Turbine shell lining hole positioning detection tool
By designing a positioning and inspection fixture for turbine housing bushing holes, the problems of low inspection accuracy and complex operation of turbine housing bushing holes were solved, achieving rapid and accurate inspection results.
Patent Information
- Application Number
- CN202520344420.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Existing methods for inspecting turbine housing bushing bores suffer from low accuracy and complex operation. In particular, manual inspection has low accuracy, while automatic inspection is easily affected by external environmental interference.
A turbine housing bushing hole positioning and inspection fixture was designed, including a housing axial positioning mechanism, a position calibration mechanism, and an inspection mechanism. The turbine housing is positioned along its axial direction by the housing axial positioning mechanism, the position calibration mechanism is used to adjust the position of the bushing hole relative to the inspection mechanism, and the bushing hole accuracy and inner wall contour are inspected by inserting a channel.
It enables rapid and accurate detection of the turbine housing bushing hole position, contour, and inner wall flatness, improving detection accuracy and convenience.
Smart Images
Figure CN223691650U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to turbine shell bushing hole positioning detection technical field, specifically speaking, it is a kind of turbine shell bushing hole positioning detection frock. BACKGROUND
[0002] The rocker arm valve cover is a component used on the engine cylinder head, usually used with rocker arm assembly, for controlling the movement of intake and exhaust valves. The main function of the rocker arm valve cover is to fix the rocker arm and protect it from the external environment, while ensuring smooth airflow and sealing.
[0003] A bushing hole is generally provided on the turbine shell for subsequent assembly of the rocker arm valve cover. Since the rocker arm valve cover is a rotating part, the position of the bushing hole on the turbine shell and the flatness of its inner wall need to be accurately detected before assembly.
[0004] The existing detection is generally manual detection or automatic detection based on visual scheme. For the latter, the detection effect is easily affected by external environment interference when the camera collects images. The former has low detection accuracy.
[0005] Therefore, a special frock device is needed to ensure detection accuracy and convenience even with manual detection. INVENTION CONTENTS
[0006] The utility model aims at providing a kind of turbine shell bushing hole positioning detection frock to solve the problems of complex manual detection operation and low detection accuracy.
[0007] To solve the above problems, the utility model adopts the following technical means:
[0008] A turbine shell bushing hole positioning detection frock, comprising a workbench, the workbench is provided with shell axial positioning mechanism and the position calibration mechanism and detection mechanism arranged around the shell axial positioning mechanism;
[0009] The shell axial positioning mechanism is used to position the turbine shell along its axial direction, the position calibration mechanism is used to adjust the position of the bushing hole on the turbine shell relative to the detection mechanism, the detection mechanism is configured with an insertion channel that penetrates horizontally and is directed towards the turbine shell, and the insertion channel is used to insert the bushing hole accuracy detection part or the bushing hole inner wall profile detection part.
[0010] Preferably, the shell axial positioning mechanism comprises a base mounted on the top surface of the workbench and a pressing mechanism mounted on the top surface of the workbench, the top surface of the base is provided with a boss embedded in the bottom surface of the turbine shell, and the pressing end of the pressing mechanism is forced to act on the top surface of the turbine shell towards the boss.
[0011] Further, the pressing mechanism comprises a positioning rod vertically arranged on the top surface of the workbench, the top end of the positioning rod is rotatably mounted with a pressing mechanism, the moving direction of the pressing end of the pressing mechanism is arranged along the axis of the turbine shell, the pressing end of the pressing mechanism is mounted with a pressure rod with a rubber head at the bottom end, and the bottom end of the pressure rod is in abutment with the turbine shell.
[0012] Further, the position calibration mechanism comprises a vertically arranged mounting plate, at least one pair of micrometers is mounted on the mounting plate, the abutment end of the micrometer is arranged towards the shell axial positioning mechanism, the micrometers are horizontally arranged, the test end of each micrometer extends out of the mounting plate by the same distance, and the mounting plate is arranged in parallel with the connecting plane of the exhaust end of the turbine shell.
[0013] Further, the position calibration mechanism further comprises an abutment mechanism, the abutment mechanism comprises a positioning plate, a top rod is threadedly mounted on the positioning plate, the top rod is horizontally arranged, and the top rod is perpendicular to the micrometer, and the end of the top rod is used for abutting the side surface of the turbine shell on the side of the abutment surface of the micrometer.
[0014] Further, the detection mechanism comprises a limiting plate vertically mounted on the top surface of the workbench, and the insertion channel is formed in the limiting plate.
[0015] Further, the bushing hole accuracy detection part comprises a moving rod slidingly arranged in the insertion channel, the outer wall of the moving rod is in abutment with the inner wall of the insertion channel, one end of the moving rod towards the turbine shell is coaxially mounted with a detection block, the outer diameter of the detection block is the same as the inner diameter of the bushing hole of the turbine shell, and the detection block is coaxially arranged with the axis of the bushing hole of the turbine shell.
[0016] Further, the bushing hole inner wall profile detection part comprises a displacement rod slidingly arranged in the insertion channel, the outer wall of the displacement rod is in abutment with the inner wall of the insertion channel, and an inner diameter flatness detector is mounted at one end of the displacement rod away from the turbine shell, the detection end of the inner diameter flatness detector extends out from the one end of the displacement rod towards the turbine shell, and is in sliding abutment with the inner wall of the bushing hole of the turbine shell.
[0017] The utility model discloses in the process of using, has following beneficial effect:
[0018] When detecting the turbine shell with the bushing hole formed on the side wall, the turbine shell is vertically placed on the shell axial positioning mechanism, and the turbine shell is positioned by the shell axial positioning mechanism, and the bushing hole axis of the turbine shell side wall is kept in a horizontal state. Then the turbine shell is manually rotated, and the position calibration mechanism is used to represent whether the turbine shell to be detected is adjusted to a detection state, that is, whether the bushing hole of the turbine shell side wall has been coaxially arranged with the insertion channel of the detection mechanism. After the turbine shell is adjusted, the bushing hole accuracy detection part and the bushing hole inner wall profile detection part are respectively inserted through the insertion channel, and the test ends of the two are respectively inserted into the bushing hole of the turbine shell, so that the position, profile and inner wall flatness of the bushing hole of the turbine shell side wall are quickly and accurately detected. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a structure schematic diagram of the utility model under no-load state.
[0020] Figure 2 It is a structure schematic diagram of the utility model turbine shell assembly state.
[0021] Figure 3 It is a top view structure schematic diagram of the utility model. Figure 2
[0022] Figure 4 It is a side view structure schematic diagram of the utility model. Figure 2
[0023] Among them, 1 is a workbench, 2 is a shell axial positioning mechanism, 21 is a base, 22 is a pressing mechanism, 221 is a positioning rod, 222 is a pressing mechanism, 223 is a pressing rod, 23 is a boss, 3 is a position calibration mechanism, 31 is a mounting plate, 32 is a micrometer, 33 is a positioning plate, 34 is a top rod, 4 is a detection mechanism, 41 is an insertion channel, 42 is a limiting plate, 5 is a bushing hole accuracy detection part, 51 is a moving rod, 52 is a detection block, 6 is a bushing hole inner wall profile detection part, 61 is a displacement rod, and 62 is an inner diameter flatness detector. DETAILED DESCRIPTION
[0024] 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 described clearly and completely below in combination 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 the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents the preferred application of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0026] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.
[0027] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0028] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0030] Please refer to Figures 1 to 4 As shown in the figure, a turbine shell bush hole positioning detection tool, comprising a workbench 1, the workbench 1 is provided with a shell axial positioning mechanism 2 and a position calibration mechanism 3 and a detection mechanism 4 arranged around the shell axial positioning mechanism 2;
[0031] The shell axial positioning mechanism 2 is used to position the turbine shell along its axial direction, the position calibration mechanism 3 is used to adjust the position of the bushing hole on the turbine shell relative to the detection mechanism 4, and the detection mechanism 4 is configured with an insertion channel 41 which is horizontally through and is arranged towards the turbine shell, and the insertion channel 41 is used to insert the bushing hole accuracy detection part 5 or the bushing hole inner wall profile detection part 6.
[0032] In this way, when the turbine shell with the bushing hole configured on the side wall is detected, the turbine shell is vertically placed on the shell axial positioning mechanism 2, and the turbine shell is positioned by the shell axial positioning mechanism 2, and the bushing hole axis of the turbine shell side wall remains in a horizontal state. Then manually rotate the turbine shell, let the turbine shell rotate along its axis, and use the position calibration mechanism 3 to represent whether the turbine shell to be detected is adjusted to the detection state, that is, whether the bushing hole of the turbine shell side wall has been coaxially arranged with the insertion channel 41 of the detection mechanism 4. After the turbine shell is adjusted, the bushing hole accuracy detection part 5 and the bushing hole inner wall profile detection part 6 are respectively inserted through the insertion channel 41, and the test ends of the two are respectively inserted into the bushing hole of the turbine shell, so that the position, profile and inner wall flatness of the bushing hole of the turbine shell side wall can be quickly and accurately detected.
[0033] Further, the shell axial positioning mechanism 2 comprises a base 21 mounted on the top surface of the workbench 1 and a pressing mechanism 22 mounted on the top surface of the workbench 1, the top surface of the base 21 is provided with a boss 23, the boss 23 is embedded in the bottom surface of the turbine shell, and the pressing end of the pressing mechanism 22 is arranged towards the boss 23 and applies force to the top surface of the turbine shell.
[0034] More specifically, the pressing mechanism 22 comprises a positioning rod 221 vertically arranged on the top surface of the workbench 1, a pressing mechanism 222 is rotatably mounted at the top end of the positioning rod 221, the moving direction of the pressing end of the pressing mechanism 222 is arranged along the axis of the turbine shell, a pressure rod 223 with a rubber head at the bottom end is mounted on the pressing end of the pressing mechanism 222, and the bottom end of the pressure rod 223 abuts against the turbine shell.
[0035] In this way, when the turbine shell is vertically positioned, the turbine shell is placed on the base 21, the boss 23 is inserted into the inner wall of the turbine shell, the side wall of the boss 23 abuts against the inner wall of the turbine shell, and the boss 23 is arranged in a cylindrical shape matched with the turbine shell, and the turbine shell is pressed between the pressing mechanism 22 and the base 21 by the pressing mechanism 22, realizing the axial positioning of the turbine shell. In addition, the boss 23 can be used to facilitate the rotation of the turbine shell around the axis when adjusting the direction of the bushing hole on the side wall of the turbine shell in the subsequent process. Not only can it be stably rotated, but also it will not affect the axial positioning of the turbine shell by the shell axial positioning mechanism 2.
[0036] Further, the position calibration mechanism 3 comprises a vertically arranged mounting plate 31, at least one pair of micrometers 32 is mounted on the mounting plate 31, the abutting end of the micrometers 32 is positioned towards the shell axial positioning mechanism 2, the micrometers 32 are arranged horizontally, and the testing end of each micrometer 32 extends out of the mounting plate 31 by the same distance, and the mounting plate 31 is arranged parallel to the plane connecting the exhaust end of the turbine shell.
[0037] In this way, when the position calibration mechanism 3 is used to adjust the rotating position of the turbine shell, the testing end of the micrometers 32 abuts against the plane of the turbine shell for connecting the exhaust pipe, and by rotating the turbine shell, the display values of all the micrometers 32 are kept within a certain threshold range, which means that the position adjustment of the turbine shell is completed, and the detection of the bushing hole of the side wall of the turbine shell can be started.
[0038] More specifically, in order to facilitate the adjustment of the turbine shell in the vertically positioned state, and to enable fine adjustment of the turbine shell, the position calibration mechanism 3 further comprises an abutting mechanism, which comprises a positioning plate 33, a top rod 34 is threadedly mounted on the positioning plate 33, the top rod 34 is arranged horizontally, and the top rod 34 is perpendicular to the micrometers 32, and the end of the top rod 34 is used to abut against the side of the turbine shell on the side of the micrometers 32.
[0039] In this way, by rotating the top rod 34, the side wall of the turbine shell under the action of the top rod 34, and based on the fine adjustment of the threads, the top rod 34 exerts an eccentric force on the side wall of the turbine shell, so that the turbine shell can be rotated based on the pushing of the top rod 34 under the limiting action of the aforementioned boss 23, thereby enabling fine rotational adjustment of the turbine shell by the pushing rod.
[0040] Further, the detection mechanism 4 comprises a limiting plate 42 vertically mounted on the top surface of the workbench 1, and the insertion channel 41 is formed in the limiting plate 42.
[0041] Further, the bushing hole accuracy detection part 5 comprises a moving rod 51 slidingly arranged in the insertion channel 41, the outer wall of the moving rod 51 abuts against the inner wall of the insertion channel 41, and a detection block 52 is coaxially mounted on one end of the moving rod 51 towards the turbine shell, the outer diameter of the detection block 52 is the same as the inner diameter of the bushing hole of the turbine shell, and the detection block 52 is coaxially arranged with the axis of the bushing hole of the turbine shell.
[0042] The outer shape of the detection block 52 is matched with the inner wall of the bushing hole of the side wall of the turbine shell, and when the detection block 52 can be completely and smoothly inserted into the bushing hole, it means that the profile of the bushing hole is up to standard.
[0043] Meanwhile, the bush hole inner wall profile detection part 6 comprises a displacement rod 61 slidingly arranged in the insertion channel 41, an outer wall of the displacement rod 61 abutting against an inner wall of the insertion channel 41, an inner diameter flatness detector 62 being installed at an end of the displacement rod 61 away from the turbine shell, a detection end of the inner diameter flatness detector 62 extending out from the displacement rod 61 towards an end of the displacement rod 61 towards the turbine shell and slidingly abutting against the inner wall of the bush hole of the turbine shell.
[0044] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A turbine shell bushing hole location detection fixture, characterized by, Including workbench (1), the workbench (1) is equipped with shell axial positioning mechanism (2) and position calibration mechanism (3) and detection mechanism (4) around the shell axial positioning mechanism (2) layout arrangement; The shell axial positioning mechanism (2) is used for positioning the turbine shell along its axial direction, the position calibration mechanism (3) is used for adjusting the position of the bushing hole on the turbine shell compared with the detection mechanism (4), and the detection mechanism (4) is configured with an insertion channel (41) horizontally penetrating and arranged towards the turbine shell, and the insertion channel (41) is used for inserting a bushing hole accuracy detection part (5) or a bushing hole inner wall profile detection part (6).
2. The turbine shell bushing hole positioning inspection tool of claim 1, wherein, The shell axial positioning mechanism (2) includes a base (21) mounted on the top surface of the workbench (1) and a pressing mechanism (22) mounted on the top surface of the workbench (1), the top surface of the base (21) is provided with a boss (23), the boss (23) is embedded in the bottom surface of the turbine shell, and the pressing end of the pressing mechanism (22) is forced to act on the top surface of the turbine shell towards the boss (23).
3. The turbine shell bushing hole positioning inspection tool of claim 2, wherein, The pressing mechanism (22) includes a positioning rod (221) vertically arranged on the top surface of the workbench (1), a pressing mechanism (222) is rotatably mounted on the top end of the positioning rod (221), the moving direction of the pressing end of the pressing mechanism (222) is arranged along the axis of the turbine shell, a pressure rod (223) with rubber head is mounted on the pressing end of the pressing mechanism (222), and the bottom end of the pressure rod (223) abuts against the turbine shell.
4. The turbine shell bushing hole positioning inspection tool of claim 1, wherein, The position calibration mechanism (3) includes a vertically arranged mounting plate (31), at least one pair of micrometers (32) is mounted on the mounting plate (31), the abutting end of the micrometer (32) is arranged towards the shell axial positioning mechanism (2), the micrometers (32) are horizontally arranged, and the test end of each micrometer (32) extends out of the mounting plate (31) by the same distance, and the mounting plate (31) is arranged parallel to the connection plane of the exhaust end of the turbine shell.
5. The turbine shell bushing hole positioning inspection tool of claim 4, wherein, The position calibration mechanism (3) further comprises an abutting mechanism, the abutting mechanism comprises a positioning plate (33), a top rod (34) is threadedly mounted on the positioning plate (33), the top rod (34) is horizontally arranged, and the top rod (34) is perpendicular to the micrometer (32), and the end of the top rod (34) is used for abutting against the side surface of the turbine shell on the side of the micrometer (32).
6. The turbine shell bushing hole positioning inspection tool of claim 1, wherein, The detection mechanism (4) includes a limiting plate (42) vertically mounted on the top surface of the workbench (1), and the insertion channel (41) is formed in the limiting plate (42).
7. The turbine shell bushing hole positioning inspection tool of claim 1, wherein, The bushing hole accuracy detection part (5) includes a moving rod (51) slidingly arranged in the insertion channel (41), the outer wall of the moving rod (51) abuts against the inner wall of the insertion channel (41), one end of the moving rod (51) coaxially mounted with a detection block (52) towards the turbine shell, the outer diameter of the detection block (52) is the same as the inner diameter of the bushing hole of the turbine shell, and the detection block (52) is coaxially arranged with the axis of the bushing hole of the turbine shell.
8. The turbine shell bushing hole positioning inspection tool of claim 1, wherein, The bush hole inner wall profile detection part (6) comprises a displacement rod (61) slidingly arranged in the insertion channel (41), an outer wall of the displacement rod (61) abutting against an inner wall of the insertion channel (41), and an inner diameter flatness detector (62) installed at one end of the displacement rod (61) away from the turbine shell, a detection end of the inner diameter flatness detector (62) extending out from the one end of the displacement rod (61) toward the turbine shell and slidingly abutting against the inner wall of the bush hole of the turbine shell.