CN112050761A

CN112050761A - Multipurpose measuring table

Info

Publication number: CN112050761A
Application number: CN202010450908.8A
Authority: CN
Inventors: 陈庭亿
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-06
Filing date: 2020-05-25
Publication date: 2020-12-08
Anticipated expiration: 2040-05-25
Also published as: TW202045300A; CN112050761B; TWI711507B

Abstract

A multipurpose measuring table is provided with a rotary base, a shaft hole is arranged in the rotary base, a mandrel is arranged in the shaft hole in a penetrating mode, the mandrel is provided with a top end extending upwards and a bottom end extending downwards, an object to be measured can be placed at the top end, a first bevel gear is arranged at the bottom end, a hand crank mechanism is arranged on one side of the rotary base and provided with a rotating shaft, a hand wheel is arranged at one end of the rotating shaft, a second bevel gear meshed with the first bevel gear is arranged at the other end of the rotating shaft, and a positioning piece with a screw rod portion is arranged in a screw hole in the rotary base through the screw rod portion of the positioning piece, so that the positioning piece can extend into the shaft hole and abut against the mandrel. The multi-purpose measuring table provided by the invention has the advantages that the multi-purpose measuring table can be fixed and adjusted according to the types of different objects to be measured through the design of the replaceable mandrel and the additional assembly parts, so that the measuring effect is facilitated.

Description

Multipurpose measuring table

Technical Field

The present invention relates to a measuring table structure, and more particularly, to a multi-purpose measuring table for measuring a plurality of types of tool holders or workpieces.

Background

The conventional measuring table is provided with a tool holder on which a tool to be measured is arranged, and the measuring table mechanism is adjusted to a proper position in a longitudinal and transverse manner according to the position of the tool holder, and then the tool holder is rotated to measure the data of the tool; however, although such a measuring table can measure data such as the outer diameter of the tool holder, the kind of tool holder that can be fixed by the tool holder is limited, and it is impossible to measure other workpieces, such as: other objects such as corner posts, spheres or round bars are not flexible in use; in addition, in the manufacturing process of the measuring table, the design of directly fixing the measuring sliding table mechanism and the tool holder on a base is adopted, and the base is usually cast, so that the corresponding position deviation between the measuring sliding table mechanism and the tool holder is caused by factors such as temperature or internal stress, and the accuracy of measured data is influenced.

However, the tool main seat formed by such a combination method is prone to inaccurate axis perpendicularity due to assembly errors between the tool sleeve fixing cylinder and the tool main seat, and does not have a function of additionally positioning the tool main seat and the tool, so that the tool main seat or the tool cannot be reliably prevented from rotating in an actual measuring process, and the measuring is also inaccurate.

As shown in fig. 15, when the user wants to measure the tool bar 101, the user needs to use a specific tool bar fixture 100 to be set on the measuring table in a yaw manner, and then measure the tool bar by using the meter, and in this way, the tool bar 101 is in a yaw manner, and the tool bar 101 often sags at the end of the tool bar due to the overlong length of the tool bar, so that the data measured by the meter is inaccurate.

Therefore, how to solve the above problems is the primary subject to be solved by the present invention.

Disclosure of Invention

An objective of the present invention is to provide a multi-purpose measuring table, which can be fixed and adjusted according to the types of different objects to be measured by the design of replaceable and additional assembly components of a spindle, so as to facilitate the measuring effect.

The second objective of the present invention is to provide a multi-purpose measuring table, which has the function of being able to be arbitrarily assembled on the measuring table or machine.

It is a further object of the present invention to provide a multi-purpose measuring table having a positioning mechanism for additionally positioning a spindle and a workpiece to be measured, so as to effectively prevent the spindle and the workpiece to be measured from rotating during measurement, and further ensure the measurement accuracy.

To achieve the above object, the present invention provides a multi-purpose measuring table, comprising:

the upper end of the rotating seat is provided with a shaft hole which extends downwards, the shaft hole is provided with an upper section and a lower section, the aperture of the upper section is larger than that of the lower section, a step surface is formed between the upper section and the lower section, and at least one bearing is arranged at the upper section of the shaft hole;

a mandrel, which is arranged in the shaft hole in a penetrating way and is provided with a top end extending upwards and a bottom end extending downwards, wherein the top end can be used for placing an object to be detected, and the bottom end is provided with a first bevel gear;

the hand crank mechanism is arranged on one side of the rotating seat and comprises a rotating shaft, one end of the rotating shaft is provided with a hand wheel, and the other end of the rotating shaft is provided with a second bevel gear meshed with the first bevel gear;

a positioning member having a screw portion, and the positioning member is assembled in a screw hole of the rotary seat with the screw portion thereof relatively, so that the positioning member can extend into the shaft hole and abut against the mandrel.

Preferably, the upper section of the shaft hole is sequentially stacked from top to bottom with a first bearing, an adjusting ring and a second bearing for the spindle to correspondingly penetrate through, and the second bearing located at the lowest part is relatively abutted against the step surface.

Preferably, the upper end of the rotating base is connected to a hollow annular fixing ring, and the fixing ring extends downward toward the shaft hole to form a pressing part capable of pressing against the first bearing relatively.

Preferably, the rotary seat has a lower end, and the lower end is provided with at least one caulking groove, the upper surface of the base has high straight precision, and the base is defined with a first axis and a second axis perpendicular to the first axis, the base is provided with a plurality of embedded blocks along the first axis, so that the rotary seat can be relatively assembled on the base by matching the caulking groove with the embedded blocks.

Preferably, the base is further provided with a sliding base, the bottom surface of the sliding base is provided with at least one embedded groove, the embedded groove and the embedded blocks are clamped with each other to be located on the base, the sliding base is provided with a first sliding rail arranged along the first axis direction, the first sliding rail is provided with a first sliding plate, one side of the sliding base is provided with a second rocking handle mechanism, the second rocking handle mechanism is provided with a first screw rod to drive the first sliding plate to move along the first sliding rail, a lifting seat is arranged on the first sliding plate, the lifting seat is provided with a second sliding rail arranged along the second axis direction, the second sliding rail is provided with a second sliding plate, one side of the lifting seat is provided with a third hand crank mechanism, and the third hand crank mechanism is provided with a second screw rod to drive the second sliding plate to move along the second sliding rail.

Preferably, the first slide rail and the second slide rail are respectively h-shaped slide rails, and a containing chamber is respectively arranged on the first slide rail and the second slide rail for the arrangement of the first screw and the second screw; the shapes of the first sliding plate and the second sliding plate respectively correspond to the shapes of the first sliding rail and the second sliding rail.

Preferably, the base is made of granite, and a plurality of mounting holes are formed around the insert on the base, and a screw head is fixedly arranged in each mounting hole respectively, so that the rotating base and the sliding base can be positioned by a screw and the screw head respectively.

Preferably, a collar is sleeved on the mandrel above the first bevel gear, and the collar is relatively positioned in the lower section of the shaft hole and has a distance with the inner wall surface of the shaft hole.

Preferably, the opening position of the screw hole is opposite to the lantern ring on the mandrel, so that the positioning piece can extend into the shaft hole and is relatively abutted against the outer peripheral surface of the lantern ring to push and position the mandrel.

Preferably, the top end of the mandrel is provided with at least two locking holes, each locking hole is respectively used for assembling one clamping block, the two clamping blocks respectively extend outwards to form a convex part, the two clamping blocks are respectively provided with a penetrating part, two screw connecting pieces penetrate through the penetrating parts to be fixed with the locking holes, and the convex parts of the two clamping blocks can be used for clamping an object to be detected on the mandrel.

The above objects and advantages of the present invention will be readily understood by the following detailed description of the selected embodiments and the accompanying drawings.

Drawings

Fig. 1 is a schematic plan view of a first embodiment of the present invention.

Fig. 2 is a schematic top view of the first embodiment of the present invention.

Fig. 3 is a schematic diagram of a first embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a base according to a first embodiment of the invention.

Fig. 5 is a schematic structural view of the lifting base according to the first embodiment of the present invention.

FIG. 6 is a schematic view of a first embodiment of the present invention showing an assembled state of the clamping block.

Fig. 7 is a schematic view of a first embodiment of the present invention, showing a BT-type tool holder.

Fig. 8 is a schematic view of the first embodiment of the present invention, showing the configuration of the NT-type tool holder.

Fig. 9 is a schematic view of a first embodiment of the present invention, showing a state of the tool bar.

Fig. 10 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 11 is a schematic structural diagram of a third embodiment of the present invention.

Fig. 12 is a schematic structural diagram of a fourth embodiment of the present invention.

Fig. 13 is a schematic view of a fifth embodiment of the present invention, showing a state of placing an iron pipe.

FIG. 14 is a schematic view of a fifth embodiment of the present invention, showing a hexagonal prism in use.

FIG. 15 is a schematic view of a conventional tool holder.

Detailed Description

As shown in fig. 1 to 6, a first embodiment of a multi-purpose measuring table according to the present invention is mainly composed of a rotating base 11, a spindle 21, a hand-cranking bar mechanism 31 and a positioning member 41, wherein:

the rotary seat 11 is assembled to a base 51, the rotary seat 11 is a hollow cylinder vertically disposed and has an upward upper end 12 and a downward lower end 13, the upper end 12 is provided with a downward shaft hole 14, the shaft hole 14 has an upper section 141 and a lower section 142, and the diameter of the upper section 141 is larger than that of the lower section 141, so that a step surface 143 is formed between the upper section 141 and the lower section 142, and the upper section 141 of the shaft hole 14 is provided with at least one bearing. In this embodiment, the upper section 141 of the shaft hole 14 is sequentially stacked from top to bottom with a first hollow ring-shaped bearing 151, an adjusting ring 152 and a second bearing 153, the second bearing 153 located at the lowest portion is abutted against the stepped surface 143, a hollow ring-shaped fixing ring 16 is fixed at the upper end 12 of the rotating base 11, and the fixing ring 16 extends downward toward the shaft hole 14 to form a pressing portion 161 capable of pressing against the first bearing 151 relatively, so as to ensure that the first bearing 151, the adjusting ring 152 and the second bearing 153 cannot be separated from the upper section 141 of the shaft hole 14.

The spindle 21 is accommodated in the shaft hole 14 and correspondingly penetrates through the first bearing 151, the adjusting ring 152 and the second bearing 153, the spindle 21 has a top end 22 extending upward and a bottom end 23 extending downward, the top end 22 can be used for placing a workpiece to be measured, the object to be measured can be a common workpiece or a tool holder without limiting the type, and the bottom end 23 of the spindle 21 is connected with a first bevel gear 24. Furthermore, the mandrel 21 is further sleeved with a collar 25 above the first bevel gear 24, the sleeving manner can be a tight fit sleeving manner or a screwing manner, the collar 25 is sleeved and fixed on the mandrel 21, the lower end surface of the collar 25 is supported by the first bevel gear 24, and the upper end surface of the collar 25 is relatively abutted against the second bearing 153, so that the collar 25 can be relatively positioned in the lower section 142 of the shaft hole 14, and a space is formed between the collar 25 and the inner wall surface of the lower section 142 of the shaft hole 14. The mandrel 21 further has at least two locking holes 221 formed on the top end 22 thereof, each locking hole 221 is respectively adapted for assembling a clamping block 26, and each clamping block 26 extends outward to form a protrusion 261, each clamping block 26 is provided with a through-hole 262 having a groove shape, and two screw members 27 are fixed to each locking hole 221 through each through-hole 262, and the protrusion 261 of each clamping block 26 is adapted for clamping an object to be tested (for example, a BT-type tool holder 91 shown in fig. 6) on the mandrel 21.

The hand crank mechanism 31 is configured to be erected on one side of the rotating base 11, the hand crank mechanism 31 includes a rotating shaft 32 penetrating from the outside to the inside of the rotating base 11, a hand wheel 33 is connected to an outward end of the rotating shaft 32, a second bevel gear 34 capable of meshing with the first bevel gear 24 is connected to the other end of the rotating shaft 32, and the rotating shaft 32 can be driven to synchronously drive the spindle 21 to start rotating by rotating the hand wheel 33.

One end of the positioning member 41 is provided with an operating handle 42, the other end extends reversely to form a screw rod portion 43 with a threaded section, and the positioning member 41 is relatively assembled in a screw hole 17 on the rotating base 11 by the screw rod portion 43, the opening position of the screw hole 17 is just opposite to the collar 25 on the mandrel 21, so that a user can extend the positioning member 41 into the shaft hole 14 and relatively abut against the outer peripheral surface of the collar 25 by rotating the operating handle 42, thereby abutting and positioning the mandrel 21, and thereby the mandrel 21 can be surely prevented from rotating in the actual measuring process, so as to ensure the measuring accuracy, and the collar 25 can also be used for preventing the positioning member 41 from directly abutting against the mandrel, so as to cause excessive abrasion of the mandrel 21.

Furthermore, at least one embedded groove 131 and a plurality of through holes 132 are disposed at the lower end 13 of the rotating base 11, so that the rotating base 11 can be relatively assembled on the base 51 by the embedded groove 131 and the through holes 132 in combination with the embedded blocks 52 and the plurality of bolts 53. In the embodiment, the base 51 is made of granite, the upper surface of the base is of high straight precision, the base 1 is defined with a first axis X extending along a horizontal direction and a second axis Z extending perpendicular to the first axis X and facing a vertical direction, the base 51 is provided with a plurality of inserts 52 protruding from the upper surface of the base 51 along the first axis X direction, a plurality of mounting holes 54 are formed around the inserts 52 of the base 51, and each mounting hole 54 is internally provided with a screw head 55 arranged in the mounting hole 54 in an adhering manner, so that the rotary base 11 can be relatively assembled on the base 51 by the inserts 52 and the through holes 132 matching with the inserts 52 and the bolts 53 (as shown in fig. 3).

A sliding base 61 is further disposed on the base 51, the bottom of the sliding base 61 also has at least one embedded groove 62, and the embedded groove 62 can be mutually clamped with the embedded block 52 beside the rotating base 11 to be erected on the base 51, and the sliding base 61 is disposed with a first slide rail 63 disposed along the first axis X direction, the first slide rail 63 is disposed with a first sliding plate 64, and a second handle mechanism 65 is disposed at one side of the sliding base 61, the second handle mechanism 65 has a screw 66 to drive the first sliding plate 64 to move along the first slide rail 63, and a lifting base 71 is disposed on the first sliding plate 64, and the lifting base 71 has a second slide rail 72 vertically disposed along the second axis Z direction, the second slide rail 72 is disposed with a second sliding plate 73, and a third handle mechanism 74 is disposed at one side of the lifting base 71, the third handle mechanism 74 has a screw 75 to drive the second sliding plate 73 to move along the second slide rail 72, and a gauge (not shown) is connected to the second sliding plate 73. Wherein, the base 51 can ensure the accuracy of measurement by the high hardness and uneasy deformation of the granite; in addition, the granite has higher resonance dynamic damping coefficient than that of general metal, so that when performing precise measurement on the base 51, the mechanical resonance will not affect the stability of precise measurement. Preferably, the first slide rail 63 and the second slide rail 72 are respectively h-shaped slide rails, and a containing chamber is respectively formed on the first slide rail 63 and the second slide rail 72 for the

screws

66 and 75 to be disposed; the shapes of the first sliding plate 64 and the second sliding plate 73 correspond to the shapes of the first sliding rail 63 and the second sliding rail 72, respectively.

When the present invention composed of the above-mentioned structures is actually used, as shown in fig. 6 and 7, when a user wants to measure the BT-type handle 91, the user can relatively insert the BT-type handle 91 through the shaft hole 14 into the first bearing 151, the adjusting ring 152 and the second bearing 153, then insert the two screw members 27 through the two clamping blocks 26 to be fixed to the locking hole 221, clamp the BT-type handle 91 on the mandrel 21 by the convex parts 261 of the two clamping blocks 26, so that the BT-type handle 91 is fixed on the rotary base 11, then rotate the second crank mechanism 65 to drive the first sliding plate 64 to move along the first sliding rail 63, then rotate the third crank mechanism 74 to drive the second sliding plate 73 to move along the second sliding rail 72, so as to adjust the measuring meter to the optimal hand-operated position of the measuring handle, and then cooperatively rotate the crank mechanism 24, the bevel gear 23 drives the bevel gear 23 to drive the spindle 22 to rotate, and the straightness, roundness and other data of the tool holder can be measured by the measuring meter. Furthermore, when a user wants to measure the vertical straightness of the BT-type hilt 91 or other measurement situations where rotation should be avoided, the positioning element 41 can extend into the shaft hole 14 and abut against the outer peripheral surface of the collar 25 by rotating the operating handle 42 of the positioning element 41 to push and position the spindle 21, thereby ensuring that the spindle 21 and the BT-type hilt 91 do not rotate during the measurement process, and the measurement accuracy is affected. The surface of the base 51 is processed with high precision and the bottom surface of the rotary seat 11 or the sliding seat 61 is also processed with high precision, so that the precision can be achieved, the embedded grooves 131, 62 and the embedded block 52 are mutually clamped to be accurately arranged on the first axis X, and a user can also detach the rotary seat 11 or the sliding seat 61 and the lifting seat 71 from the base 51 respectively according to the use requirement, and install the detached mechanism on a machine or other jigs to measure the object, thereby the invention has more flexibility in use.

As shown in fig. 8, the multi-purpose measuring table provided by the present invention is used for setting an NT-shaped tool holder 92 in another use state, and cooperates with the two clamping blocks 26 to clamp the NT-shaped tool holder 92, so that the NT-shaped tool holder 92 can be fixed on the spindle 21, and then the second crank mechanism 65 and the third crank mechanism 74 are rotated to adjust the measuring scale to the optimal position of the measuring tool holder, so as to measure the straightness of the NT-shaped tool holder 92, or the positioning element 41 can be used to fix the spindle 21 by pushing, so as to effectively prevent the spindle 21 and the NT-shaped tool holder 92 from rotating, and further ensure the measuring accuracy in the vertical straightness measurement and other measurement fields where rotation should be avoided.

Of course, as shown in fig. 9, the user may also directly and vertically set a BT-type or NT-type tool bar 93 in the spindle 21 to directly measure the data of the tool bar 93 such as the straightness and roundness, and clamp the tool bar 93 by the two clamping blocks 26, so as to greatly reduce the influence on the measurement accuracy caused by the shaking and deflection of the tool bar 93 due to its too long overall length.

Furthermore, the present invention may be used for other measurement purposes by installing different types of spindles, which are illustrated in the following examples: as shown in fig. 10, a second embodiment of the present invention is based on the first embodiment, and the difference is that: the top 22 of the spindle 21 is provided with an ER-type chuck 94, and the ER-type chuck 94 can clamp and fix a round rod 941 (or a round tube), and then the hand wheel 33 of the hand crank mechanism 31 is rotated to drive the rotating shaft 32 to synchronously drive the spindle 21 and the round rod 941 to rotate, so as to measure the roundness of the round rod 941, or the positioning member 41 can clamp and fix the spindle 21, so as to effectively prevent the spindle 21 and the round rod 941 from rotating, and also ensure the measurement accuracy in the vertical straightness measurement and other measurement occasions where rotation should be avoided.

As shown in fig. 11, a third embodiment of the present invention is based on the first embodiment, except that: the top 22 of the mandrel 21 has a concave mounting portion 28, and a slope 281 capable of positioning the sphere is formed at the upward periphery of the mounting portion 28, so that a sphere 95 can be placed and arranged through the slope 281, and then the rotating shaft 32 can be driven to synchronously drive the mandrel 21 and the sphere 95 to rotate by rotating the hand wheel 33 of the hand crank mechanism 31, so as to measure the roundness of the sphere 95, or the mandrel 21 can be fixed by pushing the positioning member 41, so that the rotation of the mandrel 21 and the sphere 95 can be effectively avoided, and the measurement accuracy in the measurement field where the rotation should be avoided can be further ensured.

As shown in fig. 12, a fourth embodiment of the present invention is based on the aforementioned third embodiment, and the difference is that: the spindle 21 can be used for installing and fixing a multi-jaw chuck 29 such as a three-jaw chuck, so that other objects to be tested (not shown) can be fixed by the three-jaw chuck 29, and then the hand wheel 33 of the hand crank mechanism 31 is rotated, so that the rotating shaft 32 can be driven to synchronously drive the spindle 21 and the clamped object to be tested to rotate, or the spindle 21 is fixed by pushing the positioning member 41, so that the spindle 21 and the clamped object to be tested can be effectively prevented from rotating, and the data such as the verticality and the true straightness of the object to be tested can be accurately measured.

As shown in fig. 13 and 14, a fifth embodiment of the present invention is a fifth embodiment, which is based on the third embodiment and has the following differences: a flange 96 is disposed on the top 22 of the mandrel 21, and a plurality of through holes 961 are disposed on the flange 96, and fixed with the mandrel 21 by a plurality of bolts 962 passing through the through holes 961, so that the upper surface of the flange 96 can be provided for an iron pipe 97 (as shown in fig. 13), a round bar, or a six-sided right-angled column 98 (as shown in fig. 14), and then the rotating shaft 32 can be driven to synchronously drive the mandrel 21 and the iron pipe 97 or the six-sided right-angled column 98 to rotate by rotating the hand wheel 33 of the hand crank mechanism 31, or the positioning member 41 can be used to fix the mandrel 21 by pushing, so as to effectively prevent the mandrel 21 from rotating with the iron pipe 97 or the six-sided right-angled column 98 disposed thereon, and also provide for accurately measuring the data of the object to be measured, such as perpendicularity, true straightness, and the like.

As can be seen from the foregoing description, the multi-purpose measuring station provided by the present invention has the following advantages:

1. the multi-purpose measuring table provided by the invention has the advantages that through the design that the mandrel 21 of the multi-purpose measuring table can be replaced and the positioning accessories are additionally assembled, the multi-purpose measuring table can be further fixed and adjusted according to the types of different objects to be measured, and the measurement is facilitated.

2. The base 51 of the invention is made of granite, which can effectively avoid the situation that the deviation of the positions and verticality between the rotating seat 11 and the sliding seat 61 affects the measurement accuracy caused by the environmental temperature or internal stress of the base, and the rotating seat 11, the sliding seat 61 and the lifting seat 71 thereof can be detached from the base 51 for independent use.

3. The multi-purpose measuring table provided by the invention further has the positioning piece 41 capable of additionally positioning the mandrel 21, and the design of the positioning piece 41 can effectively prevent the mandrel 21 and the workpiece to be measured from rotating during measurement, thereby having the advantage of effectively ensuring the measurement accuracy.

The above description is of the preferred embodiment of the present invention and the technical principles applied thereto, and it will be apparent to those skilled in the art that any changes and modifications based on the equivalent changes and simple substitutions of the technical solution of the present invention are within the protection scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A multipurpose measuring table is characterized by comprising:

the rotary seat can be assembled on a base, the upper end of the rotary seat is provided with a shaft hole which extends downwards, the shaft hole is provided with an upper section and a lower section, the aperture of the upper section is larger than that of the lower section, a step surface is formed between the upper section and the lower section, and the upper section of the shaft hole is provided with at least one bearing;

2. The multi-purpose metrology platform of claim 1, wherein: the upper section of the shaft hole is sequentially overlapped with a first bearing, an adjusting ring and a second bearing which can be correspondingly penetrated by the mandrel from top to bottom, and the second bearing at the lowest part is relatively abutted against the step surface.

3. The multi-purpose metrology platform of claim 2, wherein: the upper end of the rotating seat is connected with a hollow annular fixing ring, and the fixing ring extends downwards towards the shaft hole to form a pressing part which can be pressed against the first bearing relatively.

4. The multi-purpose metrology platform of claim 1, wherein: the rotary seat is provided with a lower end, at least one embedded groove is arranged at the lower end, the upper surface of the base is high in straight precision, a first axis and a second axis which is perpendicular to the first axis are defined on the base, and a plurality of embedded blocks are arranged on the base along the first axis, so that the rotary seat can be relatively arranged on the base by matching the embedded grooves with the embedded blocks.

5. The multi-purpose metrology platform of claim 4, wherein: the base is further provided with a sliding seat, the bottom surface of the sliding seat is provided with at least one embedded groove, the embedded grooves and the embedded blocks are clamped with each other through the embedded grooves and are located on the base, the sliding seat is provided with a first sliding rail arranged along the first axis direction, the first sliding rail is provided with a first sliding plate, one side of the sliding seat is provided with a second rocking handle mechanism, the second rocking handle mechanism is provided with a first screw rod for driving the first sliding plate to move along the first sliding rail, a lifting seat is arranged on the first sliding plate and is provided with a second sliding rail arranged along the second axis direction, the second sliding rail is provided with a second sliding plate, one side of the lifting seat is provided with a third hand crank mechanism, and the third hand crank mechanism is provided with a second screw rod for driving the second sliding plate to move along the second sliding rail.

6. The multi-purpose measuring station of claim 5, wherein: the first slide rail and the second slide rail are respectively I-shaped slide rails, and a containing chamber is respectively arranged on the first slide rail and the second slide rail for the arrangement of the first screw and the second screw; the shapes of the first sliding plate and the second sliding plate respectively correspond to the shapes of the first sliding rail and the second sliding rail.

7. The multi-purpose measuring station of claim 5, wherein: the base is made of granite, and a plurality of mounting holes are arranged around the embedded block on the base, and a screw head is respectively and fixedly arranged in each mounting hole so that the rotating seat and the sliding seat can be respectively positioned by a screw and the screw head.

8. The multi-purpose metrology platform of claim 1, wherein: the mandrel is sleeved with a lantern ring above the first bevel gear, and the lantern ring is oppositely positioned in the lower section of the shaft hole and has a distance with the inner wall surface of the shaft hole.

9. The multi-purpose metrology platform of claim 8, wherein: the screw hole is arranged opposite to the lantern ring on the mandrel, so that the positioning piece can extend into the shaft hole and is relatively abutted against the outer peripheral surface of the lantern ring to push and position the mandrel.

10. The multi-purpose metrology platform of claim 1, wherein: the top end of the mandrel is provided with at least two locking holes, each locking hole is respectively used for assembling one clamping block, the two clamping blocks respectively extend outwards to form a convex part, the two clamping blocks are respectively provided with a penetrating part, two screw connecting pieces penetrate through the penetrating parts to be fixed with the locking holes, and the convex parts of the two clamping blocks can be used for clamping an object to be detected on the mandrel.