Skirt sleeve opening symmetry degree detection device
By designing a skirt opening symmetry detection device, which utilizes the contact between a ball bearing and the inner wall and a dial indicator and the outer wall, the problems of low detection efficiency and insufficient accuracy in the existing technology are solved, and efficient and accurate skirt symmetry detection is achieved.
Patent Information
- Application Number
- CN202520581005.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing technology makes it difficult to quickly and accurately detect the symmetry of the HXN5 (GEVO) cylinder skirt, which may cause eccentricity when the piston reciprocates in the cylinder liner, leading to cylinder scoring accidents.
A device for detecting the symmetry of a skirt opening has been designed, including a fixing frame, a measuring component, and an abutment device. The device uses a ball bearing to abut against the inner wall of the skirt and a dial indicator to abut against the outer wall of the skirt. The maximum value is read and the difference is calculated by slowly moving the device. Combined with an adjustable fixing block and a measuring indicator fixing seat, the detection efficiency and accuracy are improved.
This greatly improves the efficiency and accuracy of skirt symmetry detection, prevents surface scratches, and ensures the stability and accuracy of the detection device.
Smart Images
Figure CN223826970U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of skirt opening draw symmetry detection device. BACKGROUND
[0002] HXN5 (GEVO) skirt is a thin-walled part with axial slope and radial oval, and the symmetry deviation may cause piston to reciprocate in the cylinder, resulting in eccentricity and cylinder pull. In view of the severity of the skirt cylinder pull accident, the skirt symmetry needs to be detected 100%.
[0003] When using three-coordinate detection, the efficiency is slow, and it is not practical for batch detection. When using a vernier caliper, the distance from the two sides of the opening to the outer circle is measured, and the difference between them is used as the symmetry. However, due to the existence of axial profile slope and radial special oval of the skirt, it cannot be guaranteed that the two sides of the axis are at the same height when detected by the vernier caliper, and the radial maximum value cannot be guaranteed, so the accuracy of the measurement cannot be guaranteed. UTILITY MODEL CONTENTS
[0004] The utility model aims to provide a kind of skirt opening draw symmetry detection device to solve the technical problems mentioned in the above background technology.
[0005] The technical scheme for achieving the utility model is: a kind of skirt opening draw symmetry detection device, including fixed frame and the measuring assembly being set on fixed frame, the measuring assembly includes measuring table, measuring table fixed seat, abutment device and fixed clamp, the measuring table is connected with fixed frame by measuring table fixed seat, the abutment device is connected with fixed frame by fixed clamp;The abutment device and measuring table are located on the same horizontal line, the abutment device and the inner side wall of skirt abut, and the measuring head of the measuring table abuts with the outer side wall of skirt.
[0006] The fixed frame includes fixed block and connecting rod, the fixed block is provided with two, the fixed block is sleeved on the connecting rod, and the position of the fixed block on the connecting rod is adjustable.
[0007] The abutment device includes T-shaped support and ball, the ball is rotatably arranged on the T-shaped support, the fixed clamp is sleeved on the connecting rod and the T-shaped support, and the position of the fixed clamp on the connecting rod and the T-shaped support is adjustable.
[0008] The ball is provided with two.
[0009] The fixed clamp is provided with a plurality of holes, and the center distance of the through holes through which the connecting rod and the T-shaped support pass on different fixed clamps is different.
[0010] The measuring table fixed seat includes universal table seat and lifting rod, the universal table seat is sleeved on the connecting rod, and the position of the universal table seat on the connecting rod is adjustable.
[0011] The lifting rod is vertically mounted on the universal joint base and its position can be adjusted vertically. The measuring instrument is fixed on the lifting rod.
[0012] By adopting the above technical solution, this utility model has the following beneficial effects:
[0013] (1) During the detection process of this utility model, the contact device abuts against the inner wall of the skirt, the probe of the measuring instrument abuts against the outer wall of the skirt, the device is moved slowly, the maximum value of the measuring instrument is read, and then the operation is repeated by turning 180°. The difference can be calculated. Compared with the traditional method, the detection efficiency and accuracy are greatly improved.
[0014] (2) The fixing block of this utility model is used to support the entire detection device. The position of the fixing block on the connecting rod is adjustable, which makes it easier to adjust the support position and ensure that the detection device is placed stably on the workpiece.
[0015] (3) The abutting device of this utility model includes a T-shaped bracket and a ball bearing. During measurement, the ball bearing abuts against the inner wall of the skirt to prevent scratches on the surface.
[0016] (4) The ball bearings of this utility model are set in two places, and the two-point support makes the positioning more stable and the measurement results more accurate.
[0017] (5) The fixing frame of this utility model has different through hole center distances, which, together with the adjustment of the measuring instrument fixing seat, can meet the positioning and measurement of different heights. Attached Figure Description
[0018] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...
[0019] Fig. 1 This is a front structural diagram of the present invention.
[0020] Fig. 2 This is a schematic diagram of the structure of this utility model.
[0021] Fig. 3 This is a schematic diagram of the structure of this utility model during measurement.
[0022] The labels in the attached diagram are as follows: 1. Fixing frame; 1-1. Fixing block; 1-2. Connecting rod; 2. Measuring component; 2-1. Measuring gauge; 2-2. Abutment device; 2-2. T-shaped bracket; 2-2-1. Ball bearing; 2-2-2. Fixing clamp; 2-3. Universal gauge base; 2-4. Lifting rod; 2-5. Detailed Implementation
[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0027] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., 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 utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this utility model and should not be used to limit the scope of protection of this utility model.
[0029] (Example 1)
[0030] See Figs. 1-3The skirt opening symmetry detection device of this embodiment includes a fixed frame 1 and a measuring component 2 mounted on the fixed frame 1. The measuring component 2 includes a measuring gauge 2-1, a measuring gauge fixing seat, a contact device 2-2, and a fixing clamp 2-3. The measuring gauge 2-1 is connected to the fixed frame 1 through the measuring gauge fixing seat, and the contact device 2-2 is connected to the fixed frame 1 through the fixing clamp 2-3. The contact device 2-2 and the measuring gauge 2-1 are located on the same horizontal line. The contact device 2-2 abuts against the inner side wall of the skirt, and the probe of the measuring gauge 2-1 abuts against the outer side wall of the skirt. In this embodiment, the measuring gauge 2-1 is a dial indicator.
[0031] Specifically, the fixing frame 1 includes a fixing block 1-1 and a connecting rod 1-2. Two fixing blocks 1-1 are provided, and each fixing block 1-1 is sleeved on the connecting rod 1-2. The position of the fixing block 1-1 on the connecting rod 1-2 is adjustable, facilitating adjustment of its support position and ensuring the testing device is stably placed on the workpiece. In this embodiment, the connecting rod 1-2 has external threads, and the fixing block 1-1 has internal threads. The fixing block 1-1 and the connecting rod 1-2 are connected by threads, allowing the fixing block 1-1 to be adjusted on the connecting rod 1-2. The fixing block 1-1 also has a locking structure; after adjusting the position, tightening the screws fixes the fixing block 1-1 and the connecting rod 1-2. This structure is existing technology and will not be described in detail here. The position adjustment structures described below can all adopt this structure.
[0032] The abutment device 2-2 includes a T-shaped bracket 2-2-1 and a ball bearing 2-2-2. The ball bearing 2-2-2 is rotatably mounted on the T-shaped bracket 2-2-1 and abuts against the inner wall of the skirt to prevent scratches on the surface. The fixing clip 2-3 is simultaneously fitted onto both the connecting rod 1-2 and the T-shaped bracket 2-2-1. The position of the fixing clip 2-3 on both the connecting rod 1-2 and the T-shaped bracket 2-2-1 is adjustable. Before measurement, adjust the position of the fixing clip 2-3 on the connecting rod 1-2 first, and then adjust the position of the T-shaped bracket 2-2-1 relative to the fixing clip 2-3.
[0033] In this embodiment, two ball bearings 2-2-2 are provided, and the two-point support makes the positioning more stable and the measurement results more accurate.
[0034] Multiple fixing clips 2-3 are provided, and the center distance of the through holes for the connecting rod 1-2 and the T-shaped bracket 2-2-1 to pass through is different on different fixing clips 2-3. When using them, different fixing clips 2-3 are selected according to the different heights to be measured.
[0035] The measuring instrument mounting base includes a universal base 2-4 and a lifting rod 2-5. The universal base 2-4 is sleeved on the connecting rod 1-2, and its position on the connecting rod 1-2 is adjustable. The lifting rod 2-5 is vertically mounted on the universal base 2-4 and its position can be adjusted vertically. The measuring instrument 2-1 is fixed on the lifting rod 2-5. By adjusting the outward-facing base and the lifting rod 2-5, the dial indicator probe is brought into contact with the desired measurement position on the outer wall of the skirt.
[0036] During testing, the ball bearing 2-2-2 abuts against the inner wall of the skirt, and the dial indicator probe abuts against the outer wall of the skirt. The device is moved slowly, the maximum value of the dial indicator is read, and then the operation is repeated by turning 180°. The difference can be calculated. Compared with the traditional method, the testing efficiency and accuracy are greatly improved.
[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A device for detecting the symmetry of the crotch opening of a skirt, characterized in that: The device includes a fixed frame (1) and a measuring component (2) mounted on the fixed frame (1). The measuring component (2) includes a measuring gauge (2-1), a measuring gauge mounting base, an abutment device (2-2), and a fixing clip (2-3). The measuring gauge (2-1) is connected to the fixed frame (1) via the measuring gauge mounting base, and the abutment device (2-2) is connected to the fixed frame (1) via the fixing clip (2-3). The abutment device (2-2) and the measuring gauge (2-1) are located on the same horizontal line. The abutment device (2-2) abuts against the inner wall of the skirt, and the probe of the measuring gauge (2-1) abuts against the outer wall of the skirt.
2. The skirt opening symmetry detection device according to claim 1, characterized in that: The fixing frame (1) includes a fixing block (1-1) and a connecting rod (1-2). There are two fixing blocks (1-1). The fixing block (1-1) is sleeved on the connecting rod (1-2). The position of the fixing block (1-1) on the connecting rod (1-2) is adjustable.
3. The skirt opening symmetry detection device according to claim 2, characterized in that: The abutment device (2-2) includes a T-shaped bracket (2-2-1) and a ball bearing (2-2-2). The ball bearing (2-2-2) is rotatably mounted on the T-shaped bracket (2-2-1). The fixing clip (2-3) is simultaneously sleeved on the connecting rod (1-2) and the T-shaped bracket (2-2-1). The position of the fixing clip (2-3) on the connecting rod (1-2) and the T-shaped bracket (2-2-1) is adjustable.
4. The skirt opening symmetry detection device according to claim 3, characterized in that: There are two balls (2-2-2).
5. The skirt opening symmetry detection device according to claim 3, characterized in that: Multiple fixing clips (2-3) are provided, and the center distance of the through holes on different fixing frames (1) for the connecting rod (1-2) and the T-shaped bracket (2-2-1) to pass through is different.
6. The skirt opening symmetry detection device according to claim 2, characterized in that: The measuring instrument mounting base includes a universal base (2-4) and a lifting rod (2-5). The universal base (2-4) is sleeved on the connecting rod (1-2), and the position of the universal base (2-4) on the connecting rod (1-2) is adjustable.
7. The skirt opening symmetry detection device according to claim 6, characterized in that: The lifting rod (2-5) is vertically mounted on the universal joint base (2-4) and its position can be adjusted vertically. The measuring instrument (2-1) is fixed on the lifting rod (2-5).