Stable guiding device for telescopic rod of air cylinder

Abstract

The utility model discloses an air cylinder telescopic rod stabilizing and guiding device, which relates to the technical field of air cylinder telescopic rod auxiliary devices and comprises an air cylinder, the telescopic end of the air cylinder is connected with a plate, the top of the plate is connected with guiding rods on two sides of the air cylinder, and the outer walls of the guiding rods are slidably sleeved with positioning sleeves fixed with external metal pieces. A reinforcing part connected to the top of the plate is arranged at the position, close to the bottom, of the outer wall of each guide rod. The reinforcing assemblies and the plates are matched with each other, so that the multiple groups of second reinforcing plates expand outwards in a fan shape, at the moment, the second reinforcing plates linearly move along the grooves formed by the fan-shaped strip groups, meanwhile, the two sides of the second reinforcing plates are reinforced and protected, the force bearing area between the second reinforcing plates and the second reinforcing plates is enlarged, and the service life of the second reinforcing plates is prolonged. Therefore, the problem of periodical tension and compression stress concentration when the air cylinder drives the plate to move is solved, and the situation that the guide rod and the plate are fractured and separated is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of cylinder telescopic rod auxiliary devices, specifically a cylinder telescopic rod stabilizing guide device. Background Technology

[0002] With the development of technology, all existing automatic or semi-automatic devices rely on cylinders. To achieve the goal of automating the production of some products, guide rods are added to both sides of the cylinder extension rod to improve production efficiency. However, under high-speed extension or ultra-long stroke conditions, the cylinder extension rod is susceptible to lateral offset force and inertial impact, which can cause deviation of the movement trajectory, accelerated wear of seals, and even jamming or breakage. The lateral offset force and inertial impact generated will be transmitted to the guide rod, and the metal part connected to the bottom of the guide rod will bear the force from multiple directions, causing the guide rod and the bottom metal part to undergo slight deformation along the connection.

[0003] Because the periodic tensile and compressive stress generated by the rapid up-and-down movement of the cylinder telescopic rod is concentrated at the weld, when the stress value of the plate connected to the guide rod (or the action of pushing the plate, pushing the product to move, or the metal swinging) exceeds the material fatigue limit, microcracks gradually form and propagate to fracture. Therefore, a cylinder telescopic rod stabilizing guide device is proposed. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a cylinder telescopic rod stabilizing guide device to solve the technical problems mentioned in the background.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a cylinder telescopic rod stabilizing guide device, comprising a cylinder, a plate connected to the telescopic end of the cylinder, guide rods connected to the top of the plate on both sides of the cylinder, a positioning sleeve fixed to an external metal part slidably sleeved on the outer wall of the guide rod, and a reinforcing member connected to the top of the plate at the position near the bottom of the outer wall of each group of guide rods.

[0006] The reinforcing component includes a base sleeve fixedly wrapped around the outside of the guide rod. Multiple sets of first reinforcing plates are evenly distributed on the outer wall of the base sleeve. Each set of first reinforcing plates has a relief groove extending to the outside of the inclined surface of the first reinforcing plate. A second reinforcing plate is provided at the bottom of each set of first reinforcing plates. An inner liner plate is fixed to the outer wall of the second reinforcing plate and slides into the relief groove. Three sets of ball grooves are provided on the front and back of the inner liner plate. Balls that are rolled and connected inside the ball grooves are installed at the corresponding positions of the relief grooves and the ball grooves. Fan-shaped strips fixed to the top of the plate are installed on both sides of each set of second reinforcing plates.

[0007] As a preferred technical solution, a gap exists between the bottom of the guide rod and the upper surface of the plate. The telescopic end of the cylinder is fixed with a shaft extending into the interior of the plate. A stroke groove is provided at the contact position between the plate and the shaft. The inner wall of the stroke groove and the bottom of the shaft are reserved with a gap equal to the gap size.

[0008] As a preferred technical solution, a reinforcing ring is provided at the center of the second reinforcing plate and fixed to the upper surface of the plate, and the inner diameter of the reinforcing ring is larger than the outer diameter of the guide rod.

[0009] As a preferred technical solution, each group of fan-shaped strips has a constraint groove on one side of the second reinforcing plate, and a constraint strip fixed to the outer wall of the second reinforcing plate is slidably disposed in the constraint groove.

[0010] As a preferred technical solution, each set of the second reinforcing plate and the first reinforcing plate is rotatably connected to a connecting arm on the same side, and the ends of the two sets of connecting arms are slidably connected to each other by dovetail blocks.

[0011] As a preferred technical solution, the multiple sets of the fan-shaped strips are arranged in a ring array, and the ends of each set of the fan-shaped strips are fixed to the curved outer wall of the reinforcing ring.

[0012] In summary, the present invention has the following main advantages:

[0013] This utility model utilizes the cooperation between the reinforcing components and the plates to make the multiple sets of second reinforcing plates expand outward in a fan shape. At this time, the second reinforcing plates will move in a straight line along the groove formed by the fan-shaped strips, and at the same time, it will also provide a reinforcing and protective effect on both sides of the second reinforcing plates. The area between the two bearing the force is increased, thereby dealing with the problem of periodic tensile and compressive stress concentration when the cylinder drives the plate to move, thus effectively avoiding the situation where the guide rod breaks and separates from the plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural view of the cylinder and guide rod of this utility model;

[0015] Figure 2 This is an unfolded structural diagram of the reinforcing component of this utility model;

[0016] Figure 3 This is a schematic diagram of the first and second reinforcing plates of this utility model;

[0017] Figure 4 This is a schematic diagram of the reinforcing ring and fan-shaped strip structure of this utility model;

[0018] Figure 5 This is a front sectional view of the cylinder and plate of this utility model.

[0019] In the diagram: 100, cylinder; 110, guide rod; 111, positioning sleeve; 120, reinforcing component; 121, base sleeve; 122, first reinforcing plate; 123, second reinforcing plate; 124, constraint strip; 125, clearance groove; 126, ball; 127, ball groove; 128, inner liner plate; 129, connecting arm; 130, plate; 131, stroke groove; 140, reinforcing ring; 141, fan-shaped strip group; 142, constraint groove; 150, shaft. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] A cylinder telescopic rod stabilizing guide device, such as Figures 1 to 5 As shown, it includes a cylinder 100, a plate 130 connected to the telescopic end of the cylinder 100, and guide rods 110 connected to the top of the plate 130 on both sides of the cylinder 100. The outer wall of the guide rod 110 is slidably sleeved with a positioning sleeve 111 that is fixed to an external metal part. Each set of guide rods 110 has a reinforcing member 120 connected to the top of the plate 130 near the bottom of the outer wall.

[0023] The reinforcing component 120 includes a base sleeve 121 fixedly wrapped around the outside of the guide rod 110. Multiple sets of first reinforcing plates 122 are evenly distributed on the outer wall of the base sleeve 121. Each set of first reinforcing plates 122 has a relief groove 125 extending to the outside of the inclined surface of the first reinforcing plate 122. Each set of first reinforcing plates 122 has a second reinforcing plate 123 at the bottom. The outer wall of the second reinforcing plate 123 is fixed with an inner liner 128 that slides into the relief groove 125. The front and back of the inner liner 128 have three sets of ball grooves 127. The inner wall of the relief groove 125 is equipped with balls 126 that are rolled and connected inside the ball groove 127 at the corresponding positions of each set of ball grooves 127. Each set of second reinforcing plates 123 has a constraint groove 142 fixed to the top of the plate 130 on both sides.

[0024] There is a gap between the bottom of the guide rod 110 and the upper surface of the plate 130. The telescopic end of the cylinder 100 is fixed with a shaft 150 extending into the plate 130. A stroke groove 131 is provided at the contact position between the plate 130 and the shaft 150. The inner wall of the stroke groove 131 and the bottom of the shaft 150 are reserved with a gap of three centimeters equal to the gap size.

[0025] Each set of constraint grooves 142 has a fan-shaped strip group 141 on one side of the second reinforcing plate 123, and a constraint strip 124 fixed to the outer wall of the second reinforcing plate 123 is slidably arranged in the fan-shaped strip group 141.

[0026] The telescopic end of the cylinder 100 drives the plate 130 to move up and down. Its two sets of guide rods 110 move up and down synchronously, and under the constraint of the positioning sleeve 111, they move straight up and down along a vertical trajectory. The periodic tensile and compressive stress generated by the rapid up and down movement of the cylinder 100 is concentrated at the connection between the guide rod 110 and the plate 130, which will cause the guide rod 110 and the plate 130 to break apart from the connection. The first reinforcing plate 122 in the reinforcing component 120 can apply a thrust to the second reinforcing plate 123, causing multiple second reinforcing plates 123 to slide outward radially, thereby dissipating and dispersing the periodic tensile and compressive stress.

[0027] When plate 130 comes into contact with the object being pushed or squeezed, due to the three-centimeter distance between guide rod 110 and cylinder 100 and plate 130, plate 130 will move towards the bottom of guide rod 110. At this time, inner liner plate 128 will enter relief groove 125, and with the assistance of ball bearings 126 and ball bearing groove 127, inner liner plate 128 will rise linearly into relief groove, while simultaneously generating an outward pushing force on the second reinforcing plate 123 below, causing multiple sets of second reinforcing plates 123 to expand outward in a fan shape. At this time, the second reinforcing plates 123 will move along the groove formed by the fan-shaped strip group 141. The linear movement also strengthens the protection of both sides of the second reinforcing plate 123 until the bottom of the guide rod 110 contacts the top of the plate 130, increasing the area between them to bear the force. This addresses the problem of periodic tensile and compressive stress concentration when the cylinder 100 moves the plate, effectively preventing the guide rod 110 from breaking and separating from the plate 130. When the plate 130 returns to its original position as the cylinder 100 rises, it recovers by its own weight and that of the second reinforcing plate 123, allowing the guide rod 110 to be protected against breakage during the next operation.

[0028] Please refer to this carefully. Figure 1 , Figure 2 and Figure 4 The second reinforcing plate 123 has a reinforcing ring 140 fixed to the upper surface of the plate 130 at its center position, and the inner diameter of the reinforcing ring 140 is larger than the outer diameter of the guide rod 110.

[0029] The bottom of the guide rod 110 can be made to contact the plate 130, and the second reinforcing plate 123 can be made to expand outward along a predetermined trajectory, thereby increasing the force-bearing area of ​​the guide rod 110 and the plate 130.

[0030] Multiple sets of fan-shaped strips 141 are arranged in a ring array, and the end of each set of fan-shaped strips 141 is fixed to the curved outer wall of the reinforcing ring 140.

[0031] The reinforcing ring 140 enables multiple sets of fan-shaped strips 141 to form an integrated structure, making manual welding and installation convenient and efficient.

[0032] Please refer to this carefully. Figure 2 and Figure 3 Each set of second reinforcing plates 123 and first reinforcing plates 122 is rotatably connected to a connecting arm 129 on the same side, and the ends of the two sets of connecting arms 129 are slidably connected to each other by dovetail blocks.

[0033] The connecting arm 129 constrains the corresponding first reinforcing plate 122 and second reinforcing plate 123, preventing them from bending and deforming towards the side wall, thus providing better protection for the guide rod 110.

[0034] In use, when plate 130 comes into contact with an object being pushed or squeezed, due to the three-centimeter distance between guide rod 110 and cylinder 100 and plate 130, plate 130 will move towards the bottom of guide rod 110. At this time, inner liner plate 128 will enter clearance groove 125, and with the assistance of ball bearings 126 and ball bearing groove 127, inner liner plate 128 will rise linearly into clearance groove, simultaneously generating an outward pushing force on the lower second reinforcing plate 123, causing multiple sets of second reinforcing plates 123 to expand outward in a fan shape. At this time, the second reinforcing plates 123 will move linearly along the groove formed by the fan-shaped strip group 141, and at the same time, the second reinforcing plates 123 will also expand outward in a fan shape. The two sides of plate 123 provide enhanced protection until the bottom of guide rod 110 contacts the top of plate 130, increasing the area of ​​force-bearing between them. This addresses the problem of periodic tensile and compressive stress concentration when cylinder 100 moves the plate, effectively preventing the guide rod 110 from breaking and separating from plate 130. When plate 130 is raised and restored by cylinder 100, it recovers by its own weight and that of the second reinforcing plate 123, allowing the guide rod 110 to be protected against breakage during the next operation. Any parts not mentioned in this device are the same as or can be implemented using existing technology.

[0035] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A cylinder telescopic rod stabilizing and guiding device, comprising a cylinder (100), characterized in that: The telescopic end of the cylinder (100) is connected to a plate (130). The top of the plate (130) is connected to guide rods (110) on both sides of the cylinder (100). The outer wall of the guide rod (110) is slidably sleeved with a positioning sleeve (111) fixed to an external metal part. Each set of guide rods (110) has a reinforcing member (120) connected to the top of the plate (130) near the bottom of its outer wall. The reinforcing component (120) includes a base sleeve (121) fixedly wrapped around the outside of the guide rod (110). Multiple sets of first reinforcing plates (122) are equidistantly distributed on the outer wall of the base sleeve (121) to form flue gas bearings. Each set of first reinforcing plates (122) has a relief groove (125) extending to the outer side of the inclined surface of the first reinforcing plate (122). A second reinforcing plate (123) is provided at the bottom of each set of first reinforcing plates (122). The outer wall is fixed with an inner liner plate (128) that slides into the relief groove (125). The inner liner plate (128) has three sets of ball grooves (127) on its front and back sides. The inner wall of the relief groove (125) is equipped with balls (126) that are rolled and connected inside the ball groove (127) at the corresponding positions of each set of ball grooves (127). Each side of the second reinforcing plate (123) is equipped with a fan-shaped strip group (141) fixed to the top of the plate (130).

2. The cylinder telescopic rod stabilizing guide device according to claim 1, characterized in that: The bottom of the guide rod (110) has a gap with the upper surface of the plate (130). The telescopic end of the cylinder (100) is fixed with a shaft (150) extending into the plate (130). A stroke groove (131) is provided at the contact position between the plate (130) and the shaft (150). The inner wall of the stroke groove (131) and the bottom of the shaft (150) are reserved with a gap equal to the gap size.

3. The cylinder telescopic rod stabilizing guide device according to claim 1, characterized in that: The second reinforcing plate (123) has a reinforcing ring (140) fixed to the upper surface of the plate (130) at its center, and the inner diameter of the reinforcing ring (140) is larger than the outer diameter of the guide rod (110).

4. The cylinder telescopic rod stabilizing guide device according to claim 1, characterized in that: Each group of fan-shaped strips (141) has a constraint groove (142) on one side of the second reinforcing plate (123), and a constraint strip (124) fixed to the outer wall of the second reinforcing plate (123) is slidably disposed in the constraint groove (142).

5. The cylinder telescopic rod stabilizing guide device according to claim 1, characterized in that: Each set of the second reinforcing plate (123) and the first reinforcing plate (122) is rotatably connected to a connecting arm (129) on the same side, and the ends of the two sets of connecting arms (129) are slidably connected to each other by dovetail blocks.

6. The cylinder telescopic rod stabilizing guide device according to claim 1, characterized in that: Multiple sets of the fan-shaped strips (141) are arranged in a ring array, and the end of each set of the fan-shaped strips (141) is fixed to the curved outer wall of the reinforcing ring (140).

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