Assembling and positioning mechanism for hinged shaft on oil cylinder

Abstract

The utility model relates to the technical field of oil cylinder assembling, in particular to an oil cylinder upper hinged shaft assembling and positioning mechanism which comprises a base for bearing an oil cylinder and vertically placing the oil cylinder, a positioning assembly I for fixing the oil cylinder at the central position of the base, and a positioning assembly II for keeping an upper hinged shaft and the oil cylinder to be coaxial, the second positioning assembly comprises two first sliding units, two telescopic rods are symmetrically arranged on the two first sliding units, a side plate is arranged between the upper ends of the two telescopic rods, a second sliding unit is arranged on the side plate, a positioning pin shaft is arranged on the second sliding unit and is in a conical shape, and the second sliding unit is provided with a first positioning pin shaft and a second positioning pin shaft. And a lifting plate for lifting the upper hinged shaft is further arranged on the side plate. The center of the oil cylinder is positioned through the first positioning assembly, and meanwhile the center of the upper hinged shaft arranged on the surface of the oil cylinder in a sleeving mode is positioned through the second positioning assembly, so that the upper hinged shaft and the oil cylinder are kept to be located at the same center position, and the installation precision of the oil cylinder and the upper hinged shaft is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinder assembly, in particular to an assembly and positioning mechanism for a hinge shaft on an oil cylinder. Background Art

[0002] The upper hinge shaft in the hydraulic cylinder is generally installed on the upper part of the cylinder and is used to connect the cylinder and other equipment. When installing the upper hinge shaft, the upper hinge shaft needs to be put on the cylinder body first. Since there is a certain gap between the inner wall of the upper hinge shaft and the outer wall of the cylinder body, the center of the upper hinge shaft cannot be consistent with the center of the cylinder body, resulting in the upper hinge shaft being unable to be used normally after the installation is completed. Therefore, a cylinder upper hinge shaft assembly and positioning mechanism is urgently needed. Utility Model Content

[0003] To solve the above technical problems, the utility model provides the following technical solutions: a cylinder upper hinge shaft assembly positioning mechanism, a base supporting the vertical placement of the cylinder, a positioning component one for fixing the cylinder at the center position of the base, a positioning component two for keeping the upper hinge shaft and the cylinder at the same axis, the positioning component two comprising two sliding units one, two sliding units one are symmetrically provided with two telescopic rods, a side plate is provided between the upper ends of the two telescopic rods, a sliding unit two is provided on the side plate, a positioning pin is provided on the sliding unit two, the positioning pin is conical, and a lifting plate for lifting the upper hinge shaft is also provided on the side plate.

[0004] Preferably, the sliding unit 1 includes a sliding rail fixedly arranged on a base, the sliding rail is symmetrically provided with two rectangular sliding grooves, a bidirectional screw is rotatably arranged between the two sliding grooves, a sliding block 1 is slidably arranged in both sliding grooves, the sliding block 1 is threadedly connected to one end of the bidirectional screw, and the telescopic rod is fixed on the sliding block 1.

[0005] Preferably, the telescopic rod consists of a connecting rod 1 and a connecting rod 2, the bottom end of the connecting rod 1 is fixedly connected to the slider 1, the bottom end of the connecting rod 2 is threadedly connected to the top end of the connecting rod 1, and the top end of the connecting rod 2 is rotatably connected to the bottom of the side panel.

[0006] Preferably, the sliding unit 2 includes a one-way screw, a rectangular slider 2 is opened on the surface of the side plate, the one-way screw is rotatably set in the sliding hole, and the slider 2 is threadedly set on the one-way screw, and one end of the positioning pin shaft is fixed on one side of the slider 2.

[0007] Preferably, the positioning component 1 includes a column fixedly set on the base, the column is provided with two positioning ends, a cavity is opened inside the positioning end, and four abutment blocks distributed in a ring are movably provided on the outer wall of the positioning end, a spring is provided on the upper part of one end of the abutment block, one end of the spring abuts against the inner wall of the cavity, and the internal thread of the column is provided with a push rod for pushing the abutment block, and two abutment balls are provided on the surface of the push rod.

[0008] Preferably, one side of the four abutment blocks close to each other is set as an arc surface, and the abutment balls are movably abutted against the arc surface on one side of the four abutment blocks.

[0009] By means of the above technical solution, the utility model provides a hinge shaft assembly positioning mechanism on a cylinder, which has at least the following beneficial effects:

[0010] 1. This kind of hydraulic cylinder upper hinge shaft assembly positioning mechanism positions the center of the hydraulic cylinder through a pair of positioning components, and simultaneously positions the center of the upper hinge shaft sleeved on the surface of the hydraulic cylinder through a pair of positioning components, thereby keeping the upper hinge shaft and the hydraulic cylinder in the same center position, ensuring the accuracy of the hydraulic cylinder and the upper hinge shaft during installation.

[0011] 2. This kind of cylinder upper hinge shaft assembly positioning mechanism, the positioning component 1 relies on the movable abutment of the abutment block to adapt to the positioning of cylinders with different diameters, and at the same time the sliding unit 1 and the sliding unit in the positioning component 2 can adjust the position of the upper positioning pin shaft and the lifting plate, so that the entire positioning mechanism is suitable for the assembly and installation of different cylinders and upper hinge shafts, and has better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0013] In the attached picture:

[0014] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0017] In the figure: 1. base; 2. positioning component 1; 201. column; 202. positioning end; 203. abutment block; 204. spring; 205. push rod; 206. abutment ball; 3. positioning component 2; 301. sliding unit 1; 302. telescopic rod; 303. side plate; 304. positioning pin shaft; 305. lifting plate; 306. sliding unit 2; 4. oil cylinder; 5. upper hinge shaft. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Combination Figure 1-Figure 3 As shown, the utility model provides: a cylinder upper hinge shaft assembly positioning mechanism, a base 1 carrying a vertically placed cylinder 4, a positioning component 1 2 for fixing the cylinder 4 at the center of the base 1, a positioning component 2 3 for keeping the upper hinge shaft 5 and the cylinder 4 at the same axis, the positioning component 2 3 includes two sliding units 1 301, two telescopic rods 302 are symmetrically installed on the two sliding units 1 301, a side plate 303 is installed between the upper ends of the two telescopic rods 302, and the side plate 303 is installed between the upper ends of the two telescopic rods 302. 3 is installed with a sliding unit 2 306, and a positioning pin 304 is installed on the sliding unit 2 306. The positioning pin 304 is conical, and a lifting plate 305 for lifting the upper hinge shaft 5 is also installed on the side plate 303. The center of the oil cylinder 4 is positioned by the positioning component 1 2, and the upper hinge shaft 5 sleeved on the surface of the oil cylinder 4 is positioned by the positioning component 2 3, so as to keep the upper hinge shaft 5 and the oil cylinder 4 in the same center position, and ensure the accuracy of the oil cylinder 4 and the upper hinge shaft 5 during installation;

[0020] The sliding unit 1 301 includes a slide rail fixedly mounted on the base 1, and the slide rail is symmetrically provided with two rectangular slide grooves, a bidirectional screw is rotatably mounted between the two slide grooves, and a slider 1 is slidably mounted in both slide grooves, the slider 1 is threadedly connected to one end of the bidirectional screw, and the telescopic rod 302 is fixed on the slider 1, and the positioning pins 304 on the two side plates 303 are driven by the two sliding units to approach the upper hinge shaft 5, and the upper hinge shaft 5 is lifted and supported, and the upper hinge shaft 5 is positioned concentrically with the oil cylinder 4;

[0021] The telescopic rod 302 is composed of a connecting rod 1 and a connecting rod 2. The bottom end of the connecting rod 1 is fixedly connected to the slider 1, the bottom end of the connecting rod 2 is threadedly connected to the top end of the connecting rod 1, and the top end of the connecting rod 2 is rotatably connected to the bottom of the side plate 303, so as to adjust the relative position of the lifting plate 305 according to the position of the upper hinge shaft 5 assembled on the upper end of the oil cylinder 4.

[0022] The sliding unit 2 306 includes a one-way screw, and a rectangular sliding block 2 is provided on the surface of the side plate 303. The one-way screw is rotatably installed in the sliding hole, and the sliding block 2 is threadedly installed on the one-way screw. One end of the positioning pin 304 is fixed on one side of the sliding block 2. The sliding unit 2 306 mainly fine-tunes the position of the positioning pin 304, so that the positioning pin 304 can be inserted into the reserved holes at both ends of the upper hinge shaft 5.

[0023] The positioning component 2 includes a column 201 fixedly mounted on the base 1, two positioning ends 202 are mounted on the column 201, a cavity is provided inside the positioning end 202, and four abutment blocks 203 distributed in an annular shape are movably mounted on the outer wall of the positioning end 202, a spring 204 is mounted on the upper part of one end of the abutment block 203, one end of the spring 204 abuts against the inner wall of the cavity, and a push rod 205 for pushing the abutment block 203 is mounted on the internal thread of the column 201, two abutment balls 206 are mounted on the surface of the push rod 205, and the four abutment blocks 203 at the same position are synchronously driven by the push rod 205 to approach the inner wall of the oil cylinder 4, so as to fix the inner wall of the oil cylinder 4, thereby fixing the oil cylinder 4 as a whole at the center position of the base 1;

[0024] The sides of the four abutment blocks 203 close to each other are installed as arc surfaces, and the abutment balls 206 movably abut against the arc surfaces on one side of the four abutment blocks 203, which can facilitate the push rod 205 to push the abutment blocks 203 to move toward the inner wall of the cylinder 4.

[0025] The specific working principle of this mechanism is as follows: first, the oil cylinder 4 is sleeved on the surface of the column 201 and placed vertically in the placement groove on the surface of the base 1. Then, the handle at the upper end of the column 201 is rotated to drive the push rod 205 to rotate, so that the push rod 205 moves downward, and the abutment ball 206 on the push rod 205 will abut against the arc surface on the side of the abutment block 203, thereby pushing the abutment block 203 to move outward and abut against the inner wall of the oil cylinder 4, so that the oil cylinder 4 is fixed in the center position of the base 1. Then, the upper hinge shaft 5 is sleeved on the upper end surface of the oil cylinder 4, and the two ends are lifted by the lifting plate 305. Then, the one-way screw is rotated to adjust the height of the positioning pin shaft 304, so that the height of the positioning pin shaft 304 is aligned with the reserved hole grooves at both ends of the upper hinge shaft 5. Then, the two bidirectional screws are rotated synchronously, so that the bidirectional screws on both sides are synchronously close to the two ends of the upper hinge shaft 5, and the positioning pin shafts 304 on both sides are driven to be close to the two ends of the upper hinge shaft 5, so that the upper hinge shaft 5 and the oil cylinder 4 are concentrically positioned, which is convenient for subsequent assembly.

[0026] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hinge shaft assembly and positioning mechanism on a cylinder, characterized in that: A base (1) supporting a vertically placed oil cylinder (4), a positioning component (2) for fixing the oil cylinder (4) at the center of the base (1), and a positioning component (3) for keeping the upper hinge shaft (5) and the oil cylinder (4) on the same axis; The positioning component 2 (3) comprises two sliding units 1 (301), two telescopic rods (302) are symmetrically arranged on the two sliding units 1 (301), a side plate (303) is arranged between the upper ends of the two telescopic rods (302), a sliding unit 2 (306) is arranged on the side plate (303), a positioning pin shaft (304) is arranged on the sliding unit 2 (306), the positioning pin shaft (304) is conical, and a lifting plate (305) for lifting the upper hinge shaft (5) is also arranged on the side plate (303).

2. The assembly and positioning mechanism for the hinge shaft on the oil cylinder according to claim 1, characterized in that: The sliding unit 1 (301) comprises a sliding rail fixedly arranged on a base (1), the sliding rail being symmetrically provided with two rectangular sliding grooves, a bidirectional screw being rotatably arranged between the two sliding grooves, a sliding block 1 being slidably arranged in each of the two sliding grooves, the sliding block 1 being threadedly connected to one end of the bidirectional screw, and the telescopic rod (302) being fixedly arranged on the sliding block 1.

3. The assembly and positioning mechanism for the hinge shaft on the oil cylinder according to claim 2, characterized in that: The telescopic rod (302) consists of a connecting rod 1 and a connecting rod 2, wherein the bottom end of the connecting rod 1 is fixedly connected to the sliding block 1, the bottom end of the connecting rod 2 is threadedly connected to the top end of the connecting rod 1, and the top end of the connecting rod 2 is rotatably connected to the bottom of the side plate (303).

4. The assembly and positioning mechanism for the hinge shaft on the oil cylinder according to claim 1, characterized in that: The sliding unit 2 (306) includes a one-way screw, and a rectangular sliding block 2 is opened on the surface of the side plate (303). The one-way screw is rotatably set in the sliding hole, and the sliding block 2 is threadedly set on the one-way screw. One end of the positioning pin shaft (304) is fixed on one side of the sliding block 2.

5. The assembly and positioning mechanism for the hinge shaft on the oil cylinder according to claim 1, characterized in that: The positioning component 1 (2) comprises a column (201) fixedly arranged on a base (1), the column (201) being provided with two positioning ends (202), the interior of the positioning end (202) being provided with a cavity, and the outer wall of the positioning end (202) being provided with four abutment blocks (203) distributed in an annular shape, a spring (204) being provided at the upper part of one end of the abutment block (203), one end of the spring (204) being in abutment with the inner wall of the cavity, and the internal thread of the column (201) being provided with a push rod (205) for pushing the abutment block (203), and the surface of the push rod (205) being provided with two abutment balls (206).

6. The assembly and positioning mechanism for the hinge shaft on the oil cylinder according to claim 5, characterized in that: One side of the four abutment blocks (203) close to each other is set as an arc surface, and the abutment ball (206) movably abuts against the arc surface on one side of the four abutment blocks (203).

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