Radian measuring tool for cambered surface of square inner core
By designing a workstory for square measuring measuring, the problem of inaccurate measurement caused by position deviation caused by the traditional measurement method is solved, and higher measurement accuracy and reliability are achieved.
Patent Information
- Application Number
- CN202421145207.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-24
AI Technical Summary
Traditional R-angle measurement methods are prone to inaccurate measurement due to measurement position deviation when measuring square inner core arc surfaces.
The arc measurement of a square inner core curved surface is designed, including the base of the base, the arc measuring instrument, the square core installation slot and the sliding hand. Essence
Effectively avoid the inaccurate arc measurement caused by position deviation in traditional artificial measurement, which improves the accuracy and reliability of measurement.
Smart Images
Figure CN222419019U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of measuring tools and apparatuses, in particular to a radian measuring tool for a square inner core camber surface. Background Art
[0002] In order to check the matching degree between the product and the design, grasp the R angle (arc angle) of the mold / fixture in real time, that is, the radius of the transition arc at the intersection of two straight lines, and ensure the appearance of the product, it is necessary to measure and judge the R angles of the parts and molds / fixtures. Traditional R angle measurement usually requires the staff to hold the workpiece and the arc measuring instrument in both hands, move the arc measuring instrument to the corresponding position of the workpiece until the measuring rod of the arc measuring instrument cannot move, and the indicator on the measuring rod will display the value.
[0003] If the R angle of the square inner core arc surface is directly measured in the above-mentioned traditional way, inaccurate measurement results will often be caused due to measurement position deviation. Utility Model Content
[0004] The utility model aims to provide a tool for measuring the radian of a square inner core camber surface, so as to solve the problems raised in the background technology.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] Compared with the prior art, the beneficial effects of the utility model are:
[0007] A radian measurement tool for the radian surface of a square inner core is based on a radian measuring instrument and includes a two-legged bracket and a measuring rod with an indicator, the measuring rod is inserted in the middle of the two-legged bracket, the radian measurement tool includes a base, a first mounting groove matching the square inner core and a second mounting groove matching the radian measuring instrument are provided on the top of the base, the second mounting groove is arranged on the opposite side of the radian surface of the square inner core, a sliding groove is arranged between the first mounting groove and the second mounting groove for the square inner core to slide toward the radian measuring instrument, a pressing piece is arranged on the top of the base to match the two-legged bracket, and the pressing piece is arranged on the top of the two-legged bracket.
[0008] Preferably, the square inner core comprises a cylindrical shaft body with a hollow interior and a square block fixedly sleeved outside one end of the shaft body, and a curved surface is arranged on a side of the square block closest to the shaft body.
[0009] Preferably, the first installation groove includes a first straight groove matched with the shaft body and a second straight groove matched with the square block, and the first straight groove and the second straight groove are connected.
[0010] Preferably, the first straight groove is communicated with the outside, one end of the shaft body is arranged on the outside, and the length of the shaft body arranged on the outside is greater than the moving stroke of the square inner core.
[0011] Preferably, the pressing piece includes a connecting plate and a pressing block. The connecting plate is fixedly arranged on the top of the base. Two pressing blocks are provided and integrally connected to the bottom of the connecting plate. The two pressing blocks are respectively pressed on both sides of the two-legged bracket.
[0012] Preferably, the connecting plate and the base are fixedly connected by bolts.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model fixes the arc measuring instrument on the base, and arranges an installation groove for installing the square inner core and a slide groove moving toward the arc measuring instrument to fix the measuring position of the square inner core and prevent the deviation existing in the traditional manual measurement. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the square inner core.
[0016] Figure 2 Schematic diagram of the three-dimensional structure of the arc measuring instrument.
[0017] Figure 3 A schematic diagram of the three-dimensional structure of the base.
[0018] Figure 4 Schematic diagram of the three-dimensional structure of the measuring tool.
[0019] Figure 5 for Figure 4 Top view of the .
[0020] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure.
[0021] Markings in the figure: 1-base, 2-arc measuring instrument, 3-square inner core, 4-first mounting slot, 5-second mounting slot, 6-slide slot, 7-pressing piece, 21-two-leg bracket, 22-measuring rod, 23-indicator, 31-axis body, 32-square block, 33-arc surface, 41-first straight slot, 42-second straight slot, 71-connecting plate, 72-pressing block, 73-bolt. DETAILED DESCRIPTION
[0022] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the practical embodiments. Obviously, the described embodiments are only part of the practical embodiments, not all of the practical embodiments. Based on the practical embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of this practical.
[0023] The arc measuring tool of the utility model is used to measure the arc of the arc surface of the square inner core. Figure 1As shown, the square inner core includes a hollow cylindrical shaft body and a square block fixedly sleeved on the left end of the shaft body. The central axis of the shaft body coincides with the central axis of the square block, and an arc surface is set on the side of the square block closest to the shaft body, that is, the left side of the square block.
[0024] The arc measuring tool of the utility model is based on the arc measuring instrument, referring to Figure 2 As shown, the arc measuring instrument includes a two-legged bracket, a measuring rod with an indicator, a through hole is set in the middle of the two-legged bracket, the measuring rod is inserted in the through hole in the middle of the two-legged bracket, and the measuring rod and the two-legged bracket are fixedly arranged, and the two legs of the two-legged bracket and the central axis of the measuring rod are in the same horizontal plane, and the measuring rod is a telescopic rod, and the change of the value in the indicator is triggered by the telescopic measurement rod. The arc measuring instrument in this embodiment uses a digital display radius gauge produced by Dongguan Sanliang Measuring Tools Co., Ltd., with product specifications of R5-R700 and product serial number 22Y7278.
[0025] The arc measuring tool of the utility model is used to measure the arc of the arc surface of the square block in the square inner core. Figure 3-6 The radian measuring tool comprises a base with a rectangular structure, a first mounting groove matching with a square inner core is provided on the right side of the top of the base, and the central axis of the square inner core installed in the first mounting groove is higher than the top surface of the base, or is in the same horizontal plane as the top surface of the base; the first mounting groove comprises a first straight groove matching with the shaft body and a second straight groove matching with the square block, the first straight groove and the second straight groove are connected, and the second straight groove is arranged on the left side of the first straight groove. A second mounting groove matching with a radian measuring instrument is provided on the left side of the top of the base opposite to the arc surface of the square inner core, and a pressing piece is provided on the top of the base in cooperation with a two-legged bracket, and the pressing piece is arranged on the top of the two-legged bracket, and the two legs of the two-legged bracket correspond to the lower half of the arc surface, that is, the arc surface part below the shaft body; by arranging a pressing piece on the top of the two-legged bracket, the radian measuring instrument is fixedly arranged in the second mounting groove. A sliding groove for the square inner core to translate toward the radian measuring instrument is arranged between the first mounting groove and the second mounting groove. When it is necessary to measure the curvature of the curved surface of the square inner core, the square inner core is manually placed in the first installation groove, and then pushed from right to left. Since the legs of the two-legged bracket correspond to the lower half of the curved surface, the shaft on the left side of the curved surface will not touch the curvature measuring instrument. The curved surface of the square inner core first contacts the measuring rod, and the measuring head of the measuring rod retracts under the push of the square inner core. The indicator on the measuring rod displays the curvature value. The square inner core continues to move to the left until it conflicts with the two-legged bracket, and the indicator on the measuring rod displays the final curvature value.
[0026] In this embodiment, the pressing piece includes a connecting plate and a pressing block. The connecting plate is fixedly arranged on the top of the base. Two pressing blocks are provided and integrally connected to the bottom of the connecting plate. The two pressing blocks are respectively pressed on the front and rear sides of the two-legged bracket. The stability of the two-legged bracket installed in the base is achieved by the two pressing blocks. The connecting plate and the base are fixedly connected by bolts. The quick disassembly and assembly of the arc measuring instrument on the base is achieved by bolt fixing.
[0027] Furthermore, the first straight slot is connected to the outside, the right end of the shaft body is arranged outside the first straight slot, and the length of the shaft body arranged outside the first straight slot is greater than the moving stroke of the square inner core. By limiting the length of the shaft body arranged outside the first straight slot, it is convenient for workers to measure the movement of the square inner core.
[0028] The arc measuring tool of the utility model is easy to operate and has less arc deviation than traditional manual measurement.
Claims
1. A tool for measuring the radian of a square inner core arc surface, based on a radian measuring instrument, comprising a two-legged bracket, a measuring rod with an indicator, the measuring rod being inserted in the middle of the two-legged bracket, characterized in that: The curvature measuring tool comprises a base, a first mounting groove cooperating with a square inner core and a second mounting groove cooperating with a curvature measuring instrument are provided on the top of the base, the second mounting groove is arranged on the opposite side of the curved surface of the square inner core, a sliding groove is arranged between the first mounting groove and the second mounting groove for the square inner core to slide toward the curvature measuring instrument, a pressing piece is arranged on the top of the base in cooperation with a two-legged bracket, and the pressing piece is arranged on the top of the two-legged bracket.
2. The radian measurement tool for the square inner core arc surface according to claim 1, characterized in that: The square inner core comprises a cylindrical shaft body with a hollow interior and a square block fixedly sleeved outside one end of the shaft body, and a curved surface is arranged on the side of the square block closest to the shaft body.
3. The radian measurement tool for the square inner core arc surface as claimed in claim 2, characterized in that: The first installation groove includes a first straight groove matched with the shaft body and a second straight groove matched with the square block, and the first straight groove is connected to the second straight groove.
4. The radian measurement tool for the square inner core arc surface as claimed in claim 3, characterized in that: The first straight groove is connected to the outside, one end of the shaft body is arranged on the outside, and the length of the shaft body arranged on the outside is greater than the moving stroke of the square inner core.
5. The radian measurement tool for the square inner core arc surface as claimed in claim 2, characterized in that: The pressing piece comprises a connecting plate and a pressing block. The connecting plate is fixedly arranged on the top of the base. Two pressing blocks are arranged and integrally connected to the bottom of the connecting plate. The two pressing blocks are respectively pressed on the two sides of the two-legged bracket.
6. The tool for measuring the curvature of the square inner core arc surface as claimed in claim 5, characterized in that: The connecting plate and the base are fixedly connected by bolts.