CN113770269A

CN113770269A - High-precision tooth dividing machine

Info

Publication number: CN113770269A
Application number: CN202110929498.XA
Authority: CN
Inventors: 熊加林
Original assignee: Ningbo Cheery Garden Tools Co ltd
Current assignee: Ningbo Cheery Garden Tools Co ltd
Priority date: 2021-08-13
Filing date: 2021-08-13
Publication date: 2021-12-10
Anticipated expiration: 2041-08-13
Also published as: CN113770269B

Abstract

The invention discloses a high-precision gear dividing machine which comprises a workbench, wherein the workbench is provided with a feeding station, a gear dividing station I, a turnover station, a gear dividing station II and a discharging station; the tooth dividing station I and the tooth dividing station II are respectively provided with a bedplate, a positioning mechanism, a clamping mechanism, a double-shaft sliding table and a knocking mechanism; the band saw blades are driven by the double-shaft sliding table to be arranged in a sawtooth mode or/and move to the tooth knocking position of the knocking mechanism at intervals; the workbench comprises a first grabbing mechanism, a second grabbing mechanism and a turnover mechanism, wherein a first grabbing mechanism is used for grabbing a band saw blade on a feeding station and placing a first tooth dividing station and a band saw blade on the first tooth dividing station and placing a turnover station, the turnover mechanism is used for turning over the band saw blade on the turnover station, the second grabbing mechanism is used for grabbing the band saw blade on the turnover station and placing a platen of a second tooth dividing station and grabbing the band saw blade on the second tooth dividing station and placing a discharging station, automatic feeding, positioning, tooth dividing and discharging are achieved, and tooth dividing precision of the tooth dividing machine is high.

Description

High-precision tooth dividing machine

Technical Field

The invention relates to the technical field of band saw blade processing equipment, in particular to a high-precision tooth dividing machine.

Background

The tooth division is to deflect the saw teeth 22 of the band saw blade 2 to two sides respectively so that the saw teeth 22 are not on one plane, as shown in fig. 1-2, the band saw blade 2 comprises a saw back 21 and the saw teeth 22 on the saw back 21, and the saw teeth 22 are divided into three categories: the fixed teeth 23, the right helical teeth 24 and the left helical teeth 25, the fixed teeth 23 and the saw back 21 do not deflect in the same plane, and the right helical teeth 24 and the left helical teeth 23 respectively bend towards two sides. The band saw blade 2 after tooth division has a cutting edge with the width wider than the thickness of the saw back, so that the saw gap can be widened, and the saw back is prevented from being broken due to the fact that the saw back reaches the fatigue limit too early due to overlarge friction force with a cut material when passing through a cutting seam.

The existing tooth separation of the band saw blade is generally completed by stamping a die, the back of the band saw blade is firstly clamped and fixed manually, and then an upper die and a lower die which are positioned at two sides of the band saw blade are respectively pressed to the band saw blade through a power device (such as a hydraulic cylinder), so that the tooth separation of the band saw blade is realized, but the structure has the following defects:

1. the existing tooth dividing machine needs to position the band saw blade manually, so that the automation degree is low, and the positioning precision and the positioning efficiency are also low;

2. when the size of the saw teeth or the tooth dividing mode changes (namely the arrangement sequence and the arrangement combination of the fixed teeth, the right helical teeth and the left helical teeth change), the die needs to be replaced, so that the production and processing cost of the die is increased, and the die needs to be disassembled and assembled, which is very inconvenient;

3. divide the tooth through last mould and bed die interact, divide tooth asymmetric problem about the band saw blade appears easily for it is unsatisfactory to divide tooth quality effect.

Disclosure of Invention

The invention aims to provide a high-precision tooth dividing machine, which realizes automatic feeding, positioning, tooth dividing and discharging, and controls the feeding speed of band saw blade sawteeth through a double-shaft sliding table, so that the tooth dividing mode of the band sawteeth is changed, and the structure has high automation degree and is very convenient and fast.

The technical purpose of the invention is realized by the following technical scheme: a high-precision gear dividing machine comprises a workbench, wherein the workbench is provided with a feeding station, a gear dividing station I, a turnover station, a gear dividing station II and a discharging station; the first tooth dividing station and the second tooth dividing station respectively comprise a bedplate for placing a band saw blade, a positioning mechanism for positioning the band saw blade, a clamping mechanism for fixing the band saw blade, a double-shaft sliding table for driving the bedplate to move along the X-axis direction and the Y-axis direction and a knocking mechanism for dividing teeth of the band saw blade; saw teeth of the band saw blades on the bedplate are arranged or/and move to the tooth knocking position of the knocking mechanism at intervals under the driving of the double-shaft sliding table; the workbench is further provided with a first grabbing mechanism, a second grabbing mechanism and a turnover mechanism, the band saw blades on the feeding station are grabbed and placed on a platen of the first tooth dividing station through the first grabbing mechanism, the band saw blades on the first tooth dividing station are grabbed and placed on the turnover station through the turnover mechanism, the band saw blades on the turnover station are turned over through the turnover mechanism, the band saw blades turned over on the turnover station are grabbed and placed on the platen of the second tooth dividing station through the second grabbing mechanism, and the band saw blades on the second tooth dividing station are grabbed and placed on the discharging station.

Further, positioning mechanism includes stopper, promotion subassembly I and promotion subassembly II, promotes subassembly I and promotes subassembly II and is located the both ends of band saw blade respectively, promote subassembly I and II cooperation actions of promotion subassembly in order to carry out Y axle direction location to the band saw blade on the platen, stopper fixed mounting is in the left end of platen, the material cylinder that supports sets up and is used for promoting the band saw blade to press to the stopper in order to carry out X axle direction location to the band saw blade in the right-hand member of platen.

Further, promote subassembly I including promoting cylinder I and locating plate, locating plate and material supporting cylinder pass through the mount and connect in the output of promoting cylinder I, the one end that the locating plate is close to the band saw blade is equipped with the bellying corresponding with the interior concave part of band saw blade, promote subassembly II including two sets of promotion cylinders II that the symmetry set up and connect in the ejector pad of promoting II outputs of cylinder.

Further, clamping mechanism is including fixed setting in the bottom plate of platen rear end, the front end of bottom plate is equipped with the fixing base, it has the clamp plate that is used for compressing tightly the band saw blade to articulate on the fixing base, the rear end of bottom plate is equipped with articulated seat, it compresses tightly the cylinder to rotate to be connected with on the articulated seat, the clamp plate rotates through the round pin axle and connects the output that compresses tightly the cylinder, the both ends of round pin axle are equipped with the connecting rod I who articulates in the fixing base.

Furthermore, a pressing block is arranged at one end, close to the band saw blade, of the pressing plate, the pressing block is of an arc-shaped structure corresponding to the band saw blade, and a groove extending along the arc direction of the pressing block is formed in the bottom of the pressing block.

Further, strike the mechanism and include supporting seat and motor, the one end fixed mounting that the supporting seat is close to the band saw blade has the kicking block that is located the band saw blade below, rotate on the supporting seat and install cam and dwang, the dwang is equipped with for the one end of kicking block and strikes the tooth head with the kicking block cooperation and strike, the middle part fixed mounting of dwang has the knock pin, the lower part butt cam of knock pin global, motor drive cam rotates to realize knocking the tooth head and strikes the tooth in order to drive the dwang rotation.

Furthermore, the supporting seat is provided with a supporting plate corresponding to the rear end of the rotating rod, one end of the rotating rod, which is close to the supporting plate, is connected with the supporting plate through a tension spring, and the joint of the tension spring and the supporting plate is higher than the joint of the tension spring and the rotating rod.

Furthermore, the upper end surface of the top block is an inclined surface or an arc-shaped surface, the inclined surface or the arc-shaped surface inclines downwards towards the direction of one side of the cam, and the tooth knocking head is arranged in a shrinking mode from two sides to the bottom.

Further, snatch mechanism one and snatch mechanism two and all include support arm and rotor arm, the pivot is installed to the support arm internal rotation, rotor arm fixed connection is in pivot one, the support arm is equipped with the driving piece that the drive rotor arm switches over the station, the tip of rotor arm is equipped with the lifting unit who is used for snatching the material subassembly I and the I oscilaltion of drive material subassembly of inhaling of band saw blade.

Further, tilting mechanism includes revolving cylinder and inhales material subassembly II, revolving cylinder's output is connected with pivot two, fixedly connected with crossbeam on the pivot two, install on the crossbeam and inhale material subassembly II, the position that the upset station corresponds the crossbeam is equipped with the groove of dodging that supplies the crossbeam and inhale material subassembly II and pass through.

Furthermore, the feeding station and the discharging station are provided with a plurality of guide posts for guiding the stacked band saw blades.

In conclusion, the invention has the following beneficial effects:

1. a high-precision tooth dividing machine is characterized in that a first grabbing mechanism is used for grabbing and placing a band saw blade on a feeding station on a platen of a first tooth dividing station, meanwhile, the band saw blade with teeth divided on the first tooth dividing station is grabbed and placed on a turnover station, the band saw blade on the turnover station is turned over through a turnover mechanism, and a second grabbing mechanism is used for grabbing and placing the band saw blade turned over on the turnover station on the platen of a second tooth dividing station and meanwhile, the band saw blade with teeth divided on the second tooth dividing station is grabbed and placed on a discharging station;

2. the teeth division of the band saw blade is realized through the matching of the double-shaft sliding table and the knocking mechanism, on the other hand, the tooth division mode of the band saw blade is changed by changing the feeding speed of the double-shaft sliding table driving the band saw blade, and compared with the change of a die, the structure has high automation degree and is very convenient and fast;

3. the top block located at the lower end of the band saw blade is fixedly arranged, the sawtooth of the band saw blade located on the top block is knocked by the knocking tooth head, and accurate tooth division of the band saw blade is realized by matching with the double-shaft sliding table, so that the tooth division quality is greatly improved.

Drawings

FIG. 1 is a schematic view of the construction of the band saw blade of the present invention.

Fig. 2 is a schematic view of a tooth division structure of the saw tooth of the present invention.

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is a schematic structural view of the positioning mechanism of the present invention.

Fig. 5 is a schematic view of the clamping mechanism of the present invention from a first perspective.

Fig. 6 is a structural schematic diagram of a second perspective of the clamping mechanism of the present invention.

FIG. 7 is a schematic diagram of the structure of the compact of the present invention.

Fig. 8 is a schematic structural view of a pushing assembly i of the present invention.

Fig. 9 is a schematic structural view of the knocking mechanism of the present invention.

Fig. 10 is a schematic structural diagram of a first gripping mechanism of the present invention.

Fig. 11 is a schematic view of the turnover mechanism of the present invention.

In the figure: 1. a work table; 11. a feeding station; 111. a limiting rod; 12. a first tooth grading station; 121. a platen; 1211. an arc-shaped groove; 122. a double-shaft sliding table; 1221. a slide plate; 13. turning over the station; 14. a gear grading station II; 15. a blanking station; 2. a band saw blade; 21. sawing the back; 22. saw teeth; 23. fixing teeth; 24. right helical teeth; 25. a left helical tooth; 3. a positioning mechanism; 31. a limiting block; 32. a pushing component I; 321. a pushing cylinder I; 322. positioning a plate; 3221. a boss portion; 33. a pushing component II; 331. a pushing cylinder II; 332. a push block; 34. a material supporting cylinder; 35. a connecting frame; 351. a slide plate; 36. a fixed mount; 4. a clamping mechanism; 41. a base plate; 42. a fixed seat; 43. pressing a plate; 44. a hinged seat; 45. a pressing cylinder; 46. a pin shaft; 47. a connecting rod I; 48. a connecting rod II; 49. briquetting; 491. a groove; 5. a knocking mechanism; 51. a supporting seat; 52. a motor; 53. a top block; 54. a cam; 55. rotating the rod; 56. a tapping head; 57. a knock pin; 58. a support plate; 59. a tension spring; 6. a first grabbing mechanism; 61. a support arm; 611. a limit screw; 612. a hydraulic shock absorber; 62. a rotating arm; 63. a rotating arm; 64. a first rotating shaft; 65. a drive member; 651. a connecting arm; 66. a material sucking component I; 67. a lifting assembly; 7. a second grabbing mechanism; 8. a turnover mechanism; 81. a rotating cylinder; 82. a material sucking component II; 83. a second rotating shaft; 84. a cross beam; 85. a turnover block I; 86. a turnover block II; 87. avoiding the groove.

Detailed Description

The invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 to 11, the high-precision gear dividing machine comprises a workbench 1, wherein the workbench 1 is provided with a feeding station 11, a first gear dividing station 12, a turnover station 13, a second gear dividing station 14 and a blanking station 15.

For convenience of explanation, the longitudinal direction of the band saw blade 2 is defined as the X-axis direction, the width direction of the band saw blade 2 is defined as the Y-axis direction, and the thickness direction of the band saw blade 2 is defined as the Z-axis direction, but the saw blade 22 of the present invention has a curved saw structure with a curvature, and the tooth dividing machine is also applicable to the straight-saw band saw blade 2.

The fixed right-hand member that sets up in workstation 1 of material loading station 11, unloading station 15 is fixed to be set up in the left end of workstation 1, and this material loading station 11 is used for depositing a plurality of raw and other materials (not dividing the band saw blade 2 of tooth promptly), and this unloading station 15 is used for depositing the band saw blade 2 of accomplishing branch tooth, and it is right for the convenience the band saw blade 2 piles up, sets up respectively on material loading station 11 and unloading station 15 to be used for carrying out the spacing gag lever post 111 of X axle and Y axle direction to the band saw blade 2 that corresponds, band saw blade 2 can constantly pile up in Z axle direction, and the setting up of this structure has improved space utilization greatly, is convenient for material loading and unloading simultaneously.

The first tooth dividing station 12 and the second tooth dividing station 14 respectively comprise a bedplate 121 for placing a band saw blade 2, a positioning mechanism 3 for positioning the band saw blade 2, a clamping mechanism 4 for fixing the band saw blade 2, a double-shaft sliding table 122 for driving the bedplate 121 to move along the X-axis direction and the Y-axis direction, and a knocking mechanism 5 for dividing teeth of the band saw blade 2; the striking mechanism 5 is located at the front end of the workbench 1, one end of the bedplate 121 close to the striking mechanism 5 is provided with an arc-shaped groove 4911211 corresponding to the shape of a bent saw, when the tooth dividing machine needs to divide a straight saw into teeth, only the bedplate 121 needs to be replaced, the double-shaft sliding table 122 is a conventional technical means, details are not described in the patent, the double-shaft sliding table 122 is provided with a sliding plate 1221 for supporting the bedplate 121, namely the double-shaft sliding table 122 drives the sliding plate 1221 to move in the X-axis direction and the Y-axis direction, so that the bedplate 121 fixed on the sliding plate 1221 moves synchronously with the sliding plate 1221, and the saw blades 2 on the bedplate 121 are driven by the double-shaft sliding table 122 to arrange or/and move at intervals to the tooth striking position of the striking mechanism 5 through the saw teeth 22 of the saw blades 2.

As shown in fig. 4 to 8, the positioning mechanism 3 includes a limiting block 31, a pushing assembly i 32 and a pushing assembly ii 33, the pushing assembly i 32 and the pushing assembly ii 33 are respectively located at two ends of the band saw blade 2, in the present invention, the pushing assembly i 32 is disposed at the front end of the band saw blade 2, the pushing assembly ii 33 is disposed at the rear end of the band saw blade 2, the pushing assembly i 32 and the pushing assembly ii 33 are cooperatively operated to perform Y-axis direction positioning on the band saw blade 2 on the platen 121, the limiting block 31 is fixedly mounted at the left end of the platen 121, and the material supporting cylinder 34 is disposed at the right end of the platen 121 and used for pushing the band saw blade 2 to press against the limiting block 31 to perform X-axis direction positioning on the band saw blade 2.

Specifically, the pushing assembly I32 comprises a pushing cylinder I321 and a positioning plate 322, the pushing cylinder I321 is fixedly arranged at the front end of the workbench 1 through a connecting frame 35, a sliding plate 351 is slidably arranged on the connecting frame 35, the lower part of the sliding plate 351 is connected with the output end of the pushing cylinder I321, the positioning plate 322 and the material resisting cylinder 34 are connected with the output end of the pushing cylinder I321 through a fixing frame 36, specifically, the fixing frame 36 is fixedly arranged at the position, close to one side of the bedplate 121, of the upper end of the sliding plate 351, one end of the positioning plate 322 close to the band saw blade 2 is provided with a convex part 3221 corresponding to the concave part of the band saw blade 2, when the band saw teeth 22 are straight saws, the positioning plate 322 can be replaced by a transverse vertical positioning plate 322, the material pushing cylinder 34 is arranged at the right side of the fixing frame 36, the pushing assembly II 33 comprises two groups of pushing cylinders II 331 which are symmetrically arranged and a pushing block 332 connected to the output ends of the pushing cylinders II 331.

When the positioning mechanism 3 acts, the I321 action of the pushing cylinder pushes the positioning plate 322 and the material abutting cylinder 34 to move towards one side close to the bedplate 121, the I321 of the pushing cylinder pushes the set position, the material abutting cylinder 34 acts to push the band saw blade 2 to be pressed against the limiting block 31 to position the band saw blade 2 in the X-axis direction, the II 331 action of the pushing cylinder pushes the band saw blade 2 to move towards one side of the positioning plate 322 to clamp the band saw blade 2 between the positioning plate 322 and the pushing block 332 in a positioning manner, and then the Y-axis direction of the band saw blade 2 is positioned, and through the arrangement, automatic positioning of the band saw blade 2 is achieved.

As shown in fig. 5 to 6, the two sets of clamping mechanisms 4 are symmetrically arranged on the left and right sides of the bedplate 121, and include a bottom plate 41 arranged at the rear end of the bedplate 121, in the present invention, the bottom plate 41 is fixedly mounted on the sliding plate 1221, the front end of the bottom plate 41 is provided with a fixing base 42, the fixing base 42 is hinged with a pressing plate 43 for pressing the band saw blade 2, the rear end of the bottom plate 41 is provided with a hinge base 44, the hinge base 44 is rotatably connected with a pressing cylinder 45, the pressing plate 43 is rotatably connected with the output end of the pressing cylinder 45 through a pin 46, specifically, two sides of the pressing plate 43 are hinged with connecting rods ii 48, the other ends of the connecting rods ii 48 are hinged with the pin 46, in order to ensure the stability of the operation of the pressing cylinder 45, two ends of the pin 46 are provided with connecting rods i 47 hinged with the fixing base 42, and the connecting rods i 47 are also hinged with the pin 46.

As shown in fig. 7, in order to ensure the clamping effect of the clamping mechanism 4, a pressing block 49 is provided at one end of the pressing plate 43 close to the band saw blade 2, the pressing block 49 is an arc-shaped structure corresponding to the band saw blade 2, a groove 491 extending along the arc-shaped direction is provided at the bottom of the pressing block 49, and the arrangement of the groove 491 ensures the stability when the pressing block 49 presses the band saw blade 2

After the positioning mechanism 3 finishes positioning, the pressing cylinder 45 acts to drive the pressing plate 43 and the pressing block 49 to clamp the band saw blade 2 downwards, and after the clamping action is finished, the pushing cylinder I321, the pushing cylinder II 331 and the material supporting cylinder 34 return to the original position.

As shown in fig. 9, the knocking mechanism 5 includes a supporting base 51 and a motor 52, wherein an ejector block 53 located below the band saw blade 2 is fixedly installed at one end of the supporting base 51 close to the band saw blade 2, an upper end surface of the ejector block 53 is an inclined surface or an arc surface, the inclined surface or arc-shaped surface is inclined downward toward the side of the cam 54, the cam 54 and the rotating lever 55 are rotatably mounted on the support base 51, one end of the rotating rod 55 opposite to the top block 53 is provided with a gear knocking head 56 which is matched with the top block 53 to knock, the striking head 56 is formed to be contracted from both sides to the bottom in order to reduce a contact area with the saw teeth 22 of the band saw blade 2 to increase a striking force, the middle part of the rotating rod 55 is fixedly provided with a top pin 57, the lower part of the top pin 57 is abutted against the circumferential surface of the cam 54, the motor 52 drives the cam 54 to rotate so as to drive the rotating rod 55 to rotate, so that the tooth knocking head 56 knocks teeth.

In order to maintain the tension and compactness of the rotating rod 55 during rotation, a support plate 58 is arranged at the rear end of the support seat 51 corresponding to the rotating rod 55, one end of the rotating rod 55 close to the support plate 58 is connected with the support plate 58 through a tension spring 59, and the connection position of the tension spring 59 and the support plate 58 is higher than the connection position of the tension spring 59 and the rotating rod 55.

As shown in fig. 10, the workbench 1 further includes a first grabbing mechanism 6, a second grabbing mechanism 7 and a turnover mechanism 8, the first grabbing mechanism 6 grabs and places the band saw blade 2 on the feeding station 11 on the platen 121 of the first tooth dividing station 12 and grabs and places the band saw blade 2 on the first tooth dividing station 12 on the turnover station 13, the turnover mechanism 8 turns over the band saw blade 2 on the turnover station 13, and the second grabbing mechanism 7 grabs and places the band saw blade 2 turned over on the turnover station 13 on the platen 121 of the second tooth dividing station 14 and grabs and places the band saw blade 2 on the second tooth dividing station 14 on the blanking station 15.

Specifically, the first grabbing mechanism 6 and the second grabbing mechanism 7 both comprise a supporting arm 61 and

rotating arms

62 and 63, a first rotating shaft 64 is installed in the supporting arm 61 in a rotating mode, the rotating

arms

62 and 63 are fixedly connected to the first rotating shaft 64, the supporting arm 61 is provided with a driving piece 65 for driving the rotating

arms

62 and 63 to switch stations, the driving piece 65 is an air cylinder, specifically, the driving piece 65 is hinged to the supporting arm 61 through a connecting arm 651, the output end of the driving piece 65 is hinged to the rotating

arms

62 and 63, and the upper end of the supporting arm 61 is provided with a limiting screw 611 for limiting the rotating

arms

62 and 63 and an oil pressure buffer 612 for buffering the supporting arm 61.

The tip of

rotor arm

62, 63 is equipped with the lifting unit 67 that is used for snatching the material subassembly I66 and the I66 oscilaltion of drive of inhaling of band saw blade 2, it is the sucking disc 82 structure to inhale material subassembly I66, lifting unit 67's output is equipped with the arc form supporting shoe that is used for fixed this sucking disc 82 structure, be equipped with the arc wall structure that two symmetries set up on the supporting shoe, through setting up the arc wall, be convenient for adjust the relative position of two sucking disc 82 structures.

The supporting arm 61 of the first grabbing mechanism 6 is used as the center of an included angle, the included angle formed by the position of the first tooth dividing station 12 when the first tooth dividing station is positioned with the sawtooth 22 and the feeding station 11 is equal to the included angle formed by the position of the first tooth dividing station 12 when the first tooth dividing station is positioned with the sawtooth 22 and the overturning station 13, in the invention, the supporting arm 61 of the second grabbing mechanism 7 is used as the center of the included angle, the included angle formed by the position of the second tooth dividing station 14 when the second tooth dividing station is positioned with the sawtooth 22 and the blanking station 15 is equal to the included angle formed by the position of the second tooth dividing station 14 when the second tooth dividing station is positioned with the overturning station 13, the included angle is also 90 degrees in the invention, meanwhile, the included angle between the rotating

arms

62 and 63 of the first grabbing mechanism 6 is 90 degrees, and the included angle between the rotating

arms

62 and 63 of the second grabbing mechanism 7 is also 90 degrees.

As shown in fig. 11, the turnover mechanism 8 includes a rotary cylinder 81 and a material suction assembly ii 82, an output end of the rotary cylinder 81 is connected with a second rotating shaft 83, the second rotating shaft 83 is fixedly connected with a beam 84, the beam 84 is provided with the material suction assembly ii 82, an avoiding groove 87 is provided at a position of the turnover station 13 corresponding to the beam 84 for the beam 84 and the material suction assembly ii 82 to pass through, in order to place the band saw blade 2, the turnover station 13 includes a first turnover block 85 and a second turnover block 86 arranged at intervals, the second rotating shaft 83 is arranged between the first turnover block 85 and the second turnover block 86, and the turnover mechanism 8 is specifically operated as follows: the material sucking component II 82 acts to suck the band saw blade 2 on the first turnover block 85 tightly, and the rotating cylinder 81 acts to rotate the rotating shaft for two 180 degrees, so that the band saw blade 2 on the first turnover block 85 is grabbed onto the second turnover block 86, and the turning over of the band saw blade 2 is further realized.

The working principle of the invention is as follows:

1. the striking frequency of the striking mechanism 5 is constant, and the feeding speed of the band saw blade 2 on the platen 121 is controlled by programming the driving motor 52 of the double-shaft sliding table 122, so that the saw teeth 22 set on the band saw blade 2 are struck;

2. the double-shaft slide table 122 drives the band saw blade 2 on the platen 121 at a constant feed speed, and the set saw teeth 22 on the band saw blade 2 are struck by programming the motor 52 of the striking mechanism 5 or designing the cam 54 to control the striking frequency of the striking mechanism 5.

The two modes can be selected in a tooth dividing mode of the band saw blade 2, the invention adopts the first mode, the band saw blade 2 on the bedplate 121 is driven by the double-shaft sliding table 122 to arrange or/and move the saw teeth 22 of the band saw blade 2 to the tooth knocking position of the knocking mechanism 5 at intervals; specifically, the tooth dividing mode of the band saw tooth 22 in the present invention is formed by arranging a plurality of identical units, each unit is composed of one right helical tooth 24, one left helical tooth 25 and four fixed teeth 23, and certainly, the unit can be composed of one right helical tooth 24 and one left helical tooth 25, or one right helical tooth 24, one left helical tooth 25 and one fixed tooth 23, the unit structures are more and not listed one by one, that is, different unit components can be realized by adjusting the feeding speed of the band saw blade 2, and further, different tooth dividing modes of the band saw blade 2 can be realized.

The invention has the following beneficial effects:

1. the band saw blade 2 on the feeding station 11 is grabbed and placed on the bedplate 121 of the tooth dividing station I12 through the grabbing mechanism I6, the band saw blade 2 with teeth divided on the tooth dividing station I12 is grabbed and placed on the overturning station 13, the band saw blade 2 on the overturning station 13 is overturned through the overturning mechanism 8, the band saw blade 2 overturned on the overturning station 13 is grabbed and placed on the bedplate 121 of the tooth dividing station II 14 through the grabbing mechanism II 7, and the band saw blade 2 with teeth divided on the tooth dividing station II 14 is grabbed and placed on the blanking station 15;

2. the teeth division of the band saw blade 2 is realized through the matching of the double-shaft sliding table 122 and the knocking mechanism 5, on the other hand, the feeding speed of the band saw blade 2 driven by the double-shaft sliding table 122 is changed to change the tooth division mode of the band saw blade 2, and compared with the change of a mold, the structure has high automation degree and is very convenient and fast;

3. the kicking block 53 that will be located the band saw blade 2 lower extreme is fixed to be set up, utilizes to strike the sawtooth head 56 and strikes the sawtooth 22 of the band saw blade 2 that is located on the kicking block 53 to realize taking the accurate branch tooth of band saw blade 2 through cooperating with biax slip table 122, improved the quality of dividing the tooth greatly.

The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.

Claims

1. The utility model provides a high accuracy divides tooth machine, includes workstation (1), its characterized in that: the workbench (1) is provided with a feeding station (11), a tooth dividing station I (12), a turning station (13), a tooth dividing station II (14) and a discharging station (15);

the first tooth dividing station (12) and the second tooth dividing station (14) respectively comprise a bedplate (121) for placing a band saw blade (2), a positioning mechanism (3) for positioning the band saw blade (2), a clamping mechanism (4) for fixing the band saw blade (2), a double-shaft sliding table (122) for driving the bedplate (121) to move along the X-axis direction and the Y-axis direction and a knocking mechanism (5) for dividing teeth of the band saw blade (2), and saw teeth (22) of the band saw blade (2) are arranged or/and moved at intervals to the tooth knocking position of the knocking mechanism (5) under the driving of the double-shaft sliding table (122);

the automatic feeding device is characterized in that the workbench (1) is further provided with a first grabbing mechanism (6), a second grabbing mechanism (7) and a turnover mechanism (8), a band saw blade (2) on the feeding station (11) is grabbed and placed on a bedplate (121) of the first tooth dividing station (12) and a band saw blade (2) on the first tooth dividing station (12) are grabbed and placed on the turnover station (13) through the first grabbing mechanism (6), the band saw blade (2) on the turnover station (13) is turned over through the turnover mechanism (8), and the band saw blade (2) turned over on the turnover station (13) is grabbed and placed on the bedplate (121) of the second tooth dividing station (14) and the band saw blade (2) on the second tooth dividing station (14) are grabbed and placed on the discharging station (15) through the second grabbing mechanism (7).

2. A high precision gear indexing machine according to claim 1, wherein: positioning mechanism (3) include stopper (31), support material cylinder (34), promote subassembly I (32) and promote subassembly II (33) and be located the both ends of band saw blade (2) respectively, promote subassembly I (32) and promote subassembly II (33) cooperation action in order to carry out Y axle direction location to band saw blade (2) on platen (121), stopper (31) fixed mounting is in the left end of platen (121), support material cylinder (34) and set up in the right-hand member of platen (121) and be used for promoting band saw blade (2) to press stopper (31) in order to carry out X axle direction location with band saw blade (2).

3. A high precision gear indexing machine according to claim 2, wherein: promote subassembly I (32) including promoting cylinder I (321) and locating plate (322), locating plate (322) and material cylinder (34) are connected in the output of promoting cylinder I (321) through mount (36) to the material, the one end that locating plate (322) are close to band saw blade (2) is equipped with protruding portion (3221) corresponding with the interior concave part of band saw blade (2), promote subassembly II (33) including two sets of promotion cylinders II (331) that the symmetry set up and connect in ejector pad (332) of promoting cylinder II (331) output.

4. A high precision gear indexing machine according to claim 1, wherein: clamping mechanism (4) including fixed bottom plate (41) that sets up in platen (121) rear end, the front end of bottom plate (41) is equipped with fixing base (42), articulated on fixing base (42) have be used for compressing tightly clamp plate (43) of band saw blade (2), the rear end of bottom plate (41) is equipped with articulated seat (44), it is connected with compressing tightly cylinder (45) to rotate on articulated seat (44), clamp plate (43) rotate through round pin axle (46) and connect the output that compresses tightly cylinder (45), the both ends of round pin axle (46) are equipped with I (47) of connecting rod articulated in fixing base (42).

5. A high precision gear indexing machine according to claim 4, wherein: one end of the pressing plate (43) close to the band saw blade (2) is provided with a pressing block (49), the pressing block (49) is of an arc structure corresponding to the band saw blade (2), and a groove (491) extending along the arc direction of the pressing block (49) is arranged at the bottom of the pressing block (49).

6. A high precision gear indexing machine according to claim 1, wherein: knocking mechanism (5) includes supporting seat (51) and motor (52), one end fixed mounting that supporting seat (51) is close to band saw blade (2) has kicking block (53) that is located band saw blade (2) below, rotate on supporting seat (51) and install cam (54) and dwang (55), dwang (55) are equipped with for the one end of kicking block (53) and strike tooth head (56) that strikes with kicking block (53) cooperation, the middle part fixed mounting of dwang (55) has knock pin (57), the lower part butt cam (54) of knock pin (57) global, motor (52) drive cam (54) rotate to drive dwang (55) and rotate the realization and strike tooth head (56) and strike the tooth.

7. A high precision gear indexing machine according to claim 6, wherein: the rear end that supporting seat (51) corresponds dwang (55) is equipped with extension board (58), the one end that dwang (55) is close to extension board (58) with extension board (58) are connected through extension spring (59), just the junction of extension spring (59) and extension board (58) is higher than the junction of extension spring (59) and dwang (55).

8. A high precision gear indexing machine according to claim 6, wherein: the upper end surface of the ejector block (53) is an inclined surface or an arc-shaped surface, the inclined surface or the arc-shaped surface inclines downwards towards one side of the cam (54), and the tooth knocking head (56) is arranged in a shrinking mode from two sides to the bottom.

9. A high precision gear indexing machine according to claim 1, wherein: snatch mechanism (6) and snatch mechanism two (7) and all include support arm (61) and rotor arm (62, 63), pivot one (64) are installed to support arm (61) internal rotation, rotor arm (62, 63) fixed connection is in pivot one (64), support arm (61) are equipped with drive rotor arm (62, 63) and switch driving piece (65) of station, the tip of rotor arm (62, 63) is equipped with and is used for snatching the lifting unit (67) that inhale material subassembly I (66) and the drive of band saw blade (2) inhale material subassembly I (66) oscilaltion.

10. A high precision gear indexing machine according to claim 1, wherein: tilting mechanism (8) include revolving cylinder (81) and inhale material subassembly II (82), the output of revolving cylinder (81) is connected with pivot two (83), fixedly connected with crossbeam (84) on pivot two (83), install on crossbeam (84) and inhale material subassembly II (82), the position that upset station (13) corresponds crossbeam (84) is equipped with and supplies crossbeam (84) and inhales that material subassembly II (82) pass through dodge groove (87).