CN212682316U

CN212682316U - Automatic cutter replacing device and multi-station spring machine

Info

Publication number: CN212682316U
Application number: CN202020515237.4U
Authority: CN
Inventors: 王德成; 李伟; 程鹏
Original assignee: CHINA PRODUCTIVITY CENTER FOR MACHINERY
Current assignee: China Machinery Productivity Promotion Center Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2021-03-12
Anticipated expiration: 2030-04-10

Abstract

The utility model provides an automatic device, the multistation spring machine of changing of cutter, the automatic device of changing of cutter includes: the tool unclamping device is used for clamping and unclamping the tool assembly; the cutter head is provided with a cutter assembly for replacement; the cutter taking and feeding mounting device is arranged between the cutter unclamping device and the cutter head and is used for clamping, transporting and mounting the cutter assembly between the cutter unclamping device and the cutter head. The utility model discloses an automatic tool changing of multistation spring machine, very big reduction loaded down with trivial details nature and the inefficiency that artifical tool changing brought, shortened the tool changing time, improved production efficiency, the automatic device simple structure novelty, the design benefit of changing of cutter, low in manufacturing cost, convenient operation is swift.

Description

Automatic cutter replacing device and multi-station spring machine

Technical Field

The utility model relates to a wire rod field of taking shape particularly, relates to an automatic device, multistation spring machine of changing of cutter.

Background

The multi-station spring forming machine is a forming equipment suitable for producing various springs in small batches, and can form and produce various springs in different shapes, such as tension, compression, torsion and the like, the forming panel of the multi-station spring forming machine is generally provided with eight stations around a mandrel, and eight forming cutters of the spring forming machine can be arranged at the same time.

At present, a cutter is manually clamped on a cutter mounting seat on a sliding seat, and is positioned and clamped by using a bolt, and the bolt adjusts the vertical, horizontal and pitching positions of the cutter, so that the spring machine cutter reaches a position suitable for forming. When the multi-station spring machine is used for replacing a forming object, the cutter on the cutter mounting seat needs to be manually detached, and then a proper cutter is manually selected and mounted on the mounting seat. Because this kind of manual bolt location presss from both sides tight mode at spring machine cutter type selection, cutter position overall arrangement, cutter dismouting change, processing procedure debugging, sample test etc. and the work needs experienced manual work to spend a large amount of time, not only the automation level is lower, is difficult to get rid of artificial dependence, leads to faced the spring processing demand of many varieties moreover, and the spring forming machine does not possess the ability of quick debugging adaptation. The actual processing time of the spring machine is relatively short, the advantages of multiple varieties and small batch of the spring machine are difficult to exert, and the production efficiency of the multiple varieties of springs is greatly influenced.

Under the condition of the prior art, an automatic tool changing system of a machining center aims at metal cutting machining, and is mainly characterized in that only one machining main shaft is provided, and the main shaft is arranged at a tool changing point when a tool is changed and is exchanged with a spare tool in a tool magazine in a one-to-one mode. The characteristics of metal cutting are different from those of spring forming, and a multi-station spring forming machine cannot directly use an automatic tool changing system in a machining center.

In view of this, the present invention is especially provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides an among the prior art, multistation spring machine need rely on artifical change cutter, and it is slow to change cutter speed, the production advantage of the many varieties small batch of unable performance multistation spring machine.

In order to solve the problem, the utility model provides an automatic device of changing of cutter, the automatic device of changing of cutter can accomplish the cutter on the panel that takes shape voluntarily and dismantle, transport, change and install to the use angle of cutter can be fixed, very big reduction the loaded down with trivial details nature and the inefficiency that artifical tool changing brought.

The utility model discloses an automatic device of changing of cutter, the automatic device of changing of cutter includes: the tool unclamping device is used for clamping and unclamping the tool assembly; the cutter head is provided with a cutter assembly for replacement; the cutter taking and feeding mounting device is arranged between the cutter unclamping device and the cutter head and is used for clamping, transporting and mounting the cutter assembly between the cutter unclamping device and the cutter head.

The cutter unclamping device is matched with the cutter taking and feeding mounting device, so that the cutter assembly on the forming panel can be taken down and mounted after being replaced, and the cutter head is used for placing the taken-down cutter assembly and the cutter assembly to be replaced.

Further, the tool unclamping device comprises: the cutter barrel is of a hollow structure and is used for arranging a cutter assembly and a loosening and clamping assembly; the cutter barrel clamp is used for fixedly arranging the cutter barrel on a connecting plate, and the connecting plate is used for fixing the cutter releasing device; the loose clamp assembly is arranged inside the cutter barrel and used for realizing loosening and clamping of the cutter assembly; the tail end of the cutter component is inserted into the cutter barrel and is fixedly connected with the head end of the loose clamp component; the first driving device is provided with a transmission rod, and the transmission rod is inserted into the tail end of the knife cylinder and is fixedly connected with the tail end of the loosening and clamping assembly; the first driving device is arranged on a first connecting piece, and the first connecting piece is fixedly arranged on the connecting plate.

Specifically, the head end is the one end that linear motion slide is nearer apart from the dabber on the multistation spring machine, the end is the one end that linear motion slide is far away apart from the dabber, and the setting of a sword section of thick bamboo is used for fixed cutter subassembly and holds the pine and press from both sides the subassembly, also is favorable to realizing simultaneously loosening and pressing from both sides the subassembly.

Further, the cutter assembly comprises a cutter, a cutter handle and a blind rivet, the tail end of the cutter is inserted into the cutter handle and fixedly connected with the cutter, and the head end of the blind rivet is fixedly connected with the tail end of the cutter handle.

The setting of cutter unit spare makes to press from both sides and gets more convenient, also can set up the cutter on the handle of a knife according to the angle of demand in advance simultaneously, the terminal preferred of cutter is cylindrical, the adjustment of its angle of being convenient for, then can accomplish through cutter unit spare's location when changing the use angular adjustment of cutter can greatly shorten the tool changing time, the blind rivet is convenient for fix cutter unit spare in a sword section of thick bamboo or broach shell.

Furthermore, a positioning device is arranged between the knife handle and the knife cylinder and comprises a positioning groove and a positioning key, and the positioning key is inserted into the positioning groove for positioning.

The positioning groove is arranged on the knife handle, the positioning key is arranged on the knife barrel, the positioning key and the positioning groove are matched to realize rapid positioning of the knife assembly and fix the using angle of the knife, time for manually adjusting the angle of the knife is saved, and the positioning groove and the positioning key can be interchanged.

Furthermore, the loose clamp subassembly includes blind rivet and draw claw, the blind rivet is fixed to be set up the end of cutter unit, draw claw with transfer line fixed connection, thereby the transfer line can move to the head end of a knife section of thick bamboo and control the loose clamp subassembly and loosen, thereby the transfer line can move to the end of a knife section of thick bamboo and control the loose clamp subassembly presss from both sides tightly.

The rivet pulling claw is simple in structure, can be realized by only arranging one driving device, and is simple in structure and convenient to operate.

Further, a first conical inner hole is formed in the head end of the cutter cylinder, an outer conical surface is arranged at the tail end of the cutter handle, the first conical inner hole is used for attaching and fixing the outer conical surface, a cutter loosening and clamping cavity is arranged at the tail end of the first conical inner hole, the cutter loosening and clamping cavity is used for loosening of the loosening and clamping device, a through hole is formed in the tail end of the cutter loosening and clamping cavity, the diameter of the through hole is smaller than that of the cutter loosening and clamping cavity, and the through hole is used for clamping the loosening and clamping device.

The circumferential surface of the first conical inner hole is an inner conical surface of 7:24, the direction of the main acting force applied to the cutter when the spring is actually formed is the direction from the head end of the cutter to the tail end of the cutter, and after the cutter handle is tensioned, the axial positioning and attaching of the outer conical surface and the first conical inner hole are closer under the action of the deformation resistance of the wire, so that the condition that the cutter is automatically loosened in the using process is ensured.

Further, the tool pick-and-place mounting device includes: the second driving device is fixedly arranged on the supporting frame, a first rotary table is arranged at the output end of the second driving device, and the first rotary table rotates in the horizontal plane; the third driving device is fixedly arranged on the first rotary table, the output end of the third driving device is provided with a second rotary table, and the rotation axis of the second rotary table is vertical to the rotation axis of the first rotary table; the fourth driving device is arranged on the second rotary table, and the output end of the fourth driving device moves along the length direction of the second rotary table; the fifth driving device is arranged at the output end of the fourth driving device, and the movement direction of the output end of the fifth driving device is vertical to the movement direction of the output end of the fourth driving device; a sixth drive means provided on an output end of the fifth drive means, the sixth drive means being for control of gripping and releasing of the tool assembly; a gripper disposed on an output end of the sixth drive for gripping and releasing the tool assembly.

Second drive arrangement and third drive arrangement have realized two rotary motion, make the cutter is got and is sent installation device can be quick remove between shaping panel and the blade disc, fourth drive arrangement and fifth drive arrangement have realized two linear motion, make the cutter is got and is sent installation device can realize pulling out and the installation of cutter unit fast to the scope of panel or blade disc that takes shape is withdrawed from safely, has avoided interfering with other parts, the motion that the closing and unclamp is accomplished to sixth drive arrangement control clamping jaw has realized cutter unit's clamp is got and is unclamped.

Further, the range of the rotation stroke of the first rotary table is 0-90 degrees.

In general, the cutter head is perpendicular to the forming panel, and the rotation stroke range of the first rotary table is set to be 0-90 degrees, so that the operation that the cutter taking and feeding installation device arrives at the forming panel from the cutter head or arrives at the cutter head from the forming panel can be met.

Further, the range of the rotation stroke of the second turntable is 0-360 degrees.

A plurality of linear motion sliders are often provided on a multi-station spring machine for mounting a plurality of cutter assemblies, so that the cutter pick-and-place mounting device needs to reach all positions of the forming panel to complete the replacement of all cutters, and a second turntable is required to be capable of rotating 360 degrees.

Further, the second driving device is a rotary cylinder, the third driving device is a servo motor, the fourth driving device is a linear rodless cylinder, the fifth driving device is a linear three-rod cylinder, and the sixth driving device is a clamping jaw cylinder.

The second driving device is set to be a rotary cylinder to realize the rotary stroke of the first rotary table, of course, the second driving device can also be set to be a servo motor, the third driving device needs to drive the second rotary table to realize 360-degree rotation, so the third driving device is set to be the servo motor, the fourth driving device needs to bear a fifth driving device, a sixth driving device, the clamping jaw and a connecting piece between the clamping jaws, and the weight of a cutter assembly needs to be borne when a cutter is replaced, so the linear rodless cylinder can better bear the load on one hand, a large amount of space can be saved on the other hand to realize the positioning of the clamping jaw at each position on the forming panel, the fifth driving device is used for controlling the clamping jaw to be positioned to a clamping or placing position, higher precision is needed, the linear three-rod cylinder can accurately control the position of the clamping jaw, and the clamping jaw is controlled to rapidly withdraw from the range of the forming panel or, the sixth driving device is used for realizing the clamping and loosening functions, so that a clamping jaw air cylinder is selected.

Further, the blade disc includes the blade disc base member and selects the sword platform, select the rotatable setting of sword platform to be in on the blade disc base member, be provided with on the blade disc base member and get the edge of a knife, the cutter is got and is sent installation device and accomplish the clamp of cutter unit spare or place through getting the edge of a knife.

The cutter selecting disc is arranged to enable a cutter to be replaced to rotate to a cutter taking opening, the cutter taking and conveying installation device finishes cutter taking through the cutter taking opening, the operation route of the cutter taking and conveying installation device is simplified, and therefore the structure of the cutter taking and conveying installation device is simplified.

Further, a knife sleeve is arranged on the knife selecting table, the knife sleeve can turn over towards the outer circumference of the cutter head, the turned knife sleeve extends out of the knife taking opening, and the knife sleeve is used for arranging a cutter assembly.

This setting has avoided placing cutter subassembly or when taking off the cutter subassembly toward the blade disc the cutter is got and is sent installation device and blade disc's interference.

Furthermore, a positioning part is arranged on the cutter sleeve and is matched with the cutter handle for positioning, so that the cutter also keeps a correct angle on the cutter head, and the cutter assembly is convenient to take and mount.

Specifically, when setting up to the constant head tank on the handle of a knife, location portion sets up to the navigation key, works as when setting up to the navigation key on the handle of a knife, location portion sets up to the constant head tank, and this setting makes cutter unit is convenient for press from both sides and gets and install, and can fix a position fast to the cutter angle of needs.

The utility model also discloses a multistation spring machine, multistation spring machine include as above the automatic device of changing of cutter.

Compared with the prior art, the multi-station spring machine and the automatic cutter replacing device have the same advantages, and the description is omitted.

Furthermore, a forming panel is arranged on the multi-station spring machine, a linear motion sliding seat and a mandrel are arranged on the forming panel, and the cutter loosening device is fixedly arranged on the linear motion sliding seat.

The linear motion sliding seat is used for controlling the position of a cutter on the forming panel, so that the shape of the spring is controlled, the cutter loosening device is fixedly arranged on the linear motion sliding seat, the existing structure can be reasonably utilized, and the space is saved.

Further, the central axis of the mandrel and the rotation axis of the second rotary table are in the same horizontal plane.

This arrangement allows the fourth drive means to deliver the jaws to various positions of the formed panel with a minimum stroke.

Compared with the prior art, automatic device, the multistation spring machine of changing of cutter have following advantage:

the utility model discloses a design of the automatic device of changing of cutter can realize that the cutter on shaping panel and the blade disc is dismantled, transported, is changed and the installation, can also fix the use angle of cutter at this in-process, very big reduction loaded down with trivial details nature and the inefficiency that the artifical tool changing brought, shortened the tool changing time of current multistation spring machine, improved production efficiency, the automatic device of changing of cutter simple structure is novel, design benefit, low in manufacturing cost, convenient operation is swift.

Drawings

FIG. 1 is a schematic structural view of an automatic cutter replacing device according to an embodiment of the present invention;

FIG. 2 is a partial enlarged view of portion A of FIG. 1;

fig. 3 is a schematic structural view of a tool unclamping device according to an embodiment of the present invention;

fig. 4 is a front view of a tool unclamping device according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a front view of a knife cylinder according to an embodiment of the present invention;

FIG. 7 is a cross-sectional view taken along line C-C of FIG. 6;

fig. 8 is a schematic structural view of a tool pick-and-place mounting device according to an embodiment of the present invention;

fig. 9 is a perspective view of the cutter taking and feeding mounting device according to the embodiment of the present invention;

fig. 10 is a schematic structural view of a cutter head according to an embodiment of the present invention;

fig. 11 is a front view of a knife pouch according to an embodiment of the present invention;

fig. 12 is a cross-sectional view taken along line D-D in fig. 11.

Description of reference numerals:

1. a multi-station spring machine; 2. a base; 3. forming a panel; 4. a linearly moving slide; 401. a slider; 5. the tool loosens the clamping device; 501. a cutter; 502. a knife handle; 5021. positioning a groove; 5022. an outer conical surface; 503. a knife cylinder; 5031. a positioning key; 5032. a step; 5033. positioning key mounting holes; 5034. a first tapered inner bore; 5035. a cutter unclamping cavity; 5036. a through hole; 504. a knife cylinder clamp; 505. a first driving device; 5051. a transmission rod; 506. a first connecting member; 507. a connecting plate; 508. pulling nails; 5081. a clamping head; 509. pulling a claw; 5091. a tightening part; 510. a pull rod; 6. a tool pick-and-place mounting device; 601. a second driving device; 6011. a first turntable; 6011a, a horizontal platform; 6011b, a vertical table; 6011c, a first support plate; 602. a third driving device; 6021. a planetary reducer; 6022. a second turntable; 603. a fourth drive device; 604. a fifth driving device; 605. a sixth driving device; 6051. a clamping jaw; 7. a cutter head; 701. a cutter head base body; 702. selecting a cutter table; 703. a knife sheath; 7031. a positioning part; 7032. a second tapered inner bore; 7033. an accommodating portion; 704. taking a knife edge; 705. a cutter head fixing frame; 8. a support frame; 9. a mandrel; 10. and (3) wire rods.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting of the invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The following describes an automatic cutter replacing device according to an embodiment of the present invention with reference to the drawings.

Example 1

The embodiment provides an automatic device that changes of cutter, as shown in fig. 1, fig. 2, the automatic device that changes of cutter is used for multistation spring machine 1, multistation spring machine 1 is including setting up the shaping panel 3 on base 2, be provided with linear motion slide 4 and dabber 9 on the shaping panel 3, be provided with sliding block 401 on the linear motion slide 4, sliding block 401 is followed linear motion slide 4 slides, and wire rod 10 that wears out from dabber 9 passes through cutter 501 machine-shaping, the automatic device that changes of cutter includes: the tool unclamping device 5 is arranged on the linear motion sliding seat 4 and used for clamping and unclamping a tool assembly, and the tool assembly comprises a tool 501, a tool holder 502 and a rivet 508; the cutter head 7 is provided with a cutter assembly for replacement; the cutter taking and conveying installation device 6 is used for clamping, transporting and installing a cutter assembly between the multi-station spring machine 1 and the cutter head 7; specifically, the tail end of the cutter 501 is inserted into the cutter handle 502 and fixedly connected, and the head end of the blind rivet 508 is fixedly connected to the tail end of the cutter handle 502, so as to form a cutter assembly.

As an embodiment of the present invention, as shown in fig. 3, 4, and 5, the cutter unclamping device 5 is fixedly disposed on the sliding block 401 through a connecting plate 507, the cutter unclamping device 5 includes a cutter 501, a handle 502, a knife cylinder 503, a knife cylinder clamp 504, and a first driving device 505, wherein the cutter 501 and the handle 502 are fixedly connected to form a cutter assembly, the end of the cutter 501 is fixedly disposed on (in) the handle 502, the end of the handle 502 is detachably disposed in the knife cylinder 503 through the unclamping assembly, the knife cylinder 503 is fixedly disposed on the connecting plate 507 through the knife cylinder clamp 504, the unclamping device is connected to the first driving device 505, the first driving device 505 is disposed on the first connecting member 506, the first connecting member 506 is fixedly connected to the connecting plate 507, the first driving device 505 is provided with a transmission rod 5051, the transmission rod 5051 is fixedly connected with the loosening and clamping assembly through a pull rod 510, specifically, the tail end of the cutter 501 is a cylinder, a collet chuck is arranged in the cutter handle 502, the cutter 501 is fixed in the collet chuck of the cutter handle 502 through a locking nut, preferably, the first driving device 505 is an air cylinder, in this embodiment, the head end is one end of the linear motion sliding base 4, which is close to the mandrel 9, and the tail end is one end of the linear motion sliding base 4, which is far away from the mandrel 9.

Specifically, as shown in fig. 5 and 8, a positioning key 5031 is provided at the head end of the knife cylinder 503, a positioning groove 5021 is provided at the tail end of the knife handle 502, specifically, the positioning key 5031 is provided with an arc surface, when the knife handle 502 is installed, the knife handle 502 is inserted into the knife cylinder 503, the positioning groove 5021 is finely adjusted and positioned along the arc surface of the positioning key 5031, so that the automatic alignment of the knife handle 502 in the knife cylinder 503 is realized, the angle of the knife 501 is further controlled, a step 5032 is further provided at the head end of the knife cylinder 503, the step 5032 extends outwards along the circumferential direction of the knife cylinder 503 and is used for positioning and limiting when the knife cylinder clamp 504 is installed, the knife assembly is fixed in the knife cylinder 503 through the matching of the positioning key 5031 and the positioning groove 5021 and the tightening force of the first driving device 505, when the knife 501 is used for processing a wire 10, the reaction force of deformation of the wire 10 from the head end to the tail end, the step 5032 is disposed to prevent the knife cylinder 503 from sliding to the end and transmit the acting force to the knife cylinder fixture 504 to prevent the impact on the first driving device 505, in this embodiment, the positioning key 5031 is fixed on the knife cylinder 503 through a positioning key mounting hole 5033, and it should be noted that the positioning key 5031 may also be integrally formed with the knife cylinder 503, and the positions of the positioning key 5031 and the positioning groove 5021 may also be interchanged.

In this embodiment, as shown in fig. 6 and 7, a first tapered inner hole 5034 is disposed at the head end of the tool holder 503, an outer tapered surface 5022 is disposed at the tail end of the tool holder 502, the first tapered inner hole 5034 is used for fitting and fixing the outer tapered surface 5022, a tool unclamping cavity 5035 is disposed at the tail end of the first tapered inner hole 5034, the tool unclamping cavity 5035 is used for loosening the head end of the pulling claw 509 in the tool holder 503, a through hole 5036 is disposed at the tail end of the tool unclamping cavity 5035, the diameter of the through hole 5036 is smaller than that of the tool unclamping cavity 5035, the head end of the through hole 5036 is used for accommodating the unclamping assembly, so as to fasten the unclamping assembly, preferably, the circumferential surface of the first tapered inner hole 5034 is a 7:24 inner tapered surface, the direction of the main acting force applied to the tool 501 during the actual forming of the spring is the direction from the tool 501 to the head end of the, the deformation resistance of the wire 10 will make the axial positioning and fitting of the outer cone 5022 and the first tapered inner hole 5034 more tight, thereby ensuring that the cutter 501 will not loosen automatically during use.

Specifically, as shown in fig. 5, the unclamping assembly includes a blind rivet 508 and a blind claw 509, a head end of the blind rivet 508 is fixedly connected to the shank 502, a tail end of the blind rivet 508 is provided with a clamping head 5081, a head end of the blind claw 509 is provided with an elastic part 5091, the clamping head 5081 and the elastic part 5091 are matched to clamp or loosen the knife assembly, and the clamping head is used for clamping or loosening the knife assembly, in this embodiment, a tail end of the blind claw 509 is fixedly connected to a head end of a pull rod 510, a tail end of the pull rod 510 is fixedly connected to a transmission rod 5051, the transmission rod 5051 advances or retreats in a direction of the head end of the knife cylinder 503, so as to drive the clamping and loosening of the unclamping assembly, specifically, when the transmission rod 5051 moves in the head end direction, the blind claw 509 is driven to move in the head end direction of the knife cylinder 503, the elastic part 5091 of the head end of the blind claw 509, the elastic part 5091 is expanded, the clamping head 5081 at the tail end of the pull nail 508 is pulled out from the elastic part 5091, so that the cutter 501 is loosened, when the transmission rod 5051 moves towards the tail end of the cutter cylinder 503, the pull claw 509 is driven to move towards the tail end, the elastic part 5091 enters the through hole 5036 at the tail end of the cutter unclamping cavity 5035, the elastic part 5091 is gradually reduced, the clamping head 5081 is clamped and fixed, so that the cutter 501 is fixed, and when the cutter 501 is disassembled and assembled, the cutter 501, the cutter handle 502 and the pull nail 508 are synchronously disassembled and assembled as a whole.

As an embodiment of the present invention, as shown in fig. 8 and 9, the tool picking and placing installation device 6 includes a second driving device 601, the second driving device 601 is fixedly disposed on the supporting frame 8, a first rotating platform 6011 is disposed on an output end of the second driving device 601, the first rotating platform 6011 is rotatable in a horizontal plane, the first rotating platform 6011 includes a horizontal platform 6011a and a vertical platform 6011b, the vertical platform 6011b is perpendicular to the horizontal platform 6011a, the horizontal platform 6011a and the vertical platform 6011b are fixedly connected through a first supporting plate 6011c, the second driving device 601 is used to drive the tool picking and placing installation device 6 to move between the forming panel 3 and the cutter head 7, in the present invention, the tool picking and placing installation device 6 needs to reciprocate in the forming panel 3 and the cutter head 7, that is, the tool picking and placing installation device 6 only needs to rotate a fixed included angle, therefore, it is preferable, second drive arrangement 601 is revolving cylinder, and is preferable, revolving cylinder's stroke scope is 90, works as when revolving cylinder is located 0 position, cutter is got and is sent installation device 6 and take shape the panel 3 parallel for take out cutter 501 from blade disc 7, works as revolving cylinder is located 90 when locating, cutter is got and is sent installation device 6 and take shape the panel 3 perpendicular, be used for on the multistation spring machine 1 installation cutter 501, need describe, the description of revolving cylinder stroke angle here is only the utility model discloses an example, and not be used for limiting the specific protection scope of the utility model.

In this embodiment, a planetary reducer 6021 is fixedly disposed on the vertical table 6011b, one end of the planetary reducer 6021 is connected to an output end of a third driving device 602, and the other end is provided with a second rotary table 6022, the third driving device 602 can drive the second rotary table 6022 to rotate through the planetary reducer 6021, a rotation axis of the second rotary table 6022 is perpendicular to a rotation axis of the first rotary table 6011, and the rotation axis of the second rotary table 6022 is in the same horizontal plane with a central axis of the mandrel 9, the second rotary table 6022 is configured to ensure that the tool pick-and-place mounting device 6 reaches each tool 501 mounting station on the forming panel 3, so as to implement replacement of the tools 501 in multiple stations, in fact, since multiple stations are disposed on the multi-station spring machine 1, in order to implement automatic replacement of all the tools 501, the second rotary table 6022 needs to implement free rotation of 360 degrees, and precise position control is required, on this basis, it is preferable that the third driving means 602 is a servo motor.

As an embodiment of the present invention, a fourth driving device 603 is disposed on the second turntable 6022, an output end of the fourth driving device 603 is provided with a fifth driving device 604, the fourth driving device 603 is configured to drive the fifth driving device 604 to move in the length direction of the second turntable 6022, an output end of the fifth driving device 604 is provided with a sixth driving device 605, the fifth driving device 604 drives the sixth driving device 605 to move when moving, a moving direction of the sixth driving device 605 is perpendicular to a moving direction of the fifth driving device 604, an output end of the sixth driving device 605 is provided with a clamping jaw 6051, the sixth driving device 605 is configured to control the clamping jaw 6051 to clamp a clamping groove on the outer periphery of the tool holder 502 or to release the tool holder 502, specifically, in this embodiment, the fourth driving device 603 is a linear rodless cylinder, the fifth driving device 604 is a linear three-rod cylinder, the sixth driving device 605 is a clamping jaw cylinder, it should be noted that the stroke of the linear three-rod cylinder is based on the fact that the movement of the handle 502 after exiting the forming panel 3 does not interfere with components on the forming panel 3, the stroke range can be further finely adjusted by a stroke adjusting bolt on the linear three-rod cylinder, the handle 502 can be clamped when the clamping jaw cylinder is retracted, the stroke of the clamping jaw cylinder ensures that the opened clamping jaw 6051 can directly pass through the clamping part, and then the clamping jaw 6051 is closed to clamp the handle 502.

As an embodiment of the utility model, as shown in fig. 1, fig. 10, blade disc 7 sets up through blade disc mount 705 on the shaping panel 3, blade disc 7 includes blade disc base member 701, rotatable selection sword platform 702 that is provided with on the blade disc base member 701, be provided with a plurality of broach covers 703 on the selection sword platform 702, the setting that broach cover 703 can overturn is in on the selection sword platform 702, broach cover 703 is used for fixed handle of a knife 502 be provided with on the blade disc base member 701 and get the edge of a knife 704, outside the broach cover 703 of upset stretches out blade disc 7, be convenient for the cutter get and send installation device 6 to the clamp and the transport of cutter 501.

Preferably, as shown in fig. 11 and 12, a positioning portion 7031 and a second tapered inner hole 7032 are arranged on the knife sheath 703, the positioning portion 7031 is used for positioning with a positioning groove 5021, specifically, when the positioning groove 5021 is arranged on the knife handle 502, the positioning portion 7031 is arranged as a positioning key 5031, when the positioning key 5031 is arranged on the knife handle 502, the positioning portion 7031 is arranged as the positioning groove 5021, the arrangement makes the knife assembly convenient to clamp and mount, and can be quickly positioned to a required angle of the knife 501, and ensure that the angle of the knife 501 is correct, the second tapered inner hole 7032 is used for attaching and fixing the outer tapered surface 5022, an accommodating portion 7033 is arranged at the end of the second tapered inner hole 7032, and the accommodating portion 7033 is used for accommodating the pull nails 508.

Example 2

The embodiment discloses a multi-station spring machine, which comprises an automatic cutter replacing device as described in embodiment 1.

As an embodiment of the utility model, as shown in fig. 1, fig. 2, be provided with the panel 3 that takes shape on the multistation spring machine 1, take shape and be provided with linear motion slide 4 and dabber 9 on the panel 3, cutter pine presss from both sides the fixed setting of device 5 and is in 4 on the linear motion slide, linear motion slide 4 is used for controlling the position of cutter on the panel 3 that takes shape to control spring's shape is fixed to be set up cutter pine presss from both sides device 5 and is in can rational utilization current structure on the linear motion slide 4, save space, it is concrete, multistation spring machine 1 is provided with a plurality of linear motion slides 4, preferred, linear motion slide 4 has 8, and is a plurality of linear motion slide be used for setting up different cutters 501, more salient the advantage of the many varieties small batch of multistation spring machine 1.

As a preferred embodiment of the present invention, the central axis of the mandrel 9 and the rotation axis of the second turntable 6022 are in the same horizontal plane, preferably, when the tool picking and placing installation device 6 is detached from or installed on the forming panel 3, the rotation axis of the second turntable 6022 is collinear with the central axis of the mandrel 9, and this arrangement can ensure the accuracy of the tool changing action of the tool picking and placing installation device 6.

It should be noted that all terms used in the present invention for directional and positional indication, such as: "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "top", "lower", "end", "head end", "center", etc. are only used to explain the relative positional relationship, connection conditions, etc. between the respective parts in a certain specific state, and only for the convenience of description of the present invention, but not to require that the present invention must be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims

1. An automatic tool changer, characterized by comprising:

the tool unclamping device (5) is used for clamping and unclamping the tool assembly;

the cutter head (7) is provided with a cutter component for replacement;

the cutter taking and conveying installation device (6) is arranged between the cutter loosening and clamping device (5) and the cutter head (7), and is used for clamping, transporting and installing the cutter assembly between the cutter loosening and clamping device (5) and the cutter head (7).

2. An automatic tool changer according to claim 1, characterized in that the tool unclamping device (5) comprises:

the cutter barrel (503) is of a hollow structure and is used for arranging a cutter assembly and a loosening and clamping assembly;

the tool barrel clamp (504), the tool barrel clamp (504) is used for fixedly arranging the tool barrel (503) on a connecting plate (507), and the connecting plate (507) is used for fixing the tool unclamping device (5); the loose clamp assembly is arranged inside the cutter cylinder (503) and is used for realizing the loosening and clamping of the cutter assembly;

the tail end of the cutter component is inserted into the cutter barrel (503) and is fixedly connected with the head end of the loose clamp component;

the first driving device (505), a transmission rod (5051) is arranged on the first driving device (505), and the transmission rod (5051) is inserted into the tail end of the knife cylinder (503) and is fixedly connected with the tail end of the loose clamp component; the first driving device (505) is arranged on a first connecting piece (506), and the first connecting piece (506) is fixedly arranged on the connecting plate (507).

3. The automatic cutter replacing device as claimed in claim 2, wherein the cutter assembly comprises a cutter (501), a cutter handle (502) and a pull nail (508), the tail end of the cutter (501) is inserted into the cutter handle (502) and fixedly connected, and the head end of the pull nail (508) is fixedly connected to the tail end of the cutter handle (502).

4. The automatic cutter replacing device as claimed in claim 3, wherein a positioning device is arranged between the cutter handle (502) and the cutter barrel (503), the positioning device comprises a positioning groove (5021) and a positioning key (5031), and the positioning key (5031) is inserted into the positioning groove (5021) for positioning.

5. An automatic tool changer according to claim 3 or 4, characterized in that the loose clamp assembly comprises a draw pin (508) and a draw claw (509), the draw pin (508) is fixedly arranged at the end of the tool assembly, the draw claw (509) is fixedly connected with the transmission rod (5051), the transmission rod (5051) is movable towards the head end of the knife cylinder (503) to control the loose clamp assembly to be released, and the transmission rod (5051) is movable towards the end of the knife cylinder (503) to control the loose clamp assembly to be clamped.

6. The automatic cutter replacing device as claimed in claim 5, wherein a first tapered inner hole (5034) is arranged at the head end of the cutter barrel (503), an outer tapered surface (5022) is arranged at the tail end of the cutter handle (502), the first tapered inner hole (5034) is used for attaching and fixing the outer tapered surface (5022), a cutter unclamping cavity (5035) is arranged at the tail end of the first tapered inner hole (5034), the cutter unclamping cavity (5035) is used for loosening the unclamping device, a through hole (5036) is arranged at the tail end of the cutter unclamping cavity (5035), the diameter of the through hole (5036) is smaller than that of the cutter unclamping cavity (5035), and the through hole (5036) is used for clamping the unclamping device.

7. An automatic tool changer according to claim 3 or 6, characterized in that the tool pick-and-place mounting device (6) comprises:

the second driving device (601), the second driving device (601) is fixedly arranged on the supporting frame (8), a first rotary table (6011) is arranged at the output end of the second driving device (601), and the first rotary table (6011) rotates in the horizontal plane;

a third driving device (602), wherein the third driving device (602) is fixedly arranged on the first rotary table (6011), an output end of the third driving device (602) is provided with a second rotary table (6022), and the rotation axis of the second rotary table (6022) is vertical to the rotation axis of the first rotary table (6011);

a fourth driving device (603), wherein the fourth driving device (603) is arranged on the second rotary table (6022), and the output end of the fourth driving device moves along the length direction of the second rotary table (6022);

a fifth driving device (604), wherein the fifth driving device (604) is arranged at the output end of the fourth driving device (603), and the motion direction of the output end of the fifth driving device (604) is vertical to the motion direction of the output end of the fourth driving device (603);

a sixth drive (605), said sixth drive (605) being provided at the output of said fifth drive (604), said sixth drive (605) being for control of the gripping and releasing of said knife assembly;

a clamping jaw (6051), said clamping jaw (6051) being arranged on an output end of said sixth driving means (605) for gripping and releasing said tool assembly.

8. An automatic tool changer according to claim 7, characterized in that the second drive (601) is a rotary cylinder, the third drive (602) is a servomotor, the fourth drive (603) is a linear rodless cylinder, the fifth drive (604) is a linear three-rod cylinder, and the sixth drive (605) is a gripper cylinder.

9. The automatic cutter replacing device as claimed in claim 3 or 8, wherein the cutter head (7) comprises a cutter head base body (701) and a cutter selecting table (702), the cutter selecting table (702) is rotatably arranged on the cutter head base body (701), a cutter taking edge (704) is arranged on the cutter head base body (701), and the cutter taking and feeding installation device (6) finishes clamping or placing of a cutter assembly through the cutter taking edge (704).

10. The automatic cutter changing device as claimed in claim 9, wherein a cutter sleeve (703) is arranged on the cutter selecting table (702), the cutter sleeve (703) can be turned towards the outer circumference of the cutter head (7), the turned cutter sleeve (703) extends out of the cutter taking edge (704), and the cutter sleeve (703) is used for arranging a cutter assembly.

11. The automatic cutter replacing device as claimed in claim 10, wherein a positioning part (7031) is arranged on the cutter sleeve (703), and the positioning part (7031) is matched with the cutter handle (502) for positioning, so that the cutter (501) keeps a correct angle on the cutter head (7) to facilitate taking and mounting of the cutter assembly.

12. A multi-station spring machine, characterized in that it comprises an automatic tool changer according to any one of claims 1 to 11.

13. A machine according to claim 12, wherein a forming surface plate (3) is provided on said machine (1), a linearly movable slide (4) and a mandrel (9) are provided on said forming surface plate (3), and said tool release device (5) is fixedly arranged on said linearly movable slide (4).

14. A machine as claimed in claim 13, wherein the central axis of the mandrel (9) is in the same horizontal plane as the axis of rotation of the second turntable (6022).