Measurement fixing device
By designing a support body, support block, and adjustment mechanism in coordination, the problem of non-perpendicularity of the shaft center during the measurement of small and precision shaft parts was solved, enabling rapid clamping and stable measurement, and improving the accuracy and efficiency of measurement.
Patent Information
- Application Number
- CN202423195981.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In the existing technology for measuring small and precision shaft parts, it is difficult to ensure that the shaft center is perpendicular to the worktable of the measuring equipment or parallel to the measuring light, resulting in large measurement errors and low efficiency.
A measuring and fixing device was designed, including a support body, a support block, a movable block and an adjustment mechanism. Through the cooperation of elastic elements and clamping grooves, the object to be measured can be quickly clamped and fixed.
It improves the accuracy and efficiency of measurement, ensures stable clamping of tiny precision shaft parts, and reduces measurement errors.
Smart Images
Figure CN223643565U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of detection and measurement technology, and specifically relates to a measuring fixing device. Background Technology
[0002] Miniature precision shaft parts require extremely high dimensional accuracy during manufacturing. The measurement accuracy of these parts directly impacts product quality. Proper placement and fixation of these parts are crucial for ensuring accurate and consistent measurement results during quality control. Current techniques typically involve placing the end face of the shaft part on a two-dimensional measuring instrument's stage to measure concentricity dimensions, or having operators attach the part to the surface using gauge blocks and double-sided tape. However, in mass production of shaft parts, it's difficult to ensure the shaft's axis is perpendicular to the measuring instrument's stage or parallel to the measuring light rays. This leads to incorrect placement, measurement errors, reduced accuracy, and low efficiency.
[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content
[0004] The technical problem to be solved by this utility model is the problem of poor measurement accuracy and low measurement efficiency.
[0005] To solve the above-mentioned technical problems, this utility model provides a measuring and fixing device. The measuring and fixing device includes a support body with a through groove and a positioning groove, a support block with a first clamping groove, a movable block, and an adjusting mechanism. The through groove and the positioning groove are connected. The support block is connected to the support body. One end of the movable block is provided with a second clamping groove. The second clamping groove and the first clamping groove enclose a clamping space. The adjusting mechanism includes a support plate connected to the support body and an elastic element connected to the support plate. One end of the elastic element passes through the through groove and is connected to the support plate. The other end of the elastic element is inserted into the positioning groove. The other end of the movable block extends into the through groove and is connected to one end of the elastic element. The other end of the movable block is located between the support plate and the positioning groove.
[0006] Optionally, the support body includes a bearing portion and two extension portions respectively connected to the bearing portion, the positioning groove is disposed in the bearing portion, the through groove is located between the two extension portions, and the support plate is respectively connected to the two extension portions.
[0007] Optionally, the extension includes two side surfaces and a connecting surface that is connected to the two side surfaces respectively. The two side surfaces are parallel, and the connecting surface is perpendicular to the side surfaces. The connecting surface is connected to the support plate through the connecting portion.
[0008] Optionally, the support block includes a first support end and a second support end connected to the first support end, the first clamping groove is disposed on the first support end, and the second support end is connected to the support body.
[0009] Optionally, the first clamping groove includes a first clearance groove and a first clamping groove communicating with the first clearance groove. The first clamping groove gradually expands in a direction away from the first clearance groove. The clamping groove is adjusted relative to the clamping space of the second clamping groove by adjusting the groove.
[0010] Optionally, the second clamping groove includes a second clearance groove and a second clamping groove communicating with the second clearance groove. The second clamping groove includes a first clamping surface and a second clamping surface respectively connected to the second clearance groove. The first clamping groove includes a third clamping surface parallel to the first clamping surface and a fourth clamping surface parallel to the second clamping surface. The first clearance groove, the second clearance groove, the first clamping surface, the second clamping surface, the third clamping surface, and the fourth clamping surface enclose the clamping space.
[0011] Optionally, the support block is provided on the protrusion, and an embedding step matching the protrusion is provided at one end of the movable block. The projection of the protrusion on the embedding step along the direction of the second clamping groove close to the first clamping groove is located within the embedding step.
[0012] Optionally, the elastic element includes an elastic part and a button part. One end of the elastic part passes through the through groove and is connected to the support plate, and the other end of the elastic part is connected to the other end of the movable block. One end of the button part passes through the positioning groove and is connected to the other end of the movable block.
[0013] Optionally, a limiting groove is provided at the other end of the movable block, the other end of the elastic part abuts against the limiting groove, and the other end of the elastic part is directly opposite the button part.
[0014] Optionally, the measuring fixing device further includes two fixing blocks respectively connected to the support body, the other end of the button part is located between the two fixing blocks, and when viewed along the length extension direction of the fixing blocks, the side of the two fixing blocks facing away from the support body is located on the same plane, and the other end of the button part is located between the plane and the support plate.
[0015] Beneficial effects:
[0016] This utility model provides a measuring and fixing device, which is connected to a support body via a support block. The support block has a first clamping groove, and one end of a movable block has a second clamping groove. The second clamping groove and the first clamping groove together form a clamping space. In the adjustment mechanism, a support plate is connected to the support body, and an elastic element is connected to the support plate. One end of the elastic element passes through a through groove in the support body and is connected to the support plate. The other end of the elastic element is inserted into a positioning groove in the support body. The other end of the movable block extends into the through groove and is connected to one end of the elastic element. The other end of the movable block is located between the support plate and the positioning groove. In this way, during the clamping and fixing of the object to be measured, the movable block is pushed along the through groove to continuously compress the elastic element located within the groove. At this time, one end of the movable block moves away from the support block, and the clamping space formed by the first clamping groove and the second clamping groove continuously increases. The object to be measured is then placed in the first clamping groove for initial positioning. After the movable block is released, the elastic element will restore its deformation, and the elastic element will push one end of the movable block gradually closer to the support block, causing the clamping space to continuously decrease. The second clamping groove located at one end of the movable block and the first clamping groove located on the support block will then conform to the object to be measured, achieving rapid clamping and fixing of the object to be measured, facilitating measurement. This achieves the technical effect of improving measurement accuracy and efficiency. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0018] Figure 1 This is a schematic diagram of a measuring and fixing device provided in an embodiment of the present utility model.
[0019] Figure 2 This is a schematic diagram of the adjustment mechanism in a measuring and fixing device provided in an embodiment of the present utility model.
[0020] Figure 3 This is a structural diagram of a support block and a movable block in a measuring and fixing device provided for an embodiment of the present utility model.
[0021] Figure 4 This is a schematic diagram of the structure of the support body in a measuring and fixing device provided in an embodiment of the present utility model.
[0022] Figure 5 This is a schematic diagram of the positioning groove in a measuring and fixing device provided in an embodiment of the present utility model.
[0023] The meanings of the reference numerals in the attached drawings are as follows: 1—Support body, 11—Through groove, 12—Positioning groove, 13—Bearing part, 14—Extension part, 141—Side side, 142—Connecting surface, 2—Support block, 21—First clamping groove, 211—First clearance groove, 212—First clamping groove, 2121—Third clamping surface, 2122—Fourth clamping surface, 22—First support end, 23—Second support end, 24—Protrusion, 3—Modible block, 31—Second clamping groove, 311—Second clearance groove, 312—Second clamping groove, 3121—First clamping surface, 3122—Second clamping surface, 32—Clamping space, 33—Embedded step, 34—Limiting groove, 4—Adjustment mechanism, 41—Support plate, 42—Elastic element, 421—Elastic part, 422—Button part, 5—Fixing block. Detailed Implementation
[0024] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.
[0025] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0026] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.
[0027] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.
[0028] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.
[0029] This utility model provides a measuring and fixing device, please refer to [link to relevant documentation]. Figures 1 to 5 As shown, Figure 1 This is a schematic diagram of the structure of a measuring and fixing device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the adjusting mechanism in a measuring and fixing device provided in an embodiment of this utility model. Figure 3 This is a schematic diagram of the structure of the support block and the movable block in a measuring and fixing device provided by an embodiment of this utility model. Figure 4 This is a schematic diagram of the structure of the support body in a measuring and fixing device provided in an embodiment of this utility model. Figure 5 This is a schematic diagram of the positioning groove in a measuring and fixing device provided in an embodiment of the present invention. The measuring and fixing device provided in this embodiment of the present invention includes a support body 1, a support block 2, a movable block 3, and an adjustment mechanism 4. The support body 1 has a through groove 11 and a positioning groove 12, which are interconnected. The support block 2 has a first clamping groove 21 and is connected to the support body 1. One end of the movable block 3 is provided with a second clamping groove 31, which, together with the first clamping groove 21, forms a clamping space 32. The adjustment mechanism 4 includes a support plate 41 and an elastic element 42. The support plate 41 is connected to the support body 1, and the elastic element 42 is connected to the support plate 41. One end of the elastic element 42 passes through the through groove 11 and is connected to the support plate 41, while the other end of the elastic element 42 is inserted into the positioning groove 12. The other end of the movable block 3 extends into the through groove 11 and is connected to one end of the elastic element 42. The other end of the movable block 3 is located between the support plate 41 and the positioning groove 12.
[0030] The clamping space 32 has a space to accommodate the object to be tested, including tiny precision shaft parts. The support block 2 and the support body 1 can be fixedly connected by bolts, welding, or other methods. The elastic element 42 includes a spring.
[0031] When it is necessary to clamp the object to be tested, the movable block 3 is manually pushed along the through groove 11 to compress the elastic element 42. At this time, the clamping space 32 enclosed by the first clamping groove 21 and the second clamping groove 31 gradually increases, making it easier to put the object to be tested into the groove. After releasing the movable block 3, the elastic element 42 restores its deformation and pushes the movable block 3 back to its original position, causing the clamping space 32 to gradually decrease until the object to be tested is clamped.
[0032] In this embodiment, the support block 2 is connected to the support body 1. The support block 2 has a first clamping groove 21, and one end of the movable block 3 is provided with a second clamping groove 31. The second clamping groove 31 and the first clamping groove 21 enclose a clamping space 32. In the adjustment mechanism 4, the support plate 41 is connected to the support body 1, and the elastic member 42 is connected to the support plate 41. One end of the elastic member 42 passes through the through groove 11 located in the support body 1 and is connected to the support plate 41. The other end of the elastic member 42 is inserted into the positioning groove 12 located in the support body 1. The other end of the movable block 3 extends into the through groove 11 and is connected to one end of the elastic member 42. The other end of the movable block 3 is located between the support plate 41 and the positioning groove 12. In this way, during the clamping and fixing of the object to be measured, the movable block 3 is pushed along the through groove 11 to continuously compress the elastic element 42 located within the through groove 11. At this time, one end of the movable block 3 moves away from the support block 2, and the clamping space 32 formed by the first clamping groove 21 and the second clamping groove 31 continuously increases. The object to be measured is then placed on the first clamping groove 21 for initial positioning. After the movable block 3 is released, the elastic element 42 will restore its deformation, and the elastic element 42 will push one end of the movable block 3 gradually closer to the support block 2, causing the clamping space 32 to continuously decrease. The second clamping groove 31 located at one end of the movable block 3 and the first clamping groove 21 located on the support block 2 will fit against the object to be measured, achieving rapid clamping and fixing of the object to be measured, facilitating measurement of the object. This achieves the technical effect of improving measurement accuracy and increasing measurement efficiency.
[0033] In one embodiment, the support 1 includes a bearing portion 13 and two extension portions 14, which are respectively connected to the bearing portion 13. A positioning groove 12 is disposed on the bearing portion 13, and a through groove 11 is located between the two extension portions 14. A support plate 41 is respectively connected to the two extension portions 14. The bearing portion 13 and the two extension portions 14 can be integrally formed. The through groove 11 located between the two extension portions 14 allows the movable block 3 and the elastic element 42 to move smoothly within the through groove 11. During the process of clamping and fixing the object to be tested, pushing the movable block 3 along the through groove 11 will compress the elastic element 42, causing one end of the movable block 3 to move away from the support block 2, increasing the clamping space 32. After the object to be tested is placed on the first clamping groove 21 for initial positioning, the movable block 3 is released, the elastic element 42 recovers its deformation, and the movable block 3 is pushed back to its original position, reducing the clamping space 32. The object to be tested is then securely clamped between the first clamping groove 21 and the second clamping groove 31, making the clamping process more stable and reliable.
[0034] In some embodiments, the extension 14 includes a connecting surface 142 and two side surfaces 141. The connecting surface 142 is connected to the two side surfaces 141 respectively, the two side surfaces 141 are parallel to each other, and the connecting surface 142 is perpendicular to the side surfaces 141. With the connecting surface 142 perpendicular to the side surfaces 141, the clamping angle between the connecting surface 142 and the side surfaces 141 is 90°. Depending on the measurement needs of the object to be measured, such as after the connecting surface 142 is attached to the support plane, it can be rotated so that the side surfaces 141 are attached to the support plane, enabling measurement of different angles of the object to be measured. This avoids secondary clamping or changing of fixtures, thus improving measurement efficiency. In a preferred embodiment, the connecting surface 142 can be connected to the support plate 41 via a connecting part, which may include bolts, rivets, or adhesive. Alternatively, the connecting surface 142 can also be directly connected to the support plate 41, such as by integrally forming the connecting surface 142 and the support plate 41.
[0035] In some embodiments, the support block 2 includes a first support end 22 and a second support end 23, with the second support end 23 connected to the first support end 22. A first clamping groove 21 is disposed on the first support end 22, and the second support end 23 is connected to the support body 1. The first clamping groove 21 of the support block 2 is disposed on the first support end 22 and is used to clamp the object to be measured. The second support end 23 is connected to the support body 1 and is used to ensure the stable installation of the support block 2. During the clamping process of the object to be measured, the first clamping groove 21 can closely conform to the shape of the object to be measured, achieving stable clamping. At the same time, the connection between the second support end 23 and the support body 1 ensures the stability of the entire device, making the clamping process more flexible and reliable, and suitable for objects to be measured of different shapes and sizes.
[0036] In some embodiments, the first clamping groove 21 includes a first clearance groove 211 and a first clamping groove 212. The first clamping groove 212 communicates with the first clearance groove 211. The first clamping groove 212 gradually expands along the direction away from the first clearance groove 211, so that when clamping the object to be measured, the first clamping groove 212 can gradually conform to the shape of the object to be measured, achieving a tighter clamping. During the clamping process, the object to be measured is first placed into the first clearance groove 211 for initial positioning. Then, as the movable block 3 moves, the first clamping groove 212 gradually conforms to the object to be measured, achieving stable clamping. This not only improves the stability of the clamping but also makes the clamping process smoother. It should be noted that the first clamping groove 212 can be adjusted relative to the clamping space 32 of the second clamping groove 31 via the adjustment groove. The adjustment groove refers to the space located between the movable block 3 and the support block 2 near the end where the object to be measured is clamped. This adjustment groove is located between the first clamping groove 212 and the second clamping groove 31. For example, the first clamping groove 212, the second clamping groove 31, and the adjustment groove can be used to enclose and form a clamping space 32 for placing the object to be measured. That is, when the movable block 3 and the support block 2 are pushed away from each other, the internal space of the adjustment groove gradually increases, so that the clamping space 32 for placing the object to be measured will gradually increase, making it easier to place an object of the appropriate size. When the movable block 3 and the support block 2 are brought closer together, the internal space of the adjustment groove gradually decreases, so that the clamping space 32 for placing the object to be measured will gradually decrease until the object to be measured is clamped and fixed.
[0037] In some embodiments, the second clamping groove 31 includes a second clearance groove 311 and a second clamping groove 312. The second clamping groove 312 communicates with the second clearance groove 311. The second clamping groove 312 includes a first clamping surface 3121 and a second clamping surface 3122. The first clamping surface 3121 and the second clamping surface 3122 are respectively connected to the second clearance groove 311. The first clamping groove 212 includes a third clamping surface 2121 and a fourth clamping surface 2122. The third clamping surface 2121 is parallel to the first clamping surface 3121, and the fourth clamping surface 2122 is parallel to the second clamping surface 3122. The first clearance groove 211, the second clearance groove 311, the first clamping surface 3121, the second clamping surface 3122, the third clamping surface 2121, and the fourth clamping surface 2122 enclose the clamping space 32. During the clamping process, as the movable block 3 moves, the first clamping surface 3121 and the second clamping surface 3122 of the second clamping groove 312 gradually come into contact with the object to be measured. At the same time, the third clamping surface 2121 and the fourth clamping surface 2122 of the first clamping groove 212 also come into close contact with the object to be measured, realizing all-round, multi-point clamping. This not only improves the stability of clamping, but also makes it suitable for objects of different shapes and sizes.
[0038] In some embodiments, a protrusion 24 is provided on the support block 2, and an embedded step 33 is provided at one end of the movable block 3. The embedded step 33 matches the protrusion 24. The projection of the protrusion 24 on the embedded step 33 along the direction of the second clamping groove 31 close to the first clamping groove 21 is located inside the embedded step 33. This allows the movable block 3 to cooperate more stably with the support block 2 during movement, which helps prevent relative wobbling between the movable block 3 and the support block 2. During the clamping of the object to be measured, as the movable block 3 moves along the through groove 11, the embedded step 33 and the protrusion 24 cooperate tightly, ensuring the stable change of the clamping space 32. When the movable block 3 is released, the elastic element 42 pushes the movable block 3 to reset. The tight cooperation between the protrusion 24 and the embedded step 33 allows the clamping space 32 to decrease quickly and accurately, achieving a firm clamping of the object to be measured, which helps improve the stability of the clamping.
[0039] In some embodiments, the elastic element 42 includes an elastic portion 421 and a button portion 422. One end of the elastic portion 421 passes through the through groove 11 and is connected to the support plate 41, while the other end of the elastic portion 421 is connected to the other end of the movable block 3. One end of the button portion 422 passes through the positioning groove 12 and is connected to the other end of the movable block 3. During the clamping of the object to be measured, the operator can press the button portion 422 to compress the elastic portion 421, pushing the movable block 3 to move and increasing the clamping space 32. When the object to be measured is placed into the first clamping groove 21, the button portion 422 is released, the elastic portion 421 returns to its original shape, pushing the movable block 3 to reset, the clamping space 32 decreases, and the object to be measured is securely clamped between the first clamping groove 21 and the second clamping groove 31. The button portion 422 makes it easier for the operator to perform measurements, thus improving ease of use.
[0040] In some embodiments, a limiting groove 34 is provided at the other end of the movable block 3, and the other end of the elastic part 421 abuts against the inside of the limiting groove 34, with the other end of the elastic part 421 facing the button part 422. This allows the elastic part 421 to more stably push the movable block 3 during compression and recovery deformation. At the same time, the limiting groove 34 prevents the elastic part 421 from shifting or wobbling during the movement of the movable block 3, ensuring stable changes in the clamping space 32. Furthermore, the elastic part 421 facing the button part 422 allows the operator to more intuitively feel the compression and recovery process of the elastic part 421, improving the intuitiveness of use.
[0041] In some embodiments, the measuring and fixing device provided by this utility model further includes two fixing blocks 5, which are respectively connected to the support body 1. The other end of the button part 422 is located between the two fixing blocks 5. When viewed along the length extension direction of the fixing blocks 5, the side 141 of the two fixing blocks 5 facing away from the support body 1 is located on the same plane, and the other end of the button part 422 is located between the plane and the support plate 41. The two fixing blocks 5 and the support body 1 can be integrally formed. The two fixing blocks 5 can provide support to the support body 1 from both sides of the other end of the button part 422, such as placing the two fixing blocks 5 on the support plane. The operator can press the button part 422 located between the two fixing blocks 5 to compress the elastic part 421, push the movable block 3 to move, and clamp the object to be measured. At the same time, the fixing blocks 5 and the support plate 41 also provide stable support for the button part 422, which not only improves the convenience of use, but also helps to improve the accuracy and efficiency of measurement.
[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0043] The above embodiments merely illustrate preferred implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention should be determined by the appended claims.
Claims
1. A measuring and fixing device, characterized in that, The measuring and fixing device includes a support body with a through groove and a positioning groove, a support block with a first clamping groove, a movable block, and an adjustment mechanism. The through groove and the positioning groove are connected. The support block is connected to the support body. One end of the movable block is provided with a second clamping groove. The second clamping groove and the first clamping groove enclose a clamping space. The adjustment mechanism includes a support plate connected to the support body and an elastic element connected to the support plate. One end of the elastic element passes through the through groove and is connected to the support plate. The other end of the elastic element is inserted into the positioning groove. The other end of the movable block extends into the through groove and is connected to one end of the elastic element. The other end of the movable block is located between the support plate and the positioning groove.
2. The measuring and fixing device according to claim 1, characterized in that, The support body includes a bearing portion and two extension portions respectively connected to the bearing portion. The positioning groove is disposed in the bearing portion, the through groove is located between the two extension portions, and the support plate is respectively connected to the two extension portions.
3. The measuring and fixing device according to claim 2, characterized in that, The extension includes two side surfaces and connecting surfaces that are connected to the two side surfaces respectively. The two side surfaces are parallel, and the connecting surfaces are perpendicular to the side surfaces. The connecting surfaces are connected to the support plate through the connecting portion.
4. The measuring and fixing device according to claim 1, characterized in that, The support block includes a first support end and a second support end connected to the first support end. The first clamping groove is disposed on the first support end, and the second support end is connected to the support body.
5. The measuring and fixing device according to claim 4, characterized in that, The first clamping groove includes a first clearance groove and a first clamping groove communicating with the first clearance groove. The first clamping groove gradually expands in the direction away from the first clearance groove. The clamping groove is adjusted relative to the clamping space of the second clamping groove by adjusting the groove.
6. The measuring and fixing device according to claim 5, characterized in that, The second clamping groove includes a second clearance groove and a second clamping groove communicating with the second clearance groove. The second clamping groove includes a first clamping surface and a second clamping surface respectively connected to the second clearance groove. The first clamping groove includes a third clamping surface parallel to the first clamping surface and a fourth clamping surface parallel to the second clamping surface. The first clearance groove, the second clearance groove, the first clamping surface, the second clamping surface, the third clamping surface and the fourth clamping surface enclose the clamping space.
7. The measuring and fixing device according to claim 1, characterized in that, The support block is provided on the protrusion, and an embedded step matching the protrusion is provided at one end of the movable block. The projection of the protrusion on the embedded step along the direction of the second clamping groove close to the first clamping groove is located within the embedded step.
8. The measuring and fixing device according to claim 1, characterized in that, The elastic element includes an elastic part and a button part. One end of the elastic part passes through the through groove and is connected to the support plate. The other end of the elastic part is connected to the other end of the movable block. One end of the button part passes through the positioning groove and is connected to the other end of the movable block.
9. The measuring and fixing device according to claim 8, characterized in that, A limiting groove is provided at the other end of the movable block, and the other end of the elastic part abuts against the limiting groove, with the other end of the elastic part facing the button part.
10. The measuring and fixing device according to claim 8, characterized in that, The measuring and fixing device further includes two fixing blocks that are respectively connected to the support body. The other end of the button part is located between the two fixing blocks. When viewed along the length extension direction of the fixing blocks, the two fixing blocks are located on the same plane on the side opposite to the support body. The other end of the button part is located between the plane and the support plate.