阅读说明：本技术 一种外齿铣齿机 (External tooth milling machine ) 是由 是新 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种外齿铣齿机,包括机架,机架上装有转盘,转盘周围设置有铣齿装置和泄气槽加工装置,转盘上装有夹持装置,夹持装置用于对应工件进行定位夹持并使得工件待加工的外环壁处于可被加工的状态,本发明布局合理,结构稳定,能够对不同尺寸的工件进行自动定位夹持,并能够使得不同尺寸工件的外环壁处于可被加工的状态,适用性广,满足了现在的使用要求。(The invention relates to an external tooth gear milling machine, which comprises a rack, wherein a rotary table is arranged on the rack, a gear milling device and an air leakage groove processing device are arranged around the rotary table, a clamping device is arranged on the rotary table, and the clamping device is used for positioning and clamping corresponding to a workpiece and enabling the outer ring wall of the workpiece to be processed to be in a processable state.)

1. The utility model provides an external tooth mills tooth machine which characterized in that: the machining device comprises a rack, wherein a turntable (100) is arranged on the rack, a gear milling device (400) and an air leakage groove machining device (500) are arranged around the turntable (100), a clamping device (200) is arranged on the turntable (100), and the clamping device (200) is used for positioning and clamping a workpiece (300) and enabling an outer annular wall to be machined of the workpiece (300) to be in a machinable state.

2. The external gear milling machine of claim 1, wherein: the clamping device (200) comprises clamping jaws (210) and an adjusting mechanism (230), wherein the clamping jaws (210) are distributed on the rotary table (100) in a circumferential array around the rotary shaft of the rotary table (100), each clamping jaw (210) is in sliding guide fit with the rotary table (100) on the rotary table (100) along the radial direction of the rotary table (100), and the adjusting mechanism (230) adjusts each clamping jaw (210) to move synchronously, so that each clamping jaw (210) abuts against the inner annular wall of a flange ring of a workpiece (300) to drive the workpiece to move to a position where the central line of the workpiece is collinear with the rotary shaft of the rotary table (100).

3. The external gear milling machine of claim 2, wherein: the clamping device (200) further comprises supporting pieces (220) used for supporting the workpiece (300), the supporting pieces (220) are distributed on the rotary table (100) in a circumferential array mode around the rotary shaft of the rotary table (100), the supporting pieces (220) are in sliding guide fit with the rotary table (100) on the rotary table along the radial direction of the rotary table (100), and the adjusting mechanism (230) adjusts the movement of the supporting pieces (220), so that the outer ring wall of the workpiece (300) to be machined is located on the periphery of the supporting pieces (220).

4. The external gear milling machine of claim 3, wherein: the clamping jaws (210) and the supporting pieces (220) are arranged in a one-to-one correspondence mode, the moving paths of the clamping jaws (210) and the corresponding supporting pieces (220) are consistent, and the clamping jaws (210) and the corresponding supporting pieces (220) form sliding fit.

5. The external gear milling machine of claim 4, wherein: the adjusting mechanism (230) comprises an A adjusting mechanism (232) and a B adjusting mechanism (231), the A adjusting mechanism (232) is used for adjusting the movement of each supporting piece (220), and the B adjusting mechanism (231) is used for adjusting the synchronous movement of each clamping jaw (210).

6. The external gear milling machine of claim 5, wherein: a adjustment mechanism (232) include with prop each electric cylinder (232a) that holds in the palm piece (220) one-to-one setting, and electric cylinder (232a) stiff end is installed on carousel (100), and electric cylinder (232a) expansion end is connected and is propped piece (220).

7. The external gear milling machine of claim 5, wherein: the B adjusting mechanism (231) comprises a B adjusting component (231a) and a B transmission component (231B), the B transmission component (231B) and the jaws (210) are arranged in a one-to-one correspondence mode, and the B adjusting component (231a) drives the jaws (210) to synchronously move through the B transmission components (231B).

8. The external gear milling machine of claim 7, wherein: the B transmission assembly (231B) comprises a lead screw nut (231B1), a nut fixedly connected with a claw (210), a driven bevel gear (231B2) is installed at one end, close to the center of the turntable (100), of the lead screw, the driven bevel gear (231B2) is meshed with a driving bevel gear (231B3), the driving bevel gear (231B3) is installed at one end of a rotating shaft, the rotating shaft is installed on the turntable (100), a driving gear (231B4) is installed at one end of the rotating shaft, the B adjusting assembly comprises a fluted disc, and the driving gear (231B4) is.

9. The external gear milling machine of claim 1, wherein: two groups of gear milling devices (400) and air leakage groove processing devices (500) are arranged, and the two groups of gear milling devices (400) and the air leakage groove processing devices (500) are symmetrically arranged around the turntable (100).

10. The external gear milling machine of claim 1, wherein: and one side of the gear milling device (400) is provided with a hydraulic clamping device which is used for clamping a flange ring of the workpiece (300).

11. The external gear milling machine of claim 1, wherein: a center frame (900) is arranged at the center position of the turntable (100), a lead screw (600) is arranged on the center frame (900), the axis of the lead screw (600) is collinear with the rotation axis of the turntable (100), the lead screw (600) is matched with a through hole at the center point of a workpiece (300), and a pressing sleeve (800) and a twisting rod (700) for clamping the workpiece are arranged on the lead screw (600).

Technical Field

The invention relates to the field of workpiece processing, in particular to an external tooth milling machine.

Background

Because of the need for good sealing performance, the sealing covers of large-scale equipment such as vulcanizing tanks, steam kettles, glass kettles and the like are generally assembled in a tooth meshing manner, and the sealing covers are generally composed of a cover body and a flange ring, and the outer ring wall of the flange ring is processed into teeth, so that the sealing covers can be meshed with the inner teeth on the tank body or the kettle body to form a good sealing effect.

The workpiece is generally installed on the rotary table at present, then the mode of milling the teeth is adopted to mill the teeth of the sealing cover, the workpiece size is large, the existing tooth milling equipment is difficult to position, the machining accuracy is low, the machining quality is seriously influenced, in addition, the outer ring of the sealing cover is machined, the rotary table size is fixed, when the workpieces with different sizes are machined, the rotary table cannot support the workpieces, or the edge of the rotary table extends out of the outer ring wall of the workpiece to interfere the machining of the milling cutter, the applicability is low, and therefore the problems are urgently needed to be solved.

Disclosure of Invention

The invention aims to provide an external tooth milling machine, which can position and clamp a workpiece and enable the outer ring wall of the workpiece to be in a state of being capable of being processed.

The technical scheme adopted by the invention is as follows.

The utility model provides an outer tooth mills tooth machine, includes the frame, is equipped with the carousel in the frame, is provided with around the carousel and mills tooth device and disappointing groove processingequipment, is equipped with clamping device on the carousel, and clamping device is used for corresponding the work piece to carry out the location centre gripping and make the outer rampart that the work piece waited to process be in the state that can process.

Preferably: the clamping device comprises clamping jaws and an adjusting mechanism, the clamping jaws are distributed on the rotary table in a circumferential array manner around the rotary shaft of the rotary table, each clamping jaw is in sliding guide fit with the rotary table along the radial direction of the rotary table on the rotary table, and the adjusting mechanism adjusts the synchronous motion of each clamping jaw, so that each clamping jaw abuts against the inner ring wall of the workpiece flange ring to drive the workpiece to move to the position where the central line of the workpiece is collinear with the rotary table rotary shaft.

Preferably: the clamping device further comprises supporting pieces for supporting the workpiece, the supporting pieces are distributed on the rotary table in a circumferential array mode around the rotary shaft of the rotary table, the supporting pieces are in sliding guide fit with the rotary table on the rotary table along the radial direction of the rotary table, and the adjusting mechanism adjusts the supporting pieces to move, so that the outer ring wall of the workpiece to be machined is located on the periphery of each supporting piece when the workpiece is machined.

Preferably: the clamping jaws and the supporting pieces are arranged in a one-to-one correspondence mode, the moving paths of the clamping jaws and the corresponding supporting pieces are consistent, and the clamping jaws and the corresponding supporting pieces form sliding fit.

Preferably: the adjusting mechanism comprises an adjusting mechanism A and an adjusting mechanism B, the adjusting mechanism A is used for adjusting the movement of each supporting piece, and the adjusting mechanism B is used for adjusting the synchronous movement of each clamping jaw.

Preferably: the A adjusting mechanism comprises electric cylinders which are arranged in one-to-one correspondence with the supporting pieces, fixed ends of the electric cylinders are installed on the rotary table, and movable ends of the electric cylinders are connected with the supporting pieces.

Preferably: the B adjusting mechanism comprises a B adjusting component and a B transmission component, the B transmission component and each clamping jaw are arranged in a one-to-one correspondence mode, and the B adjusting component drives each clamping jaw to move synchronously through each B transmission component.

Preferably: the B transmission assembly comprises a lead screw nut, a nut is fixedly connected with a clamping jaw, one end, close to the center of the rotary table, of the lead screw is provided with a driven bevel gear, the driven bevel gear is meshed with a driving bevel gear, the driving bevel gear is arranged at one end of a rotary shaft, the rotary shaft is arranged on the rotary table, one end of the rotary shaft is provided with a driving gear, the B adjusting assembly comprises a fluted disc, and the.

Preferably: the two groups of gear milling devices and the air leakage groove processing devices are symmetrically arranged around the turntable.

Preferably: and one side of the gear milling device is provided with a hydraulic clamping device which is used for clamping a flange ring of a workpiece.

Preferably: the center position on the carousel is equipped with the centre frame, is equipped with the lead screw on the centre frame, and the lead screw axis is the collineation with the axis of rotation of carousel, and the lead screw matches with the through-hole of work piece central point, is equipped with the pressure cover and the hank thick stick that are used for pressing from both sides tight work piece on the lead screw.

Through clamping device's setting, at first can fix a position the work piece, fix a position the work piece to the central line of work piece and the collinear position of the axis of rotation of carousel and carry out the centre gripping to the work piece, be convenient for realize carrying out the milling teeth processing of high progress to the work piece, to the work piece of equidimension not, clamping device homoenergetic can make the outer rampart that the work piece was treated to process be in the state that can process for the course of working is smooth, can not take place to interfere the problem of milling teeth processing.

Through the setting of jack catch, after hoisting the work piece on the carousel, order about each jack catch synchronous motion through adjustment mechanism, the jack catch supports and leans on the interior rampart of work piece for the technology removes to the position of its central line and carousel central line collineation, realizes locate function, and continuously supports the interior rampart that leans on the work piece, realizes the clamping function to the work piece.

Through the setting that props the support piece, prop the support piece and can be along the radial slip of carousel, so to the work piece of unidimensional not, prop the support piece and can both prop the support, prop the position of support piece on the carousel through adjusting moreover, under the prerequisite of guaranteeing the support work piece, prop the support piece and can move the work piece and treat that the outer rampart of processing is inboard for outer rampart is in the state that can process, makes the support piece can not interfere milling cutter processing.

Through jack catch and bracketing spare one-to-one setting for the overall arrangement of jack catch and bracketing spare on the carousel is more reasonable, and the adjustment mechanism of being convenient for simultaneously adjusts each jack catch and each bracketing spare motion.

Through the setting of A adjustment mechanism and B adjustment mechanism for jack catch and bracketing spare have independent driving source separately, are convenient for control jack catch and bracketing spare motion, make the regulation simple more swift.

Through electric cylinder's setting, can realize that the drive props the motion of holding in the palm, electric cylinder simple structure, simple to operate, control is simple.

Through the setting of B adjusting part and B drive assembly, B drive assembly transmits power to each jack catch in step for each jack catch can synchronous motion.

Through lead screw nut's setting, transmission precision is high, can the accurate motion of adjusting the jack catch, through the setting of driving gear, driven bevel gear and drive gear, realizes gear drive, and the transmission progress is high, through fluted disc and each drive gear meshing for the fluted disc can drive each drive gear synchronous motion.

Through with two sets of gear milling devices, the equal symmetry setting of groove processingequipment that loses heart around the carousel, the work piece can accomplish the processing to the gear milling of work piece and the groove that loses heart on the carousel of rotation degree, can effectual promotion machining efficiency.

Through the arrangement of the hydraulic clamping device, the workpiece can be clamped when the gear milling machining is carried out, the problem that the workpiece deviates when the machining is carried out is avoided, the machining can be stably carried out, and the machining precision and the machining quality are guaranteed.

Through the arrangement of the lead screw, the pressing sleeve and the twisting rod, after the workpiece is hoisted to the turntable and is positioned and clamped through the clamping device, the workpiece is tightly pressed to the turntable through the pressing sleeve, so that the workpiece is fixed on the turntable, and subsequent processing work on the workpiece is facilitated.

The technical effects obtained by the invention are as follows: the automatic positioning clamping device is reasonable in layout and stable in structure, can automatically position and clamp workpieces with different sizes, can enable the outer ring walls of the workpieces with different sizes to be in a state capable of being processed, is wide in applicability, and meets the current use requirements.

Drawings

Fig. 1 is a schematic structural diagram of an external tooth milling machine according to the present invention.

Fig. 2 is a top view of an external gear milling machine according to the present invention.

Fig. 3 is a schematic structural diagram of an adjusting device and a turntable in an external tooth milling machine according to the present invention.

Fig. 4 is a schematic structural diagram of a jaw and a supporting piece in an external tooth gear milling machine provided by the invention.

Fig. 5 is a partial sectional view of a position a when the external gear milling machine according to the present invention positions and clamps a workpiece.

The corresponding relation of all the reference numbers is as follows: 100-rotary table, 200-clamping device, 210-clamping jaw, 220-supporting piece, 230-adjusting mechanism, 231-B adjusting mechanism, 231a-B adjusting assembly, 231B-transmission assembly, 231B 1-lead screw nut, 231B 2-driven bevel gear, 231B 3-driving bevel gear, 231B 4-driving gear, 232-A adjusting mechanism, 232 a-electric cylinder, 300-workpiece, 400-milling machine device, 500-air leakage groove processing device, 600-lead screw, 700-twist bar, 800-pressing sleeve and 900-center frame.

Detailed Description

In order that the objects and advantages of the invention will be more clearly understood, the invention will now be described in detail with reference to the following examples. It is to be understood that the following text is merely illustrative of one or more specific embodiments of the invention and does not strictly limit the scope of the invention as specifically claimed.