CN114683083B - Tool magazine assembly - Google Patents

Abstract

A tool magazine assembly can drive a plurality of tool sleeves to move by a chain, and the positions where the tool sleeves are installed can avoid improper mutual contact and jamming at the turning parts of the chain, so that the steering of the chain can be designed in a more flexible manner.

Description

Tool magazine assembly

Technical Field

The invention relates to automatic processing equipment, in particular to a tool magazine assembly capable of providing the requirements of tool storage and tool changing required in the automatic processing process.

Background

The tool magazine system which is commonly used for storing tools and providing tool changing requirements can be divided into a disc type tool magazine, a bamboo hat type tool magazine and a chain type tool magazine according to the capacity, the appearance and the tool taking mode of the tool magazine, and the like, and the tool magazine system is commonly characterized by being capable of carrying and running a plurality of tools. Although the development of the existing tool magazine system is mature, the improvement and refinement of the problem of influence of the load of the tool magazine combined with the tool bar (the tool is inserted into the tool bar) on the smoothness of the tool magazine operation are still in the mind of the related operators.

Taking a chain type tool magazine as an example, no matter the tool sleeve is designed to be pushed outwards so that a tool changing arm of an automatic tool changing mechanism can buckle a tool bar on the tool sleeve, or is designed to be pivoted in situ so that the tool changing arm can smoothly buckle the tool bar on the tool sleeve, the tool sleeves are combined on the outer side of a revolving chain of the chain type tool magazine, namely, one side deviating from the revolving center, and the structures disclosed in the patent application of I494190 'tool magazine chain frame guide device' and the patent application of M457602 'chain type tool magazine for a machine tool' of the Chinese taiwan bulletin belong to the utility model patent application. The cutter sleeves disclosed in the above patent technology are all positioned on the outer side of the chain, so that in order to avoid the situation that adjacent cutter sleeves are blocked by each other inappropriately in the running process, the running path of the chain cannot be designed in a reverse folding way, namely, the chain can only run in one direction, and the situation limits the number of the cutter sleeves which can be carried by the cutter magazine.

In addition, the known chain magazine is provided with pallets on both sides of the chain along the running path of the chain for supporting the tool magazine, thereby improving the stability of the chain during running. However, the surface contact between the sleeve and the pallet increases the contact friction force generated when the number of sleeves is increased, which increases the load of the driving mechanism (such as a motor), and the sleeve and the pallet are worn by long-term contact to generate noise.

Disclosure of Invention

Therefore, the present invention is directed to a tool magazine assembly, which can increase the number of chain-carrying tool sleeves and make the chain run smoothly.

The present invention provides a tool magazine assembly comprising a body, a rail, a chain, a plurality of tool sleeves, a tool sleeve holding structure and a tool reversing mechanism. Wherein the body has a mounting surface; the track is combined with a mounting surface of the body, the track is a loop formed by a running section and a cutter taking section, the cutter taking section is provided with a first guide rail and a second guide rail which are arranged at equal intervals, the first guide rail is provided with a first guide groove and a first restraining surface, the second guide rail is provided with a second guide groove and a second restraining surface, the first restraining surface and the second restraining surface are arranged opposite to each other, the preset position of the cutter taking section is defined as an inverted cutter position, the chain comprises a plurality of chain link blocks which are connected in series with each other, each chain link block is provided with a first guide wheel and a second guide wheel, and two sides of the first guide wheel and the second guide wheel are respectively provided with a first restraining part and a second restraining part, when the chain link blocks pass through the cutter taking section, the first guide wheel is positioned in the first guide groove, the second guide wheel is positioned in the second guide groove, the restraining parts positioned at two sides of the first guide wheel are contacted with the first restraining surfaces, the restraining parts positioned at two sides of the second guide wheel are contacted with the second restraining surfaces, the cutter sleeves are respectively pivoted with a corresponding chain link block and can be pivoted with the second swing sleeve in a first position and can be pivoted with the second swing sleeve in a forward direction, and a second swing sleeve can be pivoted with the second swing sleeve in a forward direction, and a forward direction can be prevented from being pivoted with the second swing sleeve, and a forward direction can be pivoted with the second swing sleeve can be pivoted with the cutter sleeve in a forward direction, and a forward direction can be pivoted to the cutter can be pivoted.

The invention has the advantages that the steering of the chain can be designed in a more flexible way, the number of the cutter sleeves is increased, and the configuration relation between the guide rail and the guide wheel on the chain can improve the stability of the chain during operation.

Drawings

FIGS. 1 and 2 are perspective views of a tool magazine assembly according to a preferred embodiment of the present invention;

FIG. 3 is a simplified front view of the tool magazine assembly according to the preferred embodiment of the present invention;

FIG. 4 is a partial perspective view of the tool magazine assembly according to the preferred embodiment of the present invention;

FIG. 5 is a side view of FIG. 4, showing the sleeve in a first position;

FIG. 6 is a front view of FIG. 4;

FIG. 7 is a perspective view of a portion of the components of the tool magazine assembly according to the preferred embodiment of the present invention;

FIG. 8 is a side view of the holster from among the components shown in FIG. 7;

FIG. 9 is a side view showing the sleeve in the second position, and

Fig. 10 is a sectional view taken along the direction 10-10 of fig. 3.

[ Symbolic description ]

100 Tool magazine assembly

10 Body

10A mounting surface

20 Track

22 Guiding plate

24 First guide rail

241 Rail bar

24A first guide groove

24B first constrained surface

26 Second guide rail

261 Rail bar

26A second guide groove

26B second constrained surface

28 Guide rail

281 Rail bar

28A guide groove

30 Chain

32 Chain link block

32A screw hole

32B pin holes

34 First guide wheel

36 Second guide wheel

38 Roller wheel

40 Knife sleeve

40A front end

40B rear end

40C accommodating hole

40D pivot hole

42 Bump

44 Reverse knife plate

44A guide groove

46 Front support

48 Rear supporting piece

50 Knife sleeve holding structure

51 Front stop

51A L-baffle

52 Rear stop

521 Mounting plate

521A holes

522 Pivot ear

522A holes

53 Bolt

54 Shaft lever

55 Bearing seat

55A concave interface

56 Pin

60-Reversing mechanism

61 Saddle

62 Cylinder body

63 Push-pull member

64 Reverse cutter pulley

65 Guide rod

66 Fixing plate

67 Wheel seat

70 Automatic tool changing mechanism

72 Cam box

74 Motor

76 Tool changing arm

80 Drive motor

82 Drive wheel

L is a cutter taking section

L1:baseline

L2 axis

G notch

P1:first position

P2:second position

T-knife bar

Detailed Description

In order to more clearly illustrate the present invention, a preferred embodiment will be described in detail with reference to the accompanying drawings. Referring to fig. 1 to 3, a magazine assembly 100 according to a preferred embodiment of the present invention is exemplified by a chain magazine capable of storing a plurality of tools, and the magazine assembly 100 includes a body 10, a rail 20, a chain 30, a plurality of tool holders 40, a tool holder holding structure 50, a tool reversing mechanism 60, and an automatic tool changing mechanism 70. The body 10 has a solid structure and a mounting surface 10a, and the rail 20 and the reverse cutter mechanism 60 are combined on the mounting surface 10a. The automatic tool changing mechanism 70 is coupled to the other surface of the body 10 facing away from the mounting surface 10a.

The track 20 is composed of a plurality of long structures, including a loop with a cutter-taking section and a running section, and a guiding plate 22 is added at the turning position. In this embodiment, the portion of the rail 20 corresponding to the reversing mechanism 60 is a cutter-taking section L disposed along the horizontal direction, the portion of the rail 20 other than the cutter-taking section L is defined as a running section, referring to fig. 4, the rail 20 is composed of two guide rails disposed at equal intervals at the cutter-taking section L, respectively, a first guide rail 24 and a second guide rail 26, the rail 20 is composed of a single guide rail 28 at the running section, in which the guide rails (24, 26, 28) are each composed of two parallel rails of a strip-shaped structure, and in addition, as shown in fig. 5 and 6, the first guide rail 24 forms a first guide groove 24a between adjacent rails 241, the bottom surface of each rail 241 is defined as a first restraining surface 24b, the second guide rail 26 is also formed between adjacent rails 261, the top surface of each rail 261 is defined as a second restraining surface 26b, and the first restraining surface 24b and the second restraining surface 26b are disposed in opposition to each other. Referring to fig. 10, the track of the guide rail 28 forming the running section is continuous with the first guide rail 24 and is formed of two rail bars 281 having the same configuration as the first guide rail 24, and a guide groove 28a is formed between the adjacent rail bars 281. In addition, the middle part of the cutter taking section L is defined as a cutter reversing position.

The chain 30 includes a plurality of link blocks 32 connected in series and capable of swinging around the connecting portion as a pivot, as shown in fig. 7, each link block 32 is respectively connected to a first guide wheel 34 and a second guide wheel 36 at opposite sides, and one or more restraining members, such as rollers 38, are respectively disposed at two sides of the first guide wheel 34 and the second guide wheel 36, and the guide wheels and the rollers are respectively rotatable around a central line, and the central line passing through the first guide wheel 34 and the second guide wheel 36 is orthogonal to the central line passing through the rollers 38 on a projection plane. In addition, a base line L1 is defined to pass through the link block 32 in parallel with the center line of the roller 38, that is, the first guide wheel 34 and the second guide wheel 36 are symmetrically located at two sides of the base line L1 in an equidistant manner, and the link block 32 has a plurality of screw holes 32a and pin holes 32b around the base line L1.

The cutter sleeves 40 are respectively pivoted to a corresponding link block 32 to pivot, the basic body of the cutter sleeve 40 is cylindrical and has a front end 40a and a rear end 40b opposite to each other, the cutter sleeve 40 has a receiving hole 40c recessed from the front end 40a to the rear end 40b, the cutter bar T enters and exits the receiving hole 40c along an axis L2 passing through the receiving hole 40c, and a cutter locking structure (not shown) is hidden at the bottom of the receiving hole 40c to stabilize the cutter bar T in the receiving hole 40 c. As shown in fig. 7 and 8, a protruding block 42 is integrally formed on the outer wall of each cutter sleeve 40, a detachable reverse cutter plate 44 is locked on the protruding block 42, the reverse cutter plate 44 has a guiding groove 44a that is diagonally cut and forms an open port at one end, the cutting direction of the guiding groove 44a maintains a predetermined angle with the axis L2, a front supporting piece 46 located in the radial direction is further disposed on the outer wall of each cutter sleeve 40, and the front supporting piece 46 in this embodiment is formed by rollers and maintains a gap with the reverse cutter plate 44. The rear end 40b of the cutter sleeve 40 has a rear abutment 48, and the rear abutment 48 of the present embodiment is formed by integrally forming the rear end 40b of the cutter sleeve 40 to protrude outwards, but it is also possible to lock a protrusion to the rear end 40b of the cutter sleeve 40 to form the rear abutment.

Referring to fig. 4-8, the sleeve retaining structure 50 includes a front stop 51 disposed on the blade-removing section L of the rail 20, and a rear stop 52 disposed on each link block 32. The front baffle member 51 is formed by two L-shaped baffle plates 51a, and the two L-shaped baffle plates 51a are locked on the rail 241 of the first guide rail 24, which is relatively far away from the main body 10, at a certain distance, and a gap G is formed at the certain distance, and the gap G corresponds to the reverse cutter position of the middle part of the cutter taking section L. In other embodiments, the front baffle may be a single L-shaped baffle and the notch may be reserved for the reverse position. The rear blocking member 52 of the cutter sleeve holding structure 50 is a reverse U-shaped folded plate comprising a mounting plate 521 and two pivot lugs 522 connected to the mounting plate 521, the rear blocking member 52 is correspondingly inserted into the screw holes 32a and the insertion pin holes 32b of the chain link block 32 through the bolts 53 and the pins 56 respectively, and the cutter sleeve 40 is pivoted to the chain link block 32 through the shaft rod 54 passing through the holes 522a of the pivot lugs 522 and the pivot holes 40d of the cutter sleeve 40. In the foregoing, the cutter sleeve 40 is pivoted to the link block 32 indirectly through the rear blocking member 52, but in practice, the link block may be integrally formed with a pivot ear structure, so that the cutter sleeve can be pivoted to the link block directly. In addition, the cutter holder structure 50 further includes a supporting seat 55 (see fig. 4), the supporting seat 55 is disposed below the second rail 26 of the rail 20 and is located below the body 10, and corresponds to the reverse cutter position of the middle portion of the cutter-taking section L, and the supporting seat 55 has a concave interface 55a.

The reversing mechanism 60 includes a saddle 61, a cylinder 62, a push-pull member 63, a reversing pulley 64, and a guide rod 65. The saddle 61 is combined with the mounting surface 10a of the body 10, the cylinder 62 and the push-pull member 63 form a cylinder structure capable of driving the push-pull member 63 to move by controlling the pressure change in the cylinder 62, wherein the cylinder 62 is arranged in the saddle 61, the push-pull member 63 is a piston rod, one end of the piston rod is positioned in the cylinder 62, the other end of the piston rod passes through the saddle 61 and is connected with a fixing plate 66, a reverse-U-shaped wheel seat 67 is fixedly connected below the fixing plate 66, the reverse-knife pulley 64 is pivoted with the wheel seat 67, the guide rod 65 passes through the saddle 61 in a manner of being parallel to the push-pull member 63, one end of the guide rod 65 is connected with the fixing plate 66, and when the push-pull member 63 generates linear reciprocating displacement, the guide rod 65 can be synchronously driven to move, and the guide rod 65 is used for strengthening the stability of the push-pull member 63 during displacement. The reversing pulley 64 can enter the guide groove 44a of the reversing plate 44 on the reversing sleeve 40 at the reversing position, and push or pull the sleeve 40 downwards or upwards along with the up-and-down movement of the push or pull member 63, so that the sleeve 40 at the reversing position can pivot between the first position P1 shown in fig. 5 and the second position P2 shown in fig. 9 with the shaft 54 as a fulcrum, wherein when the sleeve 40 is at the first position P1, the axis L2 coincides with the base line L1, and when the sleeve 40 is at the second position P2, the sleeve 40 abuts against the concave interface 55a of the bearing seat 55. As defined herein, the direction in which the cutter sleeve 40 swings from the first position P1 of the horizontal disposition to the second position P2 of the vertical disposition is a first direction, and the direction in which the cutter sleeve 40 swings from the second position P2 of the vertical disposition to the first position P1 of the horizontal disposition is a second direction, i.e., the first direction and the second direction are opposite directions. It should be noted that the installation position of the reverse cutter pulley 64 is preferably located at a side deviated from the vertical movement path of the push-pull member 63, as shown in fig. 5, and the guide groove 44a of the reverse cutter plate 44 is inclined, so as to ensure smooth guiding of the push-pull sleeve 40.

Referring to fig. 2, the automatic tool changer 70 includes a cam box 72, a motor 74, and a tool changing arm 76. The cam box 72 is combined with the body 10, the motor 74 and the tool changing arm 76 are respectively located at two sides of the cam box 72, the motor 74 provides power required for driving the tool changing arm 76 to perform a tool changing operation, and the tool changing arm 76 is used for grabbing a tool bar T which is stopped at the tool reversing position and is located in the tool sleeve 40 at the second position P2 so as to perform the tool changing operation. Since the automatic tool changing mechanism 70 is known in the art, it will not be described in detail herein.

The foregoing is a structural description of the magazine assembly 100 according to the preferred embodiment of the present invention, and the following description is provided for effectively increasing the number of carrier sleeves and improving the stability of the chain during operation.

As shown in fig. 5 to 7, the cutter sleeve 40 of the present embodiment is pivotally mounted on one side of the link block 32, and the cutter sleeve 40 is horizontally disposed at the first position P1, so that the axis L2 passing through the center of the cutter sleeve 40 coincides with the base line L1 of the link block 32, and the above-mentioned structural relationship makes the cutter sleeve 40 not be blocked by each other at the reverse-turn-around portion of the running path of the chain 30 when changing position along with the movement of the chain 30, which improves the disadvantage that the chain disclosed in the above-mentioned patent technologies such as the taiwan bulletin I494190 "tool magazine chain frame guide" and the bulletin M457602 "machine chain type tool magazine" can only unidirectionally turn around the outside of the chain (i.e. the side deviating from the center of rotation) of the cutter sleeve position, but cannot reversely turn around to change the running path. Therefore, under the limited area of the body 10 capable of loading the track, the tool magazine assembly of the present invention can be designed in a multi-turn rotation manner because the track 20 and the chain 30 can be changed at will, thereby increasing the length of the chain 30 to enable the chain 30 to carry a greater number of tool sleeves 40.

When the driving motor 80 drives the chain 30 to run along the track 20 through the driving wheel 82, the first guide wheel 34 and the second guide wheel 36 of the link block 32 passing through the blade taking section L of the track 20 will enter the first guide groove 24a of the first guide rail 24 and the second guide groove 26a of the second guide rail 26 respectively as shown in fig. 5, and the rollers 38 (restraining members) at both sides of the first guide wheel 34 are contacted with the first restraining surface 24b of the bottom surface of the rail 241, and the rollers 38 (restraining members) at both sides of the second guide wheel 36 are contacted with the second restraining surface 26b of the top surface of the rail 261 respectively, so that the link block 32 is limited from the up-down and left-right directions and can stably move in the blade taking section L, even if the link block 32 reaches the reversing position, the link block 32 is limited in all directions without single-side stress. At the same time, the front abutment 46 on the sleeve 40 abuts against the L-shaped baffle 51a constituting the front abutment 51, so that the sleeve 40 does not swing downward due to its own weight, in other words, the front abutment 51 of the sleeve holding structure 50 restricts the sleeve 40 from pivoting in the first rotational direction. It should be noted that, although the first rotation direction is counterclockwise in the state shown in fig. 5, the first rotation direction is not necessarily counterclockwise depending on the position of the cutter sleeve 40, for example, the cutter sleeve 40 in the horizontal section above the position track 20 shown in fig. 3 and 10 has the front abutment 46 located below the shaft 54, so the first rotation direction in this state is clockwise.

When one of the link blocks 32 moves to the reversing position, the cutter sleeve 40 pivoted to the link block 32 will correspond to the reversing pulley 64 of the reversing mechanism 60 with the guide slot 44a of the reversing plate 44, and when the push-pull member 63 is controlled to move downward, the reversing pulley 64 swings the reversing sleeve 40 in the first rotation direction, and the front abutment member 46 on the cutter sleeve 40 can just pass through the gap G until the cutter sleeve 40 abuts against the concave interface 55a of the bearing seat 55 and stops at the second position P2, so far, the cutter changing arm 76 can smoothly grasp the cutter bar T in the cutter sleeve 40.

In addition, for the chain link block 32 passing through the running section of the track 20, the first guide wheel 34 enters the guide groove 28a of the guide rail 28 to obtain limit, and the guide plate 22 is additionally arranged at the turning position of the track 20, so that the chain 30 can stably run. Since the chain 30 mainly passes through the guide rail of the long strip structure body to achieve the limiting purpose, no additional supporting plate is needed to be arranged on two sides of the chain 30 along the running path, so that the defect that the cutter sleeve of the conventional chain type cutter magazine is easy to touch with the supporting plate to generate excessive friction force can be overcome, and the generation of noise can be effectively reduced. Although the track 20 of the present embodiment has no support plate, the knife holder 40 at the horizontal section above the track 20 tends to swing downward due to its own weight, the rear abutment member 48 of the rear end 40b of the knife holder 40 abuts against the mounting plate 521 of the rear blocking member 52, so as to avoid the improper downward swing of the knife holder 40 and maintain the horizontal swing at the first position P1, in other words, the rear blocking member 52 in this state limits the knife holder 40 from being able to pivot in the second rotation direction.

In summary, the tool magazine assembly of the invention can be designed in a more flexible way because the steering of the chain is not limited by the position of the tool sleeves, which is beneficial to the increase of the number of the tool sleeves, and in addition, the track is mainly configured by the guide rail of the strip-shaped structure body and the guide wheel on the chain, so that the stability of the chain in running can be improved. The foregoing description is only of the preferred embodiments of the invention, and is therefore intended to cover all modifications that fall within the true scope of the invention, as defined by the following claims.

Claims (8)

1. A tool magazine assembly, comprising:

a body having a mounting surface;

the track is combined with the mounting surface of the body and is a loop formed by a running section and a cutter taking section, the cutter taking section of the track is provided with a first guide rail and a second guide rail which are arranged at equal intervals, the first guide rail is provided with a first guide groove and a first restraint surface, the second guide rail is provided with a second guide groove and a second restraint surface, the first restraint surface and the second restraint surface are arranged in a face-to-face manner, and the preset position of the cutter taking section is defined as a cutter reversing position;

A chain comprising a plurality of chain link blocks connected in series, each chain link block having a first guide wheel and a second guide wheel, and a restraining member respectively disposed on two sides of the first guide wheel and the second guide wheel, when the chain link block passes through the cutter-taking section, the first guide wheel is positioned in the first guide groove, the second guide wheel is positioned in the second guide groove, the restraint members positioned at the two sides of the first guide wheel are contacted with the first restraint surface, and the restraint members positioned at the two sides of the second guide wheel are contacted with the second restraint surface;

the cutter sleeves are respectively pivoted to the corresponding chain link blocks and can pivot and swing in a first rotation direction and a second rotation direction between a first position and a second position by taking the pivoted part as a fulcrum, wherein the first rotation direction and the second rotation direction are opposite directions;

A holder structure for the tool holder, comprising a front stop at the tool-taking section corresponding to the track, and a rear stop on each of the link blocks, wherein the front stop limits the pivoting of the tool holder in the first direction, and the rear stop limits the pivoting of the tool holder in the second direction, and

The cutter reversing mechanism is combined with the body and comprises a push-pull piece, and the push-pull piece is controlled to drive the cutter sleeve positioned at the cutter reversing position to pivot between the first position and the second position.

2. The tool magazine assembly of claim 1, wherein each of the link blocks defines a base line, the first guide wheel and the second guide wheel being located on opposite sides of the base line, each of the tool sleeves defining an axis, wherein the axis coincides with the base line when the tool sleeve is in the first position.

3. The tool magazine assembly of claim 2, wherein an inverted knife plate is attached to the outer wall of each of the knife sleeves, the inverted knife plate has a guide slot, an inverted knife pulley is attached to one end of the push-pull member of the inverted knife mechanism, the inverted knife pulley cooperates with the guide slot of the inverted knife plate on the knife sleeve at the inverted knife position, and enters the guide slot when the push-pull member moves.

4. The tool magazine assembly of claim 3, wherein the reverse cutter pulley is located on a side offset from the path of travel of the push-pull member, and the guide slot of the reverse cutter plate is a chute forming an angle with the axis.

5. The tool magazine assembly of claim 3, wherein the tool reversing mechanism comprises a saddle, a cylinder and a guide rod, the saddle is combined with the mounting surface of the body, the cylinder is arranged on the saddle, one end of the push-pull member is positioned in the cylinder, the other end of the push-pull member passes through the saddle and is connected with the tool reversing pulley, the push-pull member can be driven to linearly reciprocate by controlling the pressure change in the cylinder, and the guide rod passes through the saddle and synchronously moves with the push-pull member.

6. The tool magazine assembly of claim 1, wherein the front blocking member of the tool holder holding structure is connected to the first guide rail and has at least one blocking plate, the blocking plate has a notch corresponding to the tool reversing position, each rear blocking member has a mounting plate and two pivot lugs connected to the mounting plate, the mounting plate is connected to the corresponding chain link block, each tool holder is pivoted between the two pivot lugs with its rear end, the outer wall of each tool holder has a front abutment member arranged in the radial direction, and a rear abutment member arranged at the rear end, wherein when the chain link block passes through the tool taking section, the front abutment member abuts against the blocking plate, when one of the chain link blocks moves to the tool reversing position, the push-pull member of the tool reversing mechanism can drive the tool holder corresponding to the tool reversing position to pivot, and the front abutment member passes through the notch, and when the rear abutment member abuts against the mounting plate, the tool holder is held in the first position.

7. The tool magazine assembly of claim 1, wherein the tool holder retaining structure comprises a seat disposed on the body, and the tool holder abuts against the seat when the push-pull member of the reversing mechanism drives the tool holder at the reversing position to pivot to the second position.

8. The tool magazine assembly of claim 7, comprising an automatic tool changing mechanism coupled to the other side of the body opposite the mounting surface, the automatic tool changing mechanism comprising a tool changing arm for grasping a tool bar in abutment with the tool sleeve of the abutment.