Flange and steel pipe spot welding clamp with scales

Abstract

The utility model discloses a flange and steel pipe spot welding clamp with scales. The flange and steel pipe spot welding clamp comprises a clamp base with trundles and a 90-degree included angle V-shaped workpiece base. A pre-fastening assembly used for clamping a steel pipe is installed on the 90-degree included angle V-shaped workpiece base. An adjustable pressing assembly is installed on the top of the clamp base with the trundles. After the flange and the pre-fastened steel pipe are centered, the flange is pressed through the adjustable pressing assembly; the adjustable pressing assembly comprises a flange pressing plate and a depth adjusting sliding block. The depth adjusting sliding block is movably installed on the flange pressing plate. After the depth adjusting sliding block extends into the side wall of the inner hole of the flange, the depth adjusting sliding block is fixed through a sliding block nut after the depth adjusting sliding block is compared with millimeter scales on the flange pressing plate and the depth size is adjusted. The perpendicularity of the flange end face and the steel pipe is guaranteed, the depth of the steel pipe end face inserted into the flange inner hole is even, comparison and measurement are easy, the clamp is convenient and fast to use, and the spot welding efficiency of the flange and the steel pipe is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange and steel pipe spot welding fixtures, in particular to a flange and steel pipe spot welding fixture with scales. Background Art

[0002] At present, the spot welding fixation of steel pipes and flanges is mainly carried out by manual clamping. When the verticality between the flange and the steel pipe is poor, it will cause the end face of the steel pipe to be inserted into the inner hole of the flange after the steel pipe is inserted into the inner hole of the flange to have an uneven depth, which affects the spot welding efficiency and also reduces the spot welding efficiency. It is necessary to provide a flange and steel pipe spot welding fixture with a scale to solve the above technical problems. Utility Model Content

[0003] The utility model aims to provide a flange and steel pipe spot welding fixture with scale, so that the verticality of the flange end face and the steel pipe can be guaranteed, the depth of the steel pipe end face inserted into the flange inner hole is uniform and easy to compare and measure, the fixture is convenient and quick to use, and effectively improves the spot welding efficiency of the flange and the steel pipe.

[0004] The utility model is realized by the following technical solutions:

[0005] A flange and steel pipe spot welding fixture with scale, comprising a fixture base with casters and a 90° angle V-shaped workpiece seat; the 90° angle V-shaped workpiece seat is vertically welded to the fixture base with casters; wherein: a pre-tightening component for clamping steel pipes is installed on the 90° angle V-shaped workpiece seat; an adjustable clamping component is installed on the top of the fixture base with casters; after the flange is aligned with the pre-tightened steel pipe, the flange is clamped by the adjustable clamping component; the adjustable clamping component comprises a flange pressing plate and a depth adjustment slider; the depth adjustment slider is movably installed on the flange pressing plate; after the depth adjustment slider extends into the side wall of the inner hole of the flange, the millimeter scale on the flange pressing plate is compared, and the depth adjustment slider is fixed by the slider nut after the depth size is adjusted.

[0006] As a further improvement of the technical solution of the utility model, the pre-tightening assembly includes a movable plate, a first clamping screw, a second clamping screw and a movable hoop plate; the movable plate is installed on the 90° V-shaped workpiece seat; the movable hoop plate is installed on the movable plate through the first clamping screw; one end of the second clamping screw passes through the nut and the movable hoop plate in sequence and then abuts against the side wall of the steel pipe to be pre-tightened.

[0007] As a further improvement of the technical solution of the utility model, the adjustable clamping assembly also includes a universal guide square tube, a movable tube, a third clamping screw and an adjustable cross plate; the universal guide square tube can be installed on the top of the caster clamp base by rotating 360° through a steering screw; the movable tube passes through the universal guide square tube and can move forward and backward; the adjustable cross plate is installed on the movable tube through the third clamping screw; movable grooves are symmetrically arranged on the adjustable cross plate; the flange pressure plate is movably installed on the movable groove through a pressure plate nut.

[0008] As a further improvement of the technical solution of the utility model, a movable plate groove is provided on the 90° included angle V-shaped workpiece; the movable plate is inserted into the movable plate groove and fixed by means of set screws.

[0009] As a further improvement of the technical solution of the utility model, a threaded hole is provided on the top of the base of the caster clamp; and the steering screw is threadedly connected to the threaded hole.

[0010] As a further improvement of the technical solution of the utility model, a first handle is provided on the first pressing screw.

[0011] As a further improvement of the technical solution of the utility model, a second handle is provided on the second pressing screw.

[0012] As a further improvement of the technical solution of the utility model, a third handle is provided on the third pressing screw.

[0013] Compared with the prior art, the utility model provides a flange and steel pipe spot welding fixture with scale, which has the following beneficial effects:

[0014] The utility model has a compact structure. When in use, the steel pipe is placed in a 90° V-shaped workpiece seat, the movable plate is first inserted into the movable plate groove, and is tightened with a set screw; secondly, the first tightening screw is rotated to firmly support the movable hoop plate, and the second tightening screw is rotated to pre-tighten the steel pipe; the flange to be spot welded is placed, and after the flange is aligning with the pre-tightened steel pipe, the flange is tightened by manually adjusting the movable tube, the universal guide square tube, the adjustable cross plate, the flange pressing plate, and rotating the third tightening screw, and then the depth adjustment slider installed on the flange pressing plate is extended into the inner hole surface of the flange, and the millimeter scale on the flange pressing plate is compared to determine the depth size. After that, the depth adjustment slider is tightened with the slider nut, and then the second tightening screw is loosened, and the position of the upper end face of the steel pipe is manually adjusted again until it supports the depth adjustment slider, and the second tightening screw is rotated to deaden the steel pipe. The utility model is used for spot welding and fixing flanges and branch steel pipes in the manufacturing process of water supply and drainage equipment. It is easy and quick to use, so that the verticality of the flange end face and the steel pipe is guaranteed, and the depth of the steel pipe end face inserted into the flange inner hole is uniform and easy to compare and measure. The clamp is easy and quick to use and effectively improves the spot welding efficiency of the flange and the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a flange and steel pipe spot welding fixture with scales according to the utility model;

[0016] Figure 2 This is a front view of a flange and steel pipe spot welding fixture with scales according to the utility model;

[0017] Figure 3 This is a right side view of a flange and steel pipe spot welding fixture with scales according to the utility model;

[0018] Figure 4 This is a top view of a flange and steel pipe spot welding fixture with scales according to the utility model;

[0019] Figure 5 It is a partial enlarged view of a flange pressing plate and a depth adjustment slider of a flange and steel pipe spot welding fixture with scales according to the utility model.

[0020] The numbers in the figure are:

[0021] 1- Base of the fixture with casters; 2- 90° V-shaped workpiece seat; 3- movable plate slot; 4- movable plate; 5- first clamping screw; 6- movable hoop plate; 7- second clamping screw; 8- universal guide square tube; 9- movable tube; 10- third clamping screw; 11- adjustable cross plate; 12- flange pressure plate; 13- depth adjustment slider; 14- set screw; 15- pressure plate nut; 16- slider nut. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In the present invention, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In addition, in the present utility model, 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features; in addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] See also Figures 1 to 5 The utility model provides a technical solution: a flange and steel pipe spot welding fixture with scale, comprising a fixture base 1 with casters and a 90° angle V-shaped workpiece seat 2; the 90° angle V-shaped workpiece seat 2 is vertically welded to the fixture base 1 with casters; wherein: a pre-tightening component for clamping the steel pipe is installed on the 90° angle V-shaped workpiece seat 2; an adjustable clamping component is installed on the top of the fixture base 1 with casters; after the flange is aligned with the pre-tightened steel pipe, the flange is clamped by the adjustable clamping component; the adjustable clamping component comprises a flange pressing plate 12 and a depth adjusting slider 13; the depth adjusting slider 13 is movably installed on the flange pressing plate 12; after the depth adjusting slider 13 extends into the side wall of the inner hole of the flange, the millimeter scale on the flange pressing plate 12 is compared, and the depth size is adjusted and then the depth adjusting slider 13 is fixed by the slider nut 16. It should be noted that by setting a millimeter scale on the flange pressure plate 12 and installing a depth adjustment slider 13 on the flange pressure plate 12, the depth of one end of the steel pipe to be welded extending into the flange inner hole can be adjusted, and the depth adjustment slider 13 is fixed by the slider nut 16.

[0027] Specifically, in this embodiment, the pre-tightening assembly includes a movable plate 4, a first clamping screw 5, a second clamping screw 7 and a movable hoop plate 6; the movable plate 4 is installed on the 90° V-shaped workpiece seat 2; the movable hoop plate 6 is installed on the movable plate 4 through the first clamping screw 5; one end of the second clamping screw 7 passes through the nut and the movable hoop plate 6 in sequence and then abuts against the side wall of the steel pipe to be pre-tightened. It should be noted that the 90° V-shaped workpiece seat is welded and installed on the base 1 of the caster clamp, which ensures the verticality of the welded flange and steel pipe; the 90° V-shaped workpiece seat is installed with a movable plate groove, which is convenient for the movable plate 4, the first clamping screw 5, the movable hoop plate 6 and the second clamping screw 7 to be adjusted and screwed in according to steel pipes of different specifications to ensure that the steel pipes are reliably fixed; an adjustable cross plate and a flange pressure plate 12 are installed on the movable pipe, and the movable pipe can be moved and adjusted and the third clamping screw can be turned to adapt to the clamping of flanges of different specifications and sizes; the side of the flange pressure plate 12 has a millimeter scale, and the depth of the end face of the steel pipe to be welded extending into the inner hole of the flange can be determined by adjusting the depth adjustment slider 13 and tightening the depth adjustment slider 13 with the slider nut 16.

[0028] Specifically, in the present embodiment, the adjustable clamping assembly further includes a universal guide square tube 8, a movable tube 9, a third clamping screw 10 and an adjustable cross plate 11; the universal guide square tube 8 can be rotatably mounted on the top of the caster clamp base 1 by a steering screw 360°; the movable tube 9 passes through the universal guide square tube 8 and can move forward and backward; the adjustable cross plate 11 is mounted on the movable tube 9 by the third clamping screw 10; the adjustable cross plate 11 is symmetrically provided with movable grooves; the flange pressure plate 12 is movably mounted on the movable groove by a pressure plate nut 15. It should be noted that the steering screw welded on the universal guide square tube 8 can pass through the threaded hole and can rotate 360°, the movable tube 9 can pass through the universal guide square tube 8 and can move forward and backward, and the movable tube 9 is installed with an adjustable cross plate 11 and a flange pressure plate 12. By moving and adjusting the movable tube 9 and shaking the third clamping screw 10, flanges of different specifications and sizes can be clamped.

[0029] Specifically, in the present embodiment, the 90° angle V-shaped workpiece is provided with a movable plate groove 3; the movable plate 4 is inserted into the movable plate groove 3 and fixed by a set screw 14. It should be noted that one end of the movable plate 4 can be inserted into the movable plate groove 3, and the inserted length is adjusted according to the size of the steel pipe and then fixed on the 90° angle V-shaped workpiece seat by a set screw 14; the other end of the movable plate 4 is connected and installed with a first clamping screw 5 for clamping and fixing the movable hoop plate 6.

[0030] Specifically, in the present embodiment, a threaded hole is provided on the top of the caster clamp base 1; and the steering screw is threadedly connected to the threaded hole.

[0031] Specifically, in this embodiment, a first handle is provided on the first pressing screw 5 to facilitate the rotation of the first pressing screw 5 .

[0032] Specifically, in this embodiment, a second handle is provided on the second pressing screw 7 to facilitate the rotation of the second pressing screw 7 .

[0033] Specifically, in this embodiment, a third handle is provided on the third pressing screw 10 to facilitate the rotation of the third pressing screw 10 .

[0034] Working principle of the utility model: The utility model relates to a spot welding fixture for flange and steel pipe with scale, wherein the steel pipe is placed into a 90° V-shaped workpiece seat, and the movable plate 4 is first inserted into the movable plate groove 3, and is pressed with a set screw 14; secondly, the first pressing screw 5 is rotated to firmly push the movable hoop plate 6, and the second pressing screw 7 is rotated to pre-tighten the steel pipe; the flange to be spot welded is placed, and after the flange is centered with the pre-tightened steel pipe, the movable pipe 9, the universal guide square pipe 8, and the adjustable cross plate 1 are manually adjusted. 1. After the flange pressure plate 12 is tightened by rotating the third tightening screw 10, extend the depth adjustment slider 13 installed on the flange pressure plate 12 into the inner hole surface of the flange, compare the millimeter scale on the flange pressure plate 12, and tighten the depth adjustment slider 13 with the pressure plate nut 15 after determining the depth size, then loosen the second tightening screw 7, and manually adjust the position of the upper end face of the steel pipe again until it supports the depth adjustment slider 13. After rotating the second tightening screw 7 to deaden the steel pipe, the flange and the steel pipe can be spot welded and fixed.

[0035] Compared with the prior art, the utility model provides a flange and steel pipe spot welding fixture with scale, which has the following beneficial effects:

[0036] The utility model has a compact structure. When in use, the steel pipe is placed in a 90° angle V-shaped workpiece seat, the movable plate 4 is first inserted into the movable plate groove 3, and is tightened with a set screw 14; secondly, the first tightening screw 5 is rotated to firmly support the movable hoop plate 6, and the second tightening screw 7 is rotated to pre-tighten the steel pipe; the flange to be spot welded is placed, and after the flange is aligning with the pre-tightened steel pipe, the flange is tightened by manually adjusting the movable tube 9, the universal guide square tube 8, the adjustable cross plate 11, the flange pressing plate 12, and rotating the third tightening screw 10. Then, the depth adjustment slider 13 installed on the flange pressing plate 12 is extended into the inner hole surface of the flange, and the millimeter scale on the flange pressing plate 12 is compared. After determining the depth size, the depth adjustment slider 13 is tightened with the slider nut 16, and then the second tightening screw 7 is loosened, and the upper end surface position of the steel pipe is manually adjusted again until it supports the depth adjustment slider 13, and the second tightening screw 7 is rotated to deaden the steel pipe. The utility model is used for spot welding and fixing flanges and branch steel pipes in the manufacturing process of water supply and drainage equipment. It is easy and quick to use, so that the verticality of the flange end face and the steel pipe is guaranteed, and the depth of the steel pipe end face inserted into the flange inner hole is uniform and easy to compare and measure. The clamp is easy and quick to use and effectively improves the spot welding efficiency of the flange and the steel pipe.

[0037] The technical solutions provided by the embodiments of the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. A graduated flange and steel pipe spot welding fixture, comprising a fixture base with casters and a 90° angle V-shaped workpiece seat; the 90° angle V-shaped workpiece seat is vertically welded to the fixture base with casters; characterized in that: The 90° V-shaped workpiece seat is provided with a pre-tightening assembly for clamping the steel pipe; an adjustable clamping assembly is installed on the top of the base of the caster clamp; after the flange is aligned with the pre-tightened steel pipe, the flange is clamped by the adjustable clamping assembly; the adjustable clamping assembly includes a flange pressing plate and a depth adjustment slider; the depth adjustment slider is movably mounted on the flange pressing plate; after the depth adjustment slider is extended into the side wall of the inner hole of the flange, the millimeter scale on the flange pressing plate is compared, and after the depth dimension is adjusted, the depth adjustment slider is fixed by the slider nut.

2. A graduated flange and steel pipe spot welding fixture according to claim 1, characterized in that: The pre-tightening assembly includes a movable plate, a first clamping screw, a second clamping screw and a movable hoop plate; the movable plate is installed on the 90° V-shaped workpiece seat; the movable hoop plate is installed on the movable plate through the first clamping screw; one end of the second clamping screw passes through the nut and the movable hoop plate in sequence and then abuts against the side wall of the steel pipe to be pre-tightened.

3. The flange and steel pipe spot welding fixture with scale according to claim 1 is characterized in that: The adjustable clamping assembly also includes a universal guide square tube, a movable tube, a third clamping screw and an adjustable cross plate; the universal guide square tube can be installed on the top of the caster clamp base by rotating 360° through a steering screw; the movable tube passes through the universal guide square tube and can move forward and backward; the adjustable cross plate is installed on the movable tube through the third clamping screw; movable grooves are symmetrically arranged on the adjustable cross plate; the flange pressure plate is movably installed on the movable groove through a pressure plate nut.

4. A graduated flange and steel pipe spot welding fixture according to claim 2, characterized in that: The 90° included angle V-shaped workpiece is provided with a movable plate groove; the movable plate is inserted into the movable plate groove and fixed by means of set screws.

5. The flange and steel pipe spot welding fixture with scale according to claim 3 is characterized in that: A threaded hole is arranged on the top of the base of the caster clamp; and the steering screw is threadedly connected with the threaded hole.

6. A graduated flange and steel pipe spot welding fixture according to claim 2, characterized in that: The first pressing screw is provided with a first handle.

7. The flange and steel pipe spot welding fixture with scale according to claim 2 is characterized in that: The second pressing screw is provided with a second handle.

8. The flange and steel pipe spot welding fixture with scale according to claim 3 is characterized in that: The third pressing screw is provided with a third handle.

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