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CN-224222763-U - Plastic gland structure for machine tool chuck sealing

CN224222763UCN 224222763 UCN224222763 UCN 224222763UCN-224222763-U

Abstract

The utility model relates to the technical field of plastic gland, and discloses a plastic gland structure for machine tool chuck sealing, which comprises a gland body, wherein a mounting hole is formed in the gland body, a sealing assembly is arranged in the gland body, the sealing assembly comprises a first sealing ring, the outer wall of the first sealing ring is fixedly connected to the inner wall of the gland body, a sliding plate is fixedly connected to the inner wall of the gland body, a second sealing ring is slidingly connected to the outer wall of the sliding plate, a sliding rod is fixedly connected to the outer wall of the sliding plate, a spring is sleeved on the outer wall of the sliding rod, and a sliding groove is formed in the second sealing ring. According to the utility model, the first sealing ring is fixed on the inner wall of the gland body to provide guarantee for primary sealing, and the second sealing ring is in ingenious matching with the sliding plate, the sliding rod and the spring to realize self-adaptive sealing, so that gaps generated by vibration and pressure change are effectively filled, external impurities and liquid are prevented from passing through the chuck of the Kong Qinru machine tool, and the sealing effect is better.

Inventors

  • Mei Lianzhong
  • LIU AIXUE
  • ZHANG HAIYING
  • ZHANG WEI
  • ZHANG LIFEN

Assignees

  • 呼和浩特众环工贸股份有限公司
  • 宁海宏德新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20250515

Claims (8)

  1. 1. The plastic gland structure for machine tool chuck sealing comprises a gland body (1) and is characterized in that a mounting hole (2) is formed in the gland body (1), and a sealing assembly is arranged in the gland body (1); The sealing assembly comprises a first sealing ring (3), the outer wall of the first sealing ring (3) is fixedly connected with the inner wall of the gland body (1), a sliding plate (5) is fixedly connected with the inner wall of the gland body (1), a second sealing ring (4) is slidingly connected with the outer wall of the sliding plate (5), a sliding rod (7) is fixedly connected with the outer wall of the sliding plate (5), a spring (6) is sleeved on the outer wall of the sliding rod (7), and a sliding groove (8) is formed in the second sealing ring (4).
  2. 2. The plastic gland structure sealed by the machine tool chuck according to claim 1, wherein the first reinforcing rib (9) is fixedly connected to the inner wall of the gland body (1), the second reinforcing rib (12) is fixedly connected to the inner wall of the gland body (1), a fiber layer (10) is arranged inside the gland body (1), and a composite layer (11) is arranged inside the gland body (1).
  3. 3. The plastic gland structure sealed by the machine tool chuck according to claim 1, wherein the outer wall of the second sealing ring (4) is slidably connected to the inner wall of the gland body (1), and the second sealing ring (4) is used for sealing the gland body (1).
  4. 4. The plastic gland structure sealed by the machine tool chuck according to claim 1, wherein one end of the spring (6) is fixedly connected to the outer wall of the sliding plate (5), and the other end of the spring (6) is fixedly connected to the inner wall of the second sealing ring (4).
  5. 5. The plastic gland structure sealed by the chuck of the machine tool according to claim 1, wherein the outer wall of the sliding rod (7) is slidably connected to the inner wall of the second sealing ring (4), and the spring (6) is used for guiding the movement of the sliding plate (5).
  6. 6. A plastic gland structure for machine tool chuck seal as claimed in claim 2, wherein the first reinforcing rib (9) and the second reinforcing rib (12) form a triangle shape.
  7. 7. A machine tool chuck sealed plastic gland structure according to claim 2, characterized in that the fibre layer (10) consists of glass fibres, the fibre layer (10) being used for cushioning the gland body (1).
  8. 8. A machine tool chuck sealed plastic gland structure according to claim 2, wherein the composite layer (11) is made of stainless steel, and the composite layer (11) is used for reinforcing the gland body (1).

Description

Plastic gland structure for machine tool chuck sealing Technical Field The utility model relates to the technical field of plastic gland, in particular to a plastic gland structure for machine tool chuck sealing. Background The machine tool chuck plays a key role in the field of machining, and as an important part for clamping a workpiece, the sealing performance and the structural strength of the machine tool chuck directly influence the machining precision and the service life of equipment. The plastic gland structure is commonly used for sealing protection of the machine tool chuck due to the advantages of low cost, corrosion resistance and the like, and the performance requirement on the machine tool chuck for sealing the plastic gland is increasingly improved along with the development of the machining industry to the high-precision and high-efficiency directions. In the prior art, a common machine tool chuck is used for sealing a plastic gland, and a single sealing ring structure is adopted, so that the sealing is realized by directly fixing the sealing ring on the inner wall of the gland and tightly attaching the elastic deformation of the sealing ring to the surface of the chuck. The structure mainly depends on the elasticity of the sealing ring and the pretightening force during installation to ensure the sealing effect, and once the sealing effect is affected by vibration, pressure fluctuation and other factors in the running process of a machine tool, the sealing contact area and pressure between the sealing ring and the chuck are easy to change, so that the sealing performance is reduced. However, the single sealing ring structure has obvious defects when dealing with complex and changeable working conditions during the operation of the machine tool. Because the lathe can produce continuous vibrations in the course of working, and the change of processing load can lead to chuck inside pressure fluctuation, and single sealing washer is difficult to dynamic adjustment sealing state, appears the gap easily, causes impurity invasion chuck inside such as external cutting fluid, iron fillings, can not only aggravate the wearing and tearing of chuck part, can also cause chuck precision decline, problem such as operation trouble, and then increase equipment maintenance cost, influence the steady operation and the machining efficiency of lathe. Disclosure of utility model In order to make up for the defects, the utility model provides a plastic gland structure for sealing a chuck of a machine tool, which aims to solve the problems that the chuck is difficult to dynamically adjust a sealing state and gaps are easy to occur due to continuous vibration generated in the machining process of the machine tool and pressure fluctuation in the chuck caused by the change of machining load. In order to achieve the aim, the utility model provides the technical scheme that the plastic gland structure for machine tool chuck sealing comprises a gland body, wherein a mounting hole is formed in the gland body, and a sealing assembly is arranged in the gland body; The sealing assembly comprises a first sealing ring, the outer wall of the first sealing ring is fixedly connected with the inner wall of the gland body, the inner wall of the gland body is fixedly connected with a sliding plate, the outer wall of the sliding plate is slidably connected with a second sealing ring, the outer wall of the sliding plate is fixedly connected with a sliding rod, a spring is sleeved on the outer wall of the sliding rod, and a sliding groove is formed in the second sealing ring. Further, gland body inner wall fixedly connected with strengthening rib one, gland body inner wall fixedly connected with strengthening rib two, gland body inside is provided with the fibrous layer, gland body inside is provided with the composite bed. Further, the outer wall of the sealing ring is slidably connected to the inner wall of the gland body, and the second sealing ring is used for sealing the gland body. Further, one end of the spring is fixedly connected to the outer wall of the sliding plate, and the other end of the spring is fixedly connected to the second inner wall of the sealing ring. Further, the outer wall of the sliding rod is slidably connected to the second inner wall of the sealing ring, and the spring is used for guiding movement of the sliding plate. Further, the first reinforcing rib and the second reinforcing rib form a triangle shape. Further, the fiber layer is composed of glass fibers and is used for buffering the gland body. Further, the composite layer is composed of stainless steel and is used for reinforcing the gland body. The utility model has the following beneficial effects: 1. According to the self-adaptive sealing device, the first sealing ring is fixed on the inner wall of the gland body to provide guarantee for primary sealing, the second sealing ring is in ingenious matching with the sliding plate, the sliding rod and