Automatic clamping mechanism for tool and operation method thereof

Abstract

The present application relates to the field of tool clamping, and discloses an automatic clamping mechanism for a tool and an operating method thereof, which comprises an upper connecting seat, an upper clamping member connected to the upper connecting seat, a lower connecting seat, and a lower clamping member connected to the lower connecting seat, and a lifting assembly, wherein the lifting assembly is used to drive the upper clamping member and the lower clamping member to lock each other, and when the upper clamping member and the lower clamping member are locked and fixed, the upper connecting seat and the lower connecting seat are fixed. The present application has the effect of simplifying the operation steps of installing and disassembling the upper connecting seat and the lower connecting seat, thereby improving the working efficiency.

Description

Technical Field

[0001] The present application relates to the field of tool clamping, and in particular to an automatic clamping mechanism for a tool and an operating method thereof. Background Art

[0002] At present, when a part is processed by a tool, the tool needs to be clamped and fixed, and then the part is processed by the tool. Usually, the tool is clamped and fixed by a clamping mechanism connected to the machine head so that the tool can process the part.

[0003] refer to Figure 1 In the related art, the clamping mechanism includes an upper connecting seat 1 and a lower connecting seat 4, the lower connecting seat 4 is connected to a head body 10, the head body 10 is used to connect with a tool, and the lower connecting seat 4 is connected to the upper connecting seat 1 through a screw 9. During operation, the operator connects the lower connecting seat 4 to the upper connecting seat 1 through the screw 9, thereby fixing the head body 10 and the tool so that the tool can process the parts. In order to process different parts, the operator needs to replace the tool, so it is necessary to unscrew the screw 9 to disassemble the lower connecting seat 4 and the upper connecting seat 1, and then replace the tool.

[0004] With regard to the above-mentioned related technologies, the inventor believes that the upper connecting seat and the lower connecting seat are connected by screws. Before processing, the upper connecting seat and the lower connecting seat need to be fixedly connected with the screws. When replacing the tool, the screws need to be unscrewed, the lower connecting seat and the upper connecting seat are disassembled, and then another tool is replaced to process the parts. That is, the installation and disassembly operations of the upper connecting seat and the lower connecting seat are relatively cumbersome and the work efficiency is low. Summary of the invention

[0005] In order to improve the defects in the related art that the installation and disassembly operations of the upper connecting seat and the lower connecting seat are relatively cumbersome and the work efficiency is low, the present application provides an automatic clamping mechanism for a tool and an operating method thereof.

[0006] The present application provides an automatic clamping mechanism for a tool, which is obtained by adopting the following technical solution:

[0007] An automatic clamping mechanism for a tool comprises an upper connecting seat, an upper clamping piece connected to the upper connecting seat, a lower connecting seat, a lower clamping piece connected to the lower connecting seat, and a lifting assembly. The lifting assembly is used to drive the upper clamping piece and the lower clamping piece to lock each other. When the upper clamping piece and the lower clamping piece are locked and fixed, the upper connecting seat and the lower connecting seat are fixed.

[0008] Through the above technical solution, when it is necessary to fix the lower connecting seat with the upper connecting seat, the lower clamping part is first aligned with the upper clamping part in the upper and lower positions, and the lifting assembly drives the upper clamping part to descend, so that the upper clamping part moves to the bottom of the lower clamping part, and then drives the lower connecting seat to rotate, so that the upper clamping part and the lower clamping part are engaged, and at this time, the lifting assembly drives the upper clamping part to rise, so that the lower clamping part drives the lower connecting seat and the head body and the tool position to rise, until the upper clamping part and the lower clamping part are locked with each other, so as to achieve the clamping and fixing of the tool, so that the tool can process the parts. After the processing is completed, and the tool needs to be replaced, the lifting assembly drives the upper clamping part to descend, and then drives the lower connecting seat to rotate in the opposite direction, so that the upper clamping part and the lower clamping part are released from the locking and fixing, and then the lower clamping part and the upper clamping part are released from the fixing, that is, the lower connecting seat is separated from the upper connecting seat, the operation is simple and convenient, and it is conducive to improving work efficiency.

[0009] Preferably: the upper clamping member includes an upper clamping ring connected to the upper connecting seat and a plurality of first clamping blocks fixed on the outer circumference of the upper clamping ring, and a first notch is preset between two adjacent first clamping blocks; the lower clamping member includes a lower clamping ring connected to the lower connecting seat and a plurality of second clamping blocks fixed on the inner circumference of the lower clamping ring, and a second notch is preset between two adjacent second clamping blocks for the first clamping block to pass through.

[0010] When the tool is to be replaced, the upper clamping ring is driven to lower its position, and the lower clamping ring is then driven to rotate in the opposite direction, so that the first clamping block corresponds to the second notch, and the upper clamping ring is removed from the lower clamping ring, thereby removing the lower clamping ring from the upper connecting seat. The operation is simple and convenient.

[0011] Preferably, the upper clamping ring is detachably connected to the output end of the lifting assembly.

[0012] Through the above technical solution, the upper clamping ring and the lifting assembly can be detachably installed, which is convenient for the operator to install or disassemble the upper clamping ring and the output end of the lifting assembly.

[0013] Preferably, a step groove is provided along the inner periphery of one side of the output end of the lifting assembly facing the upper clamping ring, and a protrusion is fixed along the periphery of one end of the upper clamping ring facing the upper connecting seat, and the protrusion is correspondingly sleeved on the step groove.

[0014] Through the above technical solution, when installing the upper clamping ring, the operator aligns the protrusion with the step groove, so that the upper clamping ring is correspondingly sleeved on the outer side of the output end of the lifting component. When the lifting component drives the upper clamping ring to rise and fall, the protrusion and the step groove slide up and down to cooperate, which plays a guiding role for the upper clamping ring.

[0015] Preferably, the lower clamping ring is detachably connected to the lower connecting seat.

[0016] Through the above technical solution, the lower clamping ring and the lower connecting seat can be detachably installed, which is convenient for the operator to install or disassemble the lower clamping ring and the lower connecting seat.

[0017] Preferably: a guide member is provided between the upper connecting seat and the lower connecting seat, the guide member includes a latch, the latch is connected to the upper connecting seat, a recess is provided on one side of the lower connecting seat facing the upper connecting seat, the latch is plugged into and fits with the recess.

[0018] Through the above technical solution, when the lifting assembly drives the upper clamping ring to rise and fall, the pin corresponds to the position of the sink groove, the pin is correspondingly inserted and restricted in the sink groove, and the pin moves along the sink groove, which plays a guiding and limiting role for the upper clamping ring.

[0019] Preferably, a guide cylinder is inserted into the sink, and a filling rubber layer is filled between the inner wall of the sink and the outer wall of the guide cylinder.

[0020] Through the above technical solution, when installing the guide cylinder, the operator first inserts the guide cylinder into the groove, and drives the pin to be correspondingly inserted into the guide cylinder, and then the operator injects glue between the inner wall of the groove and the outer side of the guide cylinder. After the glue solidifies, a filling glue layer is formed, so that the guide cylinder is fixed and restricted in the groove; this arrangement is conducive to eliminating the error of the plug-in fit between the groove and the pin, and is conducive to improving the accuracy of the plug-in fit between the pin and the guide cylinder.

[0021] Preferably, the guide member and the sink are both preset with interconnected oil passages, and a sealing member is provided on the lower connecting seat.

[0022] Through the above technical solution, when the upper connecting seat and the lower connecting seat are fixedly connected, the oil passage can be used to pass hydraulic oil, thereby facilitating the provision of hydraulic oil to other structures of the head body. The seal is conducive to enhancing the sealing of the oil passage connection between the upper connecting seat and the lower connecting seat, reducing the possibility of oil leakage in the oil passage.

[0023] Preferably, the sealing member comprises a first sealing ring, an annular groove is formed along the inner circumference of the guide cylinder on the side of the recessed groove facing the latch, the first sealing ring is filled in the annular groove, and the side of the latch away from the upper connecting seat contacts the first sealing ring.

[0024] Through the above technical solution, when the upper connecting seat and the lower connecting seat conflict with each other, the pin is correspondingly inserted in the guide cylinder, and the pin conflicts with the first sealing ring. At this time, the oil passages in the upper connecting seat and the lower connecting seat are correspondingly connected, and hydraulic oil is introduced into the oil passages. The setting of the first sealing ring seals the joint between the end of the pin away from the upper connecting seat and the sink groove, which is beneficial to reduce the possibility of oil leakage in the oil passage and improve the sealing effect of the oil passage.

[0025] The present application also provides an operating method for an automatic clamping mechanism for a tool, which is obtained by adopting the following technical solution:

[0026] An operating method for an automatic clamping mechanism for a tool comprises the following operating steps:

[0027] Step 1: Align the upper and lower positions of the upper clamping piece with the lower clamping piece, and then drive the upper clamping piece to descend so that the upper clamping piece moves below the lower clamping piece;

[0028] Step 2: driving the lower connecting seat to drive the lower clamping member to rotate, so that the lower clamping member and the upper clamping member are engaged with each other;

[0029] Step 3: Drive the upper clamping part to rise, and the upper clamping part drives the lower clamping part to rise until the upper clamping part and the lower clamping part are pressed against each other, so that the upper connecting seat and the lower connecting seat are locked to achieve the clamping and fixing of the tool.

[0030] Through the above technical solution, when the tool needs to be clamped and fixed, the operator first matches the upper clamping part with the lower clamping seat, then drives the upper clamping part to move to the bottom of the lower clamping part, then drives the lower connecting part to rotate, so that the lower clamping part is buckled with the upper clamping part, and then drives the upper clamping part to drive the lower clamping part to rise, until the lower clamping part is buckled with the upper clamping part, so that the lower connecting seat and the upper connecting seat are fixed, thereby achieving the clamping and fixing of the tool; when the tool needs to be disassembled and replaced, the upper clamping part is first driven to descend, then the lower connecting seat is driven to drive the lower clamping part to rotate in the opposite direction, and then the lower clamping part is separated from the upper connecting part, so that the lower connecting seat is separated from the upper connecting seat, thereby achieving the disassembly of the tool. This arrangement makes the installation and disassembly of the tool simple and convenient, which is conducive to improving work efficiency.

[0031] In summary, the present application includes at least one of the following beneficial technical effects:

[0032] 1. Simplify the installation and disassembly steps between the lower connecting seat and the upper connecting seat, which is conducive to improving work efficiency;

[0033] 2. The upper connecting seat is driven to rise and fall by the lifting assembly, so that the upper connecting seat and the lower connecting seat are locked or loosened, and the upper clamping block and the lower clamping block are rotated by rotating the lower connecting seat, so that the lower connecting seat can be installed or disassembled, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of a clamping and fixing mechanism used to reflect the relevant technology.

[0035] Figure 2 It is a schematic diagram of the overall structure of the automatic clamping mechanism in the embodiment of the present application.

[0036] Figure 3 It is a structural schematic diagram used to reflect the upper clamping member and the lower clamping member in the embodiment of the present application.

[0037] Figure 4 yes Figure 2 Enlarged view of part A in the middle.

[0038] Figure 5 yes Figure 2 Enlarged view of part B in the middle.

[0039] 1. The upper connecting seat; 2. The lifting assembly; 21. The hydraulic cylinder; 221. The step groove; 3. The upper clamping member; 31. The upper clamping ring; 311. The first clamping block; 312. The first notch; 313. The first bolt; 314. The protrusion; 4. The lower connecting seat; 5. The lower clamping member; 51. The lower clamping ring; 511. The second clamping block; 512. The second notch; 513. The second bolt; 6. The upper end cover; 61. The horizontal part; 62. The vertical part; 7. The guide member; 71. The latch; 72. The guide cylinder; 73. The sink groove; 731. The truncated cone-shaped glue injection port; 732. The filling glue layer; 74. The oil channel; 75. The ring groove; 751. The first sealing ring; 8. The slide; 9. The screw; 10. The head body. DETAILED DESCRIPTION

[0040] The following is combined with Figure 2-5 This application is described in further detail.

[0041] An automatic clamping mechanism for a tool and an operating method thereof are disclosed in an embodiment of the present application.

[0042] Reference Figure 2 A ram 8 is provided above the automatic clamping mechanism, and the ram 8 is fixedly connected to the machine tool.

[0043] Reference Figure 2The automatic clamping mechanism includes an upper connecting seat 1, a lifting assembly 2, an upper clamping member 3, a lower connecting seat 4, and a lower clamping member 5. The upper connecting seat 1 is fixedly connected to the ram 8 by bolts, the upper clamping member 3 is connected to the upper connecting seat 1, the lifting assembly 2 is configured as a hydraulic cylinder 21, the hydraulic cylinder 21 is fixedly connected to the upper connecting seat 1, and the upper clamping member 3 is connected to the output end of the hydraulic cylinder 21. The hydraulic cylinder 21 is used to drive the upper clamping member 3 to move in the vertical direction, the lower connecting seat 4 is connected to the head body 10, the head body 10 is fixedly connected to the tool, and the lower clamping member 5 is connected to the lower connecting seat 4.

[0044] Reference Figure 3 and Figure 4 The upper clamping member 3 includes an upper clamping ring 31 and a plurality of first clamping blocks 311. The number of the first clamping blocks 311 can be four. The first clamping blocks 311 are integrally formed with the upper clamping ring 31. The four first clamping blocks 311 are equally divided along the outer circumference of the upper clamping ring 31. A first notch 312 is preset between two adjacent first clamping blocks 311. The upper clamping ring 31 is connected to the output end of the hydraulic cylinder 21. A step groove 221 is provided along the inner circumference of the output end of the hydraulic cylinder 21 facing the upper clamping ring 31. A protrusion 314 is integrally connected along the inner circumference of one end of the upper clamping ring 31 facing the hydraulic cylinder 21. When the upper clamping ring 31 and the hydraulic cylinder 21 are installed and fixed, the protrusion 314 is aligned with the step groove 221 so that the hydraulic cylinder 21 and the upper clamping ring 31 remain concentric. Then, the upper clamping ring 31 is bolted to the output end of the hydraulic cylinder 21 by the first bolt 313.

[0045] Reference Figure 3 The lower clamping member 5 includes a lower clamping ring 51 and a plurality of second clamping blocks 511. The lower clamping ring 51 is threadedly connected to the side of the lower connecting seat 4 facing the upper connecting seat 1 through a second bolt 513. The number of the second clamping blocks 511 can be the same as the number of the first clamping blocks 311, that is, four. The second clamping blocks 511 are integrally connected to the lower clamping ring 51. The four second clamping blocks 511 are equally divided along the inner circumference of the lower clamping ring 51. A second notch 512 is provided between two adjacent second clamping blocks 511 for the first clamping blocks 311 to pass through. At the same time, the first notch 312 between two adjacent first clamping blocks 311 can be provided for the second clamping blocks 511 to pass through.

[0046] refer to Figure 2 and Figure 3When working, first make the lower clamping ring 51 correspond to the upper clamping ring 31 in the upper and lower positions, so that the first clamping block 311 corresponds to the second notch 512, and the second clamping block 511 corresponds to the first notch 312. At this time, the hydraulic cylinder 21 drives the upper clamping ring 31 to descend, so that the first clamping block 311 extends into the lower connecting seat 4. At this time, the lower connecting seat 4 rotates, so that the first clamping block 311 and the second notch 512 are staggered, and the first clamping block 311 and the second clamping block 511 coincide with each other in the upper and lower positions. At this time, the second clamping block 511 is suspended below the first clamping block 311. Then, the hydraulic cylinder 21 drives the upper clamping ring 31 to rise, and the first clamping block 311 drives the second clamping block 511 to rise until the second clamping block 511 contacts the upper connecting seat 1. At this time, the first clamping block 311 and the second clamping block 511 are pressed tightly, and the upper connecting seat 1 and the lower connecting seat 4 are fixed, thereby realizing the clamping and fixing of the tool.

[0047] When the tool needs to be replaced, the hydraulic cylinder 21 drives the upper clamping ring 31 to descend, so that the first clamping block 311 and the second clamping block 511 are released, and then the lower connecting seat 4 rotates in the opposite direction until the first clamping block 311 corresponds to the second notch 512 and the second clamping block 511 corresponds to the first notch 312, so that the operator can disengage the upper clamping ring 31 and the lower clamping ring 51, thereby removing the lower connecting seat 4 from the upper connecting seat 1 and replacing the new tool to continue processing. The operation is simple and convenient, which is conducive to improving work efficiency.

[0048] Reference Figure 4 The upper end cover 6 of the hydraulic cylinder 21 is arranged on the side of the connecting seat 1 facing the lower connecting seat 4. The upper end cover 6 includes a horizontal portion 61 and a vertical portion 62 that are integrally connected. The vertical portion 62 is correspondingly clamped between the hydraulic cylinder 21 and the upper connecting seat 1, and the side of the horizontal portion 61 away from the vertical portion 62 corresponds to the lower clamping ring 51.

[0049] Reference Figure 5 A guide member 7 is provided between the horizontal portion 61 and the lower clamping ring 51. The guide member 7 includes a latch 71. The latch 71 is arranged in the horizontal portion 61 and arranged in the vertical direction. The latch 71 protrudes toward the lower clamping ring 51. A sink groove 73 is correspondingly provided on the side of the lower connecting seat 4 facing the latch 71. The inner diameter of the sink groove 73 is larger than the outer diameter of the latch 71. A truncated cone-shaped glue injection port 731 is provided along the periphery of the open end of the sink groove 73. A guide cylinder 72 is provided in the sink groove 73. The guide cylinder 72 is a copper sleeve. The larger end of the truncated cone-shaped glue injection port 731 faces the latch 71.

[0050] Reference Figure 5When installing and fixing the guide cylinder 72, the operator first inserts the guide cylinder 72 into the sink groove 73, and the hydraulic cylinder 21 drives the pin 71 to be correspondingly inserted into the guide cylinder 72. Then, the operator injects glue through the truncated cone-shaped glue injection port 731 toward the inner side of the sink groove 73 and the outer side of the guide cylinder 72. After the glue solidifies, a filling glue layer 732 is formed, thereby fixing the guide cylinder 72 in the sink groove 73. This arrangement is conducive to reducing the error of the plug-in fit between the pin 71 and the sink groove 73, improving the accuracy of the plug-in fit between the pin 71 and the guide cylinder 72, and keeping the pin 71 and the guide cylinder 72 concentric.

[0051] Reference Figure 5 When the upper clamping ring 31 and the lower clamping ring 51 overlap in the vertical position, the latch pin 71 and the guide cylinder 72 correspond in the vertical direction, and then the hydraulic cylinder 21 drives the upper clamping ring 31 to rise, and the upper clamping ring 31 drives the lower clamping ring 51 to move up, so that the latch pin 71 is correspondingly inserted into the guide cylinder 72. The plug-in cooperation between the latch pin 71 and the guide cylinder 72 can guide the movement of the lower clamping ring 51.

[0052] Reference Figure 5 , the latch 71 and the recess 73 are preset with a connected oil passage 74, which is used to connect with the connecting pipe of the external device, so as to provide hydraulic oil for other structures of the machine tool, and the oil passage 74 extends into the lower clamping ring 51. The lower clamping ring 51 is provided with a seal for preventing oil leakage from the oil passage 74, and the seal includes a first sealing ring 751. The recess 73 is provided with an annular groove 75 along the inner circumference of the guide cylinder 72 on the side facing the latch 71, and the first sealing ring 751 is fixedly connected in the annular groove 75. When the lower clamping ring 51 and the upper clamping ring 31 are locked with each other, the latch 71 and the oil passage 74 in the recess 73 are correspondingly connected, and at this time, the side of the latch 71 away from the upper clamping ring 31 conflicts with the first sealing ring 751. Oil flows in the oil passage 74 to provide hydraulic oil for other structures of the head body 10. The first sealing ring 751 seals the joint between the end of the latch pin 71 away from the upper clamping ring 31 and the recessed groove 73 , thereby enhancing the sealing between the latch pin 71 and the recessed groove 73 and reducing the possibility of oil leakage in the oil passage 74 .

[0053] An operating method (implementation principle) of an automatic clamping mechanism for a tool in an embodiment of the present application is as follows:

[0054] During operation, the operator first adjusts the upper and lower positions of the lower clamping ring 51 and the upper clamping ring 31 so that the second clamping block 511 and the first notch 312, and the first clamping block 311 and the second notch 512 correspond to each other. Then, the hydraulic cylinder 21 drives the upper clamping ring 31 to descend so that the second clamping block 511 extends into the upper clamping ring 31 through the first notch 312. Then, the lower connecting seat 4 rotates so that the lower connecting seat 4 drives the lower clamping ring 51 to rotate, so that the first clamping block 311 and the second clamping block 511 are engaged with each other, and the latch 71 and the guide cylinder 72 correspond to each other in terms of their upper and lower positions.

[0055] Then the hydraulic cylinder 21 drives the upper clamping ring 31 to rise, and the upper clamping ring 31 drives the lower clamping ring 51 to rise, until the upper clamping ring 31 and the lower clamping ring 51 are locked and fastened, the second clamping block 511 contacts the horizontal portion 61 of the upper end cover 6, and the latch 71 is correspondingly inserted into the guide cylinder 72. At this time, the lower connecting seat 4 is connected and fixed with the upper connecting seat 1, so as to achieve the clamping and fixing of the tool;

[0056] When the tool needs to be replaced, the hydraulic cylinder 21 drives the upper clamping ring 31 to descend, so that the upper clamping ring 31 drives the lower clamping ring 51 to descend, and then the lower connecting seat 4 drives the lower clamping ring 51 to rotate in the opposite direction until the first clamping block 311 corresponds to the second notch 512 and the second clamping block 511 corresponds to the first notch 312. At this time, the lower clamping ring 51 and the upper clamping ring 31 are released, so that the lower connecting seat 4 and the upper connecting seat 1 are disassembled; then a new tool is replaced, and the operation is simple and convenient.

[0057] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. An automatic clamping mechanism for a tool, characterized in that: The invention comprises an upper connecting seat (1), an upper clamping member (3) connected to the upper connecting seat (1), a lower connecting seat (4), a lower clamping member (5) connected to the lower connecting seat (4), and a lifting assembly (2); the lifting assembly (2) is configured as a hydraulic cylinder (21); the hydraulic cylinder (21) is fixedly connected to the upper connecting seat (1); the upper clamping member (3) is connected to the output end of the hydraulic cylinder (21); the lifting assembly (2) is used to drive the upper clamping member (3) and the lower clamping member (5) to lock each other; when the upper clamping member (3) and the lower clamping member (5) are locked and fixed, the upper connecting seat (1) and the lower connecting seat (4) are fixed; The upper clamping member (3) comprises an upper clamping ring (31) connected to the upper connecting seat (1) and a plurality of first clamping blocks (311) fixedly arranged on the outer periphery of the upper clamping ring (31), and a first notch (312) is preset between two adjacent first clamping blocks (311); the lower clamping member (5) comprises a lower clamping ring (51) connected to the lower connecting seat (4) and a plurality of second clamping blocks (511) fixedly arranged on the inner periphery of the lower clamping ring (51), and a second notch (512) for the first clamping block (311) to pass through is preset between two adjacent second clamping blocks (511); The upper end cover (6) of the hydraulic cylinder (21) is arranged on a side of the upper connecting seat (1) facing the lower connecting seat (4), the upper end cover (6) comprises a horizontal portion (61) and a vertical portion (62) connected in an integral manner, the vertical portion (62) is correspondingly clamped between the hydraulic cylinder (21) and the upper connecting seat (1), and a side of the horizontal portion (61) facing away from the vertical portion (62) corresponds to the lower clamping ring (51); A guide member (7) is provided between the upper connecting seat (1) and the lower connecting seat (4), and the guide member (7) comprises a latch (71), and the latch (71) is connected to the upper connecting seat (1). The latch (71) is arranged in the horizontal portion (61) and is arranged along the vertical direction. A recessed groove (73) is provided on one side of the lower connecting seat (4) facing the upper connecting seat (1), and the latch (71) is plugged into and matched with the recessed groove (73).

2. The automatic clamping mechanism for a tool according to claim 1, characterized in that: The upper clamping ring (31) is detachably connected to the output end of the lifting assembly (2).

3. An automatic clamping mechanism for a tool according to claim 1 or 2, characterized in that: A step groove (221) is provided along the inner periphery of the output end of the lifting assembly (2) facing the upper clamping ring (31), and a protrusion (314) is fixed along the periphery of one end of the upper clamping ring (31) facing the upper connecting seat (1).

4. According to the automatic clamping mechanism for a tool as described in claim 1, the lower clamping ring (51) is detachably connected to the lower connecting seat (4).

5. The automatic clamping mechanism for a tool according to claim 4, characterized in that: A guide tube (72) is inserted into the sink groove (73), and a filling rubber layer (732) is filled between the inner wall of the sink groove (73) and the outer wall of the guide tube (72).

6. The automatic clamping mechanism for a tool according to claim 4, characterized in that: The guide member (7) and the sink (73) are both preset with interconnected oil passages (74), and a sealing member is provided on the lower connecting seat (4).

7. An automatic clamping mechanism for a tool according to claim 6, characterized in that: The sealing member comprises a first sealing ring (751), a ring groove (75) is provided along the inner circumference of the guide cylinder (72) on the side of the recessed groove (73) facing the latch pin (71), the first sealing ring (751) is filled in the ring groove (75), and the side of the latch pin (71) away from the upper connecting seat (1) is in conflict with the first sealing ring (751).

8. An operating method for the automatic clamping mechanism for a tool using any one of claims 1 to 7, characterized in that: The steps include: Step 1: Align the upper and lower positions of the upper clamping member (3) and the lower clamping member (5), and then drive the upper clamping member (3) to descend, so that the upper clamping member (3) moves below the lower clamping member (5); Step 2: driving the lower connecting seat (4) to drive the lower clamping member (5) to rotate, so that the lower clamping member (5) and the upper clamping member (3) are mutually engaged; Step 3: driving the upper clamping member (3) to rise, and the upper clamping member (3) drives the lower clamping member (5) to rise, until the upper clamping member (3) and the lower clamping member (5) are pressed against each other, so that the upper connecting seat (1) and the lower connecting seat (4) are locked, thereby achieving the clamping and fixing of the tool.

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