CN212858701U - Knife sleeve push-out type chain type tool magazine - Google Patents

Abstract

The utility model relates to a knife pouch push-out formula chain tool magazine aims at providing a simple structure, and the structure space is little, the motion precision is high, and the tool changing is fast, operates steadily, and the vibration is little, longe-lived, and use cost is low, and the adjustment is convenient, uses nimble chain tool magazine structure. The chain mechanism comprising a plurality of knife sleeves is externally arranged on the annular guide rail and can rotate along the annular guide rail under the action of the chain driving unit; the knife pouch ejecting device is erected above the chain mechanism and is arranged on the base through the ejecting mounting plate, and the knife pouch can be ejected out of the chain mechanism to perform automatic knife changing or manual knife installing.

Description

Knife sleeve push-out type chain type tool magazine

Technical Field

The utility model belongs to the machine tool accessory field, in particular to broach shell pushes away formula chain tool magazine.

Background

The tool magazine is a necessary accessory of a numerical control machining center, the tool magazine with high precision, high performance and high reliability has important significance for a numerical control machining machine tool, and the chain type tool magazine is widely applied to the machining center due to the characteristic of large capacity. The existing chain type tool magazine mostly adopts the structural forms of a sleeve roller chain and a hollow roller chain, a certain number of tool sleeves are fixed on the chain through additional parts or roller hollows on the surface of the chain, the chain is driven by a chain wheel, and the structure is limited by the motion form of chain driving, has a complex structure, cannot ensure the motion precision and cannot obtain higher running linear velocity, and has the defects of large vibration, large noise, short service life and the like. The link unit in the chain structure is usually in a single cutter interface type, the expansibility of the cutter handle is poor, the whole chain structure needs to be replaced when the interface type is replaced, and the cost is high. The problems of small operation space, inconvenience in operation and the like exist in manual tool assembly due to the influence of chain pitch, and meanwhile, in order to avoid interference, the existing chain type tool magazine needs to be subjected to various tool preparation actions such as tool taking, overturning, translation and the like during tool changing to change the tool so as to change the tool by a manipulator, so that the structure is complex, the requirement on the structure space is high, the tool changing action is complex, and the tool changing speed of a machine tool is greatly restricted; in addition, due to the influence of the installation form of the existing knife sleeve and the locking form of the knife handle, potential safety hazards such as throwing out of the knife handle and the like easily occur in the turning motion process of the knife feeding mechanism. In addition, the cutter feeding mechanism of the existing chain type tool magazine is usually designed to be a fixed position, the requirement on the structural space of a machine tool is high, the overall layout of the machine tool is not facilitated, and the universality is poor.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a simple structure, the structure space is little, the motion precision is high, and the tool changing is fast, operates steadily, and the vibration is little, and is longe-lived, and use cost is low, and the adjustment is convenient, uses nimble broach shell push-out formula chain tool magazine.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a kind of knife pouch push-out type chain type tool magazine, it is made up of base, annular guide rail, chain mechanism, chain drive unit and knife pouch push-out device, the base couples to lathe, the annular guide rail is set up on base, the chain mechanism comprising several knife pouches locates on annular guide rail outside, can do the rotary motion along annular guide rail under the influence of chain drive unit; the knife pouch ejecting device is erected above the chain mechanism and is arranged on the base through the ejecting mounting plate, and the knife pouch can be ejected out of the chain mechanism to perform automatic knife changing or manual knife installing.

According to the tool sleeve push-out type chain type tool magazine, the push-out mounting plate is provided with a plurality of mounting positions, and the tool sleeve push-out device can be mounted at any mounting position according to a tool changing position.

According to the tool sleeve push-out type chain type tool magazine, the tool sleeve push-out device comprises a push-out tool base, an automatic tool changing push-out tool part and a manual tool installing push-out tool part, the push-out tool base is installed on a push-out installation plate, and the automatic tool changing push-out tool part and the manual tool installing push-out tool part are both arranged on the push-out tool base; the automatic tool changing push-type broach part comprises a first push-out cylinder, a first guide rail, a first clamping seat, a first clamping jaw and a first clamping jaw cylinder, wherein the first push-out cylinder and the first guide rail are respectively arranged on a push-type broach base; the manual knife-installing push-type broach part comprises a second push-out cylinder, a second guide rail, a second clamping seat, a second clamping jaw and a second clamping jaw cylinder, the second push-out cylinder and the second guide rail are respectively installed on the push-type broach base, the second push-out cylinder and the first push-out cylinder are arranged in a reverse direction, the second clamping seat is installed at the output end of the second push-out cylinder, the second push-out cylinder can push out outwards and return inwards along the second guide rail under the action of the second push-out cylinder, the second clamping jaw is arranged in the second clamping seat, and the second clamping jaw can clamp and loosen a knife sleeve under the action of the second clamping jaw cylinder.

Above-mentioned knife pouch pushes away formula chain tool magazine, automatic tool changing pushes away sword portion and manual dress sword and pushes away sword portion and all is provided with jack catch state detection device, and automatic tool changing pushes away sword portion still is provided with the knife pouch and pushes away detection device and the safety protection device that prevents falling electricity that targets in place.

According to the tool sleeve push-out type chain type tool magazine, the chain mechanism is composed of a plurality of single chain links which are connected in series, each single chain link comprises an integrated chain link, a left bushing, a right bushing, a roller shaft, a rear roller, a pull claw, a pull block and a tool sleeve, and the left bushing and the right bushing are respectively positioned on the left side and the right side of the integrated chain link; the rear roller is arranged at the rear end of the integrated chain link through a roller shaft; the cutter sleeve is fixedly connected with the pull block, the pull claw is arranged at the upper end of the integrated chain link, and the cutter sleeve can be fastened at the front end of the integrated chain link when the pull claw pulls the pull block; the left bush of the single chain link is connected with the right bush of the adjacent single chain link through a chain shaft, and the upper end and the lower end of the chain shaft are respectively provided with a side roller.

According to the tool sleeve push-out type chain type tool magazine, the rear idler wheel and the side idler wheels are matched with the annular guide rail, two side guide surfaces and one side guide groove are arranged on the outer side of the annular guide rail, the side guide groove is located between the two side guide surfaces, the rear idler wheel rolls in the side guide groove, and the side idler wheels roll along the upper side guide surface and the lower side guide surface respectively.

Above-mentioned cutter sleeve pushes away formula chain tool magazine, the cutter sleeve outside is provided with cutter sleeve centre gripping groove, and the inside cutter locking device that is provided with of cutter sleeve comprises ball cover, steel ball, spring and locking shaft, and the ball cover is embedded in the cutter sleeve, and the steel ball distributes in the ball way of ball cover lower part, and the locking shaft sets up inside the ball cover, can release the steel ball and lock the handle of a knife under the spring action.

According to the tool sleeve push-out type chain type tool magazine, the chain driving unit consists of a driving motor, a motor mounting seat, a gear, a chain wheel shaft, a bearing and a chain wheel, the chain wheel shaft is fixed on the base, and the driving motor is mounted above the chain wheel shaft through the motor mounting seat; the gear is meshed with the output end of the driving motor on one hand and fixedly connected with the chain wheel on the other hand; the chain wheel is sleeved on the chain wheel shaft through a bearing and can rotate around the chain wheel shaft under the action of the driving motor; the chain wheel is meshed with the chain mechanism and can provide rotary power for the chain mechanism.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses chain mechanism adopts single sprocket drive and ring rail's full stroke direction form, has effectively reduced the vibration and the noise of tool changing in-process tool magazine, can realize the high-speed operation and the high accuracy location of tool magazine. The linear velocity of the chain is greatly improved, the cutter searching time is reduced, the non-processing time of a machine tool in the cutter changing process can be effectively shortened, and the production efficiency is improved. The automatic tool changing adopts a tool sleeve push-out type structure, does not have overturning action, is reliable in action, high in tool changing speed and high in efficiency; the push mechanism is additionally provided with a manual tool changing push-out structure, so that the space limitation of the pitch of the chain links can be overcome, the uniqueness of the manual tool mounting position is ensured, and the automatic tool mounting can be conveniently realized; the mounting position and the direction of the push broach mechanism can be freely adjusted according to the tool changing position, the requirement on the structural space of the machine tool is reduced, and the universality is high. The chain mechanism adopts an integrated chain link structure design, greatly reduces the number of parts and the assembly difficulty, has a compact structure, is easy to ensure the assembly precision, is favorable for the high-speed silent operation of the chain, and has the advantages of small vibration, low noise, long service life and the like. The cutter sleeve and the chain links are in modular design, when the different types of cutter handles are replaced, the whole chain does not need to be replaced, the different types of cutter handles can be connected only by replacing the cutter sleeve, and the production cost is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the chain mechanism of the present invention.

Fig. 3 is a schematic structural view of a single link of the chain mechanism of the present invention.

Fig. 4 is a schematic diagram of the internal structure of the single chain link of the chain mechanism of the present invention.

Fig. 5 is a schematic structural view of the chain driving unit of the present invention.

Fig. 6 is a schematic view of the internal structure of the knife sheath ejecting device of the present invention.

Fig. 7 is an external structure schematic diagram of the knife sheath ejecting device of the present invention.

Detailed Description

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

As shown in fig. 1, the present invention relates to a tool sheath push-out type chain magazine, which comprises a base 1, a ring-shaped guide rail 2, a chain mechanism 3, a chain driving unit 4, and a tool sheath push-out device 5. The base 1 is connected with a machine tool, and the annular guide rail 2 is arranged on the base 1. The chain mechanism 3 is arranged on the annular guide rail 2 and can rotate along the annular guide rail 2 under the action of the chain driving unit 4. The knife pouch ejecting device 5 is erected above the chain mechanism 3, is arranged on the base 1 through the ejecting mounting plate 6, mounting hole sites are uniformly distributed on the ejecting mounting plate 6, and the mounting position and the mounting direction of the knife pouch ejecting device 5 can be freely adjusted according to different knife changing positions.

As shown in fig. 1 to 4, the chain mechanism 3 is formed by connecting single links in series, and each single link includes an integrated link 31, a left bushing 32, a right bushing 33, a roller shaft 34, a rear roller 35, a pull claw 36, a pull block 37, and a cutter housing 38. Left and right bushings 32, 33 are respectively located on the left and right sides of the integrated link 31, and the left bushing 32 can be connected in series with the right bushing 33 of the adjacent single link through a chain shaft 39, wherein the left bushing 32 is interposed between the two right bushings 33 of the adjacent single link. The cutter sleeve 38 is fixedly connected with the pull block 37, the pull claw 36 is arranged at the upper end of the integrated chain link 31, and when the pull claw 36 pulls the pull block 37 tightly, the cutter sleeve 38 can be fastened at the front end of the integrated chain link 31. The rear roller 35 is arranged at the rear end of the integrated chain link 31 through a roller shaft 34 and is matched with the annular guide rail 2; the annular guide rail 2 comprises a side guide surface 21, a side guide surface 22 and a side guide groove 23, the side guide groove 23 is positioned between the side guide surface 21 and the side guide surface 22, and the rear roller 35 rolls in the side guide groove 23 to play an axial limiting role on the chain shaft 39; meanwhile, in order to limit the chain shaft 39 in the radial direction, the upper and lower ends of the chain shaft 39 are respectively provided with side rollers 30 which roll along the side guide surfaces 21 and 22.

The cutter locking device is arranged in the cutter sleeve 38 and comprises a ball sleeve 381, a steel ball 382, a spring 383 and a locking shaft 384, and the ball sleeve 381 is embedded in the cutter sleeve 38 and connected through screws. The steel ball 382 is distributed in a ball channel at the lower part of the ball sleeve 381, the locking shaft 384 is arranged in the ball sleeve 381, and the steel ball can be pushed out of the ball channel and locks the tool holder under the action of the spring 383. In order to clamp and push out the knife pouch, a knife pouch clamping groove 385 is also arranged on the outer side of the knife pouch 38.

As shown in fig. 5, the chain drive unit 4 is composed of a drive motor 41, a motor mount 42, a gear 43, a sprocket shaft 44, a bearing 45, and a sprocket 46. The sprocket shaft 44 is fixed to the base 1, and the driving motor 41 is mounted above the sprocket shaft 44 via the motor mounting base 42. The gear 43 is meshed with the output end of the driving motor 41 on one hand and fixedly connected with the chain wheel 46 on the other hand; the chain wheel 46 is sleeved on the chain wheel shaft 44 through a bearing and can rotate around the chain wheel shaft 44 under the action of the driving motor 41; the sprocket 46 engages with the chain mechanism 3 to provide the chain mechanism 3 with rotational power.

As shown in fig. 1, 6 and 7, the tool sheath pushing device 5 includes a pusher base 51, an automatic tool changing pusher 52, and a manual tool loading pusher 53. The pusher base 51 is mounted on the pusher mounting plate 6, and the automatic tool changing pusher portion 52 and the manual tool mounting pusher portion 53 are provided at both ends of the pusher base 51. The automatic tool changing and pushing part 52 comprises a first pushing cylinder 521, a first guide rail 522, a first clamping seat 523, a first jaw 524 and a first jaw cylinder 525, wherein the first pushing cylinder 521 and the first guide rail 522 are respectively arranged on the pushing tool base 51; the first clamping seat 523 is installed at the output end of the first pushing cylinder 521, and can perform outward pushing and inward retracting actions along the first guide rail 522 under the action of the first pushing cylinder 521; the first clamping jaw 524 is arranged in the first clamping seat 523 and can clamp and release the cutter sleeve under the action of the first clamping jaw air cylinder 525; the upper part of the piston rod of the first claw cylinder 525 is provided with an identification block 528 and a claw in-place sensor 529 which are used for detecting the clamping and loosening state of the first claw 524 on the knife sheath so as to judge whether the next action can be carried out or not, when a clamping signal is received, the first push-out cylinder 521 can normally push out the knife sheath, and if the clamping signal cannot be received, the knife sheath push-out action cannot be carried out; a tool sleeve sensor 526 is further arranged on the push broach base 51 corresponding to the lower end of the first clamping jaw 524 and is used for detecting the situation that the tool sleeve is pushed out in place so as to judge whether the next tool changing action can be executed; in order to prevent the cutter sleeve from falling off due to accidental power failure, a safety stop 527 is further disposed on the push broach base 51. The manual tool-mounting push-cutting part 53 comprises a second push-out cylinder 531, a second guide rail 532, a second clamping seat 533, a second claw 534 and a second claw cylinder 535, wherein the second push-out cylinder 531 is arranged on the push-cutting base 51 through a cylinder seat 536 and is arranged in the opposite direction of the first push-out cylinder 521; the second guide rail 532 is fixed on the push broach base 51 and is parallel to the first guide rail 522; the second clamping seat 533 is mounted at the output end of the second push-out cylinder 531 through a cylinder push block 537, and can perform outward push-out and inward retraction motions along the second guide rail 532 under the action of the second push-out cylinder 531; the second clamping jaw 534 is arranged in the second clamping seat 533, and can clamp and release the cutter sleeve under the action of the second clamping jaw cylinder 535; the upper part of the piston rod of the second jaw cylinder 535 is also provided with an identification block 538 and a jaw in-place sensor 539 for detecting the clamping and loosening state of the second jaw 534 to the tool holder to judge whether the tool holder push-out action can be executed.

The utility model discloses the during operation at first installs knife pouch ejecting device 5 in the corresponding position of base 1 according to the design of lathe tool changing position. When automatic tool changing is carried out, the chain driving unit 4 drives the chain mechanism 3 to rotate along the annular guide rail 2 to search for a tool, when the corresponding tool handle is detected in place, the first claw cylinder 525 in the tool sleeve pushing device 3 acts to enable the first claw 524 to clamp the tool sleeve 38, the claw in-place sensor 529 detects that the first claw is clamped in place, the first pushing cylinder 521 pushes the first clamping seat 523 to move outwards, the tool sleeve 38 is separated from the single link and pushed out to the tool changing position, and the tool sleeve sensor 526 detects that the tool sleeve is pushed out in place, so that tool changing can be carried out. After the exchange is completed, the first push-out cylinder 521 retracts, the cutter sleeve 38 resets to a single link, the first clamping jaw cylinder 525 acts to enable the first clamping jaw 524 to loosen the cutter sleeve 38, and the clamping jaw in-place sensor 529 detects that the first clamping jaw is loosened in place, so that one time of cutter searching, cutter preparing and cutter changing actions is completed. Similarly, when the knife is manually mounted, when the chain driving unit 4 drives the chain mechanism 3 to rotate along the annular guide rail 2 to the position to be mounted with the knife, the second jaw cylinder 535 in the knife sleeve pushing device 3 acts to enable the second jaw 534 to clamp the knife sleeve 38, the jaw in-place sensor 539 detects that the clamping is in place, the second pushing cylinder 531 pushes the second clamping base 533 to move outwards, the knife sleeve 38 is separated from the single link and pushed out to the position to be mounted with the knife manually, and then the knife can be mounted with the knife manually. After the tool is mounted, the second push-out cylinder 531 retracts, the tool sleeve 38 resets to a single link, the second clamping jaw cylinder 535 acts to enable the second clamping jaw 534 to loosen the tool sleeve 38, and the clamping jaw in-place sensor 529 detects that the tool sleeve is loosened in place, so that one manual tool mounting action is completed.

Although the present invention has been described in detail, the present invention is not limited thereto, and those skilled in the art can make various modifications according to the principle of the present invention. Therefore, modifications made in accordance with the principles of the present invention should be understood to fall within the scope of the present invention.

Claims (10)

1. A knife pouch push-out type chain type tool magazine is characterized by comprising a base, an annular guide rail, a chain mechanism, a chain driving unit and a knife pouch push-out device, wherein the base is connected with a machine tool; the knife pouch ejecting device is erected above the chain mechanism and is arranged on the base through the ejecting mounting plate, and the knife pouch can be ejected out of the chain mechanism to perform automatic knife changing or manual knife installing.

2. The magazine as claimed in claim 1, wherein the push-out mounting plate is provided with a plurality of mounting positions, and the magazine push-out device can be mounted at any mounting position according to a tool changing position.

3. The tool sheath pushing type chain magazine tool according to claim 2, wherein the tool sheath pushing device is composed of a pushing base, an automatic tool changing pushing portion and a manual tool installing pushing portion, the pushing base is mounted on the pushing mounting plate, and the automatic tool changing pushing portion and the manual tool installing pushing portion are both arranged on the pushing base; the automatic tool changing push-type broach part comprises a first push-out cylinder, a first guide rail, a first clamping seat, a first clamping jaw and a first clamping jaw cylinder, wherein the first push-out cylinder and the first guide rail are respectively arranged on a push-type broach base; the manual knife-installing push-type broach part comprises a second push-out cylinder, a second guide rail, a second clamping seat, a second clamping jaw and a second clamping jaw cylinder, the second push-out cylinder and the second guide rail are respectively installed on the push-type broach base, the second push-out cylinder and the first push-out cylinder are arranged in a reverse direction, the second clamping seat is installed at the output end of the second push-out cylinder, the second push-out cylinder can push out outwards and return inwards along the second guide rail under the action of the second push-out cylinder, the second clamping jaw is arranged in the second clamping seat, and the second clamping jaw can clamp and loosen a knife sleeve under the action of the second clamping jaw cylinder.

4. The tool sleeve pushing type chain magazine tool as claimed in claim 3, wherein the automatic tool changing and pushing portion and the manual tool installing and pushing portion are provided with a claw state detection device, and the automatic tool changing and pushing portion is further provided with a tool sleeve pushing in-place detection device and an anti-power-off safety protection device.

5. The tool sheath push-out type chain tool magazine as claimed in any one of claims 1 to 4, wherein the chain mechanism is composed of a plurality of single chain links connected in series, each single chain link comprises an integrated chain link, a left bushing, a right bushing, a roller shaft, a rear roller, a pull claw, a pull block and a tool sheath, and the left bushing and the right bushing are respectively positioned at the left side and the right side of the integrated chain link; the rear roller is arranged at the rear end of the integrated chain link through a roller shaft; the cutter sleeve is fixedly connected with the pull block, the pull claw is arranged at the upper end of the integrated chain link, and the cutter sleeve can be fastened at the front end of the integrated chain link when the pull claw pulls the pull block; the left bush of the single chain link is connected with the right bush of the adjacent single chain link through a chain shaft, and the upper end and the lower end of the chain shaft are respectively provided with a side roller.

6. The magazine as claimed in claim 5, wherein the rear roller and the side rollers are engaged with a circular guide rail, the circular guide rail is provided with two side guide surfaces and a side guide groove at an outer side thereof, the side guide groove is located between the two side guide surfaces, the rear roller rolls in the side guide groove, and the side rollers roll along the upper and lower side guide surfaces, respectively.

7. The chain type tool magazine of claim 6, wherein a tool sleeve holding groove is formed in the outer side of the tool sleeve, a tool locking device is arranged in the tool sleeve and comprises a ball sleeve, a steel ball, a spring and a locking shaft, the ball sleeve is embedded in the tool sleeve, the steel ball is distributed in a ball channel in the lower portion of the ball sleeve, and the locking shaft is arranged in the ball sleeve and can push out the steel ball and lock the tool shank under the action of the spring.

8. The tool sheath push-out type chain magazine as claimed in any one of claims 1 to 4, wherein the chain driving unit is composed of a driving motor, a motor mounting seat, a gear, a chain wheel shaft, a bearing and a chain wheel, the chain wheel shaft is fixed on the base, and the driving motor is mounted above the chain wheel shaft through the motor mounting seat; the gear is meshed with the output end of the driving motor on one hand and fixedly connected with the chain wheel on the other hand; the chain wheel is sleeved on the chain wheel shaft through a bearing and can rotate around the chain wheel shaft under the action of the driving motor; the chain wheel is meshed with the chain mechanism and can provide rotary power for the chain mechanism.

9. The tool sheath push-out type chain tool magazine as claimed in claim 5, wherein the chain driving unit is composed of a driving motor, a motor mounting seat, a gear, a chain wheel shaft, a bearing and a chain wheel, the chain wheel shaft is fixed on the base, and the driving motor is mounted above the chain wheel shaft through the motor mounting seat; the gear is meshed with the output end of the driving motor on one hand and fixedly connected with the chain wheel on the other hand; the chain wheel is sleeved on the chain wheel shaft through a bearing and can rotate around the chain wheel shaft under the action of the driving motor; the chain wheel is meshed with the chain mechanism and can provide rotary power for the chain mechanism.

10. The tool sheath push-out type chain tool magazine as claimed in claim 6, wherein the chain driving unit is composed of a driving motor, a motor mounting seat, a gear, a chain wheel shaft, a bearing and a chain wheel, the chain wheel shaft is fixed on the base, and the driving motor is mounted above the chain wheel shaft through the motor mounting seat; the gear is meshed with the output end of the driving motor on one hand and fixedly connected with the chain wheel on the other hand; the chain wheel is sleeved on the chain wheel shaft through a bearing and can rotate around the chain wheel shaft under the action of the driving motor; the chain wheel is meshed with the chain mechanism and can provide rotary power for the chain mechanism.

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