Welding tool for rotary friction welding

Abstract

The utility model relates to the technical field of automobile part machining, in particular to a welding tool for rotary friction welding, which comprises a bottom plate, a supporting plate is arranged above the bottom plate, a fixing groove and a connecting seat are arranged above the supporting plate, and the connecting seat is arranged on one side of the fixing groove. A fixing base is installed above the bottom plate through screws, a second motor is installed on one side of the fixing base through screws, a welding head is installed on one side of the second motor through screws, a supporting base is installed above the bottom plate through screws, and a shell of an air cylinder is installed on one side of the supporting base through screws. According to the improved welding tool, three positioning positions are arranged for fixing a part, the tail end of the first position can prevent the part from falling off, the clamping assembly is arranged in the middle, the part and the welding position can be located in the middle, the baffle is arranged on the contact face, vibration is avoided, tiny deviation is avoided, and accurate point alignment rotary welding can be conducted during welding.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile parts processing technical field, concretely is a kind of welding tool for rotary friction welding. BACKGROUND

[0002] Automobile parts are each unit constituting automobile whole and a kind of product serving automobile, and the types of automobile parts are various, with the improvement of people's living standards, people's consumption of automobile is more and more, and this market of automobile parts becomes more and more big, in recent years, automobile parts manufacturing factory is also developing rapidly.

[0003] Welding tool is a kind of auxiliary device used in the welding production process to ensure welding quality, improve labor productivity and improve working conditions, and welding tool is a set of flexible welding fixing, pressing, positioning Clamp . It is mainly used for welding various weldable Material Welding of large, medium and small materials.

[0004] The inventor found the following problems in the prior art in the process of implementing the utility model: 1. The friction welding process method has developed from several traditional forms to more than 20 forms, greatly expanding the application field of friction welding. Common friction welding processes include continuous drive friction welding, inertia friction welding, linear friction welding and friction stir welding. The shape of the welded part is expanded from the typical circular cross section to the non-circular cross section. Linear friction welding and plate material, and friction stir welding of metal materials from traditional metal materials to powder alloy and dissimilar material field. However, the current process is only suitable for large equipment and metal part processing, and the equipment occupies a large area. It is impossible to complete the processing of very small parts, and it is less likely to connect other plastic materials and joints through mechanical semi-automatic operation. It is applied to automobile part production and assembly. Manual adjustment is required for processing, and it is difficult to accurately fix small parts; 2. In the welding positioning process, although the positioning device is used to determine the position of the welded part, sometimes it is still disturbed by external factors, for example, when welding automobile frame, the vibration generated by the operation of other equipment in the workshop, personnel walking or lifting goods may cause the welded part to move slightly. The welding defects caused by inaccurate position of the welded part, such as uneven weld width, incomplete penetration and undercut, result in that the welded object cannot be accurately positioned and attached to the friction welded joint. CONTENT OF THE UTILITY MODEL

[0005] The utility model discloses a purpose lies in providing a kind of welding tool for rotary friction welding, to solve the problem that welding position is difficult to adhere to in above-mentioned background art when welding is disturbed by external factors, is slightly shaken and causes, part and welding head are not in same position, lead to.

[0006] The upper side of the bottom plate is equipped with a fixed seat by screwing, the one side of the fixed seat is equipped with a second motor by screwing, the one side of the second motor is equipped with a welding head by screwing, the upper side of the bottom plate is equipped with a support seat by screwing, the one side of the support seat is equipped with the shell of a cylinder by screwing, the rear of the cylinder is equipped with a baffle by screwing.

[0007] The one side of the fixed groove is equipped with the shell of a first motor by screwing, the one side output shaft of the first motor is equipped with a double-threaded screw rod by screwing, the outer wall of the double-threaded screw rod is equipped with a clamping plate by screwing, the inside of the clamping plate is equipped with a sliding rod.

[0008] Further preferably, the double-threaded screw rod forms a rotating structure through the first motor.

[0009] Further preferably, the internal structure size of the double-threaded screw rod is consistent with the external structure size of the clamping plate.

[0010] Further preferably, the two sides of the double-threaded screw rod are mirror-imaged and equipped with clamping plates, and the clamping plates form a horizontal structure through the double-threaded screw rod.

[0011] Further preferably, the sliding rod and the double-threaded screw rod are horizontally arranged and distributed.

[0012] Further preferably, the welding head forms a rotating structure through the second motor.

[0013] Further preferably, the baffle forms a horizontal sliding through the cylinder.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In the utility model, the tail end of the accessory is fixed between the connecting seats, the middle part is placed on the support plate, and the front end is placed in the fixed groove, the clamping plate is fixed with the parts simultaneously by the first motor driving the double thread screw rod, the all-around fixing of the small parts is realized, this fixing mode can effectively resist the interference of external factors, such as the vibration generated by the operation of other equipment, personnel walking or hoisting articles in the workshop, etc., for example, when welding the small parts of the automobile, the small displacement of the parts in the welding process can be ensured, thereby avoiding the welding defects caused by the inaccuracy of the welding position, such as the different width of the weld, incomplete penetration, undercut, etc., the welding part abuts against the baffle, and the stability of the welding position is further enhanced, the baffle not only can play the role of positioning in the welding process, but also can prevent the shaking of the parts during welding, for the automobile parts requiring high-precision welding, this improved fixing mode can greatly improve the welding precision, ensure the accurate positioning of the welded object and the friction welding joint, and thereby improve the quality and reliability of the automobile parts.

[0016] In the utility model, the operator only needs to place the accessory in the corresponding position, and the welding process can be completed by starting the equipment, for example, on the automobile part production assembly line, this semi-automatic operation mode can greatly improve the production efficiency and reduce the labor cost, the welding device can adapt to the welding of parts of different sizes through the adjustable connecting seat, support plate and fixed groove and other components, for the production of automobile parts, various shapes and sizes of parts often need to be welded, the improved device can be adjusted according to the size of the parts, and the adaptability and universality of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view structural schematic diagram of the utility model;

[0018] Figure 2 It is a top view structural schematic diagram of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the utility model above the bottom plate;

[0020] Figure 4 It is a structural schematic diagram of the fixed groove inside the utility model.

[0021] In the drawing: 1, bottom plate; 101, second motor; 102, air cylinder; 103, support seat; 104, baffle; 105, welding head; 106, fixed seat; 2, fixed groove; 201, sliding rod; 202, first motor; 203, double thread screw rod; 204, clamping plate; 3, support plate; 4, connecting seat. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0023] Please refer to Figures 1 to 4 The present application provides a technical solution: a welding tool for rotary friction welding, comprising a bottom plate 1, a support plate 3 arranged above the bottom plate 1, a fixed groove 2 and a connecting seat 4 arranged above the support plate 3, and a connecting seat 4 arranged on one side of the fixed groove 2.

[0024] A fixed seat 106 is arranged above the bottom plate 1 by screws, a second motor 101 is arranged on one side of the fixed seat 106 by screws, a welding head 105 is arranged on one side of the second motor 101 by screws, a support seat 103 is arranged above the bottom plate 1 by screws, an outer shell of a pneumatic cylinder 102 is arranged on one side of the support seat 103 by screws, and a baffle 104 is arranged at the rear of the pneumatic cylinder 102 by screws.

[0025] A first motor 202 is arranged on one side of the fixed groove 2 by screws, a double-threaded screw rod 203 is arranged on one side of the first motor 202 by screws, a clamping plate 204 is threadedly connected to the outer wall of the double-threaded screw rod 203, and a sliding rod 201 is attached to the inside of the clamping plate 204.

[0026] In the present embodiment, as shown in Figure 4 The double-threaded screw rod 203 constitutes a rotating structure through the first motor 202; the first motor 202 serves as a power source to drive the double-threaded screw rod 203 to rotate, and this rotation is a key step to fix the parts during the welding process of the automobile parts. When the motor output shaft rotates, the double-threaded screw rod 203 rotates with it. Since the threads of the double-threaded screw rod 203 are connected to the threads inside the clamping plate 204, the rotational motion of the double-threaded screw rod 203 will be converted into the linear motion of the clamping plate 204. This is like converting the rotational force into the force to push the clamping plate 204, so that the clamping plate 204 can move closer to the middle or move apart to the two sides to fix the automobile parts. For example, when welding small parts of the automobile engine, the rotation direction and speed of the double-threaded screw rod 203 can be accurately controlled by the first motor 202 to accurately adjust the position of the clamping plate 204, thereby effectively fixing different sizes of parts.

[0027] In the present embodiment, as shown in Figure 4As shown in the figure, the internal structure size of the double-threaded screw rod 203 is consistent with the external structure size of the clamping plate 204; the consistency of the size ensures the close fit between the double-threaded screw rod 203 and the clamping plate 204, which is crucial in the process of rotary friction welding. When the double-threaded screw rod 203 rotates, its threads can accurately interact with the threads of the clamping plate 204, and there will be no loosening or jamming phenomenon caused by size mismatch.

[0028] In this embodiment, as shown in the figure, Figure 4 The clamping plates 204 are mirror-imaged on both sides of the double-threaded screw rod 203, and the clamping plates 204 form a horizontal structure through the double-threaded screw rod 203; the mirror-imaged clamping plates 204 can simultaneously fix the automobile parts from two directions. During the welding process, this symmetrical fixing method can ensure that the parts are uniformly stressed in the horizontal direction. The rotation of the double-threaded screw rod 203 causes the two clamping plates 204 to move synchronously towards the middle or to both sides, so that the automobile parts can be accurately fixed at the desired position.

[0029] In this embodiment, as shown in the figure, Figure 4 The slide rods 201 and the double-threaded screw rods 203 are horizontally arranged; the horizontal arrangement of the slide rods 201 and the double-threaded screw rods 203 plays an auxiliary and guiding role. During the process of the double-threaded screw rod 203 rotating to drive the clamping plate 204 to move, the slide rod 201 can ensure that the clamping plate 204 moves stably along the horizontal direction.

[0030] In this embodiment, as shown in the figure, Figure 3 The welding head 105 is in a rotating structure through the second motor 101; the second motor 101 provides rotary power for the welding head 105. In the rotary friction welding of automobile parts, the rotation of the welding head 105 is a key factor for generating the heat required for welding. When the second motor 101 drives the welding head 105 to rotate, the welding head 105 rubs with the welded part of the automobile part. According to the principle of friction generating heat, the high-speed rotating welding head 105 generates a large amount of heat on the surface in contact with the part, so that the material at the welding position of the part reaches a plastic state. For example, when welding the metal plate of the automobile body, the welding head 105 rotates rapidly under the drive of the second motor 101, rubs with the plate welding part, and the generated heat softens the edge of the plate, and then realizes welding under a certain pressure.

[0031] In this embodiment, as shown in the figure, Figure 3As shown, the baffle 104 is horizontally slid by the air cylinder 102; the air cylinder 102 drives the baffle 104 to horizontally slide, which has two important functions in the process of welding automobile parts, one is that when the parts are placed, the baffle 104 can play a positioning role, so that the welded part of the part can be accurately placed in the appropriate position and resist the baffle 104, for example, when welding the parts of the automobile exhaust pipe, the front end to be welded is resisted against the baffle 104, which can ensure the position accuracy of each welding, and the other is that after the parts are fixed, the baffle 104 returns to the initial position to provide space for the rotation of the welding head 105 and the welding operation, so as to avoid the interference of the baffle 104 with the welding process.

[0032] The use method and advantages of the utility model are as follows:

[0033] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , first, the accessory is placed between the connecting seat 4 and the fixed groove 2, the tail end of the accessory is fixed between the connecting seat 4, the middle part is placed on the supporting plate 3, the front end to be welded is placed in the fixed groove 2, the welding part is resisted against the baffle 104, the output shaft of the first motor 202 is operated, the first motor 202 drives the double-threaded screw rod 203 to rotate, the threads of the double-threaded screw rod 203 are connected with the threads in the clamping plate 204, so that the clamping plates 204 on both sides of the double-threaded screw rod 203 can simultaneously fix the parts, the baffle 104 connected with the air cylinder 102 returns to the initial position, and the second motor 101 drives the welding head 105 to rotate and rub the parts for welding.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the technical workers in the industry that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and do not limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for rotary friction welding, comprising a base plate (1), characterised in that: The upper side of the bottom plate (1) is provided with a support plate (3), the upper side of the support plate (3) is provided with a fixed groove (2) and a connecting seat (4), one side of the fixed groove (2) is provided with a connecting seat (4); The upper side of the bottom plate (1) is provided with a fixed seat (106) through screwing, one side of the fixed seat (106) is provided with a second motor (101) through screwing, one side of the second motor (101) is provided with a welding head (105) through screwing, the upper side of the bottom plate (1) is provided with a support seat (103) through screwing, one side of the support seat (103) is provided with the shell of a pneumatic cylinder (102) through screwing, the rear of the pneumatic cylinder (102) is provided with a baffle (104) through screwing; One side of the fixed groove (2) is provided with the shell of a first motor (202) through screwing, one side of the first motor (202) is provided with a double-threaded screw rod (203) through screwing, the outer wall of the double-threaded screw rod (203) is provided with a clamping plate (204) through screwing, the inner side of the clamping plate (204) is attached with a sliding rod (201).

2. A welding fixture for use in rotary friction welding as defined in claim 1, characterized in that: The double-threaded screw rod (203) constitutes a rotating structure through the first motor (202).

3. A welding fixture for use in rotary friction welding as defined in claim 1, characterized in that: The internal structure size of the double-threaded screw rod (203) is consistent with the external structure size of the clamping plate (204).

4. The welding fixture of claim 1, wherein: Both sides of the double-threaded screw rod (203) are provided with clamping plates (204) in mirror image, and the clamping plates (204) constitute a horizontal structure through the double-threaded screw rod (203).

5. The welding fixture of claim 1, wherein: The sliding rod (201) and the double-threaded screw rod (203) are horizontally arranged and distributed.

6. A welding fixture for use in friction stir welding as defined in claim 1, wherein: The welding head (105) constitutes a rotating structure through the second motor (101).

7. The welding fixture of claim 1, wherein: The baffle (104) constitutes a horizontal sliding through the pneumatic cylinder (102).

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