Long-axis deep hole measuring device

Abstract

The utility model discloses a long shaft deep hole measuring device, comprising a Z-direction connecting seat; the measuring seat is connected with a rotary measuring head; the Z-direction connecting seat and the measuring seat are electrically connected and are provided with a clamping assembly and a positioning assembly, the clamping assembly is used for realizing detachable clamping connection of the Z-direction connecting seat and the measuring seat, and the positioning assembly is used for positioning the Z-direction connecting seat; the orientations of the two measuring rods are opposite; the end part of the measuring rod is provided with a measuring piece. The measuring seat and the Z-direction connecting seat are not electrically connected through direct plugging of a cable, when the measuring seat is electrically connected or disconnected, the cable does not need to be plugged, and installation and electric connection of the measuring seat can be conveniently and rapidly achieved at the same time. The measuring device measures the external characteristics of the deep-hole part through the rotary measuring head, measures the internal characteristics of the deep-hole part through the measuring rod, can solve the problem of measurement of the internal and external characteristics of a complex long-axis deep hole through one-time programming, and is high in measurement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of long-axis deep hole measurement technology, and more specifically to a long-axis deep hole measurement device. Background Technology

[0002] The development of long-axis deep hole inspection technology stems from the industrial sector's demand for quality control of high-precision, deep, and complex deep holes (depth > 1000 mm, depth-to-diameter ratio > 20), and it is widely used in aerospace, energy equipment and other fields.

[0003] Current long-axis deep hole measuring devices are used to detect long-axis deep holes by connecting to a coordinate measuring machine (CMM). The device includes a measuring base, which is connected to the CMM via a Z-axis connecting plate. The Z-axis connecting plate connects to the CMM's Z-axis scanning cable and trigger cable, and the measuring base and Z-axis connecting plate are connected by a cable. Installing and / or removing the measuring base requires plugging and / or unplugging the cable and adjusting the connecting posture of the measuring base. These processes are cumbersome and require a high level of technical skill from the measurement personnel.

[0004] Furthermore, for bidirectional measurement of long-axis deep holes, the limited measurement space and the long measuring rod mean that the rotating carriage cannot change the angle. During rotation, the measuring rod will collide with the machine body. Fixed-angle operation requires frequent replacement of the probe and measuring seat, which reduces both measurement accuracy and efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a long-axis deep hole measuring device that can conveniently and quickly install and electrically connect the measuring base, and has high measurement accuracy and efficiency.

[0006] Therefore, this utility model provides a long-axis deep hole measuring device, comprising: a Z-axis connecting seat; a measuring seat connected to a rotating probe; the Z-axis connecting seat and the measuring seat are electrically connected and provided with a locking assembly and a positioning assembly, the locking assembly being used to realize a detachable locking connection between the Z-axis connecting seat and the measuring seat, and the positioning assembly being used to position the Z-axis connecting seat; two measuring rods, the two measuring rods being fixed on the outer wall of the measuring seat and the two measuring rods being oriented in opposite directions; and measuring elements being provided at the ends of the measuring rods.

[0007] Preferably, the engaging assembly includes an engaging platform disposed on the measuring seat and two engaging slots disposed on the Z-direction connecting seat, wherein the two sides of the engaging platform are respectively engaged in the two engaging slots.

[0008] Preferably, one of the engagement grooves has a recessed connecting groove on its inner wall and a connecting hole on its outer wall that communicates with the connecting groove; a fastener is connected in the connecting hole, and the fastener is used to fasten the engagement platform.

[0009] Preferably, the two sides of the locking platform are respectively provided with inclined first locking surfaces, and the inner wall of the locking groove is provided with a second locking surface that is adapted to the first locking surfaces.

[0010] Preferably, the head of the locking platform is provided with an inclined guide surface, which is used to allow the locking platform to enter the locking groove.

[0011] Preferably, the engaging platform is provided with a recessed first clearance groove, which is used to avoid the edge of the engaging groove; the engaging groove is provided with a recessed second clearance groove, which is used to avoid the edge of the engaging platform.

[0012] Preferably, the positioning component includes a positioning groove disposed on the head of the engagement platform and a positioning post disposed on the Z-direction connecting seat; when the engagement platform is engaged in the engagement groove, the positioning post is engaged in the positioning groove.

[0013] Preferably, the locking platform is provided with a circuit board, and the Z-axis connector is provided with a flexible serial port; when the locking platform is engaged in the locking groove, the circuit board and the flexible serial port are connected accordingly.

[0014] Preferably, the measuring element includes a trigger probe, which is connected to a star-shaped probe.

[0015] Preferably, the measuring rod has a hollow structure.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are:

[0017] The measuring device of this invention can achieve high-precision and high-efficiency measurement of the parts to be measured. The measuring device has strong applicability and can meet the measurement needs of different parts to be measured.

[0018] The measuring base and the Z-axis connecting base are equipped with a locking component and a positioning component. The locking component and the positioning component can be manually operated to ensure that the measuring base is securely and effectively installed on the Z-axis connecting base, and to facilitate quick and convenient installation and removal of the measuring base.

[0019] The measuring base and the Z-direction connecting base of this invention are not electrically connected via direct cable insertion. When connecting or disconnecting the measuring base, no cable insertion or removal is required. This invention allows for convenient and quick simultaneous installation and electrical connection of the measuring base. When connecting the measuring base, simply engage the locking platform between the two locking slots to simultaneously install and connect the measuring base. When disassembling the measuring base, there is no need to disconnect the cables from the measuring base and the Z-direction connecting base; simply slide the locking platform away from the two locking slots to simultaneously disassemble the measuring base.

[0020] The measuring base is connected to a rotary probe and two measuring rods for measurement. The rotary probe is detachable, meaning that different rotary probes can be easily replaced on the measuring base to make it suitable for different measurement tasks. Secondly, the lengths of the two measuring rods can be customized according to the parts to be measured, thus meeting the measurement needs of different parts.

[0021] The measuring device measures the external features of deep-hole parts by rotating the probe and the internal features by measuring the measuring rod. It can solve the measurement problem of the internal and external features of complex long-shaft deep holes with a single programming, resulting in high measurement efficiency.

[0022] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0023] Figure 1 This is one of the structural schematic diagrams of an embodiment of the long-axis deep hole measuring device of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of one embodiment of the measuring rod of this utility model;

[0025] Figure 3 This is a second schematic diagram of an embodiment of the long-axis deep hole measuring device of this utility model;

[0026] Figure 4 This is one of the partial structural schematic diagrams of an embodiment of the measuring seat of this utility model;

[0027] Figure 5 This is a second partial structural schematic diagram of one embodiment of the measuring seat of this utility model;

[0028] Figure 6 This is one of the structural schematic diagrams of an embodiment of the Z-axis connector of this utility model;

[0029] Figure 7 This is one of the partial structural schematic diagrams of an embodiment of the Z-direction connector of this utility model;

[0030] Figure 8 This is a second partial structural schematic diagram of one embodiment of the Z-direction connector of this utility model;

[0031] Figure 9 This is the third schematic diagram of an embodiment of the long-axis deep hole measuring device of this utility model.

[0032] Measuring base 10, locking platform 11, first locking surface 12, guide surface 13, first clearance groove 14, positioning groove 15, first circuit board 16, rotating probe 17.

[0033] Z-direction connector 20, engaging groove 21, second engaging surface 22, connecting groove 23, connecting hole 24, second clearance groove 25, positioning post 26, second circuit board 27, spring probe 28;

[0034] Measuring rod 30, trigger probe 31, probe 32. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figures 1-9 As shown, this application provides a long-axis deep hole measuring device, including a measuring seat 10, a Z-axis connecting seat 20, and a measuring rod 30.

[0037] The Z-axis connecting seat 20 is mounted on the coordinate measuring machine. By installing the measuring seat 10 on the Z-axis connecting seat 20, the long-axis deep hole measuring device of this utility model can be installed on the coordinate measuring machine.

[0038] A locking component and a positioning component are provided between the measuring base 10 and the Z-direction connecting base 20. The locking component is used to realize the detachable locking connection between the measuring base 10 and the Z-direction connecting base 20, and the positioning component is used to position the Z-direction connecting base 20.

[0039] This invention, through the engagement and positioning components, enables the measuring seat 10 to be securely and effectively mounted on the Z-direction connecting seat 20, and facilitates the quick installation and removal of the measuring seat 10.

[0040] In some embodiments of this utility model, the engagement assembly includes an engagement platform 11 disposed on the measuring seat 10 and two engagement slots 21 disposed on the Z-direction connecting seat 20. The two sides of the engagement platform 11 are respectively engaged in the two engagement slots 21, thereby realizing a detachable engagement connection between the measuring seat 10 and the Z-direction connecting seat 20.

[0041] In other embodiments of this utility model, the engaging assembly includes an engaging platform disposed on the Z-direction connecting seat and two engaging slots disposed on the measuring seat 10. The two sides of the engaging platform are respectively engaged in the two engaging slots, which can also realize the detachable engaging connection between the measuring seat 10 and the Z-direction connecting seat 20.

[0042] In some embodiments of this utility model, the locking platform 11 is generally dovetail shaped. Specifically, the two sides of the locking platform 11 are respectively provided with inclined first locking surfaces 12, and the angle between the first locking surfaces 12 and the surface of the locking platform 11 is an acute angle.

[0043] The inner walls of the two corresponding engagement slots 21 are provided with a second engagement surface 22 that is adapted to the first engagement surface 12. The first engagement surface 12 and the second engagement surface 22 are parallel, so that the engagement platform 11 is effectively engaged between the two engagement slots 21.

[0044] The head of the locking platform 11 is positioned at the end where the locking platform 11 slides into the locking groove 21, and the locking platform 11 slides from its head into the space between the two locking grooves 21.

[0045] The head of the locking platform 11 is provided with inclined guide surfaces 13 on both sides. By setting the guide surfaces 13, the locking platform 11 can be smoothly slid into the two locking slots 21, thereby facilitating the locking and separation of the locking platform 11 and the locking slots 21.

[0046] One of the engagement grooves 21 has a recessed connecting groove 23 on its inner wall and a connecting hole 24 on its outer wall that communicates with the connecting groove 23; a fastener is connected in the connecting hole 24, and the fastener is used to fasten the engagement platform 11.

[0047] In some embodiments of this utility model, the fastener can be a fastening bolt. The fastening bolt extends into the connecting groove 23 through the connecting hole 24. The fastening bolt is threaded into the connecting hole 24. By rotating the fastening bolt, the fastening bolt and the engaging platform 11 engaged in the two engaging grooves 21 can come into contact, thereby achieving contact fastening of the engaging platform 11 and preventing the engaging platform 11 from moving, so that the engaging platform 11 can be stably and effectively engaged in the engaging groove 21.

[0048] In addition, when it is necessary to disassemble the Z-direction connecting seat 20, the fastening bolt can be rotated so that the fastening bolt retracts into the connecting groove 23, and the fastening bolt no longer abuts against the locking platform 11, thereby releasing the fastening of the locking platform 11, so that the locking platform 11 can slide out of the locking groove 21, thereby realizing the disassembly of the measuring seat 10.

[0049] In some embodiments of this utility model, the locking platform 11 is provided with a recessed first clearance groove 14. The first clearance groove 14 is used to avoid the edge of the locking groove 21, thereby facilitating the locking connection of the locking platform 11 in the two locking grooves 21.

[0050] In some embodiments of this utility model, the engaging groove 21 is provided with a recessed second clearance groove 25. The second clearance groove 25 is used to avoid the edge of the engaging platform 11, thereby facilitating the engaging connection of the engaging platform 11 in the two engaging grooves 21.

[0051] The positioning components include a positioning groove 15 disposed at the head of the locking platform 11 and a positioning post 26 disposed on the Z-direction connecting seat 20. When the locking platform 11 is engaged in the locking groove 21, the positioning post 26 is engaged in the positioning groove 15, which can position the locking platform 11, so that the locking platform 11 is stably and effectively engaged in the two mating grooves 21.

[0052] In some embodiments of this utility model, the positioning post 26 protrudes from the Z-direction connecting seat 20. The positioning post 26 can be cylindrical, and no specific limitation is made here.

[0053] The electrical connection between the measuring base 10 and the Z-direction connecting base 20 in this application is not achieved through direct cable insertion. Specifically, the locking platform 11 is provided with a first circuit board 16, which has multiple contacts; the Z-direction connecting base 20 is provided with a second circuit board 27, which has multiple protruding spring-loaded probes 28. When the locking platform 11 is engaged in the locking groove 21, the first circuit board 16 and the second circuit board 27 correspond to each other, and the multiple contacts and multiple spring-loaded probes 28 can be connected one-to-one, thereby achieving the electrical connection between the measuring base 10 and the Z-direction connecting base 20.

[0054] The measuring base 10 and the Z-direction connecting base 20 of this invention are not electrically connected via direct cable insertion. When connecting or disconnecting the measuring base 10, no cable insertion or removal is required. This invention allows for convenient and quick simultaneous installation and electrical connection of the measuring base 10. When connecting the measuring base 10, simply engage the locking platform 11 between the two locking slots 21 to simultaneously install and connect the measuring base 10. When disassembling the measuring base 10, there is no need to disconnect the cables of the measuring base 10 and the Z-direction connecting base 20; simply slide the locking platform 11 away from the two locking slots 21 to simultaneously disassemble the measuring base 10.

[0055] The measuring rod 30 is fixed to the outer wall of the measuring base 20. The fixing method can be adhesive bonding or other fixing connection methods commonly used in this technical field, and no specific restrictions are made here.

[0056] There are two measuring rods 30, which are fixed on the measuring base 20, and the axes of the two measuring rods 30 coincide.

[0057] The end of the measuring rod 30 is provided with a trigger probe 31, which is connected to a probe 32. The trigger probe 31 is a trigger probe commonly used in this technical field, and the probe 32 is a star-shaped probe commonly used in this technical field, which includes five probes and can realize measurements in five different directions.

[0058] A rotary probe 17 is connected to the measuring base 10. The rotary probe 17 can be a rotary probe commonly used in this technical field, such as a laser probe or an image probe, and no specific limitation is made here.

[0059] The rotating probe 17 is detachably connected to the measuring base 10, allowing for convenient and quick installation and disassembly of the rotating probe 17.

[0060] Disassembly. The detachable connection method can be bolted connection, snap-fit ​​connection, or other detachable connection methods commonly used in this technical field, and no specific restrictions are made here.

[0061] The rotating probe 17 can measure the external features of deep-hole parts, including surface curvature, flatness, and perpendicularity. The measuring rod 30 of this invention is equipped with a trigger probe 31 and a star-shaped stylus 32, allowing for measurement without the need to change direction.

[0062] Features can be measured in five directions. If the long axis deep hole is a through hole, two measuring rods 30 can be used for measurement. The two measuring rods 30 extend into the long axis deep hole from both ends and measure the long axis deep hole from two opposite directions, which is equivalent to double-stroke superimposed measurement.

[0063] In summary, the measuring device of this utility model measures the external features of deep hole parts by rotating the probe 17 and measuring the internal features of deep hole parts by measuring the measuring rod 30. The problem of measuring the internal and external features of complex long shaft deep holes can be solved by programming once.

[0064] The measuring rod 30 can be made of carbon fiber, which makes the measuring rod 30 strong and extends its service life.

[0065] Traditional measuring rods are mainly used to extend the probe. When the length of the measuring rod exceeds a certain value, the weight of the measuring rod increases accordingly. The weight of the measuring rod has a great impact on the probe, resulting in a sharp drop in measurement accuracy.

[0066] The measuring rod 30 of this invention has a hollow structure, which reduces its weight and allows for a maximum rod length of 1600mm without affecting the measurement accuracy of the measuring device. The measuring rod 30, as an independent component, is connected in series with the measuring base 10 and the rotating probe 17. This allows for the measurement of the entire part without needing to replace the measuring base 10 and rotating probe 17 during the inspection of the same part. A single programming operation can measure all the required features of the part, greatly improving measurement efficiency. Its core advantage lies in solving the problem of measuring long-axis deep holes, satisfying measurement requirements while ensuring high accuracy and efficiency.

[0067] The length of the measuring rod 30 can be customized according to the size of the measuring machine and the part being measured, and no specific limit is imposed here.

[0068] The measuring base 10 of this utility model is connected to a rotating probe 17 and two measuring rods 30 for measurement. The rotating probe 17 is detachable, which facilitates the installation and removal of the rotating probe 17. That is, different rotating probes 17 can be easily replaced on the measuring base 10 for measurement, so as to be applicable to different measurement tasks. Secondly, the length of the two measuring rods 30 can be customized according to the part to be measured, so as to meet the measurement of different parts.

[0069] In summary, the measuring device of this invention has strong applicability and can meet the measurement needs of different parts to be measured.

[0070] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A long-axis deep hole measuring device, characterized in that, include: Z-axis connector; A measuring base, to which a rotating probe is connected; The Z-axis connector and the measuring seat are electrically connected and are provided with a locking component and a positioning component. The locking component is used to realize the detachable locking connection between the Z-axis connector and the measuring seat, and the positioning component is used to position the Z-axis connector. Two measuring rods are fixed to the outer wall of the measuring base and the two measuring rods are oriented in opposite directions; the ends of the measuring rods are provided with measuring elements.

2. The long-axis deep hole measuring device as described in claim 1, characterized in that, The engagement assembly includes an engagement platform disposed on the measuring seat and two engagement slots disposed on the Z-direction connecting seat, wherein the two sides of the engagement platform are respectively engaged in the two engagement slots.

3. The long-axis deep hole measuring device as described in claim 2, characterized in that, One of the engagement grooves has a recessed connecting groove on its inner wall and a connecting hole on its outer wall that communicates with the connecting groove. A fastener is connected inside the connection hole, and the fastener is used to secure the locking platform.

4. The long-axis deep hole measuring device as described in claim 2, characterized in that, The locking platform has a first locking surface that is inclined on both sides, and the inner wall of the locking groove has a second locking surface that is adapted to the first locking surface.

5. The long-axis deep hole measuring device as described in claim 2, characterized in that, The head of the locking platform is provided with an inclined guide surface, which is used to allow the locking platform to enter the locking groove.

6. The long-axis deep hole measuring device as described in claim 2, characterized in that, The engagement platform is provided with a recessed first clearance groove, which is used to avoid the edge of the engagement groove; The engaging groove is provided with a recessed second clearance groove, which is used to avoid the edge of the engaging platform.

7. The long-axis deep hole measuring device as described in claim 2, characterized in that, The positioning component includes a positioning groove disposed on the head of the engagement platform and a positioning post disposed on the Z-direction connecting seat; when the engagement platform is engaged in the engagement groove, the positioning post is engaged in the positioning groove.

8. The long-axis deep hole measuring device as described in claim 2, characterized in that, The locking platform is equipped with a circuit board, and the Z-axis connector is equipped with a flexible serial port. When the locking platform is engaged in the locking slot, the circuit board and the elastic serial port are connected accordingly.

9. The long-axis deep hole measuring device as described in claim 1, characterized in that, The measuring device includes a trigger probe, which is connected to a star-shaped probe.

10. The long-axis deep hole measuring device as described in claim 1, characterized in that, The measuring rod has a hollow structure.

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