CN217358910U - Main shaft rigidity detection device - Google Patents

Abstract

The utility model discloses a main shaft rigidity detection device, including frame, fixed subassembly, first rigidity detection subassembly and second rigidity detection subassembly, the frame is equipped with the detection platform, and fixed subassembly is located the detection platform and is used for fixed main shaft, and first rigidity detection subassembly is located the fixed subassembly along the axial one end of main shaft for detect the axial rigidity of main shaft, and it includes first application of force spare and first regulating part, and first regulating part can adjust the size and the speed that first application of force spare applyed pressure to the main shaft; the second rigidity detection assembly is located on one side, in the radial direction, of the fixing assembly along the main shaft and used for detecting the radial rigidity of the main shaft and comprises a second force application part and a second adjusting part, the second adjusting part can adjust the pressure and the speed of the second force application part on the main shaft, and the main shaft rigidity detection device can simulate the stress condition of the main shaft in the machining process, so that rigidity performance data of the main shaft can be accurately measured, and the main shaft meeting the rigidity requirement can be conveniently selected.

Description

Main shaft rigidity detection device

Technical Field

The utility model relates to a rigidity detects technical field, in particular to main shaft rigidity detection device.

Background

The rigidity of the main shaft affects the precision of processing parts, so in order to ensure the processing precision, the main shaft meeting the rigidity requirement is required to be used. At present, the judgment of the rigidity performance of the main shaft only depends on the basic data detected before the factory of a manufacturer, but lacks the rigidity data of the main shaft for clamping a cutter and rapidly cutting stress in CNC machining (computer numerical control precision machining), so that the basic data detected before the factory of the manufacturer has incompleteness and cannot judge whether the rigidity of the main shaft meets the machining requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a main shaft rigidity detection device can simulate the atress condition of main shaft in the CNC course of working to can be comparatively accurate measure the rigidity performance data of main shaft, thereby can select the main shaft that accords with the processing requirement.

According to the utility model discloses a main shaft rigidity detection device, include:

a frame provided with a detection table;

the fixing assembly is arranged on the detection table and used for fixing the main shaft;

the first rigidity detection assembly is slidably mounted on the detection table and is positioned at one end of the fixing assembly along the axial direction of the main shaft, the first rigidity detection assembly comprises a first force application piece and a first adjusting piece, the first adjusting piece can adjust the magnitude and the speed of pressure applied to the main shaft by the first force application piece, and the first rigidity detection assembly is used for detecting the axial rigidity of the main shaft;

the second rigidity detection assembly is slidably mounted on the detection table and located on one side of the fixing assembly in the radial direction of the main shaft, the second rigidity detection assembly comprises a second force application part and a second adjusting part, the second adjusting part can adjust the pressure and the speed of the second force application part on the main shaft, and the second rigidity detection assembly is used for detecting the radial rigidity of the main shaft;

the first rigidity detection assembly can slide along the radial direction of the main shaft so as to adjust the force application position of the main shaft along the axial direction; the second rigidity detection assembly can slide along the axial direction of the main shaft so as to adjust the force application position of the main shaft along the radial direction.

According to the utility model discloses rigidity main shaft rigidity detection device has following beneficial effect at least: the first rigidity detection assembly is slidably mounted on the detection platform and located at one end of the fixing assembly in the axial direction of the main shaft, the second rigidity detection assembly is slidably mounted on the detection platform and located on one side of the fixing assembly in the radial direction of the main shaft, the first rigidity detection assembly can slide in the radial direction of the main shaft to adjust the force application position to the main shaft, and the second rigidity detection assembly can slide in the axial direction of the main shaft to adjust the force application position to the main shaft in the radial direction. Meanwhile, when the axial rigidity is measured, the first adjusting piece can adjust the magnitude and the speed of pressure applied to the main shaft by the first force applying piece, and when the radial rigidity is measured, the second adjusting piece can adjust the magnitude and the speed of pressure applied to the main shaft by the second force applying piece.

According to some embodiments of the present invention, the first force applying member is provided as a first cylinder, and the first adjustment is provided as a first adjusting valve capable of adjusting the magnitude and speed of the pressure applied by the first cylinder; and/or the second force application part is a second air cylinder, the second adjusting part is a second adjusting valve, and the second adjusting valve is connected to the second air cylinder and can adjust the pressure applied to the main shaft by the second air cylinder.

According to the utility model discloses a few embodiments, the frame still is equipped with first base, first base install in examine test table, first rigidity determine module liftable install in first base.

According to some embodiments of the utility model, the frame still is equipped with the second base, second base slidable mounting in examine test table, second rigidity detection component install in the second base.

According to some embodiments of the utility model, it is equipped with the guide rail to examine test table, the guide rail is followed the axial of main shaft is arranged, second base card slidable mounting in the guide rail.

According to some embodiments of the utility model, the guide rail is equipped with a plurality of leading wheels along length direction's both sides, the leading wheel can support the second base, so that the second base can pass through the leading wheel slides.

According to the utility model discloses a some embodiments, main shaft rigidity detection device still is equipped with the retaining member, the retaining member install in the second base, and can with the second base is fixed in detect the platform.

According to the utility model discloses a some embodiments, fixed subassembly includes fixing base and briquetting, the fixing base install in examine test table, briquetting demountable installation in the fixing base, the briquetting be used for with the main shaft is fixed in the fixing base.

According to the utility model discloses a some embodiments, the fixing base orientation the one end of briquetting is equipped with first draw-in groove, the orientation of briquetting the one end of fixing base is equipped with the second draw-in groove.

According to the utility model discloses a some embodiments, the briquetting deviates from the one end of second draw-in groove is equipped with the third draw-in groove, the second draw-in groove with the third draw-in groove is all established to V type groove, just third draw-in groove open-ended width is less than second draw-in groove open-ended width.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a spindle rigidity detection apparatus according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of a spindle stiffness detecting apparatus according to another embodiment of the present invention;

fig. 3 is a left side view of a spindle rigidity detecting apparatus according to another embodiment of the present invention;

FIG. 4 is an enlarged view of A shown in FIG. 3;

fig. 5 is a schematic bottom structure view of a spindle rigidity detecting apparatus according to another embodiment of the present invention;

fig. 6 is a schematic structural diagram of a second rigidity detecting assembly according to another embodiment of the present invention;

fig. 7 is a schematic partial structural view of a spindle stiffness detecting apparatus according to another embodiment of the present invention;

fig. 8 is a schematic structural diagram of a first stiffness detecting assembly according to another embodiment of the present invention;

fig. 9 is an exploded view of a securing assembly according to another embodiment of the present invention.

Reference numerals are as follows:

the device comprises a frame 100, a detection table 110, an avoidance groove 111, a guide rail 112, a guide wheel 113, a first base 120, a guide rod 121, an adjusting hand wheel 122, a limiting rod 123, a locking rod 124, a second base 130, a locking piece 131, a locking hole 132, a supporting piece 140 and a countersunk head screw 150;

the fixing device comprises a fixing component 200, a fixing seat 210, a first clamping groove 211, a pressing block 220, a second clamping groove 221, a third clamping groove 222 and a fixing piece 230;

a first stiffness detecting assembly 300, a first pressure sensor 310, a first cylinder 320, a first displacement sensor 330, a mount 331;

a second stiffness detecting assembly 400, a second pressure sensor 410, a second cylinder 420, a second displacement sensor 430;

a control panel 500, a pressure gauge 510 and a control key 520;

a main shaft 600 and a mandrel 610.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the terms such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the terms in the present invention by combining the specific contents of the technical solution.

The embodiments of the present application will be further explained with reference to the drawings.

Referring to fig. 1 to 9, in some embodiments of the present invention, the spindle rigidity detecting device includes a frame 100, a fixing component 200, a first rigidity detecting component 300 and a second rigidity detecting component 400, the frame 100 is provided with a detecting platform 110, the fixing component 200 is disposed on the detecting platform 110, the fixing component 200 is used for fixing the spindle 600, the first rigidity detecting component 300 is used for detecting the axial rigidity of the spindle 600, the first rigidity detecting component 300 is slidably mounted on the detecting platform 110 and is located at one end of the fixing component 200 along the axial direction of the spindle 600; the second stiffness detecting assembly 400 is used for detecting the radial stiffness of the spindle 600, and the second stiffness detecting assembly 400 is slidably mounted on the detecting table 110 and located on one side of the fixing assembly 200 along the radial direction of the spindle 600.

The first rigidity detection assembly comprises a first force application member and a first adjusting member, and the first adjusting member can adjust the magnitude and speed of pressure applied to the spindle by the first force application member; the second rigidity detection assembly comprises a second force application piece and a second adjusting piece, and the second adjusting piece can adjust the magnitude and the speed of the pressure applied to the spindle by the second force application piece. The first force application member can be set as a first cylinder 320, the first adjustment member is set as a first adjustment valve, the first adjustment valve includes a first speed regulation valve and a first pressure regulating valve, the first speed regulation valve and the first pressure regulating valve are respectively connected to the first cylinder 320, the first speed regulation valve is used for regulating the speed of the first cylinder 320, and the first pressure regulating valve is used for regulating the pressure of the first cylinder 320; the second force applying member may be a second cylinder 420, the second adjusting member is configured as a second adjusting valve, the second adjusting valve includes a second speed regulating valve and a second pressure regulating valve, the second speed regulating valve and the second pressure regulating valve are respectively connected to the second cylinder 420, the second speed regulating valve is used for adjusting the speed of the second cylinder 420, and the second pressure regulating valve is used for adjusting the pressure of the second cylinder 420. The main shaft rigidity detection device that this application provided can adjust the size and the speed of applying pressure to the main shaft when measuring the axial or radial rigidity of main shaft to can be comparatively accurate simulate out the quick atress condition of main shaft in the CNC course of working, simultaneously, adopt first cylinder 320 and second cylinder 420 application of force more even, make measured rigidity data comparatively accurate, so that confirm whether the main shaft satisfies the requirement of actually processing man-hour.

It should be noted that, the spindle 600 is provided with the mandrel 610, and by applying force to the mandrel 610, the stress condition of the spindle 600 during actual operation and machining after installing a tool is simulated, and after the fixing assembly 200 fixes the spindle 600, the first stiffness detecting assembly 300 can slide along the radial direction of the spindle 600 to adjust the force application position to the end face of the mandrel 610 along the axial direction, so that the actual stress condition of the spindle 600 during operation is simulated, and the accuracy of the measured data is improved; the second stiffness detecting assembly 400 can slide along the axial direction of the main shaft 600 to adjust the force application position of the mandrel 610 along the radial curved surface, so that the actual stress condition of the main shaft 600 during working can be simulated, and the accuracy of the measured data can be improved.

Referring to fig. 7 and 8, in some embodiments of the present invention, the frame 100 is provided with a first base 120, the first base 120 is mounted on the inspection table 110, and the first rigidity detecting assembly 300 is slidably mounted on the first base 120. The first stiffness detecting assembly 300 further includes a first pressure sensor 310, the first pressure sensor 310 is connected to an output end of a first cylinder 320, the first base 120 is provided with a guide rod 121, the guide rod 121 is arranged along a radial direction of the main shaft 600, and the first cylinder 320 is slidably mounted to the guide rod 121. The first cylinder 320 can drive the first pressure sensor 310 to apply pressure to the mandrel 610, the first cylinder 320 can slide along the length direction of the guide rod 121, that is, the first cylinder 320 can move along the radial direction of the main shaft 600, and the mandrel 610 is installed at one end of the main shaft 600, so that the first cylinder 320 can drive the first pressure sensor 310 to move along the radial direction of the mandrel 610, thereby adjusting the position of the first pressure sensor 310 applying pressure to the mandrel 610. For example, the first pressure sensor 310 is adjusted to apply a force to the mandrel 610 at a position close to the axial center of the mandrel 610, and the measured axial stiffness is more accurate.

Referring to fig. 8, a screw thread is provided on the guide rod 121, the first cylinder 320 is fixedly connected with a sliding block, a screw hole is provided on the sliding block, and the guide rod 121 passes through the screw hole on the sliding block, so that the first cylinder 320 is screwed to the guide rod 121 through the sliding block. One end of the guide rod 121 is provided with an adjusting handwheel 122, and the other end is rotatably connected to the first base 120, so that the first cylinder 320 can be driven to move along the radial direction of the core rod 610 by rotating the adjusting handwheel 122, for example, the guide rod 121 can be vertically arranged, and the first cylinder 320 can be driven to move in the vertical direction. It should be noted that, a bearing is disposed on the first base 120, and one end of the guide rod 121, which is far away from the adjusting handwheel 122, is connected in the bearing hole, so that the guide rod 121 can be rotatably connected to the first base 120, and the friction force applied when the guide rod 121 rotates can be reduced, so that the adjusting handwheel 122 can be rotated.

It should be further noted that the first base 120 is further provided with a limiting rod 123, the limiting rod 123 and the guide rod 121 are arranged in the same direction, a sliding block fixedly connected with the first cylinder 320 is provided with a through hole, and the limiting rod 123 penetrates through the through hole, so that the first cylinder 320 can slide along the limiting rod 123. By providing the stopper rod 123, the stability of the first cylinder 320 can be improved.

Referring to fig. 7, the first stiffness detecting unit 300 further includes a first displacement sensor 330, the first displacement sensor 330 is fixedly mounted on the spindle 600 by a mounting seat 331, and a detecting rod of the first displacement sensor 330 abuts on an end surface of the mandrel 610. When the first air cylinder 320 drives the first pressure sensor 310 to apply pressure to the mandrel 610, the first displacement sensor 330 can detect the displacement of the mandrel 610, and the first pressure sensor 310 can detect the magnitude of the pressure applied to the mandrel 610. The axial stiffness of the spindle 600 can be calculated from the stiffness calculation formula K ═ F/d, where K represents stiffness, F represents force (N), and d represents displacement (μm). It should be noted that multiple sets of data can be measured and averaged to improve the accuracy of the measured data.

It should be noted that the mounting seat 331 may be a magnetic attraction device, such as an electromagnet, and when the first displacement sensor 330 needs to be mounted, the electromagnet is powered on to generate magnetism, so as to be attracted to the mandrel 610, and when the first displacement sensor 330 needs to be dismounted, the power is powered off to lose the magnetism. By using a magnetic attraction device, the first displacement sensor 330 is easy to mount and dismount.

Referring to fig. 2 to 6, in some embodiments of the present invention, the frame 100 is further provided with a second base 130, the second base 130 is slidably mounted on the inspection table 110, the second rigidity detecting assembly 400 is fixedly mounted on the second base 130, and the second base 130 can drive the second rigidity detecting assembly 400 to slide along the axial direction of the mandrel 610. The second stiffness detection assembly 400 includes a second pressure sensor 410, the second cylinder 420 is fixedly mounted on the second base 130 through fasteners such as studs, the second pressure sensor 410 is connected to an output end of the second cylinder 420, and the second cylinder 420 can drive the second pressure sensor 410 to apply pressure to a side edge of the mandrel 610. The second base 130 can drive the second cylinder 420 to move along the axial direction of the mandrel 610, so that the force application position of the second pressure sensor 410 on the mandrel 610 can be adjusted to simulate the stress condition when the spindle 600 works.

The inspection table 110 is provided with a guide rail 112, the guide rail 112 is arranged along the axial direction of the main shaft 600, and the second base 130 is slidably mounted on the guide rail 112. Referring to fig. 3 to 5, the guide rail 112 is formed by two symmetrical L-shaped rods, the length direction of each L-shaped rod is consistent with the axial direction of the main shaft 600, the second base 130 is plate-shaped, two ends of the plate-shaped second base 130 can be arranged in the guide rail 112, and the guide rail 112 can support and limit the second base 130, so that the second base 130 can slide along the guide rail 112. The second base 130 is disposed below the detection table 110, and the detection table 110 is further provided with an avoiding groove 111, so that the second pressure sensor 410 can be connected to the output end of the second cylinder 420 through a connecting rod. By providing the second base 130 below the inspection stage 110, the installation space can be saved.

The second base 130 is further connected with a locking member 131, and when the second base 130 is moved to a proper position, the second base 130 is fixed by the locking member 131. Wherein, retaining member 131 includes the screw rod, the screw rod is connected in the locking hole 132 on second base 130, the other end of screw rod passes and detects platform 110, and the cover is equipped with the nut, it is equipped with the gasket still to overlap on the screw rod, the gasket is located the nut and detects between the platform 110, through rotating the nut, nut extrusion gasket, make the gasket butt detect the up end of platform 110, continue to rotate the nut, can drive the screw rod rebound, thereby drive second base 130 rebound, make the up end butt of second base 130 in the lower terminal surface that detects platform 110, thereby can fix second base 130. It should be noted that the nut sleeve is provided with a handle to facilitate rotation of the nut. It should be noted that the inner wall of the locking hole 132 is provided with a thread, and the screw can be screwed into the locking hole 132.

It should be further noted that the second cylinder 420 is mounted on the second base 130 through the countersunk screw 150, a countersunk hole is formed in the upper end surface of the second base 130, that is, the end away from the second cylinder 420, and the head of the countersunk screw 150 can be located in the countersunk hole, so that the upper end surface of the second base 130 is kept flat.

Referring to fig. 6, it should be noted that, a plurality of locking members 131 are disposed on the second base 130, and a plurality of locking holes 132 are disposed, for example, six locking holes 132 are disposed and uniformly distributed at two ends of the second base 130, each locking hole 132 is correspondingly connected with a locking member 131, and the inspection table 110 is further provided with two avoiding grooves 111 for avoiding the locking members 131. It should be noted that when the main shaft is smaller 600 and the length of the installed mandrel 610 is shorter, the two locking members 131 close to the fixing seat 210 can be removed to avoid the fixing seat 210.

Referring to fig. 2 and 5, in some embodiments of the present invention, the first base 120 can slide on the inspection table 11 along the axial direction of the spindle 600. The first base 120 is also connected with a locker 131, and is connected to a locking lever 124 through the locker 131, and the locking lever 124 is located below the inspection table 110. The first base 120 can be fixed on the inspection table 110 by the cooperation of the locking member 131 and the locking lever 124, and the locking lever 124 is driven by the locking member 131 to abut against the lower end surface of the inspection table 110, similar to the above-mentioned fixing of the second base 130, thereby fixing the first base 120. When the axial stiffness is detected, the stability of the first cylinder 320 when applying a force can be increased by moving the first base 120 so that the first cylinder 320 can maintain a suitable distance from the end surface of the mandrel 610, for example, a short distance.

The second stiffness detecting assembly 400 further includes a second displacement sensor 430, the second displacement sensor 430 is fixed to the spindle 600 by an electromagnet, a detection end of the second displacement sensor 430 abuts against a sidewall of the mandrel 610, when the second pressure sensor 410 applies pressure to the mandrel 610, the second pressure sensor 410 is used for measuring the magnitude of the applied pressure, and the second displacement sensor 430 is used for measuring the displacement. The radial stiffness of the spindle 600 can be calculated from the calculation formula K ═ F/d for stiffness, where K denotes stiffness, F denotes force (N), and d denotes displacement (μm). It should be noted that multiple sets of data may be measured and averaged to improve the accuracy of the measured data. Further, the position of the second pressure sensor 410 at which the second pressure sensor applies pressure to the mandrel 610 and the measurement point at which the second displacement sensor 430 abuts against the mandrel 610 are symmetrical with respect to the axis of the spindle 600, and the accuracy of the measured data can be improved.

It should be noted that different lengths of the mandrel 610 may be selected for the axial and radial stiffness measurements to facilitate the measurements. For example, a shorter mandrel 610 may be used to facilitate installation of the first displacement sensor 330 when measuring axial stiffness, and a longer mandrel 610 may be used to facilitate measurement of multiple sets of data when measuring radial stiffness.

Referring to fig. 9, in some embodiments of the present invention, the fixing assembly 200 includes a fixing base 210 and a pressing block 220, the fixing base 210 is fixedly installed on the inspection table 110, the pressing block 220 is detachably installed on the fixing base 210, and the pressing block 220 can fix the spindle 600 on the fixing base 210. One end of the fixing base 210 facing the pressing block 220 is provided with a first V-shaped locking groove 211, one end of the pressing block 220 facing the fixing base 210 is provided with a second V-shaped locking groove 221, and the pressing block 220 is connected with the fixing base 210 through a fixing member 230. The first locking groove 211 and the second locking groove 221 are arranged to facilitate installation of the main shaft 600 with different diameters. It should be noted that, the pressing block 220 is provided with a third slot 222 at an end away from the second slot 221, the third slot 222 is also a V-shaped slot, and the width of the opening of the third slot 222 is smaller than the width of the opening of the second slot 221, that is, the distance between the two ends of the opening of the third slot 222 is smaller than the distance between the two ends of the opening of the second slot 221, so that the depth of the third slot 222 is smaller than the depth of the second slot 221, or the included angle of the opening of the third slot 222 is smaller than the included angle of the opening of the second slot 221, when the diameter of the spindle 600 is smaller and cannot be fixed through the second slot 221, the pressing block 220 is detached from the fixing seat 210, and the third slot 222 is installed toward the fixing seat 210, so that the spindle 600 with a smaller diameter can be fixed on the fixing seat 210. By providing the second locking groove 221 and the third locking groove 222, the spindle 600 having different diameters can be accommodated.

The fixing member 230 may be configured as a bolt, the head of the bolt may be rotatably installed on the fixing base 210, the fixing base 210 is provided with a rotating rod, the rotating rod is sleeved with the head of the bolt and can rotate around the rotating rod, the pressing block 220 is provided with a through hole, the bolt passes through the through hole and is screwed on the bolt by a nut, and the pressing block 220 is fixed. The bolt is sleeved with the gasket, the gasket is located between the nut and the pressing block 220 through hole, and when the nut is screwed down, the gasket can improve the stability of the nut and the bolt.

It should be noted that the through hole on the pressing block 220 can also be set to be a U-shaped groove, the bolt can be placed into the U-shaped groove from the opening of the U-shaped groove by rotating the bolt, then the nut is screwed up, and when the nut is disassembled, the bolt is rotated out from the opening of the U-shaped groove, so that the convenience of installation and disassembly of the pressing block 220 is improved.

In some embodiments of the present invention, the rack 100 is further provided with a control panel 500, a pressure gauge 510 and a control key 520, the first pressure sensor 310, the second pressure sensor 410, the first displacement sensor 330 and the second displacement sensor 430 are respectively connected to the control panel 500, and these sensors can transmit the measured data to the control panel 500, so as to visually check the detected value. The two pressure gauges 510 are respectively connected to the first cylinder 320 and the second cylinder 420, and the pressure gauges 510 can detect the pressure of the first cylinder 320 and the pressure of the second cylinder 420. The number of the control keys 520 is at least four, two of the control keys 520 are respectively connected with the first pressure regulating valve and the first speed regulating valve of the first cylinder 320, two of the control keys are respectively connected with the second pressure regulating valve and the second speed regulating valve of the second cylinder 420, so that the first pressure regulating valve and the first speed regulating valve connected to the first cylinder 320 can be respectively controlled by the plurality of control keys 520, thereby regulating the magnitude and the speed of the pressure applied to the mandrel 610 by the first cylinder 320, and the second pressure regulating valve and the second speed regulating valve connected to the second cylinder 420 can be respectively controlled by the plurality of control keys 520, thereby regulating the magnitude and the speed of the pressure applied to the mandrel 610 by the second cylinder 320, thereby simulating the rapid cutting stress condition when the spindle 600 works, and improving the accuracy of the measured data.

In some embodiments of the present invention, the bottom end of the frame 100 is further provided with a support member 140 for supporting the frame 100. The support 140 may be provided with a support column or may be provided as a roller to facilitate movement.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention defined by the appended claims.

Claims (10)

1. A spindle rigidity detection device characterized by comprising:

a frame (100) provided with a detection table (110);

a fixing assembly (200) mounted on the inspection table (110), the fixing assembly (200) being used for fixing the spindle (600);

the first rigidity detection assembly (300) is slidably mounted on the detection table (110) and is located at one end of the fixing assembly (200) along the axial direction of the spindle (600), the first rigidity detection assembly (300) comprises a first force application member and a first adjusting member, the first adjusting member can adjust the magnitude and the speed of pressure applied to the spindle (600) by the first force application member, and the first rigidity detection assembly (300) is used for detecting the axial rigidity of the spindle (600);

the second rigidity detection assembly (400) is slidably mounted on the detection table (110) and is positioned on one side of the fixing assembly (200) along the radial direction of the spindle (600), the second rigidity detection assembly (400) comprises a second force application member and a second adjusting member, the second adjusting member can adjust the pressure and the speed of the second force application member on the spindle (600), and the second rigidity detection assembly (400) is used for detecting the radial rigidity of the spindle (600);

wherein the first force applying member can slide along the radial direction of the main shaft (600) to adjust the force applying position of the main shaft (600); the second force applying piece can slide along the axial direction of the main shaft (600) so as to adjust the force applying position of the main shaft (600).

2. The spindle stiffness detecting device according to claim 1, wherein the first force applying member is a first air cylinder (320), the first adjusting member is a first adjusting valve, and the first adjusting valve is connected to the first air cylinder (320) and is capable of adjusting the magnitude and speed of the pressure applied to the spindle (600) by the first air cylinder (320); and/or the second force application member is a second air cylinder (420), the second adjusting member is a second adjusting valve, and the second adjusting valve is connected to the second air cylinder (420) and can adjust the pressure and speed applied to the main shaft (600) by the second air cylinder (420).

3. The spindle stiffness detecting device according to claim 1, wherein the frame (100) is further provided with a first base (120), the first base (120) is mounted on the detecting table (110), and the first stiffness detecting assembly (300) is slidably mounted on the first base (120).

4. The spindle stiffness detecting device according to claim 1, wherein the frame (100) is further provided with a second base (130), the second base (130) is slidably mounted on the detecting table (110), and the second stiffness detecting assembly (400) is mounted on the second base (130).

5. The spindle stiffness detecting device according to claim 4, wherein the detecting table (110) is provided with a guide rail (112), the guide rail (112) is arranged along an axial direction of the spindle (600), and the second base (130) is slidably mounted on the guide rail (112).

6. The spindle stiffness detecting device according to claim 5, wherein the guide rail (112) is provided with a plurality of guide wheels (113) at both sides in a length direction, and the guide wheels (113) can support the second base (130) so that the second base (130) can slide through the guide wheels (113).

7. The spindle stiffness detecting device according to claim 4, wherein a locking member (131) is further provided, and the locking member (131) is mounted to the second base (130) and can fix the second base (130) to the detecting table (110).

8. The spindle rigidity detection device according to claim 1, wherein the fixing assembly (200) comprises a fixing seat (210) and a pressing block (220), the fixing seat (210) is installed on the detection table (110), the pressing block (220) is detachably installed on the fixing seat (210), and the pressing block (220) is used for fixing the spindle (600) on the fixing seat (210).

9. The spindle stiffness detecting device according to claim 8, wherein a first locking groove (211) is formed in one end, facing the pressing block (220), of the fixed seat (210), and a second locking groove (221) is formed in one end, facing the fixed seat (210), of the pressing block (220).

10. The spindle stiffness detecting device according to claim 9, wherein a third locking groove (222) is formed in one end, away from the second locking groove (221), of the pressing block (220), the second locking groove (221) and the third locking groove (222) are both V-shaped grooves, and the opening width of the third locking groove (222) is smaller than the opening width of the second locking groove (221).

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