Clamp and welding fixing device

Abstract

The utility model relates to a clamp and a welding fixing device, comprising a base, one end in a first direction is provided with an accommodating groove, and the accommodating groove penetrates through the base along a second direction, so that a pipeline penetrates through the accommodating groove along the second direction and is accommodated in the accommodating groove; the first direction is intersected with the second direction; the cover plate has an avoiding state and a pressing state; when the cover plate is in the avoiding state, the cover plate avoids the pipeline so that the pipeline can be contained in the containing groove. The locking mechanism is mounted on the base; when the cover plate is in the pressing state, the cover plate is pressed on the pipeline contained in the containing groove, the locking mechanism locks the cover plate on the base, and the pipeline is clamped between the base and the cover plate in the first direction.

Description

Technical Field

[0001] The utility model relates to the technical field of welding auxiliary equipment, in particular to a clamp and a welding fixing device. Background Art

[0002] Welding is a manufacturing process and technology that uses heat, high temperature or high pressure to join metals or other thermoplastic materials such as plastics. Usually, some pipes are connected by welding. For example, copper pipes are connected and fixed by flame brazing, copper pipes are connected and fixed by copper pipes, copper pipes are connected and fixed by aluminum pipes, or copper pipes are connected and fixed by flame brazing.

[0003] When welding pipelines, the pipelines need to be clamped and positioned to reduce displacement of the pipelines and ensure welding quality. Traditional clamps have elastic clamping parts on both sides of the clamping mouth. When the pipeline is placed in the clamping mouth, the elastic clamping parts on both sides clamp the pipeline. However, in this setting, the pipeline is fixed in the clamping mouth under the elastic force of the elastic clamping parts on both sides, and since the elastic clamping parts on both sides are elastic, they will deform elastically when subjected to force, which can easily cause the pipeline to shift in the clamping mouth, thereby causing the matching gap between the pipelines to be too large, which affects the welding quality. Utility Model Content

[0004] Based on this, it is necessary to provide a clamp and a welding fixture that can improve the above problems.

[0005] A clamp, comprising:

[0006] A base, wherein a receiving groove is provided at one end in the first direction, and the receiving groove penetrates the base along the second direction so that the pipeline passes through along the second direction and is received in the receiving groove; the first direction intersects with the second direction;

[0007] The cover plate has an avoidance state and a compression state; when the cover plate is in the avoidance state, the cover plate avoids the pipeline so that the pipeline is accommodated in the accommodation groove;

[0008] A locking mechanism is installed on the base; when the cover plate is in the compressed state, the cover plate is pressed on the pipeline accommodated in the accommodating groove, the locking mechanism locks the cover plate on the base, and the pipeline is clamped between the base and the cover plate along the first direction.

[0009] In one embodiment, the cover plate and the base are detachably arranged;

[0010] or

[0011] The cover plate is movably mounted on the base and can move relative to the base so that the cover plate can switch between the avoidance state and the pressing state.

[0012] In one of the embodiments, the cover plate is disposed at one end of the base having the accommodating groove in the first direction, and is capable of rotating relative to the base around a first axis extending along the first direction.

[0013] In one embodiment, the locking mechanism includes a matching piece and a clamping assembly, the matching piece is connected to the base, and the clamping assembly is installed on the matching piece;

[0014] The cover plate is provided with a card interface. When the cover plate is in the clamping state, the cover plate is clamped to the outside of the matching piece through the card interface, and the clamping assembly clamps and locks the cover plate.

[0015] In one embodiment, the matching piece is a columnar structure;

[0016] and / or

[0017] The clamping assembly includes a limit member, an elastic member and a clamping member, the limit member is installed on the matching member, and the elastic member is located between the limit member and the clamping member; when the cover plate is in the clamping state, the clamping member presses the cover plate on the base under the elastic force of the elastic member.

[0018] In one embodiment, a boss is provided on the outer peripheral surface of one end of the matching member close to the base, and one end of the pressing member close to the base abuts against the boss, so that a clamping gap is formed between the pressing member and the base;

[0019] The cover plate can be accommodated in the clamping gap, and the card interface is clamped outside the boss.

[0020] In one embodiment, the matching member includes a bolt and a nut, the bolt is connected to the base, the nut is screwed on an end of the bolt away from the base, and the limiter is located on a side of the nut close to the base;

[0021] The elastic force applied by the elastic member to the pressing member can be adjusted by screwing the nut.

[0022] In one embodiment, two locking mechanisms are provided on the base, and the two locking mechanisms are respectively located on both sides of the receiving groove in the third direction; the first direction, the second direction and the third direction intersect each other; when the cover plate is in the compressed state, the cover plate is locked on the cover plate under the action of the two locking mechanisms;

[0023] and / or

[0024] When the cover plate is in the compressed state, the orthographic projection of the cover plate toward the receiving groove covers at least a portion of the receiving groove.

[0025] In one embodiment, the base is provided with a first assembly hole along the first direction, the base can be sleeved on the external mechanism through the first assembly hole, and the position of the base with respect to the external mechanism can be adjusted through the first assembly hole;

[0026] and / or

[0027] The base is provided with a second assembly hole along the second direction, and the base can be sleeved on the external mechanism through the second assembly hole, and the position of the base with respect to the external mechanism can be adjusted through the second assembly hole.

[0028] A welding fixture comprises a support plate, a support column, a first fastener and at least one clamp as described above;

[0029] One end of the support column is connected to the support plate, and the other end extends away from the support plate. Each of the clamps is installed on one of the support columns through the base. The axial position and circumferential position of the clamp on the support column are adjustable. When the base is adjusted to a first target position relative to the support column, the first fastener fixes the base to the support column.

[0030] In one of the embodiments, the welding fixture further comprises a base frame and a second fastener, the support plate is supported on the base frame, and the position of the support plate relative to the base frame in a circumferential direction around a second axis extending in a horizontal direction is adjustable;

[0031] When the support plate is adjusted to a second target position relative to the base frame, the second fastener fixes the support plate to the base frame.

[0032] In one embodiment, the welding fixing device also includes a clamping mechanism, which includes a hose and a clamp, one end of the hose is connected to the support plate, and the clamp is connected to the other end of the hose, and the clamp is constructed to clamp a welding ventilation pipe or a cooling water pipe.

[0033] The above-mentioned clamp and welding fixture, when it is necessary to clamp the pipeline, place the pipeline in the receiving groove, and the cover plate switches from the avoidance state to the clamping state. In the clamping state, the locking mechanism locks the cover plate on the base. At this time, the two ends of the pipeline in the first direction are respectively in contact with the base and the cover plate, and the cover plate and the base cooperate to clamp the pipeline in the first direction to avoid displacement of the pipeline and ensure the welding quality. At the same time, the clamp provided by the present application, when clamping the pipeline, relies on the clamping force formed by the cover plate and the base to clamp the pipeline. The base is a non-elastic part. Compared with the method in the prior art where the pipeline is fixed in the clamping mouth by the elastic force of the elastic clamping parts on both sides, the base will not be elastically deformed when subjected to external force, and it is not easy to cause the pipeline to shift in the clamp, avoiding excessive matching gaps between pipelines, thereby improving welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Axonometric view of a fixture provided in one embodiment of the present application ( Figure 1 The middle cover is in the avoidance state);

[0035] Figure 2 for Figure 1 An axonometric view of another perspective of the fixture shown in ;

[0036] Figure 3 for Figure 1 A structural diagram of the clamp shown in FIG. 1 when the cover plate is in a clamped state;

[0037] Figure 4 A structural diagram of a clamp provided in another embodiment of the present application;

[0038] Figure 5 A structural diagram of a clamp provided in yet another embodiment of the present application;

[0039] Figure 6 for Figure 3 The structure diagram of the fixture shown in omits some structures;

[0040] Figure 7 An axonometric diagram of a welding fixture provided in one embodiment of the present application;

[0041] Figure 8 for Figure 7 Axonometric view of another perspective of the welding fixture shown in .

[0042] Description of reference numerals:

[0043] 1000, welding fixture; 100, fixture; 10, base; 11, receiving groove; 12, first assembly hole; 13, second assembly hole; 20, cover plate; 21, card interface; 30, locking mechanism; 31, matching piece; 311, boss; 312, bolt; 313, nut; 32, clamping assembly; 321, limit piece; 322, elastic piece; 323, clamping piece; 40, clamping gap; 200, support plate; 201, top surface; 202, bottom surface; 300, support column; 400, first fastener; 500, chassis; 501, bottom plate; 502, support shaft; 503, U-shaped plate; 600, second fastener; 700, clamping mechanism; 701, hose; 702, clamp; 800, rotating shaft; 2000, pipeline. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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.

[0048] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0050] See also Figure 1 In one embodiment of the present application, a clamp 100 is provided for clamping a pipe 2000 to ensure that the pipe 2000 does not shift during welding and to ensure the position accuracy of the connection between two workpieces connected by welding. Specifically, the pipe 2000 clamped by the clamp 100 can be a copper pipe, a steel pipe, or an aluminum pipe.

[0051] Generally, copper tubes are welded and fixed by flame brazing between copper tubes or between copper tubes and stainless steel tubes. Brazing refers to a welding method in which the brazing material and the base material are heated together at a temperature lower than the base material but higher than the melting point of the brazing material, the brazing material melts while the base material does not melt, and the molten brazing material diffuses and fills the gap of the brazing seam to form a firm joint through the principle of capillary action. Flame brazing is a welding method that uses the flame generated by the combustion of gas mixed with oxygen or compressed air as a heat source. The temperature during welding is as high as six or seven hundred degrees Celsius to melt the brazing electrode. During welding, two workpieces are sleeved. Taking the welding of copper tubes as an example, one copper tube is inserted into the inside of another copper tube, and the insertion length is related to the diameter of the copper tube and is not less than 60% of the diameter of the copper tube. Of course, in some other embodiments, tin soldering, electric welding or argon arc welding can also be used between the pipelines 2000. During argon arc welding, the general connection strength can be guaranteed by directly butting the two workpieces. Some automated production lines also use (high-frequency) induction welding to weld copper tubes. Its principle is to use an electromagnetic field to generate a high-frequency induced current. The current generates heat in the coil, and the heat melts the copper tube and flux, and the flux fills the gap.

[0052] It should be noted here that the structure formed by multiple workpieces (copper tubes or some welded devices) is called a workpiece module. When the equipment includes complex pipelines 2000 and devices, it can be divided into multiple workpiece modules for welding, and finally the multiple workpiece modules are welded together.

[0053] Continue reading Figure 1 The fixture 100 includes a base 10 and a cover plate 20. The base 10 is provided with a receiving groove 11 at one end in the first direction, and the receiving groove 11 penetrates the base 10 along the second direction, so that the pipeline 2000 passes through along the second direction and is received in the receiving groove 11. The first direction intersects with the second direction. Specifically, the first direction is perpendicular to the second direction. Figure 1 The Z direction is the first direction, Figure 1 The Y direction is the second direction. The cover plate 20 has an avoidance state and a pressing state, see Figure 1 and Figure 2 When the cover plate 20 is in the avoidance state, the cover plate 20 avoids the pipeline 2000 so that the pipeline 2000 can be accommodated in the accommodation groove 11, that is, when the cover plate 20 is in the avoidance state, the cover plate 20 will not interfere with the pipeline 2000 being accommodated in the accommodation groove 11.

[0054] The clamp 100 further includes a locking mechanism 30, which is mounted on the base 10. Figure 3When the cover plate 20 is in the pressed state, the cover plate 20 is pressed against the pipeline 2000 accommodated in the accommodation groove 11, the locking mechanism 30 locks the cover plate 20 on the base 10, and the pipeline 2000 is clamped between the base 10 and the cover plate 20 along the first direction. That is, when the cover plate 20 is in the pressed state, the locking mechanism 30 can apply a force to the cover plate 20, so that the cover plate 20 is fixed relative to the base 10 and the cover plate 20 is locked on the base 10, and at this time, the pipeline 2000 is clamped under the action of the cover plate 20 and the base 10.

[0055] The clamp 100 provided in the embodiment of the present application, when it is necessary to clamp the pipeline 2000, places the pipeline 2000 in the accommodating groove 11, and the cover plate 20 switches from the avoidance state to the clamping state. In the clamping state, the locking mechanism 30 locks the cover plate 20 on the base 10. At this time, the pipeline 2000 is respectively abutted against the base 10 and the cover plate 20 at both ends in the first direction, and the cover plate 20 and the base 10 cooperate to clamp the pipeline 2000 in the first direction to prevent the pipeline 2000 from shifting and ensure the welding quality. At the same time, the clamp 100 provided in the present application, when clamping the pipeline 2000, relies on the clamping force formed by the cover plate 20 and the base 10 to clamp the pipeline 2000. The base 10 is a non-elastic part 322. Compared with the method in the prior art where the pipeline 2000 is fixed in the clamping mouth by the elastic force of the elastic clamping parts on both sides, the base 10 will not undergo elastic deformation when subjected to external force, and it is not easy to cause the pipeline 2000 to shift in the clamp 100, thereby avoiding excessive clearance between the pipelines 2000, thereby improving the welding quality.

[0056] Optionally, the base 10 is a rectangular block structure, the first direction is the height direction of the base 10, and the second direction is the width direction of the base 10. It should be understood that in some other embodiments, the shape of the base 10 is not specifically limited, and the first direction and the second direction are not specifically limited.

[0057] Further reading Figure 3 When the cover plate 20 is in a compressed state, the orthographic projection of the cover plate 20 toward the receiving groove 11 covers at least a portion of the receiving groove 11. In this way, when the cover plate 20 is in a compressed state, it is opposite to at least a portion of the bottom wall of the receiving groove 11, and the pipeline 2000 can be clamped under the action of the bottom wall of the receiving groove 11 and the cover plate 20, so as to avoid the cover plate 20 from contacting the pipeline 2000 at a position misaligned with the receiving groove 11, thereby avoiding the pipeline 2000 from tilting and ensuring the position accuracy.

[0058] The size of the receiving groove 11 in the third direction and the size in the first direction are selected as needed. Optionally, the size of the receiving groove 11 in the third direction is larger than the size in the first direction, so that the pipeline 2000 can be accommodated in the receiving groove 11, and the height of the pipeline 2000 in the first direction is flush with the surface of the base 10. The first direction, the second direction and the third direction intersect each other. Specifically, the first direction, the second direction and the third direction are perpendicular to each other. When the base 10 is a rectangular block structure, the third direction is the length direction of the base 10. Figure 1 The X direction is the third direction.

[0059] With the above arrangement, when the cover plate 20 is in a compressed state, the cover plate 20 is in contact with the surface of the base 10 and the pipeline 2000 , avoiding a gap between the cover plate 20 and the base 10 that causes the cover plate 20 to shake relative to the base 10 , thereby ensuring the clamping effect of the pipeline 2000 .

[0060] It should be noted that, generally, the size of the receiving groove 11 is set according to the diameter of the clamped pipe 2000, and its size in the third direction is larger than the diameter of the pipe 2000, and its size in the first direction is equal to the diameter of the pipe 2000. For example, the size of the receiving groove 11 in the third direction is slightly larger than the diameter of the pipe 2000 by 0.5 mm. Of course, in some other embodiments, the size of the receiving groove 11 can also be set in other ways, as long as the purpose of accommodating the pipe 2000 can be achieved.

[0061] It should also be noted that the diameter of the pipeline 2000 is the outer diameter of the pipeline 2000, which is generally metric or imperial. The metric system is generally integers such as 2, 3, 4, 5...n, in mm, and the imperial system is generally 1 / 4'mm (ie 6.35mm), 3 / 8'mm (9.52mm), etc.

[0062] In some embodiments, see Figure 4 , the cover plate 20 and the base 10 can be separated. Specifically, when the cover plate 20 is in the avoidance state, the cover plate 20 and the base 10 are in a separated state. When the cover plate 20 is in the pressing state, the cover plate 20 is locked on the base 10 under the action of the locking mechanism 30. In this way, the cover plate 20 can be switched between the avoidance state and the pressing state without connecting the cover plate 20 and the base 10 together, which is flexible and convenient.

[0063] In some other embodiments, see Figure 5 The cover plate 20 is movably mounted on the base 10 and can move relative to the base 10, so that the cover plate 20 switches between the avoidance state and the pressing state. Since the cover plate 20 is mounted on the base 10, when the base 10 moves, the cover plate 20 moves synchronously with the base 10 to avoid the cover plate 20 from being lost.

[0064] In some specific implementations, please refer to Figure 5 The cover plate 20 is disposed at one end of the base 10 having the receiving groove 11 in the first direction, and can rotate relative to the base 10 around a first axis extending along the first direction, so that the cover plate 20 switches between the avoidance state and the pressing state. Of course, in some other embodiments, the cover plate 20 can also be slidably disposed on the base 10 to switch between the avoidance state and the pressing state, which is not limited here.

[0065] In some embodiments, see Figure 3 , two locking mechanisms 30 are provided on the base 10, and the two locking mechanisms 30 are respectively located on both sides of the receiving groove 11 in the third direction, and the two locking mechanisms 30 are both located at one end of the base 10 where the receiving groove 11 is provided in the first direction. When the cover plate 20 is in a compressed state, the cover plate 20 is locked on the cover plate 20 under the action of the two locking mechanisms 30. Under the action of the two locking mechanisms 30, the locking effect of the cover plate 20 on the base 10 is guaranteed. Of course, in some other embodiments, the number of the locking mechanisms 30 is not limited, such as one.

[0066] In some embodiments, see Figure 2 and Figure 3 The locking mechanism 30 includes a fitting 31 and a clamping assembly 32. The fitting 31 is connected to the base 10, and the clamping assembly 32 is installed on the fitting 31. A card interface 21 is provided on the cover plate 20. When the cover plate 20 is in a clamped state, the cover plate 20 is clamped to the outside of the fitting 31 through the card interface 21, and the clamping assembly 32 clamps and locks the cover plate 20. In this way, when the cover plate 20 is in a clamped state, the cover plate 20 is clamped to the outside of the fitting 31 through the card interface 21, and then the clamping assembly 32 locks and clamps the cover plate 20, which reduces the displacement of the cover plate 20 relative to the base 10 and ensures the clamping effect of the clamping pipeline 2000.

[0067] It should be noted that when the cover plate 20 is in the avoidance state, it is separated from the fitting 31 so as not to interfere with the placement of the pipeline 2000 in the receiving groove 11 .

[0068] Optionally, the fitting 31 is a columnar structure, one end of which is connected to the base 10, and the other end of which extends away from the base 10 along the first direction, so that the cover 20 can be smoothly connected to the outside of the fitting 31 through the card interface 21. It can be understood that in some other embodiments, the shape of the fitting 31 is not limited.

[0069] Continue reading Figure 4The clamping assembly 32 includes a limiter 321, an elastic member 322 and a clamping member 323. The limiter 321, the elastic member 322 and the clamping member 323 are all installed on the fitting member 31, and the elastic member 322 is located between the limiter 321 and the clamping member 323. When the cover plate 20 is in the clamping state, the clamping member 323 clamps the cover plate 20 on the base 10 under the elastic force of the elastic member 322. That is, when it is necessary to clamp the pipeline 2000, the cover plate 20 is operated to switch from the avoidance state to the clamping state. At this time, the card interface 21 of the cover plate 20 is clamped on the outside of the fitting member 31. Since the cover plate 20 is between the base 10 and the clamping member 323, the elastic member 322 is deformed by force to generate elastic force and transmit the elastic force to the clamping member 323. The clamping member 323 presses the cover plate 20 on the base 10 under the elastic force. Specifically, the limiting member 321 and the pressing member 323 are both sheet-like structures. The elastic member 322 can be a spring, an elastic gasket, etc.

[0070] With the above arrangement, when the cover 20 is in a clamped state, the clamping member 323 can press the cover 20 onto the base 10 through the elastic force applied thereto by the elastic member 322. During this process, no other operations are required, and the cover 20 can be locked onto the base 10. The operation is convenient and the positioning is accurate.

[0071] It is understandable that in some other embodiments, the locking mechanism 30 can also use other methods to lock the cover 20 on the base 10, such as by snap-fitting.

[0072] Preferably, continue to refer to Figure 1 The outer peripheral surface of the end of the mating member 31 close to the base 10 is provided with a boss 311, and the end of the pressing member 323 close to the base 10 abuts against the boss 311, so that a clamping gap 40 is formed between the pressing member 323 and the base 10. When the cover plate 20 is in the clamping state, the cover plate 20 can be accommodated in the clamping gap 40, and the card interface 21 is clamped outside the boss 311. Since there is a clamping gap 40 between the clamping piece 323 and the base 10, the operator can clamp the cover 20 in the clamping gap 40 with one hand. The clamping piece 323 is squeezed by the cover 20 to deform the elastic piece 322 and generate elastic force. The clamping piece 323 can clamp the cover 20 under the action of the elastic force, avoiding two-handed operation (when no clamping gap 40 is set between the clamping piece 323 and the base 10, one hand is required to operate the cover 20, and the other hand is required to operate the clamping piece 323 to form a gap between the clamping piece 323 and the base 10, so that the cover 20 can be placed between the clamping piece 323 and the base 10). The operation is quick and convenient.

[0073] In some embodiments, see Figure 6The fitting part 31 includes a bolt 312 and a nut 313. The bolt 312 is connected to the base 10. The nut 313 is screwed on the end of the bolt 312 away from the base 10. The stopper 321 is located on the side of the nut 313 close to the base 10. With this arrangement, screwing the nut 313 facilitates adjusting the elastic force applied by the elastic part 322 to the pressing part 323, so that the pressing part 323 can lock the cover plate 20 on the base 10, thereby facilitating the pipeline 2000 to be clamped.

[0074] See also Figure 7 and Figure 8 Another embodiment of the present application further provides a welding fixture 1000, comprising a support plate 200, a support column 300, a first fastener 400 and at least one of the above-mentioned clamps 100. One end of the support column 300 is connected to the support plate 200, and the other end extends away from the support plate 200. Each clamp 100 is mounted on the corresponding support column 300 through the base 10. The axial and circumferential positions of the clamp 100 in the support column 300 are adjustable. When the base 10 is adjusted to a first target position relative to the support column 300, the first fastener 400 fixes the base 10 to the support column 300. Optionally, the first fastener 400 includes a fixing screw.

[0075] With the above arrangement, since the position of the clamp 100 in the axial and circumferential directions of the support column 300 is adjustable, the position between the clamped pipe 2000 and other pipes 2000 can be adjusted, thereby ensuring the position accuracy between the pipes 2000 welded to each other.

[0076] In some embodiments, see Figure 4 , the base 10 is provided with a first assembly hole 12 along the first direction, and the base 10 is sleeved on the external mechanism through the first assembly hole 12. In this embodiment, the base 10 is sleeved outside the support column 300 through the first assembly hole 12, and the base 10 can adjust its axial and circumferential position on the support column 300 through the first assembly hole 12. That is, when the base 10 is sleeved outside the support column 300 through the first assembly hole 12, the base 10 slides axially relative to the support column 300 and / or rotates circumferentially relative to the support column 300 through the first assembly hole 12, thereby adjusting the position of the base 10. When the base 10 is adjusted to the first target position, the first fastener 400 fixes the base 10 to the support column 300.

[0077] It should be noted that the first target position is a target position to which the base 10 is expected to be adjusted, and the number of the first target positions is not limited.

[0078] In some other embodiments, continue to refer to Figure 4 and Figure 5, the base 10 is provided with a second assembly hole 13 along the second direction, and the base 10 is sleeved on the external mechanism through the second assembly hole 13. In this embodiment, the base 10 is sleeved on the outside of the support column 300 through the second assembly hole 13, and the base 10 can adjust its axial and circumferential position on the support column 300 through the second assembly hole 13. That is, when the base 10 is sleeved on the outside of the support column 300 through the second assembly hole 13, the base 10 slides axially relative to the support column 300 and / or rotates circumferentially relative to the support column 300 through the second assembly hole 13, thereby adjusting the position of the base 10. When the base 10 is adjusted to the first target position, the first fastener 400 fixes the base 10 to the support column 300.

[0079] In some other embodiments, both the first assembly hole 12 and the second assembly hole 13 may be provided on the base 10 .

[0080] It should be noted that when the cover plate 20 is separately provided from the base 10 , an assembly hole may also be provided on the cover plate 20 so as to be sleeved outside the support column 300 .

[0081] Continue reading Figure 8 The welding fixture 1000 further includes a clamping mechanism 700, which includes a hose 701 and a clamp 702. One end of the hose 701 is connected to the support plate 200, and the clamp 702 is connected to the other end of the hose 701. The clamp 702 is configured to clamp a welding ventilation pipe or a cooling water pipe to keep the ventilation pipe or the cooling water pipe stable. Optionally, one end of the hose 701 is connected to the support plate 200 via a support column 300. For example, in some embodiments, the clamp 702 can clamp a nitrogen pipe to keep the nitrogen pipe stable.

[0082] The welding fixture 1000 further includes a base frame 500 and a second fastener 600. The support plate 200 is supported on the base frame 500, and the position of the support plate 200 relative to the base frame 500 is adjustable in a circumferential direction around a second axis extending in a horizontal direction. When the support plate 200 is adjusted to a second target position relative to the base frame 500, the second fastener 600 fixes the support plate 200 to the base frame 500.

[0083] With the above arrangement, when the position of the support plate 200 in the circumferential direction is adjusted relative to the base frame 500, the position of the clamp 100 installed on the support column 300 is also adjusted, so that the clamp 100 is at different positions in the above circumferential direction, which is convenient for operators to perform welding.

[0084] There is no limitation on the adjustment angle of the support plate 200 in the circumferential direction, for example, it can be adjusted to 90° or 180°, or it can be adjusted to other angles.

[0085] In some specific implementations, please refer to Figure 7 The base frame 500 includes a bottom plate 501, a U-shaped plate 503 and a support shaft 502. One end of each support shaft 502 is connected to the bottom plate 501, and the other end extends away from the bottom plate 501. The top ends of two support shafts 502 are provided with U-shaped plates 503, and the U-shaped openings of the U-shaped plates 503 face upward. The support plate 200 is connected with a rotating shaft 800. The rotating shaft 800 is supported on the two U-shaped plates 503. The position of the rotating shaft 800 in the U-shaped plate 503 in the circumferential direction is adjustable to adjust the angle of the fixture 100.

[0086] Optionally, the cross section of the rotating shaft 800 is formed as a square. When the surface of the rotating shaft 800 facing away from the support plate 200 contacts the bottom surface of the U-shaped plate 503 facing the opening, the support plate 200 is arranged horizontally and the front side 201 faces upward. When the side of the rotating shaft 800 contacts the bottom surface of the U-shaped plate 503, the support plate 200 is arranged vertically. When the surface of the rotating shaft 800 facing the support plate 200 contacts the bottom surface of the U-shaped plate 503, the support plate 200 is arranged horizontally and the reverse side 202 faces upward. When the position of the rotating shaft 800 is adjusted, the second fastener 600 fixes the rotating shaft 800 to the U-shaped plate 503. Optionally, the second fastener 600 is a fixing screw.

[0087] Of course, in some other embodiments, the cross-sectional shape of the rotating shaft 800 may also be set to be circular, which is not limited here.

[0088] It should be noted that, in some other embodiments, there is no limitation on the disposition of the base frame 500 , and there is no limitation on how to adjust the position of the support plate 200 relative to the base frame 500 in the circumferential direction.

[0089] Optionally, the base frame 500 includes three support shafts 502, which are arranged in a triangle shape, and another support shaft 502 is used to abut against the support plate 200 to reset it to an initial position. When the support plate 200 is in the initial position, the support plate 200 is arranged horizontally and the front side 201 faces upward. In this way, when the support plate 200 is in the initial position, it can maintain stability under the support of the three support shafts 502 without the second fastener 600 to fix the support plate 200 to the base frame 500. At this time, the process of connecting the support plate 200 to the bottom clamp 500 by the second fastener 600 can be reduced, thereby improving work efficiency.

[0090] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A clamp, characterized in that: include: A base (10) is provided with a receiving groove (11) at one end in a first direction, the receiving groove (11) penetrating the base (10) in a second direction so that a pipeline (2000) can pass through in the second direction and be received in the receiving groove (11); the first direction intersects with the second direction; The cover plate (20) has a evading state and a pressing state; when the cover plate (20) is in the evading state, the cover plate (20) evades the pipeline (2000) so that the pipeline (2000) is accommodated in the accommodation groove (11); A locking mechanism (30) is mounted on the base (10); when the cover plate (20) is in the pressed state, the cover plate (20) is pressed on the pipeline (2000) accommodated in the accommodation groove (11), and the locking mechanism (30) locks the cover plate (20) on the base (10), and the pipeline (2000) is clamped between the base (10) and the cover plate (20) along the first direction.

2. The clamp according to claim 1, characterized in that: The cover plate (20) and the base (10) can be detachably arranged; or The cover plate (20) is movably mounted on the base (10) and is capable of moving relative to the base (10), so that the cover plate (20) can switch between the avoidance state and the pressing state.

3. The clamp according to claim 2, characterized in that: The cover plate (20) is arranged at one end of the base (10) having the accommodating groove (11) in the first direction, and is capable of rotating relative to the base (10) around a first axis extending along the first direction.

4. The clamp according to claim 1, characterized in that: The locking mechanism (30) comprises a matching piece (31) and a pressing assembly (32), wherein the matching piece (31) is connected to the base (10), and the pressing assembly (32) is installed on the matching piece (31); The cover plate (20) is provided with a card interface (21). When the cover plate (20) is in the clamped state, the cover plate (20) is clamped to the outside of the matching piece (31) through the card interface (21), and the clamping assembly (32) clamps and locks the cover plate (20).

5. The clamp according to claim 4, characterized in that: The matching piece (31) is a columnar structure; and / or The clamping assembly (32) comprises a limiting member (321), an elastic member (322) and a clamping member (323); the limiting member (321) is mounted on the matching member (31); the elastic member (322) is located between the limiting member (321) and the clamping member (323); when the cover plate (20) is in the clamping state, the clamping member (323) presses the cover plate (20) onto the base (10) under the elastic force of the elastic member (322).

6. The clamp according to claim 5, characterized in that: A boss (311) is provided on the outer peripheral surface of one end of the matching member (31) close to the base (10), and one end of the pressing member (323) close to the base (10) abuts against the boss (311), so that a clamping gap (40) is formed between the pressing member (323) and the base (10); The cover plate (20) can be accommodated in the clamping gap (40), and the clamping interface (21) is clamped outside the boss (311).

7. The clamp according to claim 5, characterized in that: The matching member (31) comprises a bolt (312) and a nut (313), wherein the bolt (312) is connected to the base (10), the nut (313) is screwed on an end of the bolt (312) away from the base (10), and the limiting member (321) is located on a side of the nut (313) close to the base (10); The size of the elastic force applied by the elastic member (322) to the pressing member can be adjusted by screwing the nut (313).

8. The clamp according to claim 1, characterized in that: The base (10) is provided with two locking mechanisms (30), and the two locking mechanisms (30) are respectively located on two sides of the receiving groove (11) in the third direction; the first direction, the second direction and the third direction intersect each other; when the cover plate (20) is in the pressed state, the cover plate (20) is locked on the cover plate (20) under the action of the two locking mechanisms (30); and / or When the cover plate (20) is in the compressed state, the orthographic projection of the cover plate (20) toward the receiving groove (11) covers at least a portion of the receiving groove (11).

9. The clamp according to claim 1, characterized in that: The base (10) is provided with a first assembly hole (12) extending through the first direction, the base (10) can be sleeved on an external mechanism through the first assembly hole (12), and the position of the base (10) relative to the external mechanism can be adjusted through the first assembly hole (12); and / or The base (10) is provided with a second assembly hole (13) extending through the second direction, and the base (10) can be sleeved on an external mechanism through the second assembly hole (13), and the position of the base (10) relative to the external mechanism can be adjusted through the second assembly hole (13).

10. A welding fixture, characterized in that: It comprises a support plate (200), a support column (300), a first fastener (400) and at least one clamp according to any one of claims 1 to 9; One end of the support column (300) is connected to the support plate (200), and the other end extends away from the support plate (200). Each of the clamps is installed on one of the support columns (300) through the base (10). The axial position and circumferential position of the clamp on the support column (300) are adjustable. When the base (10) is adjusted to a first target position relative to the support column (300), the first fastener (400) fixes the base (10) to the support column (300).

11. The welding fixture according to claim 10, characterized in that: The welding and fixing device further comprises a base frame (500) and a second fastener (600), the support plate (200) is supported on the base frame (500), and the position of the support plate (200) relative to the base frame (500) is adjustable in a circumferential direction around a second axis extending in a horizontal direction; When the support plate (200) is adjusted to a second target position relative to the base frame (500), the second fastener (600) fixes the support plate (200) to the base frame (500).

12. The welding fixture according to claim 10, characterized in that: The welding fixing device also includes a clamping mechanism (700), the clamping mechanism (700) includes a hose (701) and a clamp (702), one end of the hose (701) is connected to the support plate (200), the clamp (702) is connected to the other end of the hose (701), and the clamp (702) is configured to clamp a welding ventilation pipe or a cooling water pipe.

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