CN218034966U - Off-shell shaft system measuring equipment - Google Patents

Abstract

The application relates to an off-shell shafting measuring device which comprises a machine table, a deflection base, a pressing mechanism, a measuring mechanism and a measuring auxiliary tool; the pressing mechanism is arranged at the top of the machine table and is in sliding connection with the pressing mechanism, and the pressing mechanism can move up and down in the vertical direction; the measuring mechanism is arranged on the pressing mechanism, and the bottom of the measuring mechanism is provided with a displacement sensor; the displacement base is arranged at the lower part of the machine table and is a three-axis driving mechanism so as to be convenient for adapting to workpieces to be measured with various specifications; on the base that shifts is placed through the gearbox shafting that will leave the shell, the very big axle of its a plurality of differences in height of measuring, the matching has the floating sleeve that can reciprocate, through the floating sleeve of high difference, the shaft face that the difference in height is very big passes through to measure the approximate height of auxiliary fixtures shafting height substitute measurement face, the height between a plurality of measurement faces of the work piece that has shortened to await measuring, reduce the requirement of equipment measurement height, improve measuring accuracy, can measure gearbox shafting's multiple spot position height and multiple model.

Description

Off-shell shaft system measuring equipment

Technical Field

The application relates to the field of production and processing, in particular to an off-shell shafting measuring device.

Background

The gearbox is an important power part on a vehicle, can change the transmission ratio and expand the torque and the rotating speed of a driving wheel, is upgraded along with the development of modern science and technology, is more convenient to operate, has the key for measuring the dynamic property, the economical property and the driving property of the vehicle, and mainly has mechanical transmission, hydraulic transmission and hydrostatic transmission in the current speed change system. The gearbox has manual gear shifting and power gear shifting, and the structure has a fixed shaft type and a planetary type. The gearbox usually comprises a gearbox shell, a clutch shell, an output shaft, an input shaft and a differential mechanism structure, gaskets need to be arranged among the structures, the thickness of the gaskets can influence the matching degree of all parts of the gearbox, even if very small errors exist among all parts, the superposition of a plurality of errors generally increases the errors, so that the gearbox cannot meet the precision requirement, and the operation of the gearbox is influenced.

In summary, in the conventional device, when the height of the shaft system of the transmission product is measured, the heights of the upper and lower measuring surfaces of the workpiece are usually measured directly, but the height of the workpiece is relatively large, so that the measurement result of the height of the shaft system of the transmission is not accurate enough.

SUMMERY OF THE UTILITY MODEL

In view of the above, the application provides an off-shell shaft system measuring device, which is suitable for measuring the height of a transmission shaft system and comprises a machine table, a displacement base, a pressing mechanism, a measuring mechanism and a measuring auxiliary tool; the machine table is hollow; the pressing mechanism is arranged at the top of the machine table and is in sliding connection with the pressing mechanism, and the pressing mechanism can move up and down in the vertical direction; the measuring mechanism is arranged on the pressing mechanism, and a displacement sensor is arranged at the bottom of the measuring mechanism; the displacement base is arranged at the lower part of the machine table, is a three-axis driving mechanism and is used for adapting to-be-detected workpieces with various specifications, and is used for placing the to-be-detected workpieces; the auxiliary measurement tool is hollow inside and open at the bottom, a plurality of floating sleeves capable of moving up and down within a preset height range are mounted on the auxiliary measurement tool, and the floating sleeves are respectively matched with all shafting of the gearbox to form a shafting height substitute measurement surface together.

In a possible implementation manner, a spring structure is fixedly installed in one of the floating sleeves, a positioning tip is arranged at the lower end of the spring structure downwards, and the tip end of the positioning tip can extend into a rotating shaft of the gearbox.

In a possible implementation manner, a rotating mechanism is arranged at the lower part of the shifting base and comprises a rotating motor and a rotating shaft; the rotating motor is arranged below the deflection base and is in transmission connection with the rotating shaft; the rotating shaft penetrates through the shifting base and is suitable for being in transmission connection with a gear shaft of the workpiece to be detected.

In a possible implementation manner, the pressing mechanism comprises a lifting sliding table and a measuring sliding table; the lifting sliding table is arranged on the machine table and is in sliding connection with the machine table through a four-guide-pillar mechanism driven by a servo lead screw in the vertical direction; the measurement sliding table is installed on the lifting sliding table and is driven to move relative to the lifting sliding table through a locking cylinder which outputs longitudinally.

In a possible implementation manner, the measuring mechanism further comprises a servo lead screw, a pressure sensor, a balance cylinder and a support frame; the support frame is fixedly arranged in the middle of the measuring sliding table; the servo lead screw is vertically arranged at the top of the support frame; the pressure sensor is arranged in the middle of the support frame, and the balance cylinder is arranged beside the pressure sensor and used for balancing gravity; the displacement sensor is arranged at the bottom of the support frame.

In a possible implementation manner, the displacement base is a three-layer stacking structure which is longitudinally arranged, the middle layer structure and the bottom layer structure move in two mutually perpendicular directions in a horizontal plane through a servo module, the top layer is a roller line body and used for conveying the workpiece to be detected, and the top layer structure is driven to lift through a lifting cylinder.

In a possible implementation mode, a tray is placed on the top layer structure, a follow tool is arranged on the tray, and a workpiece to be detected is placed on the follow tool and used for positioning the follow tool.

In one possible implementation, the suspension arm is further included; the suspension arm is arranged beside the deflection base and used for placing a workpiece to be measured on the deflection base.

In a possible implementation manner, a side beam on one side of the machine table is provided with a grating and a sensor matched with the grating.

In a possible implementation mode, the system further comprises a control cabinet and a display; the control cabinet is arranged beside the machine table and is electrically connected with the deflection base, the pressing mechanism and the electric control assembly on the measuring mechanism; one side of the machine table extends outwards to form an extension frame, the display is installed at the tail end of the extension frame, and the display is electrically connected with the control cabinet.

The beneficial effect of this application: the gearbox shafting of the off-shell is placed on the deflection base, a plurality of shafts with large height difference to be measured are matched with the floating sleeves which can move up and down in the preset height, the shaft surfaces with large height difference are transited to the approximate height of the measurement auxiliary tool shafting height substitute measurement surface through the floating sleeves with different heights, namely, the measurement mechanism is changed into the measurement auxiliary tool from a plurality of measurement surfaces with large height difference of the original measurement off-shell gearbox component, the shaft height substitute measurement surface with small height difference is arranged on the measurement auxiliary tool, the heights between the plurality of measurement surfaces of the workpiece to be measured are effectively shortened, the requirement of the measurement height of the equipment is reduced, the measurement accuracy is also improved, and the multi-point height and various types of the gearbox shafting can be measured.

Furthermore, the off-shell shafting measuring equipment is a measuring machine with a single-side head and an XY servo displacement mode, is unlimited in a reserved range, can be compatible with different products by replacing different measuring auxiliary tools, is an integrated structure for secondary processing after processing and assembling, is high in precision, is separated from a measuring head and an off-shell gearbox shafting product, and is convenient to replace and high in compatibility.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

Fig. 1 shows a three-dimensional structure diagram of an off-shell shafting measuring apparatus according to an embodiment of the present application;

FIG. 2 shows a structural diagram of a measurement auxiliary tool and a transmission shaft system according to an embodiment of the present application;

FIG. 3 shows a side sectional view of a measurement auxiliary tool according to an embodiment of the present application;

FIG. 4 shows a cross-sectional view of the measurement auxiliary tool and a transmission shaft of the embodiment of the application after being assembled;

FIG. 5 is a structural diagram of a measurement auxiliary tool and a transmission shaft system in another angle according to the embodiment of the present application;

FIG. 6 shows an enlarged view of a portion of a transmission shafting according to an embodiment of the present application;

fig. 7 is a perspective view showing a rotation mechanism according to an embodiment of the present application;

fig. 8 is a perspective view showing a measuring mechanism according to an embodiment of the present application;

fig. 9 is a perspective view showing a pressing mechanism according to an embodiment of the present application;

fig. 10 is a perspective view showing a structure of the shift base according to the embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application or for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

As shown in fig. 1 to 10, the off-shell shafting measuring device is suitable for measuring the height of the transmission shafting 80, and comprises: the machine table 10, the base 20 shifts, hold-down mechanism 40, measuring mechanism 30 and measurement auxiliary fixtures 70, the inside cavity of machine table 10, hold-down mechanism 40 sets up at machine table 10 top, with hold-down mechanism 40 sliding connection, hold-down mechanism 40 can reciprocate in vertical direction, measuring mechanism 30 sets up on hold-down mechanism 40, the bottom is provided with displacement sensor 34, the base 20 that shifts sets up in the lower part of machine table 10, and the base 20 that shifts is the triaxial actuating mechanism, the work piece that awaits measuring that can the various specifications of adaptation, be used for placing the work piece that awaits measuring on the base 20 that shifts, the inside cavity of measurement auxiliary fixtures 70, the bottom is uncovered, install a plurality of floating sleeve 71 that can reciprocate in presetting the height range on the measurement auxiliary fixtures 70, floating sleeve 71 respectively with each shafting phase-match of gearbox, constitute shafting height jointly and replace measuring face 74.

It should be noted that the workpiece to be measured referred to in this application is usually a component separated from the outer box (housing) of the transmission case and only has its internal integral shaft system.

In this embodiment, the gearbox shaft system 80 that is separated from the casing is placed on the displacement base, a plurality of shafts with large height difference to be measured are provided with the floating sleeves 71 capable of moving up and down in the preset height in a matching manner, and the shaft surfaces with large height difference are transited to the approximate height of the shaft system height measuring surface 74 of the measurement auxiliary tool 70 through the floating sleeves 71 with different heights, that is, the measurement mechanism is changed from a plurality of original measurement surfaces with large height difference of the separated gearbox component to the shaft system height measuring surface 74 with small height difference on the measurement auxiliary tool 70, so that the heights between the plurality of measurement surfaces of the workpiece to be measured are effectively shortened, the requirement of the measurement height of the equipment is lowered, the measurement accuracy is also improved, and the multi-point height and various types of the gearbox shaft system 80 can be measured.

The conventional pad selecting machine method is to make measuring heads corresponding to different heights aiming at shafts with different heights, generally adopts a multi-measuring-head measuring mode, if other products are compatible, the measuring heads can be changed theoretically under the condition that the center distance of the product is not changed, but the actions are complex, the measuring reference can be changed with insufficient precision, equipment cannot be compatible under the condition that the center distance of the product is changed, so that the equipment compatibility is poor, and a special machine is generally made aiming at the product; the measuring machine with the single-side head and the XY servo displacement mode is unlimited in a reserved range, different products can be compatible by replacing different measuring auxiliary tools, the measuring auxiliary tool 70 is an integrated structure which is processed and assembled and then processed again, the precision is high, the measuring auxiliary tool is separated from a measuring head and a gearbox shaft system which is separated from a shell, the production is convenient to change, and the compatibility is strong.

Furthermore, the upper end of the floating sleeve 71 is used as a detection surface, shafts with different heights are arranged on the top of the floating sleeve 71 with different heights and matched with the shafts, and the floating sleeve 71 has a closer height on the auxiliary measuring tool 70, so that the measurement is convenient.

In one specific embodiment, a spring structure 73 is fixedly installed in one of the floating sleeves 71, a positioning tip 72 is arranged at the lower end of the spring structure 73 in a downward direction, and the tip end of the positioning tip 72 can extend into a rotating shaft of the gearbox.

In this embodiment, a spring structure 73 is installed in one of the floating sleeves 71 and is fixedly installed in the floating sleeve 71, and a positioning tip 72 is installed in the floating sleeve 71, and the mounting direction of the positioning tip 72 is downward and can be fixed to the spring structure 73 with the upper end thereof. The spring structure 73 and the positioning member 72 structure enhance the stability of the overall measurement when the rotating shaft rotates.

Specifically, as shown in fig. 6, on the transmission shafting 80, the top surfaces of a plurality of shafts: the first axis measuring surface 81, the second axis measuring surface 82 and the third axis measuring surface 83 are replaced by the axis height replacing measuring surface 74 which is corresponding to the position of each axis and has a small height difference with the top of the auxiliary measuring tool through different floating sleeves 71, and thus more precise measurement is completed.

More specifically, the specific work flow of the off-shell shafting measuring equipment is as follows:

placing the follow-up tool, the workpiece to be measured and the measurement auxiliary tool 70 on the butt joint line body section through manual operation of the suspension equipment;

manually starting the equipment, enabling the traveling tool and the workpiece to enter the displacement base 20 from the butt joint line body section and enter the equipment, and starting an automatic program;

after the following tool is in place, the roller way descends, the displacement base 20 starts to displace to a set coordinate, and the workpiece to be measured completes coarse positioning;

the pressing mechanism 40 descends, the lifting sliding table 41 descends in place, the measuring sliding table 42 further presses the upper surface of the workpiece to be measured, and the positioning of the workpiece to be measured is completed;

the rotating mechanism 60 extends out and rotates, after the splines are matched, the rotating motor 61 extends out in place, and the rotating shaft drives the shafting gear to rotate;

the measuring mechanism 30 descends, and the displacement sensor 34 contacts the point to be measured of the workpiece to be measured to complete one measurement;

the measuring mechanism 30 ascends, the pressing mechanism 40 ascends, and three times of measurement is repeatedly completed;

the system calculates an average value and displays a measurement result;

the measuring mechanism 30 and the pressing mechanism 40 are lifted, the rotating mechanism 60 returns to the original point, then the roller bed follow-up tool workpiece is lifted, and the workpiece flows out of the equipment; and checking measurement display to finish one measurement.

It needs to be emphasized that the measuring tool needs to use different tools according to different types of workpieces to be measured, so that the universality of the device is achieved.

As shown in fig. 7, in one embodiment, a rotating mechanism 60 is disposed below the shifting base 20 and includes a rotating motor 61 and a rotating shaft, the rotating motor 61 is disposed below the shifting base 20 and is in transmission connection with the rotating shaft, and the rotating shaft penetrates through the shifting base 20 and is adapted to be in transmission connection with a gear shaft of a workpiece to be measured.

In this embodiment, the rotating mechanism 60 is a servo cylinder integrated mechanism, a servo provides rotation, a cylinder drives a servo rotating sliding sleeve to feed integrally, an expansion link 63 is arranged beside the lifting cylinder 62, and the lifting cylinder 62 and the expansion link 63 are fixed to the lower part of the shifting base 20 through a mounting plate 64.

The rotating mechanism 60 mainly functions to drive each shafting of the gearbox to rotate, so that each shafting of a product is in running-in for a certain time, errors of measured values caused by gear and bearing clearances of each shafting are reduced, and the measurement accuracy is improved during measurement.

The gear shaft is connected with a workpiece to be measured in a butt joint mode through a spline, the gear shaft of the workpiece is driven to rotate, the measured data are uniform and accurate, and the revolution is less than or equal to 200r/min.

As shown in fig. 9, in one embodiment, the pressing mechanism 40 includes an elevation sliding table 41 and a measurement sliding table 42, the elevation sliding table 41 is installed on the machine table 10, the four-guide-post mechanism 43 is driven by the vertical servo screw 31 to be slidably connected with the machine table 10, the measurement sliding table 42 is installed on the elevation sliding table 41, and the measurement sliding table 42 and the elevation sliding table 41 are driven to move relatively by a longitudinally-output locking cylinder.

In this embodiment, the lifting slide table is divided into two layers, the lifting slide table 41 is installed on the machine table 10, the servo screw 31 drives the four-guide-post mechanism 43 to lift and lower, most of the stroke of the pressing action is completed, four sides are provided with locking cylinders to realize air balance, the measurement slide table 42 is installed on the large slide table and driven by the locking cylinders, the four-guide-post spherical structure allows micro deviation of the upper surface of a micro workpiece, and the small slide table completes small-stroke pressing.

Further, the machine table 10 is formed by welding and assembling steel pipes, and the strength of the equipment is guaranteed.

As shown in fig. 8, in one embodiment, the measuring mechanism 30 further includes a servo screw 31, a pressure sensor 32, a balance cylinder 33, and a support frame, the support frame is fixedly installed in the middle of the measuring sliding table 42, the servo screw 31 is vertically disposed on the top of the support frame, the pressure sensor 32 is disposed in the middle of the support frame, the balance cylinder 33 is disposed beside the pressure sensor 32 to balance the gravity, and the displacement sensor 34 is disposed at the bottom of the support frame.

In this embodiment, the servo screw 31 driving mechanism is integrated with a displacement sensor 34 contacting a point to be measured of a workpiece to be measured, a pressure sensor 32 controls pressure, and a balance cylinder 33 is used for balancing gravity.

The pressure sensor 32 displays the pressure data of the servo pressing shaft system of the feedback measuring mechanism in real time, and different servo pre-pressures of the shaft systems can be switched through the data of the pressure sensor 32.

In one embodiment, the indexing base 20 is a vertically disposed three-layer stacked structure, the middle layer structure and the bottom layer structure move in two directions perpendicular to each other in the horizontal plane through a servo module, the top layer is a roller line body for transporting a workpiece to be measured, and the lifting cylinder 62 drives the top layer structure to lift.

In this embodiment, the shifting base 20 is a three-layer structure, the lower two layers are XY plane shifting bases, a servo module is used for shifting, the upper layer is a roller line body, the servo module can be lifted, the roller lifting load follow-up tool is in butt joint with the inlet and outlet line bodies, the roller is separated from the follow-up tool when descending, the follow-up tool falls on a positioning support and a positioning pin on the second layer of the equipment shifting base 20, and the follow-up tool can be positioned and shifted.

In one embodiment, a tray is placed on the top layer structure, a follow tool is arranged on the tray, and a workpiece to be tested is placed on the follow tool to position the follow tool.

In one embodiment, a side beam on one side of the machine 10 is provided with a grating and a sensor matched with the grating.

In the above embodiment, more specifically, the lifting cylinder 62 is used for conveying the tray into and out of the roller bed line body during lifting, supporting and positioning the tray onto the sliding tables of the middle layer and bottom layer servo module mechanisms during descending, so that the tray is separated from the line body, and the measurement accuracy is ensured.

In one embodiment, the apparatus further comprises a suspension arm disposed beside the indexing base 20 for placing the workpiece to be tested on the indexing base 20.

In this embodiment, it is also particularly emphasized that the off-shell shafting measuring device is a semi-automatic device, the workpiece to be measured and the measurement auxiliary tool 70 are manually placed on the connection body by the suspension arm, and the flow-in device starts automatic measurement.

In one embodiment, the apparatus further includes a control cabinet 50 and a display, the control cabinet 50 is disposed beside the machine platform 10, the control cabinet 50 is electrically connected to the position changing base, the pressing mechanism 40 and the electric control component on the measuring mechanism 30, an extending frame extends outwards from one side of the machine platform 10, the display is mounted at the end of the extending frame, and the display is electrically connected to the control cabinet 50.

In this embodiment, the device further includes an alarm device installed on the upper portion of the machine 10, and the alarm device is electrically connected to the control cabinet 50, and can assist in determining the working state of the equipment and primarily determining the fault condition, etc. through sound and alarm status lights.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. An off-shell shafting measuring device is suitable for measuring the height of a gearbox shafting and is characterized by comprising a machine table, a shifting base, a pressing mechanism, a measuring mechanism and a measuring auxiliary tool;

the machine table is hollow;

the pressing mechanism is arranged at the top of the machine table and is in sliding connection with the pressing mechanism, and the pressing mechanism can move up and down in the vertical direction;

the measuring mechanism is arranged on the pressing mechanism, and a displacement sensor is arranged at the bottom of the measuring mechanism;

the shifting base is arranged at the lower part of the machine table, is a three-axis driving mechanism and is used for adapting to gearbox shafting with various specifications, and the shifting base is used for placing the gearbox shafting;

the auxiliary measurement tool is hollow inside and open at the bottom, a plurality of floating sleeves capable of moving up and down within a preset height range are mounted on the auxiliary measurement tool, the floating sleeves are respectively matched with shafts of the gearbox, and the top surfaces of the floating sleeves jointly form a shaft height measuring surface.

2. The off-shell shafting measuring equipment is characterized in that a spring structure is fixedly installed in one of the floating sleeves, a positioning tip is arranged at the lower end of the spring structure in a downward mode, and the tip end of the positioning tip can extend into a rotating shaft of the gearbox.

3. The off-shell shafting measuring equipment is characterized in that a rotating mechanism is arranged at the lower part of the deflection base and comprises a rotating motor and a rotating shaft;

the rotating motor is arranged below the deflection base and is in transmission connection with the rotating shaft;

the rotating shaft penetrates through the deflection base and is suitable for being in transmission connection with a gear shaft of a workpiece to be measured.

4. The off-shell shafting measuring equipment is characterized in that the pressing mechanism comprises a lifting sliding table and a measuring sliding table;

the lifting sliding table is arranged on the machine table and is in sliding connection with the machine table through a four-guide-column mechanism driven by a servo lead screw in the vertical direction;

the measurement sliding table is installed on the lifting sliding table and located below the lifting sliding table, and the measurement sliding table and the lifting sliding table are driven to move relatively through a longitudinally output locking cylinder.

5. The off-shell shafting measuring equipment is characterized in that the measuring mechanism further comprises a servo lead screw, a pressure sensor, a balance cylinder and a support frame;

the support frame is fixedly arranged in the middle of the measuring sliding table;

the servo lead screw is vertically arranged at the top of the supporting frame;

the pressure sensor is arranged in the middle of the supporting frame, and the balance cylinder is arranged beside the pressure sensor and used for balancing gravity;

the displacement sensor is arranged at the bottom of the support frame.

6. The device according to claim 1, wherein the deflection base is a vertically arranged three-layer stacked structure, the middle layer structure and the bottom layer structure move in two directions perpendicular to each other in a horizontal plane through a servo module, the top layer is a roller line body for conveying a workpiece to be measured, and the lifting cylinder drives the top layer structure to lift.

7. The off-shell shafting measuring equipment according to claim 6, wherein a tray is placed on the top layer structure, a follow tool is arranged on the tray, and the workpiece to be measured is placed on the follow tool to position the follow tool.

8. The off-shell shafting measurement apparatus of claim 1, further comprising a suspension arm;

the suspension arm is arranged beside the deflection base and used for placing a workpiece to be measured on the deflection base.

9. The off-shell shafting measuring equipment as claimed in claim 1, wherein a grating and a sensor matched with the grating are arranged on a side beam on one side of the machine platform.

10. The off-shell shafting measuring equipment according to any one of claims 1 to 9, further comprising a control cabinet and a display;

the control cabinet is arranged beside the machine table and is electrically connected with the deflection base, the pressing mechanism and the electric control assembly on the measuring mechanism;

one side of the machine table extends outwards to form an extension frame, the display is installed at the tail end of the extension frame, and the display is electrically connected with the control cabinet.

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