Feeding and discharging system of gantry three-coordinate measuring machine

Abstract

The utility model discloses a loading and unloading system for a three-coordinate measuring machine of a portal frame, which comprises two devices, two sub-devices, a main frame body, a plurality of sub-devices, a plurality of loading and unloading devices, a plurality of loading and unloading devices, a plurality of loading and unloading devices and a plurality of loading and unloading devices, the lifting frame body is arranged on the main frame body in a sliding manner; the driving device is connected with the lifting frame body; the positioning and supporting assembly is arranged on the two main frame bodies of the two sub-devices; a butt joint interface part is arranged above the tray; a transfer device; during feeding, the transfer device drives the tray to move to the transfer space, the lifting frame body ascends to jack the tray so that the tray can be separated from the transfer device, the transfer device is moved out of the transfer space, and the lifting frame body descends so that the butt joint port part of the tray and the positioning supporting assembly can be positioned in a matched mode. And during discharging, the driving device acts to jack up the tray and then falls down, so that the tray falls onto the transfer device. According to the automatic feeding and discharging system, automatic feeding and discharging can be achieved, and the feeding and discharging efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the measurement technical field, specifically, relate to an improvement of gantry three -coordinate measuring machine feeding and discharging system. BACKGROUND

[0002] Aerospace, military industry and other heavy industry fields often use large structural parts, and the dimensional deviation of these structural parts directly determines the performance of the equipment system. Due to the large size, the detection of parts is usually completed by a gantry three-coordinate measuring machine. The gantry three-coordinate measuring machine has the advantages of high precision and high automation. Because its structure is gantry type, it is suitable for precision measurement of large and medium-sized parts.

[0003] With the development of computer technology, the functions of three-coordinate measuring machines are becoming more and more rich. According to the needs of users, corresponding special measurement software can be integrated, different measurement programs can be written for different parts, and the corresponding program can be called during measurement, so that the measurement is more convenient and fast. Therefore, full-automatic measurement has a technical foundation.

[0004] For the gantry three-coordinate measuring machine, manual feeding and discharging is generally adopted, and workers operate the crane to hoist the parts for feeding and discharging. The efficiency is low, and there is a safety hazard. Therefore, it is necessary to develop an automatic feeding and discharging system for the gantry measuring machine.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it can include prior art known by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0006] The utility model proposes an automatic feeding and discharging system for the gantry three-coordinate measuring machine to realize automatic feeding and discharging and improve the feeding and discharging efficiency in view of the above technical problems existing in the feeding and discharging system of the gantry three-coordinate measuring machine in the prior art.

[0007] In order to achieve the above utility model / design purposes, the utility model adopts the following technical solutions:

[0008] A gantry three-coordinate measuring machine feeding and discharging system, comprising:

[0009] The feeding and discharging device comprises two devices, and the two sub-devices are symmetrically arranged below the gantry three-coordinate measuring machine. A transfer space is formed between the two sub-devices, and each sub-device comprises:

[0010] A main frame body;

[0011] And a lifting frame body, which is slidably arranged on the main frame body;

[0012] A driving device is connected with the lifting frame body to drive the lifting frame body to lift up and down.

[0013] A positioning support assembly is arranged on the two main frame bodies of the two sub-devices.

[0014] A tray is arranged above which a docking interface part is arranged to cooperate with the positioning support assembly.

[0015] A transfer device is arranged to carry the tray and transfer the tray to or from the transfer space.

[0016] When feeding, the driving device drives the lifting frame body to lift up to lift the tray on the transfer device to separate the tray from the transfer device, and after the transfer device is moved away from the transfer space, the driving device drives the lifting frame body to lower down to make the docking interface part of the tray cooperate with the positioning support assembly.

[0017] When discharging, the driving device drives the tray to lift up and then drives the tray to lower down to the transfer device moved to the transfer space to transfer the tray out.

[0018] Compared with the prior art, the advantages and positive effects of the present application are:

[0019] The feeding and discharging system of the gantry three-coordinate measuring machine disclosed in the present application can drive the tray to the feeding and discharging device through the transfer device during feeding, and transfer the tray on the transfer device to the main frame body through the lifting action of the feeding and discharging device to realize automatic feeding operation.

[0020] During discharging, the tray and the material on the main frame body are transferred to the transfer device through the lifting action of the feeding and discharging device to realize automatic discharging operation.

[0021] The whole feeding and discharging system realizes automatic feeding and discharging operation without manual participation in control and hoisting operation, so that the feeding and discharging operation of the three-coordinate measuring machine is more convenient and efficient.

[0022] Other features and advantages of the present application will become more apparent after reading the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a stereogram of one embodiment of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0025] Figure 2 is a stereogram of one embodiment of the feeding and discharging device of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0026] Figure 3 is a cooperation structure diagram of the driving device and the lifting frame body of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0027] Figure 4 is a structure schematic diagram of one tray of the gantry three-coordinate measuring machine feeding and discharging system according to the present application arranged on the feeding and discharging device;

[0028] Figure 5 is a structure schematic diagram of another tray of the gantry three-coordinate measuring machine feeding and discharging system according to the present application arranged on the feeding and discharging device;

[0029] Figure 6 is a structure schematic diagram of the positioning support assembly of the gantry three-coordinate measuring machine feeding and discharging system according to the present application arranged on the main frame body;

[0030] Figure 7 is a local enlarged view of A of Figure 6 ;

[0031] Figure 8 is a structure schematic diagram of the cooperation of the second conical positioning part on the mounting cover and the mounting seat of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0032] Figure 9 is a structure schematic diagram of the cooperation of the second V-shaped positioning part on the mounting cover and the mounting seat of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0033] Figure 10 is a structure schematic diagram of the cooperation of the tray and the transfer device of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0034] Figure 11 is a structure schematic diagram of one tray of the gantry three-coordinate measuring machine feeding and discharging system according to the present application;

[0035] Figure 12 is a structure schematic diagram of another tray of the gantry three-coordinate measuring machine feeding and discharging system according to the present application.

[0036] In the figure, 100, gantry three-coordinate measuring machine; 200, sub-device; 210, main frame body; 220, lifting frame body; 230, transfer space; 240, driving device; 241, driving motor; 242, speed reducer; 243, output shaft; 244, screw lifting machine; 310, first positioning support ball; 320, first conical positioning part; 330, first V-shaped positioning part; 340, first support part; 400, tray; 410, positioning pin insertion hole; 420, first conical interface part; 430, second conical interface part; 440, third support part; 500, transfer device; 610, second positioning support ball; 620, second conical positioning part; 630, second V-shaped positioning part; 640, second support part; 710, guide rail; 720, sliding block; 810, mounting seat; 820, mounting cover. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0038] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0039] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In the description of the embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0040] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0041] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0042] In some embodiments of the present application, a gantry three-coordinate measuring machine 100 feeding and discharging system is proposed, which can be used to realize automatic feeding of the material measured by the gantry three-coordinate measuring machine 100, automatic transfer of the material to the measurement position of the gantry three-coordinate measuring machine 100, and automatic transfer of the material from the measurement position to the outside after the gantry three-coordinate measuring machine 100 completes the measurement of the material.

[0043] The feeding and discharging system comprises:

[0044] The feeding and discharging device comprises two devices, and two sub-devices 200 are symmetrically arranged below the gantry three-coordinate measuring machine 100. A transfer space 230 is formed between the two sub-devices 200, and the transfer space 230 is used for material input or output.

[0045] Each sub-device 200 comprises:

[0046] The main frame body 210 and the positioning support assembly arranged on the main frame body 210, the main frame body 210 can be used to realize the bearing of the material to be measured transferred, and the positioning support assembly arranged on the main frame body 210 can position the material to be measured, so as to ensure that the material is supported and positioned when the gantry three-coordinate measuring machine 100 measures, and ensure the measurement accuracy.

[0047] The lifting frame body 220 is slidably arranged on the main frame body 210.

[0048] The driving device 240 is connected with the lifting frame body 220 and is used to drive the lifting frame body 220 to lift.

[0049] The driving device 240 drives the lifting frame body 220 to move up and down, which can realize the lifting of the material placed on the lifting frame body 220.

[0050] The tray 400 is provided with a docking interface part matched with the positioning support assembly above it.

[0051] The transfer device 500 is used to bear the tray 400 and transfer the tray 400 to the transfer space 230 or transfer it out of the transfer space 230.

[0052] The tray 400 is used to bear the transferred material, which is the carrier of the material. The docking interface part on the tray 400 can cooperate with the main frame body 210 to ensure that the material placed thereon can be positioned and fixed to the main frame body 210 for measurement operation.

[0053] The transfer device 500 is an AGV transfer trolley, which can be used to support the tray 400 to enter the transfer space 230 for material feeding or to carry the tray 400 out of the transfer space 230 for material unloading.

[0054] The top surface of the transfer device 500 is higher than the top surface of the main frame 210 and the lifting frame 220 when it is not lifted, and the width of the tray 400 is greater than the width of the transfer space 230. When the tray 400 is in the transfer space 230, the two sides are located above the lifting frame 220.

[0055] When feeding, the transfer device 500 drives the tray 400 to move to the transfer space 230 according to the set path. At this time, the transfer device 500 and the tray 400 are located in the middle position of the two sub-devices 200, and the tray 400 is higher than the top surface of the lifting frame 220. At this time, the driving device 240 can be controlled to act, and the lifting devices on both sides of the tray 400 act simultaneously to drive the lifting frames 220 on both sides to rise along the main frame 210, so that the tray 400 is lifted upward from both sides, and the tray 400 and the transfer device 500 are separated.

[0056] After the transfer device 500 and the tray 400 are separated, the transfer device 500 can be moved out of the transfer space 230. At this time, the lifting frame 220 is lowered by the driving device 240, so that the tray 400 falls onto the main frame 210, and the tray 400 is supported and positioned by the butt joint interface portion at the bottom and the positioning support assembly on the main frame 210. At this time, the three-coordinate measuring machine can perform measurement operation.

[0057] When the three-coordinate measuring machine completes the measurement, the material unloading is performed. When unloading, the tray 400 is lifted by the driving device 240, so that the butt joint interface portion on the tray 400 is separated from the positioning support assembly. Then the transfer device 500 is controlled to move to the position below the tray 400 in the transfer space 230. Since the height of the transfer device 500 is higher than that of the main frame 210, when the lifting frame 220 is lowered by the driving device 240, the tray 400 falls onto the transfer device 500 instead of the main frame 210. The tray 400 on the transfer device 500 can be carried out by the transfer device 500 to realize the unloading operation.

[0058] The feeding and unloading system of the gantry three-coordinate measuring machine 100 in the embodiment can realize automatic feeding operation by the cooperation of the tray 400 carrying the material, the transfer device 500 and the feeding and unloading device. When feeding, the tray 400 is transferred to the feeding and unloading device by the transfer device 500, and the tray 400 on the transfer device 500 is transferred to the main frame 210 by the lifting action of the feeding and unloading device for measurement.

[0059] When discharging, the tray 400 and the material on the main frame body 210 are transferred to the transfer device 500 by the lifting action of the feeding and discharging device and the transfer device 500, so as to realize automatic discharging operation.

[0060] The whole feeding and discharging system realizes automatic feeding and discharging operation, without manual participation in controlling hoisting and other operations, so that the feeding and discharging operation of the three-coordinate measuring machine is more convenient and fast, and the efficiency of feeding and discharging is improved.

[0061] In some embodiments of the present application, the tray 400 is provided with a positioning pin hole 410, and the transfer device 500 is provided with a positioning pin matched with the positioning pin hole 410.

[0062] In order to realize the positioning of the tray 400 on the transfer device 500, the tray 400 is provided with a positioning pin hole 410, which can be inserted and matched with the positioning pin on the transfer device 500, so as to ensure that the tray 400 and the material will not shake and fall off during the transfer process.

[0063] When the feeding and discharging device acts, the tray 400 can be separated from the transfer device 500 by jacking up the tray 400.

[0064] When setting, the positioning pin hole 410 can be provided with multiple ones arranged at the four peripheral edges of the tray 400.

[0065] Alternatively, the positioning pin hole 410 can be arranged at the middle region of the tray 400, or arranged along the length or width of the tray 400, which is not limited here.

[0066] In some embodiments of the present application, the positioning and supporting assembly comprises:

[0067] The first positioning and supporting assembly comprises a first positioning and supporting ball group 310 provided on the two main frame bodies 210, and the first positioning and supporting ball group 310 comprises multiple first positioning and supporting balls 310.

[0068] The two sub-frame bodies are provided with a first conical positioning part 320, a first V-shaped positioning part 330 and at least one first supporting part 340, and multiple first positioning and supporting balls 310 are clamped in the first conical positioning part 320, the first V-shaped positioning part 330 and the at least one first supporting part 340.

[0069] In some embodiments, the main frame body 210 is provided with multiple mounting seats 810, and the first conical positioning part 320, the first V-shaped positioning part 330 and the at least one first supporting part 340 are arranged on the multiple mounting seats 810.

[0070] In the setting, the first conical positioning part 320 is a first conical positioning groove arranged on the mounting seat 810 of one of the sub-rack bodies, and the first V-shaped positioning part 330 is a first V-shaped positioning groove arranged on the mounting seat 810 of the other sub-rack body and diagonally arranged with the first conical positioning groove.

[0071] The first support part 340 is provided with two first circular support grooves with an inner diameter larger than that of the first positioning support ball 310, and is arranged on the mounting seat 810 of the two sub-rack bodies.

[0072] The mounting cover 820 is arranged above the mounting seat 810 and is locked on the mounting seat 810. The mounting cover 820 is provided with plug-in guide holes penetrating the mounting cover 820.

[0073] The plug-in guide holes on the mounting cover 820 are circular guide holes and are respectively matched with the first conical positioning groove, the first V-shaped positioning groove or the first circular support groove arranged on the mounting seat 810.

[0074] The plurality of first positioning support balls 310 are arranged in the first V-shaped positioning groove, the first conical positioning groove and the first circular support groove after penetrating the plug-in guide holes on the mounting cover 820.

[0075] The first positioning support assembly can be used in cooperation with a small-sized tray 400 to position the small-sized tray 400.

[0076] In some embodiments of the present application, the butt joint interface part on the small-sized tray 400 includes a plurality of first conical interface parts 420 arranged along the circumferential edge of the tray 400, and the plurality of first conical interface parts 420 are matched with the upper part of the plurality of first positioning support balls 310.

[0077] The first conical interface part 420 is a first conical groove formed at the position on both sides of the tray 400 and used for clamping and setting cooperation with the plurality of first positioning support balls 310.

[0078] The first positioning support ball 310 assembled into the first conical positioning groove can rotate relative to the first conical positioning groove, the first positioning support ball 310 assembled into the first V-shaped positioning groove can move along the opening direction of the first V-shaped groove,

[0079] And the first positioning support ball 310 in the first support groove can rotate and move.

[0080] When the tray 400 is clamped on the plurality of first positioning support balls 310, one of the first taper slots above the tray 400 is clamped on the first positioning support ball 310 in the first taper positioning slot, at this time, the tray 400 moves so that the first taper slot above the tray 400 is clamped in place, the tray 400 is centered, but the tray 400 can still rotate relative to the first support positioning ball.

[0081] Due to manufacturing deviations, another first taper slot on the tray 400 cannot be completely clamped in place when clamped with the first V-shaped positioning slot, and the first positioning support ball 310 in the first V-shaped positioning slot can move along the opening direction of the first V-shaped positioning slot to make the first positioning support ball 310 finally clamped in place with the first taper slot on the tray 400. The first V-shaped positioning slot ensures that the first positioning support ball 310 can be clamped in place with the first taper slot on the tray 400, and the first V-shaped positioning slot limits the rotation of the first positioning support ball 310 inside it, thereby limiting the rotation of the tray 400 provided with the first taper slot, achieving rotation limiting of the tray 400.

[0082] Through the cooperation of the remaining two first circular support slots and two first positioning support balls 310, the supporting effect of the tray 400 is achieved.

[0083] In some embodiments of the present application, the positioning support assembly comprises:

[0084] The second positioning support assembly comprises a second positioning support ball 610 group arranged on the two main frame bodies 210, and the second positioning support ball 610 group comprises a plurality of second positioning support balls 610.

[0085] The second taper positioning part 620, the second V-shaped positioning part 630, and at least one second support part 640 are arranged on the two sub-frame bodies, and a plurality of second positioning support balls 610 are clamped below the second taper positioning part 620, the second V-shaped positioning part 630, and at least one second support part 640.

[0086] The second taper positioning part 620 is a second taper positioning slot, and the second V-shaped positioning part 630 is a second V-shaped positioning slot.

[0087] The second support part 640 is a second circular support slot, and the inner diameter of the second circular support slot is greater than that of the second positioning support ball 610.

[0088] In some embodiments of the present application, a plurality of mounting seats 810 are arranged on the main frame body 210, and the second taper positioning part 620, the second V-shaped positioning part 630, and at least one second support part 640 are arranged on the plurality of mounting seats 810.

[0089] The mounting cover 820 is arranged on each mounting seat 810, and the second positioning support balls 610 pass through the through holes in the mounting cover 820 and are arranged in the second conical positioning portions 620, the second V-shaped positioning portions 630 and the second support portions 640.

[0090] The contour line of the first positioning support balls 310 is located inside the contour line of the second positioning support balls 610, which means that the second positioning support balls 610 have a larger area and can be used to support and position the tray 400 with a larger size.

[0091] In some embodiments of the present application, the docking interface portion of the tray 400 with a larger size comprises a plurality of second conical interface portions 430 arranged along the circumferential edge of the tray 400, and the second conical interface portions 430 are matched with the upper portions of the second positioning support balls 610.

[0092] In addition, the tray 400 with a larger size comprises a plurality of third support portions 440 matched with the first positioning support balls 310.

[0093] The second conical interface portion 430 is a second conical groove, and the third support portion 440 is a third circular support groove with an inner diameter larger than that of the first positioning support ball 310.

[0094] The second positioning support ball 610 assembled into the second conical positioning groove can rotate relative to the second conical positioning groove, the second positioning support ball 610 assembled into the second V-shaped positioning groove can move along the opening direction of the second V-shaped positioning groove, and the second positioning support ball 610 in the second support groove can rotate and move.

[0095] When the tray 400 is matched with the second positioning support balls 610, one of the second conical grooves above the tray 400 is matched with the second positioning support ball 610 in the second conical positioning groove. Since the second positioning support ball 610 is positioned, the tray 400 moves so that the second conical groove above the tray 400 is matched with the second positioning support ball 610, the tray 400 is centered, but the tray 400 can still rotate relative to the second support positioning ball.

[0096] Due to manufacturing deviation, another second conical groove on the tray 400 cannot be completely clamped in place when clamped with the second V-shaped positioning groove. When clamped, the second positioning support ball 610 located in the second V-shaped positioning groove can move along the opening direction of the second V-shaped positioning groove, so that the second positioning support ball 610 is finally clamped in place with the second conical groove on the tray 400. Through the arrangement of the second V-shaped positioning groove, it is ensured that the second positioning support ball 610 can be clamped in place with the second conical groove on the tray 400. Due to the arrangement of the second V-shaped positioning groove, the rotation of the second positioning support ball 610 inside is limited, thereby limiting the rotation of the tray 400 provided with the second conical groove, and the rotation of the tray 400 is limited.

[0097] Through the cooperation of the remaining second circular support groove and the two second positioning support balls 610, the supporting effect of the tray 400 is achieved.

[0098] At the same time, in order to avoid overfitting of the tray 400 with the plurality of first positioning support balls 310 at the middle position, a plurality of third circular support grooves are used to cooperate with the plurality of first positioning support balls 310.

[0099] The positioning and supporting assembly in the embodiment can realize positioning and supporting of trays 400 of different sizes by arranging the first positioning and supporting assembly and the second positioning and supporting assembly, so that the whole feeding and discharging system can simultaneously feed and discharge two different types of materials, improving the versatility and compatibility of the whole feeding and discharging system.

[0100] In some embodiments of the present application, the driving device 240 comprises a driving motor 241;

[0101] A speed reducer 242 connected with the driving motor 241, and output shafts 243 formed on both sides of the speed reducer 242;

[0102] Two lead screw elevators 244 are arranged and connected with the output shafts 243 on both sides;

[0103] The lifting frame body 220 is provided with one, which is fixedly connected with the two lead screw elevators 244.

[0104] When the driving motor 241 acts, it drives the speed reducer 242 to act, and the output shafts 243 at both ends output power to the lead screw elevators 244 connected therewith, and the lead screw elevators 244 drive the lifting frame body 220 to move up and down.

[0105] By arranging two lifting frame bodies 220, the tray 400 can be uniformly and stably jacked along the side direction of the tray 400 when the tray 400 is jacked.

[0106] In some embodiments of the present application, a sliding assembly is arranged between the main frame 210 and the lifting frame 220, which includes a guide rail 710 arranged on the lifting frame 220 and a sliding block 720 arranged on the main frame 210.

[0107] The guide rail 710 and the sliding block 720 are arranged in cooperation, which can guide the lifting frame 220 to slide up and down.

[0108] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, the technical solutions recorded in the foregoing embodiments can still be modified by those of ordinary skill in the art, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. A gantry three-coordinate measuring machine feeding system, characterized in that, The utility model relates to a gantry three -dimensional measuring machine loading and unloading system, including have: The upper and lower material feeding device includes two sub-devices, the two sub-devices are symmetrically arranged below the gantry three -dimensional measuring machine, and a transfer space is formed between the two sub-devices, each sub-device includes: Main frame body; And the lifting frame body can be slidably arranged on the main frame body; The driving device is connected with the lifting frame body to drive the lifting frame body to rise and fall; The positioning support assembly is arranged on the two main frame bodies of the two sub-devices; The tray is provided with a docking interface part matched with the positioning support assembly above it; The transfer device is used to carry the tray and transfer the tray to the transfer space or transfer the tray out of the transfer space; When loading, the driving device drives the lifting frame body to rise and lift the tray on the transfer device to separate the tray from the transfer device, and after the transfer device moves out of the transfer space, the driving device drives the lifting frame body to descend to make the docking interface part of the tray match and position with the positioning support assembly; When unloading, the driving device drives the tray to rise and then drives the tray to descend to the transfer device moved to the transfer space to transfer the tray out.

2. The gantry three-coordinate measuring machine feeding and discharging system according to claim 1, characterized in that, A positioning pin hole is arranged on the tray, and a positioning pin matched with the positioning pin hole is arranged on the transfer device.

3. The gantry three -dimensional measuring machine loading and unloading system according to claim 1, wherein The positioning support assembly includes: The first positioning support assembly includes a first positioning support ball group arranged on the two main frame bodies, and the first positioning support ball group includes a plurality of first positioning support balls; A first conical positioning part, a first V-shaped positioning part and at least one first support part are arranged on the two sub-frame bodies, and the plurality of first positioning support balls are clamped in the first conical positioning part, the first V-shaped positioning part and the at least one first support part below; The second positioning support assembly includes a second positioning support ball group arranged on the two main frame bodies, and the second positioning support ball group includes a plurality of second positioning support balls; A second conical positioning part, a second V-shaped positioning part and at least one second support part are arranged on the two sub-frame bodies, and the plurality of second positioning support balls are clamped in the second conical positioning part, the second V-shaped positioning part and the at least one second support part below; Wherein, the contour line of the plurality of first positioning support ball centers is inside the contour line formed by the plurality of second positioning support ball centers.

4. The gantry three -dimensional measuring machine loading and unloading system according to claim 3, wherein The docking interface part includes a plurality of first conical interface parts arranged along the circumferential edge of the tray, and the plurality of first conical interface parts are clamped and matched with the upper parts of the plurality of first positioning support balls.

5. The gantry three -dimensional measuring machine loading and unloading system according to claim 3, wherein The docking interface part includes a plurality of second conical interface parts arranged along the circumferential edge of the tray, and the plurality of second conical interface parts are clamped and matched with the upper parts of the plurality of second positioning support balls; And a plurality of third support parts are respectively clamped and matched with the plurality of first positioning support balls.

6. The gantry three-coordinate measuring machine loading and unloading system according to claim 1, characterized in that, The driving device includes a driving motor; A speed reducer connected with the driving motor, and output shafts are formed on both sides of the speed reducer; Two screw jacks are arranged and connected with the output shafts on both sides respectively; The lifting frame body is arranged with one and fixedly connected with the two screw jacks respectively.

7. The gantry three-coordinate measuring machine feeding and discharging system according to claim 1, characterized in that, A sliding assembly is arranged between the main frame body and the lifting frame body and cooperates with each other, the sliding assembly comprises a guide rail arranged on the lifting frame body and a sliding block arranged on the main frame body.

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