Valve body machining tool

Abstract

The utility model discloses a valve body machining tool which comprises a base, two supporting seats are installed on the base in a spaced mode, a valve body is located in a gap between the two supporting seats, a pressing plate is installed on the tops of the supporting seats through locking screws, square blocks are arranged on the left side and the right side of the valve body respectively, and first clamping grooves matched with the square blocks are formed in the bottom of the pressing plate. A second clamping groove matched with the square block is formed in the bottom of the supporting base, the square block is clamped between the corresponding first clamping groove and the second clamping groove, and a locking screw is further installed on the outer side of the supporting base and abuts against the corresponding square block. The utility model has the beneficial effects that the square block is arranged on the valve body, and the square block is clamped by the square clamping groove, so that the position of the axial lead of the square block is always unchanged after the processing surface of the valve body is converted, and the problem that the processing precision cannot meet the requirement due to secondary clamping of the valve body is solved; and the machining quality of the valve body is ensured.

Description

Technical Field

[0001] The utility model relates to the processing of valve bodies, in particular to a valve body processing tooling fixture. Background Art

[0002] When processing a valve body, the upper side, front side and rear side of the valve body all have connecting heads that need to be processed. Among them, it is necessary to ensure that the axis of the upper connecting head is perpendicular to the axes of the front and rear connecting heads, and at the same time, the coaxiality of the front and rear connecting heads also needs to be ensured, and its precision requirement is less than 0.1 mm. Therefore, for traditional clamping methods, such as vises, after three clamps, each clamp will bring errors, making it difficult to meet the processing of valve bodies.

[0003] After long-term research, the inventor proposed a valve body processing tooling fixture from the perspective of eliminating secondary clamping errors. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a valve body processing tooling fixture.

[0005] The purpose of the utility model is realized by the following technical solutions: A valve body processing tooling fixture includes a base, on which two support seats are installed at intervals. The valve body is located in the gap between the two support seats. At the top of the support seat, a pressing plate is installed through a locking screw. Square blocks are arranged on both the left and right sides of the valve body. At the bottom of the pressing plate, a first clamping groove matching the square block is opened. At the bottom of the support seat, a second clamping groove matching the square block is provided. The square block is clamped between the corresponding first clamping groove and the second clamping groove. A locking screw is also installed on the outer side of the support seat, and the locking screw abuts against the corresponding square block.

[0006] Optionally, an installation groove is opened on the outer side wall of the support seat, and a backing plate is detachably installed in the installation groove. A threaded hole matching the locking screw is opened on the backing plate.

[0007] Optionally, a locking nut is installed on the locking screw in a threaded manner, and the locking nut is located between the backing plate and the head of the locking screw.

[0008] Optionally, a convex part higher than the top of the support seat is provided at the top of the backing plate. A threaded hole is opened on the convex part, and the locking screw abuts against the middle of the square block.

[0009] Optionally, the diagonal of the square block is horizontally and vertically arranged, and chamfers are opened at the four corners of the square block.

[0010] Optionally, a vertically upward positioning post is provided on the base, and a positioning hole corresponding to the positioning post is opened at the bottom of the support seat.

[0011] Yes. At least two offset positioning posts are provided at the top of the support base, and positioning posts corresponding to the positioning holes on the corresponding support base are installed on the support base.

[0012] Yes. The base is a disc.

[0013] The utility model has the following advantages: In the valve body processing tooling of the utility model, by arranging a square block on the valve body and clamping the square block through a square clamping groove, the axis position of the square block remains unchanged after the valve body changes the processing surface, thereby overcoming the problem that the processing accuracy cannot meet the requirements caused by the secondary clamping of the valve body and ensuring the processing quality of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the utility model;

[0015] Figure 2 is a schematic structural diagram of the utility model after clamping the valve body;

[0016] Figure 3 is Figure 2 a cross-sectional schematic diagram of;

[0017] Figure 4 is a schematic structural diagram of the support base;

[0018] Figure 5 is a schematic structural diagram of the valve body;

[0019] In the figure, 1 - base, 2 - support base, 3 - pressing plate, 4 - locking screw, 5 - backing plate, 6 - locking nut, 7 - locking screw rod, 8 - first clamping groove, 9 - second clamping groove, 10 - mounting groove, 11 - valve body, 12 - square block, 13 - positioning post. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] To make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Usually, the components of the embodiments of the utility model described and shown here can be arranged and designed in various different configurations.

[0021] Therefore, the detailed description of the embodiments of the utility model provided in the drawings below is not intended to limit the scope of the claimed utility model, but merely represents the selected embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts fall within the scope of protection of the utility model.

[0022] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0023] It should be noted that like reference numerals and letters indicate similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the utility model product is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Such as Figure 1 、 Figure 2 and Figure 4As shown in the figure, a valve body processing tooling includes a base 1, on which two support seats 2 are installed at intervals. The valve body 11 is located in the gap between the two support seats 2. A pressing plate 3 is installed on the top of the support seat 2 through a locking screw 4. Square blocks 12 are arranged on both the left and right sides of the valve body 11. A first clamping groove 8 matching the square block 12 is formed at the bottom of the pressing plate 3. A second clamping groove 9 matching the square block 12 is formed at the bottom of the support seat 2. The square block 12 is clamped between the corresponding first clamping groove 8 and the second clamping groove 9. A locking screw 7 is also installed on the outer side of the support seat 2, and the locking screw 7 abuts against the corresponding square block 12. In this embodiment, the first clamping groove 8 and the second clamping groove 9 form a clamping groove matching the square block 12. During processing, through the matching of the clamping groove and the square block 12, when the valve body 11 rotates 90° or 180°, the axis line of the square block 12 remains unchanged all the time. Therefore, after processing the upper side, the front side and the rear side of the valve body 11, the processing accuracy requirements of the upper side, the front side and the rear side of the valve body 11 can be met.

[0027] In this embodiment, as Figure 2 , Figure 3 and Figure 4 shown, an installation groove 10 is formed on the outer side wall of the support seat 2. A backing plate 5 is detachably installed in the installation groove 10. A threaded hole matching the locking screw 7 is formed on the backing plate 5. Further, a locking nut 6 is threadedly installed on the locking screw 7. The locking nut 6 is located between the backing plate 5 and the head of the locking screw 7. During use, after the square block 12 is placed in the corresponding second clamping groove 9, then the pressing plate 3 is placed on the support seat 2, and the first clamping groove 8 of the pressing plate 3 clamps the square block 12. After the pressing plate 3 is locked through the locking screw 4, the square clamping groove formed by the first clamping groove 8 and the second clamping groove 9 clamps the square block 12. Then the locking screw 7 is locked to prevent the valve body 11 from moving left and right during processing. After the locking screw 7 is locked, the locking nut 6 is locked, thereby avoiding the loosening of the locking screw 7 of the valve body 11 during processing through different threaded locking forces.

[0028] In this embodiment, as Figure 2 shown, a convex part higher than the top of the support seat 2 is arranged on the top of the backing plate 5. A threaded hole is formed on the convex part, and the locking screw 7 abuts against the middle of the square block 12. By providing the backing plate 5, the structure of the support seat 2 is simple and easy to process, and the backing plate 5 is installed in the installation groove 10 through screws.

[0029] In this embodiment, as Figure 5As shown, the diagonals of the square block 12 are horizontally and vertically arranged. Therefore, the diagonals of the square block 12 are fitted and installed within the included angle of the clamping groove, and the clamping groove is convenient to machine. It is also convenient to place the square block 12 in the clamping groove. Chamfers are provided at the four corners of the square block 12. Therefore, when the square block 12 is clamped by the clamping groove, there is a gap between the diagonal of the square block and the included angle of the clamping groove, so that the clamping of the square block 12 will not be affected by air resistance.

[0030] In this embodiment, as Figure 4 shown, a vertically upward positioning post 13 is provided on the base 1, and a positioning hole corresponding to the positioning post 13 is provided at the bottom of the support seat 2. Further, at least two staggered positioning posts 13 are provided at the top of the support seat 2, and a positioning post 13 corresponding to the positioning hole on the corresponding support seat 2 is installed on the support seat 2. Preferably, two positioning posts 13 are provided at the bottom of the support seat 2. During installation, the positioning post 13 is passed through the positioning hole of the support seat 2, and then the support seat 2 is locked to the base 1 with screws. Due to the cooperation between the positioning post 13 and the positioning hole, the installation accuracy of the support seat 2 and the base 1 is ensured.

[0031] In this embodiment, as Figure 1 and Figure 2 shown, the base 1 is a disc, so that the tooling is convenient to clamp. It can be clamped by the three-jaw chuck of the machine tool or adsorbed by an electromagnet to make the position of the base 1 stable, thereby improving the applicability of the tooling.

[0032] The working process of the present utility model is as follows: Place the square block 12 in the corresponding second clamping groove 9, and then lock the pressing plate 3, so that the clamping groove formed by the first clamping groove 8 and the second clamping groove 9 clamps the square block 12. At this time, the surface to be processed is located at the top. Then lock the locking screw 7 to prevent the valve body 11 from moving left and right. Place this tooling on the machine tool and be clamped by the clamping mechanism on the machine tool at the base 1. Then, according to requirements, process the surface to be processed. After the processing is completed, loosen the locking screw 4, remove the pressing plate 3, and then flip the valve body 11 by 90° or 180°, so that the surface to be processed of another valve body 11 is located at the top. Then lock the locking screw 4 again to make the clamping groove clamp the square block 12. If necessary, fine-tune the locking screw 7 to ensure the limit of the locking screw 7 on the valve body 11. Then process this surface to be processed to complete the processing of the upper side, front side, and rear side of the valve body 11. Although the valve body 11 is rotating, during the processing, the clamping groove always clamps the square block 12, so that the axis position of the square block 12 always remains unchanged. Thus, after multiple clampings, the axis position of the square block 12 always remains unchanged, overcoming the problem of insufficient machining accuracy caused by the secondary clamping of the valve body 11, and thus ensuring the machining quality of the valve body 11. When the processing of the valve body 11 is completed, cut the square block 12 by wire cutting.

[0033] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A valve body processing tool, characterized in that: It includes a base, two support seats are installed on the base at intervals, the valve body is located in the gap between the two support seats, a pressure plate is installed on the top of the support seat through a locking screw, square blocks are arranged on the left and right sides of the valve body, a first clamping groove matching the square block is opened at the bottom of the pressure plate, a second clamping groove matching the square block is arranged at the bottom of the support seat, the square block is clamped between the corresponding first clamping groove and the second clamping groove, and a locking screw is also installed on the outer side of the support seat, and the locking screw abuts against the corresponding square block.

2. A valve body processing tool according to claim 1, characterized in that: An installation groove is provided on the outer side wall of the support seat, a backing plate is detachably installed in the installation groove, and a threaded hole that matches with the thread of the locking screw is provided on the backing plate.

3. A valve body processing tool according to claim 2, characterized in that: A locking nut is thread-matchedly mounted on the locking screw, and the locking nut is located between the backing plate and the head of the locking screw.

4. A valve body processing tool according to claim 3, characterized in that: The top of the pad is provided with a convex portion higher than the top of the support seat, the threaded hole is provided on the convex portion, and the locking screw is pressed against the middle of the square block.

5. A valve body processing tool according to any one of claims 1 to 4, characterized in that: The diagonal lines of the square block are arranged horizontally and vertically, and chamfers are provided on the four corners of the square block.

6. A valve body processing tool according to any one of claims 1 to 4, characterized in that: The base is provided with a vertically upward positioning column, and the bottom of the support seat is provided with a positioning hole corresponding to the positioning column.

7. A valve body processing tool according to claim 6, characterized in that: At least two staggered positioning columns are provided on the top of the support seat, and positioning columns corresponding to the positioning holes on the support seat are installed on the support seat.

8. A valve body processing tool according to any one of claims 1 to 4, characterized in that: The base is a disc.

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