Measuring device

Abstract

The utility model relates to the technical field of dimension measurement, and provides a measuring device. The measuring device comprises a measuring assembly, an adjusting assembly and a limiting piece. The measuring assembly is used for measuring a to-be-measured piece; the limiting piece is used for limiting the to-be-tested piece; the adjusting assembly is arranged between the measuring assembly and the limiting piece and used for adjusting the relative position between the measuring assembly and the limiting piece so that the piece to be measured can be located on the measuring assembly. According to the utility model, the defect that the error of the measurement result is large because the rolling bodies need to be manually positioned and cannot be accurately positioned when the distance between the rolling bodies is measured in the prior art is overcome, and the measurement device capable of positioning the rolling bodies is realized, so that the measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dimension measurement, in particular to a measuring device. Background Art

[0002] The slewing bearing is composed of an outer ring, an inner ring, rolling elements and a sealing strip. The rolling elements roll in the raceways of the outer ring and the inner ring. Slewing bearings are widely used in construction machinery, such as excavators, pump trucks, and cranes. They are key components that can withstand axial loads, radial loads, and overturning moments.

[0003] The rolling elements in most ball slewing bearings are evenly isolated and distributed using isolation blocks. Isolation blocks play a vital role in the use and performance of slewing bearings. If the isolation block size is out of tolerance, it may cause a difference in the number of steel balls in the slewing bearing, or cause cavities in the slewing bearing raceway, affecting the performance of the slewing bearing. Therefore, it is necessary to measure the size of the isolation block to avoid affecting the use and performance of the slewing bearing due to dimensional errors.

[0004] The existing measuring device requires manual positioning of the rolling element when measuring the rolling element spacing, and cannot achieve accurate positioning of the rolling element, resulting in large errors in the measurement results. Utility Model Content

[0005] The utility model provides a measuring device for solving the problem that in the prior art, when measuring the rolling body spacing, the rolling body needs to be positioned manually, and accurate positioning of the rolling body cannot be achieved, thus resulting in a large error in the measurement result. A measuring device capable of positioning the rolling body is realized, thereby improving the measurement accuracy.

[0006] The utility model provides a measuring device, comprising a measuring component, an adjusting component and a limiting component. The measuring component is used to measure a piece to be measured; the limiting component is used to limit the piece to be measured; the adjusting component is arranged between the measuring component and the limiting component, and is used to adjust the relative position between the measuring component and the limiting component, so that the piece to be measured is positioned on the measuring component.

[0007] According to a measuring device provided by the utility model, the adjustment component includes a first connecting component, a second connecting component and a distance adjusting component. The first connecting component is arranged on the limiter; the second connecting component is arranged on the measuring component; the distance adjusting component is arranged between the first connecting component and the second connecting component, and is used to adjust the relative position between the first connecting component and the second connecting component, so as to adjust the relative position between the measuring component and the limiter.

[0008] According to a measuring device provided by the utility model, the first connecting component includes a mounting plate and an adjusting plate. The mounting plate is arranged on the limiting member; the adjusting plate is arranged on the mounting plate and connected to the second connecting component.

[0009] According to a measuring device provided by the utility model, the distance adjustment component includes a threaded rod and a guide rod. The threaded rod passes through the adjustment plate and the second connecting component, the threaded rod is rotatably connected to the adjustment plate, and the threaded rod is threadedly connected to the second connecting component; the guide rod passes through the adjustment plate and the second connecting component, the guide rod is fixedly connected to the adjustment plate, and the guide rod is slidably connected to the second connecting component.

[0010] According to a measuring device provided by the utility model, a rotating cap is provided at one end of the threaded rod, and a protective portion is provided on the side of the rotating cap.

[0011] According to a measuring device provided by the utility model, the position-limiting member comprises a position-limiting member body, the position-limiting member body is provided with a position-limiting portion, and the position-limiting portion is used to limit the piece to be measured.

[0012] According to a measuring device provided by the utility model, the limiting portion is a groove, the groove is arranged along the length direction of the limiting member body, and the groove extends from one end of the limiting member body to the other end; the two side surfaces of the groove are inclined and symmetrically arranged.

[0013] According to a measuring device provided by the utility model, the measuring assembly includes a ruler frame and an adjusting component. The ruler frame is fixedly connected to the second connecting component, an opening is provided on one side of the ruler frame, and a micrometer screw and an anvil are provided at both ends of the opening, the micrometer screw and the anvil are coaxial and spaced apart; the adjusting component is connected to the micrometer screw and is used to adjust the distance between the micrometer screw and the anvil.

[0014] According to a measuring device provided by the utility model, the adjusting component is provided with a fine adjustment knob and a coarse adjustment knob, and the fine adjustment knob and the coarse adjustment knob are both used to adjust the micrometer screw.

[0015] According to a measuring device provided by the utility model, the measuring component further comprises a display part, and the display part is used to display the distance between the micrometer screw and the measuring anvil.

[0016] The utility model can ensure that the workpiece to be measured remains stable during the measurement process by setting a limiter, thereby avoiding measurement errors caused by the movement of the workpiece to be measured. Secondly, by setting an adjustment component, the relative position between the measuring component and the limiter can be accurately adjusted, which can ensure that the workpiece to be measured is accurately positioned on the measuring component, thereby improving the accuracy of the measurement. The design of the adjustment component also enables the utility model to adapt to workpieces to be measured of different sizes and shapes, thereby improving the versatility and flexibility of the device. The operator can easily adjust the position between the measuring component and the limiter without the need for complicated operating procedures, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is an exploded diagram of the measuring device provided by the utility model.

[0019] Figure 2 It is a structural schematic diagram of the measuring device provided by the utility model.

[0020] Figure 3 This is an exploded view of the rolling elements and spacers inside a ball slewing bearing.

[0021] Reference numerals: 100: measuring assembly; 110: fine adjustment knob; 120: coarse adjustment knob; 130: display unit; 140: ruler frame; 150: micrometer screw; 160: measuring anvil.

[0022] 200: adjustment component; 210: first connecting component; 211: mounting plate; 212: adjustment plate; 220: second connecting component; 230: distance adjustment component; 231: threaded rod; 232: guide rod.

[0023] 300: limiter; 310: limiter body; 320: limiter portion.

[0024] 400: isolation component; 410: rolling element; 420: isolation block. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0027] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0030] Figure 3 The following is an exploded view of the rolling elements and spacers inside a ball slewing bearing. Figure 3As shown, the rolling elements 410 inside the ball-type slewing bearing are isolated by isolation blocks 420. When its size needs to be measured, it is usually split into an isolation block 420 and the rolling elements 410 on both sides thereof for measurement as a whole. During measurement, since the rolling element 410 is spherical, in order to accurately measure its size, it is necessary to align the center of the rolling element 410 with the measuring device, and the existing method requires manual alignment, which will result in a large error. In order to solve this technical problem, the utility model designs a measuring device. It should be noted that the use of the utility model is not limited to measuring the rolling elements 410 and isolation blocks 420 inside the ball-type slewing bearing. The following is combined with Figure 1-Figure 3 The embodiments of the present invention are described.

[0031] Figure 1 This is an exploded view of the measuring device provided by the utility model. Figure 1 The measuring device provided by the embodiment of the utility model includes a measuring assembly 100, an adjusting assembly 200 and a stopper 300. The measuring assembly 100 is used to measure the object to be measured; the stopper 300 is used to stop the object to be measured; the adjusting assembly 200 is arranged between the measuring assembly 100 and the stopper 300, and is used to adjust the relative position between the measuring assembly 100 and the stopper 300, so that the object to be measured is positioned on the measuring assembly 100.

[0032] In the above structure, by setting the limiter 300, it is possible to ensure that the piece to be measured remains stable during the measurement process, thereby avoiding measurement errors caused by the movement of the piece to be measured. Secondly, by setting the adjustment component 200, the relative position between the measuring component 100 and the limiter 300 can be accurately adjusted, which can ensure that the piece to be measured is accurately positioned on the measuring component 100, thereby improving the accuracy of the measurement. The design of the adjustment component 200 also enables the utility model to adapt to pieces to be measured of different sizes and shapes, thereby improving the versatility and flexibility of the device. The operator can easily adjust the position between the measuring component 100 and the limiter 300 without complicated operating procedures, thereby improving work efficiency.

[0033] In some possible embodiments, the adjustment component 200 also includes a servo motor, a driver, an encoder, a control system and a displacement sensor. The servo motor is connected to the driver through a U / V / W three-phase line to transmit electric energy and control signals; the encoder is electrically connected to the servo motor and the driver to feedback the position and speed information of the motor; the driver is connected to the control system (such as PLC, CNC or PC) through a communication interface such as RS-guide rod 232, RS-485 or EtherCAT. The control system sends a control instruction to the driver, and the driver drives the servo motor to move according to the instruction. The displacement sensor is connected to the control system through a signal line. The control system reads the data of the displacement sensor for real-time monitoring of the position and size of the test piece. The limiter 300 (such as a limit switch, a grating ruler, etc.) is also connected to the control system through a signal line. When the test piece reaches the preset position, the limiter 300 sends a signal to the control system, and the control system adjusts the movement of the servo motor according to the signal.

[0034] In the above structure, the control system reads the data of the displacement sensor in real time to obtain the current position of the test piece. The current position obtained is compared with the preset position to calculate the position deviation. The control system (including parameters such as target position, speed, acceleration, etc.) calculates the control instruction based on the position deviation and sends it to the servo driver through the communication interface. After receiving the control instruction, the servo driver drives the servo motor to move according to the instruction. The encoder on the servo motor feeds back the position and speed information of the motor to the driver in real time. The driver performs PID adjustment based on the feedback information to ensure that the motor reaches the target position accurately. When the test piece reaches the preset position, the limiter 300 sends a signal to the control system. The control system determines whether it is necessary to stop the movement of the servo motor based on the signal to prevent overtravel or collision.

[0035] Reference Figure 1 In some embodiments of the utility model, the adjustment component 200 includes a first connecting component 210, a second connecting component 220 and a distance adjusting component 230, the first connecting component 210 is arranged on the limit member 300; the second connecting component 220 is arranged on the measuring component 100; the distance adjusting component 230 is arranged between the first connecting component 210 and the second connecting component 220, and is used to adjust the relative position between the first connecting component 210 and the second connecting component 220, so as to adjust the relative position between the measuring component 100 and the limit member 300.

[0036] Specifically, the first connecting member 210 can be detachably connected to the limiter 300 by bolts, or can be glued to the limiter 300, or can be welded to the limiter 300. The connection method of the first connecting member 210 and the limiter 300 is not specifically limited, as long as the two can move synchronously. The connection method of the second connecting member 220 and the measuring assembly 100 can refer to the connection method of the first connecting member 210 and the limiter 300.

[0037] In the above structure, by adjusting the relative position between the first connecting member 210 and the second connecting member 220, the relative position between the measuring assembly 100 and the stopper 300 is adjusted. In this way, the distance adjustment member 230 can be prevented from directly contacting the measuring assembly 100 and the stopper 300, thereby preventing damage to the structures of the measuring assembly 100 and the stopper 300. In addition, the first connecting member 210 and the second connecting member 220 are detachably connected to the stopper 300 and the measuring assembly 100, respectively, so that maintenance can be more convenient, and replacement of the measuring assembly 100 and the stopper 300 is also more convenient.

[0038] Reference Figure 1 In some embodiments of the utility model, the first connecting component 210 includes a mounting plate 211 and an adjusting plate 212. The mounting plate 211 is arranged on the limiter 300; the adjusting plate 212 is arranged on the mounting plate 211 and is connected to the second connecting component 220. The distance adjusting component 230 includes a threaded rod 231 and a guide rod 232. The threaded rod 231 passes through the adjusting plate 212 and the second connecting component 220, and the adjusting plate 212 is rotatably connected to the threaded rod 231, and the second connecting component 220 is threadedly connected to the threaded rod 231; the guide rod 232 passes through the adjusting plate 212 and the second connecting component 220, the guide rod 232 is fixedly connected to the adjusting plate 212, and the guide rod 232 is slidably connected to the second connecting component 220.

[0039] Specifically, two adjusting plates 212 are provided, and the two adjusting plates 212 are symmetrically arranged up and down, and the two adjusting plates 212 are arranged perpendicular to one side of the mounting plate 211, and the adjusting plates 212 can be connected to the mounting plate 211 by bolts. The other side of the mounting plate 211 can be connected to the stopper 300 by bolts. The second connecting member 220 is arranged in parallel between the two adjusting plates 212, and one end of the second connecting member 220 is fixedly connected to the measuring assembly 100. Two guide rods 232 are provided, and the two guide rods 232 are symmetrically distributed on both sides of the threaded rod 231. The two guide rods 232 are both fixedly connected to the adjusting plate 212, and the two guide rods 232 pass through the second connecting member 220, and are slidably connected to the second connecting member 220, and the guide rods 232 pass through the adjusting plate 212 and the second connecting member 220 in sequence from top to bottom.

[0040] When it is necessary to adjust the relative position of the measuring component 100 and the limit member 300, the limit member 300 can be fixed first, and then the threaded rod 231 can be rotated. Since the threaded rod 231 is threadedly connected to the second connecting component 220, and the two guide rods 232 will limit the rotation of the second connecting component 220, the second connecting component 220 will move up and down along the guide rods 232 driven by the rotation of the threaded rod 231, thereby driving the measuring component 100 to move up and down, thereby adjusting the relative position between the measuring component 100 and the limit member 300.

[0041] In the above structure, the relative position between the measuring component 100 and the limiting member 300 can be adjusted simply by rotating the threaded rod 231, thereby greatly facilitating the positioning of the isolation component 400 without improving the positioning accuracy of the isolation component 400.

[0042] Reference Figure 1 In some embodiments of the present invention, a rotating cap is provided at one end of the threaded rod 231 , and a protective portion is provided on the side of the rotating cap. Specifically, the rotating cap is provided at the top end of the threaded rod 231 .

[0043] In the above structure, the setting of the rotating cap can be more labor-saving. The design of the anti-slip pattern effectively increases the friction coefficient of the rotating cap surface, so that the user can hold the rotating cap more stably when rotating the threaded rod 231, and can maintain a stable grip even when the hands are wet or greasy, thereby improving the accuracy of the operation. In some possible embodiments, the size, shape and surface treatment of the threaded rod 231 can be made more in line with the structure and holding habits of human fingers. This not only improves the comfort of operation, but also reduces hand fatigue caused by long-term operation.

[0044] The material of the rotating cap can be selected from soft materials such as rubber and silicone with good anti-slip properties, which can further improve the anti-slip properties of the threaded rod 231. The design of the anti-slip pattern can be customized according to different application scenarios and user needs. For example, for a threaded rod 231 that needs to be precisely adjusted, a more dense anti-slip pattern design can be used to improve the accuracy of the operation; and for a threaded rod 231 that needs to be rotated quickly, a more rugged anti-slip pattern design can be used to improve the smoothness of the operation.

[0045] Reference Figure 1 In some embodiments of the present invention, the position limiting member 300 includes a position limiting member body 310, and the position limiting member body 310 is provided with a position limiting portion 320, and the position limiting portion 320 is used to limit the position of the object to be tested. By setting the position limiting member 300, the object to be tested can be fixed to prevent the object to be tested from loosening during the adjustment process. This makes the adjustment more convenient and reduces the error.

[0046] Reference Figure 1 In some embodiments of the present invention, the limiting portion 320 is a groove, which is arranged along the length direction of the limiting member body 310, and the groove extends from one end of the limiting member body 310 to the other end; the two side surfaces of the groove are inclined and symmetrically arranged.

[0047] In the above structure, since the two side surfaces of the groove are inclined and symmetrically arranged, when the ball is placed in the groove, it will automatically align due to the guidance of the inclined surface, thereby achieving self-positioning. This design can reduce the inaccuracy of manual operation and improve assembly efficiency. Secondly, the inclined and symmetrical side design can also ensure that the ball is subjected to a certain clamping force in the groove, thereby preventing the ball from falling off or shifting when subjected to external force. Furthermore, the design of the groove can adapt to balls of different sizes. By adjusting the size and shape of the groove, the positioning and fixation of balls of different specifications can be achieved.

[0048] Reference Figure 1 In some embodiments of the utility model, the measuring assembly 100 includes a ruler frame 140 and an adjusting component. The ruler frame 140 is fixedly connected to the second connecting component 220, and an opening is provided on one side of the ruler frame 140. The two ends of the opening are respectively provided with a micrometer screw 150 and an anvil 160, and the micrometer screw 150 and the anvil 160 are coaxial and spaced apart; the adjusting component is connected to the micrometer screw 150, and is used to adjust the distance between the micrometer screw 150 and the anvil 160. The adjusting component is provided with a fine adjustment knob 110 and a coarse adjustment knob 120, and the fine adjustment knob 110 and the coarse adjustment knob 120 are both used to adjust the micrometer screw 150. The measuring assembly 100 also includes a display unit 130, and the display unit 130 is used to display the distance between the micrometer screw 150 and the anvil 160.

[0049] Specifically, the measuring assembly 100 can be a screen display micrometer, which uses digital technology and can achieve an accuracy of 0.001 mm, i.e., one thousandth of a millimeter. This high-precision feature enables it to meet most high-precision measurement requirements. Secondly, the screen display unit 130 can use an LCD liquid crystal display screen, which can make the readings clear and easy to read, avoiding the errors that may be caused by reading conversion in traditional micrometers.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A measuring device, characterized in that: include: A measuring component, used for measuring the object to be tested; A limiting member, used for limiting the position of the object to be tested; The adjusting component is disposed between the measuring component and the limiting member, and is used for adjusting the relative position between the measuring component and the limiting member so that the workpiece to be measured is positioned on the measuring component.

2. The measuring device according to claim 1, characterized in that The adjustment component comprises: A first connecting member, provided on the limiting member; A second connecting component, provided on the measuring assembly; The distance adjusting component is arranged between the first connecting component and the second connecting component, and is used for adjusting the relative position between the first connecting component and the second connecting component, so as to adjust the relative position between the measuring component and the limiting component.

3. The measuring device according to claim 2, characterized in that The first connecting component comprises: A mounting plate, arranged on the limiting member; The adjusting plate is arranged on the mounting plate and connected to the second connecting component.

4. The measuring device according to claim 3, characterized in that The distance adjusting component comprises: a threaded rod, passing through the adjustment plate and the second connecting member, the threaded rod being rotatably connected to the adjustment plate, and the threaded rod being threadedly connected to the second connecting member; The guide rod passes through the adjustment plate and the second connecting component, the guide rod is fixedly connected to the adjustment plate, and the guide rod is slidably connected to the second connecting component.

5. The measuring device according to claim 4, characterized in that A rotating cap is provided at one end of the threaded rod, and a protective portion is provided on the side of the rotating cap.

6. The measuring device according to any one of claims 1 to 5, characterized in that: The limiting member comprises a limiting member body, the limiting member body is provided with a limiting portion, and the limiting portion is used to limit the piece to be tested.

7. The measuring device according to claim 6, characterized in that The limiting portion is a groove, which is arranged along the length direction of the limiting member body and extends from one end of the limiting member body to the other end; two side surfaces of the groove are inclined and symmetrically arranged.

8. The measuring device according to any one of claims 2 to 5, characterized in that: The measuring assembly comprises: A ruler frame, the ruler frame is fixedly connected to the second connecting member, one side of the ruler frame is provided with an opening, two ends of the opening are respectively provided with a micrometer screw and an anvil, the micrometer screw and anvil are coaxial and spaced apart; An adjusting component is connected to the micrometer screw and is used to adjust the distance between the micrometer screw and the anvil.

9. The measuring device according to claim 8, characterized in that The adjusting component is provided with a fine adjustment knob and a coarse adjustment knob, and the fine adjustment knob and the coarse adjustment knob are both used to adjust the micrometer screw.

10. The measuring device according to claim 9, characterized in that The measuring assembly further comprises a display unit, and the display unit is used to display the distance between the micrometer screw and the anvil.

Images