Quasi-synchronous laser flexible pneumatic clamping welding tool and sliding structure thereof

Abstract

The utility model relates to the technical field of laser welding, in particular to a quasi-synchronous laser flexible air pressure clamping welding tool and a sliding structure thereof.The quasi-synchronous laser flexible air pressure clamping welding tool comprises a static mold base, a movable mold base opposite to the static mold base and a driving part for driving the movable mold base to get close to the static mold base in a reciprocating mode, and the movable mold base comprises a mold base frame with a hollow interior; the die holder frame is provided with a closed end which is closed on one side opposite to the static die holder and an open end which is opened towards one side of the static die holder, and an elastic flexible film is arranged at the open end of the die holder frame; the quasi-synchronous laser flexible air pressure clamping welding tool comprises a pressure adjusting assembly for pressurizing the space between the die holder frame and the flexible film. The device has the effect of improving the plate environment quality.

Description

Technical Field

[0001] The present application relates to the technical field of laser welding, and in particular to a quasi-synchronous laser flexible pneumatic clamping welding tool and a sliding structure thereof. Background Art

[0002] Quasi-synchronous laser welding technology is a technology that achieves welding based on the control of laser pulse irradiation frequency. In quasi-synchronous laser welding, the irradiation frequency of the laser pulse is controlled to keep the relative speed between the laser beam and the welding workpiece as constant as possible. This method can achieve good position control and is suitable for welding precision components. It is widely used in medical, electronic equipment, automotive and other fields.

[0003] A quasi-synchronous laser welding machine is disclosed in the related art. Figure 1 , including a placement plate 01, on which a lower template 02 is arranged, vertical plates 03 are vertically arranged on the placement plate 01 and on both sides of the lower template 02, sliding rails 04 are vertically arranged on the vertical plates 03, sliding blocks 05 are slidably arranged on the sliding rails 04, an upper template 06 is arranged directly above the lower template 02, and the upper template 06 is mounted on the sliding block 05, and a lifting cylinder 07 for driving the sliding block 05 to rise and fall is arranged on the placement plate 01.

[0004] At present, the templates on quasi-synchronous laser welding machines are generally made of hollow metal materials, transparent acrylic plates or transparent quartz glass.

[0005] Since the upper template is usually made of a metal material with higher hardness, and due to the difference in size and shape of the plate itself, the upper template cannot completely press the plate between it and the lower template, resulting in a cold weld after welding, which is a disadvantage. Utility Model Content

[0006] In order to improve the problem of cold welding of plate materials, the present application provides a quasi-synchronous laser flexible pneumatic clamping welding tool and a sliding structure thereof.

[0007] In the first aspect, the present application provides a quasi-synchronous laser flexible pneumatic clamping welding tool, which adopts the following technical solution:

[0008] A quasi-synchronous laser flexible pneumatic clamping welding tool comprises a static die seat, a movable die seat opposite to the static die seat, and a driving member driving the movable die seat to reciprocate and approach the static die seat, wherein the movable die seat comprises a die seat frame having a hollow interior, wherein the die seat frame has a closed end closed on a side facing away from the static die seat and an open end opened on a side facing the static die seat, wherein the open end of the die seat frame is provided with an elastic flexible film;

[0009] The quasi-synchronous laser flexible pneumatic clamping welding tool comprises a pressure regulating component for charging pressure between the mold base frame and the flexible film.

[0010] By adopting the above technical scheme, after the worker places the plate on the static mold seat, the driving member drives the dynamic mold seat to press on the static mold seat, so that the flexible membrane on the dynamic mold seat is pressed on the plate, and the flexible membrane is deformed. Then the pressure regulating component charges the space between the mold seat frame and the flexible membrane, and the flexible membrane gradually expands and deforms and gradually fits to the surface of the plate, so that the plate between the dynamic mold seat and the static mold seat fits tightly, thereby reducing the possibility of cold welding of the plate. At the same time, it has a good pressing effect for some relatively thin plates or plates with complex welding ribs, which is beneficial to improve the tightness of welding between plates.

[0011] Optionally, the driving member includes a driving cylinder having a piston rod, and a connecting plate is provided between the piston rod and the mold base frame.

[0012] By adopting the above technical solution, workers control the driving cylinder, and the piston rod of the driving cylinder drives the mold base frame close to the static mold base through the connecting plate, and increases the pressing force of the sheet on the static mold base through the flexible membrane on the mold base frame, which is conducive to fixing the sheet on the static mold base.

[0013] Optionally, a sealing ring is provided on the open end of the mold base frame, and the sealing ring is used to press the flexible film against the open end of the mold base frame.

[0014] By adopting the above technical solution, the flexible film can be better pressed on the plate, and the flexible film can be easily replaced.

[0015] Optionally, the pressure regulating assembly includes an air pump and a pressure regulating valve, the pressure regulating valve is provided with a pressure regulating member for regulating its flow rate, one end of the pressure regulating valve is connected to the air pump, and the other end is connected to the hollow interior of the mold base frame.

[0016] By adopting the above technical solution, after the flexible membrane is pressed onto the plate on the static mold base, the worker controls the pressure regulating part on the pressure regulating valve to make the high-pressure air inside the air pump flow into the mold base frame through the pressure regulating valve. The air pressure inside the mold base frame gradually increases, and the flexible membrane is gradually pressed and adhered to the surface of the plate. Then the worker controls the pressure regulating part on the pressure regulating valve to stop charging the mold base frame.

[0017] Optionally, the pressure regulating assembly includes a fine-motion pressure regulating valve for fine-tuning the internal pressure of the mold base frame, one end of the fine-motion pressure regulating valve is connected to the hollow interior of the mold base frame, and the other end is connected to the air pump.

[0018] By adopting the above technical solution, when the worker stops charging the mold base frame with the coarse adjustment knob, the worker controls the micro-motion pressure regulating valve to allow the high-pressure air in the air pump to flow into the mold base frame through the micro-motion pressure regulating valve, and the air with rated pressure is rushed in through the micro-motion pressure regulating valve. Then, the worker stops charging the mold base frame with the micro-motion pressure regulating valve, which is conducive to achieving the effect of precise control of the gas pressure in the mold base frame.

[0019] Optionally, the air pump is only connected to the pressure regulating valve and the micro-motion pressure regulating valve.

[0020] By adopting the above technical solution, the air pump serves as the air source for the pressure regulating valve and the micro-motion pressure regulating valve, which is beneficial to the independence of air pressure regulation.

[0021] Optionally, the closed end of the mold base frame is sealed with a transparent observation panel.

[0022] By adopting the above technical solution, workers can observe the pressing condition of the plates through the observation plate, which is convenient for workers to adjust the pressure regulating valve in time, thereby improving the convenience of workers' operation.

[0023] In the second aspect, the present application provides a sliding structure of a quasi-synchronous laser flexible pneumatic clamping welding tool, which adopts the following technical solution:

[0024] A sliding structure of a quasi-synchronous laser flexible pneumatic clamping welding tool comprises a mounting base plate, a slide rail is arranged on the mounting base plate, a slider is arranged on the static mold seat, and the slider is slidably arranged on the slide rail.

[0025] By adopting the above technical solution, the static die base can be slid forward and backward to facilitate welding of plates with larger volumes.

[0026] Optionally, a locking rod is provided on the mounting base plate, a clamping rod is provided on the static mold seat, and a locking groove for clamping the locking rod is provided on the clamping rod.

[0027] By adopting the above technical solution, when the static mold seat slides to determine the position, the worker uses the clamping rod to clamp the locking rod to prevent the static mold seat from moving.

[0028] In summary, the present application includes at least one of the following beneficial technical effects:

[0029] 1. After the worker places the sheet on the static die seat, the driving part drives the dynamic die seat to press on the static die seat, so that the flexible film on the dynamic die seat is pressed on the sheet, and the flexible film is deformed. Then the pressure regulating component charges the space between the die seat frame and the flexible film, and the flexible film gradually expands and deforms and gradually fits to the surface of the sheet, so that the sheet between the dynamic die seat and the static die seat fits tightly, thereby reducing the possibility of cold welding of the sheet. At the same time, it has a good pressing effect for some relatively thin sheets or sheets with complex welding ribs, which is conducive to improving the tightness of welding between sheets;

[0030] 2. After the flexible film is pressed against the sheet on the static die seat, the worker controls the pressure regulating part on the pressure regulating valve to make the high-pressure air inside the air pump flow into the die seat frame through the pressure regulating valve. The air pressure inside the die seat frame gradually increases, and the flexible film is gradually pressed and adhered to the surface of the sheet. Then the worker controls the pressure regulating part on the pressure regulating valve to stop charging the die seat frame.

[0031] 3. After the worker stops charging the mold base frame with the coarse adjustment knob, the worker controls the micro-motion pressure regulating valve to allow the high-pressure air in the air pump to flow into the mold base frame through the micro-motion pressure regulating valve, and then the air with rated pressure is rushed in through the micro-motion pressure regulating valve. Then the worker stops charging the mold base frame with the micro-motion pressure regulating valve, which is conducive to achieving the effect of precise control of the gas pressure in the mold base frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram in the background technology.

[0033] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application.

[0034] Figure 3 It is a cross-sectional view showing the positional relationship among the air pump, the static mold base and the driving cylinder in the embodiment of the present application.

[0035] Figure 4 This is an enlarged view of part A in the figure.

[0036] Explanation of the reference numerals in the accompanying drawings: 01, placement plate; 02, lower template; 03, vertical plate; 04, sliding rail; 05, sliding block; 06, upper template; 07, lifting cylinder; 1, static mold base; 2, movable mold base; 21, mold base frame; 22, closed end; 23, open end; 24, flexible membrane; 3, driving member; 31, driving cylinder; 32, connecting plate; 4, pressure regulating assembly; 41, air pump; 42, pressure regulating valve; 43, pressure regulating member; 44, micro-pressure regulating valve; 5, sealing ring; 6, observation plate; 7, mounting base; 8, sliding rail; 9, slider; 10, locking rod; 11, clamping rod; 12, locking groove; 13, sealing strip; 14, first hose; 15, second hose; 16, display screen; 17, fine-tuning rod. DETAILED DESCRIPTION

[0037] The present application is further described in detail below in conjunction with the accompanying drawings.

[0038] Example 1

[0039] The embodiment of the present application discloses a quasi-synchronous laser flexible pneumatic clamping welding tool.

[0040] Reference Figure 2 A quasi-synchronous laser flexible pneumatic clamping welding tool includes a static die base 1, a dynamic die base 2 located directly above the static die base 1, and a driving member 3 that drives the dynamic die base 2 to reciprocate and approach the static die base 1. The driving member 3 includes a driving cylinder 31 electrically connected to a control system. The driving cylinder 31 has a piston rod, and a connecting plate 32 is arranged between the piston rod and the die base frame 21.

[0041] Reference Figure 2 The movable mold base 2 includes a mold base frame 21 with a hollow interior. The mold base frame 21 has a closed end 22 that is closed on the side facing away from the static mold base 1 and an open end 23 that is open on the side facing the static mold base 1. The closed end 22 of the mold base frame 21 is sealed with a transparent observation plate 6. The observation plate 6 is bolted to the mold base frame 21. A sealing strip 13 is arranged between the observation plate 6 and the mold base frame 21.

[0042] Reference Figure 2 The open end 23 of the mold base frame 21 is arranged with an elastic flexible membrane 24, and the open end 23 of the mold base frame 21 is arranged with a sealing ring sheet 5. The sealing ring sheet 5 is used to press the flexible membrane 24 against the open end 23 of the mold base frame 21. The sealing ring sheet 5 can be fixed to the open end 23 of the mold base frame 21 by bonding or bolting.

[0043] Reference Figure 2 , Figure 3 and Figure 4 The quasi-synchronous laser flexible pneumatic clamping welding tooling includes a pressure regulating component 4 for charging pressure between the mold base frame 21 and the flexible membrane 24. The pressure regulating component 4 includes an air pump 41 and a pressure regulating valve 42. The pressure regulating valve 42 is provided with a pressure regulating part 43 for adjusting its flow rate. The pressure regulating part 43 can be an adjusting structure such as a knob. One end of the pressure regulating valve 42 is connected to the air pump 41 through a first hose 14, and the other end is connected to the hollow interior of the mold base frame 21 through the first hose 14.

[0044] Reference Figure 2 , Figure 3 and Figure 4The pressure regulating assembly 4 includes a fine-motion pressure regulating valve 44 for fine-tuning the internal pressure of the mold base frame 21. A display screen 16 and a fine-tuning rod 17 are arranged on the fine-motion pressure regulating valve 44. One end of the fine-motion pressure regulating valve 44 is connected to the hollow interior of the mold base frame 21 through the second hose 15, and the other end is connected to the air pump 41 through the second hose 15. The adjustment range of the fine-motion pressure regulating valve 44 is 1 / 10 of that of the pressure regulating valve 42, and the air pump 41 is only connected to the pressure regulating valve 42 and the fine-motion pressure regulating valve 44.

[0045] The implementation principle of Example 1 is as follows: a worker starts the driving cylinder 31 through the control system, and the piston rod of the driving cylinder 31 drives the mold base 2 frame to approach the static mold base 1 through the connecting plate 32. During this process, the flexible membrane 24 on the mold base frame 21 gradually approaches and finally presses against the plate on the static mold base 1. The worker observes the deformation of the flexible membrane 24 through the observation plate 6 and at the same time turns the knob on the pressure regulating valve 42 in the positive direction.

[0046] The high-pressure air inside the air pump 41 flows into the mold frame 21 through the first hose 14 and the pressure regulating valve 42. The air pressure inside the mold frame 21 gradually increases, and the flexible membrane 24 gradually expands and deforms and gradually fits the surface of the plate. The plate gradually fits completely in this process. The worker observes the display screen 16 on the micro-pressure regulating valve 44. When the pressure value on the display screen 16 is close to the designed pressure value.

[0047] The worker reversely turns the knob on the pressure regulating valve 42 to stop charging the mold base frame 21 , and then the worker forwardly turns the fine-tuning rod 17 on the fine-motion pressure regulating valve 44 , and the high-pressure air in the air pump 41 flows into the mold base frame 21 through the second hose 15 and the fine-motion pressure regulating valve 44 .

[0048] The flexible film 24 continues to deform, and the worker observes the change in the pressure value on the display screen 16 until the pressure value on the display screen 16 reaches the designed pressure value. Then the worker reversely rotates the fine-tuning rod 17 to stop pressurizing the mold base frame 21, and finally performs laser welding.

[0049] Example 2

[0050] Reference Figure 2 and Figure 3 Embodiment 2 of the present application discloses a sliding structure of a quasi-synchronous laser flexible pneumatic clamping welding tooling, including a mounting base plate 7, a slide rail 8 bolted to the mounting base plate 7, a slider 9 bolted to the static mold seat 1, the slider 9 is slidably set on the slide rail 8, a locking rod 10 is welded to the mounting base plate 7, a clamping rod 11 is rotatably connected to the static mold seat 1, and a locking groove 12 for clamping the locking rod 10 is opened on the clamping rod 11.

[0051] The implementation principle of Example 2 is: when the volume of the plate is relatively large, a part of the plate is first pressed against the static die seat 1 by the dynamic die seat 2 for laser welding. When the welding is completed, the worker pushes the static die seat 1 to slide through the cooperation of the slide rail 8 and the slider 9, so that the unwelded position of the plate on the static die seat 1 can be pressed and welded by the dynamic die seat 2, thereby realizing the overall welding of the larger plate.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A quasi-synchronous laser flexible pneumatic clamping welding tool, characterized in that: The invention comprises a stationary mold base (1), a movable mold base (2) opposite to the stationary mold base (1), and a driving member (3) driving the movable mold base (2) to reciprocate and approach the stationary mold base (1); the movable mold base (2) comprises a mold base frame (21) having a hollow interior; the mold base frame (21) has a closed end (22) closed on a side facing away from the stationary mold base (1) and an open end (23) open on a side facing the stationary mold base (1); the open end (23) of the mold base frame (21) is provided with an elastic flexible membrane (24); The quasi-synchronous laser flexible pneumatic clamping welding tool comprises a pressure regulating component (4) for charging pressure between a die base frame (21) and a flexible membrane (24).

2. According to claim 1, a quasi-synchronous laser flexible pneumatic clamping welding tool is characterized in that: The driving member (3) comprises a driving cylinder (31), the driving cylinder (31) has a piston rod, and a connecting plate (32) is arranged between the piston rod and the mold base frame (21).

3. The quasi-synchronous laser flexible pneumatic clamping welding tool according to claim 1 is characterized in that: A sealing ring sheet (5) is provided on the open end (23) of the mold base frame (21), and the sealing ring sheet (5) is used to press the flexible film (24) against the open end (23) of the mold base frame (21).

4. The quasi-synchronous laser flexible pneumatic clamping welding tool according to claim 1 is characterized in that: The pressure regulating assembly (4) comprises an air pump (41) and a pressure regulating valve (42), wherein the pressure regulating valve (42) is provided with a pressure regulating member (43) for regulating its flow rate, and one end of the pressure regulating valve (42) is connected to the air pump (41), and the other end is connected to the hollow interior of the mold base frame (21).

5. The quasi-synchronous laser flexible pneumatic clamping welding tool according to claim 4 is characterized in that: The pressure regulating assembly (4) comprises a fine-motion pressure regulating valve (44) for fine-tuning the internal pressure of the mold base frame (21); one end of the fine-motion pressure regulating valve (44) is connected to the hollow interior of the mold base frame (21), and the other end is connected to the air pump (41).

6. The quasi-synchronous laser flexible pneumatic clamping welding tool according to claim 5, characterized in that: The air pump (41) is only connected to the pressure regulating valve (42) and the fine-motion pressure regulating valve (44).

7. The quasi-synchronous laser flexible pneumatic clamping welding tool according to claim 1, characterized in that: The closed end (22) of the mold base frame (21) is sealed with a transparent observation plate (6).

8. A sliding structure for the quasi-synchronous laser flexible pneumatic clamping welding tool as claimed in any one of claims 1 to 7, characterized in that: It comprises a mounting base plate (7), a slide rail (8) is arranged on the mounting base plate (7), a slide block (9) is arranged on the static mold seat (1), and the slide block (9) is slidably arranged on the slide rail (8).

9. The sliding structure of the quasi-synchronous laser flexible pneumatic clamping welding tool according to claim 8 is characterized by: A locking rod (10) is arranged on the installation base plate (7), a clamping rod (11) is arranged on the static mold seat (1), and a locking groove (12) for clamping the locking rod (10) is provided on the clamping rod (11).

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