CN103264260A - Processing technology and mold of electrical oil heater seal cover spot-welding part - Google Patents

Abstract

A processing technology for spot welded parts covered with electric heating oil. When the cold-rolled plate per unit length passes through the transmission equipment and enters a tapping position of the tapping equipment, the transmission equipment stops intermittently. The tapping rotor group falls together with the upper die base. One tapping rotor in the tapping rotor group rotates in a turning hole on the cold-rolled plate per unit length. After the tapping is completed, the tapping rotor of the tapping equipment The head group rises together with the upper die base. The beneficial effect of the processing technology of the electric heating oil filler capping spot weldment provided by the present invention is: through the processing technology of the present invention to manufacture the electric heating oil filler sealing spot weldment, its tapping is carried out synchronously with the forming process, which greatly improves the product quality. Production efficiency, compared with manual tapping in traditional processing technology, shortens the production line, reduces labor input, and improves the pass rate of products at the same time.

Description

A processing technology and mold for spot welded parts of electric heating oil base

technical field

The invention relates to a processing technology and a mold for a spot welded part covered with electric heating oil.

Background technique

The electric oil heater is also called the oil-filled heater. The appearance is similar to that of the radiator. It is a safe and reliable space heater. It mainly includes a radiator composed of multiple radiators, a control panel and casters. The current electric heater The oil control panel is installed on the front end of the radiator through a spot weldment. The spot weldment is welded on the radiator. Most of the control panel is fixed on the spot weldment by screws. Therefore, the spot weldment needs to be tapped in advance when installing. The traditional The technical process is to produce the spot weldment body through the mold first, and then manually tap the thread on the spot weldment body by workers. The production line is long, and the semi-finished products need to be transported many times, and most of the spot weldments have two holes. Tapping requires workers to operate twice in a row, which is inefficient. At the same time, the risk of manual tapping is high, and the product scrap rate is high, so that the production cost is greatly increased.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a processing technology for sealing spot welding parts with electric heating oil.

The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a processing mold for sealing spot welding parts with electric heating oil.

According to the processing technology of the electric heating oil filler capping spot weldment provided by the present invention, mainly comprises the following steps:

(1) The cold-rolled sheet is intermittently conveyed to the stamping continuous die at a certain speed, so that the cold-rolled sheet within a fixed unit length passes through the dies intermittently in turn;

(2) When the cold-rolled plate enters the stamping continuous mold and pauses intermittently, the upper mold base is lowered and docked with the lower mold base, and the cold-rolled plate between the concave die and the punch is stamped;

(3) The cold-rolled plate within a fixed unit length relies on the transmission equipment of the stamping continuous mold, and intermittently passes through the cutting die, shallow bending die, deep bending die, punching die, turning die, tapping equipment and Cut off the mold to form a spot weldment;

(4) In step (3), when the cold-rolled sheet of unit length passes through the tapping equipment, it stops once at two adjacent tapping positions in the tapping equipment. The specific process is as follows: When the cold-rolled plate enters a tapping position of the tapping equipment through the conveying equipment, the conveying equipment stops intermittently, the tapping rotor group on the tapping equipment falls together with the upper die base, and one of the tapping rotor groups taps The rotor rotates in a turning hole on the cold-rolled plate of unit length. After the tapping is completed, the tapping rotor group of the tapping equipment rises together with the upper die base, and the cold-rolled plate of unit length enters the tapping through the conveying equipment. When the equipment is at another tapping position, the transmission equipment stops intermittently, the tapping rotor group of the tapping equipment falls together with the upper die base, and the other tapping rotor group in the tapping rotor group is placed on the unit length cold-rolled plate After the tapping is completed, the tapping rotor group of the tapping equipment rises together with the upper die base, and the cold-rolled sheet per unit length is sent out of the tapping equipment by the conveying equipment and enters the cutting die.

The processing technology of the electric heating oil seal capping spot weldment provided by the present invention also adopts the following subsidiary technical scheme:

Before the cold-rolled plate intermittently enters the cutting die at a certain speed, the fixed unit length of the cold-rolled plate is punched with a positioning hole, and the positioning hole is located between the two-point weldment pieces pre-punched on the cold-rolled plate , the continuous stamping die is provided with a positioning boss that matches the positioning hole.

The positioning holes are punched out by positioning punching equipment, and the positioning punching equipment is located in the stamping continuous die.

When the cold-rolled plate passes through the cutting die, the cutting die punches away part of the corner material between the front and rear adjacent two-point weldment sheets, leaving the connection between the front and rear adjacent two-point weldment sheets. The rear end of the weldment sheet is cut and the front end of the post-spot weldment sheet is cut, and the positioning holes are located on the connecting part.

The cold-rolled sheet that has passed through the cutting die is sent to the shallow bending die through the conveying equipment, and the shallow bending die punches the outer edge of the spot weldment sheet into shape and at the same time folds the inner edge of the spot weldment sheet Shallow bends at the folded edges.

The cold-rolled sheet that has passed through the shallow bending die is sent to the deep bending die through the conveying equipment, and the deep bending die stamps the shallowly bent inner edge of the spot weldment sheet to make it deep bend.

The cold-rolled sheet that has passed through the deep bending die is sent to the punching die through the conveying equipment, and the two punching needles on the punching die punch the spot weldment sheet at the same time to punch out two small holes.

The cold-rolled plate that has passed through the punching die is sent to the turning die through the conveying equipment, and the turning die punches the two small holes on the spot weldment sheet to form a flanging.

The cold-rolled sheet passed through the tapping equipment is sent to the cutting die through the conveying equipment, and the cutting die punches away the connection between the front and rear adjacent two-point welded pieces, so that the front and rear adjacent two-point welded pieces are separated, and the front end The spot weldment sheet is separated from the cold-rolled plate to form a formed spot weldment.

According to the processing mold of electric heating oil filling spot welding parts provided by the present invention, it comprises a stamping continuous mold and conveying equipment located on said stamping continuous mold, said stamping continuous mold comprises a cutting mold arranged in sequence, a shallow bending The die, the depth bending die, the punching die, the turning die and the cutting die also include a tapping device, and the tapping device is located between the turning die and the cutting die.

The processing mold of the electric heating oil seal capping spot weldment provided by the present invention also adopts the following subsidiary technical scheme: it also includes positioning punching equipment, and the positioning punching equipment is located between the cutting die and the feeding end, and the positioning The punching equipment is a positioning punch.

Compared with the prior art, the processing technology of the electric heating oil filler capping spot weldment provided by the present invention has the following advantages: the electric heating oil filler sealing spot weldment is manufactured through the processing technology of the present invention, and its tapping and its forming process are carried out synchronously , which greatly improves the production efficiency of the product. Compared with manual tapping in the traditional processing technology, the production line is shortened, the labor input is reduced, and the qualified rate of the product is improved at the same time.

Compared with the prior art, the processing mold of the electric heating oil filler capping spot weldment provided by the present invention has the following advantages: by setting synchronously working tapping equipment in the stamping continuous die, the electric heating oil filler sealing spot weldment Forming and tapping are completed in the same mold, which greatly improves the production efficiency of the product, shortens the production line, reduces labor input, and improves the qualified rate of the product at the same time.

Description of drawings

Fig. 1 is a process flow diagram of the present invention.

Fig. 2 is a schematic diagram of the stamping continuous die of the present invention.

Fig. 3 is a structural schematic view of the stamping continuous die of the present invention when it is opened.

Fig. 4 is a structural schematic view of the stamping continuous mold of the present invention when it is closed.

Fig. 5 is a structural diagram of the tapping device in the present invention.

Fig. 6 is a schematic diagram of the shallow bending die in the stamping continuous die of the present invention when stamping the spot weldment sheet.

Fig. 7 is a schematic diagram of the deep bending die in the stamping continuous die of the present invention when stamping the spot weldment sheet.

Fig. 8 is a structural diagram of the spot welding parts covered by the electric heating oil filler in the present invention.

Fig. 9 is a sectional view of A-A in Fig. 5 .

Detailed ways

Referring to Fig. 1 to Fig. 7, according to the processing technology of the electric heating oil filler capping spot weldment provided by the present invention, it mainly includes the following steps:

(1) The cold-rolled sheet is intermittently conveyed to the stamping continuous die at a certain speed, so that the cold-rolled sheet within a fixed unit length passes through the dies intermittently in turn;

(2) When the cold-rolled plate enters the stamping continuous mold and pauses intermittently, the upper mold base 11 descends and docks with the lower mold base 12, and stamps the cold-rolled plate between the die and the punch;

(3) The cold-rolled plate within a fixed unit length relies on the transmission equipment of the stamping continuous mold, and intermittently passes through the cutting die 21, the shallow bending die 22, the deep bending die 23, the punching die 24, and the turning die 25 , tapping equipment 26 and cutting die 27 form spot weldment 4;

(4) In step (3), when the cold-rolled sheet of unit length passes through the tapping device 26, two adjacent tapping positions in the tapping device 26 stop once respectively. The specific process is as follows: after passing through the hole turning die 25 When the cold-rolled plate of the unit length enters a tapping position 261 of the tapping device 26 through the conveying device, the conveying device stops intermittently, and the tapping rotary head group on the tapping device 26 falls together with the upper die base 11, and the tapping rotary A tapping rotor in the head group rotates in a turning hole on the cold-rolled plate per unit length. After the tapping is completed, the tapping rotor group of the tapping device 26 rises together with the upper die base 11, and the unit length When the cold-rolled plate enters another tapping position 262 of the tapping device 26 through the conveying device, the conveying device stops intermittently, and the tapping rotary head group of the tapping device 26 falls together with the upper die base 11, and the tapping rotary head group in the tapping device 26 falls together. Another tapping rotor rotates in another turning hole on the unit-length cold-rolled plate. After the tapping is completed, the tapping rotor group of the tapping device 26 rises together with the upper die base 11, and the unit-length cold-rolled plate The conveying device sends out the tapping device 26 and enters the cutting die 27 .

Referring to Fig. 2 and Fig. 3, according to the above-mentioned embodiment of the processing technology of the electric heating oil filler sealing spot weldment of the present invention, before the cold-rolled plate enters the cutting die 21 intermittently at a certain speed, the cold-rolled plate with a fixed unit length A positioning hole 31 is punched, and the positioning hole is located between the pre-punched two spot weldment pieces 32 formed on the cold-rolled plate, and a positioning boss matching the positioning hole 31 is provided in the stamping continuous die.

Referring to Fig. 2 and Fig. 3, according to the above-mentioned embodiment of the processing technology of the electric heating oil filler sealing spot weldment of the present invention, the positioning hole 31 is punched out by the positioning punching device 28, and the positioning punching device 28 is located in the Stamping continuous die.

Referring to Fig. 1 and Fig. 2, according to the above-mentioned embodiment of the processing technology of the electric heating oil filler sealing spot weldment of the present invention, when the cold-rolled plate passes through the cutting die 21, the cutting die 21 flushes away the front and rear adjacent two spot weldment sheet bodies 32 Part of the corner material between them, leaving the connecting portion 33 between the front and back adjacent two spot weldment sheet bodies 32, this process completes the rear end cutting of the front spot weldment sheet body 32 and the front end of the rear spot weldment sheet body 32 After cutting, the positioning hole 31 is located on the connecting portion 33 .

Referring to Fig. 1, Fig. 2 and Fig. 6, according to the above-mentioned embodiment of the processing technology of the electric heating oil filler sealing spot weldment of the present invention, the cold-rolled plate passing through the cutting die 21 is sent to the shallow bending die 22 through the conveying equipment, The shallow bending die 22 will shallowly bend the inner flange of the spot-welding piece body 32 while stamping the outer edge of the spot-welding piece body 32 into shape.

Referring to Fig. 1, Fig. 2 and Fig. 7, according to the above-mentioned embodiment of the processing technology of the spot welded parts covered with electric heating oil, the cold-rolled plate passing through the shallow bending die 22 is sent to the deep bending die through the conveying equipment 23. The deep bending die 23 stamps the shallowly bent inner edge of the spot weldment sheet body 32 to deeply bend it.

Referring to Fig. 1 and Fig. 2, according to the above-mentioned embodiment of the processing technology of the electric heating oil filler capping spot weldment of the present invention, the cold-rolled plate that passes through the deep bending die 23 is sent to the punching die 24 through the conveying equipment, and the punching die Two punch needles on the 24 punch out two apertures to the spot weldment sheet body 32 stampings simultaneously.

Referring to Fig. 1 and Fig. 2, according to the above-mentioned embodiment of the processing technology of the spot weldment of electric heating oil filling cap of the present invention, the cold-rolled plate that will pass through the punching die 24 is sent to the punching die 25 by the conveying equipment, and the punching die 25 Punch the two small holes on the spot weldment sheet body 32 to form a flanging.

Referring to Fig. 1 and Fig. 2, according to the above-mentioned embodiment of the processing technology of the electrothermal oil filler sealing spot weldment of the present invention, the cold-rolled plate passing through the tapping device 26 is sent to the cutting die 27 by the conveying device, and the cutting die 27 is washed away The connection part 33 between two adjacent spot weldment sheets 32 separates the front and rear adjacent spot weldment sheets 32, and the spot weldment sheet 32 at the front end is separated from the cold-rolled plate to form a formed spot weldment 4.

Referring to Fig. 8 and Fig. 9, according to the above-mentioned embodiment of the processing technology of the electric heating oil filler sealing spot weldment of the present invention, the electric heating oil heating sealing spot welding piece 4 produced by the processing technology of the present invention includes a sheet-like body, so that The fixed unit area in the middle of the body is the first connecting part 41, and the two sides are bent upwards to form a supporting part 42. The angle between the supporting part 42 and the first connecting part 41 is a right angle, and the two supporting parts 42 The upper part of the first connecting portion 41 is bent outwards to form the second connecting portion 43 respectively, and the angle between the second connecting portion 43 and the supporting portion 42 is a right angle. The first connecting plate 41 is parallel to the second connecting portion 43 . The angle between the support portion 42 and the first connecting portion 41 is produced by the inner folding process in the above process; the angle between the second connecting portion 43 and the supporting portion 42 The angle is produced by the processing process of the outer flanging in the above-mentioned process.

Through the processing technology of the present invention to manufacture electric heating oil seal capping spot weldments, its tapping is carried out synchronously with its forming process, which greatly improves the production efficiency of the product. Compared with manual tapping in traditional processing technology, it shortens the production line and reduces Reduced labor input, while improving the pass rate of products.

Through this processing technology, the processing of the electric heating oil cover spot weldment is completed, and the electric heating oil cover spot weldment that has completed the above-mentioned various processes can be directly installed on the oil heat sink.

Referring to Fig. 1 to Fig. 7, according to the embodiment of the processing mold of the electric heating oil filler capping spot weldment provided by the present invention, it includes a stamping continuous mold and a conveying device located on the stamping continuous mold, and the stamping continuous mold includes sequentially arranged Cloth cutting die 21, shallow bending die 22, deep bending die 23, punching die 24, turning over hole die 25 and cutting die 27 also include tapping device 26, and described tapping device 26 is positioned at turning over hole die 25 and between the cutting die 27.

Referring to Fig. 2 and Fig. 3, according to the above-mentioned embodiment of the processing mold of the electric heating oil filler capping spot weldment of the present invention, it also includes a positioning punching device 28, and the positioning punching device 28 is located between the cutting die 21 and the feeding material. Between the ends, the positioning punching device 28 is a positioning punch.

The present invention sets synchronously working tapping equipment 26 in the stamping continuous mold, so that the forming and tapping of the spot weldment of the electric heating oil seal can be completed in the same mold, which greatly improves the production efficiency of the product and shortens the production line. Reduced labor input, while improving the qualified rate of products.

Claims (11)

1. A processing technology for electric heating oil seal cap spot weldment, characterized in that: mainly comprising the following steps: (1) The cold-rolled sheet is intermittently conveyed to the stamping continuous die at a certain speed, so that the cold-rolled sheet within a fixed unit length passes through the dies intermittently in turn; (2) When the cold-rolled plate enters the stamping continuous mold and pauses intermittently, the upper mold base is lowered and docked with the lower mold base, and the cold-rolled plate between the concave die and the punch is stamped; (3) The cold-rolled plate within a fixed unit length relies on the transmission equipment of the stamping continuous mold, and intermittently passes through the cutting die, shallow bending die, deep bending die, punching die, turning die, tapping equipment and Cut off the mold to form a spot weldment; (4) In step (3), when the cold-rolled sheet of unit length passes through the tapping equipment, it stops once at two adjacent tapping positions in the tapping equipment. The specific process is as follows: When the cold-rolled plate enters a tapping position of the tapping equipment through the conveying equipment, the conveying equipment stops intermittently, the tapping rotor group on the tapping equipment falls together with the upper die base, and one of the tapping rotor groups taps The rotor rotates in a turning hole on the cold-rolled plate of unit length. After the tapping is completed, the tapping rotor group of the tapping equipment rises together with the upper die base, and the cold-rolled plate of unit length enters the tapping through the conveying equipment. When the equipment is at another tapping position, the transmission equipment stops intermittently, the tapping rotor group of the tapping equipment falls together with the upper die base, and the other tapping rotor group in the tapping rotor group is placed on the unit length cold-rolled plate After the tapping is completed, the tapping rotor group of the tapping equipment rises together with the upper die base, and the cold-rolled sheet per unit length is sent out of the tapping equipment by the conveying equipment and enters the cutting die. 2. The processing technology of spot weldment capped with electric heating oil according to claim 1, characterized in that: before the cold-rolled plate intermittently enters the cutting die at a certain speed, the cold-rolled plate with a fixed unit length is punched There are positioning holes, and the positioning holes are located between the pre-punched and formed two-point weldment sheets on the cold-rolled plate, and the punching continuous die is provided with positioning bosses that match the positioning holes. 3. The processing technology of spot welding parts capped with electric heating oil according to claim 2, characterized in that: the positioning holes are punched out by positioning punching equipment, and the positioning punching equipment is located in the stamping continuous mold . 4. The processing technology of spot weldment capped with electric heating oil according to claim 2, characterized in that: when the cold-rolled plate passes through the cutting die, the cutting die punches away the part between the front and rear adjacent two spot weldment sheets Corner material, leaving the connection between the front and rear adjacent two point weldment pieces, this process completes the rear end cutting of the front spot weldment piece and the front end cutting of the rear spot weldment piece, and the positioning hole is located on the connection part . 5. The processing technology of spot weldment capped with electric heating oil according to claim 1, characterized in that: the cold-rolled plate passing through the cutting die is sent to the shallow bending die through the transmission equipment, and the shallow bending die will The outer folded edge of the spot welded piece body is punched into shape, and the inner folded edge of the spot welded piece body is shallowly bent. 6. The processing technology of spot welded parts covered with electric heating oil according to claim 1, characterized in that: the cold-rolled sheet passing through the shallow bending die is sent to the deep bending die through the transmission equipment, and the deep bending die The inner edge of the spot weldment sheet body that has been shallowly bent is punched to make it deeply bent. 7. The processing technology of spot welded parts covered with electric heating oil according to claim 1, characterized in that: the cold-rolled sheet that has passed through the deep bending die is sent to the punching die through the transmission equipment, and the two parts on the punching die The punching needle punches the sheet body of the spot weldment at the same time, punching out two small holes. 8. The processing technology of spot welded parts capped with electric heating oil according to claim 1, characterized in that: the cold-rolled plate passing through the punching die is sent to the punching die through the conveying equipment, and the punching die is aligned with the spot weldment. The two small holes on the sheet are punched to form a flanging. 9. The processing technology of spot weldment capped with electric heating oil according to claim 1, characterized in that: the cold-rolled plate passing through the tapping equipment is sent to the cutting die through the conveying device, and the cutting die punches two adjacent front and rear ends. The connecting part between the spot weldment pieces separates the front and rear adjacent spot weldment pieces, and the spot weldment piece at the front end is separated from the cold-rolled plate to form a formed spot weldment. 10. A processing mold for spot welded parts capped with electric heating oil, comprising a stamping continuous mold and a transfer device located on the stamping continuous mold, the stamping continuous mold includes a cutting mold and a shallow bending mold arranged in sequence 1. A deep bending die, a punching die, a hole turning die and a cutting die, characterized in that: it also includes a tapping device, and the tapping device is located between the turning die and the cutting die. 11. The processing mold for spot weldment capping with electric heating oil according to claim 10, characterized in that: it also includes a positioning punching device, and the positioning punching device is located between the cutting die and the feeding end, The positioning punching equipment is a positioning punch.

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