Drilling fixture for truck air control valve main valve body

Abstract

The utility model relates to a kind of drilling tool for truck air control valve main valve body, including drill jig and the bottom plate for carrying main valve body, its technical key points are: the through-hole corresponding main valve body inner cavity is equipped in the middle of drill jig, internal thread column is fixed on the bottom plate upper surface, the tip of cylinder head inner hexagonal screw is connected and fixed after passing through through-hole, drill jig side end surface is connected with the positioning plate perpendicular to it using screw group, the positioning plate lower part is equipped with the thread hole group towards main valve body side, each thread hole of the thread hole group is connected with hexagon bolt, another hexagonal flat nut is equipped on the hexagon bolt, drill sleeve corresponding main valve body upper surface drilling position is embedded on drill jig.This tool solves the problem that main valve body upper surface drilling positioning is difficult for truck air control valve, significantly improves the position accuracy and dimensional accuracy of drilling, saves production cost.

Description

Technical Field

[0001] This utility model relates to the technical field of drilling auxiliary devices, specifically to a drilling tool for the main valve body of a truck air control valve. Background Technology

[0002] The existing truck air control valve requires at least five holes to be drilled on the upper surface of the main valve body, and these holes vary in location and size. This causes positioning difficulties during the drilling process, often resulting in scrap due to issues with the positional and dimensional accuracy of the holes, thus increasing production costs. Utility Model Content

[0003] The purpose of this invention is to provide a drilling fixture for the main valve body of a truck air control valve that is structurally sound and reliable in use. This fixture solves the problem of difficult drilling and positioning on the upper surface of the main valve body of the truck air control valve, significantly improves the positional and dimensional accuracy of the drilling, and saves production costs.

[0004] The technical solution of this utility model is: A drilling fixture for the main valve body of a truck air control valve includes a drilling template and a base plate for supporting the main valve body. The key technical features are: a through hole corresponding to the inner cavity of the main valve body is provided in the middle of the drilling template; an internally threaded post is fixed to the upper surface of the base plate; the tip of a cylindrical-head hexagonal screw passes through the through hole and is connected and fixed to the internally threaded post; a positioning plate perpendicular to the drilling template is connected to the side end face using a screw assembly; a set of threaded holes facing the main valve body is provided at the lower part of the positioning plate; each threaded hole in the set of threaded holes is connected to a hexagonal bolt; a hexagonal flat nut is also provided on the hexagonal bolt; and a drill sleeve corresponding to the drilling position on the upper surface of the main valve body is embedded in the drilling template.

[0005] The aforementioned drilling fixture for the main valve body of the air control valve of a truck has an open gasket sandwiched between the cylindrical head of the cylindrical head hexagonal screw and the outer edge of the through hole.

[0006] The aforementioned drilling fixture for the main valve body of the air control valve of a truck has a positioning hole on the base plate, and a reduced-diameter column section at the lower end of the internal threaded column that mates with the positioning hole. The internal threaded column is welded and fixed to the base plate.

[0007] The aforementioned drilling fixture for the main valve body of the air control valve of a truck is further provided with a replaceable drill sleeve on the drilling template and fixed by fastening screws.

[0008] The aforementioned drilling fixture for the main valve body of the air control valve of a truck has a concave-convex structure on the bottom surface of the drilling template that mates with the upper surface of the main valve body.

[0009] The beneficial effects of this utility model are: 1. This fixture can be quickly assembled and disassembled with the main valve body, which not only greatly improves the efficiency of drilling holes on the upper surface of the main valve body and saves time in aligning the drill bit during drilling operations, but most importantly, it identifies the machining position of the part during the drilling process, thereby effectively preventing drilling position errors, improving the accuracy of the drilling position on the upper surface of the main valve body, and ensuring the dimensional accuracy of the drilling. Its simple structure and reliable performance solve the problem of difficult positioning during workpiece drilling operations, increasing the reliability of drilling.

[0010] 2. The drill bushing is replaceable, which allows for control over the drilling size and solves the problems of workpiece scrapping and cost waste caused by excessively large drilling during drilling operations. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the assembly structure of this utility model and the main valve body; Figure 2 yes Figure 1 Top view.

[0012] In the diagram: 1. Screw assembly, 2. Drill template, 3. Open gasket, 4. Through hole, 5. Cylindrical head hexagonal screw, 6. Main valve body, 7. Internal threaded post, 8. Base plate, 9. Positioning hole, 10. Hexagonal flat nut, 11. Hexagonal bolt, 12. Positioning plate, 13. Drill bushing, 14. Replaceable drill bushing, 15. Fastening screw. Detailed Implementation

[0013] The present invention will be described in detail with reference to the accompanying drawings.

[0014] like Figure 1 , Figure 2 As shown, the drilling fixture for the main valve body of a truck air control valve includes a drilling template 2 and a base plate 8 for supporting the main valve body 6. The bottom surface of the drilling template 2 has a concave-convex structure that mates with the upper surface of the main valve body 6.

[0015] The drill template 2 has a through hole 4 in the middle corresponding to the inner cavity of the main valve body 6. An internally threaded post 7 is fixed to the upper surface of the base plate 8. The tip of a cylindrical head hexagonal screw 5 passes through the through hole 4 and is connected and fixed to the internally threaded post 7. In this embodiment, the size of the through hole 4 is larger than the outer diameter of the cylindrical head of the cylindrical head hexagonal screw 5. An open washer 3 is sandwiched between the cylindrical head of the cylindrical head hexagonal screw 5 and the outer edge of the through hole 4. The base plate 8 has a positioning hole 9, and the lower end of the internally threaded post 7 has a reduced-diameter section that mates with the positioning hole 9. The internally threaded post 7 is welded and fixed to the base plate 8.

[0016] The side end face of the drill template 2 is connected to a positioning plate 12 perpendicular to it by a screw group 1. The lower part of the positioning plate 12 is provided with a threaded hole group facing the main valve body 6. Each threaded hole of the threaded hole group is connected to a hexagonal bolt 11, and a hexagonal flat nut 10 is provided on the hexagonal bolt 11.

[0017] The drill template 2 is fitted with drill sleeves 13 corresponding to the drilling positions on the upper surface of the main valve body 6. The drill template 2 is also equipped with replaceable drill sleeves 14, which are secured with fastening screws 15. In this embodiment, the drill template 2 has three φ12 drill sleeves, one φ8 drill sleeve, and one replaceable drill sleeve.

[0018] Working principle: The drill template 2 is installed on the upper surface of the main valve body 6 of the truck air control valve. It uses a concave-convex structure to mate with the upper surface of the main valve body 6. During installation, it is positioned horizontally by using the positioning plate 12. Then, it is vertically pressed and positioned by using the cylindrical head hexagon socket screw 5 and the internal threaded post 7.

[0019] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made within the scope of this utility model should still fall within the scope of this utility model.

Claims

1. A drilling fixture for the main valve body of a truck air control valve, comprising a drilling template and a base plate for supporting the main valve body, characterized in that: The drill template has a through hole in the middle corresponding to the cavity of the main valve body. An internally threaded post is fixed on the upper surface of the base plate. The tip of the cylindrical head hexagonal screw passes through the through hole and is connected and fixed to the internally threaded post. A positioning plate perpendicular to the drill template is connected to the side end face by a screw group. The lower part of the positioning plate has a threaded hole group facing the main valve body. Each threaded hole of the threaded hole group is connected to a hexagonal bolt. A hexagonal flat nut is also provided on the hexagonal bolt. A drill sleeve corresponding to the drilling position on the upper surface of the main valve body is embedded on the drill template.

2. The drilling fixture for the main valve body of a truck air control valve according to claim 1, characterized in that: An open washer is provided between the cylindrical head of the cylindrical head hexagonal socket screw and the outer edge of the through hole.

3. The drilling fixture for the main valve body of a truck air control valve according to claim 1, characterized in that: The base plate is provided with positioning holes, and the lower end of the internal threaded column is provided with a reduced diameter column section that mates with the positioning holes. The internal threaded column is welded and fixed to the base plate.

4. The drilling fixture for the main valve body of a truck air control valve according to claim 1, characterized in that: The drill template is also equipped with a replaceable drill sleeve, which is fixed by fastening screws.

5. The drilling fixture for the main valve body of a truck air control valve according to claim 1, characterized in that: The bottom surface of the drill template is provided with a concave-convex structure that matches the upper surface of the main valve body.

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