Polishing machine grinding head buffer device

Abstract

This utility model belongs to the technical field of pipe end polishing machines, and specifically discloses a polishing machine grinding head buffer device. The technical solution includes a guide rod and a support cylinder. The guide rod is a stepped shaft located inside the support cylinder. A compression spring and multiple adjusting washers are arranged between the shoulder of the guide rod and the top of the support cylinder. The compression spring and adjusting washers are coaxially sleeved on the guide rod. The bottom of the compression spring contacts the shoulder of the guide rod, and the multiple adjusting washers are sequentially arranged on the upper part of the compression spring. The support cylinder is fixedly mounted on a base plate. The tail of the guide rod is connected to a power mechanism, which drives the guide rod to move inside the support cylinder. The head of the guide rod extends to the outside of the support cylinder. This grinding head buffer device uses a spring to provide initial preload and adjust the buffer stiffness, achieving a buffering and shock absorption effect and improving equipment stability.

Description

Technical Field

[0001] This utility model belongs to the technical field of tube end polishing machine, and in particular relates to a polishing machine grinding head buffer device. Background Technology

[0002] Pipe end polishing and grinding equipment is used to polish the inner and outer walls of steel pipes. Driven by the polishing system's drive mechanism, the polishing wheel grinds the pipe, primarily to remove rust and improve surface smoothness and precision for subsequent inspection. Currently available polishing machines suffer from several problems, particularly poor vibration damping, which severely impacts polishing efficiency and the final polishing effect. The high-frequency vibrations generated during operation cause inaccurate wheel pressure or speed, and prolonged high-speed operation can easily lead to spindle misalignment, ultimately resulting in scratches, ripples, under-polishing, or over-polishing after polishing. Furthermore, the metal dust and noise generated during polishing harm the health of workers. These factors significantly reduce the practicality of polishing machines.

[0003] Current polishing machines have the following drawbacks when operating at high speeds: when the grinding head comes into direct contact with the pipe, it can generate a large instantaneous impact, causing the pipe to deform or scratch its surface; high-speed vibration also accelerates the wear of the equipment, reduces its stability, leads to frequent replacement of the polishing wheel due to wear, increases costs, and causes uneven polishing of the pipe surface, with some areas being over- or under-polished; the polishing machine needs to be frequently adjusted for different types of pipes, affecting efficiency; and the metal dust and noise generated during the polishing process can harm the health of workers. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a grinding head buffer device for polishing machines. The grinding head buffer device of this utility model uses a spring to provide an initial preload and adjust the buffer stiffness to achieve the effect of buffering and shock absorption, thereby improving the stability of the equipment.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a polishing machine grinding head buffer device, including a guide rod and a support cylinder. The guide rod is a stepped shaft and is located inside the support cylinder. A compression spring and multiple adjusting washers are provided between the shoulder of the guide rod and the top of the support cylinder. The compression spring and the adjusting washers are coaxially mounted on the guide rod. The bottom of the compression spring contacts the shoulder of the guide rod, and the multiple adjusting washers are sequentially arranged on the upper part of the compression spring.

[0006] The support cylinder is fixedly mounted on the base plate. The tail of the guide rod is connected to the power mechanism. The power mechanism drives the guide rod to move inside the support cylinder, and the head of the guide rod extends to the outside of the support cylinder.

[0007] Furthermore, a stop assembly is provided at the head of the guide rod. The stop assembly includes a pad fitted onto the head of the guide rod, and a nut is provided on the guide rod above the pad. The nut vibrates with the guide rod.

[0008] Furthermore, the head of the guide rod is pre-drilled with a pin hole.

[0009] Furthermore, the power mechanism is a cylinder.

[0010] Compared with the prior art, the advantages of this utility model are as follows: This utility model can effectively absorb the high-frequency vibration generated during the operation of the polishing machine, reducing the problem of pipe scratches; it reduces equipment wear and improves equipment stability; it adds adjustment pads to meet the polishing needs of different types of pipes; and it reduces metal dust and noise. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram, 1 is the guide rod, 2 is the support cylinder, 3 is the compression spring, 4 is the adjusting washer, 5 is the pad, 6 is the nut, and 7 is the pin hole. Detailed Implementation

[0014] like Figure 1 As shown, the polishing machine's grinding head buffer device includes a guide rod 1 and a support cylinder 2. The guide rod 1 is a stepped shaft with a larger diameter at the tail and a smaller diameter at the head. The guide rod 1 is installed inside the support cylinder 2, which is fixedly connected to the base plate of the polishing machine. The diameter of the tail of the guide rod 1 is smaller than the inner diameter of the support cylinder 2, and the tail of the guide rod 1 is connected to the power mechanism. The head of the guide rod 1 extends to the outside of the support cylinder 2, and a pin hole 7 is pre-set in the head of the guide rod 1, allowing the guide rod 1 to vibrate slightly up and down inside the support cylinder 2.

[0015] A compression spring 3 and multiple adjusting washers 4 are provided between the shoulder of the guide rod 1 and the top inner wall of the support cylinder 2. The compression spring and the adjusting washers 4 are coaxially sleeved on the guide rod 1, with the bottom of the compression spring 3 in contact with the shoulder of the guide rod 1, and the multiple adjusting washers 4 are sequentially arranged on the upper part of the compression spring 3.

[0016] The polishing machine grinding head buffer device of this utility model has been described in detail above. To facilitate those skilled in the art to better understand the working process of this utility model, a brief description of the structure of the polishing machine is provided below.

[0017] The polishing machine includes a swing plate assembly. One end of the swing plate assembly is hinged to a support cylinder, and the bottom of the other end of the swing plate assembly is hinged to a base. A polishing wheel is fixedly mounted on the swing plate assembly above the base. In operation, the power mechanism cylinder rises, adjusting the polishing wheel to the working position. The high-frequency vibration generated by the polishing wheel during grinding is transmitted to the grinding head buffer device via the swing plate assembly. The vibration amplitude of the polishing machine is adjusted by the deformation of the compression spring 3, achieving a shock absorption effect. The number of washers 4 can be adjusted to meet the shock absorption requirements of different pipe types.

[0018] In addition, a stop assembly is provided at the head of the guide rod 1. The stop assembly includes a pad 5 fitted onto the head of the guide rod 1, and a nut 6 is provided on the guide rod 1 above the pad 5. The nut 6 vibrates with the guide rod 1. The pad 5 can prevent the guide rod 1 from retracting too much. The pad 5 can be made of soft material to prevent rigid contact.

[0019] This invention adds a grinding head buffer device to the existing polishing machine equipment. The compression spring 3 provides an initial preload to adjust the buffer stiffness, thereby achieving the effect of buffering and shock absorption and improving the stability of the equipment.

[0020] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A buffer device for a polishing head of a polishing machine, characterized in that: The device comprises a guide rod (1) and a supporting cylinder (2), the guide rod (1) is a stepped shaft, the guide rod (1) is located in the supporting cylinder (2), a compression spring (3) and a plurality of adjusting washers (4) are arranged between the shaft shoulder of the guide rod (1) and the top of the supporting cylinder (2), the compression spring (3) and the adjusting washers (4) are coaxially installed on the guide rod (1), the bottom of the compression spring (3) is in contact with the shaft shoulder of the guide rod (1), and the plurality of adjusting washers (4) are sequentially arranged on the upper part of the compression spring (3). The supporting cylinder (2) is fixedly arranged on a bottom plate, the tail of the guide rod (1) is connected with a power mechanism, the power mechanism drives the guide rod (1) to move in the supporting cylinder (2), and the head of the guide rod (1) extends to the outside of the supporting cylinder (2).

2. The polisher head buffer device according to claim 1, wherein: A stop component is arranged on the head of the guide rod (1), the stop component comprises a pad plate (5) sleeved on the head of the guide rod (1), a nut (6) is arranged on the guide rod (1) at the upper part of the pad plate (5), and the nut (6) vibrates with the guide rod (1).

3. The polisher head buffer apparatus of claim 2, wherein: A pin hole (7) is arranged on the head of the guide rod (1).

4. The polisher head buffer apparatus of claim 3, wherein: The power mechanism is a gas cylinder.

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