Hydraulic bladder device

Abstract

The utility model discloses a hydraulic capsule formula device belongs to numerical control rotary table equipment technical field, it includes cylinder body, the top center of cylinder body is provided with the screw hole that passes through, the inside of cylinder body is equipped with the capsule formula body, the top of capsule formula body is fixedly connected with the flange through hole outer screw, the flange through hole outer screw is with the screw hole thread adaptation, the lower surface fixed mounting of capsule formula body has the friction piece, the lower surface of friction piece is fixedly connected with the brake pad. The utility model discloses through being provided with cylinder body, capsule formula body, friction piece, brake pad, capsule formula body is even after oil filling and expands, realizes surface contact locking through the combination of friction piece and brake pad, avoids stress concentration, reduces the wear and tear to the surface of rotating disc, guarantees long -term use accuracy, through being provided with hydraulic interface, O type sealing washer, flange through hole outer screw, simple and compact structure, reduces the space occupied, is convenient for dismounting maintenance, and the anti -pollution ability is strong.

Description

Technical Field

[0001] This utility model belongs to the technical field of CNC rotary table equipment, specifically relating to a hydraulic bladder device. Background Technology

[0002] A CNC rotary table is an important machine tool accessory, mainly used in machining centers and CNC boring and milling machines. The application of a CNC rotary table provides the machine tool with a rotary coordinate system. Driven by the fourth and fifth axes, the rotary table can perform equal, unequal, or continuous rotary machining, making it possible to machine complex curved surfaces and expanding the machining range of the machine tool. It is mainly used for machining curved surfaces or arcs of parts.

[0003] Existing CNC rotary tables mostly use hydraulic devices to lock the turntable. These devices often employ a rigid cylinder and piston structure, but this structure has the following drawbacks:

[0004] 1. It is large and heavy, taking up workspace and affecting the operation of staff; 2. It is sensitive to foreign objects and has poor resistance to contamination, which affects the service life of the equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a hydraulic bladder device.

[0006] The technical solution adopted to solve the above technical problems is: a hydraulic bladder device, including a cylinder body, a threaded hole through the center of the top of the cylinder body, a bladder body inside the cylinder body, an external thread with a flanged through hole fixed to the top of the bladder body, the external thread with the flanged through hole being adapted to the threaded hole, a friction plate fixedly installed on the lower surface of the bladder body, and a brake plate fixedly connected to the lower surface of the friction plate.

[0007] Furthermore, the top of the hydraulic interface is provided with a storage groove, and an O-ring is fitted onto the inner wall of the storage groove.

[0008] By employing the above technical solutions, combined with the threaded connection design and external oil supply mechanism, hydraulic oil leakage can be effectively prevented, system pressure can be stabilized, and the reliability and safety of the device can be improved.

[0009] Furthermore, the cylinder body is a rigid support body, and the shape of the bladder-like body is adapted to the inner cavity of the cylinder body.

[0010] The above technical solution results in a compact overall structure, with a rigid cylinder providing stable support, and a flexible bladder design that evenly distributes pressure and extends the device's service life.

[0011] Furthermore, the capsule-shaped body is made of high-pressure resistant rubber material.

[0012] The above technical solution can withstand high-pressure hydraulic environments and avoid the risk of rupture.

[0013] Furthermore, when the bladder-type body is not oiled, the gap between the lower surface of the friction plate and the surface of the CNC turntable is 0.1mm to 0.2mm.

[0014] Through the above technical solution, the oil-filled bladder expands rapidly, pushing the friction plate and brake plate to quickly clamp the turntable, achieving high-precision positioning and braking, reducing idle stroke, and improving response speed.

[0015] Furthermore, the outer side of the brake pad is vertically threaded with an internal hexagonal bolt.

[0016] The above technical solution allows for easy tightening of the flanged through-hole external thread and threaded hole connection using an internal hex bolt and internal hex wrench, improving the stability and compactness of the connection between the bladder body and the hydraulic interface.

[0017] The beneficial effects of this utility model are as follows: (1) Through the cylinder, bladder, friction plate and brake plate, the bladder expands evenly after being filled with oil. The friction plate and brake plate are combined to achieve surface contact locking, avoid stress concentration, reduce wear on the turntable surface and ensure long-term accuracy; (2) Through the hydraulic interface, O-ring seal and external thread with flange through hole, the O-ring seal improves the sealing performance of the connection with the oil supply mechanism. The bladder is connected to the cylinder through the external thread with flange through hole. The structure is simple and compact, reduces the space occupied, facilitates disassembly and maintenance and has strong anti-pollution ability. Attached Figure Description

[0018] Figure 1 This is a perspective view of a hydraulic bladder device according to this utility model;

[0019] Figure 2 This is a cross-sectional view of a hydraulic bladder device according to this utility model;

[0020] Figure 3 This is a perspective view of the bladder-type body of a hydraulic bladder device according to this utility model;

[0021] Figure 4 yes Figure 2 Enlarged view of point A.

[0022] Reference numerals: 1. Cylinder body; 2. Hydraulic interface; 3. Bladder body; 4. Friction plate; 5. Brake plate; 6. O-ring seal; 201. Receiving groove; 202. Threaded hole; 301. External thread with flange through hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] like Figures 1-4 As shown, a hydraulic bladder device of this embodiment includes a cylinder body 1. A threaded hole 202 is provided through the center of the top of the cylinder body 1. A bladder body 3 is provided inside the cylinder body 1. The bladder body 3 is made of high-pressure resistant rubber material, which can withstand high-pressure hydraulic environment and avoid the risk of rupture. An external thread 301 with a flanged through hole is fixedly connected to the top of the bladder body 3. The external thread 301 with the flanged through hole is threaded to the threaded hole 202. The external thread 301 with the flanged through hole is set to a flanged through hole external thread ZG1 / 8, and the threaded hole 202 is set to a threaded hole ZG1 / 8. The upper part of the threaded hole 202 is connected to the external device. The oil supply mechanism is connected, and a friction plate 4 is fixedly installed on the lower surface of the bladder body 3. A brake plate 5 is fixedly connected to the lower surface of the friction plate 4. The brake plate 5 is made of copper-based powder metallurgy material, which can quickly dissipate the heat generated by braking, avoid overheating leading to performance degradation, reduce wear, and extend service life. At the same time, the surface is phosphated and chrome-plated to enhance corrosion resistance and friction stability. During operation, the bladder body 3 expands evenly after being filled with oil. The friction plate 4 and the brake plate 5 are combined to achieve surface contact locking, avoid stress concentration, reduce wear on the turntable surface, and ensure long-term accuracy.

[0025] The top of the hydraulic interface 2 is provided with a storage groove 201, and an O-ring seal 6 is fitted on the inner side wall of the storage groove 201. It is connected to an external oil supply mechanism in conjunction with the threaded connection design, which effectively prevents hydraulic oil leakage, ensures stable system pressure, and improves the reliability and safety of the device.

[0026] The cylinder 1 is a rigid support body, and the shape of the bladder body 3 is adapted to the inner cavity of the cylinder 1. The overall structure is compact. The rigid cylinder 1 provides stable support, and combined with the flexible bladder design, the pressure is evenly distributed, extending the service life of the device.

[0027] When the bladder body 3 is not filled with oil, the gap between the lower surface of the friction plate 4 and the surface of the CNC turntable is 0.1mm to 0.2mm. After being filled with oil, the bladder body 3 expands rapidly, pushing the friction plate 4 and the brake plate 5 to quickly clamp the turntable, achieving high-precision positioning and braking, reducing idle stroke, and improving response speed. The bladder body 3 can absorb vibration and shock, enhance system stability, and at the same time ensure that the bladder body 3 will not expand beyond its limit and be damaged.

[0028] The outer side of the brake plate 5 is vertically threaded with an internal hex bolt. The hex bolt, together with the internal hex wrench, facilitates tightening when the external thread 301 with the flange through hole is connected to the threaded hole 202, thereby improving the stability and compactness of the connection between the bladder body 3 and the hydraulic interface 2.

[0029] The working principle of this embodiment is as follows: In use, the bladder body 3 is installed in the cavity of the cylinder body 1. The external thread 301 of the flanged through hole of the bladder body 3 is aligned with the threaded hole 202 of the cylinder body 1. The bladder body 3 is rotated and tightened by using an Allen wrench and Allen bolts. Then, the oil outlet end of the external oil supply mechanism is threadedly connected to the upper threaded hole 202 of the hydraulic interface 2. After connection, the oil supply mechanism and the bladder body 3 are connected. Next, the cylinder body is installed on the turntable body. When the turntable needs to be braked urgently, the oil supply mechanism supplies oil to the bladder body 3 through the cylinder body 1. At this time, the bladder body 3 pushes the friction plate 4 and the brake plate 5 to move. The brake plate 5 quickly clamps the turntable to achieve high-precision positioning and braking. At the same time, the bladder body 3 absorbs vibration and impact, enhances system stability, and the overall structure of the device is simple, the size is small, reducing the occupation of working space. It has good sealing performance, strong anti-pollution ability, and improves the service life of the device.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A hydraulic bladder device, comprising a cylinder (1), characterized in that: The top of the cylinder (1) is provided with a hydraulic interface (2), and the top center of the cylinder (1) is provided with a threaded hole (202). The inside of the cylinder (1) is provided with a bladder-type body (3). The top of the bladder-type body (3) is fixedly connected with an external thread (301) with a flanged through hole. The external thread (301) with the flanged through hole is threadedly matched with the threaded hole (202). A friction plate (4) is fixedly installed on the lower surface of the bladder-type body (3), and a brake plate (5) is fixedly connected to the lower surface of the friction plate (4).

2. The hydraulic bladder device according to claim 1, characterized in that, The top of the hydraulic interface (2) is provided with a storage groove (201), and an O-ring (6) is fitted on the inner side wall of the storage groove (201).

3. The hydraulic bladder device according to claim 1, characterized in that, The cylinder (1) is a rigid support body, and the shape of the bladder-type body (3) is adapted to the inner cavity of the cylinder (1).

4. A hydraulic bladder device according to claim 1, characterized in that, The capsule (3) is made of high-pressure resistant rubber.

5. A hydraulic bladder device according to claim 1, characterized in that, When the bladder (3) is not oiled, the gap between the lower surface of the friction plate (4) and the surface of the CNC turntable is 0.1mm to 0.2mm.

6. A hydraulic bladder device according to claim 1, characterized in that, The outer side of the brake pad (5) is vertically threaded with an internal hexagonal bolt.

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