Measuring tool and measuring device for round cover parts

Abstract

The utility model belongs to the field of mechanical manufacturing, specifically related to a kind of round cover part's measuring tool and measuring equipment, measuring tool includes base and briquetting assembly, base is equipped with round hole, and it is suitable for through the outer wall of round hole and round cover part adaptation clamping;The number of briquetting assembly is multiple, multiple briquetting assembly is along the outer periphery of round hole and is arranged, each briquetting assembly includes connecting piece and the briquetting of sleeve joint in connecting piece, connecting piece is vertically installed in base, and the both ends of elastic member are respectively connected with connecting piece and briquetting;Wherein, briquetting has the fixed state and adjustment state of switching by lifting up, in fixed state, briquetting is pressed tightly round cover part under the action of elastic member.The utility model has realized the double fixing of support and ball cap, and further improved the stability of round cover part under the measuring state, to greatly improve the measuring efficiency in batch measurement.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical manufacturing, and specifically relates to a measuring fixture and measuring equipment for a round cover part. Background Technology

[0002] In the field of mechanical manufacturing, the measurement of round cap parts is a crucial step in ensuring their dimensional accuracy and functional performance. Current general-purpose measuring fixtures for round caps are typically adjustable clamping devices. While these devices can accommodate round cap parts of different sizes, their simple structure makes them unsuitable for the high-precision measurement requirements of parts of varying dimensions. Furthermore, measurement errors are easily introduced during the measurement process due to insecure clamping or external vibrations. In addition, these general-purpose measuring fixtures require adjustment before each measurement, increasing operation time and complexity. A single adjustment is insufficient to fully measure various data such as flatness, curvature, and dimensional accuracy, making them particularly inefficient for large-scale measurement and inspection.

[0003] Therefore, in view of the above shortcomings, this utility model is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a measuring fixture and measuring device for round cover parts, so as to at least partially solve the above-mentioned technical problems.

[0005] The first aspect of this utility model provides a measuring fixture for round cap parts, comprising:

[0006] The base has a circular hole and is adapted to be fitted and snapped into the circular cover part through the outer peripheral wall of the circular hole;

[0007] A plurality of pressure block assemblies are arranged along the outer periphery of the circular hole. Each pressure block assembly includes a connector, a pressure block fitted onto the connector, and an elastic element. The connector is vertically mounted on the base, and both ends of the elastic element are connected to the connector and the pressure block, respectively.

[0008] The pressure block has a fixed state and an adjustable state that can be switched by lifting it upwards. In the fixed state, the pressure block presses the round cover part tightly under the action of the elastic element.

[0009] The testing fixture for the round cap part proposed in this utility model may also have the following additional technical features:

[0010] In one specific embodiment of this utility model, it further includes positioning pins, the number of which is the same as the number of the pressure block assembly, and a plurality of positioning pins protruding from the base along the circumference of the circular hole.

[0011] The pressure block is provided with a positioning part that is adapted to the positioning pin. The pressure block and the connecting member are rotatably configured. In the fixed state, the positioning part is adapted to the positioning pin for positioning. In the adjustable state, the pressure block can rotate relative to the connecting member to avoid the circular hole.

[0012] In one specific embodiment of this utility model, the pressing block includes a main body and a pressing part. The main body is provided with the positioning part and a stepped hole for the connector to be inserted. The thickness of the pressing part is less than that of the main body and is connected to the side of the main body, and is suitable for pressing the round cover part.

[0013] In one specific embodiment of this utility model, the bottom surface of the pressing part is higher than the bottom surface of the main body to form a height difference.

[0014] In one specific embodiment of this utility model, a contoured surface is formed at the bottom corner of the pressing part away from the main body, and the contoured surface is adapted to be pressed and fitted with the arc surface of the round cover part.

[0015] In one specific embodiment of this utility model, an open groove extending from bottom to top is formed on the side of the main body away from the pressing part, and the open groove is formed as the positioning part.

[0016] In one specific embodiment of this utility model, the base is further provided with a plurality of U-shaped locking feet, which are evenly distributed along the circumferential sidewall of the circular hole, and the two sidewalls of the locking feet are adapted to fit and limit the position of the support feet of the circular cover part.

[0017] In one specific embodiment of this utility model, the top surface of the locking foot is coplanar with the top surface of the base, and the side wall of the circular hole located between the two side walls of the locking foot extends toward the center of the circular hole and is used to fit and engage with the circular cover part.

[0018] In one specific embodiment of this utility model, the base is further provided with a mounting hole, and the base is mounted on the operating table by fasteners passing through the mounting hole.

[0019] This utility model also provides a measuring device, including the measuring fixture for the round cover part described in any one of the above.

[0020] The measuring fixture for round cap parts provided by this utility model includes a base and a pressure block assembly. The base can be connected to the support legs of the round cap assembly by means of a circular hole. The pressure block assembly, by means of a connector, a pressure block, and an elastic element, can switch between an adjustable state and a fixed state, thereby facilitating the assembly of the round cap part with the base and fixing the round cap part. In other words, this utility model achieves dual fixing of the support legs and the ball cap, thereby improving the stability of the round cap part in the measurement state. This can improve the problems of low measurement accuracy, long time consumption, and limited measurable data in current round cap part measuring fixtures, and greatly improve the measurement efficiency in batch measurement. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a three-dimensional schematic diagram of the round cap part to be measured;

[0023] Figures 2-4 These are, respectively, a perspective view, a top view, and a bottom view of the measuring fixture according to an embodiment of this utility model;

[0024] Figure 5 This is a three-dimensional structural diagram of the pressure block assembly in an embodiment of this utility model;

[0025] Figures 6-7 These are cross-sectional schematic diagrams of the pressing state and the adjustment state of the pressure block assembly in the embodiments of this utility model;

[0026] Figures 8-10 Schematic diagram of the measuring tooling under different adjustment states;

[0027] Figure 11 This is a schematic diagram showing another usage state of the measuring tool under adjustment.

[0028] Figure 12 This is a schematic diagram showing the usage status of the measuring tool under clamping conditions.

[0029] Figure 13 for Figure 11 or Figure 12 Top view.

[0030] Explanation of reference numerals in the attached figures:

[0031] 100-Measuring fixture,

[0032] 10-Base, 11-Round hole, 12-Clamping foot, 13-Mounting hole;

[0033] 20-Pressure block assembly, 21-Pressure block, 22-Main body, 23-Clamping part, 24-Connector, 25-Elastic element, 26-Step hole, 27-Positioning part, 28-Following surface;

[0034] 30-Positioning pin;

[0035] 200-Round cap part, 201-Spherical cap, 202-Support leg, 203-Through groove. Detailed Implementation

[0036] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0037] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0038] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0039] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0040] The round cover part 200 to be clamped by the tooling in this embodiment of the utility model is referenced. Figure 1 As shown, it mainly includes a ball cap 201 and a plurality of legs 202 arranged circumferentially along the inner periphery of the ball cap 201. One end of each leg 202 is connected to the ball cap 201, and the other end extends away from the ball cap 201 along the axial direction of the round cover part 200. Each leg 202 has a through groove 203 on the side away from the axial center line of the round cover part 200, and the through groove 203 can be used to fit and snap with other parts.

[0041] Reference Figures 2-13 The first aspect of this utility model proposes a measuring fixture 100 for a round cover part 200, including a base 10 and a pressing block assembly 20. The base 10 is provided with a round hole 11, which is adapted to be fitted and snapped into the round cover part 200 through the outer peripheral wall of the round hole 11. There are multiple pressing block assemblies 20, which are arranged along the outer periphery of the round hole 11. Each pressing block assembly 20 includes a connector 24 and a pressing block 21 and an elastic member 25 sleeved on the connector 24. The connector 24 is vertically installed on the base 10. The two ends of the elastic member 25 are respectively connected to the connector 24 and the pressing block 21. The pressing block 21 has a fixed state and an adjustable state that can be switched by lifting upward. In the fixed state, the pressing block 21 presses the round cover part 200 under the action of the elastic member 25.

[0042] Specifically, the base 10 is generally formed as a rectangular plate, and a circular hole 11 is formed on the base 10. The support leg 202 of the round cover part 200 can be inserted into the circular hole 11 and engaged with the base 10 on the outer periphery of the circular hole 11 through the through groove 203, thereby realizing the engagement of the round cover part 200. Optionally, the thickness of the base 10 is not less than the height of the support leg 202 of the round cover part 200, so as to accommodate the support leg 202 of the round cover part 200 within the circular hole 11 without exceeding the bottom surface of the base 10.

[0043] Multiple pressure block assemblies 20 are arranged circumferentially along the circular hole 11. Preferably, there are three pressure block assemblies 20, evenly arranged circumferentially along the circular hole 11, which enables three-point fixation of the ball cap 201 of the part with the circular hole 11. Of course, in other embodiments, there can be two, four, five, etc., as long as the maximum central angle of at least two pressure block assemblies 20 relative to the circle of the circular hole 11 is not less than 180°.

[0044] In the pressure block assembly 20, the connector 24 is vertically mounted on the base 10. The pressure block 21 and the elastic member 25 are both fitted onto the connector 24, and the elastic member 25 is connected between the pressure block 21 and the connector 24. Thus, the pressure block 21 can be lifted away from the base 10 in a direction perpendicular to the base 10 under the action of external force to form an adjustment state. In this state, a space for the round cover part 200 to be installed is formed between the pressure block assembly 20 and the base 10. When the external force disappears, the pressure block assembly 20 can move towards the base 10 in a direction perpendicular to the base 10 under the action of the elastic member 25 to form a fixed state. In this state, the pressure block assembly 20 can press the ball cap 201 of the round cover part 200 under the action of the elastic member 25, thereby fixing the round cover part 200.

[0045] The measuring fixture 100 for the round cover part 200 provided in this embodiment includes a base 10 and a pressure block assembly 20. The base 10 can be snapped into place with the support leg 202 of the round cover assembly through a circular hole 11. The pressure block assembly 20 can switch between an adjustment state and a fixed state by providing a connector 24, a pressure block 21, and an elastic member 25. This facilitates the assembly of the round cover part 200 with the base 10 and fixes the round cover part 200. In other words, this embodiment achieves dual fixation of the support leg 202 and the ball cap 201, thereby improving the stability of the round cover part 200 in the measurement state. This improves the problems of low measurement accuracy, long time consumption, and limited measurable data in the current round cover part 200 measuring fixture 100, and greatly improves the measurement efficiency in batch measurement.

[0046] In some embodiments, a positioning pin 30 is also included. The number of positioning pins 30 is the same as the number of pressure block assemblies 20, and multiple positioning pins 30 protrude from the base 10 along the circumference of the circular hole 11. The pressure block 21 is provided with a positioning part 27 adapted to the positioning pin 30. The pressure block 21 and the connector 24 are rotatably arranged. In the fixed state, the positioning part 27 is adapted to the positioning pin 30 for positioning. In the adjusted state, the pressure block 21 can rotate relative to the connector 24 to avoid the circular hole 11.

[0047] Specifically, each positioning pin 30 corresponds to a positioning component and is located on the side of the positioning component away from the circular hole 11, and each positioning pin 30 protrudes partially from the upper surface of the base 10.

[0048] The pressure block 21 is rotatably mounted to the connector 24 and has a positioning part 27 that can be adapted to the positioning pin 30. When the pressure block 21 is fixed, it is adapted to the positioning pin 30 through the positioning part 27, so that the pressure block 21 and the connector 24 are circumferentially fixed, thereby ensuring the pressing state of the round cover part 200. When it is lifted from the fixed state and switched to the adjustment state, the positioning part 27 and the positioning pin 30 are separated. At this time, the pressure block 21 can be rotated to make the positioning part 27 and the positioning pin 30 misaligned. In the subsequent adjustment state, the pressure block 21 can rotate with the connector 24, and when it is rotated to a certain angle, it can avoid the round hole 11, thereby facilitating the connection between the round cover part 200 and the base 10.

[0049] The above-described configuration in this embodiment allows the pressure block 21 to be rotatably connected to the connector 24, and the positioning pin 30 to limit the fixed angle of the pressure block 21. This does not affect the fixation of the round cover part 200 of the pressure block 21, and at the same time, it allows the pressure block 21 to rotate in the adjustment state to facilitate the connection between the round cover part 200 and the base 10. This effectively reduces the requirement for the lifting stroke of the pressure block 21, thereby helping to reduce the size of the pressure block assembly 20.

[0050] In some embodiments, the pressure block 21 includes a main body 22 and a pressing part 23. The main body 22 is provided with a positioning part 27 and a stepped hole 26 for the connector 24 to be inserted. The thickness of the pressing part 23 is less than that of the main body 22, and it is connected to the side of the main body 22 and is suitable for pressing the round cover part 200.

[0051] Specifically, the axial direction of the stepped hole 26 is perpendicular to the base 10, and the diameter of the hole on the side closer to the base 10 is smaller than that on the other side. The connecting member 24 is formed as a bolt, and the elastic member 25 is formed as a spring. The diameter of the spring is smaller than the diameter of the nut in the bolt. The bolt with the spring is inserted from the large end of the stepped hole 26 and passes through the small end to connect with the base 10. Thus, when the pressure block 21 is lifted away from the base 10, the spring is compressed and deformed. When the external force disappears, the pressure block 21 moves closer to the base 10 under the elastic force of the spring and presses the round cover part 200.

[0052] Of course, in other embodiments, the main body 22 may also be formed as a blind hole with an opening facing the base 10, the blind hole being fitted onto the connector 24, and the elastic member 25 being connected between the connector 24 and the blind hole.

[0053] By making the thickness of the pressing part 23 smaller than that of the main body 22, it is possible to reduce the size of the pressing part 23, thereby reducing the obstruction of the round cover part 200 and facilitating measurement.

[0054] In some embodiments, the bottom surface of the clamping part 23 is higher than the bottom surface of the main body part 22 to form a height difference. This reduces the lifting stroke of the clamping part 23 when clamping the round cover part 200, thereby facilitating a further reduction in the volume of the clamping assembly.

[0055] In some embodiments, a contoured surface 28 is formed at the bottom corner of the clamping portion 23 away from the main body portion 22. The contoured surface 28 is adapted to be clamped and fitted with the arc surface of the round cover part 200. This helps to reduce wear on the round cover part 200 during clamping.

[0056] In some embodiments, an open groove extending upward is formed on the side of the main body 22 away from the pressing part 23, and the open groove is formed as a positioning part 27. By setting the positioning part 27 as an open groove on the side of the main body 22, it is easier to quickly identify the position of the positioning part 27, so as to facilitate the rapid positioning of the main body 22 and the positioning pin 30.

[0057] In some embodiments, the base 10 is also provided with a plurality of U-shaped locking feet 12, which are evenly distributed along the circumferential sidewall of the circular hole 11. The two sidewalls of the locking feet 12 are adapted to be matched and limited with the support feet 202 of the circular cover part 200.

[0058] Specifically, the number of locking feet 12 is the same as the number of supporting feet 202 of the round cover part 200, and their positions correspond one-to-one. The distance between the two side walls of the locking feet 12 is approximately equal to the circumferential width of the supporting feet 202 of the round cover part 200. In this way, the supporting feet 202 can be fixed between the locking feet 12, thereby realizing the circumferential positioning of the round cover part 200 and the base 10.

[0059] In this embodiment, the circumferential positioning of the round cover part 200 is achieved by setting the clamping foot 12, which can avoid relative rotation between the two during measurement, thereby improving the measurement progress.

[0060] In some embodiments, the top surface of the locking foot 12 is coplanar with the top surface of the base 10, and the side wall of the circular hole 11 located between the two side walls of the locking foot 12 extends towards the center of the circular hole 11 and is used to fit and engage with the circular cover part 200. This facilitates the placement of the ball cap 201 of the circular cover part 200 entirely within the circular hole 11, thereby enabling measurement of the circular cover part 200 from two axially opposite directions, and further improving measurement accuracy.

[0061] In some embodiments, the base 10 is further provided with mounting holes 13, and the base 10 is mounted to the operating table by fasteners passing through the mounting holes 13. Specifically, there are multiple mounting holes 13, which are located at the four corners of the base 10. This arrangement not only enables mounting to the operating table but also reduces interference with measurements.

[0062] This utility model also provides a measuring device, including a measuring fixture 100 for the round cover part 200 described above. The structure of the measuring fixture 100 is the same as described in the above embodiments. Since the measuring device provided in this embodiment includes the measuring fixture 100 for the round cover part 200 in all the above embodiments, it also has at least all the beneficial effects of the measuring fixture 100 described above.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A measuring fixture for a round cap part, characterized in that, include: The base has a circular hole and is adapted to be fitted and snapped into the circular cover part through the outer peripheral wall of the circular hole; A plurality of pressure block assemblies are arranged along the outer periphery of the circular hole. Each pressure block assembly includes a connector, a pressure block fitted onto the connector, and an elastic element. The connector is vertically mounted on the base, and both ends of the elastic element are connected to the connector and the pressure block, respectively. The pressure block has a fixed state and an adjustable state that can be switched by lifting it upwards. In the fixed state, the pressure block presses the round cover part tightly under the action of the elastic element.

2. The measuring fixture for the round cover part according to claim 1, characterized in that, It also includes positioning pins, the number of which is the same as the number of the pressure block assembly, and a plurality of the positioning pins protrude from the base along the circumference of the circular hole; The pressure block is provided with a positioning part that is adapted to the positioning pin. The pressure block and the connecting member are rotatably configured. In the fixed state, the positioning part is adapted to the positioning pin for positioning. In the adjustable state, the pressure block can rotate relative to the connecting member to avoid the circular hole.

3. The measuring fixture for the round cover part according to claim 2, characterized in that, The pressing block includes a main body and a pressing part. The main body is provided with the positioning part and a stepped hole for the connector to be inserted. The thickness of the pressing part is less than that of the main body and is connected to the side of the main body, and is suitable for pressing the round cover part.

4. The measuring fixture for the round cover part according to claim 3, characterized in that, The bottom surface of the clamping part is higher than the bottom surface of the main body part to form a height difference.

5. The measuring fixture for the round cover part according to claim 3, characterized in that, A contoured surface is formed at the bottom corner of the pressing part away from the main body, and the contoured surface is adapted to be pressed and fitted with the arc surface of the round cover part.

6. The measuring fixture for the round cap part according to claim 3, characterized in that, An open groove extending from bottom to top is formed on the side of the main body away from the pressing part, and the open groove is formed as the positioning part.

7. The measuring fixture for the round cap part according to claim 1, characterized in that, The base is also provided with a plurality of U-shaped locking feet, which are evenly distributed along the circumferential sidewall of the circular hole. The two sidewalls of the locking feet are adapted to fit and limit the position of the support feet of the circular cover part.

8. The measuring fixture for the round cover part according to claim 7, characterized in that, The top surface of the latch is coplanar with the top surface of the base, and the side wall of the circular hole located between the two side walls of the latch extends toward the center of the circular hole and is used to fit and engage with the circular cover part.

9. The measuring fixture for the round cover part according to claim 1, characterized in that, The base is also provided with mounting holes, and the base is mounted on the operating table by fasteners passing through the mounting holes.

10. A measuring device, characterized in that, Measuring fixtures for round cap parts as described in any one of claims 1-9.

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