Machining clamp for drilling of valve body of control valve
By using a combined structure of fixture tooling, wire plugs and oblique shims, the problem of difficulty in fast fixing and positioning of the control valve body drilling process in the prior art is solved, and efficient and accurate drilling process is achieved, reducing the scrap rate and saving costs.
Patent Information
- Application Number
- CN202421246662.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-03
AI Technical Summary
Existing drilling fixtures are difficult to quickly fix and position the control valve body, and the inclined hole angle and symmetry are strictly required, resulting in high product scrap rate.
The combined structure of fixture tooling, wire plugs and oblique shims is adopted to fix and position the control valve body, and a drilling die sleeve is placed in the reserved hole to protect the drilling process.
It improves the speed and accuracy of drilling processing, reduces the scrap rate, ensures the yield rate, and saves costs.
Smart Images
Figure CN222552851U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a processing fixture for drilling a control valve body, belonging to the technical field of drilling fixtures. Background Art
[0002] like Figure 1 As shown, the control valve body is a key part of the control valve. The main body of the valve body is a cylinder. The valve body needs to be drilled with an inclined hole during the processing. The inclined hole of the valve body is used for liquid to pass through. A drilling fixture is required when drilling the inclined hole. The existing drilling fixture cannot achieve rapid fixing and positioning, and the requirements for the angle and symmetry of the inclined hole are very strict, resulting in a high scrap rate of the processed products. Utility Model Content
[0003] In order to solve the problems existing in the prior art, the utility model arranges a clamp, a screw plug and an inclined washer to fix and position the control valve body, which is convenient for drilling processing. In addition, a drilling mold sleeve is placed in the reserved hole. When the drill bit drills the control valve body, the drilling mold sleeve protects the reserved hole. When the drilling mold sleeve is damaged, it can be replaced. The utility model has a simple structure and high processing efficiency, improves the drilling processing quality, ensures the yield rate, and saves costs.
[0004] The technical solution adopted by the utility model is a processing fixture for drilling a hole in a control valve body, comprising an inclined washer, a screw plug and a fixture tooling, wherein end A of the screw plug is fixed on the inclined washer, and end B of the screw plug is used to fix the control valve body received in the fixture tooling, the interior of the fixture tooling is a cavity for receiving the control valve body, and the side wall of the fixture tooling is provided with a reserved hole that matches the inclined hole of the valve body.
[0005] Furthermore, the bottom of the fixture has an internal thread, and the B end of the screw plug has an external thread. When the control valve body is placed in the cavity, the control valve body is clamped and fixed by the threaded connection between the B end of the screw plug and the bottom of the fixture.
[0006] Furthermore, the inclined washer includes a first italic body and a second italic body, the first italic body and the second italic body are integrally formed, and the angle between the inclined surface of the first italic body and the inclined surface of the second italic body is a right angle.
[0007] Furthermore, a drilling mold sleeve is detachably provided in the reserved hole of the fixture, and the inner side of the drilling mold sleeve is a sleeve hole for the drill bit to pass through.
[0008] Furthermore, the material hardness of the drilling die sleeve is greater than the hardness of the drill bit, and the outer periphery of the drilling die sleeve is interference fit with the reserved hole of the fixture tooling.
[0009] Furthermore, the diameter of the reserved hole of the fixture is 0.05 mm larger than the outer circumference of the drilling die sleeve.
[0010] The utility model discloses a processing fixture for drilling a hole in a control valve body. The beneficial effect is that the control valve body is fixed by arranging a fixture tool and a screw plug. The fixture tool cooperates with an inclined washer to facilitate drilling. The fixture tool has a reserved hole that matches the inclined hole of the valve body. In addition, a drilling mold sleeve is placed in the reserved hole. The utility model has a simple structure and high processing efficiency, improves the drilling processing quality, ensures the yield rate, and saves costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0012] Figure 1 The figure shows a cross-sectional view of the control valve body;
[0013] Figure 2 The figure shows a cross-sectional schematic diagram of the fixture structure of Example 1;
[0014] Figure 3 The figure shows a schematic front view of the inclined washer of Example 1;
[0015] Figure 4 The figure shows a schematic diagram of a screw plug and a drilling die sleeve in Example 1;
[0016] Figure 5 Shown is a processing schematic diagram of Example 1.
[0017] As shown in the figure: 1. inclined washer; 2. screw plug; 3. fixture; 4. control valve body; 5. drilling die sleeve; 11. first italic body; 12. second italic body; 21. A end; 22. B end; 31. cavity; 32. reserved hole; 33. bottom; 41. inclined hole of valve body. DETAILED DESCRIPTION
[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme 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 only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0019] In order to further understand the content of the utility model, this technical solution is further explained below in conjunction with specific implementation methods.
[0020] Embodiment 1:
[0021] like Figures 1 to 5 As shown, this embodiment provides a processing fixture for drilling a control valve body, including an inclined washer 1, a screw plug 2 and a fixture tooling 3, the inclined washer 1 includes a first italic body 11 and a second italic body 12, the first italic body 11 and the second italic body 12 are integrally formed, the angle between the inclined surface of the first italic body 11 and the inclined surface of the second italic body 12 is a right angle, the inclined surface of the first italic body 11 and the inclined surface of the second italic body 12 are jointly used to support and fix the fixture tooling 3, so that the drilling equipment can drill the control valve body 4 in the fixture tooling 3; the A end 21 of the screw plug 2 is vertically fixed on the inclined surface of the first italic body 11 of the inclined washer 1, and the B end 22 of the screw plug 2 is used to support and fix the fixture tooling 3 3 is clamped and fixed. The clamp tooling 3 is rectangular. Specifically, the interior of the clamp tooling 3 is a cavity 31 for accommodating the control valve body 4. The inner top surface of the cavity 31 fits with the end surface shape of the control valve body 4. The inner side of the bottom 33 of the clamp tooling 3 has an internal thread, and the end 22 of the screw plug 2B has an external thread. When the control valve body 4 is placed in the cavity 31, the control valve body 4 is clamped and fixed through the threaded connection between the end 22 of the screw plug 2B and the bottom 33 of the clamp tooling 3, and the clamp tooling 3 fits with the inclined surface of the second bevel, thereby avoiding deformation of the control valve body 4, ensuring the processing size accuracy and processing error of the control valve body 4, and convenient loading and unloading. The side wall of the fixture 3 is provided with a reserved hole 32 that matches the valve body oblique hole 41. Specifically, the reserved hole 32 passes through the fixture 3. The angle between the reserved hole 32 and the fixture 3 body is 60°. The position of the reserved hole 32 corresponds to the valve body oblique hole 41 to be drilled. The valve body oblique hole 31 is axially symmetrically arranged about the control valve body 4. The valve body oblique holes 41 on the same side are arranged relatively. Figure 1 and Figure 5 shown.
[0022] A drilling die sleeve 5 is placed in the reserved hole 32 of the fixture tooling 3, and the inner side of the drilling die sleeve 5 is a sleeve hole for the drill bit to pass through, wherein the material hardness of the drilling die sleeve 5 is greater than the hardness of the drill bit, and the outer periphery of the drilling die sleeve 5 is interference fit with the reserved hole 32 of the fixture tooling 3. Specifically, the diameter of the reserved hole 32 of the fixture tooling 3 is 0.05 mm larger than the outer periphery of the drilling die sleeve 5.
[0023] In actual operation, first, the control valve body 4 is installed from the bottom 33 of the fixture 3, and the bottom 33 of the fixture 3 is connected to the B end 22 of the screw plug 2 to press and fix the control valve body 4; secondly, the drilling die sleeve 5 is placed in the reserved hole 32 to prevent the drill bit from being recycled for long-term drilling processing, which may cause wear of the inner hole of the reserved hole 32 and cause deviation in position and angle, so a drilling die sleeve 5 is placed in each of the four reserved holes 32; by changing the position of the fixture 3, the control valve body 4 is drilled with the help of the drill bit on the drilling machine, specifically, the drill bit passes through the drilling die sleeve 5 along the reserved hole 32 to process the control valve body 4 in the fixture 3; after the processing is completed, the screw plug 2 is loosened to separate the screw plug 2 from the fixture 3, and the control valve body 4 can be taken out.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A processing fixture for drilling a control valve body, characterized in that: The invention comprises an inclined washer (1), a thread plug (2) and a fixture (3); an A end (21) of the thread plug (2) is fixed on the inclined washer (1); a B end (22) of the thread plug (2) is used to fix a control valve body (4) received in the fixture (3); the interior of the fixture (3) is a cavity (31) for receiving the control valve body (4); and a side wall of the fixture (3) is provided with a reserved hole (32) which matches the inclined hole (41) of the valve body.
2. A processing fixture for drilling a control valve body according to claim 1, characterized in that: The bottom (33) of the fixture (3) is provided with an internal thread, the B end (22) of the screw plug (2) is provided with an external thread, and the B end (22) of the screw plug (2) is threadedly connected to the bottom (33) of the fixture (3).
3. A processing fixture for drilling a control valve body according to claim 1 or 2, characterized in that: The inclined washer (1) comprises a first inclined body (11) and a second inclined body (12); the first inclined body (11) and the second inclined body (12) are integrally formed; and the angle between the inclined surface of the first inclined body (11) and the inclined surface of the second inclined body (12) is a right angle.
4. A processing fixture for drilling a control valve body according to claim 3, characterized in that: A drilling die sleeve (5) is detachably arranged in the reserved hole (32) of the fixture tooling (3), and the inner side of the drilling die sleeve (5) is a sleeve hole for a drill bit to pass through.
5. A processing fixture for drilling a control valve body according to claim 4, characterized in that: The material hardness of the drilling die sleeve (5) is greater than the hardness of the drill bit, and the outer periphery of the drilling die sleeve (5) is interference-fitted with the reserved hole (32) of the fixture tooling (3).
6. A processing fixture for drilling a control valve body according to claim 5, characterized in that: The diameter of the reserved hole (32) is 0.05 mm larger than the outer circumference of the drilling die sleeve (5).