Outer circle testing fixture compatible with multiple models of partition plates

Abstract

The utility model discloses an outer circle testing fixture compatible with multiple models of partition plates, which comprises a base, and the upper surface of the base is provided with a precision machining plane for placing the partition plates; a fixing support is connected to the edge of one side of the base and provided with a reference positioning face used for positioning the side face of the partition plate, and the reference positioning face is perpendicular to the precision machining plane. A movable meter frame is arranged on one side, opposite to the fixed bracket, of the base, and the movable meter frame is adjustably connected with the base; a measuring gauge outfit is installed on the movable gauge stand, the measuring end of the measuring gauge outfit faces the reference positioning face, and the measuring end and the reference positioning face are located on the two sides of the precision machining plane respectively. The scheme can quickly and accurately detect the excircle sizes of various different models of clapboards, improves the detection efficiency, and can remarkably reduce the enterprise cost compared with an external diameter caliper which needs various models.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece measurement and inspection tool technology, specifically relating to an outer circle inspection tool that is compatible with multiple types of partitions. Background Technology

[0002] In machining processes, partitions are common components, generally circular plates, and the accuracy of their outer diameter has a crucial impact on the overall product performance and assembly. Different models of partitions have different outer diameters, and traditional inspection tools are often only suitable for a single model. For example, current partition outer diameter dimensions are mostly measured using outer diameter calipers (such as...). Figure 2 The outer diameter caliper gauge shown is used for inspection. The outer diameter of the partition is limited by the go and stop ends of the caliper gauge. When producing multiple models of partitions, a large number of different inspection tools are required. This not only increases the company's equipment costs, but also occupies a lot of storage space and increases management costs. At the same time, the long production and return cycle of inspection tools and the frequent replacement of inspection tools also reduce product development efficiency, which is not conducive to the needs of large-scale, multi-model production. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an outer circle inspection tool that is compatible with multiple models of partitions, thereby solving the problem that existing inspection tools can only be used for a single model of partition, enabling rapid and accurate detection of the outer circle dimensions of multiple different models of partitions, reducing enterprise costs and improving detection efficiency.

[0004] According to the technical solution of this utility model, this utility model provides an outer cylindrical inspection fixture compatible with multiple types of partitions, including a base, the upper surface of which has a precision-machined plane for placing the partition; a fixed bracket is connected to one edge of the base, the fixed bracket has a reference positioning surface for positioning the side of the partition, the reference positioning surface is perpendicular to the precision-machined plane; a movable gauge holder is provided on the base on the side opposite to the fixed bracket, the movable gauge holder is adjustablely connected to the base; a measuring head is installed on the movable gauge holder, the measuring end of the measuring head faces the reference positioning surface, the measuring end and the reference positioning surface are respectively located on both sides of the precision-machined plane.

[0005] Furthermore, a guide rail is provided on the base, with the length direction of the guide rail being the line connecting the measuring end and the reference positioning surface. The movable dial indicator is slidably connected to the guide rail.

[0006] Furthermore, the guide rail has at least two parallel strip-shaped through holes, and the movable frame is provided with sliding posts corresponding to the guide rail. The sliding posts are matched and inserted into the guide rail to form a sliding connection. The end of the sliding post passes through the strip-shaped through hole of the guide rail and is threaded with a nut.

[0007] Furthermore, the measuring head is a dial indicator, which is fixedly mounted on a movable frame. The measuring rod of the dial indicator is telescopic and is connected to the pointer of the dial indicator. The end of the measuring rod is a measuring end, or a replaceable measuring end is movably connected to the movable frame and the end of the measuring rod is in contact with the measuring end.

[0008] Furthermore, the precision-machined plane protrudes from the upper surface of the base, and several strip-shaped grooves are distributed on the precision-machined plane. The two ends of the strip-shaped grooves are connected in the length direction, and the length direction of the strip-shaped grooves is perpendicular to the line connecting the measuring end and the reference positioning surface.

[0009] Furthermore, the base has a sliding mounting groove that matches the fixed bracket, and the fixed bracket is embedded in the sliding mounting groove; the surface of the fixed bracket facing the base and protruding from the upper surface of the base is the reference positioning surface.

[0010] Furthermore, the fixed bracket has vertical strip holes, and the sliding mounting groove of the base has bolt holes. The fixed bracket positioning bolts are inserted into the vertical strip holes and bolt holes.

[0011] Furthermore, the fixed bracket also has a limiting flange protruding towards one side of the base above the reference positioning surface.

[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0013] This utility model's compatible multi-model partition outer diameter gauge can be used to inspect partitions of different models with varying outer diameters and thicknesses. The movable gauge holder (measuring head) is horizontally adjustable to accommodate partitions of different outer diameters without requiring specific measurement dimensions. The movable gauge holder is connected to the base via a guide rail and can slide horizontally. It is preferably equipped with replaceable testing contacts to ensure accuracy. The fixed bracket is preferably vertically adjustable to accommodate partitions of different thicknesses. During use, the outer diameter of the partition is determined by comparing the data from the measuring head. Therefore, this solution can quickly and accurately inspect the outer diameter of various partition models, improving inspection efficiency and significantly reducing enterprise costs compared to requiring multiple models of outer diameter calipers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the inspection tool provided by this utility model.

[0015] Figure 2 This is a structural schematic diagram of an existing inspection tool, namely an outer diameter caliper.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Base; 2. Precision machined flat surface; 3. Fixed bracket; 4. Reference positioning surface; 5. Movable dial indicator frame; 6. Measuring head; 7. Measuring end; 8. Guide rail; 9. Sliding column; 10. Strip groove; 11. Vertical strip hole; 12. Fixed bracket positioning bolt; 13. Limiting flange. Detailed Implementation

[0018] This invention provides an outer diameter gauge compatible with multiple types of partitions, solving the problem that existing gauges can only be used for a single type of partition. It enables the rapid and accurate detection of the outer diameter dimensions of various partition types, reducing enterprise costs and improving detection efficiency.

[0019] Please see Figure 1 This utility model discloses an outer circular inspection fixture compatible with multiple types of partitions, comprising a base 1, which provides a stable support platform for the entire fixture, and the base is, for example, generally in the shape of a cuboid block. The upper surface of the base 1 has a precision-machined plane 2 for placing the partitions, and the upper surface of the precision-machined plane 2 is precision-machined to ensure flatness.

[0020] A fixed bracket 3 is connected to one edge of the base 1. The fixed bracket 3 has a reference positioning surface 4 for positioning the side of the partition. The reference positioning surface 4 is perpendicular to the precision machined plane 2. For example, the fixed bracket 3 is generally plate-shaped. The fixed bracket 3 is vertically connected to the edge of the rectangular block of the base. The fixed bracket 3 is exposed on the upper surface of the base 1, thus forming the reference positioning surface 4.

[0021] A movable dial indicator 5 is provided on the base 1 on the side opposite to the fixed bracket 3. The movable dial indicator 5 is adjustablely connected to the base 1 (e.g., a positionable sliding connection or a detachable connection with multiple optional mounting positions). A measuring head 6 is mounted on the movable dial indicator 5. The measuring end 7 of the measuring head 6 faces the reference positioning surface 4. The measuring end 7 and the reference positioning surface 4 are located on opposite sides of the precision machined plane 2.

[0022] More specifically, a guide rail 8 is provided on the base 1. The length direction of the guide rail 8 is the line connecting the measuring end 7 and the reference positioning surface 4. The movable dial indicator 5 is slidably connected to the guide rail 8. This adjustable sliding connection means that the dial indicator can be positioned and held at the desired location. For example, the guide rail 8 has at least two parallel strip-shaped through holes. The movable dial indicator 5 is provided with sliding posts 9 corresponding to the guide rail 8. The sliding posts 9 are inserted into the guide rail 8 to form a sliding connection. The end of the sliding post 9 protrudes from the strip-shaped through hole of the guide rail 8 and is threaded with a nut. Loosening the nut allows sliding, and tightening it to the desired position fixes the structure by contacting the nut with the base 1 (optionally with a washer).

[0023] It is conceivable that the adjustable sliding connection is not limited to this. For example, in other alternative embodiments, a screw-slider mechanism or positioning by set screws can be used to achieve the desired basic effect. Furthermore, the adjustable connection between the movable gauge holder 5 and the base 1 is not limited to the above scheme. For example, it can be selected as having several mounting holes with different selectable positions, thereby achieving discontinuous position adjustment through disassembly and assembly. The main purpose of the adjustable connection between the movable gauge holder 5 and the base 1 is to adjust the position of the measuring head 6. For some measuring heads with functions such as adjusting the position of the measuring end and zeroing, such as dial indicators, precise position adjustment through the movable gauge holder 5 is not required.

[0024] In some embodiments, the measuring head 6 is a dial indicator, which is fixedly mounted on a movable frame 5, for example, by a clamp structure with bolts to fix the sleeve portion of the dial indicator to the movable frame 5. The measuring rod of the dial indicator is telescopic and is connected to the pointer of the dial indicator through a transmission structure, such as a gear, thereby amplifying and reflecting the displacement of the measuring rod on the dial. The end of the measuring rod is the measuring end 7, which is usually a detection contact. Alternatively, a replaceable measuring end 7 may be movably connected to the movable gauge frame 5, with the end of the measuring rod in contact with the measuring end 7. The replaceable measuring end 7 may be, for example, a detection contact that slides with almost no friction, or the free end of an elastic cantilever (such as a metal sheet) fixed to the movable gauge frame 5. These structures can be displaced under external force and preferably have a certain limiting effect or the effect of changing the direction of the external force. Thus, the displacement is indirectly transmitted through this replaceable measuring end 7, compressing the measuring rod of the dial indicator, avoiding direct contact between the measuring rod of the dial indicator and the workpiece to be measured (i.e., the partition), and avoiding lateral friction and collision of the workpiece with the measuring rod. This effectively extends the service life of the dial indicator and this inspection tool and reduces replacement and maintenance costs.

[0025] like Figure 1 In the illustrated embodiment, the precision-machined plane 2 protrudes from the upper surface of the base 1, which facilitates the formation of the required high-precision plane, and the unmachined portion will not contact the workpiece or affect the parallelism of the workpiece placement. Furthermore, a plurality of strip-shaped grooves 10 are distributed on the precision-machined plane 2, with both ends of the strip-shaped grooves 10 passing through each other in the length direction, and the length direction of the strip-shaped grooves 10 being perpendicular to the line connecting the measuring end 7 and the reference positioning surface 4; these strip-shaped grooves 10 play a role in balancing air pressure, so that a large area of ​​vacuum will not be generated between the plate-shaped workpiece and the precision-machined plane 2, which would make it difficult for the plate-shaped workpiece to move.

[0026] Preferably, the base 1 has a sliding mounting groove that matches the fixed bracket 3, such as... Figure 1In the illustrated embodiment, the sliding mounting groove is a vertical groove of equal width at the top and bottom, located on the side of the base. The fixing bracket 3 is fitted into the sliding mounting groove in a matching manner; for example, the width of the fixing bracket 3 is the same as the width of the sliding mounting groove. The surface of the fixing bracket 3 facing the base 1 and protruding from the upper surface of the base 1 is the reference positioning surface 4. Preferably, the reference positioning surface 4 is also precision machined to ensure flatness and perpendicularity between the reference positioning surface 4 and the precision machined plane 2.

[0027] Furthermore, the fixed bracket 3 has vertical strip holes 11, for example, two parallel vertical strip holes 11 distributed horizontally. Bolt holes are provided in the sliding mounting groove of the base 1, and fixed bracket positioning bolts 12 are inserted into the vertical strip holes 11 and bolt holes. Thus, after loosening the fixed bracket positioning bolts 12, the fixed bracket 3 can be moved up and down for adjustment, and then the fixed bracket positioning bolts 12 can be tightened for positioning. This better accommodates partitions of various thicknesses. More preferably, the fixed bracket 3 also has a limiting flange 13 protruding towards the base 1 above the reference positioning surface 4, thereby blocking and limiting the upper part of the partition being measured. When the reference positioning surface 4 is compatible with the partition thickness, it is easier to quickly place the partition in place and avoid uneven placement of the partition.

[0028] In addition, the base 1 may have a structure that facilitates placement or fixed installation, such as bolt holes, so that the inspection tool can be fixedly installed at the quality inspection station by bolts, so that it does not need to be held by hand when performing quality inspection operations, making it more convenient and efficient.

[0029] One possible working method for this inspection tool is as follows: First, place the bottom surface of the standard calibration part (or sample) on the precision-machined plane 2. Adjust the tool so that the reference positioning surface 4 matches the calibration part (if the fixed bracket 3 is adjustable), ensuring that one side of the calibration part is in close contact with the reference positioning surface 4. Then, adjust the position of the movable dial indicator 5 and / or zero the measuring dial indicator 6 so that the measuring end 7 contacts the other side of the calibration part and the reading of the measuring dial indicator 6 is zero (or a certain set value). The line connecting the calibration part, the reference positioning surface 4, and the measuring end 7 is the outer diameter of the calibration part (due to the setting of the precision-machined plane 2 and the reference positioning surface 4, this connection line is guaranteed to be the diameter and there is no skew). Finally, remove the calibration part. This completes the preliminary preparation work for the inspection of a specific model of partition. During testing, the bottom surface of the partition to be tested is placed against one side of the precision machined plane 2 and initially positioned using the reference positioning surface 4. Then, the partition is moved (for example, along the length of the strip groove 10, so that the partition moves from one side of the precision machined plane 2 to the other side). The reading of the measuring head 6 is observed. The measuring head 6 can accurately measure the dimensional difference between the outer circle of the partition to be tested and the calibration part, thereby determining whether the outer circle dimension of the partition meets the requirements.

[0030] In summary, this utility model's compatible multi-model partition outer diameter gauge can be used to inspect different models of partitions with varying outer diameters and thicknesses. The movable gauge holder (measuring head) is horizontally adjustable to accommodate partitions of different outer diameters without requiring specific inspection dimensions. The movable gauge holder is connected to the base via a guide rail, allowing it to slide horizontally, and preferably features replaceable inspection contacts to ensure accuracy. The fixed bracket is preferably adjustable vertically, enabling inspection of partitions of varying thicknesses. During use, the outer diameter of the partition is determined by comparing the data from the measuring head. Therefore, this solution can quickly and accurately inspect the outer diameter of various partition models, improving inspection efficiency and significantly reducing enterprise costs compared to requiring multiple models of outer diameter calipers.

Claims

1. A circular gauge compatible with multiple types of partitions, characterized in that, The device includes a base (1) with a precision-machined plane (2) on the upper surface for placing a partition; a fixed bracket (3) is connected to one side edge of the base (1), and the fixed bracket (3) has a reference positioning surface (4) for positioning the side of the partition, which is perpendicular to the precision-machined plane (2); a movable meter holder (5) is provided on the base (1) on the side opposite to the fixed bracket (3), and the movable meter holder (5) is adjustablely connected to the base (1); a measuring head (6) is installed on the movable meter holder (5), and the measuring end (7) of the measuring head (6) faces the reference positioning surface (4), with the measuring end (7) and the reference positioning surface (4) located on opposite sides of the precision-machined plane (2).

2. The outer circle inspection fixture compatible with multiple types of partitions according to claim 1, characterized in that, The base (1) is provided with a guide rail (8). The length direction of the guide rail (8) is the line direction connecting the measuring end (7) and the reference positioning surface (4). The movable table frame (5) is slidably connected to the guide rail (8).

3. The outer circle inspection fixture compatible with multiple types of partitions according to claim 2, characterized in that, The guide rail (8) has at least two parallel strip-shaped through holes. The movable frame (5) is provided with a sliding post (9) corresponding to the guide rail (8). The sliding post (9) is inserted into the guide rail (8) to form a sliding connection. The end of the sliding post (9) passes through the strip-shaped through hole of the guide rail (8) and is threaded with a nut.

4. The outer circle inspection fixture compatible with multiple types of partitions according to claim 1, characterized in that, The measuring head (6) is a dial indicator, which is fixedly installed on the movable frame (5). The measuring rod of the dial indicator is telescopic and is connected to the pointer of the dial indicator. The end of the measuring rod is the measuring end (7), or, a replaceable measuring end (7) is movably connected to the movable frame (5) and the end of the measuring rod is in contact with the measuring end (7).

5. The external circular inspection fixture compatible with multiple types of partitions according to any one of claims 1-4, characterized in that, The precision-machined plane (2) protrudes from the upper surface of the base (1). Several strip grooves (10) are distributed on the precision-machined plane (2). The two ends of the strip grooves (10) are connected in the length direction. The length direction of the strip grooves (10) is perpendicular to the line connecting the measuring end (7) and the reference positioning surface (4).

6. The external circular inspection fixture compatible with multiple types of partitions according to any one of claims 1-4, characterized in that, The base (1) has a sliding mounting groove that matches the fixed bracket (3), and the fixed bracket (3) is embedded in the sliding mounting groove; the surface of the fixed bracket (3) facing the base (1) and exposed from the upper surface of the base (1) is the reference positioning surface (4).

7. The outer circle inspection fixture compatible with multiple types of partitions according to claim 6, characterized in that, The fixed bracket (3) has a vertical strip hole (11), and the base (1) has a bolt hole in the sliding mounting groove. The fixed bracket positioning bolt (12) is inserted into the vertical strip hole (11) and the bolt hole.

8. The external circular inspection fixture compatible with multiple types of partitions according to any one of claims 1-4, characterized in that, The fixed bracket (3) also has a limiting flange (13) protruding toward the base (1) above the reference positioning surface (4).

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