A pneumatic clamping device for automatic welding using a caliper

Abstract

The present invention relates to the technical field of pipe welding, and in particular to a pneumatic clamping device for automatic welding of a caliper type, comprising: a device body, a clamping assembly and a clamping assembly; the device body is a semi-enclosed structure, one end of the device body has a slide groove, and the other end has a receiving cavity and a convex strip; the clamping assembly comprises a fixed seat and a pressure plate, the fixed seat is installed in the slide groove and can be moved to different positions in the slide groove, and the pressure plate is installed on the inner side of the fixed seat; the clamping assembly comprises a driving mechanism and a clamping block, the driving mechanism is installed in the receiving cavity, the clamping block is installed at the inner end of the driving mechanism, and is slidably installed on the convex strip, and under the action of the driving mechanism, the clamping block presses the workpiece against the pressure plate. The present invention solves the problems of inconvenient operation, low efficiency and poor adaptability in the prior art, and improves the clamping efficiency and stability during welding.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting welding, and in particular to a caliper type pneumatic clamping device for automatic welding. Background Art

[0002] In modern industrial production, welding is a common connection process, which is widely used in the manufacture of various metal structures. Especially in the field of pipeline connection, automatic welding technology is favored for its high efficiency and high quality.

[0003] At present, most of the caliper-type automatic welding clamping devices on the market use manual clamping. Whether it is the form of embracing the welded pipe or the oblique symmetrical form, the operator needs to adjust the scale on the workbench, place the entire set of automatic welding equipment on the welded pipe and manually lock it. Since the equipment weighs about 15-20Kg and requires a large locking force, it is inconvenient for one person to operate it, and usually requires assistance from others. This manual clamping method is not only inefficient, but also prone to errors during operation, affecting the welding quality. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the embodiments of the present invention is to provide a caliper-type pneumatic clamping device for automatic welding, which solves the problems of inconvenient operation, low efficiency and poor adaptability in the prior art, improves the clamping efficiency and stability during the welding process, not only improves the efficiency and quality of the welding operation, but also reduces the difficulty of operation, and has important industrial application value.

[0005] In order to achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A pneumatic clamping device for caliper-type automatic welding comprises: a device body, a clamping assembly and a clamping assembly; the device body is a semi-enclosed structure, one end of the device body has a slide groove, and the other end has a receiving cavity and a convex strip; the clamping assembly comprises a fixed seat and a pressure plate, the fixed seat is installed in the slide groove and can be moved to different positions in the slide groove, and the pressure plate is installed on the inner side of the fixed seat; the clamping assembly comprises a driving mechanism and a clamping block, the driving mechanism is installed in the receiving cavity, the clamping block is installed at the inner end of the driving mechanism, and is slidably installed on the convex strip, and under the action of the driving mechanism, the clamping block presses the workpiece against the pressure plate.

[0007] Optionally, a long slot is provided on the fixing seat, and a bolt passes through the long slot to install the fixing seat on the slide slot of the device body, and the extension direction of the long slot is parallel to the convex strip.

[0008] Optionally, there are two long grooves, which are arranged in parallel, and two bolts are installed in each long groove.

[0009] Optionally, an indicator line is provided on the device body on one side of the slide slot, and a scale line is provided on the fixing seat on a side close to the indicator line.

[0010] Optionally, the inner side of the fixing seat has a V-shaped opening, and the pressure plate includes a side pressure plate and an upper pressure plate, and the side pressure plate and the upper pressure plate are installed on two sides of the V-shaped opening.

[0011] Optionally, the driving mechanism is a cylinder, which includes a cylinder body and a piston rod, the cylinder body is installed in the accommodating cavity, and the tightening block is installed on the piston rod.

[0012] Optionally, a baffle is provided on one side of the tightening block, and there are two baffles, a U-shaped groove is formed between the two baffles, and the U-shaped groove is installed on the convex strip.

[0013] Optionally, the inner end of the tightening block is a V-shaped groove, and the outer end is provided with a threaded hole, the threaded hole is installed on the end of the piston rod, and the side of the tightening block is provided with a top screw hole, the screw is installed in the top screw hole and rests on the piston rod.

[0014] Optionally, a tube cavity and a valve slot are provided on the side of the device body, and the two ends of the tube cavity are connected to the accommodating cavity and the valve slot. A pneumatic hand valve is installed in the valve slot, and an air pipe is installed in the tube cavity. One end of the air pipe is connected to the cylinder, and the other end is connected to the pneumatic hand valve.

[0015] Optionally, a cover plate is installed on the side of the device body, and the cover plate covers the tube cavity and the valve slot.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0017] 1. The device body serves as the supporting framework of the entire clamping device. The device body adopts a semi-enclosed structure, which provides sufficient strength and stability and can withstand various stresses generated during the working process. The slide groove provides the function of adjusting the position of the clamping assembly, so that the clamping device can adapt to welded pipes of different sizes. The cooperation of the convex strip and the accommodating cavity ensures the precise operation of the clamping assembly. The pressure plate is installed on the inner side of the fixed seat, and through the cooperation with the clamping assembly, it provides uniform and stable pressure to the welded pipe during the clamping process. The cooperation between the clamping block and the pressure plate forms a diagonal clamping state, ensuring the stability of the welded pipe during the welding process. The clamping device realizes the automatic clamping of the welded pipe, and can adjust the clamping force and adapt to different pipe diameters as needed, which simplifies the operation process and improves work efficiency.

[0018] 2. The welded pipe is clamped by relatively arranged clamping components and jacking components, and the clamping and opening states of the clamps are controlled by operating the hand valve to the left and right. The operation is convenient, manpower requirements are reduced, and operation convenience is improved.

[0019] 3. The upper pressure plate and the side pressure plate form a 90° V-shaped angle, and form a double V-shaped clamping method with the top clamping block opposite the welded pipe. The clamping device clamps more firmly, ensuring the stability of the welded pipe during welding and improving the welding quality.

[0020] 4. Indicator lines are set on the fixing seat and the device body, and the position of the fixing seat can be adjusted according to the diameter of the welded pipe. It can adapt to the sizes of different welded pipes. After placing the caliper-type automatic welding equipment on the welded pipe, start the hand valve to clamp the caliper-type automatic welding equipment to the welded pipe.

[0021] 5. A U-shaped groove is provided above the clamping block, which cooperates with the convex strip at the bottom of the device body so that the clamping block can move back and forth along the direction of the convex strip. The cooperation between the U-shaped groove and the convex strip ensures that when in the clamping state, the clamping block is directly opposite to the angle between the upper pressure plate and the side pressure plate.

[0022] Advantages of additional aspects of the present invention will be given in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In addition, the spacing or size between the components is exaggerated to show the positions of the components, and the schematic diagram is only used for illustration.

[0024] Figure 1 is a schematic diagram of a clamping device provided by an embodiment of the present invention;

[0025] Figure 2 is a schematic diagram of a device body provided by an embodiment of the present invention;

[0026] Figure 3 is a schematic diagram of a tightening block provided in an embodiment of the present invention;

[0027] Figure 4 is a schematic diagram of a clamping state of a clamping device provided by an embodiment of the present invention;

[0028] In the figure: 1, device body; 2, side pressure plate; 3, fixing seat; 4, upper pressure plate; 5, pneumatic hand valve; 6, cover plate; 7, top tightening block; 8, air pipe; 9, cylinder; 11, slide groove; 12, indicator line; 13, valve groove; 14, tube cavity; 15, convex strip; 16, accommodating cavity; 71, V-shaped groove; 72, U-shaped groove; 73, threaded hole; 74, top screw hole; DETAILED DESCRIPTION

[0029] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0030] This embodiment proposes a caliper-type pneumatic clamping device for automatic welding, which is mainly used in the automatic welding process to achieve rapid clamping and release of the welded pipe by pneumatic means. It is suitable for welded pipes of various diameters and has broad industrial application prospects.

[0031] like Figure 1 , Figure 2 As shown, the pneumatic clamping device includes a device body 1, a clamping assembly and a clamping assembly; the device body 1 is a semi-enclosed structure, one end of the device body 1 has a slide groove 11, and the other end has a accommodating cavity 16 and a convex strip 15; the clamping assembly includes a fixed seat 3 and a pressure plate, the fixed seat 3 is installed in the slide groove 11, and can be moved to different positions in the slide groove 11, and the pressure plate is installed on the inner side of the fixed seat 3; the clamping assembly includes a driving mechanism and a clamping block 7, the driving mechanism is installed in the accommodating cavity 16, the clamping block 7 is installed at the inner end of the driving mechanism, and is slidably installed on the convex strip 15, under the action of the driving mechanism, the clamping block 7 presses the workpiece against the pressure plate.

[0032] The device body 1 serves as the supporting framework of the entire clamping device. The device body 1 adopts a semi-enclosed structure, which provides sufficient strength and stability and can withstand various stresses generated during the working process. A slide groove 11 is provided at one end, and a receiving cavity 16 and a convex strip 15 are provided at the other end. These structures facilitate the installation and matching of other components. The slide groove 11 provides the function of adjusting the position of the clamping component, so that the clamping device can adapt to welded pipes of different sizes. The matching of the convex strip 15 and the receiving cavity 16 ensures the precise operation of the clamping component.

[0033] The clamping assembly consists of a fixed seat 3 and a pressure plate. The fixed seat 3 is installed at the position of the slide slot 11 by bolts and can move in the slide slot 11. The user can adjust the position of the fixed seat 3 according to the diameter of the welded pipe to ensure that the clamping device is adapted to different welded pipe sizes. The pressure plate is installed on the inner side of the fixed seat 3 and contacts the welded pipe. The function of this assembly is to provide uniform and stable pressure to the welded pipe during the clamping process by cooperating with the clamping assembly.

[0034] The clamping assembly consists of a driving mechanism and a clamping block 7. The driving mechanism is installed in the accommodating cavity 16 of the device body 1, and the clamping block 7 produces a locking effect by contacting the welded pipe. The cooperation between the clamping block 7 and the pressure plate forms a diagonal clamping state to ensure the stability of the welded pipe during the welding process. The clamping device realizes the automatic clamping of the welded pipe, and can adjust the clamping force and adapt to different pipe diameters as needed, simplifying the operation process and improving work efficiency.

[0035] The fixing seat 3 is provided with a long groove, and the bolt passes through the long groove to install the fixing seat 3 on the slide groove 11 of the device body 1, and the extension direction of the long groove is parallel to the convex strip 15. The setting of the long groove and the bolt connection between the fixing seat 3 ensure that the fixing seat 3 can slide stably in the device body 1 and is not prone to accidental displacement. The bolt passes through the long groove to fix the fixing seat 3 in the slide groove 11. This connection method is simple and can ensure good firmness. The clamping device can be conveniently adjusted and locked according to different specifications of welding pipes. The extension direction of the long groove is parallel to the convex strip 15. This design ensures that the movement trajectory of the clamping block 7 driven by the cylinder 9 is always along the normal direction of the welding pipe, thereby ensuring the stable clamping of the welding pipe.

[0036] The long grooves have two, which are arranged in parallel, and two bolts are installed in each long groove. The two long grooves arranged in parallel enable the fixing seat 3 to move more stably in the slide groove 11. The design of two bolts further enhances the firmness of the fixing seat 3, and avoids the instability of the clamping device caused by the loosening or damage of a single bolt. This design improves the stability and durability of the fixing seat 3, especially in the long-term use process, it can ensure the reliability and accuracy of the clamping device.

[0037] An indicator line 12 (such as Figure 2 As shown in the figure, a scale line is provided on the fixing seat 3 near the indicator line 12. The design purpose of the indicator line 12 and the scale line is to facilitate the user to accurately locate the position of the fixing seat 3 when adjusting the clamping device. By observing the alignment of the indicator line 12 and the scale line, the user can quickly and accurately adjust the clamping device according to the pipe diameter of the welded pipe to ensure consistency and reliability during the clamping process. The setting of the indicator line 12 and the scale line makes the operation of the equipment more intuitive and simple, greatly reduces the error of manual adjustment, and improves the accuracy of the clamping device during welding.

[0038] The inner side of the fixing seat 3 has a V-shaped opening, and the pressure plate includes a side pressure plate 2 and an upper pressure plate 4, which are installed on two sides of the V-shaped opening. The side pressure plate 2 and the upper pressure plate 4 can form an effective angle during the clamping process, further enhancing the stable clamping force on the welded pipe. Through the synergistic effect of the V-shaped opening and the side pressure plate 2 and the upper pressure plate 4, a good clamping effect can be maintained under different pipe diameters, thereby improving the quality and stability of welding.

[0039] The driving mechanism is a cylinder 9, which includes a cylinder body and a piston rod. The cylinder body is installed in the accommodating chamber 16, and the clamping block 7 is installed on the piston rod. The piston rod is driven to move forward and backward by air pressure, thereby pushing the clamping block 7 to move, and the clamping block 7 contacts the welded pipe to generate a clamping force. The design of the cylinder 9 enables the entire clamping device to be operated automatically, reducing manual intervention and improving work efficiency.

[0040] like Figure 3 As shown, a baffle is provided on one side of the tightening block 7, and the baffle has two baffles, and a U-shaped groove 72 is formed between the two baffles, and the U-shaped groove 72 is installed on the convex strip 15. The design of the baffle or the U-shaped groove 72 is mainly used to guide the tightening block 7 to move along the correct track to prevent the tightening block 7 from unnecessary lateral displacement or tilting.

[0041] The inner end of the clamping block 7 is a V-shaped groove 71, and the outer end is provided with a threaded hole 73, which is installed at the end of the piston rod. The side of the clamping block 7 is provided with a top screw hole 74, and a screw is installed in the top screw hole 74 and abuts against the piston rod. The design of the threaded hole 73 and the top screw hole 74 enables the clamping block 7 to be more firmly connected to the piston rod, avoiding the displacement or loosening of the clamping block 7 due to loose connection during the operation of the cylinder 9. This design provides higher safety and reliability, ensuring the stable operation of the clamping device under high-frequency operation.

[0042] A tube cavity 14 and a valve groove 13 are provided on the side of the device body 1. The two ends of the tube cavity 14 are connected to the accommodating cavity 16 and the valve groove 13. A pneumatic hand valve 5 is installed in the valve groove 13. An air pipe 8 is installed in the tube cavity 14. One end of the air pipe 8 is connected to the cylinder 9, and the other end is connected to the pneumatic hand valve 5.

[0043] The design of the lumen 14 and the valve slot 13 is used to hide the air pipe 8 of the pneumatic device, reducing the friction and wear of the air pipe 8 during operation. The pneumatic hand valve 5 controls the working state of the cylinder 9 through the lumen 14, and the air pipe 8 connects the pneumatic hand valve 5 and the cylinder 9 to form a complete pneumatic control system. When the pneumatic hand valve 5 is open or closed, the handle is in the valve slot 13 to prevent damage to the entire equipment due to accidental contact during use. Through the operation of the pneumatic hand valve 5, the expansion and contraction of the cylinder 9 can be accurately controlled, thereby achieving the clamping and loosening of the welding pipe by the clamping block 7.

[0044] A cover plate 6 is installed on the side of the device body 1, and the cover plate 6 covers the tube cavity 14 and the valve slot 13. The cover plate 6 is designed to seal the tube cavity 14 and the valve slot 13 to prevent external debris from entering and ensure the normal operation of the internal pneumatic components. The cover plate 6 effectively prevents dust and dirt from entering the tube cavity 14 or the valve slot 13, avoids pollution and damage to the pneumatic system, and further improves the durability and working stability of the device.

[0045] like Figure 4 As shown, the device is placed behind the caliper automatic welding machine, and the automatic clamping device is connected to the caliper automatic welding machine with bolts. After locking the pneumatic clamping device, the caliper automatic welding machine is locked on the welded pipe. When the pneumatic hand valve 5 is pressed inward, the piston rod of the cylinder 9 drives the tightening block 7 to extend, and the upper pressure plate 4, the side pressure plate 2 and the tightening block 7 hold the welded pipe together to achieve the clamping effect.

[0046] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A caliper type pneumatic clamping device for automatic welding, characterized in that: include: Device body, clamping assembly and jacking assembly; The device body is a semi-enclosed structure, with a slide groove at one end and a receiving cavity and a convex strip at the other end; The clamping assembly includes a fixed seat and a pressing plate, wherein the fixed seat is installed in the slide slot and can be moved to different positions in the slide slot, and the pressing plate is installed on the inner side of the fixed seat; The clamping assembly includes a driving mechanism and a clamping block. The driving mechanism is installed in the accommodating cavity. The clamping block is installed at the inner end of the driving mechanism and is slidably installed on the convex strip. Under the action of the driving mechanism, the clamping block presses the workpiece against the pressure plate.

2. The pneumatic clamping device for automatic welding of the caliper type according to claim 1, characterized in that: The fixing seat is provided with a long slot, and the bolt passes through the long slot to install the fixing seat on the sliding slot of the device body, and the extending direction of the long slot is parallel to the convex strip.

3. The pneumatic clamping device for automatic welding of the caliper type according to claim 2, characterized in that: The long grooves are provided with two, the two long grooves are arranged in parallel, and two bolts are installed in each long groove.

4. The pneumatic clamping device for automatic welding of the caliper type according to claim 2, characterized in that: An indication line is arranged on the device body at one side of the slide slot, and a scale line is arranged on the fixing seat at a side close to the indication line.

5. The caliper type pneumatic clamping device for automatic welding according to claim 1, characterized in that: The inner side of the fixing seat is provided with a V-shaped opening, and the pressing plate comprises a side pressing plate and an upper pressing plate, and the side pressing plate and the upper pressing plate are installed on two sides of the V-shaped opening.

6. The pneumatic clamping device for automatic welding of the caliper type according to claim 1, characterized in that: The driving mechanism is a cylinder, which includes a cylinder body and a piston rod. The cylinder body is installed in the accommodating cavity, and the tightening block is installed on the piston rod.

7. The pneumatic clamping device for automatic welding of the caliper type according to claim 6, characterized in that: A baffle is arranged on one side of the tightening block. The baffle is provided with two baffles, a U-shaped groove is formed between the two baffles, and the U-shaped groove is installed on the convex strip.

8. The caliper type pneumatic clamping device for automatic welding according to claim 6, characterized in that: The inner end of the tightening block is a V-shaped groove, and the outer end is provided with a threaded hole, which is installed at the end of the piston rod. The side of the tightening block is provided with a top screw hole, and a screw is installed in the top screw hole and abuts against the piston rod.

9. The caliper type pneumatic clamping device for automatic welding according to claim 6, characterized in that: A tube cavity and a valve slot are arranged on the side of the device body, the two ends of the tube cavity are connected with the accommodating cavity and the valve slot, a pneumatic hand valve is installed in the valve slot, an air pipe is installed in the tube cavity, one end of the air pipe is connected to the cylinder, and the other end is connected to the pneumatic hand valve.

10. The caliper type pneumatic clamping device for automatic welding according to claim 9, characterized in that: A cover plate is installed on the side of the device body, and the cover plate covers the tube cavity and the valve slot.

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