Press fitting device for external lifting lug of oil cylinder

Abstract

The press-fitting device for the lifting lug with the oil cylinder arranged externally comprises a platform, two supporting legs, a workbench, a supporting column, a top plate, a driving air cylinder, a telescopic rod, the lifting lug, the oil cylinder, a limiting mechanism and a rotating mechanism, the two supporting legs are symmetrically fixed to the bottom of the platform, and the workbench is installed on the top of the platform. Two supporting columns are symmetrically fixed to the top of the platform, a top plate is fixed to the tops of the supporting columns, and a driving air cylinder is fixed to the bottom of the top plate; compared with a comparison file, different oil cylinders can be limited and fixed through the limiting mechanism and the rotating mechanism, spot welding work can be directly carried out by rotating the workbench after press fitting work is completed, follow-up re-fixing of the oil cylinders is not needed, operation is easy, and the work efficiency is improved. And the working efficiency of mounting the lifting lug is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of press-fit devices, in particular to a press-fit device for an external lifting lug of an oil cylinder. Background Art

[0002] The multi-stage sleeve hydraulic cylinder is composed of multiple piston cylinders, cylinder barrels, etc. The more telescopic levels the sleeve has, the larger the diameter will be. The hydraulic cylinder rotates around the lifting ear as the center.

[0003] According to Chinese patent CN 219043741 U, a multi-stage sleeve hydraulic oil cylinder cover lifting ear press-fitting device is disclosed, which relates to the field of processing tooling technology and solves the problem that the corresponding size needs to be replaced for the processing of cover lifting ears of different sizes and models, and the compatibility is poor; a multi-stage sleeve hydraulic oil cylinder cover lifting ear press-fitting device comprises a base plate; clamping arms are arranged on both sides of the upper part of the base plate; a hydraulic station is arranged on the outer side of the base plate; a cover cylinder is arranged above the base plate; an upper shaft slides through the middle of the clamping arm, a rear screw is screwed on the rear of the clamping arm, the tail end of the clamping arm is rotatably connected to the connecting fork, the tail end of the connecting fork is fixed to the telescopic rod of the hydraulic oil cylinder, and the tail end of the hydraulic oil cylinder is rotatably connected to the lower shaft seat; the utility model rotates the rear screw, and the clamping arm moves oppositely to adjust the spacing, and the clamping arm is adapted to the press-fitting operation of the cover cylinder and the cover retaining ring of different sizes, so as to meet the use of the press-fitting processing of different sizes and multiple models.

[0004] Although this patent can press-fit the oil cylinder and the lifting ear by means of the clamping arm, spot welding is still required after the press-fitting. However, the existing method generally can only spot weld one side of the oil cylinder after the press-fitting operation of the oil cylinder and the lifting ear, and the other side needs to be re-fixed to complete the spot welding, which is troublesome to operate and reduces work efficiency.

[0005] Therefore, it is necessary to provide a new press-fitting device for an external lifting lug of an oil cylinder to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a press-fitting device for an external lifting ear of an oil cylinder.

[0007] The utility model provides a press-fitting device for an external lifting ear of an oil cylinder, comprising:

[0008] platform;

[0009] Support feet, two support feet are symmetrically fixed at the bottom of the platform;

[0010] A workbench, wherein a workbench is installed on the top of the platform;

[0011] Support columns, two support columns are symmetrically fixed on the top of the platform;

[0012] A top plate, wherein the top of the support column is fixed with a top plate;

[0013] A driving cylinder is fixed to the bottom of the top plate;

[0014] A telescopic rod, a telescopic rod is fixed to the bottom of the driving cylinder;

[0015] A lifting lug is placed on the top of the workbench;

[0016] An oil cylinder is clamped on the inner side of the lifting lug;

[0017] A limiting mechanism, wherein the movable end of the telescopic rod is provided with a limiting mechanism for fixing the oil cylinder;

[0018] A rotating mechanism is installed at the bottom of the platform for driving the workbench to rotate.

[0019] Preferably, the limiting mechanism comprises:

[0020] A limit block, the movable end of the telescopic rod is fixed with the limit block, and the inner side of the limit block is slidably connected with the outer wall of the oil cylinder;

[0021] A fixing ring, wherein the outer wall of the lower end of the limit block is fixed with a fixing ring;

[0022] Bolts, the outer wall of the fixing ring is threadedly connected with bolts through threaded holes.

[0023] Preferably, the rotating mechanism:

[0024] A rotating rod, the bottom of the workbench is rotatably connected to the rotating rod through a bearing, and one end of the rotating rod away from the workbench extends to the bottom of the platform;

[0025] A worm gear is fixed to the end of the rotating rod away from the workbench;

[0026] A connecting block is symmetrically fixed to the bottom of the platform;

[0027] A worm, the inner side of the connecting block is rotatably connected with a worm through a bearing, and the worm is meshingly connected with a worm wheel;

[0028] A motor is fixed at the bottom of the platform, and an output end of the motor is fixed to one end of the worm.

[0029] Preferably, an anti-slip pad is fixed to the bottom of the supporting foot.

[0030] Preferably, a buffer pad is fixed on the top of the workbench, and the buffer pad is in compression contact with the lifting lug and the bottom of the oil cylinder.

[0031] Preferably, the motor is a three-phase asynchronous motor.

[0032] Compared with the related art, the press-fitting device for the external lifting lug of the oil cylinder provided by the utility model has the following beneficial effects:

[0033] Since spot welding is required after press-fitting, the existing press-fitting operation of the oil cylinder and the lifting ear can only spot weld one side of the oil cylinder, and the oil cylinder on the other side needs to be re-fixed to complete the spot welding. However, the limiting mechanism and the rotating mechanism can not only limit and fix different oil cylinders, but also spot weld directly by rotating the workbench after the press-fitting work is completed, without the need to re-fix them later. The operation is simpler and the work efficiency of installing the lifting ear is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0035] Figure 2 It is a schematic diagram of the limiting mechanism of the utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the buffer pad of the utility model;

[0037] Figure 4 It is a schematic diagram of the rotating mechanism of the utility model;

[0038] Figure 5 It is a schematic diagram of the rotating rod structure of the utility model.

[0039] Numbers in the figure: 1. platform; 2. supporting feet; 3. workbench; 4. supporting column; 5. top plate; 6. driving cylinder; 7. telescopic rod; 8. lifting ear; 9. oil cylinder; 10. limiting mechanism; 101. limiting block; 102. fixing ring; 103. bolt; 11. rotating mechanism; 201. rotating rod; 202. worm gear; 203. connecting block; 204. worm; 205. motor; 12. anti-slip pad; 13. buffer pad. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0041] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0042] See also Figures 1 to 5The embodiment of the utility model provides a press-fitting device for an external lifting ear 8 of an oil cylinder 9, comprising a platform 1, a supporting foot 2, a workbench 3, a supporting column 4, a top plate 5, a driving cylinder 6, a telescopic rod 7, a lifting ear 8, an oil cylinder 9, a limiting mechanism 10, and a rotating mechanism 11. A slide groove is provided on the top of the platform 1, two supporting feet 2 are symmetrically fixed to the bottom of the platform 1, and an anti-slip pad 12 is fixed to the bottom of the supporting feet 2. A workbench 3 is installed on the top of the platform 1, and four supporting rods are symmetrically fixed to the bottom of the workbench 3, and the supporting rods are slidably connected to the inner side of the slide groove. The platform 1 Two supporting columns 4 are symmetrically fixed to the top, a top plate 5 is fixed to the top of the supporting columns 4, a driving cylinder 6 is fixed to the bottom of the top plate 5, a telescopic rod 7 is fixed to the bottom of the driving cylinder 6, a lifting ear 8 is placed on the top of the workbench 3, an oil cylinder 9 is clamped on the inner side of the lifting ear 8, a buffer pad 13 is fixed to the top of the workbench 3, and the buffer pad 13 is in compression contact with the lifting ear 8 and the bottom of the oil cylinder 9, a limiting mechanism 10 for fixing the oil cylinder 9 is installed at the movable end of the telescopic rod 7, and a rotating mechanism 11 for driving the workbench 3 to rotate is installed at the bottom of the platform 1.

[0043] Compared with the comparative documents, the present application can not only limit and fix different oil cylinders 9 through the limiting mechanism 10 and the rotating mechanism 11, but also directly carry out spot welding by rotating the workbench 3 after the press-fitting work is completed, without the need for subsequent re-fixing, the operation is relatively simple, and the work efficiency of installing the lifting ear 8 is improved.

[0044] The limiting mechanism 10 includes a limiting block 101, a fixing ring 102, and a bolt 103. The movable end of the telescopic rod 7 is fixed with the limiting block 101. The inner side of the limiting block 101 is slidably connected to the outer wall of the oil cylinder 9. The fixing ring 102 is fixed to the outer wall of the lower end of the limiting block 101. The outer wall of the fixing ring 102 is threadedly connected with the bolt 103 through a threaded hole, so that different oil cylinders 9 can be limited and fixed.

[0045] The rotating mechanism 11 includes a rotating rod 201, a worm wheel 202, a connecting block 203, a worm 204, and a motor 205. The bottom of the workbench 3 is rotatably connected to the rotating rod 201 through a bearing. The end of the rotating rod 201 away from the workbench 3 extends to the bottom of the platform 1. The end of the rotating rod 201 away from the workbench 3 is fixed with a worm wheel 202. The bottom of the platform 1 is symmetrically fixed with a connecting block 203. The inner side of the connecting block 203 is rotatably connected to the worm 204 through a bearing. The worm 204 is meshed with the worm wheel 202. The bottom of the platform 1 is fixed with a motor 205. The output end of the motor 205 is fixed to one end of the worm 204. The motor 205 is a three-phase asynchronous motor. Spot welding can be directly performed by rotating the workbench 3 without the need to re-fix it later. The operation is simple and the work efficiency of installing the lifting lug 8 is improved.

[0046] The working principle of the press-fitting device for the external lifting lug 8 of the oil cylinder 9 provided by the utility model is as follows:

[0047] First, place the external lifting ear 8 on the buffer pad 13, then place the oil cylinder 9 on the inner side of the lifting ear 8, and then adjust the fixing ring 102 so that the limit block 101 locks and fixes the outer wall of the oil cylinder 9, and then start the driving cylinder 6 to drive the telescopic rod 7 to extend and retract, and then the telescopic rod 7 drives the limit block 101 to press the oil cylinder 9 to the inner side of the lifting ear 8. After the pressing work is completed, it is spot welded. When the spot welding work on one side of the oil cylinder 9 is completed, the fixing ring 102 on the limit block 101 is unlocked, and then the motor 205 is driven, the motor 205 drives the worm 204 to rotate, the worm 204 drives the worm wheel 202 to rotate, and the worm wheel 202 drives the rotating rod 201 to rotate, so that the workbench 3 rotates on the inner side of the slide groove, and then the spot welding work on the other side of the oil cylinder 9 is performed to complete the installation of the lifting ear 8.

[0048] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0049] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A press-fitting device for an external lifting lug of a cylinder, characterized in that: include: Platform (1); Support legs (2), two support legs (2) are symmetrically fixed on the bottom of the platform (1); A workbench (3), wherein the top of the platform (1) is provided with a workbench (3); Support columns (4), two support columns (4) are symmetrically fixed on the top of the platform (1); A top plate (5), the top of the support column (4) being fixed with the top plate (5); A driving cylinder (6), wherein the bottom of the top plate (5) is fixed with a driving cylinder (6); A telescopic rod (7), the bottom of the driving cylinder (6) is fixed with the telescopic rod (7); A lifting lug (8), wherein the top of the workbench (3) is provided with a lifting lug (8); An oil cylinder (9), the inner side of the lifting lug (8) is clamped with the oil cylinder (9); A limiting mechanism (10), wherein the movable end of the telescopic rod (7) is provided with a limiting mechanism (10) for fixing the oil cylinder (9); A rotating mechanism (11), wherein a rotating mechanism (11) for driving the workbench (3) to rotate is installed at the bottom of the platform (1).

2. The press-fitting device for an external lifting lug of a cylinder according to claim 1, characterized in that: The limiting mechanism (10) comprises: A limit block (101), the movable end of the telescopic rod (7) is fixed with the limit block (101), and the inner side of the limit block (101) is slidably connected to the outer wall of the oil cylinder (9); A fixing ring (102), wherein the outer wall of the lower end of the limiting block (101) is fixed with a fixing ring (102); Bolts (103), the outer wall of the fixing ring (102) is threadedly connected with the bolts (103) through threaded holes.

3. The press-fitting device for an external lifting lug of a cylinder according to claim 1, characterized in that: The rotating mechanism (11): A rotating rod (201), the bottom of the workbench (3) is rotatably connected to the rotating rod (201) via a bearing, and one end of the rotating rod (201) away from the workbench (3) extends to the bottom of the platform (1); A worm gear (202), wherein the worm gear (202) is fixed to one end of the rotating rod (201) away from the workbench (3); A connecting block (203), the bottom of the platform (1) is symmetrically fixed with a connecting block (203); A worm (204), the inner side of the connecting block (203) is rotatably connected with the worm (204) via a bearing, and the worm (204) is meshingly connected with the worm wheel (202); A motor (205) is fixed to the bottom of the platform (1), and an output end of the motor (205) is fixed to one end of the worm (204).

4. The press-fitting device for an external lifting lug of a cylinder according to claim 1, characterized in that: An anti-skid pad (12) is fixed to the bottom of the supporting foot (2).

5. The press-fitting device for an external lifting lug of a cylinder according to claim 1, characterized in that: A buffer pad (13) is fixed on the top of the workbench (3), and the buffer pad (13) is in compression contact with the lifting lug (8) and the bottom of the oil cylinder (9).

6. The press-fitting device for the external lifting ear of the oil cylinder according to claim 3, characterized in that: The motor (205) is a three-phase asynchronous motor.

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