Soft high-frequency vibration spring

Abstract

The utility model discloses a soft high-frequency vibration spring, which comprises a fixed sleeve and mounting plates, the fixed sleeve is welded on the lower surface of the upper mounting plate, a movable sleeve is welded on the upper surface of the lower mounting plate, and a vibration spring main body is arranged in the fixed sleeve and the movable sleeve; the top of the inner wall of the fixed sleeve is in bolted connection with a sleeve, a cavity is formed in the sleeve, the bottom of the inner wall of the sleeve is connected with a piston rod in a penetrating mode, and the bottom of the piston rod is in bolted connection with the inner wall of the movable sleeve. According to the soft high-frequency vibration spring, when the flexibility degree of the vibration spring body needs to be adjusted, an adjusting block is rotated through a tool, so that the adjusting block drives a threaded rod to move up and down and drives a moving block to move up and down in a sleeve, the distance between the moving block and a piston plate can be adjusted, and then the compression degree of the vibration spring body is changed; and the vibration spring main body is softer or harder so as to meet different use requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of springs, in particular to a soft high-frequency vibration spring. Background Art

[0002] The vibration spring in the vibration friction welding machine is an important part of the equipment, used to generate the necessary vibration to drive the friction welding process;

[0003] For example, a vibration friction welding machine bundle spring structure with publication number CN208774079U includes a bridge, a pad, a bottom plate, a seat plate, a limit block, an upper pressure plate, a vibration spring steel and a connecting plate; 18 elliptical holes with equal spacing are opened on the outer plane of the vibration spring steel, and the long axis of the elliptical holes is vertically distributed; the waist-shaped holes are changed into elliptical holes, which reduces the distance between any two adjacent elliptical holes and reduces the stiffness of the bundle spring structure, thereby expanding the amplitude and increasing the vibration frequency;

[0004] When the above technical solution is in use, the vibration frequency is increased by opening a plurality of equally spaced elliptical holes on the outer plane of the vibration spring steel. However, the softness of the vibration spring steel cannot be adjusted, so that the hardness of the vibration spring steel is fixed and cannot absorb more shocks and vibrations, resulting in the inability to adapt to different application requirements.

[0005] Therefore, we proposed a soft high-frequency vibration spring that can solve the above problems well. Utility Model Content

[0006] The purpose of the utility model is to provide a soft high-frequency vibration spring to solve the problem that the softness of the vibration spring steel proposed in the above background technology cannot be adjusted, so that the hardness of the vibration spring steel is fixed and cannot absorb more impact and vibration, resulting in the problem that it cannot be applied to different application requirements.

[0007] To achieve the above object, the utility model provides the following technical solution: a soft high-frequency vibration spring, comprising a fixed sleeve and a mounting plate, wherein the fixed sleeve is welded to the lower surface of the upper mounting plate, and a movable sleeve is welded to the upper surface of the lower mounting plate, and a vibration spring body is arranged inside the fixed sleeve and the movable sleeve;

[0008] It also includes: a sleeve is bolted to the top of the inner wall of the fixed sleeve, and a cavity is opened inside the sleeve, a piston rod is penetrated and connected to the bottom of the inner wall of the sleeve, and the bottom of the piston rod is bolted to the inner wall of the movable sleeve;

[0009] One end of the piston rod away from the movable sleeve extends into the interior of the cavity, one end of the piston rod is fixedly connected to a piston plate, and a return spring is installed between the end of the piston plate away from the piston rod and the inner wall of the cavity;

[0010] An oil inlet pipe is fixed on the right side of the sleeve, and an oil drain pipe is opened on the left side of the sleeve. A threaded rod is connected to the inside of the sleeve, and the bottom of the threaded rod extends into the interior of the cavity. A moving block is fixedly connected to the bottom of the threaded rod, and an adjusting block is sleeved on the outer side of the upper end of the threaded rod.

[0011] Preferably, one end of the movable sleeve away from the lower mounting plate extends into the inner wall of the fixed sleeve, and the movable sleeve and the fixed sleeve are in sealed sliding connection.

[0012] Preferably, both ends of the vibration spring body are fixedly connected to the inner walls of the fixed sleeve and the movable sleeve respectively.

[0013] Preferably, a sealing ring is provided at the connection position of the outer sides of the fixed sleeve and the movable sleeve.

[0014] Preferably, the outer side of the piston plate is in sealed sliding connection with the inner wall of the sleeve, and the piston rod is in sealed sliding connection with the sleeve.

[0015] Preferably, the outer side of the adjusting block passes through the interior of the sleeve, and the adjusting block and the sleeve are rotationally connected, and the adjusting block and the threaded rod are threadedly connected.

[0016] Preferably, the outer side of the moving block is in sealed sliding connection with the inner wall of the cavity, and the threaded rod is in sliding connection with the sleeve.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the soft high-frequency vibration spring adopts a new structural design, the specific contents of which are as follows:

[0018] (1) When the flexibility of the vibration spring body needs to be adjusted, the adjusting block is rotated with a tool so that the adjusting block drives the threaded rod to move up and down, and drives the moving block to move up and down in the sleeve, so that the distance between the moving block and the piston plate can be adjusted, thereby changing the compression degree of the vibration spring body, making the vibration spring body softer or harder to meet different usage requirements;

[0019] Furthermore, the hydraulic oil enters the sleeve from the oil inlet pipe, so that when the piston rod drives the piston plate to slide in the sleeve, the vibration can be reduced;

[0020] (2) The vibration spring body is installed in the fixed sleeve and the movable sleeve, so that the vibration spring body can be expanded and contracted in the fixed sleeve and the movable sleeve, thereby improving the stability of the vibration spring body;

[0021] (3) A sealing ring is provided at the connection position between the movable sleeve and the fixed sleeve to prevent dust from entering the interior of the movable sleeve and the fixed sleeve and affecting the smoothness of sliding of the movable sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main cross-sectional structure of the fixed sleeve and the movable sleeve of the utility model;

[0023] Figure 2 This is a schematic diagram of the main cross-sectional structure of the sleeve of the utility model;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed sleeve, the movable sleeve and the vibration spring main body of the utility model;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the threaded rod, the moving block and the piston plate of the utility model;

[0026] Figure 5 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 6 This is a schematic diagram of the upward movement structure of the moving block of the utility model.

[0028] In the figure: 1. fixed sleeve; 2. movable sleeve; 3. sleeve; 4. mounting plate; 5. vibration spring body; 6. sealing ring; 7. piston rod; 8. oil inlet pipe; 9. piston plate; 10. return spring; 11. threaded rod; 12. adjusting block; 13. moving block; 14. cavity; 15. oil drain pipe. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1-Figure 6 , the utility model provides the following technical solutions: a soft high-frequency vibration spring;

[0031] Embodiment 1: In order to solve the problem that the softness of the vibration spring steel in the prior art cannot be adjusted, so that the hardness of the vibration spring steel is fixed and cannot absorb more shock and vibration, resulting in the problem that it cannot be applied to different application requirements, the following solution is disclosed, and specific reference is made to Figure 1-Figure 6As shown, it includes a fixed sleeve 1 and a mounting plate 4, the fixed sleeve 1 is welded to the lower surface of the upper mounting plate 4, the upper surface of the lower mounting plate 4 is welded with a movable sleeve 2, and a vibration spring body 5 is arranged inside the fixed sleeve 1 and the movable sleeve 2, and both ends of the vibration spring body 5 are fixedly connected to the inner walls of the fixed sleeve 1 and the movable sleeve 2 respectively, and one end of the movable sleeve 2 away from the lower mounting plate 4 extends into the inner wall of the fixed sleeve 1, and the movable sleeve 2 and the fixed sleeve 1 are sealed and slidably connected;

[0032] It also includes: a threaded rod 11 is connected to the inside of the sleeve 3, the outer side of the moving block 13 is in sealed sliding connection with the inner wall of the cavity 14, the threaded rod 11 and the sleeve 3 are in sliding connection, and the bottom of the threaded rod 11 extends into the inside of the cavity 14, and the moving block 13 is fixedly connected to the bottom of the threaded rod 11, and an adjustment block 12 is sleeved on the outer side of the upper end of the threaded rod 11, the outer side of the adjustment block 12 passes through the inside of the sleeve 3, and the adjustment block 12 and the threaded rod 11 are threadedly connected;

[0033] When in use, the upper mounting plate 4 is fixed to the main machine of the vibration friction welding machine by bolts, and the welding head is fixed to the bottom of the lower mounting plate 4 by bolts. Then, when the vibration friction welding machine is working, vibration will be generated. At this time, the vibration is transmitted to the welding head through the two mounting plates 4, the movable sleeve 2, the fixed sleeve 1 and the vibration spring body 5. At this time, the vibration spring body 5 undergoes a high-frequency micro-elastic deformation under the action of the vibration force, thereby driving the welding head to vibrate at a high frequency. Since the vibration spring body 5 is installed in the fixed sleeve 1 and the movable sleeve 2, the vibration spring body 5 is telescoped in the fixed sleeve 1 and the movable sleeve 2, thereby improving the stability of the vibration spring body 5. Then, when it is necessary to adjust the flexibility of the vibration spring body 5, the staff rotates the adjustment block 12 with a tool, so that the adjustment block 12 drives the threaded rod 11 to move up and down, and drives the moving block 13 to move up and down in the cavity 14 of the sleeve 3, so that the spacing between the moving block 13 and the piston plate 9 can be adjusted, thereby changing the compression degree of the vibration spring body 5, making the vibration spring body 5 softer or harder to meet different usage requirements.

[0034] Embodiment 2: Different from Embodiment 1, this embodiment uses a sealing ring 6 to improve the sealing performance of the connection between the fixed sleeve 1 and the movable sleeve 2. Figure 1 As shown, a sealing ring 6 is provided at the connection position of the outer sides of the fixed sleeve 1 and the movable sleeve 2;

[0035] A sealing ring 6 is provided at the connection position between the movable sleeve 2 and the fixed sleeve 1 to prevent dust from entering the inside of the movable sleeve 1 and the fixed sleeve 2 and affecting the smoothness of sliding of the movable sleeve 2 .

[0036] Embodiment 3: Different from Embodiment 2, this embodiment utilizes the sleeve 3, piston rod 7 and piston plate 9 to reduce vibration, thereby improving the performance of the vibration spring body 5. Figure 1-Figure 3 and Figure 6 As shown, the top of the inner wall of the fixed sleeve 1 is bolted to the sleeve 3, and a cavity 14 is opened inside the sleeve 3, the bottom of the inner wall of the sleeve 3 is penetrated and connected with the piston rod 7, the outer side of the piston plate 9 and the inner wall of the sleeve 3 are in sealed sliding connection, the piston rod 7 and the sleeve 3 are in sealed sliding connection, and the bottom of the piston rod 7 is bolted to the inner wall of the movable sleeve 2; the end of the piston rod 7 away from the movable sleeve 2 extends into the cavity 14, one end of the piston rod 7 is fixedly connected to the piston plate 9, and a return spring 10 is installed between the end of the piston plate 9 away from the piston rod 7 and the inner wall of the cavity 14; an oil inlet pipe 8 is opened and fixed on the right side of the sleeve 3, and an oil discharge pipe 15 is opened on the left side of the sleeve 3;

[0037] The hydraulic oil enters the cavity 14 of the sleeve 3 from the oil inlet pipe 8, so that when the piston rod 7 drives the piston plate 9 to slide in the cavity 14 of the sleeve 3, it can reduce the vibration, thereby improving the performance of the vibration spring body 5, and then the hydraulic oil in the cavity 14 can be discharged through the oil drain pipe 15.

[0038] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soft high-frequency vibration spring, comprising a fixed sleeve (1) and a mounting plate (4), wherein the fixed sleeve (1) is welded to the lower surface of the upper mounting plate (4), and a movable sleeve (2) is welded to the upper surface of the lower mounting plate (4), and a vibration spring body (5) is arranged inside the fixed sleeve (1) and the movable sleeve (2); It is characterized in that Also includes: The top of the inner wall of the fixed sleeve (1) is bolted to a sleeve (3), and a cavity (14) is provided inside the sleeve (3). The bottom of the inner wall of the sleeve (3) is penetrated and connected to a piston rod (7), and the bottom of the piston rod (7) is bolted to the inner wall of the movable sleeve (2); One end of the piston rod (7) away from the movable sleeve (2) extends into the interior of the cavity (14); one end of the piston rod (7) is fixedly connected to a piston plate (9); and a return spring (10) is installed between the end of the piston plate (9) away from the piston rod (7) and the inner wall of the cavity (14); An oil inlet pipe (8) is fixedly provided on the right side of the sleeve (3), and an oil outlet pipe (15) is provided on the left side of the sleeve (3); a threaded rod (11) is connected to the interior of the sleeve (3), and the bottom of the threaded rod (11) extends into the interior of the cavity (14); a moving block (13) is fixedly connected to the bottom of the threaded rod (11), and an adjusting block (12) is sleeved on the outer side of the upper end of the threaded rod (11).

2. A soft high-frequency vibration spring according to claim 1, characterized in that: One end of the movable sleeve (2) away from the lower mounting plate (4) extends into the inner wall of the fixed sleeve (1), and the movable sleeve (2) and the fixed sleeve (1) are in sealed sliding connection.

3. A soft high-frequency vibration spring according to claim 1, characterized in that: Both ends of the vibration spring body (5) are fixedly connected to the inner walls of the fixed sleeve (1) and the movable sleeve (2).

4. A soft high-frequency vibration spring according to claim 1, characterized in that: A sealing ring (6) is provided at the connection position on the outside of the fixed sleeve (1) and the movable sleeve (2).

5. A soft high-frequency vibration spring according to claim 1, characterized in that: The outer side of the piston plate (9) and the inner wall of the sleeve (3) are in sealed sliding connection, and the piston rod (7) and the sleeve (3) are in sealed sliding connection.

6. A soft high-frequency vibration spring according to claim 1, characterized in that: The outer side of the adjustment block (12) passes through the interior of the sleeve (3), and the adjustment block (12) and the sleeve (3) are rotationally connected, and the adjustment block (12) and the threaded rod (11) are threadedly connected.

7. A soft high-frequency vibration spring according to claim 1, characterized in that: The outer side of the moving block (13) and the inner wall of the cavity (14) are in sealed sliding connection, and the threaded rod (11) and the sleeve (3) are in sliding connection.

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