Double-head friction welding machine with double-bed stress structure

Abstract

The utility model discloses a double-head friction welding machine with a double-bed stress structure, which comprises an inner bed and an outer bed, one end of the top surface of the inner bed is provided with a first main push oil cylinder, the other end of the top surface of the inner bed is provided with a second main push oil cylinder, the top surface of the outer bed is symmetrically connected with a first spindle box and a second spindle box in a sliding manner, and the first spindle box and the second spindle box are arranged on the outer bed. A first jaw and a second jaw are symmetrically and fixedly connected to the center line of the top face of the outer lathe bed. The structure of the first main push oil cylinder, the second main push oil cylinder, the first spindle box and the second spindle box improves stability and precision of the friction welding machine, errors of coaxiality and straightness in the welding process are reduced, the separated inner lathe bed and the separated outer lathe bed and a connecting structure of the inner lathe bed and the outer lathe bed enable equipment to bear larger acting force, the friction welding machine is suitable for various high-strength welding requirements, and the production cost is reduced. The stability and the reliability of a mechanical structure are remarkably improved, the inner lathe bed is designed in an elastic deformation mode, it is guaranteed that components such as the outer lathe bed supporting spindle box and the clamp do not deform in the welding process, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of friction welding machine equipment, specifically a double-head friction welding machine with a double-bed force-bearing structure. Background Technology

[0002] Friction welding machines are devices that generate heat energy during rotation and then apply appropriate pressure to complete welding. They utilize the heat generated by the friction between the end faces of the workpieces to bring them to a plastic state, and then complete the welding by upsetting. Because the chips often stick firmly to the cutting tool when turning the workpiece, and local welding can also occur when the lubrication between the shaft and the bearing is poor, friction welding was invented based on these phenomena.

[0003] Existing single-bed structures are prone to deformation or stress concentration when faced with large welding forces, which in turn affects welding quality and equipment life. Especially when welding large upsetting forces or large-sized workpieces, the single-bed design is difficult to effectively disperse the welding force, resulting in excessive bed deformation, which affects the workpiece clamping stability and welding accuracy. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing single-bed structures are prone to deformation or stress concentration when facing large welding forces, which affects welding quality and equipment lifespan, especially when welding large upsetting forces or large workpieces. The single-bed design is difficult to effectively disperse welding forces, resulting in excessive bed deformation that affects the workpiece clamping stability and welding accuracy. This invention provides a double-bed force-bearing structure double-head friction welding machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-head friction welding machine with a double-bed force-bearing structure, comprising: an inner bed and an outer bed, wherein a main push cylinder is provided at one end of the top surface of the inner bed, and a main push cylinder is provided at the other end of the top surface of the inner bed; a spindle box and a spindle box are symmetrically and slidably connected to the top surface of the outer bed, and jaws 1 and 2 are symmetrically fixed along the center line of the top surface of the outer bed.

[0006] As a further embodiment of this utility model: the inner bed is located inside the outer bed and extends out of the outer bed area at both ends. The inner bed adopts a reasonable elastic design, while the outer bed is composed of a steel structure with greater rigidity. The inner bed and the outer bed are connected by a number of equally spaced support members.

[0007] As a further embodiment of this utility model: both the first and second main push cylinders are arranged parallel to the top surfaces of the inner and outer beds, and the moving ends of their output shafts are respectively connected to one side of the first and second spindle boxes.

[0008] As a further embodiment of this utility model: both the first spindle box and the second spindle box are respectively integrated with a clamping structure for holding the workpiece and an electrical component for driving the clamping structure to rotate, and the two clamping structures are located on the same central axis and are arranged opposite each other.

[0009] As a further embodiment of this utility model: the jaw one and jaw two are symmetrically arranged on the top surface of the outer bed and are both on the central axis of the spindle box one and the spindle box two.

[0010] As a further embodiment of this utility model: the first jaw and the second jaw hold the workpiece three, and the two jaws respectively hold the two ends of the workpiece three.

[0011] As a further embodiment of this utility model: the clamping structure in the first spindle box holds the first workpiece, the clamping structure in the second spindle box holds the second workpiece, and the third workpiece, the first workpiece, and the second workpiece are all located on the same horizontal line.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The structure of the main push cylinder one, main push cylinder two, main spindle box one and main spindle box two in this utility model improves the stability and precision of the friction welding machine and reduces the coaxiality and straightness errors in the welding process;

[0014] 2. The separate inner and outer beds and their connecting structure enable the equipment to withstand greater forces, making it suitable for various high-intensity welding requirements and significantly improving the stability and reliability of the mechanical structure;

[0015] 3. The inner bed's elastic deformation design ensures that the outer bed supports the spindle box and fixtures, etc., without deformation during the welding process, thus extending the equipment's service life. Attached Figure Description

[0016] Figure 1 This is a front view structural schematic diagram of a double-head friction welding machine with a double-bed force-bearing structure as described in this utility model;

[0017] Figure 2 This is a schematic diagram of the inner bed in a double-head friction welding machine with a double-bed load-bearing structure as described in this utility model.

[0018] In the diagram: 1. Inner bed; 2. Outer bed; 3. Main push cylinder one; 4. Main push cylinder two; 5. Spindle box one; 6. Spindle box two; 7. Jaw one; 8. Jaw two; 9. Workpiece three; 10. Workpiece one; 11. Workpiece two. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0021] Reference Figure 1 and Figure 2 In this embodiment of the utility model, a double-head friction welding machine with a double-bed force-bearing structure includes: an inner bed 1 and an outer bed 2. A main push cylinder 3 is provided at one end of the top surface of the inner bed 1, and a second main push cylinder 4 is provided at the other end of the top surface of the inner bed 1. A spindle box 5 and a second spindle box 6 are symmetrically slidably connected to the top surface of the outer bed 2. A jaw 7 and a jaw 8 are symmetrically fixed along the center line of the top surface of the outer bed 2.

[0022] Reference Figure 1 and Figure 2 The inner bed 1 is located inside the outer bed 2 and extends out of the area of ​​the outer bed 2 at both ends. The inner bed 1 adopts a reasonable elastic design, while the outer bed 2 is composed of a steel structure with greater rigidity. The inner bed 1 and the outer bed 2 are connected by several support members arranged at equal intervals.

[0023] The above scheme employs a system where the equidistantly distributed support components between the inner bed 1 and the outer bed 2 can withstand both axial pressure and radial force from the inner bed 1. During welding, the inner bed 1 first bears the welding force of the workpiece, which is borne by the support components and its own elastic deformation. The outer bed 2 further disperses these forces to the equipment foundation, reducing the deformation of the outer bed 2 and the spindle box jaw clamps. The reaction force of the upsetting force is borne by the inner bed 1, which withstands the reaction force of the upsetting force through its internal force-bearing structure and elastic deformation. Since the inner bed 1 and the outer bed 2 are separated, the deformation of the inner bed 1 will not affect the stability of the outer bed 2. Thus, the running accuracy and clamping accuracy of the spindle box 5 and spindle box 6, jaw 7 and jaw 8, based on the outer bed 2, will not be affected by the upsetting force, ensuring the welding accuracy and stability of the equipment under high upsetting force.

[0024] Reference Figure 1 and Figure 2 Both the first main push cylinder 3 and the second main push cylinder 4 are set parallel to the top surfaces of the inner bed 1 and the outer bed 2, and the moving ends of their output shafts are respectively connected to one side of the first spindle box 5 and the second spindle box 6. The first spindle box 5 and the second spindle box 6 each integrate a workpiece clamping fixture structure and an electrical component for driving the fixture structure to rotate, and the two fixture structures are located on the same central axis and are set opposite to each other.

[0025] The above scheme is adopted: during operation, the welding force and feed power required for welding are provided by the main push cylinder 3 and the main push cylinder 4, which push the spindle box 5 and the spindle box 6 for welding feed, and are used for simultaneous contact friction welding of the two ends of workpiece 10, workpiece 21 and workpiece 39.

[0026] Reference Figure 1 and Figure 2 Jaw 1 7 and Jaw 2 8 are symmetrically arranged on the top surface of the outer bed 2 and are both on the central axis of spindle box 1 5 and spindle box 2 6. Jaw 1 7 and Jaw 2 8 hold workpiece 3 9, and each of them holds both ends of workpiece 3 9 respectively. The fixture structure in spindle box 1 5 holds workpiece 1 10, and the fixture structure in spindle box 2 6 holds workpiece 2 11. Workpiece 3 9, workpiece 1 10 and workpiece 2 11 are all arranged on the same horizontal line.

[0027] Using the above scheme: jaw 1 7 and jaw 2 8 are used to clamp workpiece 3 9 to ensure that it is fixed and immovable, and the upsetting force applied by the main push cylinder 1 3 and main push cylinder 2 4 on both sides acts simultaneously on workpiece 3 9, workpiece 1 10 and workpiece 2 11.

[0028] The working principle of this utility model is as follows: During use, the welding force and feed power required for welding are provided by the main push cylinder 3 and the main push cylinder 4, which push the main spindle box 5 and the main spindle box 6 for welding feed, so that the two ends of workpiece 10, workpiece 21 and workpiece 39 can simultaneously contact and friction weld. The jaws 7 and 8 are used to clamp workpiece 39 to ensure that it is fixed. The upsetting force applied by the main push cylinders 3 and 4 on both sides acts simultaneously on workpiece 39, workpiece 10 and workpiece 21. The reaction force of the upsetting force is borne by the inner bed 1. The inner bed 1 bears the reaction force of the upsetting force through its internal force-bearing structure and elastic deformation. At this time, since the inner bed 1 and the outer bed 2 are in a separated state, the deformation of the inner bed 1 will not affect the stability of the outer bed 2. Thus, the running accuracy and clamping accuracy of the spindle box 1 5 and spindle box 2 6 and jaw 1 7 and jaw 2 8 based on the outer bed 2 will not be affected by the upsetting force, so as to ensure the welding accuracy and stability of the equipment under the condition of large upsetting force.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A double-bed force-bearing structure double-head friction welding machine, characterized in that, include: The inner bed (1) and the outer bed (2) are provided with a main thrust cylinder 1 (3) at one end of the top surface of the inner bed (1) and a main thrust cylinder 2 (4) at the other end of the top surface of the inner bed (1). The top surface of the outer bed (2) is symmetrically and slidably connected with a spindle box 1 (5) and a spindle box 2 (6). The center line of the top surface of the outer bed (2) is symmetrically fixed with a jaw 1 (7) and a jaw 2 (8).

2. The double-bed force-bearing structure double-head friction welding machine according to claim 1, characterized in that, The inner bed (1) is located inside the outer bed (2) and extends out of the area of ​​the outer bed (2) at both ends. The inner bed (1) adopts a reasonable elastic design, while the outer bed (2) is composed of a rigid steel structure. The inner bed (1) and the outer bed (2) are connected by several equally spaced support members.

3. The double-bed force-bearing structure double-head friction welding machine according to claim 1, characterized in that, The main push cylinder one (3) and the main push cylinder two (4) are both set parallel to the top surface of the inner bed (1) and the outer bed (2), and the moving ends of their output shafts are respectively connected to one side of the spindle box one (5) and the spindle box two (6).

4. A double-bed force-bearing structure double-head friction welding machine according to claim 1, characterized in that, Both the first spindle box (5) and the second spindle box (6) are equipped with a clamping structure for holding the workpiece and an electrical component for driving the clamping structure to rotate, and the two clamping structures are located on the same central axis and are arranged opposite each other.

5. A double-bed force-bearing structure double-head friction welding machine according to claim 1, characterized in that, The jaw 1 (7) and jaw 2 (8) are symmetrically arranged on the top surface of the outer bed (2) and are both on the central axis of the spindle box 1 (5) and the spindle box 2 (6).

6. A double-bed force-bearing structure double-head friction welding machine according to claim 1, characterized in that, The first jaw (7) and the second jaw (8) hold the workpiece three (9), and the two jaws respectively hold the two ends of the workpiece three (9).

7. A double-bed force-bearing structure double-head friction welding machine according to claim 6, characterized in that, The fixture structure in the first spindle box (5) holds the first workpiece (10), the fixture structure in the second spindle box (6) holds the second workpiece (11), and the third workpiece (9), the first workpiece (10) and the second workpiece (11) are all located on the same horizontal line.

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