1, a forming tool head 3 is arranged on one side of the bottom of the control support platform 2, the control support platform 2 can control the forming tool head 3 to move along a set trajectory, so that the sheet material undergoes continuous local deformation, and finally generates the required parts, baffles 4 are fixedly installed on both sides of the upper end surface of the machine tool body 1 symmetrically, a connecting plate 5 is fixedly installed on one side of the two baffles 4, a self-resistance heating component 100 is arranged on the connecting plate 5, the same U-shaped frame 6 is fixedly installed on one side of the top of the two baffles 4, a rapid cooling component 200 is installed on the U-shaped frame 6, and a transmission component 300 is installed on the machine tool body 1.

[0026] The rapid cooling component 200 includes an electric push rod 201 fixedly installed on the top of the U-shaped frame 6, the input end of the electric push rod 201 is connected to the power supply through an external cable, the output end of the electric push rod 201 passes through the bottom of the U-shaped frame 6 and is fixedly installed with a moving block 202, one side of the moving block 202 is symmetrically connected to a connecting column 203, a T-shaped slide rail 204 is fixedly installed in the U-shaped frame 6, one side of the T-shaped slide rail 204 is symmetrically connected to a transmission rod 205, both ends of the two transmission rods 205 are provided with a limited position slide groove 206, the bottom of the T-shaped slide rail 204 is symmetrically connected to an insulating T-shaped slider 207, and the two insulating One side of the T-shaped slider 207 is rotatably connected with a connecting column 208, and one side of the bottom of the two insulating T-shaped sliders 207 is fixedly installed with a conductor clamping box 209. The bottom surface of the conductor clamping box 209 is on the same horizontal plane as the top surface of the insulating bearing plate 303 in the transmission assembly 300. A cold water box 210 is fixedly installed on one side of the top of the U-shaped frame 6. The two sides of the bottom of the cold water box 210 are fixedly connected with a connecting pipe 1 211, and the two sides of the top of the cold water box 210 are fixedly connected with a connecting pipe 212. Between the two connecting pipes 212, there is a water outlet pipe 213 located inside the cold water box 210 and fixedly connected through a tee. The top side of the cold water box 210 is fixedly connected A water inlet pipe 214 is provided, and the bottom ends of the connecting pipe 1 211 and the connecting pipe 2 212 are fixedly connected with a telescopic pipe 215, and one end of the telescopic pipe 215 is fixedly connected to the inside of the conductor clamping box 209. The sheet material can be quickly cooled by the set fast cooling component 200. When the sheet material needs to be quickly cooled, the moving block 202 is driven downward by starting the electric push rod 1 201. At the same time, the two conductor clamping boxes 209 are driven to cool the sheet material by the mutual cooperation between the connecting column 1 203, the T-shaped slide rail 204, the transmission rod 205, the limit slide groove 206, the insulating T-shaped slide block 207 and the connecting column 208. The material is clamped and fixed, and the conductor clamping box 209 introduces the heat of the clamped sheet material into the cold water in the conductor clamping box 209. The cold water absorbs the heat and becomes hot, and then the hot water is drawn into the water outlet pipe 213 along the connecting pipe 212 by starting the pump body 7 on the connecting pipe 212. At the same time, the pump body 7 on the water outlet pipe 213 is started and sucked into the refrigerator for cooling. The cooled water is pumped into the cold water box 210 by starting the pump body 7 on the water inlet pipe 214, and then the cold water is pumped into the corresponding conductor clamping box 209 through the pump body 7 on the connecting pipe 1 211 at both ends. This process is repeated to quickly cool the sheet material.

[0027] Embodiment 2:

[0028] See also Figure 1-4This embodiment provides a technical solution based on the first embodiment: the self-resistance heating component 100 includes a driving motor 101 fixedly mounted on one side of the baffle 4, the input end of the driving motor 101 is connected to the power supply through an external cable, telescopic rods 102 are fixedly mounted on both sides of the bottom of the connecting plate 5 symmetrically, the bottom ends of the two telescopic rods 102 are fixedly mounted with the same power-on clamping plate 103 through an insulating pad, the power-on clamping plate 103 is connected to the DC power supply through a wire, and threaded rods 104 are fixedly mounted on both sides of the top of the power-on clamping plate 103 symmetrically through an insulating pad, the outer surfaces of the two threaded rods 104 are threadedly connected with threaded cylinders 105, the top ends of the two threaded cylinders 105 pass through the bearings to the top of the connecting plate 5 and are fixedly mounted with driving wheels 106, and the two driving wheels 10 6 are connected by belt transmission, and the output end of the driving motor 101 is fixedly installed on the top of the driving wheel 106. The self-resistance heating component 100 can quickly perform self-resistance heating on the sheet material. When the sheet material needs to be quickly self-resistance heated, the driving motor 101 is started to drive the driving wheel 106 to rotate. At the same time, the two threaded cylinders 105 can be driven to rotate at the same time through the cooperation of the belt. When the two threaded cylinders 105 rotate, through the cooperation of the telescopic rod 102, the powered clamping plate 103 at the bottom of the threaded rod 104 can be driven to squeeze and clamp the sheet material. Then the powered clamping plate 103 is connected to a DC power supply. At the same time, the detected temperature data is compared with the preset temperature data through the temperature sensor, so as to control the heating temperature of the sheet material. The transmission assembly 300 includes a horizontal plate 301 fixedly installed between one side of the two baffles 4, an electric push rod 2 302 is symmetrically fixedly installed on one side of the horizontal plate 301, the input end of the electric push rod 2 302 is connected to the power supply through an external cable, and the output ends of the two electric push rods 2 302 are fixedly installed with the same insulating carrier plate 303, and T-shaped slide bars 304 are symmetrically fixedly installed on both sides of the insulating carrier plate 303. T-shaped slide grooves 305 matching the T-shaped slide bars 304 are provided on the inner sides of the two baffles 4, and a sheet of material is placed on the insulating carrier plate 303. The T-shaped slide rail 204 matches the insulating T-shaped slide block 207, the connecting column 1 203 matches the limiting slide groove 206 at the top of the transmission rod 205, and the connecting column 2 208 matches with the limiting slide groove 206 at the bottom of the transmission rod 205. The transmission rod 205 is set in an L shape. The connecting column 1 203 is slidably connected in the limiting slide groove 206 at the top of the transmission rod 205. The connecting column 208 is slidably connected in the limiting slide groove 206 at the bottom of the transmission rod 205. The pump body 7 is arranged on the connecting pipe 1 211, the connecting pipe 212, the water outlet pipe 213 and the water inlet pipe 214. A refrigerator is arranged between the water outlet pipe 213 and the water inlet pipe 214. The refrigerator includes a refrigeration cycle composed of four parts, namely a compressor, a condenser, an evaporator and an expansion valve. The water outlet pipe 213 is connected to the water inlet of the refrigerator, and the water inlet pipe 214 is connected to the water outlet of the refrigerator. The two powered clamps 103 and the sheet are connected with a DC power supply.The two powered clamps 103, the DC power supply, and the sheet form a current loop. The DC power supply provides a low-voltage current of up to 36V, and its maximum output current should be no less than 200A, which is used to provide current to the sheet to generate Joule heat. The low voltage ensures the safety of the operator. A temperature sensor is provided between the sheet powered clamp 103 and the insulating carrier plate 303. The temperature sensor measures the sheet temperature and adjusts the sheet temperature by controlling the output current of the DC power supply through the controller, ultimately realizing closed-loop temperature control of the sheet, and the sheet is softened as a whole at high temperature.

[0029] During operation, the sheet material is first placed on the insulating carrier plate 303, and then the electric push rod 2 302 is started to drive the insulating carrier plate 303 to move between the two powered clamping plates 103, and then the driving motor 101 is started to drive the driving wheel 106 to rotate, and at the same time, through the cooperation of the belt, the two threaded cylinders 105 can be driven to rotate at the same time. While the two threaded cylinders 105 are rotating, through the cooperation of the telescopic rod 102, the powered clamping plate 103 at the bottom of the threaded rod 104 can be driven to squeeze and clamp the sheet material, and then the powered clamping plate 103 is connected to the DC power supply, and the detected temperature data is compared with the preset temperature data through the temperature sensor, so as to control the heating temperature of the sheet material, thereby quickly performing self-resistance heating on the sheet material, and when the sheet material reaches the set temperature, the control support platform 2 is operated to drive the forming tool head 3 for processing, and the forming tool head 3 is lifted after the processing is completed, and the DC power supply is turned off, and then the electric push rod 2 302 is started again to drive the sheet material on the insulating carrier plate 303 Move to between the two conductor clamping boxes 209, then start the electric push rod 1 201 to drive the moving block 202 to move downward, and at the same time, through the cooperation between the connecting column 1 203, the T-shaped slide rail 204, the transmission rod 205, the limit slide groove 206, the insulating T-shaped slider 207 and the connecting column 2 208, the two conductor clamping boxes 209 are driven to clamp and fix the sheet material. The conductor clamping box 209 introduces the heat of the clamped sheet material into the cold water in the conductor clamping box 209, and the cold water absorbs The hot water becomes hot after being heated, and then the hot water is drawn into the water outlet pipe 213 along the connecting pipe 212 by starting the pump body 7 on the connecting pipe 212, and at the same time, the pump body 7 on the water outlet pipe 213 is started to be sucked into the refrigerator for cooling. The cooled water is pumped into the cold water box 210 by starting the pump body 7 on the water inlet pipe 214, and then the cold water is pumped into the corresponding conductor clamping box 209 through the pump body 7 on the connecting pipe 1 211 at both ends. This process is repeated to quickly cool the sheet metal.

Claims

1. A sheet metal integral self-resistance heating incremental forming device, comprising a machine tool body (1), characterized in that: A control support platform (2) is fixedly mounted on one side of the upper end surface of the machine tool body (1), a forming tool head (3) is arranged on one side of the bottom of the control support platform (2), baffles (4) are fixedly mounted on both sides of the upper end surface of the machine tool body (1) symmetrically, a connecting plate (5) is fixedly mounted on one side of the two baffles (4), a self-resistance heating component (100) is arranged on the connecting plate (5), a same U-shaped frame (6) is fixedly mounted on one side of the top of the two baffles (4), a rapid cooling component (200) is installed on the U-shaped frame (6), and a transmission component (300) is installed on the machine tool body (1); The rapid cooling component (200) comprises an electric push rod (201) fixedly mounted on the top of a U-shaped frame (6); the output end of the electric push rod (201) passes through the bottom of the U-shaped frame (6) and is fixedly mounted with a moving block (202); one side of the moving block (202) is symmetrically rotatably connected to a connecting column (203); a T-shaped slide rail (204) is fixedly mounted inside the U-shaped frame (6); one side of the T-shaped slide rail (204) is symmetrically rotatably connected to a transmission rod (205); both ends of the two transmission rods (205) are provided with limiting slide grooves (206); the bottom of the T-shaped slide rail (204) is symmetrically slidably connected to an insulating T-shaped slider (207); one side of the two insulating T-shaped sliders (207) is rotatably connected to a connecting column (208); and the two A conductor clamping box (209) is fixedly mounted on one side of the bottom of the insulating T-shaped slider (207), a cold water box (210) is fixedly mounted on one side of the top of the U-shaped frame (6), a connecting pipe (211) is fixedly connected to both sides of the bottom of the cold water box (210), a connecting pipe (212) is fixedly connected to both sides of the top of the cold water box (210), a water outlet pipe (213) is fixedly connected to the inside of the cold water box (210) via a tee between the two connecting pipes (212), a water inlet pipe (214) is fixedly connected to one side of the top of the cold water box (210), a telescopic pipe (215) is fixedly connected to the bottom of the connecting pipe (211) and the connecting pipe (212), and one end of the telescopic pipe (215) is fixedly connected to the inside of the conductor clamping box (209).

2. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 1, characterized in that: The self-resistance heating assembly (100) comprises a driving motor (101) fixedly mounted on one side of the baffle (4); telescopic rods (102) are fixedly mounted on both sides of the bottom of the connecting plate (5) symmetrically; the bottom ends of the two telescopic rods (102) are fixedly mounted with a same power-carrying clamp (103) via an insulating pad; threaded rods (104) are fixedly mounted on both sides of the top of the power-carrying clamp (103) symmetrically via an insulating pad; threaded barrels (105) are threadedly connected to the outer surfaces of the two threaded rods (104); the top ends of the two threaded barrels (105) penetrate to the top of the connecting plate (5) via bearings and are fixedly mounted with driving wheels (106); the two driving wheels (106) are connected via a belt drive; and the output end of the driving motor (101) is fixedly mounted on the top of the driving wheel (106).

3. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 1, characterized in that: The transmission assembly (300) comprises a transverse plate (301) fixedly mounted between one side of two baffles (4); one side of the transverse plate (301) is symmetrically fixedly mounted with a second electric push rod (302); the output ends of the two second electric push rods (302) are fixedly mounted with a same insulating support plate (303); two sides of the insulating support plate (303) are symmetrically fixedly mounted with T-shaped slide bars (304); the inner sides of the two baffles (4) are provided with T-shaped slide grooves (305) matching the T-shaped slide bars (304); and a sheet material is placed on the insulating support plate (303).

4. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 1, characterized in that: The T-shaped slide rail (204) matches the insulating T-shaped slide block (207), the connecting column 1 (203) matches the limiting slide groove (206) at the top of the transmission rod (205), and the connecting column 2 (208) matches the limiting slide groove (206) at the bottom of the transmission rod (205).

5. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 1, characterized in that: The transmission rod (205) is arranged in an L shape, the connecting column 1 (203) is slidably connected in the limiting sliding groove (206) at the top of the transmission rod (205), and the connecting column 2 (208) is slidably connected in the limiting sliding groove (206) at the bottom of the transmission rod (205).

6. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 1, characterized in that: The connecting pipe 1 (211), the connecting pipe 2 (212), the water outlet pipe (213) and the water inlet pipe (214) are all provided with a pump body (7).

7. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 1, characterized in that: A refrigerator is provided between the water outlet pipe (213) and the water inlet pipe (214).

8. The device for integral self-resistance heating and progressive forming of sheet materials according to claim 2, characterized in that: The two powered clamps (103) and the sheet material are connected to a direct current power source, and a current loop is formed between the two powered clamps (103), the direct current power source, and the sheet material.

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