Welding fixing device for machining mechanical parts

Abstract

The utility model belongs to the technical field of welding and fixing, and particularly relates to a welding and fixing device for machining mechanical parts, which comprises a welding base, a fixing device and a fixing device. A containing groove is formed in the center of the upper end face of the placing base to contain a pipe to be welded. A bearing on the placing seat is connected with a fastening piece, and the fastening piece is connected with an auxiliary piece; the clamping mechanisms are arranged on the upper end face of the welding base, located between the two containing bases and suitable for clamping the close ends of the two to-be-welded pipes. A rotating assembly is arranged in the clamping mechanism so as to drive the two pipes to rotate in the welding process. By arranging the rotating assembly, synchronous starting can be achieved in the welding process, the two pipes are made to rotate, the welding point position is adjusted in real time, the pipes do not need to be taken down from the clamp to adjust the welding point position, the structure is simple, and the welding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding and fixing, and in particular relates to a welding and fixing device for machining mechanical parts. Background Art

[0002] There are many types of welding machines, including single-point single-function, single-point dual-function, and single-point multi-function. This type of welding machine also has only one welding head. Different types of welding machines have different welding functions and work efficiency.

[0003] At present, when welding two round tube parts, it is necessary to fit the adjacent ends of the two tubes to be welded together, then clamp and fix the tubes through corresponding clamps, and finally start the welding machine to weld the parts; however, after the existing clamps clamp and fix the tubes, the position of the tubes is fixed. When performing multi-angle welding on the tube connection, it is necessary to remove the tubes from the clamps, rotate them, and clamp and weld them again. The operation is complicated and time-consuming, which reduces the welding efficiency.

[0004] Therefore, a welding fixture for machining mechanical parts is designed to solve the technical problem in the prior art that the pipes need to be disassembled and manually rotated to adjust the welding points when welding and connecting the pipes. Utility Model Content

[0005] The purpose of the utility model is to provide a welding fixture for machining mechanical parts to solve the above technical problems.

[0006] In order to solve the above technical problems, the utility model provides a welding fixture for machining mechanical parts, comprising:

[0007] The welding base has a placement seat on both sides of its upper end surface;

[0008] A receiving groove is provided in the center of the upper end surface of the placement seat to receive the pipe to be welded; and

[0009] The bearing on the placement seat is connected with a fastener, and the fastener is connected with an auxiliary part;

[0010] A pair of clamping mechanisms are respectively arranged on the upper end surface of the welding base and between the two placement seats, suitable for clamping the adjacent ends of the two pipes to be welded;

[0011] The clamping mechanism is provided with a rotating assembly to drive the two pipes to rotate during the welding process.

[0012] Further, the clamping mechanism comprises:

[0013] A clamping base is arranged on the upper end surface of the welding base, and a semicircular groove is provided on the upper end surface of the welding base to accommodate the lower half of the pipe to be welded;

[0014] The clamping top plate is connected to the clamping base through a sliding rod;

[0015] The lower end surface of the clamping top plate is provided with a semicircular groove to accommodate the upper half of the pipe to be welded.

[0016] Furthermore, a cylinder is provided inside the clamping base;

[0017] The output end of the cylinder is connected to the slide rod; and

[0018] The sliding rod passes through the upper end surface of the clamping base and is connected with the lower end surface of the clamping top plate.

[0019] Furthermore, the rotating assembly comprises:

[0020] The upper end surface of the clamping base is provided with a pair of symmetrical lower through grooves in the semicircular groove; and

[0021] Two active rotating wheels are arranged inside the clamping base and are respectively located in the lower through grooves;

[0022] A rotating shaft is connected to the center of each active rotating wheel, one end of the rotating shaft is connected to a bearing of the clamping base, and the other end passes through the clamping base.

[0023] Furthermore, a motor is provided on the outer side of the clamping base;

[0024] The output end of the motor is connected to one end of the rotating shaft passing through the clamping base via a belt.

[0025] Furthermore, a pair of auxiliary grooves are provided on the lower end surface of the clamping top plate, located on the semicircular groove;

[0026] A driven wheel is arranged in the auxiliary groove; and

[0027] A driven rod is arranged at the center of the driven wheel;

[0028] Both ends of the driven rod are connected to the inner wall bearings of the clamping top plate.

[0029] The beneficial effect of the utility model is that the utility model provides a clamping mechanism to preliminarily clamp the two pipes to be welded, thereby avoiding displacement during the welding process that affects the welding, and provides a rotating component that can be started synchronously during the welding process to rotate the two pipes and adjust the welding point in real time. There is no need to remove the pipe from the clamp to adjust the welding point, the structure is simple, and the welding efficiency is improved.

[0030] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0034] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0035] Figure 3 The utility model Figure 2 The enlarged structural diagram of part A in the middle;

[0036] Figure 4 The utility model Figure 2 The enlarged structural diagram of part B is shown in the figure.

[0037] In the figure:

[0038] 1. Welding base; 10. Placement seat; 11. Auxiliary parts; 12. Fasteners;

[0039] 2. Clamping mechanism; 20. Clamping base; 201. Rotating shaft; 202. Active rotating wheel; 203. Cylinder; 204. Sliding rod; 21. Clamping top plate; 211. Driven rod; 212. Driven wheel; 22. Motor; 23. Belt. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] At present, when welding two round tube parts, it is necessary to fit the adjacent ends of the two tubes to be welded together, then clamp and fix the tubes through corresponding clamps, and finally start the welding machine to weld the parts; however, after the existing clamps clamp and fix the tubes, the position of the tubes is fixed. When performing multi-angle welding on the tube connection, it is necessary to remove the tubes from the clamps, rotate them, and clamp and weld them again. The operation is complicated and time-consuming, which reduces the welding efficiency.

[0042] In order to solve the above technical problems, in at least one embodiment, a welding fixture for machining mechanical parts is provided, comprising: a welding base 1, on both sides of the upper end surface of which a placement seat 10 is arranged; wherein a receiving groove is provided in the center of the upper end surface of the placement seat 10 to accommodate the pipe 3 to be welded; and a fastener 12 is connected to the bearing on the placement seat 10, and an auxiliary part 11 is connected to the fastener 12; a pair of clamping mechanisms 2, which are respectively arranged on the upper end surface of the welding base 1 and located between the two placement seats 10, and are suitable for clamping the adjacent ends of the two pipes 3 to be welded; wherein a rotating component is arranged in the clamping mechanism 2 to drive the two pipes 3 to rotate during the welding process;

[0043] By providing a clamping mechanism, the two pipes to be welded can be initially clamped to avoid displacement during the welding process that affects the welding. By providing a rotating component, the two pipes can be started synchronously during the welding process to rotate the two pipes and adjust the welding point in real time. There is no need to remove the pipes from the clamp to adjust the welding point. The structure is simple and the welding efficiency is improved.

[0044] In some embodiments, Figure 1 As shown, the two pipes 3 to be welded are placed on the corresponding placement seat 10 and the clamping base 20 respectively, and the adjacent end faces of the two pipes 3 to be welded are fitted together. Then, the auxiliary part 11 is manually grasped to rotate it around the top of the placement seat 10, and the fastener 12 is connected to the auxiliary part 11. During the rotation of the auxiliary part 11, the fastener 12 is driven to be pressed on the top of the placement seat 10, so that the two limit the pipes 3 to be welded, and arc grooves are provided on the upper end face of the placement seat 10 and the lower end face of the fastener 12 to fit with the outer wall of the pipe 3 to be welded.

[0045] In some embodiments, after the pipe 3 to be welded is placed in the semicircular groove opened on the upper end surface of the clamping base 20, the cylinder 203 inside the clamping base 20 is started, and its output end drives the slide rod 204 for recovery. Since the top end of the slide rod 204 is fixed to the lower end surface of the clamping top plate 21, the clamping top plate 21 is driven to move downward until the semicircular groove opened on the lower end surface of the clamping top plate 21 fits with the outer wall of the pipe 3 to be welded, thereby further clamping and limiting the pipe 3 to be welded.

[0046] In some embodiments, as the operator is welding the connection between two pipes 3, when the welding point needs to be replaced, the motor 22 is started, and its output end drives the rotating shaft 201 to rotate through the belt 23, and the rotating shaft 201 drives the active rotating wheel 202 fixed thereon to rotate, and the active rotating wheel 202 is located in a through groove opened on the clamping base 20, and the active rotating wheel 202 is tangent to the semicircular groove opened on the upper end surface of the clamping base 20, that is, the active rotating wheel 202 is in contact with the outer wall of the pipe 3 to be welded at this time, and as the active rotating wheel 202 rotates, the pipe 3 to be welded is driven to rotate, so that the connection that has not yet been welded is rotated toward the staff, and there is no need to remove the pipe 3 to manually adjust the welding position, thereby improving the welding accuracy and simplifying the operation.

[0047] In some embodiments, in order to assist the rotation of the pipe 3, a pair of through grooves can be opened in the semicircular groove opened on the upper end surface of the clamping base 20, and a stack of active rotating wheels 202 are set. At the same time, for the clamping top plate, a pair of auxiliary grooves are opened in the semicircular groove opened on the lower end surface thereof, and a driven wheel 212 is set in the auxiliary groove. The setting of the driven wheel 212 is mirrored with the active rotating wheel 202 to form four wheels to clamp the pipe 3 to be welded. By rotating one of the active rotating wheels 202, the other three wheels are used to assist the pipe 3 to rotate.

[0048] In summary, by providing a clamping mechanism, the two pipes to be welded can be initially clamped to avoid displacement during the welding process that affects the welding. By providing a rotating component, the two pipes can be started synchronously during the welding process to rotate and adjust the welding point in real time. There is no need to remove the pipe from the clamp to adjust the welding point. The structure is simple and the welding efficiency is improved.

[0049] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A welding fixture for machining mechanical parts, characterized in that: include: The welding base has a placement seat on both sides of its upper end surface; A receiving groove is provided in the center of the upper end surface of the placement seat to receive the pipe to be welded; and The bearing on the placement seat is connected with a fastener, and the fastener is connected with an auxiliary part; A pair of clamping mechanisms are respectively arranged on the upper end surface of the welding base and between the two placement seats, suitable for clamping the adjacent ends of the two pipes to be welded; The clamping mechanism is provided with a rotating assembly to drive the two pipes to rotate during the welding process.

2. The welding fixture as claimed in claim 1, characterized in that: The clamping mechanism comprises: A clamping base is arranged on the upper end surface of the welding base, and a semicircular groove is provided on the upper end surface of the welding base to accommodate the lower half of the pipe to be welded; The clamping top plate is connected to the clamping base through a sliding rod; The lower end surface of the clamping top plate is provided with a semicircular groove to accommodate the upper half of the pipe to be welded.

3. The welding fixture as claimed in claim 2, characterized in that: A cylinder is arranged inside the clamping base; The output end of the cylinder is connected to the slide rod; and The sliding rod passes through the upper end surface of the clamping base and is connected with the lower end surface of the clamping top plate.

4. The welding fixture as claimed in claim 3, characterized in that: The rotating assembly comprises: The upper end surface of the clamping base is provided with a pair of symmetrical lower through grooves in the semicircular groove; and Two active rotating wheels are arranged inside the clamping base and are respectively located in the lower through grooves; A rotating shaft is connected to the center of each active rotating wheel, one end of the rotating shaft is connected to a bearing of the clamping base, and the other end passes through the clamping base.

5. The welding fixture as claimed in claim 4, characterized in that: A motor is arranged on the outside of the clamping base; The output end of the motor is connected to one end of the rotating shaft passing through the clamping base via a belt.

6. The welding fixture as claimed in claim 5, characterized in that: The lower end surface of the clamping top plate is provided with a pair of auxiliary grooves on the semicircular groove; A driven wheel is arranged in the auxiliary groove; and A driven rod is arranged at the center of the driven wheel; Both ends of the driven rod are connected to the inner wall bearings of the clamping top plate.

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