CNC machine with rapid loading and positioning

Abstract

The application discloses a CNC machine capable of rapid feeding and positioning, which is internally provided with a machine tool workbench and further comprises a rapid feeding mechanism and a rapid positioning mechanism; the rapid feeding mechanism comprises a first heavy load guide rail and a second heavy load guide rail, the second heavy load guide rail is movable to a first position in a same straight line with the first heavy load guide rail; a clamp tray is movable along the first heavy load guide rail and the second heavy load guide rail to be pushed into or pulled out of the machine tool workbench; the rapid positioning mechanism comprises a zero point base plate provided with a plurality of mounting cavities, the mounting cavities are internally provided with gas holes in communication with gas channels; a piston is driven to move up and down in the mounting cavities by the gas channels blowing gas into the mounting cavities through the gas holes; a zero point pull plate is limitingly mounted above the zero point base plate and driven to move up and down by the piston; after the clamp tray is pushed into the machine tool workbench, the clamp tray moves up and down along with the zero point pull plate, and rapid replacement, feeding and positioning can be realized by the CNC machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of CNC equipment, and more particularly to a CNC machine with rapid feeding and positioning. BACKGROUND

[0002] At present, the automatic feeding and discharging of CNC equipment mainly uses robots, and different product fixtures and robot fixtures need to be customized for different products, which is complicated to change and debug. In actual use, it is suitable for processing large quantities of products, but it takes a long time to debug small quantities of products, which is not suitable. Using zero-point quick-change fixtures can realize quick switching of product fixtures, but there are also disadvantages. Some small and light fixtures can be quickly fed and discharged manually, and heavy products need to be fed and discharged by a crane, which is slow and troublesome, and the actual use efficiency is not high, and the labor intensity of the operator cannot be reduced. Using robots to feed and discharge occupies a large area and requires high investment, and the technical requirements for operators are high, which leads to long machine downtime.

[0003] At the same time, the zero-point fixture in the CNC equipment is mainly composed of a drawbar structure, and the manual operation is mostly small zero-point. Heavy zero-point is mostly fed and discharged by a robot or a crane, which is slow and uses a robot, which is high in cost, and such a zero-point fixture cannot meet the generality. SUMMARY

[0004] Therefore, the present application provides a CNC machine with rapid feeding and positioning.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme: a CNC machine with rapid feeding and positioning, which is provided with a machine tool workbench, and further comprises a rapid feeding mechanism and a rapid positioning mechanism.

[0006] The rapid feeding mechanism comprises:

[0007] A first heavy-duty guide rail is installed beside the machine tool workbench.

[0008] At least one second heavy-duty guide rail is movable to a first position in a straight line with the first heavy-duty guide rail, and movable to a second position not in a straight line with the first heavy-duty guide rail.

[0009] A fixture tray is limitingly installed at the second heavy-duty guide rail, and when the second heavy-duty guide rail moves to the first position, the fixture tray can move along the first heavy-duty guide rail and the second heavy-duty guide rail to push into or pull out the fixture installed on the machine tool workbench.

[0010] The rapid positioning mechanism comprises:

[0011] Zero point base plate, installed at the machine tool workbench, a plurality of installation cavities are arranged on the zero point base plate, and a gas hole communicating with the gas path is arranged in the installation cavity;

[0012] Piston, installed in the installation cavity of the zero point base plate, the gas path blows gas into the installation cavity through the gas hole to drive the piston to move up and down in the installation cavity;

[0013] Zero point pull plate, limitedly installed above the zero point base plate and driven to move up and down by the piston;

[0014] After the clamp tray is pushed into the machine tool workbench, the clamp tray is connected with the zero point pull plate, so that the clamp tray moves up and down with the zero point pull plate.

[0015] As a preferred scheme of the present application, it further comprises a heavy load support and a track;

[0016] The heavy load support is installed on the track, and the second heavy load guide rail is installed on the heavy load support; the heavy load support moves along the track to switch the second heavy load guide rail between the first position and the second position.

[0017] As a preferred scheme of the present application, the first heavy load guide rail and the second heavy load guide rail each comprise a guide rail support and a plurality of auxiliary rollers linearly arranged at the guide rail support, the auxiliary rollers contact the clamp tray and assist the clamp tray to move; or,

[0018] The first heavy load guide rail and the second heavy load guide rail each comprise a guide rail support and a plurality of auxiliary rolling bearings linearly arranged at the guide rail support, the auxiliary rolling bearings contact the clamp tray and assist the clamp tray to move.

[0019] As a preferred scheme of the present application, it further comprises a first driving device and a second driving device; the first driving device drives the clamp tray to move along the second heavy load guide rail and / or the first heavy load guide rail; the second driving device drives the heavy load support to linearly reciprocate along the track.

[0020] As a preferred scheme of the present application, the clamp tray comprises a tray plate and a limiting block;

[0021] The side surfaces of the two limiting blocks are provided with a first clamping surface and a second clamping surface in the form of steps, and a space is formed between the first clamping surface and the second clamping surface; the zero point pull plate is provided with a third clamping surface and a fourth clamping surface in the form of inverted steps on both sides;

[0022] When the clamp tray moves to the first heavy load guide rail and the second heavy load guide rail, the first clamping surface and the second clamping surface respectively interfere with the guide rail support, and the clamp tray cannot move in a direction perpendicular to the first heavy load guide rail and the second heavy load guide rail;

[0023] After the clamp tray is pushed into the machine tool workbench, the zero point pull plate is embedded into the space between the two limiting blocks, so that the clamp tray and the zero point pull plate are limited in the horizontal direction and the longitudinal direction.

[0024] As a preferred scheme of the present application, the first driving device comprises:

[0025] The slide rail is installed on the heavy load support and is parallel to the second heavy load guide rail.

[0026] The slide plate is installed on the slide rail and moves along the slide rail under the driving of the driving member.

[0027] The driving cylinder is installed on the slide plate, and the driving cylinder has a cylinder guide rod which is parallel to the second heavy load guide rail.

[0028] The dragging load plate is installed at the cylinder guide rod and is driven by the driving cylinder to move linearly.

[0029] As a preferred scheme of the present application, it further comprises an auxiliary rolling member and an auxiliary positioning mechanism.

[0030] The auxiliary rolling member is exposed on the upper surface of the zero point pull plate, and the auxiliary rolling member assists in moving when the clamp tray is pushed into or pulled out of the machine tool workbench.

[0031] When the clamp tray is completely pushed into the machine tool workbench, the clamp tray abuts against the auxiliary positioning mechanism.

[0032] As a preferred scheme of the present application, the piston comprises a pushing part, a pushing rod, a piston push plate and a spring, and the pushing part and the pushing rod are fixedly connected.

[0033] The pushing part is matched with the shape of the installation cavity, and a sealing ring is arranged between the pushing part and the inner wall of the installation cavity.

[0034] The piston push plate is sleeved on the pushing rod, and the piston cover plate is fixed in the installation cavity.

[0035] The spring is connected between the pushing part and the piston push plate and provides elastic force for relatively moving away between the pushing part and the piston push plate.

[0036] As a preferred scheme of the present application, the air hole comprises a first air hole arranged on the inner bottom wall of the installation cavity.

[0037] As a preferred scheme of the present application, the air hole further comprises a second air hole, and the second air hole is arranged on the inner side wall of the installation cavity and is located between the pushing part and the piston push plate.

[0038] As a preferred scheme of the present application, it further comprises a guide member.

[0039] The guide member is arranged between the zero point base plate and the zero point pull plate and guides the zero point pull plate to move up and down.

[0040] Via the technical scheme, compared with the prior art, the present application has the following beneficial technical effects:

[0041] 1、The present application can realize the mutual control of the in-machine clamp tray and the feeding machine, adopt the switching feeding and discharging function, reduce the CNC equipment downtime, reduce the labor intensity of the operator, optimize the debugging time of switching products, solve the complex phenomenon of small batch and multi-specification debugging, compact structure, simple and convenient to use;

[0042] 2、The present application can realize the rapid positioning and locking of the clamp tray after replacement, and the structure is compact; A piston is arranged in the zero point base plate, the piston moves the zero point pull plate up and down, thereby driving the clamp tray to move up and down, after the zero point pull plate moves up, the clamp tray can be normally pushed from the first heavy load guide rail to the machine tool workbench, and the clamp tray can be pushed from the machine tool workbench to the first heavy load guide rail, facilitating the rapid replacement of the clamp tray; and after the zero point pull plate moves down, the clamp tray can be driven to move down and be locked, and the locking action is quickly completed;

[0043] 3、The present application is provided with a protective baffle on both sides of the clamp tray, which can prevent iron filings, waste residues and the like from entering the CNC machine zero point positioning mechanism.

[0044] The remaining beneficial technical effects of the present application are embodied in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only embodiments of the present application, and those skilled in the art can obtain other drawings according to the provided drawings without creating any creative labor.

[0046] Figure 1 It is a schematic diagram of the CNC machine of the present application for rapid feeding and positioning;

[0047] Figure 2 It is a structural schematic diagram of the CNC machine of the present application for rapid feeding and positioning without the cabinet;

[0048] Figure 3 It is a front view schematic diagram of the clamp tray in the CNC machine of the present application for rapid feeding and positioning;

[0049] Figure 4 It is a schematic diagram of the second heavy load guide rail installed in the heavy load support in the CNC machine of the present application for rapid feeding and positioning;

[0050] Figure 5 It is a structural schematic diagram of the guide rail support and auxiliary roller in the CNC machine of the present application for rapid feeding and positioning.

[0051] Figure 6 Schematic diagram of the quick positioning mechanism in the CNC machine of the present application for quick feeding and positioning;

[0052] Figure 7 Front view schematic diagram of the quick positioning mechanism in the CNC machine of the present application for quick feeding and positioning;

[0053] Figure 8 Exploded view of the quick positioning mechanism in the CNC machine of the present application for quick feeding and positioning;

[0054] Figure 9 Further exploded view of the quick positioning mechanism in the CNC machine of the present application for quick feeding and positioning;

[0055] Figure 10 is Figure 9 Enlarged view of position A in the above figure;

[0056] Figure 11 Exploded view of the piston in the CNC machine of the present application for quick feeding and positioning.

[0057] Explanation of reference numerals:

[0058] CNC device 00; machine tool workbench 01; cabinet 02; first heavy load guide rail 100; guide rail support 110; auxiliary roller 120; second heavy load guide rail 200; first second heavy load guide rail 200A; second second heavy load guide rail 200B; limiting assembly 210; clamp tray 300; first clamping surface 301; second clamping surface 302; supporting plate 310; limiting block 320; protective baffle 330; first clamp tray 300A; second clamp tray 300B; heavy load support 400; tray carrier plate 410; track 500; support 510; first driving device 600; sliding rail 610; sliding plate 620; driving cylinder 630; cylinder guide rod 631; dragging carrier disc 640; second driving device 520; zero point base plate 700; mounting cavity 710; first air hole 711; second air hole 712; guide piece 720; piston 800; groove body 801; pushing part 810; sealing ring 811; pushing rod 820; piston push plate 830; spring 840; zero point pull plate 900; third clamping surface 901; fourth clamping surface 902; auxiliary rolling piece 910; roller support 911; roller 912; cavity position 920. DETAILED DESCRIPTION

[0059] The present application will now be further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams and only show the basic structure of the present application in a schematic manner, and thus only show the components related to the present application.

[0060] CNC machine for quick feeding and positioning, please refer to Figure 1The CNC equipment 00 shown has a machine tool worktable 01; the specific model of the CNC equipment 00 is not limited. The CNC equipment 00 should be equipped with a corresponding machining robot capable of performing corresponding machining on the products on the machine tool worktable 01.

[0061] It should be noted that the fixture used on the machine tool worktable 01 should have a different structure when processing products of different specifications / types. When a CNC machine processes products of different specifications / types, the fixture should be changed. The fixture is heavy and bulky, making it inconvenient to change, and the change process is cumbersome.

[0062] Furthermore, when processing products of the same specifications / types, some products are heavy and inconvenient to change manually, requiring the use of a multi-axis robot for loading and unloading. If loading and unloading are performed directly on the machine tool worktable 01, the CNC equipment 00 will have a long downtime, and the multi-axis robot is large in size and occupies a large area, making it very inconvenient to use.

[0063] Furthermore, during use, whether it is to change the fixture to process different models of products, or to load or unload processed and unprocessed products, the fixture needs to be removed from the machine tool worktable 01 as a whole. After removing and placing the fixture, it needs to be accurately positioned again to facilitate subsequent precise processing.

[0064] Therefore, in order to overcome these problems, the following CNC machine for rapid loading and positioning was proposed.

[0065] A CNC machine with rapid loading and positioning, the CNC machine is equipped with a machine tool worktable, and also includes a rapid loading mechanism and a rapid positioning mechanism.

[0066] like Figures 1-5 As shown, the rapid feeding mechanism includes:

[0067] The first heavy-duty guide rail 100 is installed on the side of the machine tool worktable 01;

[0068] At least one second heavy-duty guide rail 200 is movable to a first position that is in the same straight line as the first heavy-duty guide rail 100, and movable to a second position that is not in the same straight line as the first heavy-duty guide rail 100;

[0069] The fixture tray 300 is limited and installed at the second heavy-duty guide rail 200. When the second heavy-duty guide rail 200 moves to the first position, the fixture tray 300 can move along the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200 to be pushed into the machine tool worktable or pulled out from the machine tool worktable.

[0070] like Figure 1As shown, the CNC equipment 00 has a cabinet 02, which mainly plays a protective role. The machine tool workbench 01 is located in the cabinet 02. The first heavy load guide rail 100 is installed beside the machine tool workbench 01, mainly guiding the clamp tray 300 to move to the machine tool workbench 01. Continue as Figure 1 As shown, the cabinet 02 is provided with a cabinet opening. Then the first heavy load guide rail 100 is connected between the machine tool workbench 01 and the cabinet opening.

[0071] It is worth noting that in some embodiments, the CNC equipment may not have a cabinet 02. It may only have a device rack as a carrier. The machine tool workbench 01 is provided on the large panel of the device rack. Then the first heavy load guide rail 100 can be installed on the large panel.

[0072] Further, the second heavy load guide rail 200 is movably arranged, and the moving direction is perpendicular to the direction in which the clamp tray 300 pushes / pulls out of the machine tool workbench 01, as Figure 1 As shown, the direction in which the clamp tray 300 pushes / pulls out of the machine tool workbench 01 is the X direction. The moving direction of the second heavy load guide rail 200 switching between the first position and the second position is the Y direction.

[0073] As shown in Figures 1-2 The second heavy load guide rail 200 is provided in this embodiment. The clamp tray 300 is installed on the second heavy load guide rail 200. When in use:

[0074] As shown in Figure 2 The first second heavy load guide rail 200A corresponds to the first heavy load guide rail 100, that is, in the first position, the first clamp tray 300A installed on the first second heavy load guide rail 200A moves along the first second heavy load guide rail 200A and the first heavy load guide rail 100, and moves to the work station 01. The second second heavy load guide rail 200B is staggered with the first heavy load guide rail 100, that is, in the second position, the second second heavy load guide rail 200B also has the second clamp tray 300B.

[0075] After the product on the first clamp tray 300A is processed, the first clamp tray 300A is pulled out along the X direction, pulled out along the first heavy load guide rail 100 to the first second heavy load guide rail 200A, and then the first second heavy load guide rail 200A moves along the Y direction and moves to the second position.

[0076] Then, the second second heavy load guide rail 200B moves along the Y direction and moves to the first position. After that, the second clamp tray 300B moves along the second second heavy load guide rail 200B and the first heavy load guide rail 100, and is finally pushed into the machine tool workbench 01 to wait for processing.

[0077] The first clamp tray 300A on the first second heavy load guide rail 200A can replace the product, remove the finished product, and replace the unprocessed product.

[0078] Through the multi-station CNC feeding mechanism, rapid feeding can be realized, the operation is simple, and the downtime is short.

[0079] It should be noted that, Figures 1-2 In the clamp tray 300, no specific clamp / mold is installed, and according to different product specifications, the corresponding clamp / mold is set on the clamp tray 300, so that the product can be stably installed.

[0080] Further, in the embodiment, the CNC equipment 00 has a machine tool workbench 01, and the machine tool workbench 01 is provided with two second heavy load guide rails 200 and clamp trays 300.

[0081] Optionally, the number of machine tool workbenches 01 of the CNC equipment 00 can be increased, and the number of second heavy load guide rails 200 and clamp trays 300 can also be increased, which is suitable for multi-station CNC equipment.

[0082] In one embodiment, it further comprises a heavy load support 400; the second heavy load guide rail 200 is installed on the heavy load support 400.

[0083] As shown in Figure 2 The heavy load support 400 at least has a tray carrier plate 410 for installing the second heavy load guide rail 200, and the tray carrier plate 410 mainly plays a bearing role, and its specific shape and structure are not limited.

[0084] Further, it further comprises a track 500.

[0085] The heavy load support 400 is installed on the track 500, and the heavy load support 400 moves along the track 500 to switch the second heavy load guide rail 200 between the first position and the second position.

[0086] The extension direction of the track 500 is the Y direction as shown in Figure 1 and Figure 2 Coordinate, and the specific structure of the track 500 can adopt the common structures such as guide rod, sliding rail, Y track and the like in the prior art.

[0087] If the CNC equipment 00 has a cabinet 02, the track 500 can be installed at the cabinet 02, but located outside the protection space of the cabinet 02.

[0088] Alternatively, as shown in Figure 2As shown, the support 510 can be installed on the cabinet 02, such as being fixed to the outer wall of the cabinet 02; or alternatively, the support 510 can be a floor support which is arranged side by side in front of the cabinet 02, and the rail 500 is installed on the support 510.

[0089] Further, a positioning structure can be added between the CNC equipment to prevent the support 510 from moving during operation, and to ensure that the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200 are correctly connected.

[0090] Further, a limiting structure should be provided between the heavy-duty support 400 and the rail 500 or between the heavy-duty support 400 and the support 510, so that the second heavy-duty guide rail 200 can be positioned when it moves to the first position, and is connected to the first heavy-duty guide rail 100 without the need for manual position correction, making the operation simpler.

[0091] For example, a baffle A can be provided on the support 510, and the baffle A is also located at the first position; the heavy-duty support 400 is installed on the rail 500 of the support 510, and a baffle B is provided on the heavy-duty support 400, the baffle B can move up and down in the longitudinal direction, and the baffle B is in the same straight line as the baffle A in the initial state. When the heavy-duty support 400 drives the second heavy-duty guide rail 200 to move to the first position, the baffle B and the baffle A abut each other, so that the second heavy-duty guide rail 200 is positioned at the first position.

[0092] After the clamp tray 300 is pushed into the machine tool workbench 01 or pulled out from the machine tool workbench 01 to the second heavy-duty guide rail 200, the baffle B is moved downward or upward to be offset from the baffle A, and the heavy-duty support 400 continues to move in the same direction along the rail 500; the next second heavy-duty guide rail 200 can be moved to the first position under the driving of the heavy-duty support 400.

[0093] As shown, Figure 2 In the embodiment, each second heavy-duty guide rail 200 has an independent heavy-duty support 400, and in other embodiments, multiple second heavy-duty guide rails 200 can be arranged in the Y direction and installed on one heavy-duty support 400.

[0094] In one embodiment, as shown, Figure 5 The first heavy-duty guide rail 100 and the second heavy-duty guide rail 200 each include a guide rail support 110 and a plurality of auxiliary rollers 120 arranged in a straight line on the guide rail support 110, the auxiliary rollers 120 are in contact with the clamp tray 300 and assist the movement of the clamp tray 300; or,

[0095] The first heavy-duty guide rail 100 and the second heavy-duty guide rail 200 both include: a guide rail bracket 110 and a plurality of auxiliary rolling bearings arranged in a straight line at the guide rail bracket 110. The auxiliary rolling bearings contact the clamp tray 300 and assist the clamp tray 300 in moving.

[0096] The guide rail bracket 110 is mainly for mounting the auxiliary rollers 120. Multiple auxiliary rollers 120 are rotatably mounted on the guide rail bracket 110 with the horizontal axis as the axis.

[0097] The guide rail bracket 110 mainly serves as a carrier, and its specific shape is not limited, while the number of auxiliary rollers 120 is set according to the distance that the fixture tray 300 needs to move.

[0098] Furthermore, the guide rail brackets 110 are symmetrically arranged, and multiple auxiliary rollers 120 or auxiliary rolling bearings arranged in a straight line are respectively provided on the two guide rail brackets 110.

[0099] In one embodiment, the clamping tray 300 moves on the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200, which can be manual or automated.

[0100] In manual movement, the worker can simply push the fixture tray 300 along the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200.

[0101] The automated drive method can be to set a first drive device at the heavy-duty bracket 400, and push the fixture tray 300 to the first heavy-duty guide rail 100 through the first drive device; or a first drive device can also be set in the cabinet 02 corresponding to the first heavy-duty guide rail 100, and push the fixture tray 300 from the first heavy-duty guide rail 100 to the machine tool worktable 01.

[0102] It could also be that a first drive device is installed at the heavy-duty bracket 400. The first drive device is a two-stage drive that can push the fixture tray 300 from the second heavy-duty guide rail 200 to the first heavy-duty guide rail 100, and then from the first heavy-duty guide rail 100 to the machine tool worktable 01.

[0103] Furthermore, such as Figure 4 As shown, the first driving device 600 includes:

[0104] The slide rail 610 is mounted on the heavy-duty bracket 400 and is parallel to the second heavy-duty guide rail 200.

[0105] The slide plate 620 is mounted on the slide rail 610 and moves along the slide rail 610 under the drive of the drive component;

[0106] A drive cylinder 630 is mounted on a slide plate 620. The drive cylinder has a cylinder guide rod 631, which is parallel to the second heavy-duty guide rail 200.

[0107] The drag plate 640 is mounted on the cylinder guide rod 631 and is driven by the drive cylinder to move linearly.

[0108] Continue as Figure 4 As shown, during use, the fixture tray 300 is supported on the second heavy-duty guide rail 200, and the drag plate 640 abuts against one side of the fixture tray 300. During operation, the slide plate 620 moves along the slide rail 610 under the drive of the drive unit, and the fixture tray 300 moves along the second heavy-duty guide rail 200, moving the fixture tray 300 to the first heavy-duty guide rail 100. At the same time, the slide plate 620 also moves to the position of the first heavy-duty guide rail 100. Then, the drive cylinder 630 drives the drag plate 640 to move along the cylinder guide rod 631, so that the fixture tray 300 is pushed from the first heavy-duty guide rail 100 to the machine tool worktable 01. After the fixture tray 300 is driven to the machine tool worktable 01, the first drive device 600 is reset.

[0109] The above structure can automatically push the fixture tray 300 to the machine tool worktable 01.

[0110] In one embodiment, it further includes: a second driving device 520; the second driving device 520 drives the heavy-duty bracket 400 to move linearly back and forth along the track 500, and the second driving device 520 can be a driving cylinder, which is installed at the bracket 510.

[0111] In one implementation, such as Figure 3 As shown, the clamping tray 300 includes a tray 310 and a limiting block 320. A first clamping surface 301 and a second clamping surface 302 are formed on the corresponding side of the limiting block 320, and a space is formed between the first clamping surface 301 and the second clamping surface 302. When the clamping tray 300 moves to the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200, the first clamping surface 301 and the second clamping surface 302 interfere with the guide rail bracket 110 respectively, and the clamping tray 300 cannot move in a direction perpendicular to the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200, i.e., the Y direction.

[0112] In one embodiment, the system further includes a limiting component 210, wherein the second end of the second heavy-duty guide rail 200 is connected to the first heavy-duty guide rail 100, and the limiting component 210 is located at the first end of the second heavy-duty guide rail 200 to prevent the clamp tray 300 from disengaging from the first end of the second heavy-duty guide rail. Specifically, the limiting component 210 may be a stop provided at the first end of the guide rail bracket 110; or a stop provided at the heavy-duty bracket 400, the stop abutting against the side of the clamp tray 300.

[0113] As Figures 6-11 shown, the quick positioning mechanism comprises:

[0114] A zero point base plate 700 is installed at the machine tool worktable 01, and a plurality of installation cavities 710 are arranged on the zero point base plate 700, and air holes communicating with air passages are arranged in the installation cavities 710;

[0115] A piston 800 is installed in the installation cavity 710 of the zero point base plate 700, and the air passage blows air into the installation cavity 710 through the air hole to drive the piston 800 to move up and down in the installation cavity 710;

[0116] A zero point pull plate 900 is limitingly installed above the zero point base plate 700 and is driven to move up and down by the piston 800;

[0117] A clamp tray 300 is pushed and pulled into or pulled out of the machine tool worktable 01, and after the clamp tray 300 is pushed into the machine tool worktable 01, the clamp tray 300 is connected with the zero point pull plate 900, so that the clamp tray 300 moves up and down with the zero point pull plate 900.

[0118] The machine tool worktable 01 is installed inside the CNC equipment 00, as Figure 1 shown, the machine tool worktable 01 is mainly used for carrying the zero point base plate 700, and in the embodiment, the machine tool worktable 01 is a plate-shaped structure.

[0119] The zero point base plate 700 is installed at the machine tool worktable 01, and the installation cavity 710 is opened from the upper surface of the zero point base plate 700, but does not penetrate the lower surface of the zero point base plate 700;

[0120] The piston 800 is movably installed in the installation cavity 710, and the upper surface of the piston 800 is in contact with the lower surface of the zero point pull plate 900, and the piston 800 drives the zero point pull plate 900 to move up and down.

[0121] The upper surface of the piston 800 and the zero point pull plate 900 can be in contact by relying on the gravity of the zero point pull plate 900, or the piston 800 is locked between the upper surface and the zero point pull plate 900 by a pin;

[0122] The guide 720 between the zero point base plate 700 and the zero point pull plate 900 assists in guiding the zero point pull plate 900 to move up and down.

[0123] As Figure 8 shown, the guide 720 can be a short guide rod arranged between the zero point base plate 700 and the zero point pull plate 900.

[0124] Further, the air passage can be connected to a blowing device, and the blowing device blows air into the installation cavity 710 through the air passage and the air hole.

[0125] Further, the fixture tray 300 is pushed into the machine tool worktable 01, and the fixture tray 300 is limited in the longitudinal direction with the zero-point pull plate 900;

[0126] In use, when the fixture tray 300 is pushed into or pulled out of the machine tool worktable 01, the piston 800 is moved upward to lift the zero-point pull plate 900; the fixture tray 300 can be smoothly pushed in or pulled out; after the fixture tray 300 is installed above the zero-point pull plate 900, when the machining manipulator in the CNC equipment 00 processes the product on the fixture tray 300, the piston 800 is moved downward to drive the zero-point pull plate 900 to move downward, and at the same time, due to the limitation of the fixture tray 300 and the zero-point pull plate 900 in the longitudinal direction, the zero-point pull plate 900 drives the fixture tray 300 to move downward and locks the fixture tray 300, thereby playing a positioning role; at the same time, it prevents the fixture tray 300 from moving during processing.

[0127] In one embodiment, as shown in Figures 6-8 The fixture tray 300 includes a base plate 310 and a limiting block 320, the limiting block 320 is symmetrically installed on both sides of the lower surface of the base plate 310, and a space for embedding the zero-point pull plate 900 is formed between the two limiting blocks 320; when the fixture tray 300 is pushed into the machine tool worktable 01, the zero-point pull plate 900 is correspondingly embedded in the space between the two limiting blocks 320, so that the fixture tray 300 and the zero-point pull plate 900 are limited in the horizontal direction, as shown in Figure 7 That is, the fixture tray 300 cannot move horizontally left and right on the zero-point pull plate 900;

[0128] Continuing as shown in Figure 7 The corresponding side surfaces of the two limiting blocks 320 are provided with stepped first clamping surfaces 301 and second clamping surfaces 302; the two sides of the zero-point pull plate 900 are provided with third clamping surfaces 901 and fourth clamping surfaces 902, which are inversely stepped, so that the fixture tray 300 and the zero-point pull plate 900 are limited in the longitudinal direction, that is, the third clamping surfaces 901 and the fourth clamping surfaces 902 on both sides of the zero-point pull plate 900 are correspondingly locally pressed at the first clamping surfaces 301 and the second clamping surfaces 302 of the fixture tray 300, thereby locking the fixture tray 300, and the fixture tray 300 cannot be separated upward from the zero-point pull plate 900.

[0129] The base plate 310 and the limiting block 320 can be an integral structure or a split structure.

[0130] Further, the side surfaces of the two limiting blocks 320 away from each other are provided with protective baffles 330, which shield the gap between the limiting block 320 and the zero-point base plate 700; as Figure 7As shown, during the processing, the iron filings, waste residues and the like cannot enter the inside of the zero point positioning mechanism of the CNC machine due to the shielding of the protective baffle 330, so as to prevent the iron filings, waste residues and the like from affecting the operation of the zero point positioning mechanism of the CNC machine.

[0131] The clamp tray 300 should also be provided with clamps / molds and the like, so as to facilitate clamping or positioning and installation of products, and facilitate subsequent processing; in the embodiment, the clamps / molds on the clamp tray 300 are not drawn, and should be set according to the specific type of the CNC equipment 00; the clamps / molds and the like are fixed on the clamp tray 300 and move with the clamp tray 300;

[0132] In addition, the size of the clamp tray 300 is set according to actual use requirements, such as Figures 6-9 In the embodiment, the length of the clamp tray 300 in the Y direction is less than the width in the X direction; and when applied to the CNC equipment 00, as shown in Figure 1 The length of the clamp tray 300 in the Y direction is greater than the width in the X direction; the length and the width of the clamp tray 300 can be set as needed. Figures 7-8

[0133] In one embodiment, as shown in Figure 8 and Figure 9 It further includes an auxiliary rolling member 910.

[0134] The auxiliary rolling member 910 is exposed on the upper surface of the zero point pull plate 900, and is used to assist the movement of the clamp tray 300 when the clamp tray 300 is pushed into or pulled out of the machine tool workbench 01.

[0135] As shown in Figure 9 The auxiliary rolling member 910 includes a roller bracket 911 and a roller 912, the roller 912 is installed on the roller bracket 911 with a horizontal shaft and can rotate, and the side surface of the roller 912 can be in contact with the lower surface of the clamp tray 300.

[0136] The zero point pull plate 900 is provided with a cavity position 920 for assembling the auxiliary rolling member 910, the cavity position 920 is opened from the upper surface of the zero point pull plate 900 but does not penetrate the lower surface of the zero point pull plate 900; the roller bracket 911 is fixedly installed in the cavity position 920.

[0137] The auxiliary rolling member 910 is provided with a plurality of auxiliary rolling members, which are distributed in a straight line along the movement direction of the clamp tray 300 on the zero point pull plate 900.

[0138] In one embodiment, it further includes an auxiliary positioning mechanism.

[0139] When the clamp tray 300 is completely pushed into the machine tool workbench 01, it abuts against the auxiliary positioning mechanism.

[0140] ​The auxiliary positioning mechanism can be a baffle, a block, or the like, which can play a blocking role.

[0141] The auxiliary positioning mechanism can be installed inside the zero-point substrate 700, the zero-point pull plate 900, the machine tool workbench 01, or the CNC device 00.

[0142] In an embodiment, the piston 800 includes a pushing part 810, a pushing rod 820, a piston push plate 830, and a spring 840, and the pushing part 810 and the pushing rod 820 are fixedly connected.

[0143] The pushing part 810 is shaped to fit the installation cavity 710, and a sealing ring 811 is arranged between the pushing part 810 and the inner wall of the installation cavity 710.

[0144] The piston push plate 830 is sleeved on the pushing rod 820 and fixed in the installation cavity 710. The piston push plate 830 is annular, the pushing rod 820 can be pushed out from the center of the piston push plate 830 and locked with the zero-point pull plate 900 through a screw.

[0145] The spring 840 is connected between the pushing part 810 and the piston push plate 830 and provides a spring force for relative separation therebetween.

[0146] Specifically, the installation cavity 710 is formed in a cylindrical shape, the pushing part 810 is shaped as a disc, the pushing rod 820 is arranged at the center position of the pushing part 810, and the pushing rod 820 can be integrally formed with the pushing part 810 or fixedly connected therewith. The piston push plate 830 is annular and sleeved on the pushing rod 820.

[0147] The spring 840 is arranged in multiple numbers, which are arranged in a circumferential direction around the pushing rod 820, and the upper surface of the pushing part 810 and the lower surface of the piston push plate 830 are respectively provided with groove bodies 801 for embedding the spring 840.

[0148] A sealing ring is also arranged between the pushing rod 820 and the piston push plate 830 to prevent air leakage from the center of the piston push plate 830.

[0149] Further, the air hole includes a first air hole 711 arranged on the inner bottom wall of the installation cavity 710. When the air blowing device blows air through the first air hole 711, the gas will not leak under the action of the first sealing ring 811, so that the air pressure between the inner bottom wall of the installation cavity 710 and the lower surface of the pushing part 810 increases, driving the pushing part 810 to move upward in the installation cavity 710, and the pushing rod 820 moves upward to drive the zero-point pull plate 900 to move upward.

[0150] After the first air hole 711 is disconnected, the zero-point pull plate 900 moves downward under the gravity and the gravity of the clamp tray 300, and the pushing part 810 moves downward, and the zero-point pull plate 900 pulls and locks the clamp tray 300 downward.

[0151] In addition, after the pusher 810 moves upward in the mounting cavity 710, the spring 840 is compressed. Therefore, after the first air hole 711 is cut off, the spring 840 provides a downward force, that is, a pulling force that pulls the pusher 810 downward, that is, pulls the zero-point pull plate 900 downward.

[0152] Furthermore, the vent also includes a second vent 712; the second vent 712 is formed on the inner wall of the mounting cavity 710 and is located between the pushing part 810 and the piston push plate 830;

[0153] In use, the first air hole 711 is cut off, while the second air hole 712 is inlet. The air pressure between the pusher 810 and the piston push plate 830 increases. Since the piston push plate 830 is fixed, the air pressure drives the pusher 810 to move downward. Since the zero-point pull plate 900 and the push rod 820 are locked by screws, the zero-point pull plate 900 is pulled downward, pulling the clamp tray 300 downward and locking it.

[0154] like Figure 2 As shown, in the CNC equipment 00, the CNC in-machine zero-point positioning mechanism is used in conjunction with the multi-station CNC loading mechanism. The multi-station CNC loading mechanism has a first heavy-duty guide rail 100 and a second heavy-duty guide rail 200. The second heavy-duty guide rail 200 can be moved to a first position that is on the same straight line as the first heavy-duty guide rail 100, and can be moved to a second position that is not on the same straight line as the first heavy-duty guide rail 100. When the second heavy-duty guide rail 200 is moved to the first position, the fixture tray 300 can be moved along the first heavy-duty guide rail 100 and the second heavy-duty guide rail 200 to be pushed into or pulled out of the machine tool worktable 01.

[0155] Therefore, during the process of pushing the fixture tray 300 into or pulling out of the machine tool worktable 01, the zero-point pull plate 900 needs to be pushed upward by the push rod 820 to make the zero-point pull plate 900 and the fixture tray 300 align. During the process of pushing the fixture tray 300 into the machine tool worktable 01, the zero-point pull plate 900 can be embedded in the space between the two limiting blocks 320 of the fixture tray 300. During the process of pulling the fixture tray 300 out of the machine tool worktable 01, the fixture tray 300 can... It can be smoothly pushed to the first heavy-duty guide rail 100 and moved along the first heavy-duty guide rail 100 to the second heavy-duty guide rail 200; otherwise, if the push rod 820 does not push the zero-point pull plate 900 upward, when the fixture tray 300 is pushed into the machine tool worktable 01, the fixture tray 300 and the zero-point pull plate 900 will collide and cannot be pushed in smoothly, and when the fixture tray 300 is pulled out of the machine tool worktable 01, the fixture tray 300 and the first heavy-duty guide rail 100 will collide and cannot be pulled out smoothly.

[0156] After the fixture tray 300 is pushed into the machine tool worktable 01 from the first heavy-duty guide rail 100, the push rod 820 pulls the zero-point pull plate 900 downward, and the fixture tray 300 is moved downward and locked through the zero-point pull plate 900.

[0157] The specific use of this invention is further explained below:

[0158] like Figure 2 As shown, Figure 2 Server rack 02 was hidden inside. Figure 2 In the process, the first fixture tray 300A has been installed on the machine tool worktable 01, indicating that the product on the first fixture tray 300A has been processed (the product and the fixture / mold used to position the product are not yet shown in the drawing), and it is waiting to remove the first fixture tray 300A and replace it with the second fixture tray 300B and place it on the machine tool worktable 01.

[0159] When in use, move the first second heavy-duty guide rail 200A to the first position, so that it is in the same straight line as the first heavy-duty guide rail 100;

[0160] The air blowing device blows air into the mounting cavity 710, causing the push rod 820 to push the zero-point pull plate 900 upward, and simultaneously pushing the first clamping tray 300A upward, so that the first clamping tray 300A and the first heavy-duty guide rail 100 are aligned in the longitudinal direction; the first clamping tray 300A is manually pulled out, first pulled from the machine tool worktable 01 to the first heavy-duty guide rail 100, and then moved from the first heavy-duty guide rail 100 to the first second heavy-duty guide rail 200A; finally, the first second heavy-duty guide rail 200A is as follows. Figure 2 The coordinates indicate that the device moves to the right in the Y direction and then to the second position.

[0161] Next, the second heavy-duty guide rail 200B, as shown... Figure 2 As shown in the coordinate system, the device moves to the right in the Y direction and moves to the first position, where the second heavy-duty guide rail 200B corresponds to the first heavy-duty guide rail 100. Then, the second clamping tray 300B is manually pushed towards the first heavy-duty guide rail 100. At this time, the air blowing device blows air into the mounting cavity 710, causing the push rod 820 to push the zero-point pull plate 900 upward. Then, the zero-point pull plate 900 and the second clamping tray 300B are aligned, and force is applied to push the second clamping tray 300B further. When the product is placed on the machine tool worktable 01, the zero-point pull plate 900 is embedded in the space formed by the two limit blocks 320. Finally, the air source of the first air hole 711 is cut off, and the push rod 820 moves down under the weight of the zero-point pull plate 900, the second fixture tray 300B, and the product. Alternatively, when air is blown into the second air hole 712, the push rod 820 is pushed down to pull the zero-point pull plate 900 down, and the second fixture tray 300B is pulled down and locked by the zero-point pull plate 900.

[0162] Through the above, the rapid replacement of the feeding and the rapid positioning can be realized.

[0163] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A CNC machine for rapid material loading and positioning, wherein the CNC machine is equipped with a machine tool worktable, characterized in that: Also includes: Rapid feeding mechanism, rapid positioning mechanism, heavy-duty support frame and track, The rapid feeding mechanism includes: The first heavy-duty guide rail is installed on the side of the machine tool worktable; At least one second heavy-duty guide rail is movable to a first position that is in the same straight line as the first heavy-duty guide rail, and movable to a second position that is not in the same straight line as the first heavy-duty guide rail; The fixture tray is limited and installed at the second heavy-duty guide rail. When the second heavy-duty guide rail moves to the first position, the fixture tray can move along the first heavy-duty guide rail and the second heavy-duty guide rail to be pushed into the machine tool table or pulled out from the machine tool table. A first driving device and a second driving device are provided. The heavy-duty support is mounted on a track, and the second heavy-duty guide rail is mounted on the heavy-duty support. The heavy-duty support moves along the track, causing the second heavy-duty guide rail to switch between a first position and a second position. The first driving device drives the clamp tray to move along the second heavy-duty guide rail. The second driving device drives the heavy-duty support to reciprocate linearly along the track. The first driving device includes: The slide rail is mounted on the heavy-duty bracket and is parallel to the second heavy-duty guide rail. A skateboard is mounted on a slide rail and moves along the slide rail under the drive of a drive unit; A drive cylinder is mounted on the slide plate. The drive cylinder has a cylinder guide rod, which is parallel to the second heavy-duty guide rail. The drag plate is mounted on the cylinder guide rod and moved linearly by the drive cylinder. The rapid positioning mechanism includes: The zero-point substrate is mounted on the machine tool table. The zero-point substrate has multiple mounting cavities, and the mounting cavities are provided with air holes that connect to the air passage. The piston is installed in the mounting cavity of the zero-point substrate. Air is blown into the mounting cavity through the air hole to drive the piston to move up and down in the mounting cavity. The zero-point pull plate is fixed above the zero-point base plate and moves up and down by a piston. After the fixture tray is pushed into the machine tool worktable, the fixture tray is connected to the zero-point pull plate, so that the fixture tray moves up and down with the zero-point pull plate; The clamping tray includes: a tray plate and a limiting block; the two limiting blocks have a stepped first clamping surface and a second clamping surface on their corresponding sides, forming a space between the first clamping surface and the second clamping surface; the zero-point pull plate has a stepped third clamping surface and a fourth clamping surface on both sides.

2. The CNC machine for rapid feeding and positioning according to claim 1, characterized in that: Both the first and second heavy-duty guide rails include: a guide rail bracket and a plurality of auxiliary rollers arranged in a straight line on the guide rail bracket. The auxiliary rollers contact the clamping tray and assist the clamping tray in moving; or... Both the first heavy-duty guide rail and the second heavy-duty guide rail include: a guide rail bracket and a plurality of auxiliary rolling bearings arranged in a straight line at the guide rail bracket. The auxiliary rolling bearings contact the clamping tray and assist the clamping tray in moving.

3. The CNC machine for rapid feeding and positioning according to claim 1, characterized in that: When the clamping tray moves to the first heavy-duty guide rail and the second heavy-duty guide rail, the first clamping surface and the second clamping surface interfere with the guide rail bracket respectively, and the clamping tray cannot move in a direction perpendicular to the first heavy-duty guide rail and the second heavy-duty guide rail. After the fixture tray is pushed into the machine tool worktable, the zero-point pull plate is correspondingly embedded in the space between the two limit blocks, so that the fixture tray and the zero-point pull plate are limited in the horizontal and vertical directions.

4. The CNC machine for rapid feeding and positioning according to any one of claims 1-3, characterized in that: Also includes: Auxiliary rolling elements and auxiliary positioning mechanisms; The auxiliary rolling element is exposed on the upper surface of the zero-point pull plate. The fixture tray moves with the assistance of the auxiliary rolling element when it is pushed into or pulled out of the machine tool table. When the fixture tray is fully pushed into the machine tool table, it comes into contact with the auxiliary positioning mechanism.

5. The CNC machine for rapid feeding and positioning according to claim 4, characterized in that: The piston includes: a pushing part, a pushing rod, a piston push plate and a spring, with the pushing part and the pushing rod fixedly connected; The shape of the pushing part is adapted to the mounting cavity, and a sealing ring is provided between the pushing part and the inner wall of the mounting cavity; The piston push plate is sleeved on the push rod and the piston cover plate is fixed in the mounting cavity; A spring connects the pusher and the piston pusher plate and provides elastic force to keep them relatively far apart.

6. The CNC machine for rapid feeding and positioning according to claim 4, characterized in that: The vent includes a first vent, which is disposed on the bottom wall of the mounting cavity.

7. The CNC machine for rapid feeding and positioning according to claim 6, characterized in that: The vent further includes a second vent; the second vent is formed on the inner side wall of the mounting cavity and is located between the pusher and the piston pusher plate.

8. The CNC machine for rapid feeding and positioning according to claim 4, characterized in that: Also includes: Guide components; The guide is positioned between the zero-point base plate and the zero-point pull plate to guide the zero-point pull plate to move up and down.

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