Air pressure tank connecting pipe welding calibration device

Abstract

The invention relates to the technical field of air pressure tank connecting pipe welding, in particular to an air pressure tank connecting pipe welding calibration device which comprises a bottom plate provided with a vertical plate perpendicular to the horizontal line of the bottom plate, and further comprises a calibration mechanism used for conducting fixed position calibration adjustment according to the vertical height of an air pressure tank connecting pipe; and a clamping mechanism. The horizontal height of the flange fixing plate can be adjusted in advance according to the vertical height of the air pressure tank connecting pipe, the clamping and fixing requirements of the multi-height air pressure tank connecting pipe are met, rapid calibration and positioning are achieved, and welding of flanges at the upper end and the lower end of the air pressure tank connecting pipe is assisted; the welding requirement of the air pressure tank connecting pipe can be quickly met by aiming at the existing air pressure tank connecting pipe with an L-shaped structure and combining with a calibration mechanism; the flange clamping device is simple in structure, convenient and labor-saving in overall operation, capable of replacing a traditional clamping structure, and capable of being finely adjusted through the positioning screw rod to meet the clamping requirement for flanges with multiple thicknesses.

Description

Technical Field

[0001] The invention relates to the technical field of pressure tank connecting pipe welding, and in particular to a pressure tank connecting pipe welding calibration device. Background Art

[0002] Air pressure tank connecting pipes are usually used to connect air pressure tanks to other equipment or systems to transmit gas or liquid, and their ends are integrated with welding flanges.

[0003] At present, welding tools are used to perform integrated welding on the corresponding flanges at both ends of the pressure tank connecting pipe. However, the calibration system in the existing welding tools is usually operated in a traditional manual manner, which results in the non-uniqueness of the adjustment of the fixed spacing, many uncertain factors, and increased subsequent flange adjustment and rework costs. As a result, the welding tools cannot quickly calibrate the pressure tank connecting pipes of different heights efficiently and with high quality, reducing the scope of application.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned shortcomings and provide a welding calibration device for a connecting pipe of a gas pressure tank.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: a pressure tank connecting pipe welding calibration device, comprising a bottom plate for placing the L-shaped pressure tank connecting pipe, a vertical plate perpendicular to the horizontal line of the bottom plate is arranged on the bottom plate, and further comprising:

[0007] A calibration mechanism, arranged on the vertical surface of the vertical plate, for performing fixed position calibration adjustment according to the vertical height of the air pressure tank connecting pipe;

[0008] The clamping mechanism is used to fix the flanges to be welded at both ends of the connecting pipe of the air pressure tank.

[0009] Furthermore, the calibration mechanism includes an upper bearing seat and a lower bearing seat respectively arranged at the top and bottom of the groove in the upper groove of the vertical plate, a screw rod penetrating the upper bearing seat is rotatably arranged on the lower bearing seat, a transmission block is movably arranged on the screw rod, a flange fixing plate is arranged on the transmission block, and two sliding rails for slidingly connecting the flange fixing plate are arranged on the vertical plate.

[0010] Furthermore, a pointer is provided on one side of the flange fixing plate, a scale for matching use is provided on the side of the vertical plate, and a positioning block is provided at the lower end of one side of the flange fixing plate.

[0011] Furthermore, the clamping mechanism comprises:

[0012] A first clamping assembly is detachably arranged on the flange fixing plate and is used to clamp and fix the flange to be welded at the upper end of the air pressure tank connecting pipe;

[0013] The second clamping assembly is detachably arranged on the bottom plate and is used to clamp and fix the flange to be welded at the lower end of the connecting pipe of the air pressure tank.

[0014] Furthermore, the first clamping assembly and the second clamping assembly have the same structure and both include a symmetrically arranged first flange clamp unit and a second flange clamp unit. A center positioning plate is arranged at the center of the center connecting line of the first flange clamp unit and the second flange clamp unit. Two positioning pins for fixing the flange bolt holes are symmetrically arranged on both sides of the radial line of the center positioning plate.

[0015] Furthermore, the first flange clamp unit and the second flange clamp unit have the same structure, both comprising a detachably mounted assembly frame and a support base detachably arranged on the assembly frame, a first hinged rod and a second hinged rod rotatably arranged at an angle of 90° being arranged on the support base, a connecting rod rotatably arranged in a cavity opened in the middle part of the first hinged rod and rotatably connected to the middle section of the second hinged rod, and a positioning screw that can be adjusted up and down is rotatably arranged at the end of the second hinged rod.

[0016] Furthermore, the lowest scale horizontal line on the scale coincides with the lower horizontal line of the flange fixed on the base plate.

[0017] Furthermore, the indication line of the pointer coincides with the center line of the flange fixed on the flange fixing plate.

[0018] Furthermore, a vertical vertical plate is provided on the lower horizontal surface of the lower bearing seat fixed at the bottom of the groove opened on the vertical plate, and is used to support the lining plate of the connecting pipe of the limit air pressure tank.

[0019] Furthermore, a hand wheel is arranged on the top of the screw rod.

[0020] Compared with the prior art, the present invention has the following beneficial effects: the present invention can pre-adjust the horizontal height of the flange fixing plate according to the vertical height of the air pressure tank connecting pipe through the calibration mechanism, so as to meet the clamping and fixing requirements of air pressure tank connecting pipes of multiple heights, realize rapid calibration and positioning, and assist in the welding of the flanges at the upper and lower ends of the air pressure tank connecting pipe; and the flange fixing plates on the bottom plate and the vertical plate can be used for the existing L-shaped air pressure tank connecting pipe, and combined with the calibration mechanism, quickly meet the welding requirements of the air pressure tank connecting pipe; and through the clamping mechanism, a multi-link hinge is used to realize the rapid clamping function of the flange, and the overall operation is convenient and labor-saving, which can replace the traditional clamping structure, and the positioning screw can fine-adjust the relative height of the clamping ends on the first flange clamp unit and the second flange clamp unit to meet the clamping requirements of flanges of multiple thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 A three-dimensional structural diagram of an overall perspective of an embodiment of the present invention;

[0023] Figure 2 A three-dimensional structural diagram of another perspective of an embodiment of the present invention;

[0024] Figure 3 A three-dimensional structural diagram of a welded air pressure tank connecting pipe according to an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the side plan structure of the integrally welded air pressure tank connecting pipe according to one embodiment of the present invention;

[0026] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0027] Figure 6 The figure is a three-dimensional structural diagram of a flange clamp unit according to an embodiment of the present invention from one perspective.

[0028] In the figure: 1. base plate; 2. vertical plate; 3. calibration mechanism; 31. upper bearing seat; 32. lower bearing seat; 33. screw rod; 331. hand wheel; 34. transmission block; 35. flange fixing plate; 36. pointer; 37. scale; 38. positioning block; 39. slide rail; 4. clamping mechanism; 41. first flange clamp unit; 42. second flange clamp unit; 401. assembly frame; 402. support seat; 403. first hinge rod; 404. second hinge rod; 405. connecting rod; 406. positioning screw; 43. center positioning plate; 44. positioning pin; 5. lining plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0032] like Figure 1-6 As shown, a welding calibration device of the present invention is applied to a connecting pipe of a gas pressure tank, comprising a bottom plate 1 for placing the connecting pipe of the gas pressure tank in an L-shaped structure, a vertical plate 2 perpendicular to the horizontal line of the bottom plate 1 is arranged on the bottom plate 1, and further comprising:

[0033] A calibration mechanism 3, arranged on the vertical surface of the vertical plate 2, is used to perform fixed position calibration adjustment according to the vertical height of the air pressure tank connecting pipe;

[0034] The clamping mechanism 4 is used to fix the flanges to be welded at both ends of the connecting pipe of the air pressure tank.

[0035] In the specific implementation, a triangular support frame is used on the back of the vertical plate 2 and installed on the upper surface of the base plate 1 to achieve a stable connection effect, and through the calibration mechanism 3 installed on the vertical plate 2, the horizontal height of the flange fixing plate 35 can be pre-adjusted according to the vertical height of the air pressure tank connecting pipe, which meets the clamping and fixing requirements of air pressure tank connecting pipes of multiple heights, realizes rapid calibration and positioning, and assists in the welding of the flanges at the upper and lower ends of the air pressure tank connecting pipe; in addition, through the installation of the clamping mechanism 4, it can replace the traditional clamping structure to realize the rapid clamping function of the flange, and the overall operation is convenient and labor-saving.

[0036] In one embodiment, the calibration mechanism 3 comprises an upper bearing seat 31 and a lower bearing seat 32 respectively arranged at the top and bottom of the groove on the vertical plate 2, a screw rod 33 penetrating the upper bearing seat 31 is rotatably arranged on the lower bearing seat 32, a transmission block 34 is movably arranged on the screw rod 33, a flange fixing plate 35 is arranged on the transmission block 34, and two slide rails 39 for slidingly connecting the flange fixing plate 35 are arranged on the vertical plate 2. In this design, the upper bearing seat 31 and the lower bearing seat 32 are respectively fixed with bolts at the top and bottom of the groove machined on the vertical center line of the vertical plate 2, and the screw rod 33 penetrating the inner ring of the upper bearing seat 31 and designed vertically is connected to the inner ring of the lower bearing seat 32. When the screw rod 33 is rotated, the transmission block 34 connected with the external thread on the screw rod 33 and the flange fixing plate 35 bolted on the transmission block 34 will be driven to move in the vertical direction under the limit of the slide rails 39 on both sides of the vertical plate 2.

[0037] It should be noted that two groups of sliding blocks that slide in cooperation with the sliding rails 39 are symmetrically mounted on the back of the flange fixing plate 35 .

[0038] It should be noted that the upper bearing seat 31 and the lower bearing seat 32 are both installed in the vertical grooves machined on the vertical plate 2 using trapezoidal structural screws, and the two ends of the protruding grooves on the upper bearing seat 31 and the lower bearing seat 32 are fixed to the vertical plate 2 using screws.

[0039] Furthermore, a pointer 36 is provided on one side of the flange fixing plate 35, a scale 37 for use with the flange fixing plate 2 is provided on the side of the vertical plate 2, and a positioning block 38 is provided on the lower end of one side of the flange fixing plate 35. With this design, the pointer 36 fixed by bolts on one side of the flange fixing plate 35 and the scale 37 fixed by screws on the side of the vertical plate 2 can provide real-time scale feedback through the vertical height of the air pressure tank connecting pipe during the operation of the screw rod 33; and the positioning block 38 welded on the lower end of one side of the flange fixing plate 35 can be used to screw in the positioning rod through the internal thread groove machined on the positioning block 38 once the central vertical height of the flange fixing plate 35 is determined, so as to further fix the height of the flange fixing plate 35 after calibration and adjustment, thereby reducing the subsequent flange adjustment and rework costs.

[0040] In one embodiment, the clamping mechanism 4 comprises:

[0041] A first clamping assembly, which is detachably arranged on the flange fixing plate 35 and is used to clamp and fix the flange to be welded at the upper end of the air pressure tank connecting pipe;

[0042] The second clamping assembly is detachably mounted on the bottom plate 1, and is used to clamp and fix the flange to be welded at the lower end of the air pressure tank connecting pipe. In this design, the first clamping assembly detachably mounted on the flange fixing plate 35 and the second clamping assembly detachably mounted on the bottom plate 1 can respectively fix the upper and lower ends of the air pressure tank connecting pipe with an existing L-shaped structure with welding flanges, and in combination with the calibration mechanism 3, the integrated welding calibration of the air pressure tank connecting pipe can be completed efficiently, reducing the subsequent flange adjustment and rework costs.

[0043] In one embodiment, the first clamping assembly and the second clamping assembly have the same structure, and both include a symmetrically arranged first flange clamp unit 41 and a second flange clamp unit 42, a center positioning plate 43 is arranged at the center of the center connecting line of the first flange clamp unit 41 and the second flange clamp unit 42, and two positioning pins 44 for fixing flange bolt holes are symmetrically arranged on both sides of the radial line on the center positioning plate 43. In this design, through the first flange clamp unit 41 and the second flange clamp unit 42 symmetrically distributed on the vertical surface of the flange fixing plate 35 and the upper surface of the bottom plate 1, and the center positioning plate 43 installed at the center of the center connecting line of the first flange clamp unit 41 and the second flange clamp unit 42, in conjunction with the two positioning pins 44 symmetrically distributed on both sides of the radial line of the center positioning plate 43, two flanges to be welded at both ends of the air pressure tank connecting pipe can be sequentially fixed on the bottom plate 1 and the flange fixing plate 35, so that the two flanges are placed at the center position of the plane where they are located without deviation, so as to achieve the effect of precise positioning.

[0044] In one embodiment, the first flange clamp unit 41 and the second flange clamp unit 42 have the same structure, both comprising a detachably mounted assembly frame 401, a support base 402 detachably mounted on the assembly frame 401, a first hinge rod 403 and a second hinge rod 404 rotatably mounted at an angle of 90° on the support base 402, and a connecting rod 405 rotatably mounted in a cavity in the middle of the first hinge rod 403 and rotatably connected to the middle section of the second hinge rod 404. In this design, the support base 402 is fixed with a pin on the top surface of the assembly frame 401, and two rotating shafts such as Figure 6 The two vertically distributed first hinged rods 403 and second hinged rods 404 installed as shown, and the connecting rod 405 connected to the middle section of the second hinged rod 404 and rotatably connected in a cavity opened in the middle part of the connecting rod 405, operate the first hinged rod 403, and drive the second hinged rod 404 to approach or move away from the outer surface of the flange through the linkage of the connecting rod 405, thereby achieving clamping or releasing of the flange.

[0045] Preferably, a positioning screw 406 that can be adjusted up and down is rotatably provided at the end of the second hinge rod 404. With this design, the positioning screw 406 is connected with the internal thread machined in the groove that penetrates up and down at the end of the second hinge rod 404. When the positioning screw 406 is rotated, the relative distance between the clamping surface on the positioning screw 406 and the flange will be changed, thereby realizing a micro-adjustment function and meeting the requirements for clamping flanges of multiple specifications.

[0046] In one embodiment, the lowest scale horizontal line on the scale 37 coincides with the lower horizontal line of the flange fixed on the bottom plate 1; the indication line of the pointer 36 coincides with the center line of the flange fixed on the flange fixing plate 35. In this design, by coinciding the lowest scale horizontal line on the scale 37 with the lower horizontal line of the flange fixed on the bottom plate 1, and coinciding the indication line of the pointer 36 with the center line of the flange fixed on the flange fixing plate 35, it can be ensured that the indication height of the pointer 36 on the scale 37 coincides with the vertical height of the air pressure tank connecting pipe, achieving a pre-calibration adjustment effect and precise operation.

[0047] In one embodiment, a lining plate 5 vertical to the vertical plate 2 and used to support the limit pressure tank connection pipe is provided on the lower horizontal surface of the lower bearing seat 32 fixed at the bottom of the groove opened on the vertical plate 2. In this design, the lining plate 5 vertically welded on the vertical plate 2 can assist in supporting the placement of the pressure tank connection pipe.

[0048] In one embodiment, a hand wheel 331 is provided at the top of the screw rod 33. In this design, by sleeve-mounting the fixed hand wheel 331 at the top of the screw rod 33, an operable space for rotation is provided, and the operation is convenient.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A pressure tank connecting pipe welding calibration device, comprising a bottom plate (1) for placing an L-shaped pressure tank connecting pipe, wherein a vertical plate (2) perpendicular to the horizontal line of the bottom plate (1) is arranged on the bottom plate (1), characterized in that: Also includes: A calibration mechanism (3) is arranged on the vertical surface of the vertical plate (2) and is used for performing fixed position calibration adjustment according to the vertical height of the air pressure tank connecting pipe; The clamping mechanism (4) is used to fix the flanges to be welded at both ends of the connecting pipe of the air pressure tank.

2. A pressure tank connecting pipe welding calibration device according to claim 1, characterized in that: The calibration mechanism (3) comprises an upper bearing seat (31) and a lower bearing seat (32) respectively arranged at the top and bottom of the upper groove of the vertical plate (2); a screw rod (33) penetrating the upper bearing seat (31) is rotatably arranged on the lower bearing seat (32); a transmission block (34) is movably arranged on the screw rod (33); a flange fixing plate (35) is arranged on the transmission block (34); and two slide rails (39) for slidably connecting the flange fixing plate (35) are arranged on the vertical plate (2).

3. A pressure tank connecting pipe welding calibration device according to claim 2, characterized in that: A pointer (36) is provided on one side of the flange fixing plate (35), a scale (37) for matching is provided on the side of the vertical plate (2), and a positioning block (38) is provided at the lower end of one side of the flange fixing plate (35).

4. A pressure tank connecting pipe welding calibration device according to claim 2, characterized in that: The clamping mechanism (4) comprises: A first clamping assembly, detachably arranged on the flange fixing plate (35), for clamping and fixing the flange to be welded at the upper end of the air pressure tank connecting pipe; The second clamping assembly is detachably arranged on the base plate (1) and is used to clamp and fix the flange to be welded at the lower end of the air pressure tank connecting pipe.

5. A pressure tank connecting pipe welding calibration device according to claim 4, characterized in that: The first clamping assembly and the second clamping assembly have the same structure, and both include a first flange clamp unit (41) and a second flange clamp unit (42) that are symmetrically arranged. A center positioning plate (43) is arranged at the center of the center connecting line of the first flange clamp unit (41) and the second flange clamp unit (42). Two positioning pins (44) for fixing flange bolt holes are symmetrically arranged on both sides of the radial line on the center positioning plate (43).

6. A pressure tank connecting pipe welding calibration device according to claim 5, characterized in that: The first flange clamp unit (41) and the second flange clamp unit (42) have the same structure, both comprising a detachably mounted assembly frame (401) and a support base (402) detachably arranged on the assembly frame (401); a first hinge rod (403) and a second hinge rod (404) rotatably arranged at an angle of 90° are arranged on the support base (402); a connecting rod (405) rotatably connected to the middle section of the second hinge rod (404) is rotatably arranged in a cavity opened in the middle portion of the first hinge rod (403); a positioning screw (406) rotatably arranged at the end of the second hinge rod (404) that can be adjusted up and down.

7. A pressure tank connecting pipe welding calibration device according to claim 3, characterized in that: The lowest scale horizontal line on the scale ruler (37) coincides with the lower horizontal line of the flange fixed on the base plate (1).

8. The welding calibration device for connecting pipes of air pressure tanks according to claim 3, characterized in that: The indication line of the pointer (36) coincides with the center line of the flange fixed on the flange fixing plate (35).

9. The welding calibration device for connecting pipes of air pressure tanks according to claim 2, characterized in that: A lining plate (5) vertical to the vertical plate (2) and used to support the connecting pipe of the limit pressure tank is arranged on the lower horizontal surface of the lower bearing seat (32) fixed at the bottom of the groove opened on the vertical plate (2).

10. A pressure tank connecting pipe welding calibration device according to claim 2, characterized in that: A hand wheel (331) is arranged on the top of the screw rod (33).

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