A rotary oil circuit distribution valve for a four-axis machining center clamp

Abstract

The utility model discloses a rotary oil line distribution valve for four -axis machining center clamp belongs to four -axis processing field, including the shell, the inside of shell is provided with positioning assembly, and the bottom of positioning assembly is provided with and is located the inside of shell is provided with distribution assembly, positioning assembly includes the fixed plate of fixed mounting on the upper end of shell, and the both ends of fixed plate all are rotatively connected with two and the first connecting rod that is symmetrically arranged, through the adaptation design of connecting convex pipe and connecting hole, can realize the nimble stacking of multiple oil distribution valve, can increase and decrease the number of oil distribution valve according to the actual oil supply demand of four -axis machining center clamp, and the adaptability is strong, reduces the space occupancy, and positioning assembly is driven the close joint of sealing cover and the connecting convex pipe of oil distribution valve through connecting rod structure, and the stable extrusion positioning is formed to distribution assembly with shell, effectively prevents hydraulic oil from spilling from the connecting part, improves the sealing performance of overall oil line, and guarantees the stability of oil supply process.

Description

Technical Field

[0001] This utility model relates to the field of four-axis machining technology, specifically to a rotary oil circuit distribution valve for a four-axis machining center fixture. Background Technology

[0002] Four-axis machining center fixtures are devices used to clamp and position workpieces on a four-axis machining center. Hydraulic fixtures utilize the pressure generated by a hydraulic system to clamp and release workpieces, and have advantages such as large clamping force, rapid action, and stable and reliable clamping. They are suitable for mass production and machining of workpieces with high clamping force requirements.

[0003] However, four-axis machining centers often need to process multiple workpieces simultaneously or process multiple parts of a workpiece. When distributing rotary hydraulic circuits, more rotary hydraulic circuit distribution valves may be needed. Most of these rotary hydraulic circuit distribution valves are independent and not easy to stack. Multiple distribution valves can only be placed side by side, which takes up space. In addition, during use, rotary hydraulic circuit distribution valves are easily displaced by external influences.

[0004] Therefore, a rotary hydraulic distribution valve for four-axis machining center fixtures is needed. Utility Model Content

[0005] This utility model addresses the technical problems existing in the prior art by providing a rotary oil circuit distribution valve for a four-axis machining center fixture.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A rotary oil circuit distribution valve for a four-axis machining center fixture includes a housing, a positioning component is provided inside the housing, and a distribution component is provided at the bottom of the positioning component and located inside the housing; the positioning component includes a fixing plate fixedly installed on the upper end of the housing, two first connecting rods symmetrically arranged are rotatably connected to the left and right ends of the fixing plate, a second connecting rod is rotatably connected to the bottom end of the first connecting rod, a third connecting rod is rotatably connected to the bottom end of the second connecting rod, a lifting plate is rotatably connected to the bottom end of the third connecting rod, and a sealing cover is fixedly connected to the bottom end of the lifting plate; the two second connecting rods are arranged in a cross configuration; the distribution component includes multiple oil distribution valves stacked vertically, a connecting protrusion adapted to the sealing cover is fixedly connected to the top end of each oil distribution valve, and a connecting hole is opened at the bottom end of each oil distribution valve, the connecting hole being adapted to the connecting protrusion.

[0007] Furthermore, a screw is threaded to the top of the fixing plate, and the top of the screw passes through the top of the outer shell and is fixedly connected to a knob.

[0008] Furthermore, the bottom end of the screw passes through the bottom end of the fixed plate and is rotatably connected to a bushing, and the bottom end of the bushing is fixedly connected to a transmission plate.

[0009] Furthermore, a rotating shaft is rotatably connected at the intersection of the two second connecting rods, and the inner end of the rotating shaft is fixedly connected to the transmission plate.

[0010] Furthermore, the bottom end of the oil separator valve is detachably connected to a sealing block that is threadedly connected to the outer casing, and the bottom end of the sealing block penetrates through the bottom end of the outer casing.

[0011] Furthermore, the rear end of the oil distribution valve is connected to a return oil valve.

[0012] Furthermore, the oil distribution valve includes a valve body located at the front end of the return oil valve, and the front end of the valve body is connected to multiple oil delivery pipes that are equidistant from each other, and a solenoid valve is provided on the outside of the oil delivery pipes.

[0013] The beneficial effects of this utility model are as follows: Through the adaptive design of the connecting convex tube and the connecting hole, multiple oil distribution valves can be flexibly stacked. The number of oil distribution valves can be increased or decreased according to the actual oil supply needs of the four-axis machining center fixture. It has strong adaptability and reduces space occupation. The positioning component drives the sealing cover to be tightly locked with the connecting convex tube of the oil distribution valve through the linkage structure. Together with the outer shell, it forms a stable compression positioning of the distribution component, effectively preventing hydraulic oil from overflowing from the connection part, improving the sealing performance of the overall oil circuit, and ensuring the stability of the oil supply process. Attached Figure Description

[0014] Figure 1 This is an overall drawing of the present utility model;

[0015] Figure 2 This is an overall exploded view of the present invention;

[0016] Figure 3 This is a diagram of the positioning component of this utility model;

[0017] Figure 4 This is a diagram showing the component allocation of this utility model;

[0018] Figure 5 This is a cross-sectional view of the screw and bushing of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Outer shell; 2. Positioning assembly; 3. Distribution assembly; 201. Fixing plate; 202. First connecting rod; 203. Second connecting rod; 204. Third connecting rod; 205. Lifting plate; 206. Transmission plate; 207. Rotating shaft; 208. Bushing; 209. Screw; 210. Knob; 211. Sealing cover; 301. Oil distribution valve; 302. Oil return valve; 303. Sealing block; 304. Connecting convex tube. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0024] Please see Figures 3 to 5 A rotary oil circuit distribution valve for a four-axis machining center fixture includes a housing 1. A positioning component 2 is disposed inside the housing 1. A distribution component 3 is disposed at the bottom of the positioning component 2 and located inside the housing 1. The positioning component 2 includes a fixing plate 201 fixedly mounted on the upper end of the housing 1. Two first connecting rods 202, symmetrically arranged, are rotatably connected to both ends of the fixing plate 201. A second connecting rod 203 is rotatably connected to the bottom end of the first connecting rod 202. A third connecting rod 204 is rotatably connected to the bottom end of the second connecting rod 203. A lifting plate 205 is rotatably connected to the bottom end of the third connecting rod 204. A sealing cover 211 is fixedly connected to the bottom end of the lifting plate 205. The two second connecting rods 203 are arranged in a cross configuration. The distribution component 3 includes multiple oil distribution valves 301 stacked vertically. A connecting protrusion 304, adapted to the sealing cover 211, is fixedly connected to the top of each oil distribution valve 301. A connecting hole is provided at the bottom end of each oil distribution valve 301, and the connecting hole is adapted to the connecting protrusion 304.

[0025] Multiple oil distribution valves 301 can be stacked arbitrarily by connecting the convex tube 304 and the connecting hole. The number of oil distribution valves 301 can be increased or decreased according to usage requirements. Furthermore, if one of the oil distribution valves 301 in the distribution assembly 3 is damaged, only the damaged part of the oil distribution valve 301 needs to be replaced. The upper oil distribution valve 301 can also be connected to the entire positioning assembly 2 via the sealing cap 211, allowing the positioning assembly 2 to better position the entire distribution assembly 3, preventing displacement or tilting of the distribution assembly 3. It also prevents hydraulic oil from overflowing from the connecting convex tube 304 during use. When positioning the distribution assembly 3, the first connecting rod 202 is adjusted... The angles of the second link 203 and the third link 204 allow the lifting plate 205 to move up or down, so that the sealing cover 211 at the bottom of the lifting plate 205 can engage with the connecting protrusion 304 on the oil distribution valve 301 at the top, thereby squeezing the entire distribution assembly 3 and stabilizing the position of the distribution assembly 3 in conjunction with the outer shell 1. When the distribution assembly 3 needs to be replaced or maintained, simply lift the lifting plate 205 upward by changing the angles of the first link 202, the second link 203 and the third link 204 to separate the sealing cover 211 from the connecting protrusion 304 on the oil distribution valve 301 at the top, at which point the distribution assembly 3 can be replaced or maintained.

[0026] The top of the fixing plate 201 is threaded with a screw 209, and the top of the screw 209 passes through the top of the outer shell 1 and is fixedly connected with a knob 210;

[0027] Rotating the knob 210 drives the screw 209 to rotate, thereby providing power input for the operation of the positioning component 2.

[0028] The bottom end of the screw 209 passes through the bottom end of the fixed plate 201 and is rotatably connected to the bushing 208. The bottom end of the bushing 208 is fixedly connected to the transmission plate 206.

[0029] By rotating the screw 209, the screw 209 can move up or down, thereby driving the bushing 208 to move, thus realizing the transmission of power.

[0030] A rotating shaft 207 is rotatably connected at the intersection of the two second connecting rods 203, and the inner end of the rotating shaft 207 is fixedly connected to the transmission plate 206.

[0031] When the transmission plate 206 moves, it can drive the rotating shaft 207 to move, thereby causing the cross-connected second link 203 to change angle, and transmit the movement of the transmission plate 206 to the first link 202, the second link 203 and the third link 204, thereby realizing the linkage between the first link 202, the second link 203 and the third link 204.

[0032] The bottom end of the oil separator valve 301 is detachably connected to a sealing block 303 that is threadedly connected to the outer casing 1, and the bottom end of the sealing block 303 penetrates the bottom end of the outer casing 1.

[0033] With its detachable and threaded connection, the sealing block 303 can seal the bottom of the oil distributor 301, while facilitating the installation, disassembly and maintenance of the oil distributor 301, thus ensuring the sealing and maintainability of the distribution assembly 3.

[0034] The rear end of the oil distributor valve 301 is connected to the return oil valve 302;

[0035] By setting the return valve 302, the oil circuit return function can be realized, so that the hydraulic oil passing through the oil distributor valve 301 can flow back into the system smoothly, complete the oil circuit circulation, and ensure that the entire oil circuit system can operate normally, so that the reader can understand the structure of the oil circuit return.

[0036] Oil distribution valve 301 includes a valve body located at the front end of return valve 302. The front end of the valve body is connected to multiple oil delivery pipes that are equidistant from each other. Solenoid valves are installed on the outside of the oil delivery pipes.

[0037] The oil supply pipe is opened and closed by a solenoid valve, and the return oil enters different passages through the valve body to meet the oil supply needs of different parts of the four-axis machining center fixture, thereby improving the applicability and functionality of the device.

[0038] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0039] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rotary oil circuit distribution valve for a four-axis machining center fixture, characterized in that, Includes a housing (1), inside which a positioning component (2) is provided, and at the bottom of the positioning component (2) and inside the housing (1) a dispensing component (3) is provided. The positioning component (2) includes a fixing plate (201) fixedly installed on the upper end of the outer shell (1). The left and right ends of the fixing plate (201) are rotatably connected to two first connecting rods (202) arranged symmetrically. The bottom end of the first connecting rod (202) is rotatably connected to a second connecting rod (203). The bottom end of the second connecting rod (203) is rotatably connected to a third connecting rod (204). The bottom end of the third connecting rod (204) is rotatably connected to a lifting plate (205). The bottom end of the lifting plate (205) is fixedly connected to a sealing cover (211). The two second connecting rods (203) are arranged in a cross pattern. The distribution component (3) includes multiple oil distribution valves (301) stacked vertically. The top of each oil distribution valve (301) is fixedly connected to a connecting protrusion (304) that is adapted to the sealing cap (211). The bottom of each oil distribution valve (301) has a connecting hole that is adapted to the connecting protrusion (304).

2. A rotary oil circuit distribution valve for a four-axis machining center fixture according to claim 1, characterized in that, The top end of the fixing plate (201) is threaded with a screw (209), and the top end of the screw (209) passes through the top end of the outer shell (1) and is fixedly connected with a knob (210).

3. A rotary oil circuit distribution valve for a four-axis machining center fixture according to claim 2, characterized in that, The bottom end of the screw (209) passes through the bottom end of the fixing plate (201) and is rotatably connected to the bushing (208), and the bottom end of the bushing (208) is fixedly connected to the transmission plate (206).

4. A rotary oil circuit distribution valve for a four-axis machining center fixture according to claim 1, characterized in that, A rotating shaft (207) is rotatably connected at the intersection of the two second connecting rods (203), and the inner end of the rotating shaft (207) is fixedly connected to the transmission plate (206).

5. A rotary oil circuit distribution valve for a four-axis machining center fixture according to claim 1, characterized in that, The bottom end of the oil separator valve (301) is detachably connected to a sealing block (303) that is threadedly connected to the outer shell (1), and the bottom end of the sealing block (303) penetrates the bottom end of the outer shell (1).

6. A rotary oil circuit distribution valve for a four-axis machining center fixture according to claim 5, characterized in that, The oil distribution valve (301) is connected to a return oil valve (302) at its rear end.

7. A rotary oil circuit distribution valve for a four-axis machining center fixture according to claim 6, characterized in that, The oil distribution valve (301) includes a valve body located at the front end of the return valve (302). The front end of the valve body is connected to multiple oil delivery pipes that are equidistant from each other. A solenoid valve is provided on the outside of the oil delivery pipes.

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