CN212020116U

CN212020116U - Material supporting and positioning mechanism and numerical control drilling and milling machine thereof

Info

Publication number: CN212020116U
Application number: CN202020599609.6U
Authority: CN
Inventors: 房金泉
Original assignee: Shandong Weike Cnc Machinery Co ltd
Current assignee: Shandong Weike Cnc Machinery Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-11-27
Anticipated expiration: 2030-04-20

Abstract

The utility model relates to a ask material positioning mechanism and numerical control drilling and milling machine thereof, include: the material supporting frame is provided with a positioning guide rail along the length direction; the locator, the locator sets up on the location guide rail, the locator is including setting up pull-back slide on the location guide rail, be equipped with the pull-back cylinder on the pull-back slide, be equipped with the locking handle with its locking on the pull-back slide, the pull-back cylinder is connected with the locating plate, the locating plate passes through the location slide to be installed on the location guide rail. The positioning mechanism has the advantages of reasonable structural design, high positioning precision, no abrasion of the positioning mechanism, high rotation precision, high processing quality and the like.

Description

Material supporting and positioning mechanism and numerical control drilling and milling machine thereof

The technical field is as follows:

the utility model relates to a numerical control drilling and milling machine technical field, concretely relates to ask material positioning mechanism and numerical control drilling and milling machine thereof.

Background art:

the existing doors and windows need to be provided with locks, so that corresponding lock mounting holes need to be processed on the frame aluminum profiles before the doors and windows are assembled. At present, the machining of the mounting holes of the die on the frame aluminum profile is mainly completed through a numerical control milling and drilling machine, the existing numerical control milling and drilling machine mainly comprises a rack, a three-translation mechanism arranged on the rack, a machine head arranged at the tail end of the three-translation mechanism, and an aluminum profile turnover mechanism and a material supporting mechanism matched with the aluminum profile turnover mechanism for length positioning.

The existing material supporting mechanism is provided with a movable positioning plate, an aluminum profile to be processed is arranged on the turnover mechanism when the aluminum profile supporting mechanism is used for the first time, the positioning plate is positioned well, and the purpose of quickly positioning and clamping is realized by taking the positioning plate as a reference when the aluminum profile of the model is subsequently processed. Above-mentioned setting up of holding in palm material mechanism has improved production efficiency to a certain extent, but also there is an drawback, be exactly the back that the frame aluminium alloy location is good, its tip is with the locating plate contact, consequently tilting mechanism is the friction motion for the locating plate when the upset frame aluminium alloy, this not only hinders tilting mechanism's normal upset, influence the precision of upset, but also can cause wearing and tearing to the locating plate, especially frame aluminium alloy tip is through 45 processing of beveling, the tip is very sharp-pointed, cause the wearing and tearing of locating plate very easily, go the location again after the locating plate wearing and tearing and will cause the location inaccurate, finally influence the machining precision. In addition, the existing turnover mechanism of the numerical control milling and drilling machine has the problem of low precision of the turnover angle, three mutually perpendicular surfaces of an aluminum profile frame generally need to be processed, a first processed plane is defined as a processed surface A, the processed surface A needs to be horizontally arranged during processing, the processing position at the moment is defined as an initial processing position, then the forward rotation position and the reverse rotation position of 90 degrees relative to the initial processing position are respectively defined as another two processed surfaces, namely a processed surface B and a processed surface C, the processing surfaces need to be horizontally ensured when the processed surfaces B and C are also required to be processed, but the existing turnover mechanism is influenced by a driving mechanism and connection gaps of parts, the processed surfaces are difficult to be horizontally ensured, and the processing precision is further influenced. Therefore, it is necessary to improve the existing material supporting mechanism and the turnover mechanism so as to meet the processing requirements of high precision and high quality.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

The utility model has the following contents:

the invention aims to solve the problems in the prior art and provides a workpiece turnover device and a numerical control drilling and milling machine thereof, which have the advantages of reasonable structural design, high rotation precision, high processing quality and the like.

The invention adopts the following technical scheme to realize the purpose:

a material holding and positioning mechanism comprising:

the material supporting frame is provided with a positioning guide rail along the length direction;

the locator, the locator sets up on the location guide rail, the locator is including setting up pull-back slide on the location guide rail, be equipped with the pull-back cylinder on the pull-back slide, be equipped with the locking handle with its locking on the pull-back slide, the pull-back cylinder is connected with the locating plate, the locating plate passes through the location slide to be installed on the location guide rail.

A numerical control drilling and milling machine comprises a rack, wherein a three-translation mechanism is arranged on the rack, a machine head is arranged at the tail end of the three-translation mechanism, a turnover mechanism is further arranged on the rack, an initial limiting mechanism and a forward and reverse rotation limiting mechanism which are used for accurately limiting the rotation angle of the turnover mechanism are arranged on one side of the rack, and a material supporting and positioning mechanism which is matched with the turnover mechanism to be positioned and clamped is arranged on the other side of the rack.

The turnover mechanism comprises a rotating shaft, and the rotating shaft is arranged on the rack through a bearing and a bearing seat; the rotary shaft is provided with a clamping device, one end of the rotary shaft is provided with a gear, the rack is provided with a rotary driving guide rail, the rotary driving guide rail is provided with a rack, the rack is meshed with the gear, and the rack is connected with a rotary driving cylinder arranged on the rack.

The rotary driving cylinder and the initial limiting mechanism are arranged on the same side of the rack.

The gear is installed on the rotating shaft through the expansion sleeve A.

The clamping device comprises a clamping support frame connected with the rotating shaft, two clamping seats are respectively arranged on two sides of the upper end face of the clamping support frame, the upper end face of each clamping seat is higher than the upper end face of the clamping support frame, a clamping limiting block is arranged on each clamping seat, and a clamping cylinder matched with the clamping limiting block is further arranged on each clamping seat.

The clamping support frame comprises support plates which are vertically arranged in parallel at intervals, and a plurality of connecting rods are connected between the support plates.

The initial limiting mechanism comprises a limiting driving cylinder arranged on one side of the rack, an initial limiting part A is connected to the limiting driving cylinder, an initial limiting part B matched with and limited by the initial limiting part A is arranged at one end of the rotating shaft, and the initial limiting part B and the rotating shaft rotate together.

The initial limiting piece B is installed on the rotating shaft through the expansion sleeve B.

The initial limiting part A is a vertically arranged cylindrical rod, the cylindrical rod is arranged on the guide seat, and the cylindrical rod is arranged on the vertically arranged limiting driving cylinder.

The initial limiting part B is B-shaped, a mounting hole for mounting the expansion sleeve B and an initial limiting surface for matching and limiting with the initial limiting part A are formed in the initial limiting part B, and the initial limiting surface is perpendicular to the upper end face of the clamping device.

The positive and negative rotation limiting mechanism comprises a positive and negative rotation limiting part A arranged on one side of the rack, and a positive and negative rotation limiting part B matched with the positive and negative rotation limiting part A for limiting is arranged on the clamping device.

The positive and negative rotation limiting part B is of a plate-shaped structure, the lower end face of the positive and negative rotation limiting part B is arranged to be a positive and negative rotation limiting face, the positive and negative rotation limiting part A comprises a positive and negative rotation limiting block arranged on the rack, a limiting bolt A matched with the positive and negative rotation limiting face for limiting is arranged on the front end face of the positive and negative rotation limiting block, a limiting bolt B matched with the positive and negative rotation limiting face for limiting is arranged on the rear end face, the limiting bolt A and the limiting bolt B are symmetrically arranged relative to the positive and negative rotation limiting block, and the limiting bolt A and the limiting bolt B are horizontally arranged.

Three traverse mechanism is including setting up X in the frame is to the guide rail, be equipped with X on the X to the slide to the guide rail, X passes through X to the slide and is connected with X servo motor to the lead screw, X is equipped with Y to the guide rail on to the slide, Y is equipped with Y to the slide on the Y to the guide rail, Y pass through Y to the slide to the lead screw with Y is connected to servo motor, Y is to the vertical Z to the guide rail seat that is equipped with on the slide front end, be equipped with Z to the guide rail on the Z to the guide rail seat, Z is to guide rail fixed mounting at Z to the slide, Z is to being equipped with Z to servo motor on the slide, Z passes through Z to the lead screw and is connected to Y to the slide, Z is to being equipped with.

The utility model adopts the above structure, following beneficial effect can be brought: (1) by designing the pull-back sliding seat and the pull-back air cylinder and matching with the positioning plate, the pull-back air cylinder drives the positioning plate to extend out when the positioning plate is installed and positioned, and after the positioning plate is positioned, the pull-back air cylinder acts in a recovery state, so that the positioning plate is separated from the frame aluminum profile, the positioning requirement is met, and meanwhile, the abrasion during processing is avoided; (2) by designing the initial limiting mechanism on the turnover mechanism and the rack, the corresponding processing surface A can be horizontally arranged when the workpiece is at the 0-degree position (initial position), and further the accurate processing of the processing surface A is ensured; by arranging the forward and reverse rotation limiting mechanism, the running error between each component when the workpiece rotates forward by 90 degrees and reversely by 90 degrees can be effectively eliminated, the corresponding processing surface B is horizontally arranged when the workpiece rotates forward by 90 degrees, and the corresponding processing surface C is horizontally arranged when the workpiece rotates reversely by 90 degrees, so that the accurate processing on two surfaces of the processing surface B and the processing surface C is ensured; (3) the expansion sleeve A is connected between the gear and the rotating shaft, the expansion sleeve B is connected with the initial limiting part B and the rotating shaft, synchronous rotation of the gear, the initial limiting part B and the rotating shaft is guaranteed, and rotation precision is improved.

Description of the drawings:

FIG. 1 is a schematic structural view of the material supporting and positioning mechanism of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to the present invention;

fig. 3 is a schematic structural view of the turnover device of the present invention;

FIG. 4 is an enlarged view of a portion B of FIG. 3;

FIG. 5 is a schematic structural view of the numerical control milling and drilling machine of the present invention;

FIG. 6 is a schematic view of another view angle structure of the numerical control milling and drilling machine of the present invention;

in the figure, 1, a material supporting frame, 2, a positioning guide rail, 3, a positioner, 301, a pullback sliding seat, 302, a pullback air cylinder, 303, a locking handle, 304, a positioning plate, 305, a positioning sliding seat, 4, a frame, 5, a three-translation mechanism, 501, an X-direction guide rail, 502, an X-direction sliding seat, 503, an X-direction lead screw, 504, an X-direction servo motor, 505, a Y-direction guide rail, 506, a Y-direction sliding seat, 507, a Y-direction lead screw, 508, a Y-direction servo motor, 509, a Z-direction guide rail seat, 510, a Z-direction guide rail, 511, a Z-direction sliding seat, 512, a Z-direction servo motor, 513, a Z-direction lead screw, 6, a machine head, 7, a turnover mechanism, a rotating shaft, 702, a bearing, 703, a bearing seat, 704, a clamping device, 7041, a clamping support frame, 7042, a clamping seat, 7043, a clamping limiting block, 7044, a clamping air cylinder, 7045, a, The device comprises a rotary driving cylinder, 8, an initial limiting mechanism, 801, a limiting driving cylinder, 802, initial limiting pieces A, 803, initial limiting pieces B, 8031, mounting holes, 8032, initial limiting faces, 804, a guide seat, 9, a forward and reverse rotation limiting mechanism, 901, forward and reverse rotation limiting pieces A, 9011, forward and reverse rotation limiting pieces, 9012, limiting bolts A, 9013, limiting bolts B, 902, forward and reverse rotation limiting pieces B, 10, expansion sleeves A, 11 and expansion sleeves B.

The specific implementation mode is as follows:

in order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

Furthermore, the terms "upper", "side", "lower", "a", "B", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.

In the present invention, unless otherwise expressly stated or limited, the terms "provided", "disposed", "communicated", "connected", and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It should be noted that, the control system of the numerical control milling and drilling machine belongs to the prior art, and is available by direct purchase, and the control system is not improved in the present application, so the detailed description thereof is not provided in the present application.

As shown in fig. 1-6, a material holding and positioning mechanism comprises:

the device comprises a material supporting frame 1, wherein a positioning guide rail 2 is arranged on the material supporting frame 1 along the length direction of the material supporting frame;

locator 3, locator 3 sets up on the positioning guide 2, the locator is including setting up pull-back slide 301 on the positioning guide 2, be equipped with pull-back cylinder 302 on the pull-back slide 301, be equipped with the locking handle 303 with its locking on the pull-back slide 302, pull-back cylinder 302 is connected with locating plate 304, locating plate 304 is installed through location slide 305 on the positioning guide 2. Through design pull-back slide 301 and pull-back cylinder 302, and with locating plate 304 cooperation, realize when the installation location pull-back cylinder 302 drive locating plate 304 and stretch out and carry out the accurate positioning, after good the location, pull-back cylinder 302 action is in the recovery state, and then makes locating plate 304 and frame aluminium alloy break away from, has both satisfied the demand of location, avoids adding the wearing and tearing man-hour again simultaneously.

A numerical control drilling and milling machine comprises a rack 4, wherein a three-translation mechanism 5 is arranged on the rack 4, a machine head 6 is arranged at the tail end of the three-translation mechanism 5, a turnover mechanism 7 is further arranged on the rack 4, an initial limiting mechanism 8 and a forward and reverse limiting mechanism 9 which are used for accurately limiting the rotation angle of the turnover mechanism 7 are arranged on one side of the rack 4, and a material supporting and positioning mechanism which is matched with the turnover mechanism 7 to position and clamp the turnover mechanism is arranged on the other side of the rack 4. By designing the initial limiting mechanism 8 on the turnover mechanism 7 and the rack 4, the corresponding processing surface A can be horizontally arranged when the workpiece is at the 0-degree position (initial position), and further the accurate processing of the processing surface A is ensured; through setting up positive and negative rotation stop gear 9, can effectively eliminate the error of operation between each part when work piece forward rotation 90 and reverse rotation 90, guarantee that the machined surface B that the work piece corresponds when the 90 positions of forward rotation is the level setting, the machined surface C that corresponds when the 90 positions of reverse rotation is the level setting, and then guarantee to the accurate processing on two faces of machined surface B and machined surface C.

The turnover mechanism 7 comprises a rotating shaft 701, and the rotating shaft 701 is arranged on the rack 4 through a bearing 702 and a bearing seat 703; the clamping device 704 is arranged on the rotating shaft 701, a gear 705 is arranged at one end of the rotating shaft 701, a rotary driving guide rail 706 is arranged on the rack 4, a rack 707 is arranged on the rotary driving guide rail 706, the rack 707 is meshed with the gear 705, and the rack 707 is connected with a rotary driving cylinder 708 arranged on the rack 4. The driving operation accuracy is further improved by adopting a driving mode of the rack 707 and the gear 705.

The rotation driving cylinder 708 and the initial limit mechanism 8 are disposed on the same side of the frame 4. The structural design is more compact, and meanwhile, the interference with the material supporting and positioning mechanism is avoided.

The gear 705 is mounted on the rotating shaft 701 through an expansion sleeve a 10. By connecting the expansion sleeve A10 between the gear 705 and the rotating shaft 701, the gear 705 and the rotating shaft 701 can synchronously rotate, and the transmission precision is improved.

The clamping device 704 comprises a clamping support frame 7041 connected with the rotating shaft 701, two clamping seats 7042 are respectively arranged on two sides of the upper end face of the clamping support frame 7041, the upper end face of each clamping seat 7042 is higher than the upper end face of the clamping support frame 7041, a clamping limiting block 7043 is arranged on each clamping seat 7042, and a clamping cylinder 7044 matched with the clamping limiting block 7043 is further arranged on each clamping seat 7042. By adopting the clamping structure, the overall structure is high in strength, the clamping structure is convenient to be matched with the material supporting and positioning mechanism for positioning and clamping, and after a workpiece to be machined is arranged on the clamping seat 7042, a machining interval is reserved between the workpiece to be machined and the upper end of the clamping support frame 7041, so that the workpiece can be machined at each rotation angle conveniently.

The clamping support 7041 comprises support plates 7045 which are vertically spaced and arranged in parallel, and a plurality of connecting rods 7046 are connected between the two support plates 7045.

The initial limiting mechanism 8 includes a limiting driving cylinder 801 arranged on one side of the machine frame 4, the limiting driving cylinder 801 is connected with an initial limiting member a802, one end of the rotating shaft 701 is provided with an initial limiting member B803 which is matched with the initial limiting member a802 for limiting, and the initial limiting member B803 and the rotating shaft 701 rotate together.

The initial limit piece B803 is mounted on the rotating shaft 701 through an expansion sleeve B11.

The initial limiting part A802 is a vertically arranged cylindrical rod, the cylindrical rod is arranged on the guide seat 804, and the cylindrical rod is arranged on the vertically arranged limiting driving cylinder 801.

The initial limiting piece B803 is B-shaped, a mounting hole 8031 for mounting the expansion sleeve B11 and an initial limiting surface 8032 for cooperating with the initial limiting piece a802 for limiting are arranged on the initial limiting piece B803, and the initial limiting surface 8032 is perpendicular to the upper end surface of the clamping device 704. The initial limiting piece A802 and the initial limiting piece B803 are matched to perform precision limiting on the rotation angle of the rotating shaft 701, so that the machined surface A corresponding to the initial position is ensured to be horizontal, and the machining precision is further improved.

The forward and reverse rotation limiting mechanism 9 includes a forward and reverse rotation limiting member a901 disposed on one side of the frame 4, and the clamper 704 is provided with a forward and reverse rotation limiting member B902 that cooperates with the forward and reverse rotation limiting member a901 for limiting.

The forward and reverse rotation limiting piece B902 is of a plate-shaped structure, the lower end face of the forward and reverse rotation limiting piece B902 is provided with a forward and reverse rotation limiting face 9021, the forward and reverse rotation limiting piece A901 comprises a forward and reverse rotation limiting piece 9011 arranged on the rack 4, a limiting bolt A9012 matched with the forward and reverse rotation limiting face 9021 for limiting is arranged on the front end face of the forward and reverse rotation limiting piece 9011, a limiting bolt B9013 matched with the forward and reverse rotation limiting face 9021 for limiting is arranged on the rear end face of the forward and reverse rotation limiting piece B9011, the limiting bolt A9012 and the limiting bolt B9013 are symmetrically arranged relative to the forward and reverse rotation limiting piece 9011, and the limiting bolt A9012 and the. The positive and negative rotation limiting part B is used as a common reference for forward rotation by 90 degrees and reverse rotation by 90 degrees, then the bolt A is arranged on the front end face of the positive and negative rotation limiting part and used as a limit reference for reverse rotation by 90 degrees, the bolt B is arranged on the rear end face and used as a limit reference for forward rotation by 90 degrees, and then the corresponding processing face B is horizontal when the forward rotation by 90 degrees, and the processing face C corresponding to reverse rotation by 90 degrees is horizontal when the reverse rotation by 90 degrees, so that the accurate processing of the other two processing faces is ensured.

Three translation mechanism 5 is including setting up X on the frame 4 is to guide rail 501, X is equipped with X on the guide rail 501 and is to slide 502, X is connected with X servo motor 504 through X to lead screw 503 to slide 502, X is equipped with Y to guide rail 505 on to slide 502, Y is equipped with Y on to guide rail 505 and is to slide 506, Y to slide 506 through Y to lead screw 507 with Y is connected to servo motor 508, Y is to vertically being equipped with Z to guide rail seat 509 on the slide 506 front end, be equipped with Z to guide rail 510 on the Z to guide rail seat 509, Z is to guide rail 510 fixed mounting in Z to slide 511, be equipped with Z to servo motor 512 on Z to slide 511, Z is to servo motor 512 and is connected with Y to slide 506 through Z to lead screw 513, be equipped with aircraft nose 6 on the Z to slide 512. The space motion is realized by adopting a driving mode of the servo motor and the lead screw, and the device has the advantages of high running precision and convenience in operation.

The utility model discloses numerical control drilling and milling machine's working process:

firstly, it is explained that when a lock hole is processed on a door and window aluminum profile, the processing of three surfaces is in a sequential order, but no matter how the order is, three rotational processing positions of an initial position (corresponding to a processing surface A), a forward rotation 90 DEG position (corresponding to a processing surface B) and a reverse rotation 90 DEG position (corresponding to a processing surface C) are definitely needed, and here, it is explained that the forward rotation 90 DEG and the reverse rotation 90 DEG are relative to the initial position, and the processing surfaces corresponding to the three positions after the limit is good are required to be horizontal. Generally, the machining is started from an initial position.

Before machining, a rotary driving cylinder 708 is started, the rotary driving cylinder 708 drives a rack 707 to move along a rotary driving guide rail 706, so as to drive a gear 705 to rotate, the gear 705 drives a clamp 704 on the gear 705 to rotate through a rotating shaft 701, the drive is stopped when the upper end face of a clamp seat 7042 is in a horizontal position, and meanwhile, an initial limiting piece A802 blocks and limits an initial limiting piece B803, it is noted that when an initial limiting face 8032 of the initial limiting piece B803 is in contact with the initial limiting piece A802, the upper end face of the clamp seat 7042 is just in the horizontal position, in order to eliminate running errors, a micro numerical value is added on the basis of a theoretical numerical value to the stroke of the rotary driving cylinder 708 to ensure that the initial limiting face 8032 is in contact with the initial limiting piece A802 and further ensure that the upper end face of the clamp seat 7042 is in the horizontal position, a frame is placed on the upper end face of the clamp seat 7042, aligning the aluminum profile frame with a clamping limiting block 7043, then moving a positioner 3 (a pull-back cylinder 302 extends) on a material supporting frame 1, moving a positioning plate 304 to a specified positioning position, then locking the positioner 3 through a locking handle 303, after positioning is finished, starting a clamping cylinder 7044 to clamp the aluminum profile frame of a door and a window, then actuating the pull-back cylinder 302 to drive the positioning plate 304 to retract so as to separate the positioning plate 304 from the aluminum profile frame, then processing a processing surface A through a three-translation mechanism 5 and a machine head 6 (a corresponding processing cutter is arranged on the machine head 6), after processing the processing surface A, starting a limiting driving cylinder 801 to stop an initial limiting piece A802 from being acted, then driving a rotating shaft 701 to rotate forward by 90 degrees or reversely by 90 degrees through a rotating driving cylinder 708, and performing corresponding setting according to the sequence of the processing surface, taking forward rotation by 90 degrees as an example, when a forward and reverse rotation limiting surface 9021 of the forward and reverse rotation limiting piece B902 is in contact with a limiting bolt B9013 on the rear end surface of the forward and reverse rotation limiting piece 9011, the rotating shaft 701 rotates by 90 degrees right relative to the initial position, the processing surface B is horizontal, similarly, in order to eliminate the operation error, the stroke of the rotation driving cylinder is increased by a micro numerical value, and then the three-translation mechanism 5 drives the machine head 6 to process the processing surface B; after the machining is finished, the workpiece is reversely rotated for 180 degrees (the rotating shaft 701 reversely rotates for 90 degrees relative to the initial position), when a forward and reverse rotation limiting surface 9021 of the forward and reverse rotation limiting piece B902 is in contact with a limiting bolt A9012 on the front end surface of the forward and reverse rotation limiting piece 9011, the rotating shaft 701 reversely rotates for 90 degrees relative to the initial position, the machining surface C is horizontal, and similarly, in order to eliminate the running error, the stroke of the rotary driving cylinder is increased by a micro numerical value, and then the three-translation mechanism 5 drives the machine head 6 to machine the machining surface C. After three sides are machined, the door and window frame aluminum profiles are reset, loosened through the clamping cylinder 7044, and the machined frame aluminum profiles are taken down to complete machining. The whole machine has reasonable and reliable structural design, solves the positioning defect of the existing material supporting frame, has accurate rotation angle of the turnover mechanism, and improves the processing quality.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. The utility model provides a ask material positioning mechanism which characterized in that: the method comprises the following steps:

2. A numerical control milling and drilling machine is characterized in that: the material supporting and positioning device comprises a rack, wherein a material supporting and positioning mechanism as claimed in claim 1 is arranged on one side of the rack, a turnover mechanism matched with the material supporting and positioning mechanism for clamping and positioning is further arranged on the rack, a three-translation mechanism is further arranged on the rack, and a machine head is arranged at the tail end of the three-translation mechanism.

3. A numerically controlled milling and drilling machine according to claim 2, wherein: and one side of the rack, which is far away from the material supporting and positioning mechanism, is provided with an initial limiting mechanism and a forward and reverse limiting mechanism which are used for accurately limiting the rotation angle of the turnover mechanism.

4. A numerically controlled milling and drilling machine according to claim 3, wherein: the turnover mechanism comprises a rotating shaft, and the rotating shaft is arranged on the rack through a bearing and a bearing seat; the rotary shaft is provided with a clamping device, one end of the rotary shaft is provided with a gear, the rack is provided with a rotary driving guide rail, the rotary driving guide rail is provided with a rack, the rack is meshed with the gear, and the rack is connected with a rotary driving cylinder arranged on the rack.

5. A numerically controlled milling and drilling machine according to claim 4, wherein: the rotary driving cylinder and the initial limiting mechanism are arranged on the same side of the rack, and the gear is installed on the rotating shaft through the expansion sleeve A.

6. A numerically controlled milling and drilling machine according to claim 4, wherein: the binding clasp include with the tight support frame of clamp that the pivot is connected, press from both sides tight support frame up end both sides and be equipped with two tight seats of clamp respectively, press from both sides tight seat up end and be higher than press from both sides tight support frame up end, press from both sides to be equipped with on the tight seat and press from both sides tight stopper complex die clamping cylinder, press from both sides tight support frame and include vertical interval parallel arrangement's backup pad, two be connected with many connecting rods between the backup pad.

7. A numerically controlled milling and drilling machine according to claim 4, wherein: the initial limiting mechanism comprises a limiting driving cylinder arranged on one side of the rack, an initial limiting part A is connected to the limiting driving cylinder, an initial limiting part B matched with and limited by the initial limiting part A is arranged at one end of the rotating shaft, and the initial limiting part B and the rotating shaft rotate together.

8. A numerically controlled milling and drilling machine according to claim 7, wherein: the initial limiting part B is installed on the rotating shaft through the expansion sleeve B, the initial limiting part A is a vertically arranged cylindrical rod, the cylindrical rod is arranged on the guide seat, the cylindrical rod is installed on the vertically arranged limiting driving cylinder, the initial limiting part B is B-shaped, an installation hole for installing the expansion sleeve B and an initial limiting surface for matching and limiting with the initial limiting part A are formed in the initial limiting part B, and the initial limiting surface is perpendicular to the upper end surface of the clamping device.

9. A numerically controlled milling and drilling machine according to claim 4, wherein: the positive and negative rotation limiting mechanism comprises a positive and negative rotation limiting part A arranged on one side of the rack, a positive and negative rotation limiting part B matched with the positive and negative rotation limiting part A in a limiting mode is arranged on the clamping device, the positive and negative rotation limiting part B is of a plate-shaped structure, the lower end face of the positive and negative rotation limiting part B is arranged into a positive and negative rotation limiting face, the positive and negative rotation limiting part A comprises a positive and negative rotation limiting block arranged on the rack, a limiting bolt A matched with the positive and negative rotation limiting face in a limiting mode is arranged on the front end face of the positive and negative rotation limiting block, a limiting bolt B matched with the positive and negative rotation limiting face in a limiting mode is arranged on the rear end face of the positive and negative rotation limiting block, and the limiting bolt A and the limiting.

10. A numerically controlled milling and drilling machine according to claim 2, wherein: three traverse mechanism is including setting up X in the frame is to the guide rail, be equipped with X on the X to the slide to the guide rail, X passes through X to the slide and is connected with X servo motor to the lead screw, X is equipped with Y to the guide rail on to the slide, Y is equipped with Y to the slide on the Y to the guide rail, Y passes through Y to the slide and is connected to Y to servo motor to the lead screw, Y is to the vertical Z to the guide rail seat that is equipped with on the slide front end, be equipped with Z to the guide rail on the Z to the guide rail seat, Z is to guide rail fixed mounting in Z to the slide, Z is to being equipped with Z to servo motor on the slide, Z passes through Z to the lead screw and is connected to Y to the slide, Z is to being.