Plate bending tool for lathe machining of shaft hole of main valve body
By designing bend plate tooling for lathe processing, including bend plate main body, positioning component and anti-rotation component, the problems of slow clamping and low processing efficiency of the main valve body are solved, and efficient and precise processing effects are achieved.
Patent Information
- Application Number
- CN202421629689.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In the prior art, the clamping and alignment of the main valve body is slow, the processing efficiency is low, the processing cost is high, and it is difficult to ensure the accuracy of the shaft hole part.
A bent plate tooling for lathe processing main valve body shaft hole is designed, including a bent plate main body, a positioning assembly and an anti-rotation assembly. The bending plate main body is fixedly connected by a clamping plate and a support plate. The positioning assembly includes a positioning core, a pressure plate, a fastening screw and a fastening bolt to fix the main valve body and ensure its alignment with the lathe spindle; the anti-rotation assembly prevents the circumferential rotation of the main valve body through the mounting seat and the limiting screw.
The accurate positioning and reliable clamping of the main valve body are achieved, which improves processing efficiency, reduces processing costs, and ensures the accuracy of the shaft hole part.
Smart Images
Figure CN222817980U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bending plate tooling, in particular to a bending plate tooling used for machining a main valve body shaft hole on a lathe. Background Art
[0002] The small and medium-sized main valve bodies have a peculiar structure, irregular shape, and high requirements for the size and shape accuracy of the processing part - the shaft hole. If the shaft hole part is to be processed on a lathe, it is impossible to accurately position and reliably clamp it according to the conventional clamping method, and its accuracy cannot be guaranteed. The processing method in the prior art is to fix the mandrel on the workbench of the horizontal machining center machine tool, position the main valve body on the mandrel with the φCH7 hole, align the direction, press the pressure plate, and use various different tools to perform rough and fine processing on the end face of the shaft hole and each hole. This method is slow to clamp and align the main valve body, has low processing efficiency, and high processing cost. Utility Model Content
[0003] The technical problem to be solved by the utility model is: in order to overcome the problems in the prior art that the processing device makes the clamping and alignment of the main valve body slow, the processing efficiency is low, and the processing cost is high, a bending plate tooling for lathe processing the main valve body shaft hole is provided.
[0004] The utility model solves the technical problem by adopting a technical solution: a bending plate tool for lathe processing the main valve body shaft hole, the main valve body has a valve cavity, and the outer wall surface of the main valve body is protruded with a side tube, the bending plate tool comprises:
[0005] The bending plate body comprises a clamping plate for connection with a lathe and a supporting plate for installation of the main valve body, wherein the clamping plate and the supporting plate are fixedly connected;
[0006] A positioning assembly, which is used to fix the main valve body, and includes a positioning core, a pressure plate, a fastening screw and two fastening bolts matching the fastening screws. The positioning core is arranged on the top surface of the support plate, the top surface of the positioning core is butted against the bottom surface of the main valve body, the pressure plate abuts against the top surface of the main valve body, the fastening screw passes through the pressure plate, the valve cavity of the main valve body, the positioning core and the support plate, the fastening bolt and the fastening screw are threadedly connected, the pressure plate, the valve cavity of the main valve body, the positioning core and the support plate are located between the two fastening bolts, the fastening bolt located on the top abuts against the pressure plate, and the fastening bolt located on the bottom abuts against the support plate;
[0007] And an anti-rotation component, which is used to circumferentially fix the main valve body. The anti-rotation component is arranged on the bending plate body. Through the design of the bending plate body and the positioning component, the center line of the valve chamber 11 after the main valve body 1 is clamped on the lathe coincides with the center line of the lathe spindle rotation, so that the clamping and positioning direction of the main valve body on the bending plate tooling is consistent with the processing rotation direction, which improves the processing efficiency, reduces the processing cost, and more reliably guarantees the processing accuracy.
[0008] The invention further comprises a support plate which is perpendicular to the clamping plate.
[0009] In order to solve the problem of low connection strength between the support plate and the clamping plate, the top surface of the support plate and the clamping plate are further connected by upper reinforcing ribs, the main valve body is located between the two upper reinforcing ribs, and the bottom surface of the support plate and the clamping plate are connected by lower reinforcing ribs.
[0010] In order to solve the problem of low installation efficiency of the positioning core, a positioning groove is further provided on the support plate, and a positioning portion matching the positioning groove is protruded from the bottom surface of the positioning core, and the positioning portion is located in the positioning groove.
[0011] In order to solve the problem of low docking efficiency between the positioning core and the main valve body, the positioning core further includes a docking portion protruding from the top surface thereof and matching the valve cavity of the main valve body, and a step surface protruding from the bottom plate of the valve cavity of the main valve body, and the step surface is in contact with the docking portion.
[0012] In order to solve the problem of circumferential rotation of the main valve body, an anti-rotation component is further included, including a mounting seat and a limit screw. The mounting seat is fixedly connected to the support plate, the limit screw is threadedly connected to the mounting seat, and the limit screw is against the side tube of the main valve body.
[0013] It further includes a fixed connection between a positioning core and a support plate.
[0014] The beneficial effects of the utility model are as follows: the utility model provides a bending plate tooling for lathe processing the main valve body shaft hole, through the design of the bending plate main body and the positioning component, realizes that after the main valve body is clamped on the lathe, the center line of the valve cavity coincides with the rotation center line of the lathe spindle, and realizes that the clamping and positioning direction of the main valve body on the bending plate tooling is consistent with the processing rotation direction, thereby improving processing efficiency, reducing processing costs, and more reliably ensuring processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0016] Figure 1 It is a structural schematic diagram of the utility model;
[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in a front view state;
[0018] Figure 3 It is a front view structural diagram of the bent plate main body of the utility model;
[0019] Figure 4 It is a schematic diagram of the cross-sectional structure of the main valve body of the utility model in a front view state.
[0020] In the figure: 1, main valve body, 11, valve chamber, 12, side pipe, 13, step surface;
[0021] 2. bent plate body, 21. clamping plate, 22. support plate, 221. positioning groove, 23. upper reinforcing rib, 24. lower reinforcing rib;
[0022] 3. Positioning assembly, 31. Positioning core, 311. Positioning portion, 312. Docking portion, 32. Pressing plate, 33. Fastening screw, 34. Fastening bolt;
[0023] 4. Anti-rotation assembly, 41. Mounting seat, 42. Limit screw. DETAILED DESCRIPTION
[0024] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.
[0025] like Figure 4 As shown, a plate bending tool for lathe processing the main valve body shaft hole, the main valve body 1 has a valve cavity 11, and the outer wall surface of the main valve body 1 is protruded with a side tube 12, the plate bending tool comprises:
[0026] like Figure 1 , Figure 2 , Figure 3 As shown, the bending plate body 2 includes a clamping plate 21 for connection with a lathe and a support plate 22 for installation of the main valve body 1. The clamping plate 21 and the support plate 22 are fixedly connected. The bending plate body 2 makes the clamping and positioning direction of the main valve body 1 on the bending plate tooling consistent with the processing rotation direction; the support plate 22 is perpendicular to the clamping plate 21, so that the bending plate body 2 is an L-shaped structure as a whole, so that the clamping and positioning direction of the main valve body 1 on the bending plate tooling is consistent with the processing rotation direction, which improves the processing efficiency, reduces the processing cost, and more reliably guarantees the processing accuracy;
[0027] The top surface of the support plate 22 and the clamping plate 21 are connected by an upper reinforcing rib 23, and the main valve body 1 is located between the two upper reinforcing ribs 23. The bottom surface of the support plate 22 and the clamping plate 21 are connected by a lower reinforcing rib 24, which increases the structural strength of the bent plate body 2 and prevents the tooling from being deformed by the rotating centrifugal force during use, thereby affecting the processing accuracy of the main valve body.
[0028] like Figure 1 , Figure 2As shown, the positioning assembly 3 is used to fix the main valve body 1 and make the center line of the valve cavity 11 coincide with the rotation center line of the lathe spindle after the main valve body 1 is clamped on the lathe. The positioning assembly 3 includes a positioning core 31, a pressure plate 32, a fastening screw 33 and two fastening bolts 34 matched with the fastening screw 33. The positioning core 31 is arranged on the top surface of the support plate 22, the top surface of the positioning core 31 is connected to the bottom surface of the main valve body 1, the pressure plate 32 is against the top surface of the main valve body 1, the fastening screw 33 passes through the pressure plate 32, the valve cavity 11 of the main valve body 1, the positioning core 31 and the support plate 22, the fastening bolt 34 is threadedly connected with the fastening screw 33, the pressure plate 32, the valve cavity 11 of the main valve body 1, the positioning core 31 and the support plate 22 are located between the two fastening bolts 34, the fastening bolt 34 located on the top is against the pressure plate 32, and the fastening bolt 34 located on the bottom is against the support plate 22;
[0029] A positioning groove 221 is provided on the support plate 22, and a positioning portion 311 matching the positioning groove 221 is protruded on the bottom surface of the positioning core 31. The positioning portion 311 is located in the positioning groove 221, so that the positioning core 31 can be quickly positioned on the support plate 22. The positioning core 31 and the support plate 22 are fixedly connected, and the fixed connection method can be welding, bolts or other fixing methods. The positioning core 31 is a positioning component and is designed to be a detachable structure. The same bent plate body can be used to replace positioning cores of different specifications to process main valve bodies of different specifications.
[0030] A docking portion 312 matching the valve cavity 11 of the main valve body 1 is protruded on the top surface of the positioning core 31, and a step surface 13 is protruded on the bottom plate of the valve cavity 11 of the main valve body 1. The step surface 13 is in contact with the docking portion 312, so that the main valve body 1 can be quickly positioned and installed and radial fixation of the main valve body 1 is achieved. The fastening bolts 34 at both ends achieve axial fixation of the main valve body 1.
[0031] like Figure 1 As shown, the anti-rotation assembly 4 is used for circumferentially fixing the main valve body 1 , and the anti-rotation assembly 4 is arranged on the bent plate body 2 .
[0032] The anti-rotation component 4 includes a mounting seat 41 and a limit screw 42. The mounting seat 41 is fixedly connected to the support plate 22. The limit screw 42 is threadedly connected to the mounting seat 41. The limit screw 42 presses against the side tube 12 of the main valve body 1 to prevent the main valve body 1 from circumferential rotation during the rotation process. Furthermore, the anti-rotation component 4 can be arranged on both sides of the side tube 12 of the main valve body 1 to strengthen its fixation.
[0033] The bending plate fixture of the present application is convenient to install and disassemble with the machine tool spindle, which is beneficial to improving the efficiency of machine tool workpiece change processing. The bending plate fixture makes the rotation center of the main valve body 1 coincide with the rotation center of the machine tool spindle.
[0034] Assembly of the tooling: The positioning portion 311 of the positioning core 31 is installed into the positioning groove 221 of the support plate 22 of the bending plate body 1, the end surface is flat, and it is fastened with screws. After installation, the positioning height of the positioning core 31 should be able to strictly ensure the positioning center height of the valve body, and then install the anti-rotation device 4, the pressure plate 32, the fastening screw 33 and the two fastening bolts 34 and other parts to complete the assembly of the bending plate tooling.
[0035] Connection between tooling and machine tool: The outer circle of the clamping disc 11 on the tooling is used to connect the tooling with the CNC lathe. The CNC lathe is equipped with a high-precision three-jaw chuck, on which a soft three-jaw chuck is installed that follows the outer circle of the tooling clamping disc 11. The soft three-jaw clamps the outer circle of the clamping disc 11 and makes the clamping disc 11 reference and the end face of the clamping jaws flush, thus realizing the connection between the tooling and the spindle of the CNC lathe; after connection, a lever micrometer can be used to check and verify whether the outer circle runout is out of tolerance. If it is out of tolerance, it should be reconnected and checked.
[0036] Setting of rotation balance: Due to the peculiar shape of the main valve body 1, after being clamped on the workpiece, the whole is in an asymmetric state. When it rotates on the machine tool, it will generate a certain centrifugal force, which will have a bad influence on the machine tool and the processing accuracy. To solve this problem, when designing the pressure plate 32 for clamping the main valve body 1, its size and weight are determined through rotation balance simulation and calculation. Therefore, the pressure plate 32 not only acts as a balance block during the rotation processing of the main valve body 1, but also plays a clamping and clamping role, realizing dual use of one piece.
[0037] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A plate bending tool for lathe machining a main valve body shaft hole, the main valve body (1) having a valve cavity (11), and a side tube (12) protruding from the outer wall surface of the main valve body (1), characterized in that: The bending tool includes: A bending plate body (2), comprising a clamping plate (21) for connection to a lathe and a support plate (22) for mounting the main valve body (1), wherein the clamping plate (21) and the support plate (22) are fixedly connected, and the bending plate body (2) makes the clamping and positioning direction of the main valve body (1) on the bending plate tooling consistent with the processing rotation direction; A positioning assembly (3) is used to fix the main valve body (1) and make the center line of the valve chamber (11) coincide with the center line of the lathe spindle rotation after the main valve body (1) is clamped on the lathe. The positioning assembly (3) comprises a positioning core (31), a pressure plate (32), a fastening screw (33) and two fastening bolts (34) matching the fastening screw (33). The positioning core (31) is arranged on the top surface of the support plate (22). The top surface of the positioning core (31) is in contact with the bottom surface of the main valve body (1). The pressure plate (32) is pressed against the main valve body (1). ), the fastening screw (33) passes through the pressure plate (32), the valve cavity (11) of the main valve body (1), the positioning core (31) and the support plate (22), the fastening bolt (34) and the fastening screw (33) are threadedly connected, the pressure plate (32), the valve cavity (11) of the main valve body (1), the positioning core (31) and the support plate (22) are located between the two fastening bolts (34), the fastening bolt (34) located at the top abuts against the pressure plate (32), and the fastening bolt (34) located at the bottom abuts against the support plate (22); And an anti-rotation assembly (4) is used for circumferentially fixing the main valve body (1), and the anti-rotation assembly (4) is arranged on the bent plate body (2).
2. A plate bending tool for lathe machining the main valve body shaft hole according to claim 1, characterized in that: The support plate (22) is perpendicular to the clamping plate (21).
3. A plate bending tool for lathe machining the main valve body shaft hole according to claim 1, characterized in that: The top surface of the support plate (22) and the clamping plate (21) are connected via an upper reinforcing rib (23), the main valve body (1) is located between the two upper reinforcing ribs (23), and the bottom surface of the support plate (22) and the clamping plate (21) are connected via a lower reinforcing rib (24).
4. A plate bending tool for lathe machining the main valve body shaft hole according to claim 1, characterized in that: The support plate (22) is provided with a positioning groove (221), and a positioning portion (311) matching the positioning groove (221) is protruded from the bottom surface of the positioning core (31), and the positioning portion (311) is located in the positioning groove (221).
5. A plate bending tool for lathe machining the main valve body shaft hole according to claim 1, characterized in that: A docking portion (312) matching the valve cavity (11) of the main valve body (1) is protruded from the top surface of the positioning core (31), and a step surface (13) is protruded from the bottom plate of the valve cavity (11) of the main valve body (1), and the step surface (13) is in contact with the docking portion (312).
6. A plate bending tool for lathe machining the main valve body shaft hole according to claim 1, characterized in that: The anti-rotation assembly (4) comprises a mounting seat (41) and a limiting screw (42); the mounting seat (41) and the support plate (22) are fixedly connected; the limiting screw (42) and the mounting seat (41) are threadedly connected; and the limiting screw (42) abuts against the side tube (12) of the main valve body (1).
7. A plate bending tool for lathe machining the main valve body shaft hole according to claim 1, characterized in that: The positioning core (31) and the support plate (22) are fixedly connected.