Jacking mechanism

Abstract

The utility model relates to the technical field of jacking, in particular to a jacking mechanism which comprises a base, a square air cylinder is installed at one end of the surface of the base, a switching block with an inclined face on the top is fixed to the output end of the square air cylinder, a lifting plate is arranged over the base, and a jacking block is fixed to the center of the bottom of the lifting plate through a bolt. A rotatable needle bearing is mounted at the bottom end of the jacking block through a bearing rotating shaft; and a connecting plate is arranged above the lifting plate, springs are installed at the four corners of the connecting plate, an ejection block is arranged on the inner side of the connecting plate, and the ejection block is fixedly connected with the surface of the lifting plate through screws. The switching block on the sliding block is driven by the air cylinder to move front and back, the needle bearing rolls on the switching block, the needle bearing moves up and down through the linear bearing, manual operation is not needed, and working efficiency is improved; meanwhile, the spring is arranged at the top end to ensure that the mechanism is not suspended due to jamming.

Description

Technical Field

[0001] The utility model relates to the technical field of jacking, in particular to a jacking mechanism. Background Art

[0002] After processing, parts need to be taken out. If the parts are inlaid, it will cause great trouble for people to take them out. Therefore, a lifting mechanism is usually needed to eject the parts.

[0003] Most of the existing lifting mechanisms are manually operated during use, which increases the labor intensity during part lifting and reduces the working efficiency of the lifting. In addition, the existing lifting mechanisms may become suspended due to jamming during the lifting process, thereby reducing safety during use. Utility Model Content

[0004] The utility model aims to provide a lifting mechanism to solve the problem in the background art that the existing lifting mechanism is manually operated and may become suspended due to jamming during the lifting process.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting mechanism, including a base, a square cylinder is installed at one end of the base surface, and a switching block with a bevel on the top is fixed at the output end of the square cylinder, and the switching block is used for lifting work; a lifting plate is arranged directly above the base, and a lifting block is fixed to the central part of the bottom of the lifting plate by bolts, and a rotatable needle bearing is installed at the bottom end of the lifting block through a bearing shaft; a connecting plate is arranged above the lifting plate, and springs are installed at the four corners of the connecting plate, and the bottom end of the spring is fixedly connected to the surface of the lifting plate; a top block is arranged on the inner side of the connecting plate, and the top block is fixedly connected to the surface of the lifting plate by screws.

[0006] Preferably, a slide groove is provided on the surface of the base, and a slide rail slider is provided between the switching block and the slide groove. The slide rail of the slide rail slider is fixedly connected to the bottom of the switching block by screws, and the slider of the slide rail slider is fixedly connected to the inside of the slide groove, and the slide rail of the slide rail slider slides back and forth on the slider along the inside of the slide groove.

[0007] Preferably, linear bearings are installed at the four corners of the lifting plate surface by screws, and the plane where the top of the linear bearing is located is coplanar with the plane where the top of the lifting plate is located.

[0008] Preferably, a guide shaft is slidably connected inside the linear bearing, and the top end of the guide shaft is fixedly connected to the surface of the connecting plate, and the bottom end of the guide shaft passes through the linear bearing and is fixedly connected to the surface of the base.

[0009] Preferably, when the spring is in a compressed state, the plane where the top of the connecting plate is located is lower than the plane where the top block is located; when the spring is in an extended state, the plane where the top of the connecting plate is located is higher than the plane where the top block is located.

[0010] Preferably, the needle roller bearing is located directly above the switching block, and in the jacking state, the needle roller bearing can roll on the upper surface of the switching block.

[0011] Preferably, a fixing plate is fixed to the surface of the base by bolts, and an electric switch is installed on the top of the fixing plate. A sensing plate is fixed to the surface of one side of the lifting plate by bolts, and the sensing plate and the power-off switch cooperate with each other for limiting work during jacking.

[0012] The invention has the advantages that: when the lifting mechanism is implemented, the switching block is pushed by the square cylinder to move along the slide groove under the action of the slide rail slider, and when the switching block moves, the inclined surface of the switching block will lift the lifting plate under the action of the needle bearing at the bottom of the lifting block, so that the linear bearing moves up along the guide shaft, and the upward movement is sensed by the power-off switch and the induction sheet; after the lifting plate is lifted, the lifting block will be driven to move up, so that the lifting piece to be lifted is lifted by the lifting block, and when it needs to return to its original position after lifting, the switching block retracts, and at this time, the lifting plate is pushed by the elastic force of the spring to drive the lifting block to move down along the guide shaft to its original position under the action of the linear bearing, and at this time, the plane where the top of the lifting block is located is lower than the plane where the top of the connecting plate is located; the invention drives the switching block on the slider to move back and forth by the cylinder, so that the needle bearing rolls on it, and realizes the up and down movement through the linear bearing, and does not require manual operation, thereby increasing work efficiency; at the same time, a spring is placed at the top to ensure that its mechanism will not be suspended due to jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional explosion structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main appearance structure of the utility model;

[0015] Figure 3 This is a side view of the structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the top view of the appearance structure of the utility model.

[0017] In the figure: 1, base; 101, slide groove; 2, connecting plate; 3, spring; 4, lifting plate; 5, linear bearing; 6, lifting block; 7, needle bearing; 8, guide shaft; 9, bearing shaft; 10, switching block; 11, slide rail slider; 12, square cylinder; 13, top block; 14, power off switch; 15, sensor plate; 16, fixing plate. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] The structure of the lifting mechanism provided by the utility model is as follows Figure 1 as well as Figure 2 As shown, it includes a base 1, one end of the surface of the base 1 is installed with a square cylinder 12, and the output end of the square cylinder 12 is fixed with a switching block 10 with a bevel on the top, and the switching block 10 is used for jacking work, and a slide groove 101 is opened on the surface of the base 1, and a slide block 11 is arranged between the switching block 10 and the slide groove 101, and the slide rail of the slide block 11 is fixedly connected to the bottom of the switching block 10 by screws, and the slider of the slide block 11 is fixedly connected to the inside of the slide groove 101, and the slide rail of the slide block 11 slides back and forth on the slider along the inside of the slide groove 101, and a lifting plate 4 is arranged directly above the base 1, and a lifting block 6 is fixed to the central part of the bottom of the lifting plate 4 by bolts, and a rotatable needle bearing 7 is installed at the bottom end of the lifting block 6 through a bearing shaft 9, and the needle bearing 7 is located directly above the switching block 10, and in the jacking state, the needle bearing 7 can roll on the upper surface of the switching block 10.

[0020] During implementation, the square cylinder 12 pushes the switching block 10 to move along the slide groove 101 under the action of the slide rail slider 11. When the switching block 10 moves, its inclined surface will lift the lifting plate 4 under the action of the needle bearing 7 at the bottom of the lifting block 6.

[0021] Furthermore, if Figure 1 as well as Figure 3 As shown, a connecting plate 2 is arranged above the lifting plate 4, and springs 3 are installed at the four corners of the connecting plate 2, and the bottom end of the spring 3 is fixedly connected to the surface of the lifting plate 4, and linear bearings 5 ​​are installed at the four corners of the surface of the lifting plate 4 by screws, and the plane where the top of the linear bearing 5 is located is coplanar with the plane where the top of the lifting plate 4 is located; a top block 13 is arranged on the inner side of the connecting plate 2, and the top block 13 is fixedly connected to the surface of the lifting plate 4 by screws, when the spring 3 is in a compressed state, the plane where the top of the connecting plate 2 is located is lower than the plane where the top block 13 is located; when the spring 3 is in an extended state, the plane where the top of the connecting plate 2 is located is higher than the plane where the top block 13 is located.

[0022] During implementation, the lifting plate 4 will be lifted up and will drive the top block 13 to move upward, so that the top block 13 can be used to lift the part to be lifted. When it needs to return to its original position after lifting, the switching block 10 will retract. At this time, the elastic force of the spring 3 will push the lifting plate 4 to drive the top block 13 to move down to its original position along the guide shaft 8 under the action of the linear bearing 5.

[0023] Furthermore, if Figure 1 as well as Figure 4 As shown, the linear bearing 5 is internally slidably connected with a guide shaft 8, and the top end of the guide shaft 8 is fixedly connected to the surface of the connecting plate 2, and the bottom end of the guide shaft 8 passes through the linear bearing 5 and is fixedly connected to the surface of the base 1; the surface of the base 1 is fixed with a fixing plate 16 by bolts, and the top end of the fixing plate 16 is installed with an electric switch 14, and the surface of one side of the lifting plate 4 is fixed with a sensing plate 15 by bolts, and the sensing plate 15 and the power-off switch 14 cooperate with each other for limiting work during jacking.

[0024] During implementation, when the switching block 10 moves, its inclined surface will lift the lifting plate 4 under the action of the needle bearing 7 at the bottom of the lifting block 6, so that the linear bearing 5 moves up along the guide shaft 8, and the upward movement is sensed by the power-off switch 14 and the sensor sheet 15.

[0025] Working principle: When in use, the square cylinder 12 is first used to push the switching block 10 to move along the slide groove 101 under the action of the slide rail slider 11. When the switching block 10 moves, its inclined surface will lift the lifting plate 4 under the action of the needle bearing 7 at the bottom of the lifting block 6, so that the linear bearing 5 moves up along the guide shaft 8. During the upward movement, it is sensed by the power-off switch 14 and the sensor sheet 15.

[0026] After the lifting plate 4 is lifted, it will drive the top block 13 to move upward, so that the top block 13 can be used to lift the part to be lifted. When it needs to return to its original position after lifting, the switching block 10 retracts. At this time, the elastic force of the spring 3 pushes the lifting plate 4 to drive the top block 13 to move down to its original position along the guide shaft 8 under the action of the linear bearing 5. At this time, the plane where the top of the top block 13 is located is lower than the plane where the top of the connecting plate 2 is located, and finally the use of the lifting mechanism is completed.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A lifting mechanism, comprising a base (1), characterized in that: A square cylinder (12) is installed at one end of the surface of the base (1), and a switching block (10) with a bevel on the top is fixed to the output end of the square cylinder (12), and the switching block (10) is used for lifting work; a lifting plate (4) is arranged directly above the base (1), and a lifting block (6) is fixed to the central part of the bottom of the lifting plate (4) by bolts, and a rotatable needle bearing (7) is installed at the bottom end of the lifting block (6) through a bearing shaft (9); a connecting plate (2) is arranged above the lifting plate (4), and springs (3) are installed at the four corners of the connecting plate (2), and the bottom end of the spring (3) is fixedly connected to the surface of the lifting plate (4); a top block (13) is arranged on the inner side of the connecting plate (2), and the top block (13) is fixedly connected to the surface of the lifting plate (4) by screws.

2. The lifting mechanism according to claim 1, characterized in that: A slide groove (101) is provided on the surface of the base (1), and a slide rail slider (11) is provided between the switching block (10) and the slide groove (101). The slide rail of the slide rail slider (11) is fixedly connected to the bottom of the switching block (10) by screws, and the slider of the slide rail slider (11) is fixedly connected to the inside of the slide groove (101), and the slide rail of the slide rail slider (11) slides back and forth on the slider along the inside of the slide groove (101).

3. The lifting mechanism according to claim 1, characterized in that: Linear bearings (5) are installed at the four corners of the surface of the lifting plate (4) by means of screws, and the plane where the top of the linear bearing (5) is located is coplanar with the plane where the top of the lifting plate (4) is located.

4. The lifting mechanism according to claim 3, characterized in that: The linear bearing (5) is internally slidably connected with a guide shaft (8), and the top end of the guide shaft (8) is fixedly connected to the surface of the connecting plate (2), and the bottom end of the guide shaft (8) penetrates the linear bearing (5) and is fixedly connected to the surface of the base (1).

5. The lifting mechanism according to claim 1, characterized in that: When the spring (3) is in a compressed state, the plane where the top of the connecting plate (2) is located is lower than the plane where the top block (13) is located; when the spring (3) is in an extended state, the plane where the top of the connecting plate (2) is located is higher than the plane where the top block (13) is located.

6. The lifting mechanism according to claim 1, characterized in that: The needle roller bearing (7) is located directly above the switching block (10), and in the jacking state, the needle roller bearing (7) can roll on the upper surface of the switching block (10).

7. The lifting mechanism according to claim 1, characterized in that: A fixing plate (16) is fixed to the surface of the base (1) by means of bolts, and a related electric switch (14) is installed on the top of the fixing plate (16). A sensing plate (15) is fixed to the surface of one side of the lifting plate (4) by means of bolts, and the sensing plate (15) cooperates with the power-off switch (14) to limit the position during lifting.

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