Force value spring assembly bracket

Abstract

The application provides a high force value spring assembly support, which comprises an upper joint seat, a bearing pin shaft, a lower joint seat and a measuring assembly, a round hole is processed on the upper joint seat, and the round hole is connected with a round hole at one end of a spring through the bearing pin shaft, a round hole is processed on the lower joint seat, and the round hole is connected with a round hole at the other end of the spring through the bearing pin shaft, the measuring assembly is installed on the corresponding bearing pin shafts on the same side for measuring the spring compression distance, the whole assembly support is placed in a pressure support together with the spring, and a jack is placed between the upper joint seat and the top surface in the pressure support. The use of the high force value spring assembly support solves the problem that the tubular spring cannot be compressed and assembled, ensures the spring compression, can accurately control the spring compression distance through the displacement distance of the limiting mark seat and the sliding mark seat, ensures the assembly quality, the bearing pin shaft is used in cooperation with the pressing sleeve, the safety of the pressing and assembling process is ensured, the product assembly demand is greatly met, and reliable guarantee is provided for the quality of the product.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of spring assembly tooling, in particular to an assembly support suitable for large force value springs specially made of metal pipes. BACKGROUND

[0002] A spring is a mechanical part that works by using elasticity. A part made of elastic material deforms under the action of an external force and returns to its original shape after the external force is removed. Spring force value is simply the calculation of spring force. Spring force value refers to the force that a spring that has undergone elastic deformation exerts on the object in contact with it. This force is called spring force. Spring force value is the calculation of spring force.

[0003] According to the working requirements of aerospace products, a large force value working spring force is realized in the effective space, so titanium alloy pipe cutting springs are selected when selecting springs. As we all know, spring assembly compression is a common problem, especially the compression state of large force value springs. How to ensure the stability and alignment of the spring while ensuring the parallelism of the upper and lower end faces to achieve stable assembly is a problem to be solved. The existing spring assembly is directly connected with the matching structure, and the spring does not need to be compressed separately. The automatic spring assembly device disclosed in CN113118743A provides an automatic spring assembly device for assembling springs, which is a spring assembly method only for steel wire springs and cannot be effectively applied to tubular cutting springs and is not suitable for large force value spring installation. SUMMARY

[0004] The technical problem solved by the present application is to provide a large force value spring assembly support, which provides an assembly support for large force value springs specially made of titanium alloy and other metal pipes, ensures that the large force value spring can be compressed and assembled, and solves the problem that tubular processed springs cannot be assembled in a compressed state.

[0005] The technical scheme adopted by the present application is: a large force value spring assembly support, comprising an upper joint seat, a bearing pin shaft, a lower joint seat and a measuring assembly, a circular hole is processed on the upper joint seat, and the circular hole is connected with one end of the spring through the bearing pin shaft, a circular hole is processed on the lower joint seat, and the circular hole is connected with the other end of the spring through the bearing pin shaft, and the measuring assembly is installed on the corresponding bearing pin shafts on the same side for measuring the compression distance of the spring, the entire assembly support is placed in a pressure support together with the spring, and a jack is placed between the upper joint seat and the top surface in the pressure support.

[0006] Preferably, the measuring assembly comprises a limiting plate and a limiting mark base, the limiting mark base is fixed on the load bearing pin shaft of the lower joint base, the limiting plate is a long strip plate with the upper end fixed on the load bearing pin shaft of the upper joint base, the lower end passes through the limiting mark base, a sliding mark base is installed at the lower part of the limiting plate, the sliding mark base is located below the limiting mark base, and the distance between the sliding mark base and the limiting mark base is increased synchronously with the increase of the compression distance of the spring, so that the assembly precision is guaranteed, repeated alignment during the compression assembly is avoided, and the spring assembly quality is improved.

[0007] Preferably, a blade is processed on the limiting mark base, the blade is a wedge-shaped block, and the end face of the blade faces horizontally downward, a blade is processed on the sliding mark base, the blade is a wedge-shaped block, and the end face of the blade faces horizontally upward and is opposite to the end face of the blade on the limiting mark base, the limiting mark base and the sliding mark base are designed with the blade structure, so that the effective fitting of the initial position is guaranteed, the measurement is facilitated, and the measurement accuracy is guaranteed.

[0008] Preferably, a long hole is processed on the sliding mark base, a light hole is processed on the limiting plate, the sliding mark base and the limiting plate are connected through a bolt assembly, and the relative position of the sliding mark base and the limiting plate can be adjusted along the direction of the long hole.

[0009] Preferably, the upper joint base comprises an upper joint, a top plate and an upper support rod, the upper joint is a disc-shaped ring body with a through hole penetrating from top to bottom, four circular holes are uniformly arranged on the side surface of the ring body, the top plate is a disc plane with the same outer diameter as the upper joint, and an upper support is welded between the top plate and the upper joint. The design of the annular hole of the upper joint can facilitate the assembly after the spring is compressed, the space between the top plate supported by the upper support rod and the upper joint is convenient for the screw rod to be loaded from the top end of the spring, the screw rod passes through the spring from top to bottom in the spring, when the spring is compressed to the required distance, the screw rod is screwed with the threaded hole at the lower end structure of the spring, and the assembly is ensured when the spring is in the compressed state.

[0010] Preferably, the lower joint base comprises a lower joint, a bottom plate and a lower support rod, the lower joint is a circular ring body with a stepped platform, four circular holes are uniformly arranged on the side surface of the upper circular ring body of the stepped platform, and the lower support rod is welded on the other end of the lower support rod. The bottom plate, and the lower joint base as a whole is a cone. The conical structure can increase the stability of the lower joint base, the design of the annular hole of the lower joint can facilitate the assembly after the spring is compressed, when the spring is compressed to the required distance, the screw rod at the upper end of the spring is screwed with the threaded hole at the lower end structure of the spring, and the assembly is ensured when the spring is in the compressed state.

[0011] Preferably, the force pin shaft is a cylinder, one side of which is processed with a shoulder, and the shoulder is a convex ring with an outer diameter larger than that of the cylinder. Since the force pin shaft bears a large shear force, it must have strong rigidity. The material of the force pin shaft is 2Cr13, which is quenched for heat treatment, and the hardness is HRC40-45. The size of the force pin shaft cylinder is tightly matched with the spring round hole to prevent the spring from being deflected during the pressing process.

[0012] Preferably, a pressing sleeve is further included, which is sleeved on the upper joint seat and the lower joint seat. The pressing sleeve is annular, and one circle is provided with four U-shaped grooves, each of which is located corresponding to the position of a force pin shaft, and the U-shaped groove is clamped outside the shoulder of the force pin shaft. The shoulder is matched with the structure of the pressing sleeve. The pressing sleeve is installed from top to bottom and can be clamped outside the shoulder of each force pin shaft at one time, so that the shoulder is clamped between the outside of the pressing sleeve and the upper and lower joints, preventing the force pin shaft from coming out of the spring round hole during the spring compression process.

[0013] Preferably, since the support is used for a long time and needs to be able to bear a large force value spring assembly, it is required that the assembly support has a certain rigidity and hardness. The material of the upper joint seat and the lower joint seat is 45# steel, and the assembly support itself has good rigidity without deformation. The surface is blue treated to prevent rust.

[0014] The beneficial effects of the present application are that the use of the large force value spring assembly support solves the problem of the difficulty of the assembly of the tubular spring, ensures the spring compression, and accurately controls the spring compression distance through the displacement distance of the limiting mark seat and the sliding mark seat, ensures the assembly quality, and greatly meets the product assembly demand, provides reliable guarantee for the quality of the product. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a large force value spring assembly support structure schematic diagram;

[0016] Figure 2 It is Figure 1 It is a partial enlarged structure schematic diagram of the spring compression before the A direction;

[0017] Figure 3 It is Figure 1 It is a partial enlarged structure schematic diagram of the spring compression after the A direction;

[0018] Figure 4 It is a structure schematic diagram of the upper joint seat;

[0019] Figure 5 It is a structure schematic diagram of the lower joint seat;

[0020] Figure 6 It is a structure schematic diagram of the force pin shaft;

[0021] Figure 7 is a structural schematic diagram of the pressing sleeve;

[0022] Figure 8 is a three-view diagram of the limiting mark base;

[0023] Figure 9 is a three-view diagram of the sliding mark base;

[0024] Figure 10 is a schematic diagram of the overall use of the bracket before spring compression;

[0025] Figure 11 is a schematic diagram of the overall use of the bracket after spring compression.

[0026] Reference signs: 1 - upper joint base, 2 - pressing cover, 3 - bearing pin shaft, 4 - lower joint base, 5 - limiting mark base, 6 - sliding mark base, 7 - limiting plate, 8 - bolt assembly, 9 - spring, 10 - blade, 11 - pressure support, 12 - jack, 101 - upper joint, 102 - top plate, 103 - upper support rod, 201 - U-shaped groove, 301 - shoulder, 401 - lower joint, 402 - lower support rod, 403 - reinforcing plate, 404 - base. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0028] The large force value tubular spring described herein is a titanium alloy pipe formed into a spring shape by machining, with four Φ30 process holes, i.e. round holes, machined on the upper and lower parts. When the product is assembled, the spring needs to be compressed to ensure the compression state and fix the product.

[0029] As shown in Figure 1 , a large force value spring assembly bracket includes an upper joint base 1, a bearing pin shaft 3, a lower joint base 4 and a measuring assembly. The upper joint base 1 is machined with a round hole, which is connected with the round hole at one end of the spring 9 through the bearing pin shaft 3. The lower joint base 4 is machined with a round hole, which is connected with the round hole at the other end of the spring 9 through the bearing pin shaft 3. The measuring assembly is installed on the corresponding bearing pin shaft 3 on the same side and above and below for measuring the compression distance L of the spring 9. The entire assembly bracket together with the spring 9 is placed in the pressure support 11, and the jack 12 is placed between the upper joint base 1 and the top surface in the pressure support 11.

[0030] As shown in Figure 2 and Figure 3As shown, the measuring assembly includes a limiting plate 7 and a limiting mark base 5, the limiting mark base 5 is fixed on the load pin shaft 3 of the lower joint base 4, the limiting plate 7 is a long strip plate fixed on the load pin shaft 3 of the upper joint base 1 at the upper end, and the lower end penetrates through the limiting mark base 5, a sliding mark base 6 is installed at the lower part of the limiting plate 7, and the sliding mark base 6 is located below the limiting mark base 5, as shown in the figure Figure 8 As shown, the connecting plate of the limiting mark base 5 is screw-connected with the load pin shaft 3, and an L-shaped blade 10 is extended at the right lower end of the connecting plate in the front direction, the measuring part of the blade 10 is a wedge-shaped block, and the end face of the blade is horizontally downward. As shown Figure 9 As shown, a long hole is processed on the connecting part of the sliding mark base 6, a light hole is processed on the limiting plate 7, the sliding mark base 6 is connected with the limiting plate 7 through a bolt assembly 8, and a protrusion is processed on the left and right sides of the upper end of the connecting part of the sliding mark base 6, the protrusion is just clamped on the two sides of the limiting plate 7, and the relative position of the sliding mark base 6 and the limiting plate 7 can be adjusted along the long hole direction. A blade 10 is processed on the top of the sliding mark base 6, the end face of the blade is horizontally upward, and is opposite to the end face of the blade 10 on the limiting mark base 5. The structure of the blades 10 of the limiting mark base 5 and the sliding mark base 6 can ensure the effective fitting of the initial position, that is Figure 2 As shown, the limiting line, and the compression distance L can be conveniently measured to ensure the measurement accuracy.

[0031] As shown Figure 4 As shown, the upper joint base 1 includes an upper joint 101, a top plate 102 and an upper support rod 103, the upper joint 101 is a disc-shaped annular body with a through hole in the center, four circular holes are uniformly arranged on the side surface of the annular body, the size and position of the circular holes are consistent with the size and position of the circular holes of the spring 9, the top plate 102 is a disc plane with the same outer diameter as the upper joint 101, the upper support rod 103 is welded between the top plate 102 and the upper joint 101, and the length of the upper support rod 103 is determined according to the requirement of the spring internal screw rod installation operation, so as to facilitate the connection operation by hand.

[0032] As shown Figure 5 As shown, the lower joint base 4 includes a lower joint 401, a bottom plate 404 and a lower support rod 402, the lower joint 401 is a circular ring body with a stepped platform, four circular holes are uniformly arranged on the side surface of the upper part of the circular ring body, the size and position of the circular holes are consistent with the size and position of the circular holes of the spring 9, the lower support rod 402 is welded on the side surface of the lower part of the circular ring body, the other end of the lower support rod 402 is welded on the bottom plate 404, and a horizontal reinforcing plate 403 is welded between two adjacent lower support rods 402 at the central position in the length direction of the lower support rod 402, so as to further increase the overall strength of the lower joint base 4. The lower joint base 4 is in the shape of a cone, which can increase the stability of the lower joint base.

[0033] As shown Figure 6As shown, the force bearing pin shaft 3 is a cylinder, one side of which is processed with a shoulder 301, which is a convex ring with an outer diameter larger than that of the cylinder. Since the force bearing pin shaft 3 bears a large shear force, it must have strong rigidity. The material of the force bearing pin shaft 3 is 2Cr13, which is quenched and has a hardness of HRC40-45. The size of the cylinder of the force bearing pin shaft 3 is tightly fitted with the round hole of the spring 9, preventing the spring 9 from being deflected during the pressing process.

[0034] As shown in the drawings, Figure 7 As another embodiment, in order to further enhance the safety in use, the assembly support further comprises a pressing sleeve 2, which is sleeved on the upper joint 101 of the upper joint seat 1 and the lower joint 401 of the lower joint seat 4. The pressing sleeve 2 is annular and has four U-shaped grooves 201. Each U-shaped groove 201 corresponds to the position of a force bearing pin shaft 3, and the U-shaped groove 201 is clamped outside the shoulder 301 of the force bearing pin shaft 3. The shoulder 301 cooperates with the structure of the pressing sleeve 2. The pressing sleeve 2 is installed from top to bottom and can be clamped outside the shoulder 301 of each force bearing pin shaft 3 at one time. The shoulder 301 is clamped between the pressing sleeve 2 and the outer side surface of the upper and lower joints, preventing the force bearing pin shaft 3 from coming out of the round hole of the spring 9 during the compression of the spring 9.

[0035] When the spring is pressed and assembled, as shown in the drawings, Figure 10 and Figure 11 First, the process hole of the spring 9 is fixed by using the force bearing pin shaft 3, so that one side of the spring 9 is connected with the upper joint seat 1 and the other side is connected with the lower joint seat 4. In order to ensure the accuracy of the compression distance L, limit plates 7 and limit mark seats 5 are installed on the two force bearing pin shafts 3. The sliding mark seat 6 is installed on the upper surface of the limit plate 7. When the initial state is adjusted, the blades 10 on the limit mark seat 5 and the sliding mark seat 6 are adjusted to the state of adhesion, as shown in the drawings. At this time, the spring 9 is in a state of being ready to be pressed tightly. When the spring 9 is compressed, the two blades 10 are separated, and the separation distance is the spring compression distance L. Figure 2

[0036] When in use, the entire assembly support together with the spring 9 is placed in the pressure support 11, as shown in the drawings. Figure 10 The top plate 102 of the upper joint seat 1 is placed on the top of the jack 12. The handle of the jack 12 is pressed, and the upper end thereof is in close contact with the inner top surface of the pressure support 11. At this time, the distance C between the two force bearing pin shafts 3 is measured, and the distance A of the top rod of the jack 12 is measured. At the same time, the sliding mark seat 6 is adjusted to ensure that the blades 10 on the limit mark seat 5 and the sliding mark seat 6 are adjusted to the state of adhesion, which is the zero point of the limit line. The handle of the jack 12 is continuously pressed, and the upper end of the spring 9 is moved downward under the action of the upper joint seat 1. The upper force bearing pin shaft 3, the limit plate 7 and the sliding mark seat 6 move downward together, and the blades 10 are separated. As the jack 12 is elongated, the spring 9 is continuously compressed, as shown in the drawings. Figure 11 ​When the distance between the cutting edge 10 of the limiting mark base 5 and the cutting edge 10 of the sliding mark base 6 reaches the required spring compression distance, the product is assembled and fixed, for example, the required compression distance is L, after compression, the axis of the load pin shaft 3 is measured as D, then C-D=L, the distance of the jack 12 is B, then B-A=L. After the spring 9 is compressed, in order to assemble, the screw rod is passed through the spring 9 from top to bottom in the spring 9 from the upper support rod 103, and when the spring 9 is compressed to the required compression distance L, the screw rod is tightened with the lower end structure threaded hole of the spring 9, so that the spring 9 is in a compressed state, and thus the spring assembly is completed.

[0037] The above is the specific embodiment of the present application and the technical principle used, any modification or equivalent transformation based on the technical solution of the present application should be included in the protection scope of the present application.

Claims

1. A high-force spring assembly bracket, characterized in that: The assembly includes an upper connector, a load-bearing pin, a lower connector, and a measuring component. The upper connector has a machined circular hole that connects to a circular hole at one end of the spring via a load-bearing pin. The lower connector has a machined circular hole that connects to a circular hole at the other end of the spring via a load-bearing pin. A measuring component is installed on two corresponding load-bearing pins on the same side to measure the spring compression distance. The entire assembly bracket, along with the spring, is placed inside a pressure bracket. A jack is placed between the upper connector and the top surface of the pressure bracket. The measuring component includes a limiting plate and a limiting marker. The limiting marker is fixed to the load-bearing pin of the lower connector. The limiting plate is a long strip plate with its upper end fixed to the load-bearing pin of the upper connector and its lower end passing through the limiting marker. A sliding marker is installed below the limiting marker. The limiting base is machined with a cutting edge, which is a wedge-shaped block with the cutting edge end face facing downwards. The sliding base is machined with a cutting edge, which is also a wedge-shaped block with the cutting edge end face facing upwards, opposite to the cutting edge end face on the limiting base. The upper connector base includes an upper connector, a top plate, and an upper support rod. The upper connector is a disc-shaped annular body with a vertically penetrating center. Four circular holes are evenly arranged on the side of the annular body. The top plate is a disc-shaped plane with the same outer diameter as the upper connector. An upper bracket is welded between the top plate and the upper connector. A screw is inserted into the space between the top plate supported by the upper support rod and the upper connector. The threaded end of the screw passes through the spring from top to bottom. When the spring is compressed to the required compression distance, the threaded end of the screw is tightened with the threaded hole of the lower end structure of the spring to maintain the compression state of the spring.

2. The high-force spring assembly bracket according to claim 1, characterized in that: The sliding base has an elongated hole, and the limiting plate has a smooth hole. The sliding base and the limiting plate are connected by a bolt assembly. The relative position of the sliding base and the limiting plate can be adjusted along the direction of the elongated hole.

3. The high-force spring assembly bracket according to claim 1, characterized in that: The lower connector seat includes a lower connector, a base plate, and a lower support rod. The lower connector is a ring with a stepped platform. Four circular holes are evenly arranged on the side of the upper ring of the stepped platform. The lower support rod is welded to the side of the lower ring of the stepped platform. The other end of the lower support rod is welded to the base plate. The lower connector seat is cone-shaped as a whole.

4. The high-force spring assembly bracket according to claim 1, characterized in that: The load-bearing pin is a column with a shoulder machined on one side. The shoulder is a convex ring with an outer diameter larger than the outer diameter of the column. The load-bearing pin is made of 2Cr13 and is heat-treated and quenched to a hardness of HRC40-45.

5. The high-force spring assembly bracket according to claim 4, characterized in that: It also includes a pressure sleeve, which is fitted onto the upper and lower connector seats. The pressure sleeve is annular with four U-shaped grooves around it. Each U-shaped groove corresponds to the position of a load-bearing pin. The U-shaped grooves are engaged on the outer side of the shoulder of the load-bearing pin.

6. The high-force spring assembly bracket according to claim 1, characterized in that: The upper and lower connectors are made of 45# steel.

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