Tool transport mechanism of chain-type tool magazine

Abstract

A tool transport mechanism for a chain-type tool magazine includes a frame, a track, a moving unit and an actuating cylinder, wherein the track is arranged on the frame and has an arc section, the moving unit can move along the track, the moving unit has a tool clamp that can clamp or release a tool sleeve, the actuating cylinder can be rotatably connected to the frame, and a push-pull rod of the actuating cylinder can push or pull back the moving unit to move the tool sleeve between two fixed positions and can synchronously change the swing direction of the tool sleeve.

Description

Technical Field

[0001] The present invention relates to a chain-type tool magazine of a machining center, and in particular to a tool transport mechanism of the chain-type tool magazine. Background Art

[0002] Conventional machine tool chain magazines feature multiple tool holders mounted on a chain. These holders are fitted with tool bars, which in turn hold the tools needed for machining. By rotating the chain, the tool bars are positioned so that the appropriate tool can be retrieved for subsequent machining operations. In response to the needs of the processing environment, the existing chain-type tool magazine provides a method for removing tools, such as setting a tool guide mechanism at a preset position, which directly guides the tool sleeve at that location outward and rotates it ninety degrees so that the tool changing arm of the tool changing mechanism can smoothly buckle the tool rod on the tool sleeve, such as Taiwan Publication No. I496654 "Knife Guide Mechanism of Chain Tool Magazine" and I424899 "Knife Guide Mechanism (III) of Chain Tool Magazine" patents; there is also a pushing mechanism set at a preset position to push the tool sleeve on the chain outward and separate it from the chain, so that the tool sleeve is brought to the tool buckling position and is buckled by the tool changing arm of the tool changing mechanism. The aforementioned technology is exemplified by Taiwan Publication No. I424899 "Chain Tool Magazine Pushing Auxiliary Mechanism".

[0003] In the above-mentioned patented technology with a knife guide mechanism, the knife sleeve is never separated from the chain and can only be rotated 90 degrees in its original position, which invisibly limits the scope of application; although the above-mentioned patented technology with a pushing mechanism can push the knife sleeve outward and separate it from the chain, the knife sleeve is pushed out in a translational manner. Although it has applicable occasions, it still has limitations on the scope of use. Summary of the Invention

[0004] In view of this, an object of the present invention is to provide a tool transport mechanism for a chain-type tool magazine, which enables the tool sleeve to be separated from the chain and the tool sleeve to change its swing direction.

[0005] To achieve the above-mentioned objectives, the present invention provides a tool transport mechanism for a chain-type tool magazine, which is used to move a tool holder of the chain-type tool magazine between two positions. The mechanism comprises a frame, a track, a moving unit, and an actuating cylinder. The track is disposed on the frame and has an arcuate section. The moving unit comprises a slide and a tool holder. The slide is movably coupled to the track. The tool holder comprises a fixed clamping plate and a movable clamping plate. The fixed clamping plate is fixedly coupled to the slide. The movable clamping plate can be moved toward or away from the fixed clamping plate to clamp or release the tool holder. The actuating cylinder comprises a push-pull rod capable of receiving an applied force and moving forward and backward. When the push-pull rod moves forward and backward, it can drive the slide to move along the arcuate section of the track.

[0006] The effect of the present invention is that it can drive the tool sleeve to move back and forth between two positions at a fixed point and synchronously change the swing direction of the tool sleeve, so that the chain-type tool magazine can provide the market with more diverse choices and applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 A perspective view of a chain-type tool magazine including a tool transport mechanism according to a first preferred embodiment of the present invention;

[0008] Figure 2 A three-dimensional diagram of the knife-moving mechanism of the preferred embodiment of the present invention;

[0009] Figure 3 for Figure 2 A three-dimensional diagram of the knife-moving mechanism from another perspective;

[0010] Figure 4 for Figure 2 A top view showing the knife sheath in a standby position;

[0011] Figure 5 for Figure 2 An exploded view of some components of the knife transport mechanism shown;

[0012] Figure 6 for Figure 5 A combined perspective view of the components shown;

[0013] Figure 7 for Figure 6 Left side view;

[0014] Figure 8 for Figure 6 A top view of

[0015] Figure 9 It is a top view, showing the knife sheath is in the knife-locking position;

[0016] Figure 10 A perspective view of a knife-moving mechanism according to a second preferred embodiment of the present invention;

[0017] Figure 11 for Figure 10 A three-dimensional diagram of some components of the knife-moving mechanism shown;

[0018] Figure 12 for Figure 10 A top view of

[0019] Figure 13 A perspective view of a knife-moving mechanism according to a third preferred embodiment of the present invention;

[0020] Figure 14 for Figure 13 Exploded view of

[0021] Figure 15for Figure 14 A stereogram from another perspective;

[0022] Figure 16 for Figure 13 An exploded view of some components of the knife-moving mechanism shown; and

[0023] Figure 17 for Figure 13 A three-dimensional diagram of some components of the knife transport mechanism shown.

[0024]

Explanation of symbols

[0025] 100,100A,100B: knife transport mechanism

[0026] 10,10A,10B: rack

[0027] 11: Baffle

[0028] 12: Bolt

[0029] 13: Support seat

[0030] 14: Column

[0031] 15: Bolt

[0032] 20,20A,20B: Track

[0033] 22: Arc segment

[0034] 24: First straight line segment

[0035] 26: Second straight line segment

[0036] 28: ribs

[0037] 30,30A,30B: mobile unit

[0038] 31: Slide

[0039] 311: Bottom plate

[0040] 312: Steering seat

[0041] 313: Pillar

[0042] 314: Bearing

[0043] 32: Pulley

[0044] 32a: groove

[0045] 33: knife clip

[0046] 331:Fixed splint

[0047] 331a: Grooving

[0048] 331b: Clamp

[0049] 331c: Perforation

[0050] 332: Mobile splint

[0051] 332a: Bump

[0052] 332b: Perforation

[0053] 34: Guide rod

[0054] 35: Spring

[0055] 36: Limit rod

[0056] 37: Rocker arm

[0057] 37a: Long slot hole

[0058] 38: Pivot

[0059] 39: Middleware

[0060] 40: Gasket

[0061] 41: Nut

[0062] 42: Axis

[0063] 43:Middleware

[0064] 44:Fixed splint

[0065] 45: Rocker arm

[0066] 451: shaft tube

[0067] 452: Upper arm

[0068] 453: Lower arm

[0069] 454: Long slot hole

[0070] 454a: Straight section

[0071] 454b: Turning point

[0072] 46: Pivot

[0073] 47: Slide seat

[0074] 50,50A,50B: Actuating cylinder

[0075] 52: Cylinder

[0076] 52a: Backend

[0077] 52b: Front-end

[0078] 54: Push-pull rod

[0079] 56: Axis

[0080] 57: Cylinder

[0081] 57a: shaft

[0082] 58: Splint

[0083] 59: Push-pull rod

[0084] 60:Middleware

[0085] 61: Slide

[0086] 61a: Bottom plate

[0087] 62: Pivot

[0088] 62a: Ring gear portion

[0089] 63: Rocker arm

[0090] 63a: Long slot hole

[0091] 63b: Perforation

[0092] 64:Bundle

[0093] 64a: shaft hole

[0094] 64b: screw hole

[0095] 64c: slot

[0096] 64d: Keyhole

[0097] 65: Bolt

[0098] 66: Bolt

[0099] 67: Cylinder

[0100] 68: Push-pull rod

[0101] 69: Tooth row

[0102] 70: Small gear

[0103] 71: Stabilizer

[0104] 72: Upper support plate

[0105] 73: Lower support plate

[0106] 74: Connecting plate

[0107] 75: Column

[0108] 76: Baffle

[0109] 200: Chain tool magazine

[0110] 201: Matrix

[0111] 202: Chain

[0112] 203: Knife sheath

[0113] 203a: Positioning hole

[0114] 204: Tool bar

[0115] P1: Standby position

[0116] P2: Knife clamping position DETAILED DESCRIPTION

[0117] In order to explain the present invention more clearly, several preferred embodiments are given below and described in detail with reference to the accompanying drawings. Figure 1 FIG. 1 shows a chain-type tool magazine 200 including a tool transport mechanism 100 according to a first preferred embodiment of the present invention. The chain-type tool magazine 200 comprises a base 201 and a chain 202 that can be controlled to rotate along the periphery of the base 201. The chain 202 carries a plurality of tool holders 203, each of which houses a tool bar 204. The tool transport mechanism 100 of this embodiment is mounted on one side of the base 201 and is used to move the tool holders 203 between two positions. The tool holders 203 have different swing directions in these two positions: a standby position and a tool-engaging position. The standby position is a preset position of the tool holder 203 on the chain 202. The tool-engaging position is a position in which the tool holder 203 is moved from its preset position to a position close to a tool changing mechanism (not shown) to facilitate the tool changing arm's access to the tool holder.

[0118] Please refer to Figures 2 to 4 As shown, the knife-moving mechanism 100 of this embodiment includes a frame 10, a track 20, a moving unit 30, and an actuating cylinder 50. The frame 10 is fixed to a base 201; the track 20 is disposed on a surface of the frame 10 and comprises an arcuate segment 22, a first straight segment 24, and a second straight segment 26. The first straight segment 24 and the second straight segment 26 respectively connect the ends of the arcuate segment 22, and the first straight segment 24 and the second straight segment 26 extend perpendicularly to each other.

[0119] Please refer to Figures 5 to 8As shown, the moving unit 30 of this embodiment is used to drive the tool holder 203 to move along the track 20. It includes a slide 31, a pulley 32, a tool holder 33, a guide rod 34, a spring 35, a limit rod 36, a rocker arm 37, a pivot 38, and an intermediate member 39. The slide 31 includes a base plate 311 and two steering bases 312. Two pillars 313 are connected to the bottom surface of the base plate 311. The middle portion of each steering base 312 is connected to a corresponding pillar 313 and can rotate around the pillar 313. Preferably, a bearing 314 is installed between the steering base 312 and the pillar 313 to improve the smoothness of the steering base 312's rotation. There are a plurality of pulleys 32, which are connected to both ends of the steering seat 312 in a group of two. These pulleys 32 are distributed on both sides of the track 20 and contact the track 20 so that the slide 31 can be movably coupled to the track 20. Preferably, the track 20 has a rib 28 on the periphery, and the pulleys 32 have grooves 32a and the rib 28 are configured to improve the stability of the slide 31 coupled to the track 20.

[0120] The tool holder 33 is used to clamp or release the tool sleeve 203. The tool holder 33 includes a fixed plate 331 and a movable plate 332. The fixed plate 331 is fixedly attached to the slide 31, while the movable plate 332 is designed to move relative to the fixed plate 331 without contacting the slide 31. In this embodiment, the fixed plate 331 is vertically fixed to the base plate 311 and has a transverse slot 331a and a laterally protruding clamping block 331b. The fixed plate 331 has a through-hole 331c at its upper and lower portions, respectively, separated by the slot 331a. The movable clamping plate 332 is fixedly connected to a number of guide rods 34 corresponding to the aforementioned through-holes 331c. One end of the guide rod 34 passes through a corresponding through-hole 331c, and then passes through a spring 35 and a washer 40, and is locked with a nut 41 to form a stop. This allows the movable clamping plate 332 to move toward or away from the fixed clamping plate 331 without deflection. It should be noted that in the normal state of the aforementioned tool holder 33, that is, when the chain 202 is under control, the tool holder 203 can pass through the space between the fixed clamping plate 331 and the movable clamping plate 332 without interference as the chain 202 moves.

[0121] The two ends of the spring 35 act on the fixed clamping plate 331 and the nut 41 respectively. When the knife sleeve 203 leaves the standby position, the elastic force of the spring 35 causes the movable clamping plate 332 to move toward the fixed clamping plate 331 ( Figure 8The imaginary line indicates that the movable clamping plate 332 moves toward the fixed clamping plate 331), which can ensure that the knife sleeve 203 is stably clamped between the clamping block 331b of the fixed clamping plate 331 and the movable clamping plate 332; conversely, when the movable clamping plate 332 moves away from the fixed clamping plate 331, the knife sleeve 203 can be released. It is worth mentioning that in order to prevent the clamped knife sleeve 203 from accidentally slipping off the knife clamp 33, an anti-slip structure can be optionally provided on the aforementioned clamping block 331b and the movable clamping plate 332, or as in the present embodiment, a positioning recess formed by a positioning hole 203a is provided on the knife sleeve 203, and a positioning protrusion formed by a protrusion 332a is provided on the movable clamping plate 332, and the protrusion 332a is inserted into the positioning hole 203a to prevent the knife sleeve 203 from accidentally slipping off. The aforementioned protrusion 332a can of course also be provided on the clamping block 331b of the fixed clamping plate 331 as needed, or be provided on the movable clamping plate 332 and the clamping block 331b at the same time; the aforementioned positioning hole 203a and the protrusion 332a can be interchangeable and the number is not limited to one. In addition, one or more limiting rods 36 can be optionally fixed to the fixed splint 331, and a number of through holes 332b equivalent to the aforementioned limiting rods 36 can be set on the movable splint 332. The limiting rods 36 pass through the through holes 332b, thereby improving the stability of the movable splint 332 when moving relative to the fixed splint 331.

[0122] Please cooperate Figures 2 to 5 The rocker arm 37 of the mobile unit 30 is pivotally connected to the frame 10 via the pivot 38. The rocker arm 37 has an elongated slot 37a. During assembly, the intermediate member 39 is first placed in the elongated slot 37a, then moved into the slot 331a. A shaft 42 is then passed through the fixed plate 331 and aligned with the intermediate member 39. This prevents the rocker arm 37 from separating from the fixed plate 331. Although the rocker arm 37 is pivoted around the pivot 38, it can only swing within the length of the elongated slot 37a. The intermediate member 39 frequently contacts the walls of the elongated slot 37a. Therefore, it is preferable that the intermediate member 39 be wear-resistant and capable of rotation. Preferably, a bearing is used for the intermediate member 39. In addition, although the aforementioned intermediate member 39 is connected to the fixed clamping plate 331 , in practice, when the fixed clamping plate 331 and the bottom plate 311 of the slide 31 are made as one piece, the intermediate member 39 can also be regarded as being connected to the slide.

[0123] The actuating cylinder 50 of the knife moving mechanism 100 of this embodiment is connected to the frame 10 in a deflectable manner and is used to push and pull the moving unit 30 to drive the knife sleeve 203 to Figure 4 The standby position P1 shown is Figure 9 Move back and forth between the clipping knife position P2 shown. Figures 2 to 4The actuating cylinder 50 includes a cylinder body 52 and a push-pull rod 54, wherein the rear end 52a of the cylinder body 52 is pivotally connected to the frame 10, and a portion of the push-pull rod 54 extends into the cylinder body 52 from the front end 52b of the cylinder body 52. The push-pull rod 54 can withstand the changes in the internal force of the cylinder body 52 and move forward and backward. The changes in the aforementioned force are such as changes in air pressure or oil pressure. The end of the push-pull rod 54 exposed outside the cylinder 52 is pivotally connected to the rocker arm 37 via a shaft 56. In this embodiment, the push-pull rod 54 and the rocker arm 37 are pivotally connected between the pivot shaft 38 and the elongated slot 37a. Combined with the design of the elongated slot 37a in the rocker arm 37, when the push-pull rod 54 is controlled to extend or retract relative to the cylinder 52, the rocker arm 37 can drive the slide 31 to slide along the first straight segment 24, the curved segment 22, and the second straight segment 26 of the track 20, causing the tool holder 203 to be first translated and pushed out, then make a 90-degree turn, and then translate a certain distance. Simultaneously, the cylinder 52 can be deflected in a timely manner to facilitate smoother sliding of the slide 31. Conversely, if the track 20 only has the curved segment 22 and no straight segments, the rocker arm 37 does not need to be provided with the elongated slot 37a and can simply drive the slide 31 to slide within the curved segment 22.

[0124] In addition, in order to ensure that the knife sleeve 203 can stay in the standby position P1 and / or the knife locking position P2, this embodiment chooses to set a stopper on the frame 10, such as Figure 2 and Figure 4 As shown, a baffle 11 is fixed to one side of the frame 10, and a baffle 12 is locked to the middle part of the baffle 11. When the outer side of the movable clamping plate 332 abuts against the head of the bolt 12, it means that the knife sleeve 203 stops at the knife locking position P2 ( Figure 9 Reference); A support seat 13 is further connected to one side of the baffle 11. The support seat 13 has an arc-shaped surface for the knife rod 204 to abut against a portion of its circumference. In addition, a column 14 is further provided on one side of the frame 10. The column 14 is locked with a bolt 15 constituting a stopper defined in the present invention. When the knife sleeve 203 moves from the knife-locking position P2 to the standby position P1 ( Figure 4When the guide rod 34 of the movable unit 30 is pulled, one end of the locking nut 41 of the bolt 15 first abuts the head of the bolt 15, preventing the movable clamp 332 from moving further. However, the slide 31 is still being pulled back by the actuating cylinder 50 and moves a short distance. This short distance increases the distance between the fixed clamp 331 and the movable clamp 332, thereby releasing the knife sleeve 203. The released knife sleeve 203 is simultaneously engaged with the chain 202 and driven by the chain 202 to move around. Since the engagement or separation relationship between the knife sleeve 203 and the chain 202 is not the focus of the present invention, it will not be described in detail here. In addition, by adjusting the depth of the bolt 15 locked into the column 14, the timing of the guide rod 34 abutting the head of the bolt 15 can be changed, thereby simultaneously affecting the timing of releasing the knife sleeve 203. Of course, if the function of adjusting the timing of releasing the knife sleeve 203 is not considered, the column 14 can be used as a stopper, and the bolt 15 is not required.

[0125] The above is the composition and operation description of the knife moving mechanism 100 of the first preferred embodiment of the present invention. Figures 10 to 12 As shown, the knife-moving mechanism 100A of the second preferred embodiment of the present invention has a frame 10A, a track 20A, a movable unit 30A and an actuating cylinder 50A similar to those of the first embodiment described above, except that the intermediate component 43 in the movable unit 30A is directly arranged on the top side of the fixed splint 44, and the rocker arm 45 of the movable unit 30A is divided into a first arm segment and a second arm segment by a pivot 46. In this embodiment, the rocker arm 45 is composed of a shaft tube 451 with a pivot 46 and an upper arm 452 and a lower arm 453 are connected to the top and bottom ends of the shaft tube 451 respectively. The lower arm 453 constitutes the first arm segment defined in the present invention and has a long slot hole 454. The intermediate component 43 is located in the long slot hole 454, and the upper arm 452 constitutes the second arm segment defined in the present invention. The actuating cylinder 50A is pivoted between the two clamping plates 58 by the shaft 57a at the front end of the cylinder body 57 so as to be able to deflect. One end of the push-pull rod 59 of the actuating cylinder 50A is pivoted to the free end of the upper arm 452. Therefore, when the push-pull rod 59 is controlled to extend or retract relative to the cylinder body 57, the rocker arm 45 drives the slide 47 to move along the track 20A, so as to achieve the purpose of driving the tool sleeve to and fro between the two positions and synchronously changing the swing direction.

[0126] Based on the fact that the track 20A of this embodiment is also connected to perpendicularly intersecting straight sections at both ends of the arc section, and the pivot 46 is located between the two active ends (i.e., the position where the push-pull rod 59 is pivotally connected to the upper arm 452 and the position where the intermediate member 43 is located), the long slot hole 454 is composed of a straight section 454a and two turning sections 454b. The two turning sections 454b are respectively connected to the two ends of the straight section 454a and extend at an angle relative to the straight section 454a, thereby ensuring that the slide 47 can move smoothly on the track 20A.

[0127] The actuating cylinder 50 (50A) of each of the above embodiments is connected to the frame 10 (10A) in a manner that allows it to deflect. However, in other embodiments, when the actuating cylinder is fixed to the frame and does not deflect, the same actions and purposes of the above embodiments can also be achieved, such as Figure 13 The knife-moving mechanism 100B of the third preferred embodiment of the present invention shown is an example. The knife-moving mechanism 100B has a frame 10B, a track 20B, a moving unit 30B and an actuating cylinder 50B having structural features similar to those of the above-mentioned embodiments. The differences between this embodiment and the above-mentioned embodiments are described below.

[0128] Please cooperate Figures 14 to 16 As shown, the intermediate member 60 in the mobile unit 30B of this embodiment is connected to the bottom plate 61a of the slide 61, and the pivot 62 is maintained in a rotatable manner through the frame 10B. The upper half of the pivot 62 is located outside the frame 10B, and the lower half of the pivot 62 is located inside the frame 10B and has a ring tooth portion 62a surrounding the circumference. One end of the rocker arm 63 has a long slot 63a, and the intermediate member 60 is located in the long slot 63a. The other end of the rocker arm 63 is connected to the pivot 62. In this embodiment, the rocker arm 63 and the pivot 62 are connected through a bundle block 64. The bundle block 64 has an axial hole 64a. The upper half of the pivot 62 passes through the axial hole 64a. The axial hole 64a is distributed around a plurality of screw holes 64b. The rocker arm 63 is passed through the rocker arm 63 by a plurality of bolts 65. The through-hole 63b on the bracket 64 is locked into the corresponding screw hole 64b of the bracket 64, thereby achieving the purpose of fixing the bracket 64 to the pivot 62. The bracket 64 also has a slot 64c and two locking holes 64d. The slot 64c connects the shaft hole 64a with the outside world, and the locking holes 64d are locked by bolts 66. By adjusting the depth of the bolts 66 locked into the locking holes 64d, the width of the slot 64c can be changed, so that the bracket 64 can clamp or loosen the pivot 62 with the wall of the shaft hole 64a. When the bracket 64 clamps the pivot 62, the rocker arm 63 can be driven to swing by the rotating pivot 62. When the bracket 64 is released from the pivot 62, the bracket 64 can be adjusted and rotated relative to the pivot 62, further changing the swing angle of the rocker arm 63. When the bracket 64 clamps the pivot 62 again, the rocker arm 63 can drive the slide 61 to move smoothly along the track 20B.

[0129] The arrangement of the above-mentioned bundle block 64 is to make the component installation more flexible. However, when the configuration relationship between the swing angle of the rocker arm 63 and the smooth movement of the slide 61 is precisely calculated, the bundle block 64 can be omitted and the rocker arm 63 can be directly fixed to the pivot 62.

[0130] The actuating cylinder 50B of the knife-moving mechanism 100B includes a cylinder body 67 and a push-pull rod 68. The cylinder body 67 is fixed to the frame 10B and cannot be deflected. The push-pull rod 68 also moves back and forth under the change of the internal force of the cylinder body 67. The push-pull rod 68 of this embodiment drives the pivot 62 to rotate through a meshing transmission. More specifically, one end of the push-pull rod 68 passes through the frame 10B and is connected to a row of teeth 69. The row of teeth 69 synchronously makes linear displacement with the back and forth movement of the push-pull rod 68. The row of teeth 69 and the ring tooth portion 62a on the pivot 62 are linked through a small gear 70. Accordingly, the pivot 62 can be indirectly driven without the actuating cylinder 50B deflecting, and the slide 61 is driven to move along the track 20B through the rocker arm 63, so as to achieve the purpose of driving the tool sleeve 203 to move between the standby position P1 and the tool-locking position P2. It should be noted that the pinion 70 is used to change the direction of force transmission. If the row of teeth 69 directly engages the ring gear portion 62a on the pivot 62 and the rotation direction of the pivot 62 is as expected, the pinion 70 can be omitted. For example, the row of teeth 69 can be installed on the right side of the pivot 62 instead of the left side. In addition, a stabilizing member 71 can be optionally installed on one side of the row of teeth 69 to ensure that the row of teeth 69 can move linearly. The stabilizing member 71 includes but is not limited to the wheel body of this embodiment.

[0131] Please cooperate again Figure 17 As shown, the knife transport mechanism 100B of this embodiment further includes a support unit for supporting the knife sleeve 203, so that the knife sleeve 203 can move more stably between the standby position P1 and the knife-engaging position P2. The support unit of this embodiment includes an upper support plate 72 and a lower support plate 73 arranged in parallel. The aforementioned support plates are arc-shaped plates and are arranged on the outside of the track 20B. One side of the upper support plate 72 is fixed to the column 75 through the connecting plate 74, and the other side of the support plate 72 is directly fixed to the baffle 76, so that the upper support plate 72 is suspended in the air. The lower support plate 73 is directly fixed to the frame 10B. The surface of the upper support plate 72 and the lower support plate 73 facing each other constitutes a support surface. When the knife sleeve 203 is driven by the moving unit 30B to leave the standby position P1 and enter the space between the upper support plate 72 and the lower support plate 73, the outer peripheral surface of the knife sleeve 203 contacts the aforementioned support surface to achieve a stable support effect. The aforementioned support unit includes an upper support plate 72 and a lower support plate 73. However, depending on actual needs, only the lower support plate can be provided to support the bottom of the tool holder 203. Similarly, the support unit is also applicable to the structures of the first and second embodiments described above. It should be noted that the support unit is optional and can be provided or not provided if the tool holder can stably hold the tool holder 203.

[0132] From the above, it can be seen that the knife-moving mechanism of the present invention can provide the market with more diverse choices and applications. The above description is only a preferred embodiment of the present invention. Any equivalent changes made by applying the present invention's description and claims should be included in the patent scope of the present invention.

Claims

1. A tool transport mechanism for a chain-type tool magazine is used to move a tool sleeve of the chain-type tool magazine between two positions, characterized in that: include: One rack; a track disposed on the frame and having an arc-shaped section; The track has a first straight segment and a second straight segment, the first straight segment and the second straight segment respectively connect two ends of the arc segment, and the extension directions of the first straight segment and the second straight segment are perpendicular to each other; A movable unit includes a slide and a tool holder, wherein the slide is movably coupled to the rail, and the tool holder includes a fixed clamping plate and a movable clamping plate, wherein the fixed clamping plate is fixedly coupled to the slide, and the movable clamping plate is movable relative to the fixed clamping plate to move toward or away from the fixed clamping plate so that the movable clamping plate and the fixed clamping plate clamp or release the tool holder; wherein the movable unit includes a rocker arm, a pivot, and an intermediate member, wherein the rocker arm is pivotally coupled to the frame via the pivot, the rocker arm has an elongated slot, and the intermediate member is connected to the fixed clamping plate or the slide and is located in the elongated slot; An actuating cylinder is provided with a push-pull rod capable of bearing an action force and moving forward and backward. When the push-pull rod moves forward and backward, it can drive the slide to move along the arc section of the track.

2. The tool transport mechanism of the chain-type tool magazine according to claim 1, characterized in that: The actuating cylinder is connected to the frame in a deflectable manner. One end of the push-pull rod is pivotally connected to the rocker arm, and the pivoting portion is between the pivot and the long slot.

3. The tool transport mechanism of the chain-type tool magazine according to claim 2, characterized in that: The fixing splint has a cutout, and the intermediate piece is located in the cutout.

4. The tool transport mechanism of the chain-type tool magazine according to claim 1, characterized in that: The actuating cylinder is connected to the frame in a deflectable manner. The rocker arm is divided into a first arm section and a second arm section with the pivot as the boundary. The first arm section has the long slot hole. One end of the push-pull rod is pivotally connected to the second arm section.

5. The tool transport mechanism of the chain-type tool magazine according to claim 4, characterized in that: The long slot has a straight section and two turning sections, and the two turning sections respectively connect two ends of the straight section in an angled manner.

6. The tool transport mechanism of the chain-type tool magazine according to claim 1, characterized in that: The rocker arm is connected to the pivot, the actuating cylinder is fixed to the frame, and the push-pull rod drives the pivot to rotate through a meshing transmission mode.

7. The tool transport mechanism of the chain-type tool magazine according to claim 6, characterized in that: The moving unit includes a row of teeth connected to the push-pull rod. The pivot has a ring tooth portion. The row of teeth can directly or indirectly engage with the ring tooth portion.

8. The tool transport mechanism of the chain-type tool magazine according to claim 6, characterized in that: The moving unit comprises a set of beam blocks arranged outside the pivot, the beam blocks are fixedly connected to the pivot in a manner of being adjustable and rotatable relative to the pivot, and the rocker arm is fixedly connected to the beam blocks.

9. The tool transport mechanism of the chain-type tool magazine according to any one of claims 1 to 8, characterized in that: A support unit is included. The support unit has at least one support surface. When the knife sleeve moves between two positions, the knife sleeve contacts the support surface.

10. The tool transport mechanism of the chain-type tool magazine according to claim 9, characterized in that: The supporting unit comprises an upper supporting plate and a lower supporting plate which are arranged in parallel. The upper supporting plate and the lower supporting plate have the supporting surface on their facing sides.

11. The tool transport mechanism of the chain-type tool magazine according to any one of claims 1 to 8, characterized in that: The movable unit includes at least one guide rod and at least one spring. The guide rod passes through the fixed clamping plate and one end is fixed to the movable clamping plate. The other end of the guide rod forms a stopper. The spring is sleeved on the guide rod and its two ends act on the stopper and the fixed clamping plate respectively.

12. The tool transport mechanism of the chain-type tool magazine according to claim 11, characterized in that: The movable unit includes at least one limiting rod, one end of which is fixedly connected to the fixed clamping plate, and the other end of which passes through the movable clamping plate.

13. The tool transport mechanism of the chain-type tool magazine according to claim 11, characterized in that: At least one stopper is provided on the frame. When the push-pull rod of the actuating cylinder drives the slide to move to a predetermined position, the stopper abuts against one end of the guide rod having the stopper portion, or abuts against the movable clamping plate.

14. The tool transport mechanism of the chain-type tool magazine according to claim 1, characterized in that: At least one of the knife sleeve and the movable clamping plate has at least one positioning protrusion, and the other has a positioning recess. When the movable clamping plate and the fixed clamping plate clamp the knife sleeve, the positioning protrusion cooperates with the positioning recess.

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