CN115041975A - Double-station machining center of numerical control machine tool - Google Patents

Double-station machining center of numerical control machine tool Download PDF

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Publication number
CN115041975A
CN115041975A CN202210787970.5A CN202210787970A CN115041975A CN 115041975 A CN115041975 A CN 115041975A CN 202210787970 A CN202210787970 A CN 202210787970A CN 115041975 A CN115041975 A CN 115041975A
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China
Prior art keywords
machine tool
machining
rod
sliding
station
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Granted
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CN202210787970.5A
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Chinese (zh)
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CN115041975B (en
Inventor
王立民
刘星明
刘士孔
刘正军
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Yiteli Chuzhou Intelligent Numerical Control Technology Co ltd
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Yiteli Chuzhou Intelligent Numerical Control Technology Co ltd
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Priority to CN202210787970.5A priority Critical patent/CN115041975B/en
Publication of CN115041975A publication Critical patent/CN115041975A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/64—Movable or adjustable work or tool supports characterised by the purpose of the movement
    • B23Q1/66—Worktables interchangeably movable into operating positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)

Abstract

The invention discloses a double-station machining center of a numerical control machine, which relates to the technical field of numerical control machines and comprises a machine tool cabin body, wherein a door frame is arranged on the machine tool cabin body, a first guide rail penetrating through the door frame is arranged on the machine tool cabin body, a first machining table is arranged on the first guide rail in a sliding mode through a sliding rod, and a machining station positioned on the inner side of the machine tool cabin body and a loading and unloading station positioned on the outer side of the machine tool cabin body are arranged on the sliding stroke of the first machining table; a second guide rail is arranged on the machine tool bin body, a first telescopic rod is arranged on the second guide rail in a sliding mode, a second machining table is fixedly connected to the top of the first telescopic rod, a side plate is embedded in the side face of the door frame, a guide groove is formed in the side plate and comprises a first inclined section, a second inclined section and a horizontal section, a sliding pin is relatively fixedly arranged on the second machining table and is arranged in the guide groove in a sliding mode; when the sliding pin slides to the horizontal section, the second processing table is positioned at the door frame, and the bottom of the second processing table is higher than the top of the first processing table.

Description

Double-station machining center of numerical control machine tool
Technical Field
The invention relates to the technical field of numerical control machines, in particular to a double-station machining center of a numerical control machine.
Background
The numerical control machine tool is an automatic machine tool provided with a program control system. In the process of processing a workpiece by the numerical control machine tool, the workpiece loading and unloading time takes a lot, so that a multi-station workbench which is arranged in a processing center and can be automatically exchanged is derived, the workpiece can be synchronously processed and loaded and unloaded, and the service efficiency of the machine tool is improved.
If the publication number is CN210756422U, the name is "a vertical numerical control machine tool with double worktables", it includes the lathe bed, the upper end of the lathe bed is equipped with the first worktable and the second worktable symmetrically on both sides, the middle part of the lathe bed is fixed with the first translation device, the first translation device is equipped with the bearing and the driving device, the bearing is fixed with the hydraulic cylinder, the hydraulic cylinder is fixed with the supporting plate, the supporting plate is far away from the hydraulic cylinder end and is fixed with the second translation device, the second translation device is equipped with the main spindle box; the spindle box is rotated through the hydraulic cylinder, and switching of the spindle box between the first workbench and the second workbench is achieved.
If the publication number is CN212526841U, the name is "a vertical numerical control machine tool double-workbench processing device", the device comprises a moving seat, a supporting platform is arranged above the moving seat, two processing platforms are arranged above the supporting platform, a lifting column is fixedly arranged at the bottom of the supporting platform, a lifting groove is formed in the bottom end of the lifting column, a lifting rod is slidably arranged in the lifting groove, a motor is fixedly arranged at the top of the moving seat, the bottom end of the lifting rod extends to the lower part of the lifting column and is fixedly connected with an output shaft of the motor, and a rotating disc is fixedly sleeved on the outer side of the lifting column; the two processing tables rotate, each processing table can process different workpieces, the processing tables can be switched rapidly, and the auxiliary time of the machine tool is reduced to the maximum extent.
Because the machined part is being processed the bits of residue, the coolant liquid splashes, consequently need a confined processing space, the setting of two processing platforms among the prior art including above-mentioned patent all leads to the showing increase of required processing space, either the processing space that corresponds of another processing platform is just in idle state when the work piece on one of them processing platform is processed, or two processing platforms shared processing space is great when switching over the position, the door frame on the lathe storehouse body need be opened very greatly to there is the lightweight of digit control machine tool, the compact design theory and the market demand of overall arrangement, great processing space needs to consume more time when clearing up the residue simultaneously.
Disclosure of Invention
The invention aims to provide a double-station machining center of a numerical control machine tool, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: a double-station machining center of a numerical control machine tool comprises a machine tool bin body, wherein a door frame is arranged on the machine tool bin body, a first guide rail penetrating through the door frame is arranged on the machine tool bin body, a first machining table is arranged on the first guide rail in a sliding mode through a sliding rod, a machining station located on the inner side of the machine tool bin body and a loading and unloading station located on the outer side of the machine tool bin body are arranged on the sliding stroke of the first machining table; a second guide rail parallel to the first guide rail is arranged on the machine tool bin body, a first telescopic rod is arranged on the second guide rail in a sliding mode, the top of the first telescopic rod is fixedly connected with a second machining table, a side plate is embedded in the side face of the door frame, a guide groove is formed in the side plate and comprises a first inclined section, a second inclined section and a horizontal section for connecting the first inclined section and the second inclined section, a sliding pin is relatively and fixedly arranged on the second machining table, and the sliding pin is arranged in the guide groove in a sliding mode; when the sliding pin is positioned at one end of the first inclined section far away from the horizontal section, the second machining table is positioned on the machining station; when the sliding pin slides to the horizontal section, the second processing table is positioned at the door frame, and the bottom of the second processing table is higher than the top of the first processing table; when the sliding pin slides to one end of the second inclined section far away from the horizontal section, the second processing table is positioned on the loading and unloading station.
Furthermore, a vertical driving shaft is rotatably arranged in the middle of the bottom of the door frame, a bidirectional telescopic rod is fixedly connected to the driving shaft, one end of the bidirectional telescopic rod is rotatably connected with the first telescopic rod, and the other end of the bidirectional telescopic rod is rotatably connected with the sliding rod; when the driving shaft rotates, the first processing table and the second processing table are driven to synchronously and reversely slide through the bidirectional telescopic rod.
Further, the driving mechanism is further included and used for driving the driving shaft to rotate.
Furthermore, a safety door for sealing the door frame is arranged on the machine tool cabin body in a sliding mode.
Furthermore, the first processing table and the second processing table are both provided with a locking mechanism for locking the processing piece.
Further, the locking mechanism comprises a cooperative component and a plurality of abutting parts in a circular array, each abutting part is arranged on the first processing table in a radial sliding mode, and the cooperative component is used for driving each abutting part to synchronously slide and fold so as to abut and lock the processing piece.
Furthermore, a plurality of sliding grooves distributed in an annular array are formed in the first processing table, a sliding rod is fixedly connected to each abutting portion, and each sliding rod is in one-to-one corresponding sliding connection with each sliding groove.
Further, the cooperation assembly comprises a rotating ring, the rotating ring is rotatably arranged at the center of the bottom of the first machining table, a plurality of wedge blocks are fixedly connected to the periphery of the rotating ring, each wedge block is in one-to-one abutting and sliding fit with each sliding rod, a first elastic unit is arranged between each sliding rod and the first machining table, the elastic force of the first elastic unit drives the corresponding sliding rod to slide away from the center of the first machining table, a spiral groove is formed in the lower end face of the rotating ring, a sliding rod is vertically and slidably arranged on the first machining table, and the top of the sliding rod is slidably arranged in the spiral groove; still include the limiting plate, the limiting plate is located the below of processing station, first processing platform moves extremely during the processing station, slide bar and limiting plate butt cooperation, the relative first processing platform rebound of slide bar and with the sliding fit of helicla flute for rotatory ring and each wedge rotate along first direction, and the elasticity that each wedge overcome first elastic element orders about corresponding litter and butt portion and slides to fold the centre gripping machined part to first processing platform center.
Further, a guide inclined plane is arranged on the limiting plate.
Further, the machined part is wheel hub, the fluting has been seted up on the butt portion, and it is provided with the connecting rod to slide in the fluting, and the top fixedly connected with depression bar of connecting rod, the bottom surface of depression bar flush with the upper surface of wheel hub's spoke, and the bottom fixedly connected with of connecting rod supports the feeler lever, and the side of butt portion is run through in the activity of conflict lever one end, still is provided with second elastic unit in the fluting, and the tip protrusion in the side of butt portion of support the feeler lever is ordered about to the elasticity of second elastic unit.
In the technical scheme, the first machining table and the second machining table can be alternately positioned at the machining station and the loading and unloading station, so that the machined parts can be synchronously machined and loaded and unloaded, and the machining efficiency is greatly improved; when first processing platform and second processing platform exchange position, the second processing platform moves to door frame department, the bottom of second processing platform is higher than the top of first processing platform, thereby make first processing platform also can follow second processing platform below and smoothly pass through the door frame, can not produce the interference when making first processing platform and second processing platform exchange position, and shared processing space and door frame space all reduce in prior art by a wide margin when first processing platform passes through the door frame with the second processing platform, satisfy the lightweight of digit control machine tool, design theory and market demand that the overall arrangement is compact.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
FIG. 1 is a schematic structural diagram provided in an embodiment of the present invention;
FIG. 2 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 3 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 7 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 8 is a schematic structural diagram provided in accordance with an embodiment of the present invention;
FIG. 9 is a schematic structural view of a locking mechanism according to an embodiment of the present invention when unlocked;
FIGS. 10-11 are schematic views of the locking mechanism according to the present invention;
12-13 are schematic structural views of the upper end of the workpiece without limiting the position of the compression bar according to the embodiment of the present invention;
FIG. 14 is a cross-sectional view of the structure of FIG. 13 taken along line A-A in accordance with an embodiment of the present invention;
fig. 15 is a schematic structural view of the upper end of the workpiece being limited by the pressing rod according to the embodiment of the present invention.
Description of reference numerals:
1. a machine tool cabin body; 1.1, a door frame; 2. a first guide rail; 3. a slide bar; 4. a first processing table; 4.1, through holes; 5. a second guide rail; 6. a first telescopic rod; 7. a second processing table; 8. a guide groove; 8.1, a first inclined section; 8.2, a horizontal section; 8.3, a second inclined section; 9. a slide pin; 10. a drive shaft; 11. a bidirectional telescopic rod; 12. a safety door; 13. a locking mechanism; 13.1, an abutting part; 13.11, slotting; 13.12, a compression bar; 13.13, abutting against the rod; 13.14, connecting rod; 13.15, a second elastic unit; 13.2, a chute; 13.3, a slide rod; 13.4, a cooperative component; 13.41, a rotating ring; 13.42, wedge-shaped blocks; 13.43, a first elastic unit; 13.44, spiral groove; 13.45, a limiting plate; 13.46, sliding rod.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1-15, the double-station machining center of the numerical control machine tool provided by the embodiment of the invention comprises a machine tool cabin body 1 (only the front side of the machine tool cabin body 1 is shown in the figure), a door frame 1.1 is arranged on the machine tool cabin body 1, a first guide rail 2 penetrating through the door frame 1.1 is arranged on the machine tool cabin body 1, a first machining table 4 is arranged on the first guide rail 2 in a sliding manner through a sliding rod 3, and a machining station located on the inner side of the machine tool cabin body 1 and a loading and unloading station located on the outer side of the machine tool cabin body 1 are arranged on the sliding stroke of the first machining table 4; a second guide rail 5 parallel to the first guide rail 2 is arranged on the machine tool bin body 1, the height of the second guide rail 5 is consistent with that of the first guide rail 2, a first telescopic rod 6 is arranged on the second guide rail 5 in a sliding manner, the top of the first telescopic rod 6 is fixedly connected with a second processing table 7, the preferable second processing table 7 is consistent with that of the first processing table 4 in structure, a side plate is embedded on the side surface of the door frame 1.1, a guide groove 8 is formed in the side plate, the guide groove 8 comprises a first inclined section 8.1, a second inclined section 8.3 and a horizontal section 8.2 connecting the first inclined section 8.1 with the second inclined section 8.3, the first inclined section 8.1 and the second inclined section 8.3 are symmetrical relative to the door frame 1.1, one end, close to the door frame 1.1, of the horizontal section 8.2 is higher than the other end of the first inclined section, a sliding pin 9 is relatively and fixedly arranged on the second processing table 7, and the sliding pin 9 is arranged in the guide groove 8 in a sliding manner; when the sliding pin 9 is positioned at one end of the first inclined section 8.1 far away from the horizontal section 8.2, the second processing table 7 is positioned on a processing station which is at the same position as the processing station of the first processing table 4; when the sliding pin 9 slides to the horizontal section 8.2, the second processing table 7 is positioned at the door frame 1.1, and the bottom of the second processing table 7 is higher than the top of the first processing table 4; when the sliding pin 9 slides to the end of the second inclined section 8.3 far from the horizontal section 8.2, the second processing table 7 is located on the loading and unloading station which is at the same position as the loading and unloading station of the first processing table 4.
In the technical scheme, according to the double-station machining center of the numerical control machine tool, the first machining table 4 and the second machining table 7 can be alternately positioned at the machining station and the loading and unloading station, so that the machined parts can be machined and loaded and unloaded synchronously, and the machining efficiency is greatly improved; when the first processing table 4 and the second processing table 7 exchange positions, the second processing table 7 moves to the door frame 1.1, the bottom of the second processing table 7 is higher than the top of the first processing table 4, so that the first processing table 4 can smoothly pass through the door frame 1.1 from the lower part of the second processing table 7, interference can not be generated when the first processing table 4 and the second processing table 7 exchange positions, and the occupied processing space of the first processing table 4 and the second processing table 7 when passing through the door frame 1.1 is greatly reduced compared with the space of the door frame 1.1 in the prior art, and the design concept and the market demand of the numerical control machine tool with light weight and compact layout are met. In this embodiment, the processing stations of the first processing table 4 and the second processing table 7 are kept consistent, so that the machining of the workpieces on the first processing table 4 and the second processing table 7 by the main shaft of the numerical control machine tool is facilitated, and the loading and unloading stations of the first processing table 4 and the second processing table 7 are also kept consistent, so that the workpieces can be conveniently loaded and unloaded to and from the first processing table 4 and the second processing table 7.
As a preferable technical solution of this embodiment, the device further includes two driving members, wherein one driving member drives the sliding rod 3 to slide on the first guide rail 2, and the other driving member drives the telescopic rod to slide on the second guide rail 5, and the driving member is preferably a hydraulic device or an electric push rod.
As another preferable technical scheme of this embodiment, a vertical driving shaft 10 is rotatably disposed in the middle of the bottom of the door frame 1.1, a bidirectional telescopic rod 11 is fixedly connected to the driving shaft 10, one end of the bidirectional telescopic rod 11 is rotatably connected to the first telescopic rod 6, and the other end is rotatably connected to the sliding rod 3; the device further comprises a driving mechanism (not shown in the figure), the driving mechanism is used for driving the driving shaft 10 to rotate, when the driving shaft 10 rotates, the bidirectional telescopic rod 11 drives the first processing table 4 and the second processing table 7 to synchronously and reversely slide, so that the first processing table 4 and the second processing table 7 can synchronously and reversely slide to exchange positions, when the second processing table 7 moves to the door frame 1.1, the first processing table 4 also moves to the door frame 1.1, and the first processing table 4 is positioned right below the second processing table 7. Preferably, the driving mechanism is a servo motor, and a power output shaft of the servo motor is connected with the driving shaft 10. Preferably, the driving mechanism comprises a gear, a rack and a hydraulic cylinder, the gear is coaxially and fixedly connected to the driving shaft 10, the open end of the hydraulic cylinder is fixedly connected with the rack, the length direction of the rack is consistent with the length direction of the hydraulic rod 13.12, and the rack is meshed with the gear.
Further, the safety door 12 used for sealing the door frame 1.1 is arranged on the machine tool cabin body 1 in a sliding mode, the safety door 12 can isolate the inner side and the outer side of the machine tool cabin body 1 during machining, specifically, the safety door 12 comprises a frame, transparent glass is embedded in the frame, and the transparent glass is convenient for observing the condition in the machining space.
In another embodiment of the present invention, the first processing table 4 and the second processing table 7 are provided with a locking mechanism 13 for locking the workpiece, and the locking mechanism 13 on the first processing table 4 and the locking mechanism 13 on the second processing table 7 have the same structure. Specifically, the locking mechanism 13 includes a cooperating assembly 13.4 and a plurality of abutting portions 13.1 in a circular array, each abutting portion 13.1 is radially slidably disposed on the first processing table 4, specifically, a plurality of sliding slots 13.2 distributed in an annular array are disposed on the first processing table 4, each abutting portion 13.1 is fixedly connected with a sliding rod 13.3, each sliding rod 13.3 is slidably connected with each sliding slot 13.2 in a one-to-one correspondence manner, and the cooperating assembly 13.4 is configured to drive each abutting portion 13.1 to synchronously slide and fold to abut against and lock the workpiece.
As a preferable technical solution of the present embodiment, the cooperative assembly 13.4 includes a rotating ring 13.41, the rotating ring 13.41 is rotatably disposed at the bottom center of the first processing table 4, a plurality of wedge blocks 13.42 are fixedly connected to the circumferential side of the rotating ring 13.41, each wedge block 13.42 is in one-to-one corresponding abutting and sliding fit with each slide rod 13.3, a first elastic unit 13.43 is disposed between each slide rod 13.3 and the first processing table 4, the elastic force of the first elastic unit 13.43 drives the corresponding slide rod 13.3 to slide away from the center of the first processing table 4, the first elastic unit 13.43 is preferably a compression spring, a bump is disposed on the lower end surface of the rotating ring 13.41, a spiral groove 13.44 is disposed on the bump, a slide rod 13.46 is vertically slidably disposed on the first processing table 4, and the top of the slide rod 13.46 is slidably disposed in the spiral groove 13.44; the machining device further comprises a limiting plate 13.45, the limiting plate 13.45 is located below the machining station, when the first machining table 4 moves to the machining station, the sliding rod 13.46 is in abutting fit with the limiting plate 13.45, the sliding rod 13.46 moves upwards relative to the first machining table 4 and is in sliding fit with the spiral groove 13.44, so that the rotating ring 13.41 and each wedge-shaped block 13.42 rotate along the first direction, each wedge-shaped block 13.42 overcomes the elastic force of the first elastic unit 13.43 to drive the corresponding sliding rod 13.3 and the abutting portion 13.1 to slide towards the center of the first machining table 4 and fold and clamp a machined part, and each abutting portion 13.1 clamps and locks the machined part on the first machining table 4 for machining, specifically, when the machined part is a hub, one end face of the hub faces downwards, the abutting portion 13.1 is located between two adjacent spokes of the hub, the abutting portion 13.1 is in an isosceles triangle shape, and when each abutting portion 13.1 slides towards the center of the first machining table 4, each abutting portion 13.1 abuts against an included angle between two adjacent spokes, when the hub is locked, the middle part of the first processing table 4 is provided with a through hole 4.1, the shaft part of the hub is aligned to the through hole 4.1, and when a spindle of a numerical control machine tool is used for drilling through the central shaft of the hub, scraps can be discharged through the through hole 4.1; when the machining is finished, the driving shaft 10 rotates to drive the bidirectional telescopic rod 11 to rotate, the bidirectional telescopic rod 11 drives the first machining table 4 and the second machining table 7 to synchronously slide in the reverse direction, so that the first machining table 4 and the second machining table 7 can synchronously slide in the reverse direction to exchange positions, when the first machining table 4 or the second machining table 7 is separated from the machining station, the sliding rod 13.46 is synchronously separated from the contact of the limiting plate 13.45, the sliding rod 13.46 can move downwards, the elastic force of the first elastic unit 13.43 enables the sliding rod 13.3 and the contact part 13.1 to slide away from the center of the first machining table 4 or the second machining table 7, the workpiece is unlocked, and simultaneously the sliding rod 13.3 rotates the rotating ring 13.41 in a second direction through the cooperation with the corresponding wedge block 13.42, the second direction is a rotating direction opposite to the first direction, so that the sliding rod 13.46 is moved downwards by the spiral groove 13.44.
Further, the stopper plate 13.45 is provided with a guide slope, and when the first processing table 4 moves from the loading/unloading station to the processing station, the slide rod 13.46 of the locking mechanism 13 on the first processing table 4 contacts the guide slope, and the guide slope guides the slide rod 13.46 to the top of the stopper plate 13.45.
In another embodiment provided by the present invention, the abutting portion 13.1 is provided with a slot 13.11, the slot 13.11 is slidably provided with a connecting rod 13.14, the top of the connecting rod 13.14 is fixedly connected with a pressure lever 13.12, the bottom surface of the pressure lever 13.12 is flush with the upper surface of the spoke of the hub, the bottom of the connecting rod 13.14 is fixedly connected with an abutting rod 13.13, one end of the abutting rod 13.13 movably penetrates through the side surface of the abutting portion 13.1, the slot 13.11 is further provided with a second elastic unit 13.15, and the elastic force of the second elastic unit 13.15 drives the end of the abutting rod 13.13 to protrude out of the side surface of the abutting portion 13.1. Locking mechanical system 13 is at locking wheel hub's in-process, and when butt portion 13.1 slided towards the center of first processing platform 4 or second processing platform 7, conflict pole 13.13 contradicts the side of spoke, and when butt portion 13.1 completely butt to the contained angle of two adjacent spoke spares, conflict pole 13.13 was also by the spoke side totally to support in fluting 13.11 completely to make depression bar 13.12 slide to the upper surface of spoke, carry on spacingly to wheel hub's upper end promptly, avoid the spoke to take place axial displacement. According to the embodiment, the locking mechanism 13 is driven to automatically lock the workpiece in the horizontal direction and the vertical direction when the first processing table 4 or the second processing table 7 moves to the processing station, and the locking mechanism 13 is driven to automatically unlock the workpiece in the horizontal direction and the vertical direction when the first processing table 4 or the second processing table 7 moves to the loading and unloading station, so that the workpiece can be conveniently loaded and unloaded at the loading and unloading station.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (10)

1. The utility model provides a digit control machine tool duplex position machining center, includes the lathe storehouse body, has seted up the door frame on the lathe storehouse body, its characterized in that:
a first guide rail penetrating through a door frame is arranged on the machine tool cabin body, a first machining table is arranged on the first guide rail in a sliding mode through a sliding rod, and a machining station located on the inner side of the machine tool cabin body and a loading and unloading station located on the outer side of the machine tool cabin body are arranged on the sliding stroke of the first machining table;
a second guide rail parallel to the first guide rail is arranged on the machine tool bin body, a first telescopic rod is arranged on the second guide rail in a sliding mode, the top of the first telescopic rod is fixedly connected with a second machining table, a side plate is embedded in the side face of the door frame, a guide groove is formed in the side plate and comprises a first inclined section, a second inclined section and a horizontal section for connecting the first inclined section and the second inclined section, a sliding pin is relatively and fixedly arranged on the second machining table, and the sliding pin is arranged in the guide groove in a sliding mode;
when the sliding pin is positioned at one end of the first inclined section far away from the horizontal section, the second machining table is positioned on the machining station; when the sliding pin slides to the horizontal section, the second processing table is positioned at the door frame, and the bottom of the second processing table is higher than the top of the first processing table; when the sliding pin slides to one end of the second inclined section far away from the horizontal section, the second processing table is positioned on the loading and unloading station.
2. The double-station machining center of the numerical control machine tool as claimed in claim 1, wherein a vertical driving shaft is rotatably arranged in the middle of the bottom of the door frame, a bidirectional telescopic rod is fixedly connected to the driving shaft, one end of the bidirectional telescopic rod is rotatably connected with the first telescopic rod, and the other end of the bidirectional telescopic rod is rotatably connected with the slide rod; when the driving shaft rotates, the first processing table and the second processing table are driven to synchronously and reversely slide through the bidirectional telescopic rod.
3. The double-station machining center of the numerical control machine tool as claimed in claim 2, further comprising a driving mechanism for driving the driving shaft to rotate.
4. The double-station machining center of the numerical control machine tool as claimed in claim 1, characterized in that a safety door for closing a door frame is slidably arranged on the machine tool bin body.
5. The double-station machining center of the numerical control machine tool as claimed in claim 2, wherein the first machining table and the second machining table are provided with locking mechanisms for locking the machined parts.
6. The double-station machining center of the numerical control machine tool as claimed in claim 5, wherein the locking mechanism comprises a cooperating assembly and a plurality of abutting parts in a circular array, each abutting part is arranged on the first machining table in a radial sliding mode, and the cooperating assembly is used for driving each abutting part to synchronously slide and fold to abut against and lock a machined part.
7. The double-station machining center of the numerical control machine tool according to claim 6, wherein the first machining table is provided with a plurality of sliding grooves distributed in an annular array, each abutting portion is fixedly connected with a sliding rod, and each sliding rod is in one-to-one corresponding sliding connection with each sliding groove.
8. The double-station machining center of the numerical control machine tool as claimed in claim 7, wherein the cooperative assembly comprises a rotating ring, the rotating ring is rotatably arranged at the center of the bottom of the first machining table, a plurality of wedge blocks are fixedly connected to the periphery of the rotating ring, each wedge block is in one-to-one abutting sliding fit with each slide rod, a first elastic unit is arranged between each slide rod and the first machining table, the elasticity of the first elastic unit drives the corresponding slide rod to slide away from the center of the first machining table, a spiral groove is arranged on the lower end face of the rotating ring, a slide rod is vertically slidably arranged on the first machining table, and the top of the slide rod is slidably arranged in the spiral groove; still include the limiting plate, the limiting plate is located the below of processing station, first processing platform moves extremely during the processing station, slide bar and limiting plate butt cooperation, the relative first processing platform rebound of slide bar and with the sliding fit of helicla flute for rotatory ring and each wedge rotate along first direction, and the elasticity that each wedge overcome first elastic element orders about corresponding litter and butt portion and slides to fold the centre gripping machined part to first processing platform center.
9. The double-station machining center of the numerical control machine tool according to claim 8, wherein the limiting plate is provided with a guide inclined surface.
10. The double-station machining center of the numerical control machine tool according to claim 8, wherein the machined part is a wheel hub, a slot is formed in the abutting portion, a connecting rod is slidably arranged in the slot, a pressure rod is fixedly connected to the top of the connecting rod, the bottom surface of the pressure rod is flush with the upper surface of a spoke of the wheel hub, a contact rod is fixedly connected to the bottom of the connecting rod, one end of the contact rod movably penetrates through the side face of the abutting portion, a second elastic unit is further arranged in the slot, and the end portion of the contact rod is driven by the elastic force of the second elastic unit to protrude out of the side face of the abutting portion.
CN202210787970.5A 2022-07-04 2022-07-04 Double-station machining center of numerical control machine tool Active CN115041975B (en)

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