Valve body positioning tool

Abstract

The utility model relates to the technical field of multi-face machining of complex part valve bodies, and discloses a valve body positioning tool which is characterized in that one side of the top end of an assembly plate is fixedly connected with a main positioning plate, four sets of positioning mandrel mechanisms are installed on the main positioning plate, and the other side of the top end of the assembly plate is fixedly connected with a pressing positioning plate. Four pressing heads corresponding to the four sets of positioning mandrel mechanisms are installed on the pressing positioning plate, and a valve part is arranged between each set of positioning mandrel mechanism and one pressing head. According to the utility model, each group of second positioning mandrels are used for floating positioning and play a role in auxiliary positioning, one end of each first positioning mandrel corresponding to the pressing head is a conical surface, and when the pressing head presses a product hole, the conical surface clamps an inner hole of a part and limits the movement of the part in six directions together with the second positioning mandrels and the pressing head; when valve bodies of different sizes need to be positioned, the auxiliary positioning plate can be well applied, and meanwhile the auxiliary positioning plate plays a role in auxiliary supporting when the upper surface and the inner hole of a part are machined.

Description

Technical Field

[0001] This utility model relates to the field of multi-faceted machining technology for complex valve bodies, specifically a valve body positioning fixture. Background Technology

[0002] Complex valve bodies typically have irregular shapes and multiple machined surfaces. For example, some valve bodies have holes, grooves, and curved surfaces of various sizes and locations. During machining, it is crucial to ensure that each machined surface is precisely positioned; otherwise, problems such as dimensional deviations and shape errors will occur. Due to the complex positional relationships between the various machined surfaces, high-precision and high-reliability positioning fixtures are required.

[0003] Existing valve body positioning fixtures still have the following problems when in use: Many valve body positioning fixtures are designed for specific models or sizes of valve bodies. For example, positioning fixtures used for large hydraulic valve bodies have a limiting space adapted to a specific size of hydraulic valve body, and cannot be well applied when positioning valve bodies of different sizes is required. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a valve body positioning fixture, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a valve body positioning fixture, including an assembly plate, a main positioning plate fixedly connected to one side of the top of the assembly plate, four sets of positioning spindle mechanisms installed on the main positioning plate, a clamping positioning plate fixedly connected to the other side of the top of the assembly plate, four clamping heads installed on the clamping positioning plate corresponding to the four sets of positioning spindle mechanisms, and a valve body part disposed between each set of positioning spindle mechanisms and a clamping head.

[0008] As a further embodiment of this utility model: the positioning mandrel mechanism includes a first positioning mandrel and a second positioning mandrel arranged symmetrically front to back. The second positioning mandrel is floating and can be positioned by floating, playing an auxiliary positioning role. The other end of the first positioning mandrel is a conical surface. When the clamping head clamps the product hole, the conical surface clamps the inner hole of the part, restricting the movement of the part in six directions together with the second positioning mandrel and the clamping head. The top center of the assembly plate is fixedly connected with four auxiliary positioning plates at equal intervals from front to back. The top of each auxiliary positioning plate slides and supports the valve body part on its corresponding side, playing an auxiliary support role when processing the upper surface and inner hole of the part.

[0009] As a further embodiment of this utility model: A mandrel positioning sleeve is installed on the outer side of both the first and second positioning mandrels. A valve body component is connected and installed on the other side of the first and second positioning mandrels. The mandrel positioning sleeve on the outer side of the first positioning mandrel is fixedly installed inside the main positioning plate, and the mandrel positioning sleeve on the outer side of the second positioning mandrel is floatingly installed inside the main positioning plate. A pressing positioning sleeve is slidably installed on the outer side of the pressing head. The pressing positioning sleeve is fixedly installed on the pressing positioning plate. The pressing positioning sleeve encloses the entire pressing head, facilitating the fixing, correction, and pressing of the pressing head. Both the mandrel positioning sleeve and the pressing positioning sleeve are T-shaped designs, which better fix the positioning mandrel and the pressing head to the main positioning plate and the pressing positioning plate, preventing the mandrel and the pressing head from directly contacting the positioning plate and avoiding slippage and wear of the parts.

[0010] As a further improvement of this utility model: a cylinder is fixedly installed on the other side of the pressing and positioning plate at the four pressing and positioning sleeves, and the telescopic end of the cylinder telescopic shaft is fixedly connected to the pressing head on its corresponding side.

[0011] As a further embodiment of this utility model: the bottom end of the assembly plate is provided with a base plate, and the top end of the base plate is provided with four assembly slots at equal intervals in a horizontal manner. The assembly plate is fixedly installed in the two assembly slots in the middle.

[0012] As a further embodiment of this utility model: a plurality of first reinforcing ribs are fixedly connected between one end of the main positioning plate and the top end of the assembly plate, and a plurality of second reinforcing ribs are fixedly connected between the other end of the pressing positioning plate and the top end of the assembly plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. In this utility model, four sets of positioning mandrels are installed on the main positioning plate. Each set of positioning mandrels includes a first positioning mandrel and a second positioning mandrel. They can cooperate with the four clamping heads installed on the positioning plate to position and install a total of four parts, so that the positioning and fixing of four parts can be performed simultaneously.

[0015] 2. In this utility model, each set of second positioning mandrels is floating and plays an auxiliary positioning role. The first positioning mandrel has a tapered surface at one end corresponding to the pressing head. When the pressing head presses against the product hole, its tapered surface clamps the inner hole of the part, restricting the movement of the part in six directions together with the second positioning mandrel and the pressing head. It can be well applied when positioning valve bodies of different sizes. At the same time, the auxiliary positioning plate plays an auxiliary support role when processing the upper surface and inner hole of the part. Attached Figure Description

[0016] Figure 1 This is a perspective view of the entire utility model;

[0017] Figure 2This is a top view of the present invention;

[0018] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0019] In the figure: 1. Base plate; 2. Assembly groove; 3. Assembly plate; 4. Pressing and positioning plate; 5. Cylinder; 6. Pressing and positioning sleeve; 7. Pressing head; 8. Main positioning plate; 9. Mandrel positioning sleeve; 10. First positioning mandrel; 11. Second positioning mandrel; 12. Valve body parts; 13. Auxiliary positioning plate; 14. First reinforcing rib plate; 15. Second reinforcing rib plate. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1-3In this embodiment of the utility model, a valve body positioning fixture includes an assembly plate 3. A main positioning plate 8 is fixedly connected to one side of the top of the assembly plate 3. Four sets of positioning mandrel mechanisms are installed on the main positioning plate 8. A clamping positioning plate 4 is fixedly connected to the other side of the top of the assembly plate 3. Four clamping heads 7 are installed on the clamping positioning plate 4 corresponding to the four sets of positioning mandrel mechanisms. A valve body part 12 is provided between each set of positioning mandrel mechanisms and a clamping head 7. The main positioning plate 8 is equipped with four sets of positioning mandrels. Each set of positioning mandrels includes a first positioning mandrel 10 and a second positioning mandrel 11, which can cooperate with the four clamping heads 7 installed on the clamping positioning plate 4 to position and install a total of four parts, so that the positioning and fixing of four parts can be performed simultaneously.

[0024] The positioning mandrel mechanism includes a first positioning mandrel 10 and a second positioning mandrel 11 arranged symmetrically front to back. The second positioning mandrel 11 is floating and can be positioned by floating, playing an auxiliary positioning role. The other end of the first positioning mandrel 10 has a conical surface. When the clamping head 7 clamps the product hole, the conical surface clamps the inner hole of the part, restricting the movement of the part in six directions together with the second positioning mandrel 11 and the clamping head 7. Four auxiliary positioning plates 13 are fixedly connected at equal intervals from front to back at the top center of the assembly plate 3. The top of each auxiliary positioning plate 13 slides and supports the valve body part 12 on its corresponding side, playing an auxiliary support role when machining the upper surface and inner hole of the part.

[0025] Both the first positioning mandrel 10 and the second positioning mandrel 11 have mandrel positioning sleeves 9 installed on their outer sides. The valve body part 12 is connected and installed on the other side of the first positioning mandrel 10 and the second positioning mandrel 11. The mandrel positioning sleeve 9 on the outer side of the first positioning mandrel 10 is fixedly installed in the main positioning plate 8, and the mandrel positioning sleeve 9 on the outer side of the second positioning mandrel 11 is floatingly installed in the main positioning plate 8. A pressing positioning sleeve 6 is slidably installed on the outer side of the pressing head 7. The pressing positioning sleeve 6 is fixedly installed in the pressing positioning plate 4. The pressing positioning sleeve 6 covers the entire pressing head 7, which is conducive to fixing, correcting and pressing the pressing head 7. Both the mandrel positioning sleeve 9 and the pressing positioning sleeve 6 are T-shaped designs, which can better fix the positioning mandrel and the pressing head 7 on the main positioning plate 8 and the pressing positioning plate 4, preventing the mandrel and the pressing head 7 from directly contacting the positioning plate and avoiding slippage and wear of the parts.

[0026] On the other side of the clamping positioning plate 4, a cylinder 5 is fixedly installed at one of the four clamping positioning sleeves 6. The telescopic end of the telescopic shaft of the cylinder 5 is fixedly connected to the clamping head 7 on the corresponding side. The cylinder 5 can drive the clamping head 7 to move.

[0027] The bottom of the assembly plate 3 is provided with a base plate 1. The top of the base plate 1 has four horizontally equidistant assembly slots 2. The assembly plate 3 is fixedly installed in the two middle assembly slots 2 and is installed on the top of the base plate 1.

[0028] Multiple first reinforcing ribs 14 are fixedly connected between one end of the main positioning plate 8 and the top end of the assembly plate 3, and multiple second reinforcing ribs 15 are fixedly connected between the other end of the pressing positioning plate 4 and the top end of the assembly plate 3. The reinforcing ribs play a role in connecting and reinforcing the positioning plate and the assembly plate 3.

[0029] The working principle of this utility model is as follows: Four sets of positioning mandrels are installed on the main positioning plate 8. Each set of positioning mandrels includes a first positioning mandrel 10 and a second positioning mandrel 11, which can cooperate with the four clamping heads 7 installed on the positioning plate 4 to position and install a total of four parts, so that the positioning and fixing of four parts can be performed simultaneously. The second positioning mandrel 11 is floating and can be floating to position, playing an auxiliary positioning role. The other end of the first positioning mandrel 10 is a conical surface. When the clamping head 7 clamps the product hole, the conical surface clamps the inner hole of the part, and together with the second positioning mandrel 11 and the clamping head 7, restricts the movement of the part in six directions. Four auxiliary positioning plates 13 are fixedly connected at equal intervals from front to back at the top center of the assembly plate 3. The top of each auxiliary positioning plate 13 slides to support the valve body part 12 on its corresponding side, playing an auxiliary support role when processing the upper surface and inner hole of the part.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A valve body positioning fixture, comprising an assembly plate (3); Its features are: A main positioning plate (8) is fixedly connected to one side of the top of the assembly plate (3). Four sets of positioning spindle mechanisms are installed on the main positioning plate (8). A pressing positioning plate (4) is fixedly connected to the other side of the top of the assembly plate (3). Four pressing heads (7) are installed on the pressing positioning plate (4) corresponding to the four sets of positioning spindle mechanisms. A valve body part (12) is provided between each set of positioning mandrel mechanisms and a clamping head (7); The positioning mandrel mechanism includes a first positioning mandrel (10) and a second positioning mandrel (11) arranged symmetrically front to back. The second positioning mandrel (11) is floating, and the other end of the first positioning mandrel (10) is a tapered surface. The top center of the assembly plate (3) is fixedly connected with four auxiliary positioning plates (13) at equal intervals from front to back. Each auxiliary positioning plate (13) has a valve body part (12) on its corresponding side slidably supported at its top.

2. The valve body positioning fixture according to claim 1, characterized in that: Both the first positioning mandrel (10) and the second positioning mandrel (11) are fitted with mandrel positioning sleeves (9) on their outer sides, and valve body parts (12) are connected and installed on the other side of the first positioning mandrel (10) and the second positioning mandrel (11).

3. The valve body positioning fixture according to claim 2, characterized in that: The mandrel positioning sleeve (9) on the outside of the first positioning mandrel (10) is fixedly installed inside the main positioning plate (8), and the mandrel positioning sleeve (9) on the outside of the second positioning mandrel (11) is floatingly installed inside the main positioning plate (8).

4. The valve body positioning fixture according to claim 1, characterized in that: A clamping positioning sleeve (6) is slidably installed on the outside of the clamping head (7). The clamping positioning sleeve (6) is fixedly installed on the clamping positioning plate (4). The clamping positioning sleeve (6) covers the entire clamping head (7).

5. The valve body positioning fixture according to claim 1, characterized in that: On the other side of the pressing and positioning plate (4), a cylinder (5) is fixedly installed at the four pressing and positioning sleeves (6), and the telescopic end of the telescopic shaft of the cylinder (5) is fixedly connected to the pressing head (7) on its corresponding side.

6. The valve body positioning fixture according to claim 1, characterized in that: The bottom of the assembly plate (3) is provided with a base plate (1), and the top of the base plate (1) is provided with four assembly slots (2) at equal intervals. The assembly plate (3) is fixedly installed in the two assembly slots (2) in the middle.

7. The valve body positioning fixture according to claim 1, characterized in that: One end of the main positioning plate (8) is fixedly connected to the top of the assembly plate (3) with a plurality of first reinforcing ribs (14), and the other end of the pressing positioning plate (4) is fixedly connected to the top of the assembly plate (3) with a plurality of second reinforcing ribs (15).

Images