Fixing device of digital display radius gauge and detection equipment

Abstract

The utility model provides a fixing device of a digital display radius gauge and detection equipment, which are used for solving the problem that the digital display radius gauge is easy to displace. The fixing device of the digital display radius gauge comprises a supporting seat, a blocking piece and a positioning piece. The supporting seat is provided with a supporting surface for placing the digital display radius gauge, the blocking piece and the positioning piece are oppositely arranged and are respectively connected with the supporting seat, the blocking piece is provided with an abutting surface and a test channel, the test channel penetrates through the blocking piece along the vertical direction of the abutting surface so that the abutting surface can abut against the measuring claw, and the measuring rod can penetrate through the test channel. The positioning piece is provided with a positioning groove with an opening facing the abutting surface, so that the groove wall of the positioning groove can abut against the dial plate. The testing channel is provided with an axis arranged in the vertical direction of the abutting face, and the groove walls of the positioning groove are symmetrically arranged about the axis in the projection direction of the supporting face, so that a dial plate can be contained between the symmetrically-arranged groove walls and limited. According to the invention, the digital display radius gauge can be fixed in the axial direction and the abutting surface direction.

Description

Technical Field

[0001] The present application relates to the technical field of digital display radius gauge detection, and in particular to a fixing device and detection equipment for a digital display radius gauge. Background Art

[0002] Digital radius gauges are used to measure the radius of circular arcs. After long-term use or maintenance, digital radius gauges need to be recalibrated to determine the error. At present, the commonly used calibration methods include using digital radius gauges to measure standard parts, and also measuring by changing the extension and contraction of the digital radius gauge measuring rod. However, during the calibration process of the digital radius gauge, it is difficult to stably fix the position of the digital radius gauge, which leads to the problem of reduced calibration accuracy due to the displacement of the digital radius gauge. Utility Model Content

[0003] The present application provides a fixing device and a detection device for a digital display radius gauge, aiming to solve the technical problem that the digital display radius gauge is easy to move during the calibration process.

[0004] According to the first aspect of the present application, in one embodiment, a fixing device for a digital display radius gauge is provided, which is used to fix the digital display radius gauge. The fixing device for the digital display radius gauge includes:

[0005] A support seat having a support surface for placing the digital display radius gauge;

[0006] a stopper connected to the support seat, the stopper having an abutting surface and a test channel, the test channel penetrating the stopper in a direction perpendicular to the abutting surface so that the abutting surface can abut against the measuring claw of the digital radius gauge, and the test channel can allow the measuring rod of the digital radius gauge to pass through; and,

[0007] A positioning member connected to the support seat and arranged opposite to the stopper, the positioning member being provided with a positioning groove opening toward the abutment surface so that the groove wall of the positioning groove can abut against the dial of the digital display radius gauge;

[0008] Wherein, the test channel has an axis arranged along the vertical direction of the abutment surface, and the groove walls of the positioning groove are symmetrically arranged about the axis in the projection direction of the supporting surface, so that the dial of the digital radius gauge can be accommodated between the symmetrically arranged groove walls and form a limit for the dial.

[0009] In one embodiment, the groove wall of the positioning groove includes a first groove wall and a second groove wall symmetrically arranged about the axis;

[0010] The first groove wall has a first end close to the side of the stopper and a second end away from the side of the stopper, and the first end of the first groove wall is farther away from the axis than the second end of the first groove wall; the second groove wall has a third end close to the side of the stopper and a fourth end away from the side of the stopper, and the third end of the second groove wall is farther away from the axis than the fourth end of the second groove wall.

[0011] In one embodiment, the first groove wall and the second groove wall are combined to form a V-shaped, U-shaped or arc-shaped positioning groove in the projection direction of the support surface.

[0012] In one embodiment, the positioning member is further provided with a receiving groove for receiving the gripping rod of the digital radius gauge, and the receiving groove is arranged along the axis and communicated with the positioning groove.

[0013] In one embodiment, the fixing device of the digital radius gauge further includes a connecting piece;

[0014] The positioning member has a first connecting portion, and the support seat has a second connecting portion. At least one of the first connecting portion and the second connecting portion is arranged in plurality along the axial direction. The first connecting portion can be connected to the second connecting portion through the connecting member, so that the positioning member can be detachably connected to different positions of the support seat along the axial direction.

[0015] In one embodiment, the fixing device of the digital radius gauge further includes a locking member;

[0016] The positioning member has a first guide portion arranged along the axis, and the support seat has a second guide portion arranged along the axis. The first guide portion is slidably connected to the second guide portion and can be locked by the locking member, so that the positioning member can slide relative to the support seat along the axis direction and be locked at different positions of the support seat.

[0017] In one embodiment, the fixing device of the digital radius gauge further includes a clamping assembly;

[0018] One of the support seat, the stopper and the positioning member is connected to the clamping assembly, and the clamping assembly can move in a direction close to the support surface to clamp the digital radius gauge, or the clamping assembly can move in a direction away from the support surface to release the digital radius gauge.

[0019] In one embodiment, the clamping assembly includes a connecting arm, a knob, and a clamping arm;

[0020] The connecting arm is connected to the supporting seat, the clamping arm passes through the connecting arm and is threadedly connected to the connecting arm, one end of the clamping arm is connected to the knob, and the other end of the clamping arm is suspended at the position where the digital radius gauge is placed on the supporting surface, for clamping the digital radius gauge.

[0021] According to the second aspect of the present application, an embodiment provides a detection device for a digital display radius gauge, comprising:

[0022] A fixing device for the digital display radius gauge described in any of the above embodiments;

[0023] a first carrier, the fixing device of the digital display radius gauge is connected to the first carrier; and,

[0024] The second carrier is used to connect the detection tool, and the first carrier and the second carrier can move relatively along the same straight line.

[0025] In one embodiment, the detection device of the digital display radius gauge further includes a distance measuring device and a guide rail arranged along the axis;

[0026] The first platform and the second platform are slidably connected to the guide rail, and the distance measuring device is used to measure the distance moved between the first platform and the second platform.

[0027] According to the fixing device of the digital radius gauge in the above embodiment, the digital radius gauge can be placed on the support surface of the support seat, and by arranging a stopper on the support seat, the measuring claw of the digital radius gauge can abut on the abutment surface of the stopper. By arranging a positioning member on the support seat, and the opening of the positioning groove faces the abutment surface, the dial of the digital radius gauge can abut on the groove wall of the positioning groove, so that the digital radius gauge can be fixed along the axial direction. Since the groove wall of the positioning groove is symmetrically arranged about the axis in the projection direction of the support surface, the dial of the digital radius gauge can be limited by the groove wall of the symmetrically arranged positioning groove, so that the digital radius gauge can be fixed along the direction of the abutment surface. During calibration, the measuring rod can contact the detection tool through the test channel to change the telescopic amount of the measuring rod. At the same time, the stopper and the positioning member can fix the digital radius gauge in the axial direction and the abutment surface direction respectively, thereby effectively avoiding the problem of the digital radius gauge running during the calibration process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a digital display radius gauge in the related art;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of a detection device for a digital display radius gauge in one embodiment of the present application;

[0030] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of the fixing device of the digital display radius gauge;

[0031] Figure 4 for Figure 3 A schematic top view of the structure of an embodiment of a fixing device for a digital display radius gauge;

[0032] Figure 5 A schematic diagram of an embodiment of a positioning member in a fixing device of a digital display radius gauge of the present application;

[0033] Figure 6 It is a schematic diagram of another embodiment of a positioning member in the fixing device of the digital display radius gauge of the present application;

[0034] Figure 7 It is a schematic diagram of another embodiment of a positioning member in a fixing device of a digital display radius gauge of the present application;

[0035] Figure 8 for Figure 3 A schematic top view of another embodiment of a fixing device for a digital display radius gauge.

[0036] in:

[0037] 1-digital radius gauge; a-dial; b-measuring rod; c-measuring claw; c1-measuring frame; c2-measuring claw; d-grip; 2-digital radius gauge detection equipment; 10-digital radius gauge fixing device; 11-support seat; 110-support surface; 12-stopper; 121-abutment surface; 122-test channel; 123-axis; 13-positioning member; 130-positioning groove; 131-groove wall; 1311-first A groove wall; 1312-a second groove wall; 132-a receiving groove; 133-a connecting piece; 1331-a first connecting part; 1332-a second connecting part; 134-a locking piece; 1341-a first guiding part; 1342-a second guiding part; 14-a clamping assembly; 141-a connecting arm; 142-a knob; 143-a clamping arm; 20-a first platform; 30-a second platform; 40-a detection tool; 50-a guide rail. Specific embodiments

[0038] The present application is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can effortlessly recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, and this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0039] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various embodiments, and the operation steps involved in each embodiment can also be replaced or adjusted in order in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for the purpose of clearly describing a certain embodiment, and do not mean that the composition and / or order are necessary.

[0040] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0041] In related technologies, such as Figure 1 As shown, the digital display radius gauge 1 may include a dial a, a measuring rod b and a measuring claw c, wherein the measuring claw c may include a measuring frame c1 and a measuring claw c2, and the measuring rod b and the measuring claw c are both mounted on the dial a. Among them, one end of the measuring rod b has a probe for measuring the radius of the workpiece, and the probe is replaceable, and the other end of the measuring rod b can be extended and retracted relative to the dial a. The measuring claw c can be fixed relative to the dial a, and the measuring claw c can be replaced according to different measurement requirements. During the measurement process, when the measuring claw c contacts the arc surface of the workpiece to be measured, the probe of the measuring rod b can also contact the arc surface of the workpiece to be measured, and the measuring rod b is squeezed and retracted toward the dial a. Therefore, the radius of the arc surface of the workpiece to be measured can be determined according to the extension and retraction amount of the measuring rod b.

[0042] When the digital radius gauge 1 is used for a long time or the probe and measuring claw c are replaced, the digital radius gauge 1 needs to be recalibrated to determine the error. For example, the error can be determined by measuring the standard part using the digital radius gauge 1. Alternatively, the measuring rod b can be pushed with a pin to change the extension and contraction of the measuring rod b, and the error can be determined by recording the extension and contraction of the measuring rod b and the reading of the digital radius gauge 1. However, in the process of calibrating the digital radius gauge 1, the digital radius gauge 1 is prone to displacement due to its unfixed position, resulting in a problem of reduced calibration accuracy.

[0043] To this end, the present application provides a digital display radius gauge detection device 2, such as Figure 2 As shown, the digital radius gauge detection device 2 may include a digital radius gauge fixing device 10, a first carrier 20 and a second carrier 30. The second carrier 30 may be used to connect the detection tool 40, and the first carrier 20 and the second carrier 30 may move relative to each other along the same straight line.

[0044] During calibration, the digital radius gauge fixture 10 can be used to install the digital radius gauge 1, and the digital radius gauge 1 can be fixed in the digital radius gauge fixture 10. When the first carrier 20 and the second carrier 30 move relatively along the same straight line, the digital radius gauge 1 can move relatively along the same straight line with the detection tool 40, so that the digital radius gauge 1 can be calibrated by the detection tool 40. According to different calibration methods, the detection tool 40 can use standard parts or ejector pins, and the present application does not impose any special restrictions on the specific structure of the detection tool 40.

[0045] For example, Figure 2 As shown, when the detection tool 40 is selected as a pin, the detection equipment 2 of the digital radius gauge can also include a distance measuring device (not shown in the figure) and a guide rail 50 arranged along the axis 123, the first platform 20 and the second platform 30 can be slidably connected to the guide rail 50, and the distance measuring device can be used to measure the distance moved between the first platform 20 and the second platform 30.

[0046] Thus, the digital radius gauge 1 and the ejector pin can move relative to each other along the linear direction of the guide rail 50, and the ejector pin can push the measuring rod b on the digital radius gauge 1 to change the extension and contraction amount of the measuring rod b. In this way, the digital radius gauge 1 can be calibrated according to the following formula:

[0047] R=f(r,L,H)=

(L 2 +4H 2 ) / 8H

[0048] Wherein, R is the radius of the arc surface of the workpiece being measured;

[0049] L is the distance between the ends of the legs of the two measuring claws c2;

[0050] H is the distance between the probe of the measuring rod b and the end of the foot of the measuring claw c2;

[0051] r is the radius of the small ball at the end of the foot of the measuring claw c2.

[0052] Record the moving distance of the second carrier and the reading of the radius gauge in real time, and calculate the error based on the reading

[0053] During calibration, the relative movement distance (i.e. H) between the first carrier 20 and the second carrier 30 and the reading of the dial a (i.e. R) can be recorded in real time. Since L and r are both fixed values, the error of the digital radius gauge 1 can be determined by analyzing a large amount of data between H and R. Among them, the distance measuring device can adopt equipment such as a grating ruler, a laser rangefinder, an infrared rangefinder, etc. The distance measuring device can be installed on the first carrier 20 or on the second carrier 30. The present application does not impose any special restrictions on the specific structure and installation position of the distance measuring device. In other embodiments, the detection device 2 of the digital radius gauge can also drive the relative movement of the first carrier 20 and the second carrier 30 by the cooperation of a servo motor and a lead screw nut pair, so as to replace the scheme of cooperation between the distance measuring device and the guide rail 50. The present application does not impose any special restrictions on the driving structure of the detection device 2 of the digital radius gauge.

[0054] Of course, according to the different calibration accuracy requirements of the digital radius gauge 1, the detection device 2 of the digital radius gauge can also be used for calibration by selecting standard parts. For example, the standard part can be connected to the second carrier 30, and the first carrier 20 and the second carrier 30 are moved relative to each other until the measuring rod b and the measuring claw c are respectively in contact with the standard part, and the measurement value can be read through the dial a, and then the error of the digital radius gauge 1 can be analyzed after measuring multiple groups of standard parts. The present application does not impose any special restrictions on the calibration method of the detection device 2 of the digital radius gauge. Compared with the method of selecting standard parts for calibration, more data can be measured by pushing the measuring rod b with a pin, which is more conducive to improving the accuracy of calibration.

[0055] The above embodiment is a detailed introduction to the specific structure of the digital display radius gauge detection device 2. In order to better fix the digital display radius gauge 1, the present application also provides a digital display radius gauge fixing device 10, such as Figure 3As shown, the fixing device 10 of the digital radius gauge may include a support seat 11, a stopper 12 and a positioning member 13. The support seat 11 has a support surface 110 for placing the digital radius gauge 1, the stopper 12 is connected to the support seat 11, and the stopper 12 has an abutment surface 121 and a test channel 122, the test channel 122 penetrates the stopper 12 along the vertical direction of the abutment surface 121, so that the abutment surface 121 can abut against the measuring claw c of the digital radius gauge 1, and the test channel 122 can allow the measuring rod b of the digital radius gauge 1 to pass through. The positioning member 13 is connected to the support seat 11 and arranged opposite to the stopper 12, and the positioning member 13 is provided with a positioning groove 130 with an opening facing the abutment surface 121, so that the groove wall 131 of the positioning groove 130 can abut against the dial a of the digital radius gauge 1. Among them, the test channel 122 has an axis 123 set in the vertical direction of the abutment surface 121, and the groove wall 131 of the positioning groove 130 is symmetrically arranged about the axis 123 in the projection direction of the support surface 110, so that the dial a of the digital display radius gauge 1 can be accommodated between the symmetrically arranged groove walls 131 and form a limit for the dial a.

[0056] Thus, the digital radius gauge 1 can be placed on the support surface 110 of the support seat 11, and by arranging the stopper 12 on the support seat 11, the measuring claw c of the digital radius gauge 1 can abut against the abutting surface 121 of the stopper 12. By arranging the positioning member 13 on the support seat 11, and the opening of the positioning groove 130 faces the abutting surface 121, the dial a of the digital radius gauge 1 can abut against the groove wall 131 of the positioning groove 130, so that the digital radius gauge 1 can be fixed along the direction of the axis 123. Since the groove wall 131 of the positioning groove 130 is symmetrically arranged about the axis 123 in the projection direction of the support surface 110, the dial a of the digital radius gauge 1 can be limited by the groove wall 131 of the symmetrically arranged positioning groove 130, so that the digital radius gauge 1 can be fixed along the direction of the abutting surface 121. During calibration, the measuring rod b can contact the detection tool 40 through the test channel 122 to change the telescopic amount of the measuring rod b. At the same time, the stopper 12 and the positioning member 13 can fix the digital radius gauge 1 in the direction of the axis 123 and the direction of the abutment surface 121 respectively, thereby effectively avoiding the problem of displacement of the digital radius gauge 1 during the calibration process.

[0057] Of course, when selecting a standard part to determine the error of the digital radius gauge 1, a measuring claw channel can also be opened on the stopper 12, and the measuring claw channel can be used to pass the measuring claw c2 of the measuring claw c, so that the measuring rod b and the measuring claw c2 can contact the standard part respectively, so as to measure the standard part to determine the error of the digital radius gauge 1. At this time, the stopper 12 can abut against the measuring frame c1 of the measuring claw c. The present application does not impose any special restrictions on the specific structure of the stopper 12.

[0058] Among them, the support seat 11, the stopper 12 and the positioning member 13 can be set as a plate structure or a block structure, and the test channel 122 can be set as a hole structure or a slit structure. The present application does not impose any special restrictions on the specific structures of the support seat 11, the stopper 12, the positioning member 13 and the test channel 122. For example, the support seat 11 can be a plate structure and has a length direction, a width direction and a height direction. For the convenience of explanation in the following embodiments, the X direction is used as the length direction of the support seat 11, the Y direction is used as the width direction of the support seat 11, and the Z direction is used as the height direction of the support seat 11. At this time, the axis 123 can be set along the X direction, the support surface 110 can be set along the XY plane, and the abutment surface 121 can be set along the YZ plane.

[0059] In addition, the present application will adopt the following method for hollow parts such as holes and slots: Figure 3 The test channel 122 and the positioning groove 130 are marked with arrows, and the other components are marked with arrows. The same marking method will be used in the drawings of the following embodiments, and will not be repeated.

[0060] Specifically, if Figure 4 As shown, the groove wall 131 of the positioning groove 130 may include a first groove wall 1311 and a second groove wall 1312 symmetrically arranged about the axis 123, the first groove wall 1311 may have a first end close to the side of the stopper 12 and a second end away from the side of the stopper 12, and the first end of the first groove wall 1311 is farther away from the axis 123 than the second end of the first groove wall 1311; the second groove wall 1312 may have a third end close to the side of the stopper 12 and a fourth end away from the side of the stopper 12, and the third end of the second groove wall 1312 is farther away from the axis 123 than the fourth end of the second groove wall 1312.

[0061] In this way, in the XY plane, since the first end of the first groove wall 1311 and the third end of the second groove wall 1312 are far away from the axis 123, the second end of the first groove wall 1311 and the fourth end of the second groove wall 1312 are close to the axis 123, the first groove wall 1311 and the second groove wall 1312 can form an expansion shape with the opening facing the abutment surface 121 in the XY plane, so that the dial a of different sizes can be fixed in the positioning groove 130 by the symmetrically arranged first groove wall 1311 and the second groove wall 1312.

[0062] Of course, in other embodiments, the first groove wall 1311 and the second groove wall 1312 may also be configured to be parallel to the axis 123, or the first groove wall 1311 and the second groove wall 1312 may also be configured to be adapted to the outer contour of the dial a, so that the dial a of the same size can be fixed in position in the positioning groove 130. The present application does not impose any special restrictions on the specific shapes of the first groove wall 1311 and the second groove wall 1312.

[0063] In some specific embodiments, Figures 4 to 7 As shown, the first groove wall 1311 and the second groove wall 1312 can be combined to form a V-shaped, U-shaped or arc-shaped positioning groove 130 in the projection direction of the support surface 110 (ie, the XY plane).

[0064] For example, when the projections of the first groove wall 1311 and the second groove wall 1312 in the XY plane are both straight lines and inclined relative to the axis 123, the first groove wall 1311 and the second groove wall 1312 can be combined to form Figure 4 When the projections of the first groove wall 1311 and the second groove wall 1312 in the XY plane are both arc-shaped protruding outwards, the first groove wall 1311 and the second groove wall 1312 can be combined to form Figure 5 When the projections of the first groove wall 1311 and the second groove wall 1312 in the XY plane are both inwardly concave arcs, the first groove wall 1311 and the second groove wall 1312 can be combined to form Figure 6 In addition, the projections of the first groove wall 1311 and the second groove wall 1312 in the XY plane can also be set in the shape of multiple broken lines, so that the first groove wall 1311 and the second groove wall 1312 can be combined to form Figure 7 The folded line positioning groove 130 shown. Any of the above positioning grooves 130 can be used to limit and fix dials a of various sizes at the same time.

[0065] In addition, if Figure 1 and Figure 4 As shown, the digital radius gauge 1 may further include a gripping rod d, and the positioning member 13 may further include an accommodating groove 132 for accommodating the gripping rod d. The accommodating groove 132 may be arranged along the axis 123 and communicate with the positioning groove 130 .

[0066] By providing a receiving groove 132 for accommodating the grip d on the positioning member 13, the grip d can be placed in the receiving groove 132. At the same time, when the digital radius gauge 1 is placed on the support surface 110, the receiving groove 132 can also play a role in positioning the digital radius gauge 1. Of course, when the digital radius gauge 1 is not provided with the grip d, the positioning member 13 can also cancel the provision of the receiving groove 132, which does not affect the limiting and fixing effect of the positioning member 13 on the digital radius gauge 1.

[0067] In some embodiments, Figure 4As shown, the fixing device 10 of the digital radius gauge may further include a connecting member 133, the positioning member 13 may have a first connecting portion 1331, the support seat 11 may have a second connecting portion 1332, at least one of the first connecting portion 1331 and the second connecting portion 1332 may be provided in plurality along the axis 123, and the first connecting portion 1331 may be connected to the second connecting portion 1332 via the connecting member 133, so that the positioning member 13 may be detachably connected to different positions of the support seat 11 along the axis 123.

[0068] For example, the first connection part 1331 may be a connection hole provided on the positioning member 13, the second connection part 1332 may be a connected hole provided on the support seat 11 (shown by a dotted line in the figure), the connection member 133 may be a bolt or a pin, and a plurality of connected holes may be provided on the support seat 11 along the axis 123. When the digital display radius gauge 1 of different sizes is mounted on the support seat 11, the connection hole and the connected hole may be aligned and the positioning member 13 may be fixed to the support seat 11 through the connection member 133, thereby adjusting the position of the positioning member 13 along the axis 123 to fix the digital display radius gauge 1 of different sizes on the support seat 11, thereby improving the application range of the fixing device 10 of the digital display radius gauge.

[0069] Of course, the positioning member 13 may also be provided with a plurality of connection holes, and the support seat 11 may also be provided with one or more connected holes. The present application does not impose any special restrictions on the specific number of connection holes and connected holes. In addition, the first connection portion 1331 and the second connection portion 1332 may also be provided as a structure in which a lock catch and a lock head cooperate. The present application does not impose any special restrictions on the specific structure of the first connection portion 1331, the second connection portion 1332 and the connection member 133.

[0070] In other embodiments, Figure 8 As shown, the fixing device 10 of the digital radius gauge may further include a locking member 134, the positioning member 13 may have a first guide portion 1341 arranged along the axis 123, the support seat 11 may have a second guide portion 1342 arranged along the axis 123, the first guide portion 1341 is slidably connected to the second guide portion 1342 and can be locked by the locking member 134, so that the positioning member 13 can slide relative to the support seat 11 along the direction of the axis 123 and be locked at different positions of the support seat 11.

[0071] For example, the first guide portion 1341 may be a linear rail disposed on the positioning member 13 along the axis 123, the second guide portion 1342 may be a guide groove disposed on the support seat 11 along the axis 123, the locking member 134 may be a bolt or a pin, and the linear rail and the guide groove are slidably connected. When digital display radius gauges 1 of different sizes are installed on the support seat 11, the position of the positioning member 13 along the axis 123 can be adjusted by sliding the linear rail and the guide groove, and the positioning member 13 can be fixed to the support seat 11 by the locking member 134, and digital display radius gauges 1 of different sizes can also be fixed to the support seat 11.

[0072] Of course, the positioning member 13 can also be provided with a guide groove, and the support seat 11 can also be provided with a linear track. The present application does not impose any special restrictions on the specific positions of the linear track and the guide groove. In addition, the first guide portion 1341 and the second guide portion 1342 can also be provided with a structure in which a lead screw and a nut cooperate. The present application does not impose any special restrictions on the specific structures of the first guide portion 1341, the second guide portion 1342 and the locking member 134.

[0073] In more embodiments, the positioning member 13 can be adjusted relative to the support seat 11 so that when the dial a of the digital radius gauge 1 can abut against the groove wall 131 of the positioning groove 130, the stopper 12 can just abut against the measuring frame c1 or the measuring claw c2 of the measuring claw c. For example, the digital radius gauge 1 can be placed on the support seat 11 first, so that the dial a can abut against the groove wall 131 of the positioning groove 130, and the positioning member 13 can be pushed until the stopper 12 abuts against the measuring frame c1 or the measuring claw c2 of the measuring claw c, and then the positioning member 13 is fixed to the support seat 11 using structures such as the connecting member 133 or the locking member 134. The present application does not impose any special restrictions on the installation method of the digital radius gauge 1.

[0074] The above embodiment is a detailed description of the specific structure of the support seat 11, the stopper 12 and the positioning member 13. In order to better fix the digital display radius gauge 1, as shown in FIG. Figure 3 As shown, the fixing device 10 of the digital radius gauge may further include a clamping assembly 14, and one of the support seat 11, the stopper 12 and the positioning member 13 may be connected to the clamping assembly 14, and the clamping assembly 14 may be moved in a direction close to the support surface 110 to clamp the digital radius gauge 1, or the clamping assembly 14 may be moved in a direction away from the support surface 110 to loosen the digital radius gauge 1.

[0075] When the digital radius gauge 1 is installed on the support surface 110 of the support seat 11, the movement of the clamping assembly 14 towards or away from the support surface 110 can be controlled to clamp the digital radius gauge 1 between the support seat 11 and the clamping assembly 14 along the Z direction, so that the digital radius gauge 1 can be fixed in the three directions of XYZ of the support seat 11 to ensure the stability of the digital radius gauge 1.

[0076] Specifically, if Figure 3 As shown, the clamping assembly 14 may include a connecting arm 141, a knob 142 and a clamping arm 143. The connecting arm 141 may be connected to the support seat 11, the clamping arm 143 may pass through the connecting arm 141 and be threadedly connected to the connecting arm 141, one end of the clamping arm 143 may be connected to the knob 142, and the other end of the clamping arm 143 may be suspended at a position on the support surface 110 where the digital radius gauge 1 is placed, for clamping the digital radius gauge 1.

[0077] When it is necessary to fix the digital radius gauge 1, the clamping arm 143 can be controlled by turning the knob 142 to clamp the digital radius gauge 1 on the support seat 11. When it is necessary to loosen the digital radius gauge 1, the clamping arm 143 can be controlled by turning the knob 142 to loosen the digital radius gauge 1. Of course, in other embodiments, the clamping assembly 14 can also be set to a spring-type structure, so that the digital radius gauge 1 can be fixed on the support seat 11 along the Z direction under the elastic force of the spring. In addition, the clamping assembly 14 can be connected not only to the support seat 11, but also to the stopper 12 or the positioning member 13. The present application does not impose any special restrictions on the specific structure and position of the clamping assembly 14.

[0078] The above specific examples are used to illustrate the present invention, which are only used to help understand the present invention and are not intended to limit the present invention. For those skilled in the art of the present invention, some simple deductions, deformations or substitutions can be made based on the idea of ​​the present invention.

Claims

1. A fixing device for a digital radius gauge, characterized in that: Used to fix a digital display radius gauge, the fixing device of the digital display radius gauge comprises: A support seat having a support surface for placing the digital display radius gauge; a stopper connected to the support seat, the stopper having an abutting surface and a test channel, the test channel penetrating the stopper in a direction perpendicular to the abutting surface so that the abutting surface can abut against the measuring claw of the digital radius gauge, and the test channel can allow the measuring rod of the digital radius gauge to pass through; and, A positioning member connected to the support seat and arranged opposite to the stopper, the positioning member being provided with a positioning groove opening toward the abutment surface so that the groove wall of the positioning groove can abut against the dial of the digital display radius gauge; Wherein, the test channel has an axis arranged along the vertical direction of the abutment surface, and the groove walls of the positioning groove are symmetrically arranged about the axis in the projection direction of the supporting surface, so that the dial of the digital radius gauge can be accommodated between the symmetrically arranged groove walls and form a limit for the dial.

2. The fixing device for a digital radius gauge according to claim 1, characterized in that: The groove wall of the positioning groove includes a first groove wall and a second groove wall symmetrically arranged about the axis; The first groove wall has a first end close to the side of the stopper and a second end away from the side of the stopper, and the first end of the first groove wall is farther away from the axis than the second end of the first groove wall; the second groove wall has a third end close to the side of the stopper and a fourth end away from the side of the stopper, and the third end of the second groove wall is farther away from the axis than the fourth end of the second groove wall.

3. The fixing device for a digital radius gauge according to claim 2, characterized in that: The first groove wall and the second groove wall are combined to form a V-shaped, U-shaped or arc-shaped positioning groove in the projection direction of the support surface.

4. The fixing device for a digital radius gauge according to claim 1, characterized in that: The positioning member is also provided with a receiving groove for receiving the gripping rod of the digital radius gauge, and the receiving groove is arranged along the axis and communicated with the positioning groove.

5. The fixing device for a digital radius gauge according to claim 1, characterized in that: The fixing device of the digital display radius gauge also includes a connecting piece; The positioning member has a first connecting portion, and the support seat has a second connecting portion. At least one of the first connecting portion and the second connecting portion is arranged in plurality along the axial direction. The first connecting portion can be connected to the second connecting portion through the connecting member, so that the positioning member can be detachably connected to different positions of the support seat along the axial direction.

6. The fixing device for a digital radius gauge according to claim 1, characterized in that: The fixing device of the digital radius gauge also includes a locking piece; The positioning member has a first guide portion arranged along the axis, and the support seat has a second guide portion arranged along the axis. The first guide portion is slidably connected to the second guide portion and can be locked by the locking member, so that the positioning member can slide relative to the support seat along the axis direction and be locked at different positions of the support seat.

7. The fixing device for a digital radius gauge according to any one of claims 1 to 6, characterized in that: The fixing device of the digital radius gauge also includes a clamping assembly; One of the support seat, the stopper and the positioning member is connected to the clamping assembly, and the clamping assembly can move in a direction close to the support surface to clamp the digital radius gauge, or the clamping assembly can move in a direction away from the support surface to release the digital radius gauge.

8. The fixing device for a digital radius gauge according to claim 7, characterized in that: The clamping assembly comprises a connecting arm, a knob and a clamping arm; The connecting arm is connected to the supporting seat, the clamping arm passes through the connecting arm and is threadedly connected to the connecting arm, one end of the clamping arm is connected to the knob, and the other end of the clamping arm is suspended at the position where the digital radius gauge is placed on the supporting surface, for clamping the digital radius gauge.

9. A digital display radius gauge detection device, characterized in that: include: The fixing device for a digital radius gauge according to any one of claims 1 to 8; A first carrier, the fixing device of the digital display radius gauge is connected to the first carrier; as well as, The second carrier is used to connect the detection tool, and the first carrier and the second carrier can move relatively along the same straight line.

10. The digital display radius gauge detection device according to claim 9, characterized in that: The detection device of the digital display radius gauge also includes a distance measuring device and a guide rail arranged along the axis; The first platform and the second platform are slidably connected to the guide rail, and the distance measuring device is used to measure the distance moved between the first platform and the second platform.

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