CN110899798B

CN110899798B - Adjustable assembled disc milling cutter

Info

Publication number: CN110899798B
Application number: CN201911423631.3A
Authority: CN
Inventors: 陈君华; 陈金红; 陈秀丽
Original assignee: Jiangsu Husiba Intelligent Technology Co ltd
Current assignee: Jiangsu Husiba Intelligent Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-03-23
Anticipated expiration: 2039-12-31
Also published as: CN110899798A

Abstract

The invention discloses an adjustable assembled disc milling cutter, which relates to the field of disc milling cutters and comprises a first cutter disc, a second cutter disc and a plurality of blades arranged at the edges of the first cutter disc and the second cutter disc, wherein a T-shaped locking screw rod coaxially penetrates through the second cutter disc, the locking screw rod penetrates through the second cutter disc and is in threaded connection with the first cutter disc, the second cutter disc is smaller than the first cutter disc and is in a polygon prism shape, and a polygon groove matched with the first cutter disc is arranged on the first cutter disc. The invention has the effect of shortening the processing time by directly processing the step groove.

Description

Adjustable assembled disc milling cutter

Technical Field

The invention relates to the field of disc milling cutters, in particular to an adjustable assembly type disc milling cutter.

Background

A disc cutter is a rotating tool with one or more cutter teeth for milling. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

Chinese patent with publication number CN204135430U discloses a high-speed CBN indexable disc milling cutter, which comprises a cutter handle, a cutter head and a blade arranged on the cutter head, wherein the outer edge of the front end of the cutter head is circumferentially and uniformly distributed and provided with a series of cutter seats, the front end face of each cutter seat corresponding to the cutter head is provided with a radial adjusting groove, the edge side face of each cutter seat corresponding to the cutter head is provided with an axial adjusting groove and a pressing block groove, the bottoms of the radial adjusting groove, the axial adjusting groove and the pressing block groove are respectively provided with a screw hole, and the radial adjusting block, the axial adjusting block and the pressing block are respectively matched and arranged in the radial adjusting groove, the axial adjusting groove and the pressing block groove.

The high-speed CBN indexable disc milling cutter is used for processing planes, step surfaces and the like, when the step surfaces are processed, multiple times of feed are needed, the planes are processed firstly, and cutting is continued on the basis of the planes, so that multiple times of feed are needed, the processing efficiency is influenced, and the high-speed CBN indexable disc milling cutter is not suitable for mass production.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an adjustable assembly type disc milling cutter which has the advantages that a step groove can be directly machined, the assembly type disc milling cutter is suitable for mass production, and the machining time is shortened.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides an adjustable nodal pattern assembled disc milling cutter, includes first blade disc, second blade disc and installs a plurality of blades in first blade disc and second blade disc edge, the coaxial locking screw who wears to be equipped with T shape on the second blade disc, locking screw passes second blade disc and threaded connection on first blade disc, the second blade disc is less than first blade disc and the second blade disc is polygon prism shape, be equipped with on the first blade disc with second blade disc complex polygon groove.

Through the technical scheme, the first cutter disc and the second cutter disc synchronously rotate, and the second cutter disc exceeds the first cutter disc, so that the step grooves are directly machined through one-step forming, the machining time is shortened, and the machining efficiency is improved. The second cutter head is detachably connected to the first cutter head through the locking screw rod, so that different cutter heads are replaced according to the specific size of the step, and the processing universality is improved.

The invention is further configured to: the utility model discloses a cutter head, including first blade disc, the first blade disc is last to be offered the spout of I shape along the radial of first blade disc, it is equipped with the slider to slide in the spout, the connection can be dismantled on the slider to the blade, first blade disc internal rotation is connected with the carousel, the carousel is close to and is equipped with the helical tooth in the one side of slider, be equipped with on the slider close to the one side of carousel with helical tooth complex teeth of a cogwheel, the blade is fixed on the.

Through the technical scheme, the rotary table is rotated, and the sliding blocks are meshed with the rotary table through the gear teeth and the spiral teeth, so that all the sliding blocks move towards the position close to the circle center of the rotary table or towards the direction far away from the circle center of the rotary table, the effect of adjusting the cutting range of the first cutter disc is achieved, and stepped grooves with different sizes can be machined conveniently.

The invention is further configured to: the cutter is characterized in that one surface, far away from the sliding block, of the rotary disc is provided with an annular rack, a gear meshed with the rack is connected in the first cutter disc in a rotating mode, a connecting shaft extending out of the first cutter disc is arranged on the gear, and the connecting shaft and the gear are coaxial.

Through above-mentioned technical scheme, the carousel is located inside first blade disc, leads to unable direct rotation carousel like this, and in the first blade disc of gear position, the connecting axle extends first blade disc, is convenient for like this rotate the connecting axle in the outside of first blade disc, drives the carousel and rotates.

The invention is further configured to: the upper surface of first blade disc inlays and is equipped with two sets of brake blocks, the brake block sets up along the diameter direction symmetry of first blade disc, the upper surface elasticity butt of brake block and carousel, the upper surface of brake block is equipped with the pole of support, support pole threaded connection is on first blade disc.

Through the technical scheme, the first cutter disc needs to rotate at a high speed, the position of the first cutter disc is prevented from changing in the rotating process, the machining precision is further influenced, and meanwhile, the brake block is arranged for preventing the risk of the cutter blade colliding with the cutter. The brake block plays a role in locking the turntable and prevents the turntable from rotating randomly. The support rod is rotated to be abutted against the brake pad, and the brake pad is abutted against the rotary disc, so that the rotary disc is locked by increasing the friction force between the rotary disc and the brake pad.

The invention is further configured to: the first cutter head is provided with two mounting grooves, the two mounting grooves are symmetrically arranged on the first cutter head along the diameter direction of the first cutter head, one of the mounting grooves is internally provided with a dynamic balance block, and the dynamic balance block and the gear are in equal weight.

Through the technical scheme, the dynamic balance block and the gear are in central symmetry with the circle of the first cutter head, so that the center of gravity of the first cutter head is located at the circle center of the first cutter head, and the centrifugal force generated by the first cutter head is reduced to the greatest extent in the rotating process of the first cutter head.

The invention is further configured to: the first cutter head comprises a fixing portion and a connecting portion, the rotary disc is located between the fixing portion and the connecting portion, the sliding groove is formed in the connecting portion, a plurality of bolts are evenly distributed on the fixing portion in the circumferential direction, and the connecting portion is detachably connected to the fixing portion through the bolts.

Through the technical scheme, the first cutter disc is split, so that the rotary disc is conveniently installed in the first cutter disc. Meanwhile, when the rotary table is damaged, the rotary table is convenient to replace.

The invention is further configured to: the cutter is characterized in that a convex edge is arranged on the lower surface of the second cutter head in the radial direction of the second cutter head, a cutter groove used for installing a blade is formed in the convex edge in the radial direction of the second cutter head, and a locking nail used for locking the blade is connected to the convex edge in a threaded manner.

Through above-mentioned technical scheme, the staple is used for fixed blade. The blade can slide in the cutter groove, so that the cutting diameter of the second cutter head can be adjusted, and stepped grooves with different widths can be machined.

The invention is further configured to: the upper surface of the second cutter head is in threaded connection with a positioning screw rod along the axial direction of the second cutter head, and the upper end of the positioning screw rod is provided with a blind hole with an inner hexagon.

Through above-mentioned technical scheme, rotate positioning screw, positioning screw slides on the second blade disc, when positioning screw contradicts on the bottom surface of polygonal groove, the second blade disc will not retract in the polygonal groove this moment, and when positioning screw exceeded the length of second blade disc different, the length that the second blade disc surpassed first blade disc is different, and then played the effect that the second blade disc surpassed first blade disc length of adjusting, further can process out the different degree of depth step grooves.

In conclusion, the invention has the following beneficial effects:

1. the arrangement of the first cutter head and the second cutter head directly cuts a step groove, so that the processing time is shortened;

2. the cutting diameter of the first cutter head can be adjusted, so that the machining universality is improved;

3. the length of the first cutter head protruding from the second cutter head can be adjusted, so that step grooves with different depths can be machined;

4. the cutting range of the second cutter head can be adjusted, so that step grooves with different widths can be machined, and the machining capacity is improved.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment.

Fig. 2 is a structural schematic diagram of the first cutter disc and the second cutter disc of the present embodiment viewed from below.

Fig. 3 is a schematic structural view of the second cutter head of the present embodiment.

Fig. 4 is a schematic structural view of the interior of the first cutter head of the present embodiment.

Fig. 5 is a schematic structural diagram of the turntable, the gear and the brake pad of the embodiment.

Fig. 6 is a schematic structural diagram of the turntable and the slider of the present embodiment.

Reference numerals: 1. a first cutter head; 11. a fixed part; 12. a connecting portion; 13. a chute; 14. a slider; 15. a polygonal groove; 16. mounting grooves; 17. a dynamic balance block; 2. a second cutter head; 21. a rib; 22. a cutter groove; 23. locking nails; 24. positioning a screw rod; 25. locking the screw rod; 3. a blade; 4. a turntable; 40. helical teeth; 41. a gear; 42. a rack; 43. a connecting shaft; 44. a brake pad; 45. a support rod.

Detailed Description

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

Example (b): referring to fig. 1 and 2, an adjustable assembled disc milling cutter comprises a first cutter disc 1, a second cutter disc 2 and a plurality of blades 3 mounted on the first cutter disc 1 and the second cutter disc 2, wherein the blades 3 are circumferentially and uniformly distributed on the first cutter disc 1 and the second cutter disc 2. The second cutter disc 2 and the first cutter disc 1 are coaxially arranged, the lower surface of the first cutter disc 1 is provided with a polygonal groove 15, the second cutter disc 2 is in a polygonal prism shape, and the second cutter disc 2 exceeds the first cutter disc 1, so that when the first cutter disc 1 rotates, the first cutter disc 1 and the second cutter disc 2 synchronously rotate, and a step groove is machined in a workpiece.

Referring to fig. 2 and 3, six positioning screws 24 are arranged on the upper surface of the second cutter disc 2 along the axial circumferential thread of the second cutter disc 2, a T-shaped locking screw 25 is coaxially inserted into the second cutter disc 2, and the locking screw 25 penetrates through the second cutter disc 2 and is in threaded connection with the first cutter disc 1. When the positioning screw 24 is rotated, the extending lengths of the positioning screw 24 on the second cutter head 2 are different; when the positioning screw 24 is abutted against the bottom of the polygonal groove 15, the second cutter head 2 cannot move upwards, so that the second cutter head 2 protrudes out of the first cutter head 1 by different lengths, and the function of adjusting the depth of the step groove is achieved. The head of the upper end of the positioning screw rod 24 is provided with a hexagonal blind hole for inserting a wrench, so that the positioning screw rod 24 can be driven to rotate conveniently.

Referring to fig. 2 and 3, a rib 21 is arranged on the lower surface of the second cutter disc 2 along the radial circumference of the second cutter disc 2, a cutter groove 22 is formed in the rib 21 along the length direction of the rib 21, the blade 3 is inserted into the cutter groove 22, a locking pin 23 is screwed on the side wall of the rib 21 along the direction perpendicular to the blade 3, and the locking pin 23 penetrates through the side wall of the cutter groove 22 and contacts with the blade 3. When the locking pin 23 is rotated, the locking pin 23 abuts against the blade 3, preventing the blade 3 from being separated from the knife groove 22. Meanwhile, the blade 3 can slide, thereby playing a role in adjusting the cutting diameter of the second cutter head 2.

Referring to fig. 2 and 4, the first cutter head 1 includes a fixing portion 11 and a connecting portion 12, a plurality of bolts are uniformly distributed on the fixing portion 11 in the circumferential direction, and the connecting portion 12 and the fixing portion 11 are detachably connected through the bolts. A plurality of sliding grooves 13 are formed in the connecting portion 12 along the radial circumferential direction of the connecting portion 12, meanwhile, a polygonal groove 15 is formed in the connecting portion 12, the cross section of each sliding groove 13 is in an I shape, a sliding block 14 is arranged in each sliding groove 13 in a sliding mode, and the blades 3 are fixed on the sliding blocks 14. When the sliding block 14 slides in the sliding groove 13, after the first cutter disc 1 rotates, the cutting range of the first cutter disc 1 is different, and further, step grooves with different sizes can be machined conveniently.

Referring to fig. 4 and 6, a rotary plate 4 is rotatably connected between the connecting portion 12 and the fixing portion 11, the rotary plate 4 is in contact with the slider 14, a spiral tooth 40 is provided on a lower surface of the rotary plate 4, and a gear tooth engaged with the spiral tooth 40 is provided on an upper surface of the slider 14. When the rotating disk 4 is rotated, all the sliding blocks 14 move in the sliding grooves 13 in the direction close to the center of the rotating disk 4 or away from the center of the rotating disk 4 at the same time.

Referring to fig. 4 and 5, an annular rack 42 is disposed on the upper surface of the turntable 4, a gear 41 engaged with the rack 42 is rotatably connected to the fixing portion 11, a connecting shaft 43 vertically extending out of the fixing portion 11 is disposed on the gear 41, and the connecting shaft 43 is coaxially welded to the gear 41, so that the turntable 4 can be driven to rotate by rotating the connecting shaft 43, and the turntable 4 can be driven to rotate from the outside.

Referring to fig. 4 and 5, the fixing portion 11 is provided with two mounting grooves 16, the two mounting grooves 16 are symmetrically distributed on the fixing portion 11 along the diameter of the fixing portion 11, the gear 41 is mounted in one of the mounting grooves 16, the dynamic balance weight 17 is fixedly arranged in the other mounting groove 16, and the weight of the dynamic balance weight 17 is the same as that of the gear 41, so that the first cutter head 1 does not generate centrifugal force in the rotating process, and the stability of the first cutter head 1 in the rotating process is improved.

Referring to fig. 4 and 5, two brake pads 44 are disposed on the upper surface of the fixing portion 11, the two brake pads 44 are disposed on the fixing portion 11 in a central symmetry manner, the center of symmetry is the center of the fixing portion 11, the brake pads 44 abut against the upper surface of the turntable 4, meanwhile, the upper surface of the brake pads 44 is provided with a retaining rod 45, and the retaining rod 45 is screwed on the fixing portion 11. The resisting rod 45 is rotated to enable the brake block 44 to elastically resist against the rotary disc 4, so that the rotary disc 4 is limited to rotate, and the situation that the position of the sliding block 14 is changed due to the rotation of the rotary disc 4 in the cutting process, and the workpiece or the blade 3 is damaged is prevented. When the slide 14 needs to be adjusted, the abutting rod 45 is loosened, and the connecting shaft 43 and the gear 41 are rotated.

The implementation principle of the embodiment is as follows:

1. the first cutter head 1 is adjusted: the connecting shaft 43 and the gear 41 are rotated, so that the rotating disc 4 is driven to rotate, and after the rotating disc 4 rotates, all the sliding blocks 14 are driven to move simultaneously, so that the cutting range of the first cutter disc 1 is adjusted; after the position of the rear sliding block 14 is adjusted, the resisting rod 45 is rotated, and the brake block 44 plays a braking role on the rotary disc 4;

2. the adjusting process of the second cutter head 2: the position of the blade 3 in the cutter groove 22 is firstly adjusted, so that the cutting range of the second cutter disc 2 is adjusted; then, the positioning screw 24 is rotated to adjust the length of the second cutter head 2 protruding out of the first cutter head 1, so that the function of adjusting the depth of the stepped groove is achieved, and finally, the second cutter head 2 is fixed on the first cutter head 1 through the locking screw 25.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An adjustable assembled disc milling cutter which characterized in that: the novel cutter head comprises a first cutter head (1), a second cutter head (2) and a plurality of blades (3) arranged at the edges of the first cutter head (1) and the second cutter head (2), a T-shaped locking screw rod (25) coaxially penetrates through the second cutter head (2), the locking screw rod (25) penetrates through the second cutter head (2) and is in threaded connection with the first cutter head (1), the second cutter head (2) is smaller than the first cutter head (1) and the second cutter head (2) is in a polygon shape, and a polygon groove (15) matched with the second cutter head (2) is formed in the first cutter head (1);

the utility model discloses a cutter head, including first blade disc (1), first blade disc (1) is gone up and is radially seted up spout (13) of I shape along first blade disc (1), it is equipped with slider (14) to slide in spout (13), connection on slider (14) can be dismantled in blade (3), first blade disc (1) internal rotation is connected with carousel (4), be equipped with on the one side that carousel (4) are close to slider (14) helical tooth (40), be equipped with on slider (14) the one side that is close to carousel (4) and spiral tooth (40) complex teeth of a cogwheel, blade (3) are fixed on slider (14).

2. The adjustable assembly disc mill according to claim 1, wherein: be equipped with annular rack (42) on carousel (4) the one side of keeping away from slider (14), first blade disc (1) internal rotation is connected with gear (41) with rack (42) meshing, be equipped with connecting axle (43) that extend first blade disc (1) on gear (41), connecting axle (43) and gear (41) are coaxial upward.

3. The adjustable assembly disc mill according to claim 2, wherein: the upper surface of first blade disc (1) inlays and is equipped with two sets of brake block (44), the diameter direction symmetry setting along first blade disc (1) is followed in brake block (44), the upper surface elasticity butt of brake block (44) and carousel (4), the upper surface of brake block (44) is equipped with and supports pole (45), support pole (45) threaded connection is on first blade disc (1).

4. The adjustable assembly disc mill according to claim 3, wherein: set up two mounting grooves (16) on first blade disc (1), two on mounting groove (16) set up first blade disc (1) along the diametric symmetry of first blade disc (1), one of them be equipped with dynamic balance piece (17) in mounting groove (16), dynamic balance piece (17) and gear (41) etc. are heavy.

5. The adjustable assembly disc mill according to claim 4, wherein: first blade disc (1) includes fixed part (11) and connecting portion (12), carousel (4) are located between fixed part (11) and connecting portion (12), spout (13) are seted up on connecting portion (12), a plurality of bolts of circumference equipartition on fixed part (11), connecting portion (12) can be dismantled through the bolt and connect on fixed part (11).

6. The adjustable assembly disc mill according to claim 1, wherein: the cutter comprises a cutter head (2) and is characterized in that a rib (21) is arranged on the lower surface of the second cutter head (2) along the radial direction of the second cutter head (2), a cutter groove (22) used for installing a blade (3) is radially arranged on the rib (21) along the radial direction of the second cutter head (2), and a locking nail (23) used for locking the blade (3) is connected to the rib (21) in a threaded manner.

7. The adjustable assembly disc mill according to claim 6, wherein: the upper surface of the second cutter head (2) is in threaded connection with a positioning screw rod (24) along the axial direction of the second cutter head (2), and a blind hole with an inner hexagon is formed in the upper end of the positioning screw rod (24).