Positioning and locking cylinder
By designing a positioning and locking cylinder and utilizing a combination of insert rods, guide rods, and limiting mechanisms, the problem of inconvenient adjustment range of the clamping plate in existing technologies has been solved, enabling rapid adjustment of the locking range and stable locking, thus improving the practicality and efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN JIARUI IND AUTOMATION CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-06-23
AI Technical Summary
In existing cylinder devices, the adjustment range of the two clamping plates is not convenient to adjust, resulting in a limited locking range, making it difficult to adapt to the fixing of workpieces of different sizes, thus reducing the practicality and efficiency of the equipment.
A positioning and locking cylinder was designed. Through the combination of a plug rod, a guide rod, and a limiting mechanism, the clamping block can be flexibly adjusted and stably locked. The cylinder includes a sliding block, a mounting frame, a locking mechanism, and a cylinder, which allows for rapid adjustment of the locking range.
It enables rapid adjustment of the locking range, adapts to locking of workpieces of different sizes, improves the practicality and work efficiency of the equipment, and ensures the stability of the locking.
Smart Images

Figure CN224390572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of locking mechanism technology, and in particular to a positioning and locking cylinder. Background Technology
[0002] A cylinder is a device that converts the energy of compressed gas into linear reciprocating mechanical energy. It typically consists of a cylinder barrel, piston, piston rod, and front and rear end caps. It uses gas pressure to drive the piston to reciprocate within the cylinder barrel, thereby driving the piston rod to perform work. Cylinders are widely used in many fields such as industrial automation, machinery manufacturing, automobiles, and aerospace. They are often used to lock workpieces.
[0003] In existing technologies, the range of the two clamping plates in the device that uses a cylinder to lock the workpiece is not easy to adjust, which makes the locking range relatively limited. When it is necessary to fix workpieces of different sizes, a lot of time needs to be spent adjusting the device, which reduces the practicality of the equipment. To address this issue, a positioning and locking cylinder has been designed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a positioning and locking cylinder.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A positioning and locking cylinder includes a worktable. A strip plate is fixedly fitted at the top center of the worktable. A groove is formed at the top of the strip plate. Rectangular holes are formed at the bottom of both sides of the groove. Sliding blocks are slidably connected to both ends of the groove. Stop bars are fixedly connected to both sides of the top of the strip plate at the groove. A sliding groove is formed at the top of each sliding block. Multiple insertion holes are formed at equal intervals on both sides of each sliding groove. A mounting frame is slidably connected to each sliding groove. A locking mechanism is provided inside each mounting frame. The locking mechanism includes insertion rods slidably fitted inside both sides of the mounting frame. Square holes adapted to the insertion rods are formed at both ends of the mounting frame. The insertion rods are adapted to the insertion holes. Vertical plates are fixedly connected to the sides of two adjacent insertion rods. Strip holes are formed at the top of two vertical plates. The same first spring is fixedly connected between the two vertical plates. A fixing plate is fixedly connected to the top of the mounting frame. Arc-shaped holes are formed on both sides of the fixing plate. A slot is formed on one side of the middle of the fixing plate.
[0007] As a further embodiment of this utility model, a clamping block is provided at the middle of the top of each of the two fixing plates, and a rubber pad is fixedly connected to the side of each of the two clamping blocks that are close to each other.
[0008] As a further embodiment of this utility model, guide rods are fixedly connected to both ends of the bottom of the two clamping blocks, and the bottom of each guide rod is slidably connected to the strip hole through the adjacent arc-shaped hole. By rotating the clamping blocks, the two insert rods retract relative to each other under the action of the two guide rods.
[0009] As a further embodiment of this utility model, a limiting mechanism is provided at the bottom of each of the two clamping blocks on the side away from each other. The limiting mechanism includes a fixed block fixedly connected to one side of the bottom of the clamping block, a limiting rod slidably sleeved on the fixed block, a circular hole adapted to the limiting rod in the middle of the fixed block, a fixed ring fixedly sleeved on the limiting rod at the bottom of the fixed block, a second spring sleeved on the limiting rod between the fixed block and the limiting rod, a pull rod fixedly connected to the top of the limiting rod, and the bottom of the limiting rod adapted to the slot. By setting the limiting mechanism, the clamping blocks will not rotate during operation.
[0010] As a further embodiment of this utility model, each of the two sliding blocks is fixedly connected to a vertical block at its bottom. Each vertical block slides through a rectangular hole that is close to each other. A cylinder is fixedly connected to the bottom of one of the vertical blocks, and the other end of the cylinder is fixedly connected to the bottom of the other vertical block. By extending and retracting the cylinder, the two sliding blocks can move closer to or further away from each other.
[0011] As a further embodiment of this utility model, a rotating rod is rotatably connected to the middle of the bottom of the strip plate, and both ends of the rotating rod are rotatably connected to connecting rods. The other end of each connecting rod is rotatably connected to one side of an adjacent vertical block. Through the cooperation of the connecting rods and the rotating rod, the two sliding blocks move synchronously.
[0012] The beneficial effects of this utility model are as follows:
[0013] This utility model, by employing techniques such as the vertical plate slotted hole of the insertion rod, the first spring, the clamping block, and the guide rod, allows the two insertion rods to retract by rotating the clamping block when the initial position of the two clamping blocks needs to be adjusted. This enables the mounting frame to slide along the sliding block, allowing the insertion rods to reach the corresponding insertion holes for insertion and fixation. This effectively solves the problem of inconvenient adjustment of the locking range mentioned in the background technology, thereby achieving rapid adjustment of the locking range. This facilitates users in locking workpieces of different sizes, improving the practicality of the equipment and increasing work efficiency.
[0014] This utility model, through the setting of a limiting rod, a fixing block, a second spring, etc., ensures that the clamping block will not rotate on its own during use, thus guaranteeing the stability of the locking operation. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of a positioning and locking cylinder proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of the positioning and locking cylinder proposed in this utility model, viewed from below.
[0017] Figure 3 This is a schematic diagram of the structure of one end of the positioning and locking cylinder strip plate proposed in this utility model;
[0018] Figure 4 This is a schematic diagram of the internal structure of a positioning and locking cylinder mounting frame proposed in this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the positioning and locking cylinder clamping block proposed in this utility model;
[0020] Figure 6 This utility model proposes a positioning and locking cylinder. Figure 5 An enlarged structural diagram of point A.
[0021] In the diagram: 1. Workbench; 2. Strip plate; 201. Rectangular hole; 202. Stop bar; 3. Vertical block; 301. Cylinder; 4. Rotating rod; 401. Connecting rod; 5. Sliding block; 501. Insertion hole; 6. Mounting frame; 7. Insertion rod; 701. Vertical plate; 702. Strip hole; 703. First spring; 704. Fixing plate; 705. Arc hole; 706. Slot; 8. Clamping block; 801. Rubber pad; 802. Guide rod; 9. Fixing block; 901. Limiting rod; 902. Fixing ring; 903. Second spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] Reference Figures 1-6A positioning and locking cylinder includes a worktable 1. A strip plate 2 is fixedly sleeved on the top center of the worktable 1. A groove is formed on the top of the strip plate 2. Rectangular holes 201 are formed on the bottom of both sides of the groove. Sliding blocks 5 are slidably connected to both ends of the groove. Stop bars 202 are fixedly connected to both sides of the top of the strip plate 2 in the groove. A sliding groove is formed on the top of each sliding block 5. Multiple insertion holes 501 are formed at equal intervals on both sides of each sliding groove. A mounting frame 6 is slidably connected in each sliding groove. A locking mechanism is provided inside each mounting frame 6. The locking mechanism includes insertion rods 7 slidably sleeved on both sides inside the mounting frame 6. Both ends are provided with square holes that are compatible with the insertion rod 7, and the insertion rod 7 is compatible with the insertion hole 501. A vertical plate 701 is fixedly connected to the side of the two insertion rods 7 that are close to each other. A strip hole 702 is provided at the top of the two vertical plates 701. The same first spring 703 is fixedly connected between the two vertical plates 701. A fixing plate 704 is fixedly connected to the top of the mounting frame 6. An arc hole 705 is provided on both sides of the fixing plate 704, and a slot hole 706 is provided on one side of the middle of the fixing plate 704. Through the cooperation of the insertion rod 7 and the insertion hole 501, the mounting frame 6 is in a stable state inside the sliding block 5. When the insertion rod 7 retracts, its position can be adjusted at will.
[0025] In this embodiment, a block 8 is clamped at the middle of the top of each of the two fixing plates 704, and a rubber pad 801 is fixedly connected to the side of the two clamping blocks 8 that are close to each other.
[0026] In this embodiment, guide rods 802 are fixedly connected to both ends of the bottom of the two clamping blocks 8, and the bottom of each guide rod 802 is slidably connected to the strip hole 702 through the adjacent arc-shaped hole 705. As the clamping blocks 8 rotate, the insertion rod 7 retracts.
[0027] In this embodiment, a limiting mechanism is provided at the bottom of the two clamping blocks 8 on the side away from each other. The limiting mechanism includes a fixed block 9 fixedly connected to one side of the bottom of the clamping block 8. A limiting rod 901 is slidably sleeved on the fixed block 9. A circular hole adapted to the limiting rod 901 is opened in the middle of the fixed block 9. A fixing ring 902 is fixedly sleeved on the bottom of the limiting rod 901. A second spring 903 is sleeved between the limiting rod 901 and the fixed block 9. A pull rod is fixedly connected to the top of the limiting rod 901, and the bottom of the limiting rod 901 is adapted to the slot 706. By setting the limiting mechanism, the clamping block 8 will not rotate when working, thus improving the stability of the device.
[0028] In this embodiment, the bottom of each of the two sliding blocks 5 is fixedly connected to a vertical block 3. Each vertical block 3 slides through a rectangular hole 201 that is close to each other. The bottom of one of the vertical blocks 3 is fixedly connected to a cylinder 301, and the other end of the cylinder 301 is fixedly connected to the bottom of the other vertical block 3. The cylinder 301 is connected to a pneumatic component. The cylinder 301 is used to make the two sliding blocks 5 move closer to each other.
[0029] In this embodiment, a rotating rod 4 is rotatably connected to the middle of the bottom of the strip plate 2, and both ends of the rotating rod 4 are rotatably connected to connecting rods 401. The other end of each connecting rod 401 is rotatably connected to one side of the adjacent vertical block 3. Through the arrangement of connecting rods 401 and rotating rod 4, the two sliding blocks 5 can move closer or further away synchronously.
[0030] Working principle: During use, the extension and retraction of cylinder 301 causes the two sliding blocks 5 to move closer together, which in turn causes the two clamping blocks 8 to move closer together, thus locking the object. The two connecting rods 401 are only the length of one end of the rotating rod 4. Through the arrangement of the rotating rod 4 and connecting rods 401, the two sliding blocks 5 move closer or further apart synchronously. When it is necessary to adjust the clamping range of the two clamping blocks 8, pull the top lever of the limiting rod 901, causing the bottom of the limiting rod 901 to separate from the slot 706. Then, rotate the clamping blocks 8. Under the action of the guide rod 802, while the guide rod 802 slides in the arc-shaped hole 705, it also drives the two insertion rods 7 to move closer to each other under the action of the strip hole 702, and then separates from the insertion hole 501. At this time, the mounting frame 6 can slide inside the sliding block 5 to adjust the initial position of the clamping block 8, thereby adjusting the locking range and improving the practicality of the device. The setting of the limit rod 901, the fixing ring 902 and the slot hole 706, etc., allows the clamping block 8 to rotate freely during use, ensuring the stable use of the equipment.
[0031] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0032] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A positioning and locking cylinder, comprising a worktable (1), characterized in that, A strip plate (2) is fixedly fitted at the top center of the workbench (1). A groove is provided at the top of the strip plate (2). Rectangular holes (201) are provided at the bottom of both sides of the groove. Sliding blocks (5) are slidably connected to both ends of the groove. A stop strip (202) is fixedly connected to both sides of the top of the strip plate (2) in the groove. A sliding groove is provided at the top of each sliding block (5). Multiple insertion holes (501) are provided at equal intervals on both sides of each sliding groove. A mounting frame (6) is slidably connected in each sliding groove. A locking mechanism is provided inside each mounting frame (6). The locking mechanism includes a component slidably fitted in the mounting frame. (6) Insert rods (7) on both sides inside, square holes adapted to the insert rods (7) are opened at both ends of the mounting frame (6), and the insert rods (7) are adapted to the insertion holes (501). A vertical plate (701) is fixedly connected to the side of the two insert rods (7) that are close to each other. A strip hole (702) is opened at the top of the two vertical plates (701). The same first spring (703) is fixedly connected between the two vertical plates (701). A fixing plate (704) is fixedly connected to the top of the mounting frame (6), and an arc hole (705) is opened on both sides of the fixing plate (704). A slot hole (706) is opened on one side of the middle part of the fixing plate (704).
2. The positioning and locking cylinder according to claim 1, characterized in that, Both of the two fixing plates (704) have a clamping block (8) at the top center, and a rubber pad (801) is fixedly connected to the side of the two clamping blocks (8) that are close to each other.
3. The positioning and locking cylinder according to claim 2, characterized in that, Both ends of the bottom of the two clamping blocks (8) are fixedly connected with guide rods (802), and the bottom of each guide rod (802) is slidably connected in the strip hole (702) through the adjacent arc-shaped hole (705).
4. The positioning and locking cylinder according to claim 3, characterized in that, Each of the two clamping blocks (8) is provided with a limiting mechanism at the bottom of the side away from each other. The limiting mechanism includes a fixed block (9) fixedly connected to the bottom side of the clamping block (8). A limiting rod (901) is slidably sleeved on the fixed block (9). A round hole adapted to the limiting rod (901) is opened in the middle of the fixed block (9). A fixing ring (902) is fixedly sleeved on the bottom of the fixed block (9). A second spring (903) is sleeved between the fixed block (9) and the limiting rod (901). A pull rod is fixedly connected to the top of the limiting rod (901), and the bottom of the limiting rod (901) is adapted to the slot (706).
5. The positioning and locking cylinder according to claim 1, characterized in that, Both sliding blocks (5) are fixedly connected to vertical blocks (3) at their bottoms. Each vertical block (3) slides through adjacent rectangular holes (201). One of the vertical blocks (3) is fixedly connected to a cylinder (301) at its bottom, and the other end of the cylinder (301) is fixedly connected to the bottom of the other vertical block (3).
6. The positioning and locking cylinder according to claim 1, characterized in that, The bottom center of the strip plate (2) is rotatably connected to a rotating rod (4), and both ends of the rotating rod (4) are rotatably connected to connecting rods (401). The other end of each connecting rod (401) is rotatably connected to one side of the adjacent vertical block (3).