Friction welding machine special for piston rod and provided with rod body auxiliary feeding and discharging mechanism

Abstract

The utility model discloses a piston rod special friction welding machine equipped with a rod body auxiliary feeding and discharging mechanism, which belongs to the technical field of piston rod welding equipment and comprises a lathe bed, a spindle box, a positioning component, a lug ring feeding component, a second sliding table, a jaw clamp, a rod body auxiliary feeding and discharging component, a main pushing oil cylinder and a limiting component. The upper portion of the lathe bed is connected with a spindle box and a second sliding table. The rod body auxiliary feeding and discharging assembly is arranged, operators are assisted in completing the feeding and discharging process of rod pieces, physical energy loss of workers is reduced, compared with original rod piece feeding and discharging which need two times of hoisting actions, a friction welding machine only needs one time, the welding efficiency is remarkably improved, accurate positioning of rod piece and lug ring clamping is guaranteed, and the labor intensity of workers is lowered. The manual operation error is reduced, the welding consistency and precision are improved, the frequency of manual contact with welding equipment is reduced, and the safety risk in the operation process is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of piston rod welding equipment, specifically relating to a piston rod friction welding machine equipped with a rod auxiliary loading and unloading mechanism. Background Technology

[0002] Piston rods are widely used in hydraulic systems, pneumatic systems, and engine components, and their quality directly affects the stability and efficiency of the system. Piston rod welding typically requires high strength, low deformation, and high precision. Current welding methods mainly include arc welding, brazing, and laser welding. While these methods can accomplish the welding task, they have shortcomings in terms of weld quality, welding efficiency, and material properties, especially in high-strength applications.

[0003] Friction welding is a non-fusion welding technology that achieves welding by generating heat through friction, and is suitable for welding piston rods. Traditional friction welding machines lack loading and unloading mechanisms, requiring manual handling and clamping of the rod and lugs. Furthermore, for large-tonnage friction welding machines, the workpieces being welded are typically large in weight and size, making manual handling and loading / unloading impossible. This not only reduces production efficiency but also leads to inconsistent welding accuracy. Therefore, a dedicated friction welding machine for piston rods equipped with an auxiliary loading and unloading mechanism is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a piston rod-specific friction welding machine equipped with a rod-assisted loading and unloading mechanism, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a piston rod-specific friction welding machine equipped with a rod-assisted loading and unloading mechanism, comprising a bed, a spindle box, a positioning assembly, an ear-shaped loading assembly, a second slide, a jaw clamp, a rod-assisted loading and unloading assembly, a main push cylinder, and a limiting assembly. The upper part of the bed is connected to the spindle box and the second slide. The rod-assisted loading and unloading assembly includes two support frames, both of which are connected to the second slide. A motor is connected to the top of each support frame. A lead screw is rotatably connected inside the support frame. The lead screw is connected to a lifting arm via a lead screw nut connected to its external thread. A first limiting seat is connected to the top of the lifting arm. An electric push rod is connected inside the support frame. A sliding plate is slidably connected inside the support frame. The movable end of the electric push rod is connected to one end of the sliding plate. A second limiting seat is connected to the top of the sliding plate. The rod overlaps within the two second limiting seats.

[0006] This friction welding machine improves the efficiency, quality, and automation of piston rod welding by introducing a rod-assisted loading and unloading assembly, reduces human intervention, and helps improve the overall efficiency of the production line. Moreover, this friction welding machine is suitable for large-scale, continuous piston rod welding and has broad application prospects and market value.

[0007] As a preferred embodiment, the positioning component includes a first slide connected to the upper surface of the bed, an earring placed on the first slide, and an earring pin inserted into the first slide, the earring pin being located inside the earring.

[0008] As a preferred embodiment, the earring feeding assembly includes a conveyor frame connected to the front of the bed, a plurality of drive rollers rotatably connected inside the conveyor frame, and a blocking assembly connected to one side of the conveyor frame.

[0009] As a preferred embodiment, the main thrust cylinder is connected inside the bed, and the limiting assembly includes a fixed frame that rotates with two limiting clamps. A torsion spring connects the limiting clamps to the fixed frame, and rollers are rotatably connected inside each of the two limiting clamps.

[0010] As a preferred embodiment, the second slide is connected to the jaw clamp and the fixing frame.

[0011] As a preferred embodiment, the first limiting seat and the second limiting assembly are located in the gap between the spindle box clamp and the main push cylinder.

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

[0013] This utility model, by equipping a rod-assisted loading and unloading component, assists operators in completing the loading and unloading process of rods, reducing physical exertion. Compared to the original method that required two hoisting actions for loading and unloading rods, the modified friction welding machine only requires one, significantly improving welding efficiency. It also ensures precise positioning of the rods and earrings, reduces human error, improves welding consistency and accuracy, and reduces the frequency of manual contact with welding equipment, thus lowering safety risks during operation. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0015] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0016] Figure 3 This is a three-dimensional structural diagram of the bed frame of this utility model;

[0017] Figure 4This utility model Figure 3 Enlarged structural diagram at point B.

[0018] In the diagram: 1. Bed; 2. Spindle box; 3. Positioning assembly; 31. First slide; 32. Earring pin; 4. Earring feeding assembly; 41. Conveyor frame; 42. Drive roller; 43. Blocking assembly; 5. Second slide; 6. Jaw clamp; 7. Rod auxiliary loading / unloading assembly; 71. Support frame; 72. Motor; 73. Lead screw; 74. Lifting arm; 75. First limit seat; 76. Electric push rod; 77. Slide plate; 78. Second limit seat; 8. Main push cylinder; 9. Limiting assembly; 91. Fixing frame; 92. Limiting clamp; 93. Roller; 10. Rod; 11. Earring. Detailed Implementation

[0019] The present invention will be further described below with reference to the embodiments.

[0020] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0021] Please see Figure 1-4 This utility model provides a piston rod-specific friction welding machine equipped with a rod-assisted loading and unloading mechanism, including a bed 1, a spindle box 2, a positioning assembly 3, an ear ring loading assembly 4, a second slide table 5, a jaw clamp 6, a rod-assisted loading and unloading assembly 7, a main thrust cylinder 8, and a limit assembly 9. The upper part of the bed 1 is connected to the spindle box 2 and the second slide table 5. By setting the bed 1, which is made of high-strength cast iron or welded steel structure and undergoes aging treatment to eliminate internal stress, it has good rigidity and stability. The bed 1 has a precisely machined mounting reference surface to ensure the accuracy and positional relationship of the installation of each component, providing a stable support platform for the entire equipment.

[0022] The auxiliary loading and unloading assembly 7 of the rod body 10 includes two support frames 71, both of which are connected to the second slide table 5. A motor 72 is connected to the top of the support frame 71. A lead screw 73 is rotatably connected inside the support frame 71. The lead screw 73 is connected to the lifting arm 74 through a lead screw 73 nut connected by its external thread. A first limit seat 75 is connected to the top of the lifting arm 74. An electric push rod 76 is connected inside the support frame 71. A slide plate 77 is slidably connected inside the support frame 71. The movable end of the electric push rod 76 is connected to one end of the slide plate 77. A second limit seat is connected to the top of the slide plate 77. 78. The rod body 10 is connected to the two second limit seats 78. The positioning component 3 includes a first slide 31, which is connected to the upper surface of the bed 1. The ear ring 11 is placed on the first slide 31. By setting the first slide 31 and the second slide 5, the first slide 31 and the second slide 5 adopt the transmission method of linear guide rail and ball screw pair, and are driven by servo motor 72. It can accurately control the movement of the jaw clamp 6 and related components. During the welding process, according to the preset program, the slide can move forward, backward and feed, ensuring the smooth progress of the welding process.

[0023] The first slide 31 is fitted with an earring pin 32, which is located inside the earring 11. The earring feeding assembly 4 includes a conveyor frame 41, which is connected to the front of the bed 1. Several drive rollers 42 are rotatably connected inside the conveyor frame 41. A blocking assembly 43 is connected to one side of the conveyor frame 41. The main push cylinder 8 is connected inside the bed 1. By setting the main push cylinder 8, the main push cylinder 8 provides a strong upsetting force through the hydraulic system. After the friction stage of welding is completed, the main push cylinder 8 pushes the workpiece to further compact the plastic metal and form a strong welded joint.

[0024] The limiting assembly 9 includes a fixed frame 91, which rotates with two limiting clamps 92. A torsion spring connects the limiting clamps 92 and the fixed frame 91. Rollers 93 are rotatably connected inside each of the two limiting clamps 92. The second slide 5 is connected to the jaw clamp 6 and the fixed frame 91. By setting the jaw clamp 6, the jaws of the clamp can quickly clamp and release through hydraulic drive. The surface of the jaws is specially treated to increase the friction between the jaws and the workpiece, ensuring that the workpiece remains stable and does not slip during the welding process, whether it is high-speed rotation or upsetting, thus ensuring the accuracy of the welding position.

[0025] The first limiting seat 75 and the second limiting component 9 are located in the gap between the main spindle box 2 clamp and the main push cylinder 8. By setting the main spindle box 2, the main drive motor 72 in the main spindle box 2 is connected to the welding spindle through a coupling to provide rotational power to the welding spindle. During welding, the earring 11 to be welded is clamped on the main spindle clamp, and the motor 72 drives the earring 11 to rotate at high speed.

[0026] Working principle and usage process of this utility model:

[0027] After the equipment is turned on, the jaw clamp 6 is in the loose state, the earring feeding component 4 is in the retracted state, the rod body 10 assists the lifting arm 74 of the loading and unloading component 7 to the standby state, and the horizontal arm is in the retracted state, waiting for feeding.

[0028] The piston rod lugs 11 are neatly arranged on the feeding roller conveyor of the lug feeding assembly 4. The operator manually moves the lugs 11 from the feeding position of the first slide 31 on the roller conveyor and inserts the lug pin 32 at the same time. Then, the operator manually pushes the first slide 31 towards the central axis of the equipment. At this time, the displacement of the first slide 31 is precisely controlled by the servo motor 72. When the first slide 31 moves to the end, the lugs 11 are accurately aligned with the center of the spindle fixture. Then, the operator manually pushes the lugs 11 into the spindle rotating fixture. The fixture clamps the workpiece under the action of the hydraulic system.

[0029] The operator uses a crane to place the rod 10 on two lifting arms 74, and then controls two jaw clamps 6 to clamp the rod 10. At this time, the rod 10 pushes the two limit clamps 92 to rotate, so that the rod 10 moves between the two limit clamps 92, so that the two limit clamps 92 overlap the rollers 93 with the outer surface of the rod 10 under the action of the torsion spring.

[0030] The second slide 5 is controlled to move forward, bringing the rod 10 close to and pre-push the ear ring 11. The main drive motor 72 of the spindle box 2 is started, driving the ear ring 11 to rotate. At the same time, the second slide 5 feeds according to the set feed speed, causing friction between the rod 10 and the ear ring 11. During the friction process, mechanical energy is continuously converted into heat energy, and the temperature of the workpiece contact surface gradually rises to a plastic state. When the set friction time and parameters are reached, the equipment performs an upsetting action. The main push cylinder 8 applies upsetting force, which fully compresses the plastic metal between the workpieces to form a welded joint and complete the welding. After the welding is completed, the spindle clamp is released under hydraulic control, and the second slide 5 retracts.

[0031] When the second slide 5 retracts to the initial position, the control jaw clamp 6 is released, and the control motor 72 is activated. The activated motor 72 drives the lead screw 73 to rotate, and the rotating lead screw 73 drives the lifting arm 74 to move upward. The upward-moving lifting arm 74 lifts the welded workpiece to a suitable position. The control electric push rod 76 is extended, and the extended electric push rod 76 drives the second limit seat 78 to move through the slide plate 77, so that the second limit seat 78 moves below the rod body 10. At this time, the control lifting arm 74 is lowered, so that the rod body 10 falls onto the second limit seat 78 of the extended horizontal arm. Then the control electric push rod 76 is retracted, and the horizontal arm supports the workpiece and returns to the starting position, making room for the upper part of the clamp's central axis.

[0032] Use a crane to lift the welded workpieces off the horizontal arm and place them in the finished product area; at the same time, lift the new rod 10 to be welded onto the two lifting arms 74, then control the lifting arms 74 to move downwards between the two jaw clamps 6, then control the jaw clamps 6 to fix the rod 10, and then repeat the above operation process to carry out the next round of welding work.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A piston rod-specific friction welding machine equipped with a rod-assisted loading and unloading mechanism, comprising a bed (1), a spindle box (2), a positioning assembly (3), an ear ring loading assembly (4), a second slide (5), a jaw clamp (6), a rod (10) auxiliary loading and unloading assembly (7), a main thrust cylinder (8), and a limiting assembly (9), characterized in that: The upper part of the bed (1) is connected to the spindle box (2) and the second slide (5). The rod body (10) auxiliary loading and unloading assembly (7) includes two support frames (71). Both support frames (71) are connected to the second slide (5). The top of the support frame (71) is connected to a motor (72). The support frame (71) is rotatably connected to a lead screw (73). The lead screw (73) is connected to a lifting arm (74) through a lead screw nut connected by its external thread. The top of the lifting arm (74) is connected to a first limit seat (75). The support frame (71) is connected to an electric push rod (76). The support frame (71) is slidably connected to a slide plate (77). The movable end of the electric push rod (76) is connected to one end of the slide plate (77). The top of the slide plate (77) is connected to a second limit seat (78). The rod body (10) overlaps the two second limit seats (78).

2. A piston rod friction welding machine equipped with a rod-assisted loading and unloading mechanism according to claim 1, characterized in that: The positioning component (3) includes a first slide (31) connected to the upper surface of the bed (1), an earring (11) is placed on the first slide (31), and an earring pin (32) is inserted into the first slide (31) and the earring pin (32) is located inside the earring (11).

3. A piston rod friction welding machine equipped with a rod-assisted loading and unloading mechanism according to claim 1, characterized in that: The earring feeding assembly (4) includes a conveyor frame (41), which is connected to the front of the bed (1). Several active rollers (42) are rotatably connected inside the conveyor frame (41), and a blocking assembly (43) is connected to one side of the conveyor frame (41).

4. A piston rod-specific friction welding machine equipped with a rod-assisted loading and unloading mechanism according to claim 1, characterized in that: The main push cylinder (8) is connected inside the bed (1). The limiting assembly (9) includes a fixed frame (91). The fixed frame (91) rotates with two limiting clamps (92). A torsion spring is connected between the limiting clamps (92) and the fixed frame (91). Rollers (93) are rotatably connected inside both limiting clamps (92).

5. A piston rod friction welding machine equipped with a rod-assisted loading and unloading mechanism according to claim 1, characterized in that: The second slide (5) is connected to the jaw clamp (6) and the fixing frame (91).

6. A piston rod friction welding machine equipped with a rod-assisted loading and unloading mechanism according to claim 1, characterized in that: The first limiting seat (75) and the second limiting component (9) are located in the gap between the main spindle box (2) clamp and the main push cylinder (8).

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