TWM586651U - Clamping jaw tool - Google Patents

Abstract

This creation provides a gripper tool suitable for assembling in the spindle of a processing machine, especially a spindle capable of assembling a BT40 tool holder. This gripper tool is used to hold a handle. The gripper tool includes a ejector pin. And clamping jaw group, when the ejector lever is located at the broach position, the clamping jaw group clamps the handle, and there is a ejector gap between the bottom end of the abutting section of the ejector and the top of the handle, the ejector gap is between 1 When the ejector lever is in the ejector position, the bottom end of the abutting section of the ejector lever contacts the handle. When the ejector lever is in the loose position, the gripper group releases the handle, and the ejector position and loose The distance between the knife positions is between 1 mm and 5.5 mm. With this, the gripper tool of this creation can respond quickly when ejecting the tool holder, and eject the tool holder a considerable distance, so that the tool holder is not related to The spindles are tightly coupled and can be quickly and stably ejected to a predetermined position, reducing the uncertainty of the position of the tool holder, thereby improving the smoothness of the tool change process.

Description

Gripper tool

This creation is about gripper tools, especially a gripper tool for gripping tool holders.

Vertical machining center machines or drilling and tapping machines are mainly used to process the lower workpiece by the spindle base and the spindle moving up and down. Today's drilling and tapping machines already have the function of automatic tool change, mainly to install the tool magazine on Above the front side of the spindle holder, when the spindle is processing at the processing station below, the tool magazine will be on standby. When the spindle needs to change the tool, just move the spindle holder upward, and the tool magazine can be directly clamped on the handle and An example is a processing machine such as described in the TWM494667 patent.

In the above-mentioned processing machine, when the spindle tool is replaced, the spindle base needs to be moved upward. During the movement, the rocker arm will be rotated by the cam plate abutting, and the pull rod and the clamping jaw in the spindle will be pushed down to make the tool holder from When the spindle is loosened, the tool holder of the tool magazine can hold the tool holder to prevent the tool holder from falling. After the spindle holder continues to move upward, the tool holder can be separated from the spindle. After the tool magazine rotates and replaces other tool holders, the spindle holder returns to the Move down, insert another tool holder on the main shaft, and reset the rocker arm, the draw bar and the clamping jaws in the opposite direction. The tool holder can be clamped and fixed for the spindle holder to drive the main shaft to continue to move down for processing.

When the aforementioned processing machine or other similar processing machine with a main shaft is changing a tool, the tool holder is loosened by moving the clamping jaws. In order to avoid the close combination of the tool holder and the main shaft with self-tightening taper, thermal expansion and contraction or friction, It cannot be dismantled. During the downward movement of the clamping jaw, the lever will be used to pull the end of the ejector lever against the end of the ejector lever, and the ejector will be ejected downward. The related mechanism is called a loosening mechanism or a knife in the technical field of the processing machine. Institutions, in addition to the aforementioned TWM494667 patents, for example, TWI651155 patents also describe such institutions.

The above-mentioned loosening mechanism, as shown in Figure 4 of the TWM494667 patent, will leave a gap between the handle and the handle of the handle. When the handle is pushed out, the handle can be moved first to clamp the handle. The jaws move and loosen, so that the clamping jaws do not contact the handle bar. After the clamping jaws are fully opened and loosened, the pull bar will contact the handle bar and push the handle out. During the movement of the pull bar, the broach The lever will first move through the interval before contacting and pulling out the tool holder. Only push the tool holder out a little distance at the end of the travel stroke to ensure that the tool holder has been loosened, which can prevent the tool holder from moving too far and misaligning with the tool magazine. Therefore, the distance between the broach bar and the pull bolt before the loosening knife is only slightly smaller than the moving stroke of the broach bar and the clamping jaw.

However, in the above-mentioned vertical machining center machine or drilling and tapping machine, the tool holder may not be tightly coupled to the main shaft due to continuous tool change or other factors. The tool holder will be moved by the gravity while the gripper moves downward to release it. Down movement, in the time series change of the tool change process and its mechanism design, we must consider the possible movement of the tool holder to reduce the speed of the spindle seat and the spindle up, or even leave the spindle seat at a specific stage of the tool change process. One or several specific positions, wait for the tool magazine to actually hold the tool holder, and then continue to move up to complete the tool change, which limits the speed of tool change.

Secondly, if we do not consider the position error that the tool holder may be stuck on the spindle or the spindle, and directly move the spindle holder and the spindle to complete the tool change, the tool holder and tool magazine may be caused by the unstable position of the tool holder. Impact, or even wear of the tool holder, spindle, jaw, or broach, reduces its service life.

In view of this, one of the objectives of this creation is to provide a gripper tool that can be installed in the spindle of a processing machine, and can reduce the delay of the spindle during the tool change process and increase the tool change speed.

In order to achieve the above and other objectives, the present invention provides a clamping jaw tool suitable for assembling in a spindle of a processing machine. The clamping jaw tool is used to clamp a handle. The clamping jaw tool includes a jack, an elastic member and A clamping jaw group, the ejector rod has a sliding section, a ring groove and an abutting section, the ring groove is located between the sliding section and the abutting section, and the abutting section can abut the knife handle. The elastic member is sleeved on the ejector rod. The clamping jaw group has a plurality of claw members and a bundle member, the plurality of claw members surround the ejector rod, the plurality of claw members can collectively clamp the knife handle, and each of the claw members has a limiting portion, and The annular groove can receive the limiting portion, and the limiting portion has a set of connecting grooves, and the connecting grooves receive the bundle member. Wherein, when the ejector rod is located at a broach position, the clamping jaw group clamps the handle, and a ejector gap is separated between the bottom end of the abutting section of the ejector rod and the top end of the holder. The gap is between 1 mm and 4.5 mm. When the ejector pin is in a ejector knife position, the bottom end of the abutting section of the ejector pin contacts the knife handle. When the ejector pin is in a loose knife position, The jaw set releases the handle, and the distance between the broach position and the loose position is between 5.5 mm and 6.5 mm.

In some cases, the ejector gap may be between 2.5 mm and 3.5 mm, and the distance between the ejector position and the loose cutter position may be between 2.5 mm and 3.5 mm.

In some cases, the abutting section of the ejector rod further has an outer tapered surface, the outer diameter of the outer tapered surface gradually decreases toward the ring groove, and the inside of each claw member further has an inclined abutment surface. The inclined abutting surface can abut the outer tapered surface.

In some cases, the ejector rod further has an externally threaded section and a positioning section. The externally threaded section can be screw-locked to the main shaft. The positioning section is located between the externally threaded section and the sliding section. The upper end of the piece abuts against the positioning section.

In some cases, the elastic member may be a compression spring or a ripple spring, and the cluster member may be an elastic collar or ring spring.

In some cases, the bottom of each of the claw members further has a convex portion, which extends away from an axis of the ejector rod, and the convex portion is adapted to abut against the main shaft.

In some cases, each of the claw members further has a clamping portion, and the inside of the clamping portion protrudes toward an axis of the ejector rod. The clamping portions of the plurality of claw members can collectively clamp the tool holder.

In some cases, the jaw tool further has a pushing piece, the pushing piece has a perforation, a top surface, and a pushing piece, and the sliding section of the pushing rod is movably inserted in the pushing piece. The perforation of the abutting member, the lower end of the elastic member abuts against the top surface, and the pushing block extends downward from the pushing member.

In some cases, the pushing member further has a pipe portion, and the elastic member surrounds the sliding section of the ejector and the periphery of the pipe portion of the pushing member.

In some cases, the limiting portion of each claw member further has a top surface, the top surface is recessed downward to form a slot, and the slot receives the pushing block of the pushing member, wherein , The pushing piece of the pushing piece further has a first bearing surface, the first bearing surface is inclined to an axis of the ejector rod, and the slot of the claw piece further has a second bearing surface, the first The abutting surface can abut against the second abutting surface.

In this way, the gripper tool provided by this creation enables the spindle to be ejected to a fixed position regardless of whether the tool holder is tightly combined with the spindle during the tool change process, enabling the tool magazine to quickly and smoothly hold the tool. There is no need to wait at a specific position to hold the tool holder, which improves the fluency of the tool change and reduces the operation time required for the tool change.

Please refer to FIG. 1, FIG. 2 and FIG. 7. This embodiment discloses a clamping jaw tool, which includes an ejector pin 100, an elastic member 120, a pushing member 130, and a clamping jaw group 140.

The ejector pin 100 has an external thread section 101, a positioning section 102, a sliding section 103, a ring groove 104, and an abutting section 105. The positioning section 102 is located between the external thread section 101 and the sliding section 103, and the outer diameter of the positioning section 102 Larger than the externally threaded section 101 and the sliding section 103, the ring groove 104 is located between the sliding section 103 and the abutting section 105. The abutting section 105 further has an outer tapered surface 1051, and the outer diameter of the outer tapered surface 1051 faces the ring groove. The direction of 104 gradually decreases.

The elastic member 120 is sleeved on the top rod 100. The upper end of the elastic member 120 abuts against the positioning section 102. The elastic member 120 may be a compression spring or a ripple spring. In this embodiment, the elastic member 120 is a compression spring.

The pushing member 130 has a perforation 131, a top surface 132, a plurality of pushing blocks 133, and a tube portion 134. The sliding section 103 of the pushing rod 100 is movably inserted into the through hole 131 of the pushing member 130, and the upper end of the elastic member 120 The lower end of the elastic member 120 abuts against the positioning section 102 of the ejector 100 and the top surface 132 of the pushing member 130, so that the elastic member 120 is located between the positioning section 102 of the ejector 100 and the top surface 132 of the pushing member 130. The elastic member 120 surrounds the periphery of the sliding section 103 of the ejector pin 100 and the tube portion 134 of the pushing member 130. The pushing block 133 extends downward from the pushing member 130. The pushing block 133 has a first bearing surface. 1331. The first contact surface 1331 is inclined to the axis X of the ejector pin 100. In this embodiment, the first contact surface 1331 gradually approaches the second contact surface 1415 of the claw member 141 from the outside to the inside. In addition, in this embodiment, The number of pushing blocks 133 is four, but the number of pushing blocks 133 can be adjusted according to actual needs, and this creation is not limited to this.

The clamping jaw group 140 includes a plurality of claw members 141 and a bundle member 142. In this embodiment, the number of the claw members 141 is four. However, the number of the claw members 141 can be changed according to actual needs. The ejector pins 100 are arranged in a ring shape. There is a gap 143 between two adjacent claw members, and a cluster member 142 sets four claw members 141. The cluster member 142 may be an elastic collar or a ring spring. In this embodiment, The clustering member 142 is an elastic collar. The upper side of the claw member 141 has a limiting portion 1411. The limiting portion 1411 has a top surface 1412 and a socket groove 1413. The pushing member 130 abuts against the top surface 1412. The top surface 1412 is recessed downward to form four slots 1414. The number and position of the slots 1414 correspond to the number and position of the pushing blocks 133 of the pushing member 130, and the pushing blocks 133 of the pushing member 130 are inserted. In the slot 1414, the slot 1414 has a second abutment surface 1415, the socket groove 1413 is located on the outside of the claw member 141, and the socket grooves 1413 of the four claw members 141 are arranged to form an annular groove to receive the cluster member 142 together. The claw member 141 has a convex portion 1416 at the bottom. The convex portion 1416 extends away from the axis X. The claw member 141 further has an inclined abutment surface 1417 and a clamp. Part 1418, the oblique abutment surface 1417 is located inside the claw member 141, and the oblique abutment surfaces 1417 of the four claw members 141 are roughly arranged in a shape corresponding to the inner tapered surface of the tapered surface 1051 outside the ejector pin 100, and the clamping portion 1418 is located at the limit Between the bit portion 1411 and the convex portion 1416, the inside of the clamping portion 1418 is convex toward the axis X.

Please refer to Fig. 3 and Fig. 4. The jaw tool of this creation is assembled in the main shaft of the processing machine, and the workpiece is processed by holding the tool holder 290. The processing machine includes a frame 210, a spindle base, a spindle 230, and a broach control. Group, tool magazine 250 and tool magazine control group.

The frame 210 is an upright frame body, which extends upwards for assembling other components. The upper end of the frame 210 also has a scaffold 211 extending forward. Below the frame 210 may have a base and a processing table for processing. The workpiece is fixed.

The main shaft seat is arranged on the frame 210 and can be moved in the vertical direction for assembling other components. Among them, the main shaft seat includes a base 221 and a lifting group. The seat portion 221 is provided on the frame 210 and can move in the vertical direction. The lifting group includes The motor 2221, the screw 2222 and the screw seat 2223, the motor 2221 is provided and fixed to the frame 210, the screw seat 2223 is provided and fixed to the seat 221, the screw 2222 is connected to the motor 2221 and screwed to the screw seat 2223, and the screw 2222 can be driven by the motor 2221. When rotating in the forward / reverse direction, the screw seat 2223 and the seat portion 221 are driven to move up / down in the vertical direction.

The main shaft 230 is disposed on the seat 221 of the main shaft base and can be moved relative to the frame 210 with the seat 221. Preferably, the main shaft 230 can be assembled with a BT40 tool holder. Please refer to Figs. 3, 4 and 7 for the main shaft. 230 includes a main body 231, a rotating shaft 232, and a power pack 233. The main body 231 is fixed to the seat 221, and the rotating shaft 232 is rotatably provided in the main body 231. The jaw tool of this creation is provided in the rotating shaft 232. The bottom end of the rotating shaft 232 has a sipe 2321, and the sipe 2321 has a conical wall surface. The tool set 233 can be inserted, and the power set 233 is provided on the top of the main body 231. As shown in FIG. 4, the power set 233 is, for example, a motor, and the power set 233 is connected to the rotating shaft 232 to drive the rotating shaft 232 to rotate; in this embodiment In the middle, the power set 233 is located at the top of the main body 231, and it is a straight spindle. However, if the power set is set in the body and becomes a built-in type spindle as described in the TMW494667 patent, it is also necessary. The bottom end of the abutting section 105 of the ejector 100 penetrates the sipe 2321 and is separated from the pull bolt 291 of the handle 290 by a ejector gap. As shown in FIG. 7, the rotating shaft 232 further has a first inner surface 2322. And the second inner surface 2323, the diameter of the first inner surface 2322 is smaller than the diameter of the second inner surface 2323.

The broach control group includes a connection base 241, a rocker arm 242, a broach cam plate 243, a connecting rod 244, and a broach elastic member 245. Please refer to FIG. 3, FIG. 4 and FIG. 7. The connection base 241 is generally annular and is sleeved on the main body 231. It can slide in a vertical direction relative to the main body 231 and drive the connecting rod 244 to move together. The rocker 242 is rotatably provided. The seat portion 221 of the spindle seat can rotate relative to the seat portion 221 and can move in the vertical direction along with the seat portion 221. One end 2421 of the rocker 242 abuts against the top surface of the connection seat 241, and the other end 2422 faces the broach. The cam plate 243 extends. The broaching cam plate 243 is fixed to the frame 210 and has an abutting surface 2431. The abutting surface 2431 is located above the other end 2422 of the rocker arm 242. The connecting rod 244 is inserted into the rotating shaft 232. As shown in FIGS. 4 and 7, the outer threaded section 101 of the top rod 100 of the gripper tool is screwed to the screw hole 2441 at the bottom of the connecting rod 244. 244 linkage, so that the connecting rod 244 drives the ejector rod 100 to move in the rotating shaft 232, and the gripper group 140 can be moved by the ejector rod 100 when the ejector rod 100 moves, thereby clamping or loosening the knife handle inserted in the sipe 2321 The pull bolt 291 of 290 and the broach elastic member 245 can provide an elastic force to make the connecting seat 241 and the connecting rod 244 move upward and reset at any time, and then drive the ejector rod 100 to move upward and reset.

The tool magazine 250 is arranged on the scaffold 211 on the front side of the frame 210 and can swing relative to the frame 210 about its pivot axis 251. Please refer to FIG. 3, the tool magazine 250 has a plurality of ring-shaped tool holder brackets 252, 252 ', Each tool holder holder 252, 252 'is used to place and hold the tool holder 290 respectively. In this embodiment, the tool magazine 250 can be pivoted and moved relative to the frame 210, but the tool magazine is changed to be linearly movable or other There is no way to move people.

The tool magazine control group includes a tool magazine cam plate 261 and a tool magazine elastic member 262. The tool magazine cam plate 261 is provided with a seat 221 fixed to the spindle base, and can be moved in the vertical direction along with the seat 221. The tool magazine elastic member 262 is a tensile spring, and the two ends of the tool magazine cam plate 261 are respectively arranged in the tool magazine 250 and the frame 210. With its elastic force, one side of the tool magazine 250 is deflected toward the main shaft 230 at any time, and abuts against one surface of the tool magazine cam plate 261.

With the above device, when the user wants to process, as shown in FIG. 3, the knife holder 290 can be inserted and assembled into the sipe at the bottom end of the rotating shaft. At the same time, referring to FIG. 4, it can be clamped by the jaw group 140 of the jaw tool. Hold the pull bolt 291 of the tool holder 290, and use the motor 2221 to control the raising and lowering of the seat 221 of the spindle base. Further, the power set 233 is used to drive the rotating shaft 232 and the tool holder 290 to rotate for processing. At this time, the tool magazine 250 abuts against the tool magazine cam plate. The surface of 261 is located in the standby position. At the same time, referring to FIG. 7, the ejector lever 100 of the clamping jaw tool is located at the broach position, and the clamping jaw group 140 is closed and clamped by the pull bolt 291. The bottom end of the abutting section 105 of the ejector lever 100 and The top end of the pull bolt 291 of the handle 290 is separated by an ejector gap. Further, the tapered surface 1051 outside the ejector lever 100 is pushed against the inclined abutment surface 1417 of the claw member 141, and the clamping portions 1418 of the four claw members 141 The grip 291 of the handle 290 is clamped together, and the convex portion 1416 of the claw member 141 abuts against the first inner surface 2322 of the rotating shaft, so as to prevent the claw member 141 from spreading outward and unable to hold the handle 290.

Please refer to Figure 5. When the user wants to change the tool holder, the motor 2221 can be used to control the seat 221 of the spindle holder to rise, so that the spindle 230, the rocker arm 242 and the tool magazine cam plate 261 are also raised. The contour of the side against which the tool magazine 250 abuts gradually shrinks toward its bottom end, because the tool magazine 250 abuts against the tool magazine cam plate 261 and is affected by the elastic force of the tool magazine elastic member, it gradually swings close to the main shaft 230 and moves to the replacement. The knife position is such that one of the holder holders 252 of the tool magazine 250 abuts against and holds the holder 290.

On the other hand, during the ascent of the seat 221, the other end 2422 of the rocker arm 242 contacts and abuts against the abutment surface 2431 of the broach cam plate 243, and the rocker arm 242 is pushed by the abutment surface 2431. By turning, one end 2421 of the rocker arm 242 moves downward and presses against the connecting seat 241, as shown in FIG. 6, further drives the connecting rod 244 and the ejector rod 100 to move downward relative to the rotating shaft 232.

Please refer to FIG. 6 to FIG. 9. In the process that the connecting rod 244 drives the ejector rod 100 to move downward, as shown in FIG. 7, the ejector rod 100 is initially located in a broach position, and the clamping jaw group 140 is closed and clamped. Between the pull bolt 291 of the handle 290, the bottom end of the abutting section 105 of the ejector lever 100 and the top end of the pull bolt 291 of the handle 290 are separated by a knock gap.

Continuing the above, please continue to refer to FIG. 8. When the connecting rod 244 is driven by the connecting seat and drives the ejector rod 100 to move down together, the ejector rod 100 first moves to a ejector position, and the lower end of the ejector rod 100 abuts the section 105. When contacting the pull bolt 291 of the handle 290, the gripper group 140 is still in a closed state, and the handle 290 and the pull bolt 291 remain unmoved. Further, during the movement of the ejector rod 100 to the ejector position, The elastic member 120 is pushed and compressed by the positioning section 102 of the ejector 100. The elastic force of the elastic member 120 causes the pusher 130 to continuously abut against the claw member 141, and the ring groove 104 of the ejector 100 moves during the ejection of the ejector 100. As the clamping portion 14011 gradually approaches the limit portion 1411 of the claw member 141, the clamping jaw group 140 is still in a closed state. Even if the handle 290 is not tightly coupled to the main shaft due to some factors, the clamping jaw group 140 can prevent the handle 290 and its pull bolt 291 from being affected. Gravity moves downwards and stabilizes the position of the handle 290.

Continuing the above, please continue to refer to Figure 9. When the ejector lever 100 continues to move downward, the ejector lever 100 will move to a loose knife position, and the jaw group 140 will be opened to release the pull bolt 291 of the handle 290. At the same time The bottom end of the abutting section 105 of the ejector pin 100 pushes the abutment bolt 291 downward to move the handle 290 downward. Further, in the process of ejector lever 100 moving to the loosening position, the abutment member 130 is pushed. Affected by the elastic force of the elastic member 120 and continuously abutting against the claw member 141, the clamping claw group 140 moves downward to move the convex portion 1416 of the claw member 141 downward to the position of the second inner surface 2323 of the rotating shaft, and the claw member The limiting portion 1411 of 141 swings toward the ring groove 104 of the ejector pin 100 to accommodate and abut against the ring groove 104, and the second abutment surface of the claw member 141 moves toward the first abutment surface of the pushing member 130 and abuts against the first On the abutting surface, the convex portion 1416 of the claw member 141 swings outward and abuts against the second inner surface 2323 of the rotating shaft, so that the clamping jaw group 140 releases the pull bolt 291 of the handle 290.

Please refer to FIG. 8 and FIG. 9. In order to eject the handle 290 smoothly, the distance between the ejector position of the ejector 100 and the loose blade position is not less than the distance between the broach position and the loose blade position. 0.25 times, preferably, no more than 0.85 times, that is, the moving distance of the ejector rod 100 shown between the left half and the right half of FIG. 9 is between the left half of FIG. 8 and the right half of FIG. 9 The moving distance of the ejector 100 shown is between 0.25 times and 0.85 times. In other words, when the ejector 100 is located at the broach position, the vertical length of the ejector gap between the ejector 100 and the pull bolt 291 is the vertical length of the ejector 100 from the first 0.15 to 0.75 times the moving stroke of the broach position shown in the left half of FIG. 8 to the loose knife position shown in the right half of FIG. 9. Specifically, in this embodiment, the ejector lever 100 is moved from the broach position to The travel distance of the loose knife position is, for example, 6 mm, and the clearance of the top knife is 4.5 mm, 4 mm, 3.5 mm, 3 mm, 2.5 mm, 2 mm, 1.5 mm, or 1 mm. In the best case, the ejector clearance is between 2.5 mm and 3.5 mm, and the ejection stroke of the ejector lever 100 from the ejector position to the loose cutter position is, for example, 1.5 mm, 2 mm, and 2.5 mm. Centimeter, 3mm, 3.5mm, 4mm, 4.5mm or 5mm, preferably, the moving stroke of the top knife position to the loose knife position is between 2.5mm and 3.5mm. Therefore, the ejector lever 100 of the gripper tool of this creation can quickly contact the handle 290 when moving, and push the handle 290 out a certain distance, avoiding the ejection of the handle 290 without ejecting out, while reducing the position error of the handle and the position of the handle Uncertainty.

In this embodiment, the moving stroke of the ejector lever 100 from the broach position to the loose position is 6 mm, which is a general specification of the spindle applicable to the BT40 standard tool holder, but it is affected by the actual size error of each component. The actual movement stroke of the knife position may also be between 5.5 mm and 6.5 mm. The increase or decrease of the movement stroke error value may be absorbed by the movement stroke of the top knife position to the loose knife position.

Please refer to FIG. 6 and FIG. 10, while the tool holder 290 is ejected downward and the ejector rod 100 is moved downward with respect to the main shaft and its rotation axis, the seat 221 and the main spindle are moving upward. Preferably, the ejector rod 100 is opposite The speed of the downward movement on the rotation axis is the same as the speed of the spindle's upward movement, and the same size, which can keep the tool holder 290 relative to the tool magazine during the ejection process, which can improve the tool holder clamping time. Stability.

Please refer to Figure 10, after the tool holder 290 is pushed down and held by the tool holder holder 252 of the tool magazine 250, the seat 221 can be further raised to separate the tool holder from the spindle and then rotate the tool magazine, such as As shown in FIG. 11, the other tool holder to be used is aligned with the spindle, and the motor 2221 can be used to control the seat 221 to descend. As shown in FIG. 12, the tool holder is inserted into the rotation shaft.

And the tool magazine, rocker arm, connection base, connection rod, and ejector rod are all reset in the opposite direction, and returned to the positions shown in Figures 3 and 4, holding the tool holder with the gripper Pull bolts for continued processing.

With this, the above-mentioned processing machine with the clamping jaw tool of the present invention can use the ejector lever to push against the handle of the handle, and smoothly and surely eject the handle when loosening or changing the tool, even if the processing machine changes the tool after processing As a result, the tool holder is tightly combined with the main shaft, or the processing machine continuously changes tools, but the tool holder is not tightly connected to the main shaft. The clamping jaw tool of this creation can make the timing and position of the tool holder ejection tend to be consistent, which can be used for the tool holder of the tool magazine. Aligning the racks and holding the handle correctly and reliably helps the tool change process to proceed smoothly.

Based on the above, because the timing and position of the ejection of the tool holder can be accurately estimated, the seat of the spindle seat can be replaced when the tool holder is raised, or continuous operation can be smoothly and smoothly completed when the tool holder is inserted in the lower combination, without the need for specific steps. The tool holder holder of the tool magazine, such as decelerating or stopping in stages, holds the tool holder, which helps reduce the time required for tool change.

Summarizing the above description, this creation describes the jaw tool, which is suitable for assembling in the main shaft of the processing machine, so that the processing machine can perform the tool change reliably, smoothly and flexibly, with a lower tool change time or tool change delay, and can Improving the overall working efficiency of the processing machine is really what the processing industry and the machine tool industry are looking forward to. However, the above embodiments are only to explain and explain the technical content of this creation. The scope of patents of this patent shall be subject to the scope of patents mentioned later. .

100‧‧‧ Jack

101‧‧‧External thread section

102‧‧‧ positioning segment

103‧‧‧Slip

104‧‧‧ ring groove

105‧‧‧Conflict

1051‧‧‧ Outer tapered surface

120‧‧‧Elastic piece

130‧‧‧Pushing

131‧‧‧ perforation

132‧‧‧Top

133‧‧‧ push block

1331‧‧‧First Arrival

134‧‧‧ Management Department

140‧‧‧ Claw Set

141‧‧‧Claw

1411‧‧‧Limiting Department

1412‧‧‧Overhead

1413‧‧‧Socket

1414‧‧‧slot

1415‧‧‧ Second Arrival

1416‧‧‧ convex

1417‧‧‧ obliquely

1418‧‧‧Clamping section

142‧‧‧Cluster

143‧‧‧Gap

210‧‧‧ rack

211‧‧‧Yanjia

221‧‧‧Seat

2221‧‧‧Motor

2222‧‧‧Screw

2223‧‧‧Screw

230‧‧‧ Spindle

231‧‧‧ Ontology

232‧‧‧Shaft

2321‧‧‧Slot

2322‧‧‧First inside

2323‧‧‧ Second inside

233‧‧‧Power pack

241‧‧‧Connector

242‧‧‧ Rocker

2421‧‧‧One end

2422‧‧‧ the other end

243‧‧‧Broach cam plate

2431‧‧‧Abutment

244‧‧‧Connecting rod

2441‧‧‧Screw holes

245‧‧‧Broach elastic part

250‧‧‧ Magazine

251‧‧‧ Pivot

252, 252’‧‧‧ knife holder

261‧‧‧tool magazine cam plate

262‧‧‧One-tool magazine elastic parts

290‧‧‧tool

291‧‧‧ pull bolt

X‧‧‧ axis

Figure 1 is a perspective view of the claw tool.
Figure 2 is an exploded perspective view of the claw tool.
Figure 3 is a schematic side view of the processing machine.
FIG. 4 is a partially enlarged sectional view of FIG. 3.
Figure 5 is a schematic diagram of the operation of Figure 3.
Figure 6 is a partial enlarged cross-sectional view of the ejector lever of the creative gripper tool when it is moved to the loose knife position.
Figure 7 is a schematic cross-sectional view of the claw tool and the handle.
Fig. 8 is a schematic diagram of the comparison between the ejector position and the ejector position of the ejector of the clamping jaw tool.
Figure 9 is a schematic diagram of the comparison between the ejector position and the ejector position of the ejector of the clamping jaw tool.
Figures 10 to 12 are schematic diagrams of the continuous operation of the processing machine.

Claims (14)

A clamping jaw tool is suitable for being assembled in a spindle of a processing machine. The clamping jaw tool is used for clamping a handle. The clamping jaw tool comprises:
A jack, the jack has a sliding section, an annular groove and an abutting section, the annular groove is located between the sliding section and the abutting section, and the abutting section can abut the knife handle;
An elastic member, the elastic member is sleeved on the ejector rod;
A clamping jaw group, the clamping jaw group has a plurality of claw members and a bundle member, the plurality of claw members surround the ejector rod, the plurality of claw members can collectively clamp the knife handle, and each of the claw members has a limiting portion , The ring groove of the ejector rod can accommodate the limiting portion, the limiting portion has a set of sockets, and the sockets receive the bundle member;
Wherein, when the ejector rod is located at a broach position, the clamping jaw group clamps the handle, and a ejector gap is separated between the bottom end of the abutting section of the ejector rod and the top end of the holder. The gap is between 1 mm and 4.5 mm. When the ejector pin is in a ejector knife position, the bottom end of the abutting section of the ejector pin contacts the knife handle. When the ejector pin is in a loose knife position, The jaw set releases the handle, and the distance between the broach position and the loose position is between 5.5 mm and 6.5 mm. The gripper tool according to item 1 of the patent application scope, wherein the distance between the broach position and the loose blade position is 6 mm, and the distance between the ejector position and the loose blade position is 1.5 mm Between 5 and 5 mm. The gripper tool according to item 2 of the patent application range, wherein the ejector gap is between 2.5 mm and 3.5 mm, and the distance between the ejector position and the loose cutter position is between 2.5 mm and Between 3.5 mm. According to the gripper tool according to item 1 of the scope of patent application, wherein the abutting section of the ejector rod further has an outer tapered surface, the outer diameter of the outer tapered surface gradually decreases toward the ring groove, and each of the jaws The inside of the piece further has an oblique abutment surface, which can abut against the outer tapered surface. According to the gripper tool according to item 1 of the patent application scope, wherein the ejector rod further has an external thread section and a positioning section, the external thread section can be screw-locked to the main shaft, and the positioning section is located between the external thread section and the Between slips. The gripper tool according to item 5 of the patent application, wherein the upper end of the elastic member abuts against the positioning section. The jaw tool according to item 1 of the patent application scope, wherein the elastic member is a compression spring or a ripple spring. According to the gripper tool of item 1 of the patent application scope, each of the claw members further has a convex portion at the bottom, the convex portion extends away from an axis of the ejector rod, and the convex portion abuts against the main shaft. The gripper tool according to item 1 of the patent application range, wherein each of the gripper members further has a gripping portion, and an inner side of the gripping portion protrudes toward an axis of the ejector rod, and the gripper of the plurality of gripper members The parts can hold the tool holder together. The jaw tool according to item 1 of the patent application scope, wherein the bundle member is an elastic collar or ring spring. The gripper tool according to item 1 of the patent application scope, wherein the gripper tool further has a pushing piece, the pushing piece has a perforation, a top surface and a pushing block, and the sliding of the pushing rod A segment is movably inserted into the perforation of the pushing member, a lower end of the elastic member abuts against the top surface, and the pushing block extends downward from the pushing member. The jaw tool according to item 11 of the application, wherein the pushing member further has a pipe portion, and the elastic member surrounds the sliding section of the ejector and the periphery of the pipe portion of the pushing member. According to the gripper tool according to item 11 of the scope of patent application, wherein the limiting portion of each of the claw members further has a top surface, the top surface is recessed downward to form a slot, and the slot accommodates the pusher. The push-to-buy block. The gripper tool according to item 13 of the patent application range, wherein the pushing block of the pushing member further has a first abutting surface, the first abutting surface is inclined to an axis of the ejector rod, and the The slot further has a second abutting surface, and the first abutting surface can abut against the second abutting surface.