A leak-proof soldering device and its usage method

Abstract

The present invention provides a leak-proof welding device and a method for using the same, which includes a frame and a cargo box. The frame is a rectangular frame, and a rectangular frame is partitioned in the upper part of the frame. The cargo box is arranged within the upper rectangular frame of the frame. A conveying shaft is arranged at the bottom of the cargo box on the frame. A plurality of the conveying shafts are arranged side by side. A top cover is arranged at the top of the frame. The top cover is connected to the frame through a hinge. A conveying door is arranged on one side wall of the frame. The top of the conveying door is connected to the frame through a hinge. An optoelectronic protector is arranged on one side wall of the frame adjacent to the conveying door. The optoelectronic protector is arranged vertically. A vertical slideway is arranged on the side wall of the frame where the optoelectronic protector is located. The frame is connected to a push-pull plate through the slideway. The bottom of the push-pull plate is connected to a pressure cylinder through a screw. The pressure cylinder is fixed to the frame through a screw. The optoelectronic protector and the pressure cylinder are connected to a programmable logic controller through wires. The programmable logic controller is connected to a projection welder and a detection tooling through wires. The beneficial effect of the present invention is to prevent leaky welding and ensure the welding effect.

Description

Technical Field

[0001] The present invention belongs to the field of machinery, and particularly relates to a leak-proof welding device and a method for using the same. Background Art

[0002] In the current automotive manufacturing field, the welding process is one of the two major pillar processes. The projection welding process among them can ensure good joint quality, few auxiliary processes, no need for filling materials, high production efficiency and low welding cost, and thus occupies an important position. For the projection welding process, it mostly uses standard parts to cooperate with stamping single parts. After the projections on the standard parts are overlapped with the stamping single parts, the two parts are welded through resistance heat to form an assembled part, which serves various automotive productions.

[0003] However, with the diversification of automotive design and development and the complexity of the structure, each stamping single part also needs to cooperate with multiple bolts and nuts. After multiple bolts and nuts are projection welded to the stamping single part, the usage requirements can be met. Therefore, preventing leak welding during the projection welding process is very important. Summary of the Invention

[0004] The purpose of the present invention is to provide a leak-proof welding device and a method for using the same that can prevent leak welding and ensure the welding result, and is particularly suitable for projection welding work.

[0005] The technical solution of the present invention is: a leak-proof welding device, including a frame and a cargo box. The frame is a rectangular frame. A rectangular frame is separated in the upper part of the frame. The cargo box is arranged in the upper rectangular frame of the frame. A conveying shaft is arranged at the bottom of the frame under the cargo box. A plurality of conveying shafts are arranged side by side. A top cover is arranged on the top of the frame. A transparent plate is arranged on the side wall of the frame. The top cover is connected to the frame through a hinge. A conveying door is arranged on one side wall of the frame. The top of the conveying door is connected to the frame through a hinge. An optoelectronic protector is arranged on one side wall of the frame adjacent to the conveying door. The optoelectronic protector is arranged vertically. A vertical slideway is arranged on the side wall of the frame where the optoelectronic protector is located. The frame is connected to a push-pull plate through the slideway. The bottom of the push-pull plate is connected to a pressure cylinder through screws. The pressure cylinder is fixed to the frame through screws.

[0006] The optoelectronic protector and the pressure cylinder are connected to a programmable logic controller through wires. The programmable logic controller is connected to a projection welder and a detection tooling through wires.

[0007] The detection tooling includes a base and support columns. The base is a hollow platform, and support columns are welded on the upper surface of the base. The support columns are hollow rectangular tubes. An fixing plate is arranged on one side of the support column, and a sliding plate is arranged on the side opposite to the support column. A 90° bend is arranged at the top of the fixing plate, and a 90° bend is arranged at the top of the sliding plate. The bends of the fixing plate and the sliding plate both face away from the support column. Vertical strip-shaped through holes are arranged at the centers of the fixing plate and the sliding plate. The sliding plate and the fixing plate are fixed to the side of the support column by screws and through holes. A distance detector is arranged on the lower surface of the bent part of the sliding plate, and the distance detector is connected to a programmable logic controller through a wire.

[0008] Further, an interlock signal connection is provided between the programmable logic controller and the projection welder.

[0009] Further, the pressure cylinder adopts a pneumatic cylinder.

[0010] Further, the optoelectronic protector includes a light emitter and a light receiver.

[0011] Further, the programmable logic controller adopts X3G-60MR.

[0012] A usage method of the anti-leakage welding device: set the number of welding points on the programmable logic controller; start normal welding, and the counter records the actual number of welding points; after welding is completed, place the part in the fixing plate and the sliding plate of the detection tooling for clamping, and the programmable logic controller compares the actual number of welding points with the set number of welding points; when the actual number of welding points is less than the set number of welding points or the detection tooling does not feedback a qualified signal, the pressure cylinder maintains its original state, and the product cannot be put into the cargo box. When the actual number of welding points is equal to the set number of welding points and the detection tooling feedbacks a qualified signal, the programmable logic controller controls the pressure cylinder to drive the push-pull plate to move, and the product can be put into the cargo box; after the product is put into the cargo box, the optoelectronic protector has no occlusion, and the programmable logic controller controls the pressure cylinder to drive the push-pull plate back to its original position to start the next welding count.

[0013] The advantages and positive effects of the present invention are:

[0014] 1. Due to the adoption of the optoelectronic protector, after the worker puts in the workpiece, the push-pull plate will start to close only when the hand leaves the range of the machine frame, avoiding pinching the staff when closing the push-pull plate and protecting the safety of the staff.

[0015] 2. Due to the connection of the programmable logic controller to the projection welder and the pressure cylinder, the push-pull plate can be opened to put in the workpiece only after completing the specified welding work, otherwise the workpiece cannot be put in, avoiding the situation of leakage welding of the workpiece caused by human factors and resulting in the mixing of defective products, and ensuring the qualification rate and quality of the overall product.

[0016] 3. Since the conveying door and the top cover cooperate, the cargo box can be conveniently conveyed and taken out, and the closure of the box body can be maintained to prevent external pollutants from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the working flow chart of the present invention;

[0018] Figure 2 is the structural schematic diagram of the present invention;

[0019] Figure 3 is the schematic diagram of the detection tooling of the present invention.

[0020] In the figure:

[0021] 1. Frame 2. Conveying door 3. Top cover

[0022] 4. Conveying shaft 5. Push-pull plate 6. Cargo box

[0023] 7. Pressure cylinder 8. Photoelectric protector 9. Base

[0024] 10. Support column 11. Fixed plate 12. Sliding plate

[0025] 13. Screw DETAILED DESCRIPTION OF THE INVENTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings.

[0027] As Figure 1-2 shown:

[0028] An anti-leakage welding device includes a frame 1 and a cargo box 6. The frame 1 is a rectangular frame, and a rectangular frame is separated in the upper part of the frame 1. The cargo box 6 is arranged in the upper rectangular frame of the frame 1. A conveying shaft 4 is arranged at the bottom of the cargo box 6 on the frame 1. A plurality of the conveying shafts 4 are arranged side by side. A top cover 3 is arranged at the top of the frame 1. A transparent plate is arranged on the side wall of the frame 1. The top cover 3 is connected to the frame 1 through a hinge. A conveying door 2 is arranged on one side wall of the frame 1. The top of the conveying door 2 is connected to the frame 1 through a hinge. A photoelectric protector 8 is arranged on one side wall of the frame 1 adjacent to the conveying door 2. The photoelectric protector 8 is arranged vertically. A vertical slideway is arranged on the side wall of the frame 1 where the photoelectric protector 8 is located. The frame 1 is connected to a push-pull plate 5 through the slideway. The bottom of the push-pull plate 5 is connected to a pressure cylinder 7 through a screw. The pressure cylinder 7 is fixed on the frame 1 through a screw.

[0029] The photoelectric protector 8 and the pressure cylinder 7 are connected to a programmable logic controller through wires. The programmable logic controller is connected to a projection welder and a detection tooling through wires.

[0030] The detection tooling includes a base 9 and a support column 10. The base 9 is a hollow platform, and the support column 10 is welded to the upper surface of the base 9. The support column 10 is a hollow rectangular tube. A fixing plate 11 is arranged on one side of the support column 10, and a sliding plate 12 is arranged on the side opposite to the support column 10 of the fixing plate 11. A 90° bend is provided at the top of the fixing plate 11, and a 90° bend is provided at the top of the sliding plate 12. The bends of the fixing plate 11 and the sliding plate 12 both face away from the support column 10. Vertical strip-shaped through holes are provided at the centers of the fixing plate 11 and the sliding plate 12. The sliding plate 12 and the fixing plate 11 are fixed to the side of the support column 10 by screws 13 and the through holes. A distance detector is arranged on the lower surface of the bend of the sliding plate 12, and the distance detector is connected to a programmable logic controller through a wire.

[0031] The programmable logic controller and the projection welder are interlocked and signal-connected.

[0032] The pressure cylinder 7 uses a pneumatic cylinder.

[0033] The optoelectronic protector 8 includes a light emitter and a light receiver.

[0034] The programmable logic controller uses an X3G-60MR.

[0035] A usage method of the leak-proof welding device: Set the number of welding points on the programmable logic controller; start normal welding, and the counter records the actual number of welding points; after welding is completed, place the part in the fixing plate 11 and the sliding plate 12 of the detection tooling for clamping, and the programmable logic controller compares the actual number of welding points with the set number of welding points; when the actual number of welding points is less than the set number of welding points or the detection tooling does not feedback a qualified signal, the pressure cylinder 7 maintains its original state, and the product cannot be put into the cargo box 6. When the actual number of welding points is equal to the set number of welding points and the detection tooling feedbacks a qualified signal, the programmable logic controller controls the pressure cylinder 7 to drive the push-pull plate 5 to move, and the product can be put into the cargo box 6; after the product is put into the cargo box 6, the optoelectronic protector 8 has no obstruction, and the programmable logic controller controls the pressure cylinder 7 to drive the push-pull plate 5 back to its original position to start the next welding count.

[0036] The working process of this example:

[0037] When carrying out welding work, first set the number of welding points of the product on the programmable logic controller, and then the staff start to work normally. The programmable logic controller counts each time a welding is performed. After welding is completed, place the part into the inspection tooling. Clamp the part by bending the fixed plate 11 and the sliding plate 12, and then perform length detection through the distance detector. When the actual number of welding points is less than the set number of welding points or the distance detector does not feedback a qualified signal, the pressure cylinder 7 remains unchanged. When the actual number of welding points is equal to the set number of welding points and the distance detector feedbacks a qualified signal, the programmable logic controller transmits a signal to the pressure cylinder 7, and the pressure cylinder 7 drives the push-pull plate 5 to move, thus opening the placement opening. After the staff put the product into the cargo box 6, when the hand leaves the frame 1 and the photoelectric protector 8 signals that there is no obstacle, the programmable logic controller immediately transmits a signal to control the pressure cylinder 7 to drive the push-pull plate 5 to return to its original state and close the product placement opening. When all products are processed, the external motor can be started to drive the conveying shaft 4 to rotate, thereby driving the cargo box 6 onto the conveyor belt of the product. The top cover 3 can put the empty cargo box 6 from above without affecting the work of other components. Record the number of welds through the feedback of the projection welder to prevent missed welding. When there is missed welding, the window for placing goods cannot be opened, ensuring the welding quality of each good. And there is a photoelectric protector 8 at the placement opening, which can protect the safety of employees and prevent the staff from being pinched when closing the push-pull plate 5.

[0038] The above has described in detail an embodiment of the present invention, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A leak-proof welding device, comprising a frame (1) and a cargo box (6). It is characterized in that: The frame (1) is a rectangular frame. A rectangular frame is partitioned in the upper part of the frame (1). The cargo box (6) is arranged in the upper rectangular frame of the frame (1). A conveying shaft (4) is arranged at the bottom of the cargo box (6) of the frame (1). A plurality of the conveying shafts (4) are arranged side by side. A top cover (3) is arranged on the top of the frame (1). A transparent plate is arranged on the side wall of the frame (1). The top cover (3) is connected to the frame (1) through a hinge. A conveying door (2) is arranged on one side wall of the frame (1). The top of the conveying door (2) is connected to the frame (1) through a hinge. An optoelectronic protector (8) is arranged on one side wall of the frame (1) adjacent to the conveying door (2). The optoelectronic protector (8) is arranged vertically. A vertical slideway is arranged on the side wall of the frame (1) where the optoelectronic protector (8) is located. The frame (1) is connected to a push-pull plate (5) through the slideway. The bottom of the push-pull plate (5) is connected to a pressure cylinder (7) through a screw. The pressure cylinder (7) is fixed on the frame (1) through a screw. The optoelectronic protector (8) and the pressure cylinder (7) are connected to a programmable logic controller through wires. The programmable logic controller is connected to a projection welder and a detection tooling through wires. The detection tooling comprises a base (9) and a support column (10). The base (9) is a hollow platform. The support column (10) is welded on the upper surface of the base (9). The support column (10) is a hollow rectangular pipe. A fixing plate (11) is arranged on one side of the support column (10). A sliding plate (12) is arranged on the side opposite to the support column (10) of the fixing plate (11). The top of the fixing plate (11) is provided with a 90° bend. The top of the sliding plate (12) is provided with a 90° bend. The bends of the fixing plate (11) and the sliding plate (12) both face away from the support column (10). Vertical strip-shaped through holes are arranged at the centers of the fixing plate (11) and the sliding plate (12). The sliding plate (12) and the fixing plate (11) are fixed on the side of the support column (10) through screws (13) and the through holes. A distance detector is arranged on the lower surface of the bend of the sliding plate (12). The distance detector is connected to the programmable logic controller through a wire.

2. A leak-proof welding device according to claim 1, It is characterized in that: The programmable logic controller and the projection welder are connected with interlocking signals.

3. A leak-proof welding device according to claim 1, It is characterized in that: The pressure cylinder (7) adopts a pneumatic cylinder.

4. A leak-proof welding device according to claim 1, It is characterized in that: The optoelectronic protector (8) comprises a light emitter and a light receiver.

5. A leak-proof welding device according to claim 1, It is characterized in that: The programmable logic controller adopts X3G-60MR.

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