CN206959820U - A kind of three coordinate measuring machine for being used to measure side surface of workpiece hole position - Google Patents

Abstract

The utility model provides a kind of three coordinate measuring machine for being used to measure side surface of workpiece hole position, including workbench, left socle, right support and X-axis transmission mechanism, left socle and right support are installed on workbench both sides, X-axis transmission mechanism is installed on workbench bottom, and is fixedly connected with left socle and right support；Also include YZ shaft movement mechanisms and R axle rotating mechanisms；YZ shaft movement mechanisms include slider servo motor, sliding block, electronic plug gauge and measuring point, slide block slot is provided with left socle, sliding block one end is placed in slide block slot, and is fixed with slider servo motor, the sliding block other end is fixed with electronic plug gauge one end, and the electronic plug gauge other end is connected to measuring point；R axles rotating mechanism includes R axles rotating disk, rotating disk servomotor and R axis detectors, and R axle rotating disks are installed on workbench, and rotating disk servomotor is installed on workbench bottom, and is fixed with R axle rotating disks, and R axis detectors are installed on rotating disk servomotor.The utility model reduces clamping times, improves measurement efficiency.

Description

A kind of three coordinate measuring machine for being used to measure side surface of workpiece hole position

Technical field

A kind of physical dimension measuring instrument field is the utility model is related to, more particularly to it is a kind of for measuring workpiece side face The three coordinate measuring machine of position.

Background technology

Three-coordinates measuring machine is a kind of measuring instrument of the high precision to grow up the 1960s, and also known as three sit Co-ordinate measuring machine or three-dimensional coordinates measurement bed.Its operation principle is：Testee is placed in three-dimensional coordinates measurement space, passes through X-axis, Y-axis With the displacement of three direction mechanisms of Z axis, and the movable measurement probe in Z-direction mechanism, measured object is obtained with this The coordinate position of each measurement point on body, according to the spatial value of these measurement points, it is computed obtaining the dimensioning of testee Very little, shape and position.The measurement function of three-coordinates measuring machine should include dimensional accuracy, positioning precision, geometric accuracy and profile essence Degree etc..

Traditional following shortcoming of three-coordinates measuring machine generally existing：

(1) because three coordinate measuring machine is using the measurement of probe progress contact, if workpiece is too tiny, probe can not enter Row detection, or workpiece is the soft material such as thin, situations such as deforming during contact, it can not all be carried out using three coordinate measuring machine Measurement, cause to measure the limitation of workpiece；(2) of a relatively high to environmental requirement, operating personnel's measurement level has certain limitation, Evaluation for some parameters is not too accurate；(3) in order to determine that datum mark need to use special fixture, this can cause compared with High measurement expense, product of different shapes can cause original fixture inapplicable and increase cost；(4) contact triggering is surveyed Head is measured in a manner of passing in and out point by point, so measuring speed is slow, there is certain limitation.Above deficiency has caused respectively The vast concern of big three-coordinates measuring machine manufacturer.

Three-coordinates measuring machine can be used for the precision for detecting automobile gearbox hole position.The main function of gear box is branch Each power transmission shaft is held, ensures centre-to-centre spacing and the depth of parallelism between each axle, and ensures coupled other of gear box part The correct installation of part.Therefore, the crudy of box body of car gear-box part, the assembling of automobile gearbox is not only directly affected Precision and kinematic accuracy, but also operating accuracy, performance and the life-span of automobile can be influenceed.Due to above reason, for becoming The required precision of fast case hole position is just very strict.And because gearbox side Ye You holes, examined with traditional three-coordinates measuring machine During survey, measurement efficiency is slow, and needs repeated clamping during measurement side profile.Therefore, develop a kind of with compared with high detection efficiency Three-coordinates measuring machine be necessary.

Chinese invention patent application CN103557818B discloses a kind of probe conversion device for three coordinate measuring machine, It is related to three coordinate measuring machine.Provided with base, gauge head erecting bed, stepper motor, driving shaft, curve sheave mechanism driving link, curve Geneva mechanism driven member, driven shaft, bearing, detent mechanism and wire winding ring；Base is connected with gauge head erecting bed, stepper motor output Axle and active axis connection, on curve sheave mechanism driving link, driven shaft is located on curve sheave mechanism driven member driving shaft, Driven shaft upper end is connected with gauge head erecting bed, and on driven shaft, bearing is arranged on base bearing, and detent mechanism is provided with positioning Bar, 2 positioning ball and springs, locating rod middle part are spirally connected with driven shaft, and in locating rod, 2 positioning balls are set spring housing respectively In one end of locating rod, the inwall of the base is provided with least four positioning hole, and the positioning ball is embedded in positioning hole, wire winding ring On the driven shaft.Although the structure of the program is simple, accurate positioning, is remarkably improved work efficiency；But work can only be measured Profile at the top of part, multiple clamping still is needed for the side profile that needs measure, complicated, efficiency is low.

Chinese invention patent application CN102706298 discloses a kind of three-dimensional coordinates measurement that a variety of metering systems can be achieved Machine.Need to change gauge head unit during the three coordinate measuring engine measurement of prior art, influence measurement accuracy and efficiency.It is existing to overcome There is deficiency existing for technology, the technical scheme that the invention provides is:The three coordinate measuring machine of a variety of metering systems can be achieved, including XZ balladeur trains, two sets of Z axis moving parts are provided with the XZ balladeur trains, a Z axis is respectively included in two sets of Z axis moving parts, Two Z axis are arranged in parallel in vertical, and a set of gauge head unit is mounted on every Z axis.Although the invention need not be more Gauge head is changed to realize another metering system, and directly can be measured with an other Z axis, improves measurement efficiency. But due to installing gauge head using two Z axis, structure is more complicated, cost improves；There is no lateral surface measuring device, measure side Need multiple clamping during profile, measurement efficiency is low.

Chinese invention patent application CN105527019A discloses a kind of three coordinate four-degree-of-freedom diffraction intensity measuring tables, Including base, X-axis mechanism, Y-axis mechanism, Z-axis mechanism, rotating mechanism and light intensity detector, X-axis mechanism is arranged on base, Y-axis Mechanism is arranged in X-axis mechanism, and Z-axis mechanism is arranged in Y-axis mechanism, rotating mechanism is arranged on Z-axis mechanism, light intensity detector On rotating mechanism.The invention can measure the spectral measurement that the optical axis brought by diffraction element deflects, and compensate for tradition The deficiency of diffractometry instrument,, can compared to the degree of accuracy and the accuracy that manual regulation improves measurement using PC control So that applied to teaching demonstration and experimental study, very big help is brought for education and instruction and scientific research.But Y-axis exists in the program In X-axis, Z axis is in Y-axis, and rotary shaft is on Z axis, because each axle has error, when error is delivered to rotation from X-axis by superposition During axle, error can be very big, is insufficient for requiring, and the program is complicated, and cost is high, without lateral surface measuring device, surveys Multiple clamping is needed when measuring side profile, and measurement efficiency is low.

The content of the invention

The technical problems to be solved in the utility model, it is that providing a kind of three coordinates for being used to measure side surface of workpiece hole position surveys Amount machine, designed using three coordinate four-degree-of-freedoms, increase electronic plug gauge and R axle rotating disks on the basis of traditional three-coordinates measuring machine, Clamping times can be reduced, reduce measurement error, improve measurement efficiency during measurement workpiece.

What the utility model was realized in：

It is a kind of to be used to measuring the three coordinate measuring machine of side surface of workpiece hole position, the three coordinate measuring machine include a workbench, One left socle, a right support and an X-axis transmission mechanism, the left socle and right support are respectively arranged in the workbench both sides, The X-axis transmission mechanism is installed on the workbench bottom, and is fixedly connected with the left socle and right support, passes through the X Shaft transmission drives the left socle and right support to realize the motion on fore-and-aft direction；The three coordinate measuring machine also includes one YZ shaft movement mechanisms and a R axle rotating mechanisms；

The YZ shaft movement mechanisms include a slider servo motor, a sliding block, an electronic plug gauge and a measuring point, the left branch Offer a slide block slot along Z-direction on the inside of frame, one end of the sliding block is placed in the slide block slot, and with located at the left side The slider servo motor of stent outer is fixedly connected, and the other end of the sliding block is described on the inside of the left socle with being located at One end of electronic plug gauge is fixedly connected, and the other end of the electronic plug gauge is connected to the measuring point；Pass through slider servo electricity Machine drives the sliding block to be slided up and down in the slide block slot, drives the electronic plug gauge and the measuring point to carry out up and down with this Motion；And drive the electronic plug gauge axially to carry out left and right stretching motion, pass through the side of the measuring point and measured workpiece Hole wall contact measures and gathered data；

The R axles rotating mechanism includes a R axles rotating disk, a rotating disk servomotor and a R axis detectors, the R axles rotating disk It is installed on the workbench, the rotating disk servomotor is installed on the workbench bottom, and fixes and connect with the R axles rotating disk Connect, the R axis detectors are fixedly installed on the rotating disk servomotor；The R axles are driven by the rotating disk servomotor Rotating disk is rotated, and the angle turned over is detected by the R axis detectors.

Further, the X-axis transmission mechanism includes an X-axis servomotor, an X-axis screw mandrel, two X-axis polished rods, X-axis cunning Dynamic component, an X-axis shaft coupling and an X-axis detector, the X-axis screw mandrel and the two X-axis polished rods are fixed on the workbench bottom The front and rear sides in portion, the X-axis screw mandrel are located between the two X-axis polished rods, and the X-axis servomotor is installed on the workbench Rearward end, and one end of the X-axis screw mandrel is connected to by the X-axis shaft coupling, the X-axis detector is sheathed on the X-axis The other end of screw mandrel, the X-axis slide assemblies are arranged on the X-axis screw mandrel and the two X-axis polished rods respectively, and the X-axis Left socle and the right support bottom is fixed at slide assemblies both ends；The X-axis screw mandrel is driven to pass by the X-axis servomotor It is dynamic, so as to drive the left socle and right support to realize the motion on fore-and-aft direction by the X-axis slide assemblies.

Further, the three coordinate measuring machine also includes a Y-axis transmission mechanism, and the Y-axis transmission mechanism includes a Y-axis Servomotor, a Y-axis screw mandrel, two Y-axis polished rods, a Y-axis slide assemblies, a Y-axis shaft coupling, a Y-axis detector and a fixed seat, The Y-axis screw mandrel and the two Y-axis polished rods are fixed at the top of the left socle between right support top, the Y-axis silk Bar is located between the two Y-axis polished rods, and the Y-axis servomotor is installed on the left socle, and passes through the Y-axis shaft coupling One end of the Y-axis screw mandrel is connected to, the Y-axis detector is sheathed on the other end of the Y-axis screw mandrel, the Y-axis Slide Group Part is arranged on the Y-axis screw mandrel and the two Y-axis polished rods respectively, and the Y-axis slide assemblies are fixed on the fixed base rear end Portion；The Y-axis screw rod transmission is driven by the Y-axis servomotor, so as to drive the fixation by the Y-axis slide assemblies Seat realizes the motion on left and right directions.

Further, the three coordinate measuring machine also includes a Z-axis transmission mechanism, and the Z-axis transmission mechanism includes a Z axis Servomotor, a Z axis screw mandrel, two Z axis polished rods, a Z axis slide assemblies, a Z axis shaft coupling, a Z axis detector, a connecting rod And a probe, the connecting rod are connected with the fixed seat, the Z axis screw mandrel and the two Z axis polished rods are fixed on the company In extension bar part, the Z axis screw mandrel is located between the two Z axis polished rods, and the Z axis servomotor is installed on the connecting rod On, and one end of the Z axis screw mandrel is connected to by the Z axis shaft coupling, the Z axis detector is sheathed on the Z axis screw mandrel The other end, the Z axis slide assemblies are arranged on the Z axis screw mandrel and the two Z axis polished rods respectively, the Z axis Slide Group Part is fixed on the probe tip；The Z axis screw rod transmission is driven by the Z axis servomotor, so as to be slided by the Z axis Dynamic component drives the probe to realize the motion on above-below direction.

The utility model has the advantage of：

The utility model adds YZ shaft movement mechanisms and R axle rotating mechanisms, is mainly the increase in electronic plug gauge and R axles turn Disk.When measuring on revolving body workpieces circular section, workpiece for measurement can be moved into place by the rotation of R axle rotating disks, can subtracted Few gauge head improves measurement accuracy in order to reach error unnecessary caused by measurement position movement, with this.Utilize electronics plug When there is the workpiece of perforate rule measurement side, stretching motion and up and down motion can be carried out by electronic plug gauge, be treated using gauge head The hole for surveying side surface of workpiece measures, and improves the measurement accuracy of lateral aperture, and matching somebody with somebody due to electronic plug gauge and R axle rotating disks Close, the hole of any side of workpiece for measurement can be measured, improve measuring speed.

Brief description of the drawings

The utility model is further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is a kind of front view for being used to measure the three coordinate measuring machine of side surface of workpiece hole position of the utility model.

Fig. 2 is a kind of left view for being used to measure the three coordinate measuring machine of side surface of workpiece hole position of the utility model.

Fig. 3 is a kind of upward view for being used to measure the three coordinate measuring machine of side surface of workpiece hole position of the utility model.

Fig. 4 is a kind of rearview for being used to measure the three coordinate measuring machine of side surface of workpiece hole position of the utility model.

Label declaration in figure：

1- workbench, 2- left socles, 21- slide block slots, 3- right supports；

4-X shaft transmissions, 41-X axles servomotor, 42-X axial filaments bar, 43-X axles polished rod, 44-X axles slide assemblies, 45- X-axis shaft coupling, 46-X axis detectors；

5-YZ shaft movement mechanisms, 51- slider servos motor, 52- sliding blocks, 53- electronic plug gauges, 54- measuring points；

6-R axles rotating mechanism, 61-R axles rotating disk, 62- rotating disks servomotor, 63-R axis detectors；

7-Y shaft transmissions, 71-Y axles servomotor, 72-Y axial filaments bar, 73-Y axles polished rod, 74-Y axles slide assemblies, 75- Y-axis shaft coupling, 76-Y axis detectors, 77- fixed seats；

8-Z shaft transmissions, 81-Z axles servomotor, 82-Z axial filaments bar, 83-Z axles polished rod, 84-Z axles slide assemblies, 85- Z axis shaft coupling, 86-Z axis detectors, 87- connecting rods, 88- probes.

Embodiment

The utility model is made with reference to specific embodiment and further being described in detail, but structure of the present utility model It is not limited in following examples.

Refer to shown in Fig. 1 to Fig. 4, a kind of three-dimensional coordinates measurement for being used to measure side surface of workpiece hole position of the present utility model Machine, the three coordinate measuring machine include a workbench 1, a left socle 2, a right support 3, an X-axis transmission mechanism 4, YZ axles fortune Motivation structure 5, a R axles rotating mechanism 6, a Y-axis transmission mechanism 7 and a Z-axis transmission mechanism 8, the left socle 2 and right support 3 divide Be not installed on the both sides of workbench 1, the X-axis transmission mechanism 4 is installed on the bottom of workbench 1, and with the left socle 2 It is fixedly connected with right support 3, drives the left socle 2 and right support 3 to realize on fore-and-aft direction by the X-axis transmission mechanism 4 Motion；The Y-axis transmission mechanism 7 is installed between the left socle 2 and right support 3, passes through the band of Y-axis transmission mechanism 7 Move the motion on the completion left and right directions of fixed seat 77 in the Y-axis transmission mechanism 7；The Z-axis transmission mechanism 8 is installed on described The leading section of Y-axis transmission mechanism 7, the probe 88 in the Z-axis transmission mechanism 8 is driven to complete up and down by the Z-axis transmission mechanism 8 Motion on direction；The YZ shaft movement mechanisms 5 are used for the front and rear and upper-lower position for adjusting gauge head 54, preferably measure work to be measured The lateral aperture of part, improves measurement efficiency；The R axles rotating mechanism 6 drives and treats that the workpiece of survey time turns is rotated, and can subtract Few gauge head 54 improves measurement accuracy in order to reach error unnecessary caused by measurement position movement, with this.

Specifically have：

The YZ shaft movement mechanisms 5 include a slider servo motor 51, a sliding block 52, an electronic plug gauge 53 and a measuring point 54, the inner side of left socle 2 offers a slide block slot 21 along Z-direction, and one end of the sliding block 52 is placed in the slide block slot In 21, and be fixedly connected with the slider servo motor 51 located at the outside of the left socle 2, the other end of the sliding block 52 with It is fixedly connected located at one end of the electronic plug gauge 53 of the inner side of left socle 2, its fixed form is to be connected through a screw thread；Institute The other end for stating electronic plug gauge 53 is connected to the measuring point 54；The sliding block 52 is driven in institute by the slider servo motor 51 State and slided up and down in slide block slot 21, drive the electronic plug gauge 53 and the measuring point 54 to be moved up and down with this；And drive The electronic plug gauge 53 axially carries out left and right stretching motion, is contacted by the measuring point 54 with the side hole wall of measured workpiece Simultaneously gathered data is measured, the measuring point 54 is the sensor of hypersensitivity, when measuring point 54 touches the side of measured workpiece During hole, signal will be transmitted to receiver by the sensor of hypersensitivity, directly obtain pore diameter, measurement effect carries significantly It is high.

The R axles rotating mechanism 6 includes a R axles rotating disk 61, a rotating disk servomotor 62 and a R axis detectors 63, the R Axle rotating disk 61 is installed on the workbench 1, and the rotating disk servomotor 62 is installed on the bottom of workbench 1, and with the R Axle rotating disk 61 is fixedly connected, and the R axis detectors 63 are fixedly installed on the rotating disk servomotor 62；Watched by the rotating disk Taking motor 62 drives the R axles rotating disk 61 to be rotated, and the angle turned over is detected by the R axis detectors 63； The R axles rotating mechanism 6 is arranged on the workbench 1, and the R axles whirler is passed to by each axle when can reduce motion The error of structure 6, improves measurement accuracy.

For the hole on the diverse location of workpiece for measurement side, hole can be gone to by the R axles rotating mechanism 6 to be measured Position, then drive the electronic plug gauge 53 that the gauge head 54 is moved on to the position with porosity level by the sliding block 52, it is then right Hole measures.The X-Y-Z axles that each modular mechanical part is combined carry out routing motion, enable measurement apparatus three Neatly adjusting position on coordinate four-degree-of-freedom, makes measurement effect reach optimal with measurement efficiency.Pass through stretching motion, rotation fortune The dynamic measurement for carrying out aperture, linearity, position degree to workpiece side face with moving up and down.Pass through the R axles rotating mechanism 6 and institute The cooperation of YZ shaft movement mechanisms 5 is stated, when having the workpiece of hole in measurement side, the hole of diverse location can be measured, kept away Caused repeated clamping error during workpiece multiple clamping is exempted from, has improved measurement efficiency, save substantial amounts of manpower and time.

The X-axis transmission mechanism 4 includes an X-axis servomotor 41, an X-axis screw mandrel 42, two X-axis polished rods 43, an X-axis and slided Component 44, an X-axis shaft coupling 45 and an X-axis detector 46, the X-axis screw mandrel and the two X-axis polished rods are fixed on the work The front and rear sides of platform bottom, the X-axis screw mandrel are located between the two X-axis polished rods, and the X-axis servomotor is installed on the work Make platform rearward end, and one end of the X-axis screw mandrel is connected to by the X-axis shaft coupling, the X-axis detector is sheathed on described The other end of X-axis screw mandrel, the X-axis slide assemblies are arranged on the X-axis screw mandrel and the two X-axis polished rods respectively, and the X Left socle and the right support bottom is fixed at axle slide assemblies both ends；The X-axis screw mandrel is driven by the X-axis servomotor Transmission, so as to drive the left socle and right support to realize the motion on fore-and-aft direction by the X-axis slide assemblies；The X Shaft transmission 4 is arranged on the workbench 1, and the X-axis transmission mechanism 4 is passed to by each axle when can reduce motion Error, improve measurement accuracy.

The Y-axis transmission mechanism 7 includes a Y-axis servomotor 71, a Y-axis screw mandrel 72, two Y-axis polished rods 73, a Y-axis and slided Component 74, a Y-axis shaft coupling 75, a Y-axis detector 76 and a fixed seat 77, the 72 and two Y-axis polished rod 73 of Y-axis screw mandrel Be fixed between the top of the left socle 2 and 3, the right support top, the Y-axis screw mandrel 72 located at the two Y-axis polished rods 73 it Between, the Y-axis servomotor 71 is installed on the left socle 2, and is connected to the Y-axis silk by the Y-axis shaft coupling 75 One end of bar 72, the Y-axis detector 76 are sheathed on the other end of the Y-axis screw mandrel 72, and the Y-axis slide assemblies 74 are worn respectively On the 72 and two Y-axis polished rod 73 of Y-axis screw mandrel, the Y-axis slide assemblies 74 are fixed on the rear end of fixed seat 77 Portion；The Y-axis screw mandrel 72 is driven to be driven by the Y-axis servomotor 71, so as to drive institute by the Y-axis slide assemblies 74 State fixed seat 77 and realize motion on left and right directions.

The Z-axis transmission mechanism 8 includes a Z axis servomotor 81, a Z axis screw mandrel 82, two Z axis polished rods 83, a Z axis and slided Component 84, a Z axis shaft coupling 85, a Z axis detector 86, a connecting rod 87 and a probe 88, the connecting rod 87 and institute State fixed seat 77 to connect, the 82 and two Z axis polished rod 83 of Z axis screw mandrel is fixed in the connecting rod 87, the Z axis silk Bar 82 is located between the two Z axis polished rods 83, and the Z axis servomotor 81 is installed on the connecting rod 87, and passes through institute One end that Z axis shaft coupling 85 is connected to the Z axis screw mandrel 82 is stated, the Z axis detector 86 is sheathed on the another of the Z axis screw mandrel 82 One end, the Z axis slide assemblies 84 are arranged on the 82 and two Z axis polished rod 83 of Z axis screw mandrel respectively, and the Z axis slides Component 84 is fixed on the top of probe 88；The Z axis screw mandrel 82 is driven to be driven by the Z axis servomotor 81, so as to logical Crossing the Z axis slide assemblies 84 drives the probe 88 to realize the motion on above-below direction.

Although the foregoing describing specific embodiment of the present utility model, those familiar with the art should Work as understanding, the specific embodiment described by us is merely exemplary, rather than for the limit to the scope of the utility model Fixed, those skilled in the art should in the equivalent modification and change made according to spirit of the present utility model Cover in scope of the claimed protection of the present utility model.

Claims (4)

1. a kind of three coordinate measuring machine for being used to measure side surface of workpiece hole position, the three coordinate measuring machine include a workbench, one Left socle, a right support and an X-axis transmission mechanism, the left socle and right support are respectively arranged in the workbench both sides, institute State X-axis transmission mechanism and be installed on the workbench bottom, and be fixedly connected with the left socle and right support, pass through the X-axis Transmission mechanism drives the left socle and right support to realize the motion on fore-and-aft direction；It is characterized in that：The three-dimensional coordinates measurement Machine also includes a YZ shaft movement mechanisms and a R axle rotating mechanisms；

The YZ shaft movement mechanisms include a slider servo motor, a sliding block, an electronic plug gauge and a measuring point, in the left socle Side offers a slide block slot along Z-direction, and one end of the sliding block is placed in the slide block slot, and with located at the left socle The slider servo motor in outside is fixedly connected, the other end of the sliding block and the electronics on the inside of the left socle One end of feeler gauge is fixedly connected, and the other end of the electronic plug gauge is connected to the measuring point；Pass through the slider servo motor belt motor Move the sliding block to slide up and down in the slide block slot, transported with this to drive above and below the electronic plug gauge and measuring point progress It is dynamic；And drive the electronic plug gauge axially to carry out left and right stretching motion, pass through the lateral aperture of the measuring point and measured workpiece Wall contact measures and gathered data；

The R axles rotating mechanism includes a R axles rotating disk, a rotating disk servomotor and a R axis detectors, the R axles rotating disk installation In on the workbench, the rotating disk servomotor is installed on the workbench bottom, and is fixedly connected with the R axles rotating disk, The R axis detectors are fixedly installed on the rotating disk servomotor；The R axles rotating disk is driven by the rotating disk servomotor Rotated, and the angle turned over is detected by the R axis detectors.

A kind of 2. three coordinate measuring machine for being used to measure side surface of workpiece hole position as claimed in claim 1, it is characterised in that：It is described X-axis transmission mechanism include an X-axis servomotor, an X-axis screw mandrel, two X-axis polished rods, an X-axis slide assemblies, an X-axis shaft coupling and One X-axis detector, the X-axis screw mandrel and the two X-axis polished rods are fixed on the front and rear sides of the workbench bottom, the X-axis Screw mandrel is located between the two X-axis polished rods, and the X-axis servomotor is installed on the workbench rearward end, and passes through the X-axis Shaft coupling is connected to one end of the X-axis screw mandrel, and the X-axis detector is sheathed on the other end of the X-axis screw mandrel, the X-axis Slide assemblies are arranged on the X-axis screw mandrel and the two X-axis polished rods respectively, and institute is fixed at the X-axis slide assemblies both ends State left socle and right support bottom；The X-axis screw rod transmission is driven by the X-axis servomotor, so as to be slided by the X-axis Dynamic component drives the left socle and right support to realize the motion on fore-and-aft direction.

A kind of 3. three coordinate measuring machine for being used to measure side surface of workpiece hole position as claimed in claim 1, it is characterised in that：It is described Three coordinate measuring machine also includes a Y-axis transmission mechanism, and the Y-axis transmission mechanism includes a Y-axis servomotor, a Y-axis screw mandrel, two Y-axis polished rod, a Y-axis slide assemblies, a Y-axis shaft coupling, a Y-axis detector and a fixed seat, the Y-axis screw mandrel and two Y Axle polished rod be fixed at the top of the left socle and at the top of the right support between, the Y-axis screw mandrel located at the two Y-axis polished rods it Between, the Y-axis servomotor is installed on the left socle, and is connected to the one of the Y-axis screw mandrel by the Y-axis shaft coupling End, the Y-axis detector are sheathed on the other end of the Y-axis screw mandrel, and the Y-axis slide assemblies are arranged in the Y-axis silk respectively On bar and the two Y-axis polished rods, the Y-axis slide assemblies are fixed on the fixed seat rearward end；Pass through the Y-axis servomotor The Y-axis screw rod transmission is driven, so as to drive the fixed seat to realize the fortune on left and right directions by the Y-axis slide assemblies It is dynamic.

A kind of 4. three coordinate measuring machine for being used to measure side surface of workpiece hole position as claimed in claim 3, it is characterised in that：It is described Three coordinate measuring machine also includes a Z-axis transmission mechanism, and the Z-axis transmission mechanism includes a Z axis servomotor, a Z axis screw mandrel, two Z axis polished rod, a Z axis slide assemblies, a Z axis shaft coupling, a Z axis detector, a connecting rod and a probe, the connecting rod It is connected with the fixed seat, the Z axis screw mandrel and the two Z axis polished rods are fixed in the connecting rod, and the Z axis screw mandrel is set Between the two Z axis polished rods, the Z axis servomotor is installed on the connecting rod, and is connected by the Z axis shaft coupling One end of the Z axis screw mandrel is connected to, the Z axis detector is sheathed on the other end of the Z axis screw mandrel, the Z axis slide assemblies It is arranged in respectively on the Z axis screw mandrel and the two Z axis polished rods, the Z axis slide assemblies are fixed on the probe tip；Pass through The Z axis servomotor drives the Z axis screw rod transmission, so as to drive the probe to realize by the Z axis slide assemblies The upward motion in lower section.