Small hydraulic cylinder oil port welding device

Abstract

The utility model discloses a welding device for an oil port of a small hydraulic cylinder, which relates to the technical field of engineering machinery and comprises an adjustable placing platform component which extends from a rack and is used for placing a workpiece; the machine head is installed on the machine frame in a linear lifting mode, a rotating mechanism is installed on the machine head, and a workpiece to be welded is installed at the bottom of the rotating mechanism. And the welding gun is adjustably mounted on the rotating mechanism, and performs circular motion along with the rotating mechanism to weld a workpiece on the placing platform assembly and a workpiece to be welded mounted at the bottom of the rotating mechanism during welding. Different positioning of various types of products in practical application can be achieved through the adjusting functions of all the mechanisms, the lifting air cylinder is used for pressing an oil port, it is guaranteed that angle deviation of the oil port does not occur in the welding process, the machining positioning time is shortened, the welding quality is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a small hydraulic cylinder oil port welding device. Background Art

[0002] At present, conventional small hydraulic cylinders on the market are generally composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device, and an exhaust device, and the oil port joint is often arranged on the cylinder barrel, and the oil port joint is welded to the cylinder barrel by welding tooling.

[0003] In the prior art, during the process of welding the oil port joint on the cylinder barrel of the hydraulic oil cylinder, welding is often performed manually by hand. Since the joint is not fixed and some positioning tooling does not have an adjustment function, the interface is prone to offset and cannot adapt to different workpiece models, and the welding quality is greatly affected by human factors. Utility Model Content

[0004] The purpose of the utility model is to provide a small hydraulic cylinder oil port welding device to solve the problems raised in the above-mentioned background technology that the welding quality of manual handheld welding cannot be guaranteed, and some auxiliary positioning tooling does not have an adjustment function and cannot be applied to the processing of different types of workpieces.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a small hydraulic cylinder oil port welding device, comprising:

[0006] A frame, from which extends an adjustable placement platform assembly for placing workpieces;

[0007] A machine head, the machine head can be linearly lifted and lowered and installed on the frame, a rotating mechanism is installed on the machine head, and a workpiece to be welded is installed at the bottom of the rotating mechanism;

[0008] A welding gun is adjustably mounted on the rotating mechanism and follows the rotating mechanism to make a circular motion during welding to weld the workpiece on the placing platform assembly and the workpiece to be welded mounted at the bottom of the rotating mechanism.

[0009] Preferably, the rotating mechanism comprises a rotating shaft coaxially mounted with the machine head, the rotating shaft is driven to rotate by a driving device, and the bottom of the rotating shaft is conical and movably connected to the workpiece.

[0010] Preferably, one end of the machine head away from the rotating shaft is connected to a lifting cylinder, and the machine head is driven to rise and fall on the frame by the lifting cylinder.

[0011] Preferably, an adjustment frame is fixed on the rotating shaft, a servo lift is installed on the adjustment frame, a gun seat is installed at the telescopic position of the servo lift, and the welding gun is hinged on the gun seat.

[0012] Preferably, the maximum rotation angle of the rotating shaft is 360°.

[0013] Preferably, the driving device adopts a servo reduction motor.

[0014] Preferably, the placement platform assembly includes a workbench fixed on the frame and a bracket for supporting the workpiece.

[0015] Preferably, a slide groove is provided on the workbench, and the bracket is slidably connected on the slide groove.

[0016] Preferably, two groups of the brackets are arranged on the slide groove, and / or the brackets are penetrated by bolts to tighten and limit against the workbench.

[0017] Preferably, the top surface of the bracket is V-shaped.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model can realize different positioning of various types of products in practical applications through the adjustment functions of various mechanisms, and utilizes the lifting cylinder to compress the oil port to ensure that the oil port does not deviate from the angle during welding, thereby shortening the processing positioning time, ensuring the welding quality, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a side view of the structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the top view of the structure of the placement platform assembly of the utility model;

[0023] Figure 4 This is a schematic diagram of the main structure of the placement platform component of the utility model.

[0024] In the figure: 1. frame; 2. placement platform assembly; 3. machine head; 4. welding gun; 5. rotating shaft; 6. driving device; 7. adjustment frame; 8. servo lift; 9. gun seat; 10. workbench; 11. bracket; 12. slide; 13. lifting cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] See also Figure 1-Figure 4 , a small hydraulic cylinder oil port welding device, such as Figure 1 As shown, it is composed of a frame 1, a placement platform assembly 2, a head 3 and a welding gun 4;

[0027] In a specific implementation, an adjustable placement platform assembly 2 is extended from the frame 1 for placing workpieces, such as Figure 4 As shown, the placing platform assembly 2 is provided with a workbench 10 fixed on the frame 1 and a bracket 11 with a V-shaped top surface for supporting the workpiece; Figure 3 As shown, a slide groove 12 is provided on the workbench 10, and two groups of brackets 11 are arranged on the slide groove 12 and are slidably connected. When the bracket 11 is limited, bolts are passed through the bracket 11 and the workbench 10 to tighten and limit the position.

[0028] like Figure 2 As shown, one end of the machine head 3 can be connected to the lifting cylinder 13, and the machine head 3 can be driven to rise and fall on the frame 1 by the lifting cylinder 13. A rotating mechanism is installed at the other end of the machine head 3, and the rotating mechanism is provided with a rotating shaft 5 coaxially installed with the machine head 3. The rotating shaft 5 is driven to rotate by the driving device 6, and the bottom of the rotating shaft 5 is conical and movably connected to the workpiece.

[0029] An adjusting frame 7 is fixed on the rotating shaft 5, a servo lift 8 is installed on the adjusting frame 7, a gun seat 9 is installed at the telescopic part of the servo lift 8, and the welding gun 4 is hinged on the gun seat 9. During welding, it follows the rotating mechanism to make a circular motion to weld the workpiece on the placement platform assembly 2 and the workpiece to be welded installed at the bottom of the rotating mechanism.

[0030] The maximum rotation angle of the rotating shaft 5 is 360°. The driving device 6 adopts a servo reduction motor.

[0031] It should be noted that: when welding, the hydraulic cylinder workpiece is placed on the bracket 11 on the workbench 10, the X-axis distance of the hydraulic cylinder workpiece is adjusted by sliding the bracket 11, and then the oil port workpiece to be welded is placed at the bottom of the rotating shaft 5, and the lifting cylinder 13 is started by the controller to drive the machine head 3 and the rotating shaft 5 to move downward so that the oil port workpiece to be welded is limited on the hydraulic cylinder workpiece of the bracket 11, and then the diameter size of the welding is adjusted by flipping the welding gun 4 around the hinge point of the gun seat 9.

[0032] After the adjustment of each mechanism is completed, the controller starts the welding gun 4 and at the same time starts the driving device 6 to drive the rotating shaft 5 to rotate. The welding gun 4 installed on the rotating shaft 5 through the adjustment frame 7 coaxially and synchronously rotates to weld the hydraulic cylinder and the oil port. At the same time, the controller starts the servo lift 8 to drive the welding gun 4 to reciprocate and adjust the real-time height of the welding gun 4 to complete the welding of irregular (saddle-shaped) welds.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A small hydraulic cylinder oil port welding device, characterized in that: include: A frame (1), wherein an adjustable placement platform component (2) extends from the frame (1) and is used to place a workpiece; A machine head (3), the machine head (3) being linearly liftable and installed on the frame (1), a rotating mechanism being installed on the machine head (3), and a workpiece to be welded being installed at the bottom of the rotating mechanism; A welding gun (4) is adjustably mounted on the rotating mechanism and follows the rotating mechanism to make a circular motion during welding to weld the workpiece on the placement platform assembly (2) and the workpiece to be welded mounted at the bottom of the rotating mechanism.

2. The small hydraulic cylinder oil port welding device according to claim 1 is characterized in that: The rotating mechanism comprises a rotating shaft (5) coaxially mounted with the machine head (3); the rotating shaft (5) is driven to rotate by a driving device (6); and the bottom of the rotating shaft (5) is conical and movably connected to the workpiece.

3. The small hydraulic cylinder oil port welding device according to claim 2 is characterized in that: One end of the machine head (3) away from the rotating shaft (5) is connected to a lifting cylinder (13), and the machine head (3) is driven to rise and fall on the frame (1) by the lifting cylinder (13).

4. The small hydraulic cylinder oil port welding device according to claim 3 is characterized in that: An adjustment frame (7) is fixed on the rotating shaft (5), a servo lift (8) is installed on the adjustment frame (7), a gun seat (9) is installed at the telescopic position of the servo lift (8), and the welding gun (4) is hinged on the gun seat (9).

5. The small hydraulic cylinder oil port welding device according to claim 4 is characterized in that: The maximum rotation angle of the rotating shaft (5) is 360°.

6. The small hydraulic cylinder oil port welding device according to claim 4 is characterized in that: The driving device (6) adopts a servo reduction motor.

7. The small hydraulic cylinder oil port welding device according to any one of claims 1 to 6, characterized in that: The placement platform assembly (2) comprises a workbench (10) fixed on the frame (1) and a bracket (11) for supporting a workpiece.

8. The small hydraulic cylinder oil port welding device according to claim 7 is characterized in that: The workbench (10) is provided with a slide groove (12), and the bracket (11) is slidably connected on the slide groove (12).

9. The small hydraulic cylinder oil port welding device according to claim 8, characterized in that: Two groups of the brackets (11) are arranged on the slide groove (12), and / or the brackets (11) are penetrated by bolts to tighten and limit the workbench (10).

10. The small hydraulic cylinder oil port welding device according to claim 9, characterized in that: The top surface of the bracket (11) is V-shaped.

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