Spring cylinder assembly tool

Abstract

The utility model discloses a spring cylinder assembly tool, and relates to the field of spring cylinder assembly. The spring cylinder comprises a cylinder body, a piston and a piston rod are arranged in the cylinder body, a spring set is arranged between the piston rod and the cylinder body, and the spring set is compressed and fixed between the piston and a sealing cover through the sealing cover. The tool comprises a hydraulic cylinder supported by a gantry support, the hydraulic cylinder is connected with a hydraulic station through a hydraulic oil pipe, the gantry support is fixedly connected with a fixing bottom plate arranged on the ground, and a supporting pad for supporting and fixing a cylinder body is arranged at the joint of the gantry support and the fixing bottom plate; a hydraulic rod of the hydraulic cylinder extends downwards to the inner side of the gantry support, and a hollow sleeve is arranged at the front end of the hydraulic rod. Manpower can be saved, and pre-tightening installation of the spring cylinder can be conveniently and quickly achieved.

Description

Technical Field

[0001] The utility model relates to the field of spring cylinder assembly, in particular to a spring cylinder assembly tool. Background Art

[0002] A spring cylinder, also known as a gas spring cylinder or gas spring, is a device that uses compressed air to generate force. It usually consists of a sealed cylinder, a piston, a piston rod, and an internal spring. The working principle of a spring cylinder is to apply force to the piston through compressed air, thereby pushing the piston rod to extend outward or retract inward. Spring cylinders are widely used in industrial automation, machinery manufacturing, medical equipment and other fields for various functions such as support, cushioning, and positioning.

[0003] When installing a spring cylinder, in order to ensure its normal operation, it is usually necessary to pre-tighten the internal spring. A problem that often occurs when installing a spring cylinder is that the pre-tightening force of the spring is too large, making it very difficult to tighten manually. Secondly, the stiffness of the spring is also an important factor. Stiffness refers to the force generated by the spring under a unit length change, which is related to the material, shape and size of the spring. Furthermore, the sealing performance of the spring cylinder is also a factor that affects the difficulty of installation. In order to ensure air tightness, the cylinder body and piston of the spring cylinder need to fit tightly. When the spring pre-tightening force is too large, the friction between the piston and the cylinder body will also increase, which requires greater force to overcome the friction and achieve the pressing of the piston.

[0004] In order to achieve better results, the utility model with publication number CN214418709U discloses a guide press-fitting aid, which includes a first cylindrical part with an outer diameter transitionally matched with the inner diameter of the guide ring, a second cylindrical part arranged above the first cylindrical part with an outer diameter greater than the inner diameter of the guide ring and smaller than the inner diameter of the nitrogen spring cylinder guide sleeve, and a third cylindrical part arranged above the second cylindrical part with an outer diameter greater than the inner diameter of the nitrogen spring cylinder guide sleeve, and a section of annular groove is arranged on the circumferential wall of the first cylindrical part close to the second cylindrical part. A guide press-fitting aid that makes press-fitting simple and easy.

[0005] However, the above device still cannot solve the difficulty of manual compression during installation of the spring cylinder, and cannot overcome the influence of many factors such as the large preload force of the spring, the high stiffness of the spring, the sealing requirements between the cylinder body and the piston, and the operating skills. Utility Model Content

[0006] In order to solve the problems existing in the prior art, the purpose of the utility model is to disclose a spring cylinder assembly work, which can save manpower and realize the pre-tightening installation of the spring cylinder conveniently and quickly.

[0007] To achieve the above-mentioned effect, the present application discloses a spring cylinder assembly tool, the spring cylinder includes a cylinder body, a piston and a piston rod are arranged in the cylinder body, a spring group is arranged between the piston rod and the cylinder body, and the spring group is compressed and fixed between the piston and the cover by a cover; the tool includes: a hydraulic cylinder supported by a gantry bracket, the hydraulic cylinder is connected to a hydraulic station through a hydraulic oil pipe, the gantry bracket is fixedly connected to a fixed base plate arranged on the ground, and a support pad that supports and fixes the cylinder body is arranged at the connection between the gantry bracket and the fixed base plate; the hydraulic rod of the hydraulic cylinder extends downward to the inner side of the gantry bracket, and a hollow sleeve is arranged at the front end of the hydraulic rod.

[0008] Furthermore, the hydraulic oil pipe includes an oil inlet pipe and an oil outlet pipe.

[0009] Furthermore, the spring group includes a first spring and a second spring.

[0010] Further, the diameter of the first spring is greater than the diameter of the second spring, and the first spring and the second spring are different from each other and are selected from a left-handed spring and a right-handed spring.

[0011] Furthermore, the length of the hollow sleeve is greater than the distance that the piston rod extends beyond the cylinder body.

[0012] Furthermore, a fixing hole is provided at the bottom of the cylinder body, and a circular hole is provided at the top of the piston rod.

[0013] Furthermore, the cover and the cylinder body are connected by bolts.

[0014] Furthermore, the gantry bracket includes a crossbeam and vertical poles arranged on both sides of the crossbeam, and the support pad includes a first pad block and a second pad block, and the first pad block and the second pad block are respectively arranged on the inner side of the bottom of the vertical poles on both sides of the crossbeam.

[0015] The beneficial effects of the utility model include:

[0016] The innovative spring cylinder assembly tooling significantly improves the assembly efficiency and safety of the spring cylinder. In the traditional assembly process, the spring group of the spring cylinder needs to withstand a large preload, which makes it extremely difficult to manually compress the spring, which is not only labor-intensive but also inefficient. This solution uses a hydraulic station to drive the hydraulic cylinder and transmits power through a hydraulic oil pipe, so that the hydraulic rod of the hydraulic cylinder can apply pressure downward to effectively compress the spring group, thereby simplifying the installation process. The design of the hollow sleeve allows the hydraulic rod to act directly on the piston, ensuring uniform compression and precise positioning of the spring.

[0017] In addition, the fixed connection between the gantry bracket and the fixed base plate of the tooling provides a stable support platform, and the support pad ensures the stability and safety of the spring cylinder during the assembly process. Through this design, operators can easily assemble the spring cylinder without having to bear the reaction force of the spring, greatly reducing labor intensity and operating risks. At the same time, the precise control of the hydraulic cylinder also ensures the consistency and reliability of the spring preload, improving the assembly quality of the product.

[0018] In summary, this technical solution not only simplifies the assembly process of the spring cylinder and reduces the manpower requirements, but also improves the assembly accuracy and efficiency, and has significant technical effects. Through this automated and mechanized assembly method, enterprises can greatly improve production efficiency and reduce production costs, while ensuring the safety of operators, and has important industrial application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 The structure of the utility model tool is shown in FIG. Figure 1 .

[0021] Figure 2 The structure of the utility model tool is shown in FIG. Figure 2 .

[0022] Figure 3 It is a front view of the utility model.

[0023] Figure 4 For this utility model Figure 3 Section view at position AA.

[0024] Figure 5 It is a structural schematic diagram of the spring cylinder of the utility model.

[0025] Among them: 1. gantry bracket, 2. hydraulic cylinder, 3. hydraulic oil pipe, 4. hydraulic station, 5. fixed base plate, 6. support pad, 7. hydraulic rod, 8. hollow sleeve, 11. crossbeam, 12. vertical rod, 61. first cushion block, 62. second cushion block, 100. spring cylinder, 110. cylinder body, 120. piston, 130. piston rod, 140. spring group, 141. first spring, 142. second spring, 150. cover, 160. fixing hole, 170. circular hole, 301. oil inlet pipe, 302. oil outlet pipe. DETAILED DESCRIPTION

[0026] The specific implementation methods of the utility model are further described in detail below in combination with the accompanying drawings. However, the following embodiments only list preferred embodiments, which only serve to explain and help understand the utility model and cannot be understood as limiting the utility model.

[0027] refer to Figure 1-5 , a spring cylinder assembly tool, the spring cylinder 100 includes a cylinder body 110, a piston 120 and a piston rod 130 are arranged in the cylinder body, a spring group 140 is arranged between the piston rod 130 and the cylinder body 110, and the spring group 140 is compressed and fixed between the piston 120 and the cover 150 by a cover 150; the tool includes: a hydraulic cylinder 2 supported by a gantry bracket 1, the hydraulic cylinder 2 is connected to a hydraulic station 4 through a hydraulic oil pipe 3, the gantry bracket is fixedly connected to a fixed base plate 5 arranged on the ground, and a support pad 6 that supports and fixes the cylinder body is arranged at the connection between the gantry bracket 1 and the fixed base plate 5; the hydraulic rod 7 of the hydraulic cylinder 2 extends downward to the inner side of the gantry bracket, and a hollow sleeve 8 is arranged at the front end of the hydraulic rod.

[0028] When the spring cylinder is installed, there is a spring preload. If the spring pressure is too large, it is difficult to tighten it manually. Use the hydraulic station to drive the hydraulic cylinder to tighten the spring, and then install the bolts to fix it. It is easy to operate, reduces workload, and improves work efficiency.

[0029] Preferably, the hydraulic oil pipe includes an oil inlet pipe 301 and an oil outlet pipe 302. The spring group 140 includes a first spring 141 and a second spring 142. The ring diameter of the first spring is larger than the ring diameter of the second spring, and the first spring and the second spring are mutually different and can be selected from a left-handed spring and a right-handed spring. The length of the hollow sleeve is greater than the distance that the piston rod 130 extends beyond the cylinder body 110. A fixing hole 160 is provided at the bottom of the cylinder body 110, and a circular hole 170 is provided at the top of the piston rod. The cover 150 and the cylinder body 110 are connected by bolts. The gantry bracket includes a crossbeam 11 and vertical poles 12 arranged on both sides of the crossbeam, and the support pad 6 includes a first pad 61 and a second pad 62, and the first pad and the second pad are respectively arranged on the inner side of the bottom of the vertical poles on both sides of the crossbeam.

[0030] The innovative spring cylinder assembly tooling significantly improves the assembly efficiency and safety of the spring cylinder. In the traditional assembly process, the spring group 140 of the spring cylinder needs to withstand a large preload, which makes it extremely difficult to manually compress the spring, which is not only labor-intensive but also inefficient. This solution uses the hydraulic station 4 to drive the hydraulic cylinder 2 and transmits power through the hydraulic oil pipe 3, so that the hydraulic rod 7 of the hydraulic cylinder can apply pressure downward, effectively compressing the spring group 140, thereby simplifying the installation process. The design of the hollow sleeve 8 allows the hydraulic rod 7 to act directly on the piston 120, ensuring uniform compression and precise positioning of the spring.

[0031] In addition, the fixed connection between the gantry support 1 and the fixed base plate 5 of the tooling provides a stable support platform, and the support pad 6 ensures the stability and safety of the spring cylinder 100 during the assembly process. Through this design, the operator can easily assemble the spring cylinder without having to bear the reaction force of the spring, which greatly reduces the labor intensity and operation risks. At the same time, the precise control of the hydraulic cylinder 2 also ensures the consistency and reliability of the spring preload, improving the assembly quality of the product.

[0032] In summary, this technical solution not only simplifies the assembly process of the spring cylinder and reduces the manpower requirements, but also improves the assembly accuracy and efficiency, and has significant technical effects. Through this automated and mechanized assembly method, enterprises can greatly improve production efficiency and reduce production costs, while ensuring the safety of operators, and has important industrial application value.

[0033] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A spring cylinder assembly tool, the spring cylinder (100) comprising a cylinder body (110), a piston (120) and a piston rod (130) being arranged in the cylinder body, a spring group (140) being arranged between the piston rod (130) and the cylinder body (110), the spring group (140) being compressed and fixed between the piston (120) and the cover (150) through a cover (150); characterized in that: The tooling comprises: a hydraulic cylinder (2) supported by a gantry support (1); the hydraulic cylinder (2) is connected to a hydraulic station (4) via a hydraulic oil pipe (3); the gantry support is fixedly connected to a fixed base plate (5) arranged on the ground; a support pad (6) supporting and fixing the cylinder body is arranged at the connection between the gantry support (1) and the book search fixed base plate (5); a hydraulic rod (7) of the hydraulic cylinder (2) extends downward to the inner side of the gantry support; a hollow sleeve (8) is arranged at the front end of the hydraulic rod.

2. The spring cylinder assembly tool according to claim 1, characterized in that: The hydraulic oil pipe comprises an oil inlet pipe (301) and an oil outlet pipe (302).

3. The spring cylinder assembly tool according to claim 1, characterized in that: The spring group (140) comprises a first spring (141) and a second spring (142).

4. The spring cylinder assembly tool according to claim 3, characterized in that: The diameter of the first spring is greater than that of the second spring, and the first spring and the second spring are different from each other and can be selected from a left-handed spring and a right-handed spring.

5. The spring cylinder assembly tool according to claim 1, characterized in that: The length of the hollow sleeve is greater than the distance that the piston rod (130) extends beyond the cylinder body (110).

6. The spring cylinder assembly tool according to claim 1, characterized in that: The bottom of the cylinder body (110) is provided with a fixing hole (160), and the top of the piston rod is provided with a circular ring hole (170).

7. The spring cylinder assembly tool according to claim 1, characterized in that: The cover (150) and the cylinder body (110) are connected via bolts.

8. The spring cylinder assembly tool according to claim 1, characterized in that: The gantry support comprises a crossbeam (11) and upright poles (12) arranged on both sides of the crossbeam, and the support pad (6) comprises a first pad block (61) and a second pad block (62), wherein the first pad block and the second pad block are respectively arranged on the inner sides of the bottoms of the upright poles on both sides of the crossbeam.

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