Powerful clamping cylinder

Abstract

The utility model discloses a powerful clamping cylinder, and particularly relates to the technical field of powerful clamping cylinders, the powerful clamping cylinder comprises a mechanical connecting rod part and an air cylinder part, the mechanical connecting rod part comprises a shell, a rotating shaft and a rack connecting piece, the rotating shaft and the rack connecting piece are both arranged in the shell, and the rack connecting piece is in transmission connection with the rotating shaft through a connecting rod; the bottom end of the rack connecting piece is sleeved with a piston rod, the piston rod is sleeved with an angle adjusting assembly, the angle adjusting assembly comprises a mounting plate fixedly arranged on the outer side of the piston rod in a sleeving mode, and pressing teeth and a pressing head are movably arranged in the mounting plate. The pressing teeth are matched with the pressing head, the pressing teeth are meshed with the rack connecting piece, the pressing head is screwed to drive the pressing teeth to move, so that meshing force between the pressing teeth and the rack connecting piece disappears, the rotating shaft can be rotated to be adjusted to a specified angle position, then the pressing head is screwed again, meshing between the rack connecting piece and the pressing teeth is recovered, and normal use can be achieved. The structure is simple, and the use is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of powerful clamping cylinders, and more specifically, to a powerful clamping cylinder. Background Art

[0002] A clamping cylinder is a common pneumatic actuator used to achieve the clamping or fixing function of an object. It usually consists of a cylinder, a cylinder piston, a housing, a fixture, etc. It is mainly used to fix and position workpieces during processes such as machining, assembly, and welding. It generates a powerful clamping force through a pneumatic method to ensure that the workpiece maintains a stable and precise position during operation. This device usually has an adjustable clamping range to adapt to workpieces of different sizes and shapes, and is designed with a safety locking mechanism to prevent accidental loosening during operation.

[0003] For example, in the clamping cylinder with the publication number CN218913326U in the prior art, the position of the limit ring can be adjusted up and down through an adjustment mechanism to meet the requirements of adjusting different upward swing angles of the clamping arms. During the adjustment process, there is no need to disassemble the cylinder, which improves the debugging convenience.

[0004] However, the above prior art still has the following problems when in use: Since the welding line often encounters the need to flip the plate during the welding process to achieve welding, it is necessary to use a clamping cylinder to clamp and flip the workpiece. However, the current clamping cylinder has a fixed stroke and cannot be opened to the required angle, so its use has limitations. Based on this, the utility model provides a powerful clamping cylinder with an adjustable opening angle and a function of air cut-off self-locking at the opening position. Content of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a powerful clamping cylinder. Through the cooperation between the pressing teeth and the pressing head, and the meshing of the pressing teeth and the rack connecting piece, turning the pressing head drives the pressing teeth to move, and then the rotating shaft can be adjusted to the specified angular position. And by using the self-locking mechanism in the cylinder body to lock with the piston rod, the function of air cut-off self-locking at the opening angle of the piston rod is realized, so as to solve the problems appearing in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A powerful clamping cylinder, comprising a mechanical link part and a cylinder part. The mechanical link part includes a housing, a rotating shaft, and a rack connecting piece. The rotating shaft and the rack connecting piece are both arranged in the housing, and the rack connecting piece is connected to the rotating shaft through a link. The bottom end of the rack connecting piece is sleeved with a piston rod, and an angle adjustment component is sleeved on the piston rod.

[0007] The angle adjustment assembly includes a mounting plate fixedly sleeved outside the piston rod. A pressing tooth and a pressing head are movably arranged inside the mounting plate. The pressing head is arranged outside the pressing tooth and is threadedly connected to the mounting plate. The pressing tooth is slidably connected to the mounting plate, and the pressing head is rotatably connected to the pressing tooth. One end of the pressing tooth sequentially penetrates through the mounting plate and the piston rod and meshes with a rack connecting member;

[0008] The cylinder part includes a cylinder block fixed to the bottom of the housing. A detachable sensor assembly is fixedly arranged on one side of the housing;

[0009] The bottom of the piston rod extends into the cylinder block. The bottom end cross-section of the piston rod is set as a wedge surface. A self-locking groove is formed at the bottom of one side of the piston rod for fixing the piston rod;

[0010] An air hole is formed on one side of the cylinder block. A self-locking mechanism is arranged inside the air hole. The self-locking mechanism includes a piston block and a return spring. The piston block is arranged between the return spring and the air hole. One end of the piston block away from the return spring is locked with the self-locking groove, so that the piston rod can cooperate with the self-locking mechanism;

[0011] In a preferred embodiment, an installation opening is formed on one side of the housing. The sensor assembly includes an induction strip, an inductor and two induction blocks. The induction strip is fixed to the top of the cylinder block and is arranged inside the housing. The inductor is detachably fixed to the induction strip. Both induction blocks are fixedly embedded in the housing, and the position of the piston rod can be detected by using the sensor assembly;

[0012] In a preferred embodiment, an adjustment hole is formed on the induction strip, which is convenient for the staff to use an M5 hexagon wrench to pass through the adjustment hole to loosen or tighten the pressing head;

[0013] In a preferred embodiment, scale lines indicating angles are processed on the outer wall of the housing, which is convenient for the staff to view angle data;

[0014] In a preferred embodiment, an M5 hexagon socket is formed on one side of the pressing head away from the pressing tooth, which is convenient for using an M5 hexagon wrench to loosen or tighten the pressing head;

[0015] The technical effects and advantages of the present utility model are as follows:

[0016] 1. In the present utility model, through the cooperation between the pressing tooth and the pressing head, and the engagement between the pressing tooth and the rack connecting member, turning the pressing head drives the pressing tooth to move, so that the biting force between the pressing tooth and the rack connecting member disappears. Then the rotating shaft can be adjusted to the specified angle position. After that, the pressing head is tightened again, so that the rack connecting member and the pressing tooth are restored to engagement, and then it can be used normally. The structure is simple and very convenient to use;

[0017] 2. A self-locking mechanism is arranged inside the cylinder block. By cooperating with the return spring and the piston block, when the air is cut off inside the cylinder block, the piston block automatically gets stuck in the self-locking groove on the piston rod, making the piston rod unable to move up and down, thus realizing the function of self-locking with air cut off in the open position. When the air is supplied, the piston block moves out of the self-locking groove, and the piston rod can resume normal use, thereby improving the use safety of the clamping cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a rear view of the present invention;

[0020] Figure 3 is a schematic diagram of the piston rod being locked of the present invention;

[0021] Figure 4 is Figure 3 an enlarged view of part A of

[0022] Figure 5 is Figure 3 an enlarged view of part B of

[0023] The reference numerals are: 1. Mechanical connecting rod part; 2. Cylinder part; 3. Angle adjusting component; 4. Sensor component; 5. Installation port; 6. Adjusting hole; 7. Wedge surface; 8. Self-locking groove; 9. Air hole; 10. Self-locking mechanism; 11. Scale line;

[0024] 101. Housing; 102. Rotating shaft; 103. Rack connecting piece; 104. Connecting rod; 105. Piston rod;

[0025] 201. Cylinder block;

[0026] 301. Mounting plate; 302. Pressing tooth; 303. Pressing head;

[0027] 401. Inductive strip; 402. Inductor; 403. Inductive block;

[0028] 1001. Piston block; 1002. Return spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Refer to the attached drawings of the specificationFigures 1-5 The utility model provides a strong clamping cylinder, including a mechanical connecting rod part 1 and a cylinder part 2, wherein the mechanical connecting rod part 1 includes a housing 101, a rotating shaft 102, and a rack connecting member 103, wherein the rotating shaft 102 and the rack connecting member 103 are both arranged in the housing 101, and the rack connecting member 103 is connected to the rotating shaft 102 through a connecting rod 104, and a piston rod 105 is sleeved on the bottom end of the rack connecting member 103;

[0031] The cylinder part 2 includes a shell 101, the shell 101 is fixed at the bottom of the shell 101, an adjustment port is opened on one side of the shell 101, a detachable sensor assembly 4 is fixed on one side of the shell 101, and an installation port 5 is opened on one side of the shell 101. The sensor assembly 4 includes a sensor strip 401, a sensor 402 and two sensor blocks 403. The sensor strip 401 is fixed on the top of the cylinder body 201 and is arranged in the shell 101. The sensor 402 is detachably fixed on the sensor strip 401, and the two sensor blocks 403 are fixedly embedded in the shell 101.

[0032] The piston rod 105 is sleeved with an angle adjustment component 3, and the angle adjustment component 3 includes a mounting plate 301 fixedly sleeved on the outside of the piston rod 105, and a pressing tooth 302 and a pressing head 303 are movably provided in the mounting plate 301, and the pressing head 303 is arranged on the outside of the pressing tooth 302 and is threadedly connected to the mounting plate 301, the pressing tooth 302 is slidably connected to the mounting plate 301, and the pressing head 303 is rotatably connected to the pressing tooth 302, and one end of the pressing tooth 302 passes through the mounting plate 301 and the piston rod 105 in sequence and meshes with the rack connector 103;

[0033] By installing the sensing strip 401 and the sensor 402 on the shell 101, it is used to detect the operating status of the clamping cylinder and sense whether the clamping cylinder is opened and clamped in place. The two sensing blocks 403 arranged inside the mechanical connecting rod part 1 can detect the position of the piston rod 105. Specifically, there are two sensing points in the sensing strip 401, namely the clamping sensing point SQ1 and the opening sensing point SQ2. When the piston rod 105 moves upward to the clamping position, SQ1 senses the upper sensing block 403, and then outputs a clamping signal. When the piston rod 105 moves downward to the opening position, SQ2 senses the lower sensing block 403, and then outputs an opening signal. No matter how the opening angle changes, there is no need to adjust the sensing point position of the sensor 12. It has an adaptive function, which makes on-site adjustment more convenient and flexible. In addition, the sensor 402 and the sensing strip 401 are detachably fixed together, so that the staff only needs to replace the sensor 402, and there is no need to replace the entire set of sensors 12, which saves costs and is simple and quick.

[0034] Moreover, for convenient angle adjustment, adjustment holes 6 are provided on the induction bar 401, and an M5 hexagon socket is provided on the side of the pressing head 303 away from the pressing teeth 302, facilitating the staff to use an M5 hexagon wrench to pass through the adjustment holes 6 to loosen or tighten the pressing head 303. The outer wall of the housing 101 is processed with scale lines 11 indicating angles, facilitating the staff to view the angle data of the rotating shaft 102.

[0035] During use, first rotate the rotating shaft 102 to the maximum opening angle position, so that the mounting plate 301 on the piston rod 105 moves to the adjustment holes 6 on the induction bar 401. Then remove the inductor 402 of the sensor from the induction bar 401, use an M5 hexagon wrench to pass through the adjustment holes 6 and insert it into the pressing head 303. When the pressing head 303 is loosened, the pressing teeth 302 are separated from the rack connecting member 103. It should be noted that it is not necessary to screw out the pressing head 303 completely. Then the staff can rotate the rotating shaft 102 to the opening angle position that needs to be adjusted. After that, tighten the pressing head 303 again to push the pressing teeth 302, so that the rack connecting member 103 and the pressing teeth 302 are restored to engagement, avoiding the adjusted angle from changing again due to the movement of the rack connecting member 103 and the piston rod 105. Finally, reinstall the inductor 402 on the induction bar 401. The structure is simple and very convenient to use.

[0036] Refer to the attached Figures 1-5 The bottom of the piston rod 105 extends into the housing 101. The bottom end cross-section of the piston rod 105 is set as a wedge surface 7. A self-locking groove 8 is provided at the bottom on one side of the piston rod 105 for fixing the piston rod 105. An air hole 9 is provided on one side of the housing 101. A self-locking mechanism 10 is provided inside the air hole 9. The self-locking mechanism 10 includes a piston block 1001 and a return spring 1002. The piston block 1001 is arranged between the return spring 1002 and the air hole 9. One end of the piston block 1001 away from the return spring 1002 is locked with the self-locking groove 8, so that the piston rod 105 can cooperate with the self-locking mechanism 10.

[0037] When the piston rod 105 reaches the bottom, that is, in the open state of the clamping cylinder, in the case of no air supply inside the housing 101, the return spring 1002 of the self-locking mechanism 10 has no air pressure to push the piston block 1001 inward, so it gets stuck in the self-locking groove 8 on the piston rod 105, making the piston rod 105 unable to move up and down, realizing the function of self-locking when the air supply is cut off at the open position, as Figure 3 、 5 shown;

[0038] A self-locking mechanism 10 is provided at the bottom of the housing 101. When the air hole 9 at the bottom of the housing 101 is ventilated, the return spring 1002 is compressed due to the air pressure, so that the piston block 1001 is taken away from the self-locking groove 8 by the return spring 1002, and the piston rod 105 can resume normal use.

[0039] Finally, the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A strong clamping cylinder, characterized in that: It comprises a mechanical connecting rod part (1) and a cylinder part (2); The mechanical connecting rod part (1) comprises a housing (101), a rotating shaft (102), and a rack connecting member (103); the rotating shaft (102) and the rack connecting member (103) are both arranged in the housing (101), and the rack connecting member (103) is connected to the rotating shaft (102) by a connecting rod (104); a piston rod (105) is sleeved on the bottom end of the rack connecting member (103), and an angle adjustment component (3) is sleeved on the piston rod (105); The angle adjustment assembly (3) comprises a mounting plate (301) fixedly sleeved on the outside of the piston rod (105), a pressure tooth (302) and a pressure head (303) movably arranged in the mounting plate (301), and the pressure head (303) is arranged on the outside of the pressure tooth (302) and is threadedly connected to the mounting plate (301), the pressure tooth (302) is slidably connected to the mounting plate (301), and the pressure head (303) is rotatably connected to the pressure tooth (302), and one end of the pressure tooth (302) passes through the mounting plate (301) and the piston rod (105) in sequence and meshes with the rack connecting member (103); The cylinder part (2) comprises a cylinder body (201), wherein the cylinder body (201) is fixed to the bottom of the housing (101), and a detachable sensor assembly (4) is fixedly provided on one side of the housing (101); The bottom of the piston rod (105) extends into the interior of the cylinder body (201), the cross section of the bottom end of the piston rod (105) is configured as a wedge-shaped surface (7), and a self-locking groove (8) is provided at the bottom of one side of the piston rod (105); An air hole (9) is provided on one side of the cylinder body (201), and a self-locking mechanism (10) is provided inside the air hole (9). The self-locking mechanism (10) comprises a piston block (1001) and a return spring (1002). The piston block (1001) is arranged between the return spring (1002) and the air hole (9), and one end of the piston block (1001) away from the return spring (1002) is locked with the self-locking groove (8).

2. A strong clamping cylinder according to claim 1, characterized in that: A mounting opening (5) is provided on one side of the housing (101); the sensor assembly (4) comprises a sensing strip (401), a sensor (402) and two sensing blocks (403); the sensing strip (401) is fixed to the top of the cylinder body (201), and the sensing strip (401) is arranged in the housing (101); the sensor (402) is detachably fixed to the sensing strip (401), and the two sensing blocks (403) are both fixedly embedded in the housing (101).

3. A strong clamping cylinder according to claim 2, characterized in that: The sensing strip (401) is provided with an adjustment hole (6).

4. A strong clamping cylinder according to claim 1, characterized in that: The outer wall of the housing (101) is processed with scale lines (11) indicating angles.

5. A strong clamping cylinder according to claim 1, characterized in that: The pressure head (303) is provided with an M5 hexagonal socket on one side away from the pressure teeth (302).

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