Rotary pressing cylinder structure

Abstract

The utility model relates to the technical field of cylinders, in particular to a rotary pressing cylinder structure which comprises a machine body and an output shaft installed at the upper end of the machine body, a pressing plate is arranged above the output shaft, the upper end of the output shaft is connected with a connecting rod, the upper end of the pressing plate is in threaded connection with an installation bolt, and the installation bolt is screwed into the connecting rod. A movable cavity is formed in the pressing plate, a rotating rod is rotationally connected to the upper end of the pressing plate, a sealing cover used for sealing a mounting bolt is arranged above the pressing plate, a groove is formed in the left end of the upper face of the pressing plate, and the lower end of the sealing cover is inserted into the groove; the right end of the sealing cover is rotationally connected to the outside of the rotating rod. A moving assembly is arranged between the rotating rod and the moving block. According to the clamping device, the effect of clamping objects with different distances from the machine body can be achieved by rotating the rotating rod, and meanwhile, the mounting bolt is well protected from being rusted to affect disassembly and replacement of the pressing plate.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinders and discloses a rotary downward-pressing cylinder structure. Background Art

[0002] The rotary downward pressure cylinder is a type of cylinder, usually used as a part of a clamp to clamp objects. A piston rod and a piston are arranged inside the rotary downward pressure cylinder. When working, the piston rod usually rotates first and then presses down. The rotation process ends before the downward pressure process. A clamping plate is installed on the piston rod so that the object can be clamped by the clamping plate. The installed clamping plate is usually provided with a bolt that can adjust the clamping height. By tightening the bolt so that the height of the lower end of the bolt corresponds to the height of the object to be clamped, objects of different heights can be clamped.

[0003] The length of the pressure plate of the existing rotary downward pressure cylinder structure is usually fixed, and it is usually necessary to replace the pressure plate to achieve the effect of clamping objects at different distances, which is inconvenient. In addition, the pressure plate is usually installed with bolts when connected to the piston rod. The upper end of the bolt is usually exposed to the air and rusts, which affects the replacement of the pressure plate. Utility Model Content

[0004] The purpose of the utility model is to provide a rotary downward pressure cylinder structure to address the above-mentioned problems and shortcomings. By rotating the rotating rod, the objects at different distances from the machine body can be clamped, while the mounting bolts are better protected to prevent them from rusting and affecting the disassembly and replacement of the pressure plate.

[0005] A rotary downward pressure cylinder structure comprises a body and an output shaft mounted on the upper end thereof;

[0006] A pressure plate is provided above the output shaft, a connecting rod is connected to the upper end of the output shaft, a mounting bolt is threadedly connected to the upper end of the pressure plate, and the mounting bolt is screwed into the connecting rod;

[0007] A moving block is provided on the right side of the pressure plate, an adjusting bolt is threadedly connected to the inside of the moving block, and a nut located below the moving block is rotatably connected to the outside of the adjusting bolt. A moving cavity is provided inside the pressure plate, a rotating rod is rotatably connected to the upper end of the pressure plate, and a sealing cover for sealing the mounting bolt is provided above the pressure plate. A groove is provided on the left end of the pressure plate, the lower end of the sealing cover is inserted into the groove, and the right end of the sealing cover is rotatably connected to the outside of the rotating rod, and a moving component is provided between the rotating rod and the moving block.

[0008] Furthermore, a slot is provided below the pressing plate, and the upper end of the connecting rod is inserted into the slot.

[0009] Furthermore, side grooves are formed on the left and right sides of the inner wall of the slot, and the left and right ends of the connecting rod are connected to limit blocks inserted into the adjacent side grooves.

[0010] Furthermore, the moving assembly includes a second bevel gear, a screw, a slider, a moving rod and a first bevel gear, the screw is rotatably connected to the inside of the moving cavity, and the slider is threadedly connected to the outside of the screw and slidably connected to the inside of the moving cavity.

[0011] Furthermore, two moving rods are provided and are respectively connected to the upper and lower ends of the right surface of the sliding block, and the right end of the moving rod passes through the pressure plate and is connected to the left side of the moving block.

[0012] Furthermore, the bevel gear 1 is connected to the outside of the screw rod, and the bevel gear 2 is meshed with the bevel gear 1 and connected to the lower end of the rotating rod.

[0013] Beneficial effects of the utility model:

[0014] After the installation of the mounting bolts is completed, the left end of the sealing cover is made of rubber, and a groove corresponding to the sealing cover is opened on the pressure plate. The sealing cover has a certain elasticity and is interference fit with the groove. The sealing cover is inserted into the groove, and the lower end of the sealing cover is squeezed to ensure its stability. The sealing cover can seal the upper end of the mounting bolt to prevent rust at the mounting bolt from affecting the disassembly and replacement of the pressure plate. The rotating connection between the right end of the sealing cover and the rotating rod can prevent the sealing cover from being lost.

[0015] By rotating the rotating rod, the bevel gear 2 at the lower end of the rotating rod can rotate with the rotating rod. When the bevel gear 2 rotates, the bevel gear 1 can be driven to rotate, and the screw rod can rotate with the bevel gear 1. When the screw rod rotates, the slider can move left and right along the moving cavity, and the moving rod on the right side of the slider can also move left and right with the slider, and the moving block can move left and right with the moving rod. At this time, the length of the adjusting bolt relative to the machine body can be changed, thereby achieving the effect of clamping objects at different distances from the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall main plane structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 A local enlarged structural schematic diagram;

[0018] Figure 3 It is a schematic diagram of the right side cross-sectional structure of the pressing plate of the utility model;

[0019] Figure 4 It is a schematic diagram of the top cross-sectional structure of the output shaft of the utility model.

[0020] Markings in the figure: body 1, output shaft 2, pressure plate 3, moving block 4, connecting rod 5, limit block 6, adjusting bolt 7, nut 8, slot 9, moving chamber 10, screw 11, slider 12, rotating rod 13, moving rod 14, bevel gear one 15, mounting bolt 16, bevel gear two 17, sealing cover 18, side groove 19, groove 20. DETAILED DESCRIPTION

[0021] like Figures 1 to 4 As shown, the present application is a rotary downward pressure cylinder structure, comprising a body 1 and an output shaft 2 mounted on the upper end thereof, a pressure plate 3 is provided above the output shaft 2, a connecting rod 5 is connected to the upper end of the output shaft 2, a mounting bolt 16 is threadedly connected to the upper end of the pressure plate 3, and the mounting bolt 16 is screwed into the connecting rod 5;

[0022] A moving block 4 is provided on the right side of the pressing plate 3, an adjusting bolt 7 is threadedly connected inside the moving block 4, a nut 8 located below the moving block 4 is rotatably connected to the outside of the adjusting bolt 7, a moving cavity 10 is provided inside the pressing plate 3, a rotating rod 13 is rotatably connected to the upper end of the pressing plate 3, a sealing cover 18 for sealing the mounting bolt 16 is provided above the pressing plate 3, a groove 20 is provided on the left end of the upper side of the pressing plate 3, the lower end of the sealing cover 18 is inserted into the groove 20, the right end of the sealing cover 18 is rotatably connected to the outside of the rotating rod 13, and a moving assembly is provided between the rotating rod 13 and the moving block 4;

[0023] A slot 9 is provided below the pressure plate 3, and the upper end of the connecting rod 5 is inserted into the slot 9. Side slots 19 are provided on both the left and right sides of the inner wall of the slot 9, and the left and right ends of the connecting rod 5 are connected to limit blocks 6 inserted into the adjacent side slots 19;

[0024] When the rotary downward pressure cylinder structure is working, the output shaft 2 at the upper end of the body 1 can rotate and move downward, aligning the slot 9 under the pressure plate 3 with the connecting rod 5, and the connecting rod 5 can be inserted into the slot 9. Figure 2 and Figure 4 As shown, the limit blocks 6 on the left and right sides of the connecting rod 5 can be inserted into the adjacent side grooves 19, and the limit blocks 6 can limit the connecting rod 5. The mounting bolts 16 are screwed into the connecting rod 5, and the pressure plate 3 can be limited. Figure 1 As shown, the moving block 4 at the right end of the pressing plate 3 can also be installed with a limiter. The adjusting bolt 7 can be rotated downward by rotating the adjusting bolt 7, and the nut 8 is rotated so that its upper surface fits with the lower surface of the moving block 4. The height of the lower end of the adjusting bolt 7 corresponds to the height of the object to be clamped. The nut 8 can limit the height of the lower end of the adjusting bolt 7 to a certain extent, and the user can adjust the height of the adjusting bolt 7 according to the height of the object to be clamped.

[0025] When the user needs to replace the pressing plate 3, unscrew the mounting bolts 16, move the pressing plate 3 upward and remove it, and replace it with a new pressing plate 3 and install it according to the above steps;

[0026] The moving assembly includes a bevel gear 17, a screw 11, a slider 12, a moving rod 14 and a bevel gear 15. The screw 11 is rotatably connected to the inside of the moving cavity 10. The slider 12 is threadedly connected to the outside of the screw 11 and slidably connected to the inside of the moving cavity 10. The moving rod 14 is provided with two and is respectively connected to the upper and lower ends of the right surface of the slider 12. The right end of the moving rod 14 passes through the pressure plate 3 and is connected to the left side of the moving block 4.

[0027] The bevel gear 15 is connected to the outside of the screw rod 11, and the bevel gear 2 17 is meshed with the bevel gear 15 and connected to the lower end of the rotating rod 13;

[0028] When the user needs to adjust the length of the adjusting bolt 7 relative to the body 1 to clamp objects at different distances from the body 1, since a sealing cover 18 for sealing the mounting bolt 16 is provided above the pressing plate 3, and the right end of the sealing cover 18 is rotatably connected to the outside of the rotating rod 13, the sealing cover 18 will not rotate with the rotating rod 13. After the mounting bolt 16 is installed, the left end of the sealing cover 18 is made of rubber, and a groove 20 corresponding to the sealing cover 18 is opened on the pressing plate 3. The sealing cover 18 has a certain elasticity and is an interference fit with the groove 20. The sealing cover 18 is inserted into the groove 20, and the lower end of the sealing cover 18 is squeezed to ensure its stability. At this time, the sealing cover 18 can seal the upper end of the mounting bolt 16 to prevent rust at the mounting bolt 16 from affecting the disassembly and replacement of the pressing plate 3.

[0029] When the sealing cover 18 needs to be removed, the sealing cover 18 only needs to be pulled upwards, and the mounting bolts 16 inside the sealing cover 18 can be exposed. The sealing cover 18 is rotated along the outside of the rotating rod 13, so that the user can remove the mounting bolts 16 conveniently. The rotating connection between the right end of the sealing cover 18 and the rotating rod 13 can prevent the sealing cover 18 from being lost.

[0030] When the rotating rod 13 is rotated, the bevel gear 2 17 at the lower end of the rotating rod 13 can rotate with the rotating rod 13. When the bevel gear 2 17 rotates, the bevel gear 15 can be driven to rotate. The screw rod 11 can rotate with the bevel gear 15. When the screw rod 11 rotates, the slider 12 can move left and right along the moving cavity 10. The moving rod 14 on the right side of the slider 12 can also move left and right with the slider 12. Figure 1 As shown, the moving block 4 can move left and right along with the moving rod 14 , and at this time, the length of the adjusting bolt 7 extending relative to the machine body 1 can be changed, thereby achieving the effect of clamping objects at different distances from the machine body 1 .

Claims

1. A rotary downward pressure cylinder structure, comprising a body (1) and an output shaft (2) mounted on the upper end thereof, characterized in that: A pressure plate (3) is provided above the output shaft (2), the upper end of the output shaft (2) is connected to a connecting rod (5), the upper end of the pressure plate (3) is threadedly connected to a mounting bolt (16), and the mounting bolt (16) is screwed into the connecting rod (5); A moving block (4) is provided on the right side of the pressure plate (3), an adjusting bolt (7) is internally threadedly connected to the moving block (4), and the adjusting bolt (7) is externally rotatably connected to a nut (8) located below the moving block (4). A moving cavity (10) is provided inside the pressure plate (3), and a rotating rod (13) is rotatably connected to the upper end of the pressure plate (3). A sealing cover (18) for sealing the mounting bolt (16) is provided above the pressure plate (3), a groove (20) is provided on the left end of the upper side of the pressure plate (3), and the lower end of the sealing cover (18) is inserted into the groove (20), and the right end of the sealing cover (18) is rotatably connected to the outside of the rotating rod (13), and a moving component is provided between the rotating rod (13) and the moving block (4).

2. A rotary downward pressure cylinder structure according to claim 1, characterized in that: A slot (9) is provided below the pressing plate (3), and the upper end of the connecting rod (5) is inserted into the slot (9).

3. A rotary downward pressure cylinder structure according to claim 2, characterized in that: The left and right inner walls of the slot (9) are both provided with side grooves (19), and the left and right ends of the connecting rod (5) are both connected with limit blocks (6) inserted into the adjacent side grooves (19).

4. The rotary downward pressure cylinder structure according to claim 1, characterized in that: The moving assembly comprises a second bevel gear (17), a screw rod (11), a slider (12), a moving rod (14) and a first bevel gear (15); the screw rod (11) is rotatably connected to the inside of the moving cavity (10); the slider (12) is threadedly connected to the outside of the screw rod (11) and slidably connected to the inside of the moving cavity (10).

5. A rotary downward pressure cylinder structure according to claim 4, characterized in that: Two moving rods (14) are provided and are respectively connected to the upper and lower ends of the right surface of the slider (12); the right end of the moving rod (14) passes through the pressure plate (3) and is connected to the left side of the moving block (4).

6. A rotary downward pressure cylinder structure according to claim 5, characterized in that: The bevel gear 1 (15) is connected to the outside of the screw rod (11), and the bevel gear 2 (17) is meshed with the bevel gear 1 (15) and connected to the lower end of the rotating rod (13).

Images