Knife handle positioning device capable of rapidly changing knife

Abstract

The invention discloses a cutter handle positioning device capable of rapidly changing a cutter, and relates to the field of machine tool equipment. The cutter handle positioning device capable of rapidly changing the cutter comprises a base, a positioning groove formed in the base, a plurality of clamping petals which can be oppositely opened or closed and are arranged in the positioning groove, an execution assembly used for driving the multiple clamping petals to be oppositely opened, and an auxiliary assembly used for assisting in driving the multiple clamping petals to be oppositely closed. The auxiliary assembly comprises a driving ring annularly arranged on the circumferential sides of the multiple clamping petals, the driving ring is movably arranged in the axial direction of the positioning groove, a first driving groove is annularly formed in the side portion of the inner circumference of the driving ring, a matching part is arranged on the outer side portion of each clamping petal, and the multiple matching parts are all contained in the first driving groove. According to the cutter handle positioning device, the multiple clamping petals on the cutter handle positioning device can be rapidly folded under the relative action of the driving ring and the matching part, so that the cutter handle can be rapidly replaced without waiting for autonomous recovery of the multiple clamping petals, and the cutter replacing efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of machine tool equipment, and in particular to a tool holder positioning device capable of quickly changing tools. Background Art

[0002] A tool holder positioner is a positioning device used to clamp a tool holder. It is installed on a machine tool to clamp the tool holder, and a tool or workpiece can be installed on the tool holder to complete machining.

[0003] In the prior art, the clamping of the tool handle is generally achieved through multiple clamping petals. The lower end of the tool handle has an assembly opening, which can be sleeved on the peripheral side of the multiple clamping petals. When clamping, a driving head approaches and squeezes the multiple clamping petals, so that the multiple clamping petals are relatively opened and pressed against the inner peripheral side of the assembly opening, thereby clamping the tool handle; when unlocking, the driving head is away from the multiple clamping petals, and the multiple clamping petals are relatively closed under the action of their own deformation restoring force, so that the tool handle loses the squeezing and is unlocked, and the tool handle can be taken out at this time.

[0004] However, since the deformation recovery force of the clamping flap is weak, it takes a long time for it to recover autonomously, and the tool handle needs to wait for the clamping flap to recover before it can be unlocked, which greatly reduces the efficiency of replacing the tool handle. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, the present application provides a tool holder positioning device capable of quickly changing tools.

[0006] The present application provides a tool handle positioning device that adopts the following technical solution: A tool holder positioning device capable of rapid tool change comprises a base, a positioning groove provided on the base, a plurality of clamping petals provided in the positioning groove and capable of being relatively opened or retracted, and an actuator component for driving the plurality of clamping petals to be relatively opened. The tool holder positioning device also comprises an auxiliary component for assisting in driving the plurality of clamping petals to be relatively retracted, the auxiliary component comprising a driving ring arranged around the plurality of clamping petals, the driving ring being movably arranged along the axial direction of the positioning groove, a first driving groove being circumferentially provided on the inner circumferential side portion of the driving ring, a mating portion being respectively provided on the outer side portion of each of the clamping petals, and a plurality of the mating portions being accommodated in the first driving groove.

[0007] By adopting the above technical solution, the multiple clamping petals can be quickly retracted under the relative action of the drive ring and the matching part, so that the tool handle can be quickly replaced without waiting for the multiple clamping petals to recover autonomously, which greatly improves the tool changing efficiency.

[0008] Preferably, a support seat is coaxially connected in the positioning groove, a first elastic member is provided on the support seat, and the drive ring is suspended on the support seat and connected to the first elastic member.

[0009] By adopting the above technical solution, the multiple clamping petals can squeeze the first elastic member when they are relatively opened, so that the first elastic member can have sufficient resilience, so that the drive ring can quickly push the mating part under the action of the first elastic member and realize the rapid retraction of the multiple clamping petals, thereby further improving the tool changing efficiency.

[0010] Preferably, the support seat has a mounting portion at one end close to the clamping flap, the first elastic member is annular and surrounds the circumference of the mounting portion, and the drive ring is suspended on the mounting portion and coaxially connected to the first elastic member.

[0011] By adopting the above technical solution, the first elastic member can be extended and retracted along the axial direction of the mounting portion, thereby preventing the drive ring from being offset during movement and affecting its auxiliary retraction effect on the multiple clamping petals.

[0012] Preferably, a slide groove is coaxially opened in the support seat, and the actuator includes a first drive seat slidably arranged in the slide groove, a first drive shaft arranged on the first drive seat, and a first drive head arranged at the end of the first drive shaft, the first drive shaft is passed through the multiple clamping petals, the first drive head can slide along the direction from the clamping petals to the support seat and open the multiple clamping petals, or slide along the direction from the support seat to the clamping petals and disengage from the multiple clamping petals, and the first elastic member is connected to an end of the drive ring away from the first drive head.

[0013] By adopting the above-mentioned technical solution, the first driving head can gradually push the multiple clamping petals outward when approaching the clamping petals, so as to achieve the locking of the tool handle by the multiple clamping petals and the compression of the first elastic member; and when the first driving head is away from the clamping petals, the first elastic member can quickly recover and push the driving ring, and the driving ring pushes the clamping petals, so that the multiple clamping petals are quickly retracted and the tool handle is unlocked.

[0014] Preferably, the positioning groove includes a first groove body and a second groove body respectively located at both ends of the support seat, and the multiple clamping petals are arranged in the first groove body. The actuator also includes a second drive seat slidably arranged in the second groove body and a second drive shaft arranged on the second drive seat. The first drive seat is provided with a second drive groove, and the second drive shaft can be inserted into or detached from the second drive groove.

[0015] By adopting the above technical solution, the second drive shaft can gradually drive the first drive seat during the process of inserting into or disengaging from the second drive groove, so that the first drive head can more smoothly squeeze or disengage from multiple clamping petals, preventing the first drive head from causing damage to the clamping petals; at the same time, the second drive seat can be started in advance before the end of processing and gradually push the first drive seat, further improving the efficiency of disassembly and assembly of the tool handle.

[0016] Preferably, a plurality of limit openings are opened on the groove wall of the second driving groove around its own circumference, and a movable limit block is respectively arranged in each of the limit openings. The plurality of limit blocks can pass through the limit openings and abut against the peripheral side of the second driving shaft.

[0017] By adopting the above technical solution, the second drive shaft can be positioned in the second drive groove under the action of a plurality of limit blocks, thereby effectively improving the driving effect of the second drive shaft on the first drive seat.

[0018] Preferably, a second driving head is provided at the end of the second driving shaft, and the diameter of the second driving head gradually increases along the direction from the second driving seat to the first driving seat. The side of the limit block close to the second driving head has a first mating surface, and the first mating surface is a slope. The multiple first mating surfaces are respectively slidably attached to the peripheral side of the second driving head.

[0019] By adopting the above-mentioned technical scheme, the multiple limit blocks can be gradually retracted during the process of inserting the second drive head into the second drive groove, and the relatively retracted multiple limit blocks can gradually press against the peripheral side of the second drive head to achieve the limitation of the second drive head; at the same time, the second drive head can gradually squeeze the multiple limit blocks in the process of disengaging from the second drive groove, so that the multiple limit blocks are relatively opened, and the relatively opened multiple limit blocks can reversely squeeze the first drive seat, thereby driving the first drive head to quickly squeeze the multiple clamping petals, thereby improving the opening efficiency of the multiple clamping petals.

[0020] Preferably, a limiting portion is further arranged between the second drive shaft and the second drive head, and the diameter of the limiting portion gradually increases along the direction from the second drive shaft to the second drive head. The side of the limiting block close to the second drive head also has a limiting surface, and the limiting surface is an inclined surface. The first mating surface and the limiting surface are arranged along the direction from the second drive seat to the first drive seat, and the plurality of limiting surfaces can be supported on the circumferential side of the limiting portion respectively.

[0021] By adopting the above-mentioned technical scheme, the second drive head can be positioned in the second drive groove with the cooperation of the limiting portion and the limiting surface, thereby effectively improving the driving effect of the second drive shaft on the first drive seat; and in the process of the second drive head disengaging from the second drive groove, the limiting portion can squeeze the limiting surface and push the limiting block, so that multiple limiting blocks squeeze the first drive seat, thereby driving the first drive head to quickly squeeze multiple clamping petals, thereby improving the opening efficiency of multiple clamping petals.

[0022] Preferably, the slide groove has a notch portion at one end close to the second drive seat, and the diameter of the notch portion gradually increases along the direction from the first drive seat to the second drive seat. The side of the limit block away from the second drive head is provided with a second mating surface, and the second mating surface is an inclined surface. The plurality of second mating surfaces can be slidably attached to the inner wall of the notch portion.

[0023] By adopting the above technical solution, the limiting block can move along the inner wall of the notch portion with the cooperation of the second matching surface, so as to limit the second drive head or push the first drive seat during the movement.

[0024] Preferably, the second trough body includes a trough body a and a trough body b respectively located at two ends of the second driving seat, the base is provided with a first gas channel connected to the trough body a, and a second gas channel connected to the trough body b, a second elastic member is also arranged in the trough body b, and two ends of the second elastic member are respectively connected to the support seat and the second driving seat.

[0025] By adopting the above-mentioned technical solution, the second drive seat can slide under the cooperation of the first gas channel, the second gas channel and the second elastic member. The cooperation between the three can realize the rapid opening or closing of multiple clamping petals, thereby realizing the rapid locking and unlocking of the knife handle; at the same time, the cooperation between the second gas channel and the second elastic member can effectively improve the locking strength of the knife handle.

[0026] In summary, the present invention includes at least one of the following beneficial technical effects: The multiple clamping petals can be quickly retracted under the relative action of the drive ring and the matching part, so that the tool handle can be quickly replaced without waiting for the multiple clamping petals to recover autonomously, which greatly improves the tool changing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the three-dimensional structure of the tool handle positioning device in the embodiment of the present application; Figure 2 is a front view of a tool handle positioning device in an embodiment of the present application; Figure 3 yes Figure 2 AA section diagram in; Figure 4 is a side view of a tool handle positioning device in an embodiment of the present application; Figure 5 yes Figure 4 BB cross-section diagram in; Figure 6 yes Figure 4 Schematic diagram of CC cross section in .

[0028] Markings in the accompanying drawings: 1. Base; 2. Positioning groove; 21. First slot body; 22. Second slot body; 221. Slot body a; 222. Slot body b; 3. Clamping flap; 31. Matching portion; 32. Clamping portion; 4. Actuator; 41. First drive seat; 42. First drive shaft; 43. First drive head; 431. Drive portion; 432. Holder; 44. Second drive seat; 45. Second drive shaft; 46. Second drive slot; 47. Limiting opening; 48. Second drive head; 49. Limiting portion; 5. Auxiliary component; 51. Driving ring; 52. First driving groove; 53. First elastic member; 6. Support seat; 61. Mounting portion; 62. Slide groove; 63. Notch portion; 7. Limit block; 71. First mating surface; 72. Limit surface; 73. Second mating surface; 8. First gas channel; 9. Second gas channel; 10. Second elastic member; 11. First air inlet; 12. Second air inlet; 13. Support seat; 131. Support surface; 14. Detection hole; 15. Third gas channel; 16. Detection port; 17. Fourth gas channel; 18. Cleaning port; 100. Knife handle; 101. Assembly opening. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 The present invention is described in further detail.

[0030] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] See also Figure 1-6As shown, there is shown a tool holder positioning device capable of rapid tool change, comprising a base 1, a positioning slot 2 provided on the base 1, a plurality of clamping flaps 3 which can be relatively opened or retracted and are arranged in the positioning slot 2, an actuator component 4 for driving the plurality of clamping flaps 3 to relatively open, and an auxiliary component 5 for assisting in driving the plurality of clamping flaps 3 to relatively retract.

[0032] Among them, the positioning groove 2 is used to install the tool handle 100. The tool handle 100 is the handle part of the tool. It can not only fix the workpiece through the adapter plate, but also can be directly connected to the tool. There is an assembly port 101 at the lower end of the tool handle 100. When inserted, the assembly port 101 is sleeved on the outer peripheral part of the multiple clamping petals 3; the multiple clamping petals 3 are arranged circumferentially around the positioning groove 2, and the multiple clamping petals 3 have a certain deformation ability. They can be relatively opened and pressed against the inner peripheral side of the assembly port 101 under the action of the actuator 4 to achieve clamping of the tool handle 100; and after the actuator 4 cancels the drive of the multiple clamping petals 3, the multiple clamping petals 3 are relatively retracted and disengaged from the inner wall of the assembly port 101 with the cooperation of the auxiliary component 5, thereby achieving unlocking of the tool handle 100.

[0033] In this embodiment, combined with Figure 3 As shown, the auxiliary component 5 includes a driving ring 51 arranged around the sides of the multiple clamping petals 3, and the driving ring 51 is coaxially arranged with the positioning groove 2, and is movably arranged along the axial direction of the positioning groove 2. A first driving groove 52 is circumferentially provided on the inner circumferential side of the driving ring 51, and a matching portion 31 is respectively provided on the outer side of each clamping petal 3, and the multiple matching portions 31 are all accommodated in the first driving groove 52. In this way, the multiple clamping petals 3 can be quickly retracted under the relative action of the driving ring 51 and the matching portion 31, so that the tool handle 100 can be quickly replaced without waiting for the multiple clamping petals 3 to recover autonomously, which greatly improves the tool changing efficiency.

[0034] Specifically, the matching portion 31 is arranged at one end of the clamping petal 3, and the clamping portion 32 is arranged on the outer side of the other end of the clamping petal 3. When the driving ring 51 moves along the direction from the matching portion 31 to the clamping portion 32, it can push the matching portion 31, and the matching portion 31 can drive the clamping portion 32 to collapse after being pressed; and when the actuator 4 drives the multiple clamping portions 32 to open relatively, the matching portion 31 is driven by the clamping portion 32 to squeeze the driving ring 51, so that the driving ring 51 is reset along the direction from the clamping portion 32 to the matching portion 31.

[0035] In this embodiment, a support seat 6 is coaxially connected in the positioning groove 2, and a first elastic member 53 is arranged on the support seat 6. The support seat 6 has a mounting portion 61 at one end close to the clamping petal 3. The first elastic member 53 is a wave spring, which is annular and surrounds the circumference of the mounting portion 61. The drive ring 51 is suspended on the mounting portion 61 and is coaxially connected to the first elastic member 53. When the multiple clamping petals 3 are relatively opened, the first elastic member 53 can be squeezed through the interaction between the matching portion 31 and the drive ring 51, so that the first elastic member 53 can accumulate sufficient resilience, so that when the multiple clamping petals 3 are retracted, the first elastic member 53 can quickly recover and drive the drive ring 51 to move. The drive ring 51 can quickly push the matching portion 31 under the action of the resilience of the first elastic member 53 to assist the multiple clamping petals 3 to achieve rapid retraction, further improving the tool changing efficiency.

[0036] In this embodiment, a slide groove 62 is coaxially opened in the support seat 6, and the actuator 4 includes a first drive seat 41 slidably arranged in the slide groove 62, a first drive shaft 42 arranged on the first drive seat 41, and a first drive head 43 arranged at the end of the first drive shaft 42. The first drive shaft 42 is passed through a plurality of clamping petals 3, and the first drive head 43 can slide along the direction from the clamping petals 3 to the support seat 6 and open the plurality of clamping petals 3, or slide along the direction from the support seat 6 to the clamping petals 3 and disengage from the plurality of clamping petals 3. The first elastic member 53 is connected to an end of the drive ring 51 away from the first drive head 43.

[0037] When the first driving head 43 approaches the clamping petals 3, it can gradually push the multiple clamping petals 3 outward to achieve the locking of the tool handle 100 by the multiple clamping petals 3 and the compression of the first elastic member 53; and when the first driving head 43 is away from the clamping petals 3, the first elastic member 53 can quickly recover and push the driving ring 51, and the driving ring 51 pushes the clamping petals 3, so that the multiple clamping petals 3 are quickly retracted to achieve the rapid unlocking of the tool handle 100.

[0038] The first driving head 43 includes a driving portion 431 and a retaining portion 432 arranged in a direction away from the clamping petal 3, the diameter of the driving portion 431 gradually increases from the clamping petal 3 to the retaining portion 432, and the diameter of the retaining portion 432 is the same as the maximum diameter of the driving portion 431. The driving portion 431 with a gradually increasing diameter can more smoothly open the multiple clamping portions 32; and the retaining portion 432 can continue to press against the multiple clamping portions 32 after the driving portion 431 moves into position, so that the multiple clamping portions 32 remain in an open state, thereby improving the clamping effect of the multiple clamping portions 32 on the tool handle 100.

[0039] In this embodiment, the positioning groove 2 includes a first groove body 21 and a second groove body 22 respectively located at both ends of the support seat 6, a plurality of clamping petals 3 are arranged in the first groove body 21, and the actuator 4 also includes a second drive seat 44 slidably arranged in the second groove body 22, and a second drive shaft 45 arranged on the second drive seat 44. A second drive groove 46 is provided on the first drive seat 41, and the second drive shaft 45 can be inserted into the second drive groove 46 or disengaged from the second drive groove 46. The second drive shaft 45 can gradually drive the first drive seat 41 in the process of inserting into or disengaging from the second drive groove 46, so that the first drive head 43 can more smoothly squeeze or disengage from the plurality of clamping petals 3, preventing the first drive head 43 from causing damage to the clamping petals 3; at the same time, the second drive seat 44 can start in advance before the end of processing and gradually push the first drive seat 41, further improving the disassembly and assembly efficiency of the tool handle 100.

[0040] In this embodiment, a plurality of limit openings 47 are opened on the groove wall of the second driving groove 46 around its own circumference, and a movable limit block 7 is respectively arranged in each limit opening 47. The plurality of limit blocks 7 are wedge-shaped blocks, which can pass through the limit opening 47 and abut against the peripheral side of the second driving shaft 45.

[0041] A second driving head 48 is provided at the end of the second driving shaft 45, and the diameter of the second driving head 48 gradually increases along the direction from the second driving seat 44 to the first driving seat 41. The side of the limit block 7 close to the second driving head 48 has a first mating surface 71, and the first mating surface 71 is an inclined surface. Multiple first mating surfaces 71 are slidably attached to the peripheral side of the second driving head 48.

[0042] During the process of the second driving head 48 being inserted into the second driving groove 46, the multiple limit blocks 7 can be gradually retracted along the circumferential side inclined surface of the second driving head 48, and the relatively retracted multiple limit blocks 7 can be gradually pressed against the circumferential side of the second driving head 48 to achieve the limitation of the second driving head 48; at the same time, during the process of the second driving head 48 being disengaged from the second driving groove 46, it can gradually squeeze the multiple limit blocks 7 through its circumferential side inclined surface, so that the multiple limit blocks 7 are relatively opened, and the relatively opened multiple limit blocks 7 can reversely squeeze the first driving seat 41, and the first driving seat 41 drives the first driving head 43 to quickly squeeze the multiple clamping petals 3, thereby improving the opening efficiency of the multiple clamping petals 3.

[0043] In this embodiment, a limiting portion 49 is further provided between the second drive shaft 45 and the second drive head 48, and the diameter of the limiting portion 49 gradually increases along the direction from the second drive shaft 45 to the second drive head 48, wherein the maximum diameter of the limiting portion 49 is the same as the minimum diameter of the second drive head 48. The limiting block 7 also has a limiting surface 72 on one side close to the second drive head 48, and the limiting surface 72 is an inclined surface, and the first matching surface 71 and the limiting surface 72 are arranged along the direction from the second drive seat 44 to the first drive seat 41, and the plurality of limiting surfaces 72 can be supported on the peripheral side of the limiting portion 49 respectively. After the second drive head 48 is inserted into the second drive groove 46 and moved into position, it can be positioned in the second drive groove 46 with the cooperation of the limiting portion 49 and the limiting surface 72, effectively improving the driving effect of the second drive shaft 45 on the first drive seat 41; and in the process of the second drive head 48 disengaging from the second drive groove 46, the limiting portion 49 can assist in squeezing the limiting surface 72 and push the limiting block 7, so that the multiple limiting blocks 7 are gradually opened and squeeze the first drive seat 41, thereby driving the first drive head 43 to quickly squeeze the multiple clamping petals 3, thereby improving the opening efficiency of the multiple clamping petals 3.

[0044] In this embodiment, the end of the slide groove 62 close to the second drive seat 44 has a notch portion 63, the diameter of the notch portion 63 gradually increases along the direction from the first drive seat 41 to the second drive seat 44, and the side of the limit block 7 away from the second drive head 48 is provided with a second matching surface 73, the second matching surface 73 is an inclined surface, and a plurality of second matching surfaces 73 are slidably attached to the inner wall of the notch portion 63. The limit block 7 can move along the inner wall of the notch portion 63 with the cooperation of the second matching surface 73, so that it can limit the second drive head 48 or push the first drive seat 41 during the movement.

[0045] In this embodiment, combined with Figure 3 and Figure 5As shown, the second slot body 22 includes a slot body a221 and a slot body b222 respectively located at the two ends of the second drive seat 44, and a first gas channel 8 connected to the slot body a221 and a second gas channel 9 connected to the slot body b222 are provided on the base 1. A second elastic member 10 is also provided in the slot body b222, and the two ends of the second elastic member 10 are respectively connected to the support seat 6 and the second drive seat 44. A first air inlet 11 connected to the first gas channel 8 and a second air inlet 12 connected to the second gas channel 9 are respectively provided at the bottom end of the base 1. Among them, the second elastic member 10 is a plurality of springs arranged at intervals around the circumference of the positioning groove 2, and the first gas channel 8 and the second gas channel 9 are used to pass compressed air. The second drive seat 44 can slide under the cooperation of the first gas channel 8, the second gas channel 9 and the second elastic member 10. The cooperation of the three can realize the rapid opening or closing of multiple clamping petals 3, thereby realizing the rapid locking and unlocking of the knife handle 100; at the same time, the second gas channel 9 and the second elastic member 10 cooperate to effectively improve the locking strength of the knife handle 100.

[0046] In this embodiment, combined with Figure 5 As shown, the slot of the positioning groove 2 is also plugged with a bearing seat 13 for bearing the knife handle 100, the bearing seat 13 has a bearing surface 131, the bearing surface 131 is provided with a detection hole 14, and the base 1 is also provided with a third gas channel 15 connected with the detection hole 14, and the end of the third gas channel 15 away from the detection hole 14 has a detection port 16. When the knife handle 100 is inserted into the bearing seat 13, if the knife handle 100 has been clamped, its peripheral side can be pressed against the bearing surface 131 and cover the detection hole 14. If the knife handle 100 is not clamped, there will inevitably be a gap between it and the bearing surface 131, and the peripheral side of the knife handle 100 cannot completely cover the detection hole 14. In this way, it is only necessary to connect a gas flow sensor to the detection port 16 to effectively detect the clamping state of the knife handle 100 and adjust it through the gas flow in the third gas channel 15, so as to avoid affecting the use of the knife handle 100 due to unreliable fixation.

[0047] In this embodiment, combined with Figure 6 As shown, the base 1 is provided with a plurality of fourth gas channels 17, which are connected to the first tank body 21. A cleaning port 18 connected to the plurality of fourth gas channels 17 is provided at the bottom end of the base 1. The plurality of fourth gas channels 17 are used to introduce compressed air into the first tank body 21 to clean up the debris dropped into the first tank body 21.

[0048] The implementation principle of the tool handle positioning device in the embodiment of the present application is: When disassembling the knife handle 100, compressed air is input into the first gas channel 8 through the first air inlet 11, and the compressed air enters the groove body a221 through the first gas channel 8 and pushes the second drive seat 44 to slide in the direction close to the first drive seat 41. The second drive head 48 is gradually inserted into the second drive groove 46 and pushes the first drive seat 41 during the sliding process. The multiple limit blocks 7 are gradually retracted and abut against the second drive head 48. The first drive head 43 is separated from the multiple clamping petals 3 under the action of the thrust. The first elastic member 53 recovers after losing the extrusion force and pushes the drive ring 51. The drive ring 51 pushes the matching part 31 during its movement, and the matching part 31 drives the clamping part 32 to retract quickly, so that the knife handle 100 can be quickly unlocked. At this time, the knife handle 100 can be conveniently taken out of the positioning groove 2. When installing the knife handle 100, the knife handle 100 is inserted into the positioning groove 2, and then the first air inlet 11 is cut off, and compressed air is input into the second gas channel 9 through the second air inlet 12. The compressed air enters the groove body b222 through the second gas channel 9 and cooperates with the second elastic member 10 to push the second drive seat 44 to slide in the direction away from the first drive seat 41. The second drive head 48 squeezes multiple limit blocks 7 during the sliding process, and the multiple limit blocks 7 open relatively and squeeze the first drive seat 41. The first drive head 43 squeezes multiple clamping petals 3 under the drive of the limit blocks 7, and the multiple clamping petals 3 open relatively and lock the knife handle 100 under the squeezing action.

[0049] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tool holder positioning device capable of rapid tool change, comprising a base (1), a positioning groove (2) provided on the base (1), a plurality of clamping flaps (3) provided in the positioning groove (2) and capable of being relatively opened or retracted, and an actuator (4) for driving the plurality of clamping flaps (3) to relatively open, characterized in that: The tool handle positioning device also includes an auxiliary component (5) for assisting in driving the plurality of clamping flaps (3) to retract relative to each other, the auxiliary component (5) includes a driving ring (51) arranged around the plurality of clamping flaps (3), the driving ring (51) being movably arranged along the axial direction of the positioning groove (2), the inner circumferential side of the driving ring (51) being provided with a first driving groove (52) in an annular direction, the outer side of each of the clamping flaps (3) being provided with a matching portion (31), and the plurality of matching portions (31) being accommodated in the first driving groove (52).

2. A tool holder positioning device capable of rapid tool change according to claim 1, characterized in that: A support seat (6) is coaxially connected in the positioning groove (2), a first elastic member (53) is provided on the support seat (6), and the drive ring (51) is suspended on the support seat (6) and connected to the first elastic member (53).

3. A tool holder positioning device capable of rapid tool change according to claim 2, characterized in that: The support seat (6) has a mounting portion (61) at one end close to the clamping flap (3); the first elastic member (53) is annular and surrounds the circumference of the mounting portion (61); the drive ring (51) is suspended on the mounting portion (61) and is coaxially connected to the first elastic member (53).

4. A tool holder positioning device capable of rapid tool change according to claim 2, characterized in that: A slide groove (62) is coaxially provided in the support seat (6), and the actuator (4) includes a first drive seat (41) slidably arranged in the slide groove (62), a first drive shaft (42) arranged on the first drive seat (41), and a first drive head (43) arranged at the end of the first drive shaft (42), the first drive shaft (42) is passed through the multiple clamping flaps (3), the first drive head (43) can slide along the direction from the clamping flap (3) to the support seat (6) and open the multiple clamping flaps (3), or slide along the direction from the support seat (6) to the clamping flap (3) and disengage from the multiple clamping flaps (3), the first elastic member (53) is connected to an end of the drive ring (51) away from the first drive head (43).

5. A tool holder positioning device capable of rapid tool change according to claim 4, characterized in that: The positioning groove (2) includes a first groove body (21) and a second groove body (22) respectively located at two ends of the support seat (6); the plurality of clamping flaps (3) are arranged in the first groove body (21); the actuator (4) also includes a second drive seat (44) slidably arranged in the second groove body (22) and a second drive shaft (45) arranged on the second drive seat (44); a second drive groove (46) is provided on the first drive seat (41); the second drive shaft (45) can be inserted into the second drive groove (46) or detached from the second drive groove (46).

6. A tool holder positioning device capable of rapid tool change according to claim 5, characterized in that: A plurality of limiting openings (47) are provided on the groove wall of the second driving groove (46) around its own circumference, and a movable limiting block (7) is provided in each limiting opening (47). The plurality of limiting blocks (7) can pass through the limiting opening (47) and abut against the peripheral side of the second driving shaft (45).

7. A tool holder positioning device capable of rapid tool change according to claim 6, characterized in that: A second driving head (48) is provided at the end of the second driving shaft (45), and the diameter of the second driving head (48) gradually increases along the direction from the second driving seat (44) to the first driving seat (41). The side of the limit block (7) close to the second driving head (48) has a first mating surface (71), and the first mating surface (71) is an inclined surface. A plurality of the first mating surfaces (71) are slidably attached to the peripheral side of the second driving head (48).

8. The tool holder positioning device capable of rapid tool change according to claim 7, characterized in that: A limiting portion (49) is also provided between the second drive shaft (45) and the second drive head (48), and the diameter of the limiting portion (49) gradually increases along the direction from the second drive shaft (45) to the second drive head (48). The limiting block (7) also has a limiting surface (72) on one side close to the second drive head (48), and the limiting surface (72) is an inclined surface. The first mating surface (71) and the limiting surface (72) are arranged along the direction from the second drive seat (44) to the first drive seat (41), and the plurality of limiting surfaces (72) can be supported on the circumferential side of the limiting portion (49), respectively.

9. The tool holder positioning device capable of rapid tool change according to claim 7, characterized in that: The slide groove (62) has a notch portion (63) at one end close to the second drive seat (44), and the diameter of the notch portion (63) gradually increases along the direction from the first drive seat (41) to the second drive seat (44). The limit block (7) is provided with a second mating surface (73) on one side away from the second drive head (48), and the second mating surface (73) is an inclined surface. A plurality of second mating surfaces (73) are respectively slidably attached to the inner wall of the notch portion (63).

10. The tool holder positioning device capable of rapid tool change according to claim 5, characterized in that: The second trough body (22) comprises a trough body a (221) and a trough body b (222) respectively located at two ends of the second drive seat (44); the base (1) is provided with a first gas channel (8) connected to the trough body a (221) and a second gas channel (9) connected to the trough body b (222); a second elastic member (10) is also provided in the trough body b (222); two ends of the second elastic member (10) are respectively connected to the support seat (6) and the second drive seat (44).

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