Clamp for welding

Abstract

The utility model relates to the technical field of clamps, and discloses a welding clamp which comprises a supporting frame, a supporting seat, a first cam bearing, an air cylinder, a supporting plate, a bending plate, a movable seat, a second cam bearing and an extension spring. In the using process, after two sections of steel pipes are placed on the first cam bearings, the air cylinders are controlled to work, the second cam shafts on the two sides can abut against the two sections of steel pipes respectively, and the extension springs on the two sides are in a stretched state. And therefore, the two sections of steel pipes are clamped and fixed between the first cam bearings on the two sides and the first cam bearings on the two sides, and the butt joint work of the two sections of steel pipes is completed. In addition, due to the fact that the bent plates on the two sides can slide relative to the supporting plate in the length direction of the supporting frame, the distance between the second cam bearings on the two sides can be adjusted. Therefore, the middle parts of the two sections of steel pipes with different lengths can be pressed all the time to prevent the two sections of the two sections of steel pipes from tilting, and the butt joint effect of the two sections of steel pipes is improved.

Description

Technical Field

[0001] The present application relates to the technical field of clamps, for example, to a welding clamp. Background Art

[0002] The related technology (Announcement No.: CN220659800U) discloses a welding fixture, including a mounting base, a supporting roller, a steel pipe to be welded, a supporting arm, an adjusting screw, a transmission frame, a positioning pressure roller, a transmission synchronous wheel, a mounting frame, a transmission shaft, an active synchronous wheel, a synchronous transmission toothed belt, a transmission sleeve, a driving mechanism, a driving block, a compression spring and an adjusting disk.

[0003] In the process of implementing the above embodiments, it is found that there are at least the following problems in the related art:

[0004] During use, the welding fixture can adjust the positions of the positioning rollers on both sides by rotating the adjusting screw, so that the rollers can press the two ends of the steel pipes placed on the multiple cam bearing rollers to clamp and fix the two sections of steel pipes to be welded. However, since the distance between the positioning rollers on both sides cannot be adjusted, when the two sections of steel pipes are long or short, the middle part of the two sections of steel pipes cannot be pressed. As a result, the ends of the two sections of steel pipes away from the positioning rollers on both sides are prone to warping, which in turn affects the butt joint effect of the two sections of steel pipes.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The disclosed embodiment provides a welding fixture to improve the butt joint effect of two sections of steel pipes.

[0008] In some embodiments, the welding fixture comprises: a support frame, wherein the plane where the top wall of the support frame is located is parallel to the plane where the bottom wall of the support frame is located; a support seat, located between the top wall and the bottom wall of the support frame, and evenly installed on the bottom wall of the support frame along the length direction of the support frame; a first cam bearing, respectively installed on each of the support seats, and respectively located on both sides of each of the support seats along the width direction of the support frame; a cylinder, installed on the top wall of the support frame along the height direction of the support frame, and the moving end of the cylinder faces the bottom wall of the support frame; a support plate , installed at the moving end of the cylinder; a bending plate, slidably installed on the support plate along the length direction of the support frame, and located on both sides of the support plate; a movable seat, slidably installed on the bending plates on both sides along the height direction of the support frame; a second cam bearing, respectively installed on each of the movable seats, and respectively located on both sides of each of the movable seats along the width direction of the support frame; a tension spring, respectively installed between the movable seat and the bending plate on the same side; wherein, under the pulling of the tension springs on both sides, the movable seats on both sides have a tendency to move toward the bottom wall of the support frame.

[0009] Optionally, it also includes: a first guide rail, installed on the bottom surface of the support plate along the length direction of the support frame; a first slider, slidably installed on the first guide rail, and located on both sides of the first guide rail along the length direction of the support frame; wherein the bending plates on both sides are installed on the first sliders on both sides.

[0010] Optionally, it also includes: guide rail clamps, which are respectively installed on the bending plates on both sides and are used to clamp or loosen the first guide rail.

[0011] Optionally, it further includes: first limiting plates, respectively installed at two ends of the first guide rail.

[0012] Optionally, it also includes: a second guide rail, which is respectively installed on the bending plates on both sides along the height direction of the support frame; a second slider, which is slidably installed on the second guide rails on both sides; wherein the movable seats on both sides are respectively installed on the second sliders on both sides.

[0013] Optionally, it further includes: second limiting plates, respectively installed at two ends of the second guide rails on both sides.

[0014] Optionally, it also includes: a dual-axis motor, which is installed on the bottom surface of the support plate along the length direction of the support frame and is located between the bending plates on both sides; and a driving wheel, which is respectively installed on the two rotating ends of the dual-axis motor.

[0015] Optionally, it further includes: a linear optical axis, which is slidably arranged on the top wall of the support frame along the height direction of the support frame and is connected to the support plate.

[0016] Optionally, it also includes: a linear bearing, which is slidably mounted on the linear optical axis and installed on the top wall of the support frame.

[0017] A welding fixture provided by an embodiment of the present disclosure can achieve the following technical effects:

[0018] A welding fixture provided by an embodiment of the present disclosure includes a support frame, a support seat, a first cam bearing, a cylinder, a support plate, a bending plate, a movable seat, a second cam bearing and a tension spring. The support frame is used to support the entire device. The plane where the top wall of the support frame is located is parallel to the plane where the bottom wall of the support frame is located, and is respectively used to support and install related parts of the device. The support seat is located between the top wall and the bottom wall of the support frame, and is evenly installed on the bottom wall of the support frame along the length direction of the support frame, and is respectively used to support and install the first cam bearing. The first cam bearing is respectively installed on each support seat, and is respectively located on both sides of each support seat along the width direction of the support frame, and is respectively used to support two sections of steel pipes. The cylinder is installed on the top wall of the support frame along the height direction of the support frame, and the moving end of the cylinder faces the bottom wall of the support frame to provide driving force. The support plate is installed on the moving end of the cylinder, and moves in the direction of the bottom wall of the support frame driven by the cylinder. The bending plate can be slidably installed on the support plate along the length direction of the support frame, and is located on both sides of the support plate, and the bending plates on both sides can slide relative to the support plate along the length direction of the support frame. The movable seat can be slidably installed on the bending plates on both sides along the height direction of the support frame, and the movable seats on both sides can slide relative to the bending plates on both sides along the height direction of the support frame. The second cam bearing is installed on each movable seat, and is located on both sides of each movable seat along the width direction of the support frame, respectively, and is used to compress two sections of steel pipes. The tension springs are installed between the movable seat and the bending plate on the same side, respectively, and are used to provide tension. Among them, under the pulling of the tension springs on both sides, the movable seats on both sides have a tendency to move toward the bottom wall of the support frame, so that the two sections of steel pipes can be compressed under the action of the tension.

[0019] During use, after placing two sections of steel pipes on multiple first cam bearings, the cylinder is controlled to work, which can drive the support plate to move in the direction of the bottom wall of the support frame. Since the movable seats on both sides can slide relative to the bending plates on both sides along the height direction of the support frame, when the multiple second cam bearings on both sides are respectively against the two sections of steel pipes, the tension springs on both sides can be in a stretched state. Thereby, the pulling force is provided respectively, so that the two sections of steel pipes are clamped and fixed between the multiple first cam bearings and the multiple first cam bearings on both sides, and the docking of the two sections of steel pipes is completed. In addition, since the bending plates on both sides can slide relative to the support plate along the length direction of the support frame, the spacing between the multiple second cam bearings on both sides can be adjusted. In this way, the middle part of the two sections of steel pipes of different lengths can be always pressed to avoid the two sections of the two sections of steel pipes from tilting up, thereby improving the docking effect of the two sections of steel pipes.

[0020] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0022] Figure 1 It is a schematic diagram of the main structure of a welding fixture provided by an embodiment of the present disclosure;

[0023] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0024] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at the middle BB;

[0025] Figure 4 It is a schematic diagram of the rear structure of a welding fixture provided in an embodiment of the present disclosure.

[0026] Reference numerals:

[0027] 1: Support frame; 2: Support seat; 3: First cam bearing; 4: Cylinder; 5: Support plate; 6: Bending plate; 7: Movable seat; 8: Second cam bearing; 9: Tension spring; 10: First guide rail; 11: First slider; 12: Guide rail clamp; 13: Second guide rail; 14: Second slider; 15: Dual-axis motor; 16: Driving wheel; 17: Linear optical axis; 18: Linear bearing. DETAILED DESCRIPTION

[0028] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0029] The terms "first", "second", etc. in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0031] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0032] Unless otherwise stated, the term "plurality" means two or more.

[0033] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0034] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0035] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0036] Combination Figures 1 to 4As shown, the embodiment of the present disclosure provides a welding fixture, including a support frame 1, a support seat 2, a first cam bearing 3, a cylinder 4, a support plate 5, a bending plate 6, a movable seat 7, a second cam bearing 8 and a tension spring 9. The support frame 1 is used to support the entire device. The plane where the top wall of the support frame 1 is located is parallel to the plane where the bottom wall of the support frame 1 is located, and is respectively used to support and install related parts of the device. The support seat 2 is located between the top wall and the bottom wall of the support frame 1, and is evenly installed on the bottom wall of the support frame 1 along the length direction of the support frame 1, and is respectively used to support and install the first cam bearing 3. The first cam bearing 3 is respectively installed on each support seat 2, and is respectively located on both sides of each support seat 2 along the width direction of the support frame 1, and is respectively used to support two sections of steel pipes. The cylinder 4 is installed on the top wall of the support frame 1 along the height direction of the support frame 1, and the moving end of the cylinder 4 faces the bottom wall of the support frame 1 to provide driving force. The support plate 5 is installed on the moving end of the cylinder 4, and moves in the direction of the bottom wall of the support frame 1 driven by the cylinder 4. The bending plate 6 is slidably installed on the support plate 5 along the length direction of the support frame 1, and is located on both sides of the support plate 5. The bending plates 6 on both sides can slide relative to the support plate 5 along the length direction of the support frame 1. The movable seat 7 is slidably installed on the bending plates 6 on both sides along the height direction of the support frame 1, and the movable seats 7 on both sides can slide relative to the bending plates 6 on both sides along the height direction of the support frame 1. The second cam bearing 8 is installed on each movable seat 7, and is located on both sides of each movable seat 7 along the width direction of the support frame 1, respectively, and is used to compress two sections of steel pipes. The tension spring 9 is installed between the movable seat 7 and the bending plate 6 on the same side, respectively, and is used to provide tension. Among them, under the pulling of the tension springs 9 on both sides, the movable seats 7 on both sides have a tendency to move toward the bottom wall of the support frame 1, so that under the action of the tension, the two sections of steel pipes can be compressed.

[0037] A welding fixture provided by the embodiment of the present disclosure can drive the support plate 5 to move in the direction of the bottom wall of the support frame 1 after placing two sections of steel pipes on multiple first cam bearings 3 and controlling the cylinder 4 to work. Since the movable seats 7 on both sides can slide relative to the bending plates 6 on both sides along the height direction of the support frame 1, the tension springs 9 on both sides can be in a stretched state after the multiple second cam bearings 8 on both sides respectively abut against the two sections of steel pipes. Thus, the tension is provided respectively, so that the two sections of steel pipes are clamped and fixed between the multiple first cam bearings 3 and the multiple first cam bearings 3 on both sides, and the docking work of the two sections of steel pipes is completed. In addition, since the bending plates 6 on both sides can slide relative to the support plate 5 along the length direction of the support frame 1, the spacing between the multiple second cam bearings 8 on both sides can be adjusted. Thus, the middle part of the two sections of steel pipes of different lengths can be always pressed to avoid the two sections of the two sections of steel pipes from tilting up, thereby improving the docking effect of the two sections of steel pipes.

[0038] Optionally, combined Figure 1 , Figure 2 and Figure 4 As shown, the first guide rail 10 and the first slider 11 are also included. The first guide rail 10 is installed on the bottom surface of the support plate 5 along the length direction of the support frame 1, and is used to support and install the slidable first slider 11. The first slider 11 is slidably installed on the first guide rail 10, and is located on both sides of the first guide rail 10 along the length direction of the support frame 1. The first sliders 11 on both sides and the first guide rail 10 together play a guiding and supporting role. Among them, the bending plates 6 on both sides are respectively installed on the first sliders 11 on both sides.

[0039] In the disclosed embodiment, the first guide rail 10 and the first sliders 11 on both sides play a guiding and supporting role together, so that the bending plates 6 on both sides can slide relative to the support plate 5 along the length direction of the support frame 1. Finally, the spacing adjustment function of the multiple second cam bearings 8 on both sides is achieved, so that the middle parts of the two sections of steel pipes with different lengths can be pressed at all times.

[0040] Optionally, combined Figure 1 , Figure 2 and Figure 4 As shown, it also includes a guide rail clamp 12. The guide rail clamps 12 are respectively installed on the bending plates 6 on both sides, and are used to clamp or loosen the first guide rail 10.

[0041] In the embodiment of the present disclosure, guide rail clamps 12 are also included, which are respectively installed on the two side bending plates 6. The two side guide rail clamps 12 are used to clamp or loosen the first guide rail 10. When the two side guide rail clamps 12 loosen the first guide rail 10, the positions of the two side bending plates 6 can be adjusted. When the two side guide rail clamps 12 clamp the first guide rail 10, the positions of the two side bending plates 6 can be determined.

[0042] Optionally, combined Figure 1 and Figure 4 As shown, the first guide rail 10 further includes a first limiting piece. The first limiting pieces are respectively installed at both ends of the first guide rail 10.

[0043] In the embodiment of the present disclosure, first limiting pieces are also installed at both ends of the first guide rail 10. The first limiting pieces at both ends are used to limit the position to prevent the first sliders 11 at both ends from falling off the first guide rail 10.

[0044] Optionally, combined Figure 1 , Figure 2 and Figure 4 As shown, it also includes a second guide rail 13 and a second slider 14. The second guide rail 13 is respectively installed on the bending plates 6 on both sides along the height direction of the support frame 1, and is respectively used to support and install the second slider 14. The second slider 14 is respectively slidably installed on the second guide rails 13 on both sides, and together plays the role of guiding and supporting. Among them, the movable seats 7 on both sides are respectively installed on the second sliders 14 on both sides.

[0045] In the disclosed embodiment, the second guide rails 13 and the second slider 14 on both sides are used to play the role of guiding support, so that the movable seats 7 on both sides can slide relative to the bending plates 6 on both sides along the height direction of the support frame 1. Thereby, the tension springs 9 on both sides can be stretched to provide tension. In addition, the tension springs 9 on both sides can play a buffering role to reduce the instantaneous impact force of the cylinder 4. At the same time, since the clamping force on the two sections of steel pipes is the tension generated by the deformation of the tension springs 9 on both sides, excessive clamping force can be avoided. While ensuring the clamping effect of the two sections of steel pipes, it is convenient to drive the two sections of steel pipes to rotate so as to weld the entire circumferential joint.

[0046] Optionally, combined Figure 1 , Figure 2 and Figure 4 As shown, the second limiting piece is also included. The second limiting piece is respectively installed at two ends of the second guide rails 13 on both sides.

[0047] In the embodiment of the present disclosure, second limiting pieces are also installed at both ends of the second guide rails 13. The plurality of limiting pieces are used to limit the position to prevent the second sliders 14 on both sides from falling off from the second guide rails 13 on both sides.

[0048] Optionally, combined Figure 1 As shown, it also includes a dual-axis motor 15 and a driving wheel 16. The dual-axis motor 15 is installed on the bottom surface of the support plate 5 along the length direction of the support frame 1 and is located between the two side bending plates 6 to provide driving force. The driving wheel 16 is respectively installed at the two rotating ends of the dual-axis motor 15 and rotates under the drive of the dual-axis motor 15.

[0049] In the disclosed embodiment, after placing two sections of steel pipes on a plurality of first cam bearings 3, the cylinder 4 is controlled to work, so as to drive the support plate 5 to move in the direction of the bottom wall of the support frame 1, until the two drive wheels 16 respectively abut against the outer side surfaces of the two sections of steel pipes. Then, the dual-axis motor 15 is controlled to work, so as to drive the two drive wheels 16 to rotate. Under the action of friction, the two sections of steel pipes can be driven to rotate, so as to facilitate welding of the entire circumferential joint of the two sections of steel pipes.

[0050] Optionally, combined Figure 1 , Figure 2 and Figure 4 As shown, the support frame 1 further includes a linear optical axis 17. The linear optical axis 17 is slidably disposed on the top wall of the support frame 1 along the height direction of the support frame 1 and is connected to the support plate 5.

[0051] In the disclosed embodiment, a linear optical axis 17 is also included, which is slidable along the height direction of the support frame 1 and penetrates the top wall of the support frame 1 and is connected to the support plate 5. The linear optical axis 17 is used to play a guiding support role to improve the stability of the support plate 5 when it moves and reduce the radial force on the moving end of the cylinder 4.

[0052] Optionally, combined Figure 1 , Figure 2 and Figure 4 As shown, it also includes a linear bearing 18. The linear bearing 18 is slidably mounted on the linear optical axis 17 and installed on the top wall of the support frame 1.

[0053] In the disclosed embodiment, a linear bearing 18 is also included, which is slidably mounted on the linear optical axis 17 and installed on the top wall of the support frame 1. The linear bearing 18 is used to reduce the friction between the linear optical axis 17 and the top wall of the support frame 1 and improve the accuracy of the linear optical axis 17 when sliding relative to the bottom wall of the support frame 1.

[0054] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A welding fixture, characterized in that: include: A support frame, wherein a plane where the top wall of the support frame is located is parallel to a plane where the bottom wall of the support frame is located; A support seat, located between the top wall and the bottom wall of the support frame, and evenly installed on the bottom wall of the support frame along the length direction of the support frame; A first cam bearing is mounted on each of the support seats, and is located on both sides of each of the support seats along the width direction of the support frame; A cylinder is installed on the top wall of the support frame along the height direction of the support frame, and the moving end of the cylinder faces the bottom wall of the support frame; A support plate mounted on the moving end of the cylinder; A bending plate is slidably mounted on the support plate along the length direction of the support frame and is located on both sides of the support plate; A movable seat is slidably mounted on the bending plates at both sides along the height direction of the support frame; A second cam bearing is mounted on each of the movable seats, and is located on both sides of each of the movable seats along the width direction of the support frame; Tension springs are respectively installed between the movable seat and the bending plate on the same side; Wherein, under the pulling of the tension springs on both sides, the movable seats on both sides have a tendency to move toward the bottom wall of the support frame.

2. A welding fixture according to claim 1, characterized in that: Also includes: A first guide rail is installed on the bottom surface of the support plate along the length direction of the support frame; A first sliding block is slidably mounted on the first guide rail and is located on both sides of the first guide rail along the length direction of the support frame; Wherein, the bending plates on both sides are respectively installed on the first sliding blocks on both sides.

3. A welding fixture according to claim 2, characterized in that: Also includes: The guide rail clamps are respectively installed on the bending plates at both sides and are used to clamp or loosen the first guide rail.

4. A welding fixture according to claim 2, characterized in that: Also includes: The first limiting pieces are respectively installed at two ends of the first guide rail.

5. A welding fixture according to claim 1, characterized in that: Also includes: The second guide rails are respectively installed on the bending plates at both sides along the height direction of the support frame; A second sliding block is slidably mounted on the second guide rails on both sides; Wherein, the movable seats on both sides are respectively installed on the second sliding blocks on both sides.

6. A welding fixture according to claim 5, characterized in that: Also includes: The second limiting pieces are respectively installed at two ends of the second guide rails on both sides.

7. A welding fixture according to any one of claims 1 to 6, characterized in that: Also includes: A dual-axis motor is installed on the bottom surface of the support plate along the length direction of the support frame and is located between the bending plates on both sides; The driving wheels are respectively mounted on the two rotating ends of the dual-axis motor.

8. A welding fixture according to any one of claims 1 to 6, characterized in that: Also includes: The linear optical axis is slidably arranged on the top wall of the support frame along the height direction of the support frame, and is connected to the support plate.

9. A welding fixture according to claim 8, characterized in that: Also includes: The linear bearing is slidably mounted on the linear optical axis and installed on the top wall of the support frame.

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