Novel clamping body device with oil leakage prevention structure
By using Glyd ring sealing and detection sleeve monitoring in the clamping device of CNC vertical milling and turning machines, the problem of oil leakage in traditional clamping bodies has been solved, achieving improved sealing performance of the clamping body and stability of tool clamping, thereby improving machining accuracy and reducing costs.
Patent Information
- Application Number
- CN202423174643.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Traditional clamping bodies suffer from oil leakage during CNC vertical milling and turning, resulting in hydraulic oil waste, pollution of the machining environment, and impact on tool holding stability and machining accuracy.
A novel oil-leakage-proof clamping device is designed, which uses a Glyd ring to seal the gap between the piston and the clamping body. The piston displacement is monitored by a detection sleeve and an adjustment shim to ensure the sealing state. The sealing performance is detected by a photoelectric switch and the shim thickness is adjusted to restore the clamping force.
It effectively prevents oil leakage, improves tool holding stability and machining accuracy, reduces production and usage costs, and ensures the reliability and safety of the machining process.
Smart Images

Figure CN223629949U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a novel leakproof structure chucking body device belongs to mechanical technical field. BACKGROUND
[0002] In the processing of numerical control vertical turning and milling machine, the chucking body as an important supporting part of the tool, its performance directly affects the processing quality and efficiency. And the traditional chucking body due to the deficiency of structure design, often exist the problem of oil leakage, will lead to hydraulic oil waste, also will pollute the processing environment and workpiece, even affect the clamping stability and processing precision of the tool. SUMMARY
[0003] In order to overcome the deficiency of prior art, the utility model provides a novel leakproof structure chucking body device, the device can simply and effectively solve the problem of oil leakage in the use process of tool clamping device in the processing of machine tool.
[0004] The utility model discloses a novel leakproof structure chucking body device, including chucking body main part, piston, oil cylinder cover, detection cover, adjusting pad and gley ring, the quantity of piston, oil cylinder cover, detection cover, adjusting pad and gley ring is four, and the both sides of chucking body main part are provided with two interval pistons, and the piston of both sides is symmetrically arranged;Chuck body main part is equipped with the chamber that can hold piston, and the piston is installed in four internal cavities of chuck body main part respectively;Piston and chuck body main part all are provided with gley ring, and oil cylinder cover is fixed on the outside of respective side piston respectively, and detection cover is installed on the tail of respective side piston respectively, and adjusting pad is installed between respective side detection cover and piston.
[0005] The utility model has the advantages of solving the problem of oil leakage of traditional chucking body, improving the stability of tool clamping and processing precision, realizing the monitoring and adjustment of piston displacement and sealing state through the setting of detection cover and adjusting pad, ensuring the reliability and safety of processing process, simple structure, easy to manufacture and maintain, reducing production cost and use cost, suitable for numerical control vertical lathe and machining center and other high-precision machining equipment. BRIEF DESCRIPTION OF DRAWINGS
[0006] The utility model is further explained below in connection with the drawings and specific embodiment.
[0007] Figure 1 It is the structure schematic diagram of the utility model.
[0008] Figure 2 It is the plan view of the utility model.
[0009] Mark in drawing:
[0010] 1. Clamping body body, 2. Piston, 3. Cylinder head, 4. Detection sleeve, 5. Adjusting shim, 6. Glyd ring. Detailed Implementation
[0011] like Figure 1 As shown in Figure 2, a novel oil-leakage-proof clamping device includes a clamping body 1, pistons 2, cylinder heads 3, detection sleeves 4, adjusting shims 5, and Glyd rings 6. The number of pistons 2, cylinder heads 3, detection sleeves 4, adjusting shims 5, and Glyd rings 6 are all four. Two spaced-apart pistons 2 are arranged symmetrically on both sides of the clamping body 1. The clamping body 1 has internal chambers capable of accommodating the pistons 2, which are respectively installed in the four internal chambers of the clamping body 1. Glyd rings 6 are provided between the pistons 2 and the clamping body 1. Cylinder heads 3 are respectively fixed to the outside of their respective pistons 2. Detection sleeves 4 are respectively installed at the tail of their respective pistons 2. Adjusting shims 5 are respectively installed between the detection sleeves 4 and the pistons 2 on their respective sides.
[0012] When the machine tool is ready to hold the tool, the piston 2, under the action of the hydraulic passage on the left, begins to move towards the center of the clamping body 1, tightly holding the tool in the cavity of the clamping body 1. At the same time, due to the anti-torsional sealing performance of the Glyd ring 6, even during cutting or milling, it can prevent liquid leakage caused by the deformation of the piston 2. The piston 2 and the clamping body 1 are sealed by the Glyd ring 6. The position of the detection sleeve 4 is detected by a photoelectric switch to monitor the sealing status of the piston 2, ensuring that the clamping device always maintains good sealing performance and tool holding stability. If any abnormality is found, such as tool loosening, the tool holding force of the clamping device can be restored by adjusting the thickness of the adjusting shim 5.
[0013] During the use of this device, the CNC system controls the flow of hydraulic oil, which pushes the piston 2 to move towards the center of the clamping body 1, tightly clamping the tool in the central cavity of the clamping body 1. Thanks to the excellent sealing performance of the Glyd ring 6, even during cutting or milling, the piston 2 can be kept from loosening, ensuring the reliability of the clamping device.
Claims
1. A novel oil leakage prevention structure chucking body device, characterized by: Including clamping body main part (1), piston (2), oil cylinder cover (3), detection sleeve (4), adjusting pad (5) and gasket (6), the number of piston (2), oil cylinder cover (3), detection sleeve (4), adjusting pad (5) and gasket (6) are four, both sides of clamping body main part (1) are provided with two interval pistons (2), the two sides of piston (2) are symmetrically arranged;Clamping body main part (1) is internally provided with the cavity capable of accommodating piston (2), and piston (2) is respectively installed in the four internal cavities of clamping body main part (1);Piston (2) and clamping body main part (1) are provided with gasket (6) between, oil cylinder cover (3) is respectively fixed on the outside of each side piston (2), detection sleeve (4) is respectively installed on the tail of each side piston (2), adjusting pad (5) is respectively installed between each side detection sleeve (4) and piston (2).