CN211708130U

CN211708130U - Cutter with conveniently replaced blade

Info

Publication number: CN211708130U
Application number: CN202020116859.XU
Authority: CN
Inventors: 张爱云
Original assignee: Shanghai Kaisidadao Precision Electronics Manufacturing Co ltd
Current assignee: Shanghai Kaisidadao Precision Electronics Manufacturing Co ltd
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-10-20
Anticipated expiration: 2030-01-17

Abstract

The utility model relates to a conveniently change cutter of blade, it includes the cutting edge, the one end integrated into one piece of cutting edge has the cutter arbor, the cover is equipped with the casing on the cutter arbor, be provided with on the casing with the cutter arbor can dismantle, install the fixed subassembly on the casing. The utility model has the advantages of with the help of the mounting with cutter demountable installation on the casing to the convenience of cutter installation dismantlement has been promoted, and the manufacturing cost of shaping product has been reduced.

Description

Cutter with conveniently replaced blade

Technical Field

The utility model belongs to the technical field of the technique of cutter and specifically relates to a conveniently change cutter of blade.

Background

A tool is a tool used for cutting machining in machine manufacturing. Most knives are machine, but also hand-held. Since tools used in machine manufacturing are basically used for cutting metal materials, the term "tool" is generally understood to mean a metal cutting tool. The cutting tools for cutting wood are called woodworking tools.

The existing Chinese patent with publication number CN204953988U discloses a drilling and milling integrated cutter: the cutting tool comprises a tool handle and a tool body, wherein a drill tip part of the tool body comprises a main cutting edge, a chisel edge and a side milling edge of the tool body; the main cutting edge has a sharp rake angle and a double relief angle.

The drill point sharp angle formed by the main cutting edge can be manufactured and changed according to actual processing requirements, so that the processing centering of the hole can be realized, and the hole can be drilled, expanded, reamed, milled, chamfered and countersunk. However, the drilling and milling integrated cutter is an integrated cutter, the cutter head of the cutter belongs to a quick-wear part, when the integrated cutter or the cutter head of the cutter inlaid with hard alloy is damaged, the replacement cost is high, different cutters are needed according to different required processing procedures, and therefore cutters used in different procedures need to be manufactured, the manufacturing cost of the cutter is increased, and the production cost of a formed product is further increased.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a conveniently change cutter of blade, with the help of the mounting with cutter demountable installation on the casing to promoted the convenience that the cutter installation was dismantled, and reduced the replacement cost, owing to only need change cutting edge and cutter arbor, thereby reduced the manufacturing cost of shaping product admittedly.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a cutter of blade is conveniently changed, includes the cutting edge, the one end integrated into one piece of cutting edge has the cutter arbor, the cover is equipped with the casing on the cutter arbor, is provided with on the casing and fixes the fixed subassembly on the casing with cutter arbor demountable installation.

Through adopting above-mentioned technical scheme, install the cutter dismantlement on the casing with the help of the mounting, promoted the convenience of cutter cutting edge installation dismantlement to reduce replacement cost, owing to only need change cutting edge and cutter arbor, thereby the manufacturing cost of solid reduction shaping product.

The present invention may be further configured in a preferred embodiment as: the fixed subassembly includes parallel key and mounting, the mounting groove has been seted up on the casing, the mounting groove has been seted up on being close to the inside wall of its arbitrary one end, the keyway sets up along mounting groove length direction, parallel to along the cutter arbor axial on the parallel with of length direction of parallel key, the cutter arbor runs through to the one end that deviates from the keyway from the one end that the keyway was seted up to the one end that the cutter blade was close to the cutting edge from the mounting groove, parallel key and keyway clearance fit, the mounting is located the one end that is close to the keyway on the casing.

Through adopting above-mentioned technical scheme, in operation, the staff runs through the cutter arbor the mounting groove, thereby the parallel key has restricted the cutter arbor with keyway clearance fit and has rotated in the mounting groove to promote the stability of cutter arbor installation in the casing.

The present invention may be further configured in a preferred embodiment as: the mounting groove has been seted up on the inside wall that the mounting groove is close to the one end of keyway, the embedded groove is with the same axis of mounting groove, the radius of embedded groove is greater than the radius that the concentric circles was constituteed to mounting groove axle center to keyway diapire, the mounting includes installation axle and fixed plate, installation axle integrated into one piece sets up on a side of fixed plate, the installation axle passes through screw-thread fit fixed mounting with the embedded groove in the embedded groove.

Through adopting above-mentioned technical scheme, pass through the one end that the thread tightening is close to the keyway at the embedding mounting at the casing to fix the installation pole in the casing, thereby reduce the phenomenon emergence that the installation pole deviates from in the casing, thereby promoted the stability of cutter arbor installation in the casing.

The present invention may be further configured in a preferred embodiment as: the cutter bar fixing device is characterized in that a tight hole perpendicular to the axial direction of the cutter bar is formed in one side wall, away from the flat key, of the cutter bar, a fixing groove is formed in the casing from the outer side wall of the casing to the inner side wall of the mounting groove in a penetrating mode, the fixing assembly further comprises a fixing pin, the fixing pin penetrates through the fixing groove from the outer side wall of the casing to the mounting groove, the end portion, penetrating through the mounting groove, of the fixing pin abuts against the tight hole, and the fixing pin abuts against the mounting rod on the inner side.

Through adopting above-mentioned technical scheme, in the work, the staff supports the installation pole tightly in the mounting groove with the help of the fixed pin to reduced the cutter and taken place the phenomenon of rocking when carrying out cutting work, thereby promoted the holistic stability of cutter.

The present invention may be further configured in a preferred embodiment as: the inner side wall of the fixing groove is provided with a positioning hole, an elastic positioning bead is arranged on the positioning pin, and the elastic positioning bead is clamped in the positioning hole.

Through adopting above-mentioned technical scheme, in the work, the staff presses the locating pin into the fixed slot, and when the position of elastic positioning pearl to locating hole, the elastic ball bounced and the joint was in the locating hole to fix the fixed pin in the fixed slot, help promoting the convenience of locating pin installation.

The present invention may be further configured in a preferred embodiment as: the fixed slot deviates from and has seted up the joint groove on the one side inside wall of mounting groove, the fixed pin deviates from the one end that runs through the fixed slot and is fixed with fixed cover, the inside wall of the fixed cover of fixed pin passes through the threaded fixation on the inside wall of fixed cover, the lateral wall and the joint inslot lateral wall threaded connection of fixed cover will fix fixed cover in the joint groove.

Through adopting above-mentioned technical scheme, press the fixed slot with the fixed pin when the staff, then rotate fixed cover, fixed cover and fixing bolt screw-thread fit, fixed cover and joint groove screw-thread fit to help promoting the stability of fixed pin installation in the fixed slot.

The present invention may be further configured in a preferred embodiment as: the upper side that lies in the locating hole on the casing has seted up the dismantlement groove, the dismantlement groove runs through the locating hole, wear to be equipped with adjusting bolt from the direction of casing lateral wall to locating hole in the dismantlement groove, adjusting bolt threaded fixation is in the dismantlement groove.

Through adopting above-mentioned technical scheme, when needs are dismantled the fixed pin, unscrew fixed cover earlier, then rotate adjusting bolt, when adjusting bolt supports tightly on the spring location pearl, the spring location pearl withdraws from the locating hole under the effect of pressure, then pulls out the fixed pin to help promoting the convenience that the staff dismantled the fixed pin.

The present invention may be further configured in a preferred embodiment as: the fixing pin is provided with a mounting hole, and the side of the elastic positioning bead, which deviates from the spring bead, is fixedly mounted on the fixing pin through threads.

Through adopting above-mentioned technical scheme, the elastic positioning pearl passes through the screw thread to be installed on the fixed pin, when the elastic positioning pearl damaged, helps promoting the convenience that the staff dismantled the elastic positioning pearl from the fixed pin.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the cutter is detachably mounted on the shell by virtue of the fixing piece, so that the mounting and dismounting convenience of the cutting edge of the cutter is improved, the replacement cost is reduced, and the manufacturing cost of a molded product is reduced due to the fact that only the cutting edge and the cutter bar need to be replaced;

2. one end through lieing in on the casing and being close to the keyway sets up the mounting, and the fixed pin supports the installation pole tightly on the inside wall of mounting groove, deviates from the one end that runs through the fixed slot at the fixed pin and is fixed with fixed cover, helps promoting the cutter in the stability of carrying out the cutting operation.

Drawings

FIG. 1 is a schematic axial view of a tool of the present embodiment, which is primarily intended to facilitate blade replacement;

FIG. 2 is an exploded view of the present embodiment, primarily embodying a tool for facilitating blade replacement;

FIG. 3 is a cross-sectional view taken along the plane A-A of FIG. 2, which mainly shows the structure of the housing;

fig. 4 is a sectional view taken along the plane B-B of fig. 2, which mainly shows the structure of the housing.

Reference numerals: 1. a cutting edge; 2. a cutter bar; 21. abutting the hole; 3. a housing; 31. mounting grooves; 32. a groove is embedded; 33. fixing grooves; 331. a clamping groove; 34. positioning holes; 35. disassembling the groove; 36. adjusting the bolt; 4. a fixing assembly; 41. installing a shaft; 42. a fixing plate; 43. a flat bond; 44. a keyway; 5. a fixing pin; 51. an elastic positioning bead; 52. mounting holes; 53. and (4) fixing sleeves.

Detailed Description

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

Referring to fig. 1 and 2, for the utility model discloses a conveniently change cutter of blade, including cutting edge 1, cutter arbor 2 and casing 3, cutter arbor 2 integrated into one piece sets up in the arbitrary one end of cutting edge 1, and cutter arbor 2 runs through and fixes in casing 3, is provided with on the casing 3 to be used for fixing the fixed subassembly 4 on casing 3 with the installation of cutter arbor 2.

During operation, the staff penetrates the cutter arbor 2 into the shell 3, and then the staff fixes the cutter arbor 2 in the shell 3 by means of the fixing component 4.

Referring to fig. 2 and 3, a mounting groove 31 axially disposed along the cutter bar 2 is formed in the housing 3, an insertion groove 32 is formed in an inner side wall of the mounting groove 31 close to one end of the key groove 44, the insertion groove 32 and the mounting groove 31 have the same axis, and a radius of the insertion groove 32 is greater than a radius of the mounting groove 31, the fixing assembly 4 includes a mounting shaft 41 and a fixing plate 42, the mounting shaft 41 is integrally formed on a side surface of the fixing plate 42, and the mounting shaft 41 and the insertion groove 32 are fixedly mounted in the insertion groove 32 through thread fit.

Fixed subassembly 4 still includes flat key 43 and keyway 44, and keyway 44 has been seted up from upwards to the roof of embedded groove 32 down, and keyway 44 sets up along mounting groove 31 length direction, and flat key 43 integrated into one piece sets up on cutter arbor 2, and the length direction of flat key 43 is on a parallel with the cutter arbor 2 axial, and cutter arbor 2 is close to the one end that cutting edge 1 was seted up keyway 44 from mounting groove 31 and runs through to the one end that deviates from keyway 44, flat key 43 and keyway 44 clearance fit.

In operation, the staff runs through the installation groove 31 with the cutter arbor 2 and the cutting edge 1, and the flat key 43 on the cutter arbor 2 cooperates with the keyway 44 and restricts the cutter arbor 2 and rotate in the installation groove 31, and then the staff rotates the fixed plate 42 and installs the installation axle 41 in the embedded groove 32 through the screw thread to fix the cutter arbor 2 in the casing 3 steadily.

Keep away from on the cutter arbor 2 one side lateral wall of parallel key 43 and seted up the axial tight hole 21 that supports of perpendicular cutter arbor 2, it has fixed slot 33 to link up from the lateral wall of casing 3 to the inside wall of mounting groove 31 on the casing 3, fixed subassembly 4 still includes fixed pin 5, fixed pin 5 runs through from the lateral wall of casing 3 to mounting groove 31 in fixed slot 33, the tip that fixed pin 5 runs through mounting groove 31 supports tightly in supporting tight hole 21, fixed pin 5 will install the pole and support tightly on the inside wall of mounting groove 31. The fixing pin 5 is provided with a mounting hole 52, an elastic positioning bead 51 is arranged in the mounting hole 52, the side, deviating from the spring bead, of the elastic positioning bead 51 is fixedly mounted on the fixing pin 5 through threads, a positioning hole 34 is formed in the inner side wall of the fixing groove 33, and the elastic positioning bead 51 is clamped in the positioning hole 34.

Referring to fig. 2 and 4, the clamping groove 331 is opened on the one side inside wall that the fixed groove 33 deviates from the mounting groove 31, the one end that the fixed pin 5 deviates from and runs through the fixed groove 33 is fixed with fixed cover 53, the inside wall of the fixed cover 53 of the fixed pin 5 passes through the threaded fixation on the inside wall of the fixed cover 53, the outside wall of the fixed cover 53 is fixed with the fixed cover 53 in the clamping groove 331 with the threaded connection of the inside wall of the clamping groove 331. The shell 3 is provided with a dismounting groove 35 at one side of the positioning hole 34 departing from the fixing groove 33, the axial level of the dismounting groove 35 is perpendicular to the axial direction of the fixing groove 33, the dismounting groove 35 penetrates through the positioning hole 34, and an adjusting bolt 36 is arranged in the dismounting groove 35 in a penetrating manner from the outer side wall of the shell 3 to the mounting groove 31. The adjusting bolt 36 is screwed in the detaching slot 35.

In operation, the worker pushes the positioning pin into the fixing groove 33, and when the elastic positioning bead 51 reaches the position of the positioning hole 34, the elastic bead springs up and snaps into the positioning hole 34, thereby fixing the fixing pin 5 in the fixing groove 33. When the staff presses the fixed pin 5 into the fixed slot 33, then rotates the fixed sleeve 53, the fixed sleeve 53 is in threaded fit with the fixing bolt, and the fixed sleeve 53 is in threaded fit with the clamping slot 331, thereby stably installing the fixed pin 5 in the fixed slot 33. When the fixing pin 5 needs to be detached, the worker unscrews the fixing sleeve 53, then rotates the adjusting bolt 36, when the adjusting bolt 36 abuts against the spring positioning ball, the spring positioning ball withdraws from the positioning hole 34 under the action of pressure, and then the worker pulls out the fixing pin 5 from the fixing groove 33.

The implementation principle of the embodiment is as follows: the operator penetrates the cutter bar 2 and the cutting edge 1 through the mounting groove 31, the flat key 43 on the cutter bar 2 is matched with the key groove 44 to limit the rotation of the cutter bar 2 in the mounting groove 31, and then the operator rotates the fixing plate 42 to install the mounting shaft 41 in the embedded groove 32 through threads, so that the cutter bar 2 is stably fixed in the shell 3. The worker presses the positioning pin into the fixing groove 33, and when the elastic positioning bead 51 reaches the position of the positioning hole 34, the elastic bead springs up and snaps into the positioning hole 34, thereby fixing the fixing pin 5 in the fixing groove 33. When the staff presses the fixed pin 5 into the fixed slot 33, then rotates the fixed sleeve 53, the fixed sleeve 53 is in threaded fit with the fixing bolt, and the fixed sleeve 53 is in threaded fit with the clamping slot 331, thereby stably installing the fixed pin 5 in the fixed slot 33. When the fixing pin 5 needs to be disassembled, the fixing sleeve 53 is firstly unscrewed by a worker, then the adjusting bolt 36 is rotated, when the adjusting bolt 36 abuts against the spring positioning ball, the spring positioning ball is withdrawn from the positioning hole 34 under the action of pressure, then the fixing pin 5 is pulled out of the fixing groove 33 by the worker, and finally the fixing plate 42 is rotated by the worker to disassemble the mounting shaft 41, so that the cutting edge 1 and the cutter bar 2 are disassembled from the shell 3.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A cutter convenient for replacing blades comprises a cutting edge (1), and is characterized in that: a cutter bar (2) is integrally formed at one end of the cutting edge (1), a shell (3) is sleeved on the cutter bar (2), and a fixing component (4) which detachably installs the cutter bar (2) on the shell (3) is arranged on the shell (3); fixed subassembly (4) include parallel key (43) and mounting, mounting groove (31) have been seted up on casing (3), keyway (44) have been seted up on mounting groove (31) are close to the inside wall of its arbitrary one end, mounting groove (31) length direction sets up is followed in keyway (44), parallel key (43) integrated into one piece sets up on cutter arbor (2), the length direction of parallel with cutter arbor (2) axial of parallel key (43), the one end that cutter arbor (2) are close to cutting edge (1) is run through to the one end that deviates from keyway (44) from the one end that keyway (44) were seted up in mounting groove (31), parallel key (43) and keyway (44) clearance fit, the mounting is located the one end that is close to keyway (44) on casing (3).

2. The tool of claim 1, wherein the tool is adapted to facilitate changing the cutting insert, the tool further comprising: the utility model provides a fixing piece, including mounting groove (31), mounting groove (32), embedded groove (32) and mounting groove (31) coaxial line, the radius of embedded groove (32) is greater than the radius of the concentric circles that constitutes of mounting groove (31) axle center to keyway (44) diapire, the mounting includes installation axle (41) and fixed plate (42), installation axle (41) integrated into one piece sets up on a side of fixed plate (42), installation axle (41) and embedded groove (32) are through screw-thread fit fixed mounting in embedded groove (32).

3. The tool of claim 1, wherein the tool is adapted to facilitate changing the cutting insert, the tool further comprising: keep away from on cutter arbor (2) one side lateral wall of parallel key (43) and seted up perpendicular cutter arbor (2) axial hole (21) that supports, it has fixed slot (33) to link up from the lateral wall of casing (3) to the inside wall of mounting groove (31) on casing (3), fixed subassembly (4) still include fixed pin (5), fixed pin (5) run through fixed slot (33) from the lateral wall of casing (3) to mounting groove (31), the tip that fixed pin (5) run through mounting groove (31) supports tightly in supporting hole (21), fixed pin (5) support the installation pole tightly on the inside wall of mounting groove (31).

4. The tool of claim 3, wherein the tool is adapted to facilitate changing the cutting insert, and further comprising: the inner side wall of the fixing groove (33) is provided with a positioning hole (34), an elastic positioning bead (51) is arranged on the positioning pin, and the elastic positioning bead (51) is clamped in the positioning hole (34).

5. The tool of claim 4, wherein the tool is adapted to facilitate changing the cutting insert, and further comprising: fixed slot (33) deviate from and seted up joint groove (331) on the one side inside wall of mounting groove (31), the one end that fixed pin (5) deviate from and run through fixed slot (33) is fixed with fixed cover (53), fixed pin (5) inside wall passes through the screw fixation on the inside wall of fixed cover (53), the lateral wall and the joint groove (331) inside wall threaded connection of fixed cover (53) will fix fixed cover (53) in joint groove (331).

6. The tool of claim 4, wherein the tool is adapted to facilitate changing the cutting insert, and further comprising: the utility model discloses a quick-witted structure, including casing (3), locating hole (34) are located to the upside of casing (3) and have been seted up disassembly groove (35), disassembly groove (35) run through locating hole (34), from casing (3) lateral wall to the direction of locating hole (34) in disassembly groove (35) wear to be equipped with adjusting bolt (36), adjusting bolt (36) threaded fixation is in disassembly groove (35).

7. The tool of claim 5, wherein the tool is adapted to facilitate changing the cutting insert, and further comprising: the fixing pin (5) is provided with a mounting hole (52), and one side of the elastic positioning bead (51) deviating from the spring bead thereof is fixedly mounted on the mounting hole (52) through threads.