Mechanical spring cylinder dismounting and mounting tool

Abstract

The utility model provides a kind of mechanical spring cylinder dismounting tool, belong to dismounting tool technical field.It solves the problem that the existing spring cylinder dismounting has great security risk.This mechanical spring cylinder dismounting tool includes square bottom plate, square pressing plate, annular pressing ring and four straight rod-shaped guide posts, the center of bottom plate has locating hole, pressing ring is fixedly connected at the center of the bottom of pressing plate, pressing ring and locating hole are coaxial, there are several equidistantly arranged through holes in pressing plate and form a circle, pressing ring is located at the center of a circle of through hole, guide post has external thread, the bottom of four guide posts is respectively fixedly connected at the four corners of bottom plate, the top of four guide posts is respectively set nut after passing through the four corners of pressing plate, pressing plate can move along four guide posts.This mechanical spring cylinder dismounting tool has the advantages of making spring cylinder dismounting convenient, and improving security.

Description

Technical Field

[0001] This utility model belongs to the field of disassembly and assembly tooling technology, and relates to a disassembly and assembly tooling for a mechanical spring cylinder. Background Technology

[0002] A spring cylinder is a composite actuator that combines a mechanical spring with a cylinder (or hydraulic cylinder). It achieves reset or braking functions through the elastic force of the spring and is widely used in industrial robots, industrial automation, automotive braking, and engineering machinery.

[0003] The springs in spring cylinders typically have a high elastic modulus and are in a pre-compressed state, requiring a high degree of sealing between the cylinder body and cylinder head. Traditional disassembly and assembly methods require multiple operators to work together, manually assembling and disassembling the spring cylinder. However, this method is inefficient, and during disassembly, the pre-compressed springs have tremendous elastic force, which can cause the cylinder head to fly off, potentially injuring the operators and posing a significant safety hazard. Summary of the Invention

[0004] The purpose of this utility model is to address the aforementioned problems in the existing technology by proposing a mechanical spring cylinder assembly and disassembly tool, which solves the technical problem of how to make the spring cylinder assembly and disassembly convenient and improve safety.

[0005] The purpose of this utility model can be achieved through the following technical solution: A mechanical spring cylinder disassembly and assembly fixture, comprising a square base plate, characterized in that the disassembly and assembly fixture further comprises a square pressure plate, an annular pressure ring, and four straight rod-shaped guide posts. The base plate has a positioning hole at its center. The pressure ring is fixedly connected to the center of the bottom of the pressure plate. The pressure ring and the positioning hole are coaxially arranged. The pressure plate has a plurality of through holes arranged at equal intervals and forming a circle. The pressure ring is located at the center of the circle of through holes. The guide posts have external threads. The bottoms of the four guide posts are respectively fixedly connected to the four corners of the base plate. The tops of the four guide posts pass through the four corners of the pressure plate and nuts are respectively fitted on the tops of the four guide posts. The pressure plate can move along the four guide posts.

[0006] A spring cylinder consists of a cylinder body, a cylinder head, and a spring. The spring is located inside the cylinder body, with its two ends acting on the cylinder body and cylinder head, respectively. During assembly, the spring cylinder is placed between a base plate and a pressure plate, with the bottom of the cylinder body embedded in the positioning hole. The cylinder head, under the force of the spring, presses against the pressure ring. A hydraulic press pushes the pressure plate downwards along four guide posts, causing the cylinder head to abut against the cylinder body, ensuring the spring is fully positioned within the cylinder body. Then, a tool is used to pass through the through holes, and bolts are tightened to secure the cylinder body and cylinder head together. The through holes are evenly spaced and form a circle, allowing for the connection of multiple bolts, thus facilitating the assembly of the spring cylinder. During disassembly, place the spring cylinder between the base plate and the pressure plate, ensuring the bottom of the cylinder body is embedded in the positioning hole. Then, move the pressure plate downwards along the four guide posts, pressing the pressure ring onto the cylinder head. Rotate the nut to make it rest against the pressure plate. Use a tool to pass through the through hole and loosen the bolts to separate the cylinder body from the cylinder head. At this point, the cylinder head will not pop out due to the nut positioning the pressure plate, preventing injury to the operator and improving safety. Subsequently, gradually rotate the four nuts upwards to gradually release the spring force until the spring is in its normal state, completing the disassembly of the spring cylinder and making disassembly convenient.

[0007] In the aforementioned mechanical spring cylinder assembly / disassembly fixture, the pressure plate has a through hole at its center, which is coaxially arranged with the pressure ring. The through hole allows the output shaft of the spring cylinder to pass through, enabling the complete assembly / disassembly of the spring cylinder using this fixture.

[0008] In the aforementioned mechanical spring cylinder assembly / disassembly fixture, the bottom of the inner ring of the pressure ring protrudes downwards. This structure allows the pressure ring to better hold the cylinder head in place, preventing the cylinder head from deviating from its intended position.

[0009] In the aforementioned mechanical spring cylinder assembly / disassembly fixture, the top of the guide post has the external thread. The guide post only needs to have the external thread in appropriate locations; it does not need to have the entire post threaded.

[0010] In the aforementioned mechanical spring cylinder assembly / disassembly fixture, both the base plate and the pressure plate are flat, with the base plate being thicker than the pressure plate. A thicker base plate improves the stability of the fixture, while the pressure plate only needs sufficient strength; its relatively thinness saves costs.

[0011] In the above-mentioned mechanical spring cylinder assembly and disassembly fixture, the pressure ring and the pressure plate are fixedly connected by fasteners or welded together.

[0012] Compared with the prior art, the mechanical spring cylinder disassembly and assembly tooling provided by this utility model has the following advantages:

[0013] 1. This disassembly and assembly tool uses a hydraulic press to push the pressure plate down along the guide post, and then through the through hole to lock the cylinder body and cylinder head, thus completing the assembly of the spring cylinder. During disassembly and assembly, loosen the bolts to separate the cylinder body and cylinder head, and then gradually move the pressure plate up until the spring is in the normal state, thus completing the disassembly of the spring cylinder, making the disassembly and assembly of the spring cylinder convenient.

[0014] 2. This disassembly and assembly tool uses a pressure ring and a pressure plate to hold the cylinder head in place, preventing the cylinder head from popping up under the force of the spring and improving safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this disassembly and assembly tool.

[0016] Figure 2 This is a diagram showing the state of the spring cylinder during the disassembly and assembly of this tool.

[0017] Figure 3 This is a sectional view of the spring cylinder during the disassembly and assembly of this tool.

[0018] In the diagram, 1 is the base plate; 2 is the pressure plate; 3 is the pressure ring; 4 is the guide post; 5 is the positioning hole; 6 is the through hole; 7 is the nut; and 8 is the through hole. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] like Figure 1 , Figure 2 , Figure 3 As shown, the mechanical spring cylinder assembly and disassembly fixture includes a base plate 1, a pressure plate 2, a pressure ring 3, a guide post 4, and a nut 7.

[0021] The base plate 1 is square and has a positioning hole 5 in the center. The pressure plate 2 is square and has a through hole 8 in the center. Both the base plate 1 and the pressure plate 2 are flat. The thickness of the base plate 1 is greater than the thickness of the pressure plate 2.

[0022] In this embodiment, the pressure plate 2 has ten through holes 6 that are equally spaced and arranged in a circle. In actual production, the number of through holes 6 can be eight or sixteen.

[0023] The pressure ring 3 is annular and is fixed to the center of the bottom of the pressure plate 2. The bottom of the inner ring of the pressure ring 3 protrudes downward. The through hole 8, the pressure ring 3, and the positioning hole 5 are coaxially arranged, and the pressure ring 3 is located at the center of a ring of through holes 6. In this embodiment, the pressure ring 3 and the pressure plate 2 are fixed together by fasteners such as bolts. In actual production, the pressure ring 3 and the pressure plate 2 are welded together.

[0024] There are four guide posts 4. Each guide post 4 is straight and has an external thread, which is located at the top of the guide post 4. The bottom of each of the four guide posts 4 is fixed to one of the four corners of the base plate 1. The tops of each of the four guide posts 4 pass through the four corners of the pressure plate 2 and are fitted with nuts 7. The pressure plate 2 can move along the four guide posts 4.

[0025] During assembly, the spring cylinder is placed between the base plate 1 and the pressure plate 2, with the bottom of the cylinder body embedded in the positioning hole 5. The cylinder head, under the action of the spring force, presses against the pressure ring 3. The pressure plate 2 is pushed by a hydraulic press, causing it to move downwards along the four guide posts 4, so that the cylinder head abuts against the cylinder body, ensuring the spring is fully located within the cylinder body. Then, a tool is used to pass through the through hole 6, and the bolts are tightened to secure the cylinder body and cylinder head together, completing the assembly of the spring cylinder. During disassembly, the spring cylinder is placed between the base plate 1 and the pressure plate 2, with the bottom of the cylinder body embedded in the positioning hole 5. The pressure plate 2 is then moved downwards along the four guide posts 4, causing the pressure ring 3 to press against the cylinder head. The nut 7 is rotated so that it abuts against the pressure plate 2. Then, a tool is used to pass through the through hole 6, and the bolts are loosened to separate the cylinder body and cylinder head. Subsequently, the four nuts 7 are gradually rotated upwards, causing the spring force to gradually release until the spring is in its normal state, completing the disassembly of the spring cylinder.

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0027] Although this document frequently uses terms such as base plate 1, pressure plate 2, pressure ring 3, guide post 4, positioning hole 5, through hole 6, nut 7, and via hole 8, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A mechanical spring cylinder assembly / disassembly fixture, comprising a square base plate (1), characterized in that, The assembly and disassembly fixture also includes a square pressure plate (2), an annular pressure ring (3), and four straight rod-shaped guide posts (4). The base plate (1) has a positioning hole (5) at its center. The pressure ring (3) is fixed to the center of the bottom of the pressure plate (2). The pressure ring (3) and the positioning hole (5) are coaxially arranged. The pressure plate (2) has several through holes (6) arranged at equal intervals and forming a circle. The pressure ring (3) is located at the center of the circle of through holes (6). The guide posts (4) have external threads. The bottoms of the four guide posts (4) are fixed to the four corners of the base plate (1). The tops of the four guide posts (4) pass through the four corners of the pressure plate (2) and nuts (7) are respectively fitted on the tops of the four guide posts (4). The pressure plate (2) can move along the four guide posts (4).

2. The mechanical spring cylinder disassembly and assembly tooling according to claim 1, characterized in that, The pressure plate (2) has a through hole (8) at its center, and the through hole (8) is coaxially arranged with the pressure ring (3).

3. A mechanical spring cylinder disassembly and assembly tooling according to claim 1 or 2, characterized in that, The bottom of the inner ring of the pressure ring (3) protrudes downward.

4. A mechanical spring cylinder disassembly and assembly tooling according to claim 1 or 2, characterized in that, The top of the guide post (4) has the external thread.

5. A mechanical spring cylinder disassembly and assembly tooling according to claim 1 or 2, characterized in that, Both the base plate (1) and the pressure plate (2) are flat, and the thickness of the base plate (1) is greater than the thickness of the pressure plate (2).

6. A mechanical spring cylinder disassembly and assembly tooling according to claim 1 or 2, characterized in that, The pressure ring (3) and the pressure plate (2) are fixedly connected by fasteners or by welding.

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