A profile measuring tool
By designing a measuring tool for irregularly shaped parts, and utilizing the synergistic effect of the support base, measuring rod, sliding block, and positioning block, the problems of large measurement errors and deformation of irregularly shaped parts were solved, achieving high-precision measurement results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI RUIIRIDIUM YUANTONG TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional calipers are difficult to accurately measure irregularly shaped products, resulting in large measurement errors and easy deformation.
A measuring tool for irregularly shaped parts was designed, including a support base, a measuring rod, a sliding block, a contact plate, and a positioning block. The support base provides placement space, the measuring rod has scale lines, the sliding block drives the contact plate to move, and the positioning block fits against the inner wall, forming a stable clamping structure with inner wall positioning and outer wall fitting to ensure measurement accuracy.
It improves the accuracy of measuring irregularly shaped parts, avoids deformation, and achieves high-precision measurement results.
Smart Images
Figure CN224499299U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of measurement technology, and more specifically, it relates to a measuring tool for irregularly shaped parts. Background Technology
[0002] In modern industrial production and quality inspection, accurate measurement of product dimensions is crucial for ensuring product quality and meeting design requirements. However, traditional measurement methods face numerous challenges when dealing with irregularly shaped products. Currently, calipers, as a common measuring tool, are widely used in product dimension measurement due to their relatively simple operation and low cost. However, for irregularly shaped products, the limitations of calipers become increasingly apparent. The complex and varied surface contours of irregularly shaped products make it difficult for the caliper's measuring surface to completely align with the product surface, resulting in inaccurate selection of measurement points and thus significant measurement errors. Furthermore, irregularly shaped products are prone to deformation during measurement, further affecting measurement accuracy. Utility Model Content
[0003] The purpose of this utility model is to provide a measuring tool for irregularly shaped parts, so as to solve the technical problem of large measurement errors in the measurement of irregularly shaped products in the prior art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a measuring tool for irregularly shaped parts, comprising:
[0005] The support base is provided with a mounting groove and two bearing portions located on both sides of the mounting groove;
[0006] A measuring rod is installed above the mounting groove, and its two ends are respectively connected to the two bearing parts; the measuring rod is provided with scale lines arranged along the length direction;
[0007] A sliding block is slidably connected to the measuring rod; one end of the sliding block has a vertical surface for pointing towards the scale line;
[0008] A contact plate is arranged vertically and located within the mounting groove; the upper end of the contact plate is fixedly connected to the sliding block; the contact plate is used to abut against the outer surface of the workpiece under test.
[0009] A positioning block is installed in the mounting groove and located on one side of the contact plate; the positioning block is arranged close to the side wall of the mounting groove and has a bearing surface for fitting with the inner wall of the test piece.
[0010] In one possible implementation, the sliding block is provided with a downwardly extending connecting plate, and the contact plate is provided with a fixing block for connecting with the connecting plate and a fixing member installed on the fixing block.
[0011] In one possible implementation, the fixing block is located on the upper end of the contact plate away from the positioning block body. The fixing block has a receiving groove for accommodating the connecting plate and a first fixing hole arranged through it on the outer side. The connecting plate has a second fixing hole corresponding to the first fixing hole. The fixing member is a pin that is fitted into the first fixing hole and the second fixing hole.
[0012] In one possible implementation, the support base includes a base plate and two side plates respectively mounted on the upper sides of the base plate, the base plate and the two side plates forming the mounting groove; the two side plates are two bearing parts; the two ends of the measuring rod are respectively connected to the upper ends of the two side plates; the positioning block is placed on the base plate.
[0013] In one possible implementation, the upper end of the side plate is provided with an opening groove for accommodating the end of the measuring rod, and one side is provided with a connecting hole communicating with the opening groove and a clamping member installed in the connecting hole.
[0014] In one possible implementation, the connecting hole is a threaded hole, and the clamping element is a bolt threaded into the threaded hole.
[0015] In one possible implementation, both the base plate and the side plate are provided with process holes for weight reduction.
[0016] In one possible implementation, the sliding block is provided with a T-shaped groove that is slidably connected to the measuring rod, and the T-shaped groove extends through the sliding block; one side of the opening of the T-shaped groove is located on the same side as the scale line.
[0017] In one possible implementation, the bottom surface of the mounting groove is provided with an elongated limiting groove, and the lower end of the positioning block is provided with a protrusion that is slidably connected to the elongated limiting groove; the elongated limiting groove is arranged along the length direction of the measuring rod.
[0018] In one possible implementation, the measuring rod and the sliding block are respectively the main scale and vernier scale of the vernier caliper.
[0019] The beneficial effects of the irregular part measuring tool provided by this utility model are as follows: Compared with the prior art, the irregular part measuring tool of this utility model is composed of a support base, a measuring rod, a sliding block, a contact plate, and a positioning block. The components work together to form a precision measuring system: the support base serves as the basic structure, its mounting groove provides a space for the part to be measured, and the bearing parts on both sides provide stable support for the measuring rod; the measuring rod is horizontally mounted above the mounting groove, and the scale lines arranged along the length direction constitute a quantitative reference; the sliding block can slide freely along the measuring rod, and the vertical surface of one end serves as a scale reading reference surface to ensure accurate readings; the contact plate is vertically fixed to the lower end of the sliding block and extends into the mounting groove, and its outer surface is used to tightly abut against the outer surface of the part to be measured; the positioning block is installed in the mounting groove on the opposite side of the contact plate, and its bearing surface is designed according to the irregular inner wall contour of the part to be measured to ensure that the part to be measured will not deform during measurement. In practice, the irregularly shaped part to be measured is first placed in the mounting slot, ensuring that the inner wall of the workpiece is fully in contact with the bearing surface of the positioning block. Then, the sliding block is pushed laterally along the measuring rod, causing the contact plate to move synchronously until the outer side of the contact plate is in close contact with the outer surface of the workpiece. At this point, the scale value of the measuring rod pointed to by the vertical plane of the sliding block is the actual dimension of the workpiece in that measurement direction. The entire measurement process utilizes the bidirectional contact between the positioning block and the contact plate to create a stable clamping structure of "inner wall positioning - outer wall contact." This method, with the adaptive design of the bearing surface of the positioning block, prevents deformation of the workpiece during measurement. Furthermore, the movement of the sliding block causes the contact plate to move and contact the workpiece, improving the accuracy of the measured dimension. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 A schematic diagram of the structure of the irregular part measuring tool provided in the embodiment of this utility model;
[0022] Figure 2 A side view of the irregular-shaped part measuring tool provided in an embodiment of this utility model;
[0023] Figure 3 A schematic diagram of the contact plate provided in an embodiment of this utility model;
[0024] Figure 4 A partial connection diagram of the contact plate and the sliding block provided in an embodiment of this utility model;
[0025] Figure 5 This is a partial connection diagram of the base plate and the positioning block provided in an embodiment of the present utility model;
[0026] Figure 6 A cross-sectional view of the measuring rod and sliding block provided in an embodiment of this utility model.
[0027] The following are the labeling elements in the figure:
[0028] 10. Support base; 11. Mounting groove; 12. Base plate; 13. Side plate; 14. Opening groove; 15. Clamping component; 16. Long strip limiting groove; 20. Measuring rod; 21. Scale line; 30. Sliding block; 31. Vertical surface; 32. Connecting plate; 33. Second fixing hole; 34. T-slot; 40. Contact plate; 41. Fixing block; 42. Fixing component; 43. Receiving groove; 44. First fixing hole; 50. Positioning block; 51. Bearing surface; 52. Protrusion; 60. Component to be measured. Detailed Implementation
[0029] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0033] Please see Figures 1 to 6The measuring tool for irregularly shaped parts provided by this utility model will now be described. A measuring tool for irregularly shaped parts includes a support base 10, a measuring rod 20, a sliding block 30, a contact plate 40, and a positioning block 50. The support base 10 has a mounting groove 11 and two bearing portions located on both sides of the mounting groove 11. The measuring rod 20 is mounted above the mounting groove 11, and its two ends are respectively connected to the two bearing portions. The measuring rod 20 has scale lines 21 arranged along its length. The sliding block 30 is slidably connected to the measuring rod 20. One end of the sliding block 30 has a vertical surface 31 for pointing to the scale line 21. The contact plate 40 is arranged vertically and located in the mounting groove 11. The upper end of the contact plate 40 is fixedly connected to the sliding block 30. The contact plate 40 is used to abut against the outer surface of the part to be measured 60. The positioning block 50 is installed in the mounting groove 11 and located on one side of the contact plate 40. The positioning block 50 is arranged close to the side wall of the mounting groove 11 and has a bearing surface 51 for adapting to the inner wall of the part to be measured 60.
[0034] Compared with the prior art, the measuring tool for irregularly shaped parts provided by this utility model consists of a support base 10, a measuring rod 20, a sliding block 30, a contact plate 40, and a positioning block 50. These components work together to form a precision measuring system. The support base 10 serves as the basic structure, with its mounting groove 11 providing space for the part to be measured 60, and the two side bearing parts providing stable support for the measuring rod 20. The measuring rod 20 is horizontally mounted above the mounting groove 11, and the scale lines 21 arranged along its length form a quantitative reference. The sliding block 30 can slide freely along the measuring rod 20, and its vertical surface 31 at one end serves as a scale reading reference surface to ensure accurate readings. The contact plate 40 is vertically fixed to the lower end of the sliding block 30 and extends into the mounting groove 11, with its outer surface used to tightly abut against the outer surface of the part to be measured 60. The positioning block 50 is installed in the mounting groove 11 on the opposite side of the contact plate 40, and its bearing surface 51 is designed according to the contour of the irregular inner wall of the part to be measured 60 to ensure that the part to be measured 60 will not deform during measurement. In practical operation, the workpiece to be measured is first placed in the mounting groove 11, ensuring that the inner wall of the workpiece is fully in contact with the bearing surface 51 of the positioning block 50. Then, the sliding block 30 is pushed to move laterally along the measuring rod 20, causing the contact plate 40 to move synchronously until the outer surface of the contact plate 40 is in close contact with the outer surface of the workpiece 60. At this point, the scale value of the measuring rod 20 pointed to by the vertical surface 31 of the sliding block 30 is the actual dimension of the workpiece 60 in that measurement direction. The entire measurement process utilizes the bidirectional contact between the positioning block 50 and the contact plate 40 to construct a stable clamping structure of "inner wall positioning - outer wall contact". Through this method, and with the contour adaptation design of the bearing surface 51 of the positioning block 50, the workpiece 60 will not deform during measurement. Furthermore, the movement of the sliding block 30 causes the contact plate 40 to move and abut against the workpiece 60, improving the measurement accuracy of the measured dimension.
[0035] When installing the measuring rod 20, the "0" scale line 21 at one end of the measuring rod 20 is aligned with the side wall of the mounting groove 11. The vertical surface 31 is aligned with the side of the contact plate 40.
[0036] Please see Figure 1 , Figure 3 and Figure 4 As a specific embodiment of the irregular-shaped part measuring tool provided by this utility model, a stable and detachable connection structure is constructed between the sliding block 30 and the contact plate 40 by setting a downwardly extending connecting plate 32 on the sliding block 30, and simultaneously configuring a fixing block 41 and a fixing member 42 connected to the connecting plate 32 on the contact plate 40. During installation, the connecting plate 32 and the fixing block 41 are tightly fixed by the fixing member 42 (such as bolts and nuts), so that the contact plate 40 can move synchronously with the sliding block 30. This method facilitates the installation, disassembly, and replacement of the contact plate 40. When the contact plate 40 is worn or needs to be adapted to different measurement scenarios, it can be quickly replaced, improving the maintenance convenience and usage flexibility of the measuring tool.
[0037] Please see Figure 3 and Figure 4 As a specific embodiment of the irregular part measuring tool provided by this utility model, the fixing block 41 is located on the upper end of the contact plate 40 away from the positioning block 50. The fixing block 41 has a receiving groove 43 for accommodating the connecting plate 32, and a first fixing hole 44 is provided through the outer side. The connecting plate 32 has a second fixing hole 33 corresponding to the first fixing hole 44. The fixing member 42 is a pin that is fitted into the first fixing hole 44 and the second fixing hole 33. The fixing block 41 is located on the upper end of the contact plate 40 away from the positioning block 50, and its receiving groove 43 can be embedded into the connecting plate 32 on the sliding block 30. The first fixing hole 44 on the outer side corresponds to the second fixing hole 33 of the connecting plate 32 and is fixed by the pin. This structure realizes the detachable connection between the sliding block 30 and the contact plate 40, the receiving groove 43 ensures the accurate positioning of the connecting plate 32, and the pin connection facilitates quick assembly and disassembly.
[0038] Please see Figure 1 and Figure 2 As a specific embodiment of the irregular part measuring tool provided by this utility model, the support base 10 is a U-shaped structure formed by the base plate 12 and the two side plates 13. The interior of the U-shaped structure is a mounting groove 11. The side plates 13 also serve as load-bearing parts to support the measuring rod 20, and the positioning block 50 is placed on the base plate 12. This structure enables the support base 10 to form a stable frame, and the measuring rod 20 is easy to install. The mounting groove 11 provides a regular placement space for the part to be measured 60, the side plates 13 and the base plate 12 enhance the structural stability, and the positioning block 50 is easy to install, ensuring that the tool is stable as a whole during measurement and improving the measurement accuracy and reliability.
[0039] Please see Figure 1and Figure 2 As a specific embodiment of the irregular-shaped part measuring tool provided by this utility model, the upper end of the side plate 13 has an opening groove 14 for accommodating the end of the measuring rod 20, and one side has a connecting hole and a clamping member 15. During installation, the end of the measuring rod 20 is inserted into the opening groove 14, and the clamping member 15 is tightened to compress the measuring rod 20, fixing it in the groove. This structure enables quick installation and removal of the measuring rod 20, the opening groove 14 is accurately positioned, and the clamping member 15 ensures a stable connection. Furthermore, the measuring rod 20 is easy to install, can be adjusted or replaced as needed, and the connection is firm, preventing shaking during measurement and ensuring measurement accuracy and tool stability.
[0040] Preferably, the connecting hole is a screw hole, and the clamping member 15 is a bolt threaded into the screw hole.
[0041] As a specific embodiment of the irregular part measuring tool provided by this utility model, the process holes are distributed in the non-load-bearing critical areas of the base plate 12 and the side plate 13. This structure can reduce the overall weight of the tool, facilitate hand operation and handling, reduce operator fatigue, ensure the stability and rigidity of the support base 10, and balance lightweight and practicality.
[0042] Please see Figure 1 and Figure 6 As a specific embodiment of the irregular-shaped part measuring tool provided by this utility model, the sliding block 30 is provided with a through T-shaped groove 34 that slides in conjunction with the measuring rod 20. The opening of the T-shaped groove 34 is on the same side as the scale line 21. After the measuring rod 20 is inserted into the T-shaped groove 34, the sliding block 30 can slide smoothly along the rod, with the opening facing the scale line 21 for easy observation. This design makes the connection between the sliding block 30 and the measuring rod 20 stable and flexible. The T-shaped structure prevents the sliding block 30 from disengaging, ensuring that the sliding block 30 moves accurately along the measuring rod 20, facilitating scale reading, and improving the smoothness and accuracy of the measurement operation.
[0043] Please see Figure 1 and Figure 5 As a specific embodiment of the irregular part measuring tool provided by this utility model, the bottom surface of the mounting groove 11 is provided with a long strip limiting groove 16 along the length direction of the measuring rod 20, and the protrusion 52 at the lower end of the positioning block 50 can slide in the groove. During installation, the protrusion 52 is embedded in the limiting groove, so that the positioning block 50 can move and be positioned along the direction of the measuring rod 20. This structure enables the position adjustment of the positioning block 50, and its position can be adjusted according to the size of the part to be measured 60, which enhances the adaptability of the measuring tool to parts 60 of different specifications and improves its versatility. At the same time, the limiting groove ensures that the positioning block 50 is stable and does not deviate, ensuring the accuracy of the measurement reference.
[0044] Preferably, please refer to Figure 1As a specific embodiment of the irregular-shaped part measuring tool provided by this utility model, the measuring rod 20 and the sliding block 30 are respectively the main scale and vernier of the vernier caliper. The main scale and vernier of the vernier caliper serve as the measuring rod 20 and the sliding block 30, respectively, and the main scale graduations and vernier graduations cooperate to achieve precise readings. During measurement, the sliding vernier drives the contact plate 40 to move, and the dimension is read by aligning the main scale with the vernier scale line 21. Utilizing the mature precision measuring structure of the vernier caliper improves measurement accuracy, while the operator's familiarity with the vernier reading method lowers the barrier to entry, making the tool both highly precise and easy to operate.
[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A measuring tool for irregularly shaped parts, characterized in that, include: The support base is provided with a mounting groove and two bearing portions located on both sides of the mounting groove; A measuring rod is installed above the mounting groove, and its two ends are respectively connected to the two bearing parts; the measuring rod is provided with scale lines arranged along the length direction; A sliding block is slidably connected to the measuring rod; one end of the sliding block has a vertical surface for pointing towards the scale line; A contact plate is arranged vertically and located within the mounting groove; the upper end of the contact plate is fixedly connected to the sliding block; the contact plate is used to abut against the outer surface of the workpiece under test. A positioning block is installed in the mounting groove and located on one side of the contact plate; the positioning block is arranged close to the side wall of the mounting groove and has a bearing surface for fitting with the inner wall of the test piece.
2. The irregular-shaped part measuring tool as described in claim 1, characterized in that, The sliding block is provided with a downwardly extending connecting plate, and the contact plate is provided with a fixing block for connecting with the connecting plate and a fixing member installed on the fixing block.
3. The irregular-shaped part measuring tool as described in claim 2, characterized in that, The fixing block is located on the upper end of the contact plate away from the positioning block. The fixing block has a receiving groove for accommodating the connecting plate and a first fixing hole arranged through it on the outer side. The connecting plate has a second fixing hole corresponding to the first fixing hole. The fixing member is a pin that is connected to the first fixing hole and the second fixing hole.
4. The irregular-shaped part measuring tool as described in claim 1, characterized in that, The support base includes a base plate and two side plates respectively installed on the upper sides of the base plate. The base plate and the two side plates form the mounting groove. The two side plates are the two bearing parts. The two ends of the measuring rod are respectively connected to the upper ends of the two side plates. The positioning block is placed on the base plate.
5. The irregular-shaped part measuring tool as described in claim 4, characterized in that, The upper end of the side plate is provided with an opening groove for accommodating the end of the measuring rod, and one side is provided with a connecting hole communicating with the opening groove and a clamping member installed in the connecting hole.
6. The irregular-shaped part measuring tool as described in claim 5, characterized in that, The connecting hole is a threaded hole, and the clamping element is a bolt threaded into the threaded hole.
7. The irregular-shaped part measuring tool as described in claim 4, characterized in that, Both the base plate and the side plate are provided with process holes for weight reduction.
8. The irregular-shaped part measuring tool as described in claim 1, characterized in that, The sliding block is provided with a T-shaped groove that is slidably connected to the measuring rod, and the T-shaped groove is arranged through the sliding block; the opening side of the T-shaped groove is set on the same side as the scale line.
9. The irregular-shaped part measuring tool as described in claim 1, characterized in that, The bottom surface of the mounting groove is provided with a long strip limiting groove, and the lower end of the positioning block is provided with a protrusion that is slidably connected to the long strip limiting groove; the long strip limiting groove is arranged along the length direction of the measuring rod.
10. The irregular-shaped part measuring tool as described in claim 1, characterized in that, The measuring rod and the sliding block are the main scale and vernier scale of the vernier caliper, respectively.