JP3244777U - Tool change mechanism for processing equipment - Google Patents

Abstract

An object of the present invention is to provide a tool exchange mechanism for processing equipment that is inexpensive and easy to manufacture. [Solution] It is applied to processing equipment that serves as both an upright type and a horizontal type, and a tool exchange mechanism can change the position between two positions, and includes an equipment main body 10, a tool exchange arm 20, and a braking means. Contains 30. The tool exchange arm is coupled to the equipment body and has a tool arm. The tool arm is provided with a tool clamping group at both ends for engaging a tool rod, and the braking means includes a movable cylinder and two braking rods 32, the movable cylinder is connected to the outside of the rotating shaft 201 in the tool exchange arm. It is provided to cover and reciprocates along the center line. The two braking rods are provided so as to span the outside of the rotating shaft, and rotate the tool arm in conjunction with the rotating shaft. The two braking rods achieve a structure that allows the tool rod to lock and release the tool. [Selection diagram] Figure 1

Description

The present invention relates to an automatic tool change mechanism, and more particularly to a tool change mechanism for vertical or horizontal processing equipment.

An automatic tool change mechanism of a processing device mainly transfers tools necessary for processing from a magazine to a holding mechanism of a spindle. The processing equipment may be divided into upright type processing equipment and horizontal type processing equipment, depending on the form in which the main shaft is attached. Furthermore, by replacing the gripping head of the main spindle, it is possible to realize a processing device that can be used both as an upright type and a horizontal type.

Among them, the tool change arm, which is applied to the tool change mechanism of both vertical and horizontal type machining equipment, is a tool change arm that is used to control the movement between two fixed points, as it is applied to different structures for changing tools. Must be able to rock and transition. The two fixed points are generally for the pivoting axis of the tool changing arm in the vertical and horizontal directions. Therefore, the tool clamping mechanism at both ends of the tool changing arm must have a structure that locks and releases the tool with good quality and stability. It will also be necessary to control according to different functions. This is especially desirable when performing tool changing work that involves horizontal machining.

Known forms of controlling the tool clamping arrangement include a complex oil passage inside the tool changing arm and controlling whether or not hydraulic fluid is poured based on the opening and closing of a solenoid valve. Aims to control independently to lock and release. However, the combination of the electromagnetic valve and the oil passage increases cost, complicates the structure, and increases the difficulty of manufacturing the structure. Therefore, the conventional tool exchange mechanism is not yet perfect, and there are still areas that need improvement.

In view of this, it is an object of the present invention to provide a tool exchange mechanism for processing equipment that is inexpensive and easy to manufacture.

In order to achieve the above object, the present invention provides a tool changing mechanism for processing equipment, which includes a device body, a tool changing arm, and a braking means. The tool exchange arm includes a tool arm and a rotating shaft. The tool arm has different ends and each end is provided with a respective tool clamp group. Each of the tool clamp groups includes at least one tool clamp, and the at least one tool clamp has both ends and constitutes a contact end and a tool abutment end, respectively. The rotating shaft has one end connected to the tool arm and the other end boring into the device body. The rotation axis is interlockable to rotate the tool arm about a centerline when controlled. The braking means includes a movable cylinder and two braking rods, and the movable cylinder is provided to cover the rotating shaft and is movable between a first position and a second position along the center line. be. The movable cylinder includes an annular tip surface, and the annular tip surface has a high position area and a low position area due to a height difference. The two braking rods are provided outside the rotating shaft so as to be movable in parallel with the center line, and rotate with rotation of the tool arm to rotate around the rotating shaft. It can be rotated. Each of the braking rods has opposite ends, each forming a resisting end and a pushing end.

When the movable cylinder is located at the first position, at least one resistance end of the two braking rods is not in contact with the annular tip surface. When the movable cylinder is located at the second position, the resisting end of one of the two braking rods contacts the high position region of the annular tip surface, and the extruding end thereof contacts the high position region of the annular tip surface. While the contact end of the at least one tool clamp in the tool clamp group is in contact with and pushed out, the other resisting end of the two braking rods contacts the low position region of the annular tip surface, and the pushing end thereof is pushed out. The contact end of the at least one tool clamp in the other tool clamp group does not come into contact with the contact end and is not pushed out.

The effect of the present invention is that, by using the feature that the high position area and the low position area of the annular tip surface have a height difference, a structure that locks and releases the tool at the same time during the tool changing operation is created. The point is that it can be achieved.

1 is a perspective view of a processing device including a tool changing mechanism according to a preferred embodiment of the present invention; FIG. Figure 2 is a side view of the processing equipment shown in Figure 1 showing the tool change mechanism in the processing equipment in an upright position; FIG. 2 is a side view of the processing equipment shown in FIG. 1 illustrating that the tool change mechanism in the processing equipment is located in a horizontal position. FIG. 3 is an exploded view of the tool changing mechanism according to the preferred embodiment of the present invention; FIG. 5 is an exploded view of the tool exchange arm and part of the braking means in the tool exchange mechanism shown in FIG. 4; FIG. 5 is a sectional view showing a tool changing arm in the tool changing mechanism shown in FIG. 4; 7 is a cross-sectional view taken along the direction 7-7 in FIG. 6. FIG. 5 is an exploded view of part of the braking means in the tool changing mechanism shown in FIG. 4. FIG. FIG. 9 is a side view showing the shaft of the braking means shown in FIG. 8; 9 is an exploded view of a part of the structure of the braking means shown in FIG. 8. FIG. FIG. 11 is a view showing the front end surface of the movable cylinder in the braking means shown in FIG. 10; 3 is a top view showing a tool exchange mechanism in the processing equipment shown in FIG. 2. FIG. 13 is a cross-sectional view taken along the direction 13-13 shown in FIG. 12, showing the tool change mechanism in an upright position and the movable cylinder in the braking means in a first position; FIG. It is. FIG. 14 is a sectional view taken along the direction 14-14 in FIG. 13. FIG. 14 is a diagram similar to FIG. 13 showing that the movable cylinder in the braking means is located in the second position. 16 is a cross-sectional view taken along the direction 16-16 in FIG. 15. FIG. FIG. 6 is a sectional view showing the tool change mechanism in a horizontal position and the movable cylinder in the braking means in a second position;

In order to more clearly explain the present invention, preferred embodiments will be described in detail below with reference to the drawings. As shown in FIGS. 1 to 4, a tool change mechanism 100 according to a preferred embodiment of the present invention is located on the main axis of the processing equipment, taking as an example a processing equipment that is both an upright type and a horizontal type. This is for exchanging the tool in the magazine with the tool in the magazine. The tool change mechanism 100 can swing about the axis L1 between an upright position PV shown in FIG. 2 and a horizontal position PH shown in FIG. 3 by interlocking with the drive mechanism 200. In this embodiment, the tool exchange mechanism 100 includes a device main body 10, a tool exchange arm 20, a braking means 30, and a motor 50. However, the device main body 10 is connected to a rotating shaft 201 in the drive mechanism 200. The rotating shaft 201 has the axis L1 passing through the device main body 10. When the rotating shaft 201 is controlled to rotate, the rotating shaft 201 is synchronously interlocked so that the tool changing mechanism 100 swings. In addition, since the driving mechanism 200 is not an important consideration in the present invention, it will not be repeatedly described here.

As shown in FIGS. 5 to 7, tool exchange arm 20 includes a tool arm 21 and a rotating shaft 22. As shown in FIGS. The tool arm 21 is provided with tool clamping groups at different ends thereof. The rotating shaft 22 has one end fixedly connected to the center portion of the tool arm 21, and the other end fixedly connected to the interlocking shaft 22b via a connecting shaft sleeve 22a (see FIG. 8). By being connected, the device main body 10 is bored. The motor 50 is coupled to the device main body 10, and is used to control the rotating shaft 22 in conjunction with the tool arm 21 to rotate about the center line L2.

Both ends of the tool arm 21 are a tool holding part 21A and a tool holding part 21B, respectively, with openings facing outward. Each of the tool clamping parts has a tool clamping plate 21a integrally formed, and a lateral groove 21b is provided on the opposite side of each tool clamping part facing the tool clamping plate 21a. At the bottom of the groove 21b, a receiving hole 21c that does not penetrate the tool arm 21 is installed along the horizontal direction. Further, on both sides of the portion of the tool arm 21 that is connected to the rotating shaft 22, bored holes 21d are provided which pass through the tip and bottom surfaces in the vertical direction. Each tool clamping group includes an elastic portion 23, a tool clamp 24, and a shaft pin 25, respectively. Among them, the elastic part 23 was placed in the receiving hole 21c in advance. The tool clip 24 is placed in the side groove 21b. The shaft pin 25 passes through the tool arm 21 and the tool clip 24, so that the tool clip 24 can swing while rotating about the shaft pin 25 as a fulcrum. Further, the tool clip 24 has a tool contact end 24a and a contact end 24b at both ends with the shaft pin 25 as a boundary. The elastic portion 23 has one end in contact with the bottom of the receiving hole 21c, and the other end in contact with a portion of the tool clip 24 between the shaft pin 25 and the contact end 24b. When the elasticity from the elastic portion 23 acts on the tool clip 24, the tool abutting end 24a of the tool clip 24 is maintained close to the tool clip plate 21a.

When the tool rod T coupled with the tool is advanced into the clamping space S formed by the tool clamping plate 21a and the tool abutting end 24a of the tool clamp 24, the tool rod T is connected to the tool abutting end 24a of the tool clamping plate 21a. By contacting and pushing out the tool rod 24a, the tool rod T can be smoothly advanced into the holding space S after the tool clip 24 is slightly rotated and swung. When the tool rod T enters the clamping space S, the tool clamp 24 engages its tool abutting end 24a with the tool rod T due to the elasticity from the elastic part 23, and The tool rod T can be stably held. The configuration for realizing the clamping of the tool rod T is configured by disposing both a tool clamping plate 21a formed integrally and a tool clamp 24 that can swing while rotating. However, in reality, the tool arm may have two side grooves arranged symmetrically at one end in the left-right direction. Similarly, there may be two tool clips, each of which is pin-joined to the side groove, thereby engaging the tool rod between the two tool clips.

The braking means 30 includes a rotary disk 31 , two braking rods 32 , two reset parts 33 , two bottom covers 34 and two top covers 35 . The rotary disk 31 is maintained at the same height, is provided to cover the outside of the rotary shaft 22, and is rotatable about the rotary shaft 22. In this embodiment, the rotary disk 31 has a hollow portion 31a and two through holes 31b located on both sides of the hollow portion 31a. The two braking rods 32 each have a long bar body 32a, a connecting means 32b, and a braking block 32c. One end of each of the two long rod bodies 32a passes through the bottom lid 34 and the through hole 31b in the rotary disk 31, and then is connected to the connecting means 32b, while the other end is connected to the braking member 32b. Connected to block 32c. Since the bottom cover 34 is fixedly connected to the bottom surface of the tool arm 21, the brake block 32c is located in the drilled hole 21d of the tool arm 21. As described above, in the braking rod 32, the connecting means 32b and the braking block 32c located at both ends are located separately on both sides of the rotary disk 31. The braking block 32c constitutes an extruded end according to the present invention, and the connecting means 32b constitutes a resistive end according to the present invention. In addition, the connecting means 32b and the brake block 32c are separated from the elongated bar body 32a and are connected thereto to provide exchangeability.

The two reset parts 33 are springs, and are respectively installed in the drill holes 21d. The two upper lids 35 are fixedly connected to the distal end surface of the tool arm 21, and each restricts the reset portion 33 to the drilled hole 21d. The reset part 33 applies a pushing force to the brake rods 32, thereby maintaining each of the brake rods 32 to move outward. As can be seen from the above, the two combined braking rods 32 are mounted on the outside of the rotating shaft 22 in such a manner that they are movable in parallel to the center line L2 by the rotating disk 31. When the tool arm 21 is rotating, the two braking rods 32 interlock with the rotary disk 31, so that the tool arm 21 rotates around the rotary shaft 22.

As shown in FIG. 8, the braking means 30 further includes a shaft tube 36, a movable cylinder 37, a support tube 38, and a guide plate 39. The shaft tube 36 is attached inside the movable cylinder 37. For convenience of explanation, the structure of the shaft tube 36 will be explained first, and then the movable cylinder 37 will be explained below. Among them, the shaft tube 36 has a plurality of through holes 36a passing through the tip end surface and the bottom surface, and has an annular portion 36b projecting along the radial direction on its outer circumferential surface. Referring again to FIG. 9, as shown, a passage 361 and a passage 362 that do not communicate with each other are provided inside the shaft tube 36, and both ends of the two passages are respectively connected to a first end port. This is the second end. Among them, a first end 361a of the passage 361 and a first end 362a of the passage 362 are located at the bottom of the shaft tube 36, and can communicate with an external pressure source (not shown) through the connection port 40, respectively. The second end port 361b of the passage 361 and the second end port 362b of the passage 362 are formed on the outer peripheral surface of the shaft tube 36, and the second end port 361b and the second end port 362b are located separately on both sides of the annular portion 36b. .

The movable cylinder 37 is movable along the center line L2 with respect to the shaft tube 36. Referring to FIG. 10, as shown, the movable cylinder 37 according to the present embodiment includes an annular elevating seat 371, a cylinder pipe 372, and a guide lid 373. When assembling, first install the cylinder pipe 372 so as to cover the shaft pipe 36, and then sandwich the cylinder pipe 372 in the vertical direction between the elevating seat 371 and the guide lid 373. A plurality of screws 374 pass through each of the through holes 373a in the guide lid 373 and are locked into corresponding screw holes 371a in the elevating seat 371. Then, the cylinder pipe 372 can be fixedly connected between the elevating seat 371 and the guide cover 373. At the same time, the interior of the movable cylinder 37 is divided into a first space S1 (see FIG. 13) and a second space S2 (see FIG. 15) that do not communicate with each other via the annular portion 36b of the shaft tube 36. That is, the space between the guide lid 373 and the annular portion 36b constitutes the first space S1, and the space between the elevating seat 371 and the annular portion 36b constitutes the second space S2. do. Furthermore, the second end 361b of the passage 361 communicates with the first space S1, and the second end 362b of the passage 362 communicates with the second space S2.

The tip end surface of the elevating seat 371 in the movable cylinder 37 is further designed as an annular tip surface 375 having a change in head and undulation in the height direction. As shown in FIGS. 10 and 11, the annular tip surface 375 has the center C as the apex and defines the range of the central angle θ of 90 to 150 degrees as the low position region 375a. The other part becomes the high position area 375b. In this embodiment, an example in which the central angle θ is 120 degrees will be described. The low-position region 375a has a curved surface that is gradually recessed toward the center, while the high-position region 375b has a flat surface. The center point (that is, θ=60 degrees) of the curved surface forming the low position area 375a is the lowest point with respect to the plane forming the high position area 375b.

As shown in FIG. 8, the support tube 38 is a long cylindrical tube, and has a protruding shoulder 38a on the tube body and an external flange 38b on the bottom. Further, the external projecting edge 38b is provided with a plurality of through holes 38c. The guide plate 39 has a hollow portion 39a for being installed so as to cover the support tube 38. The guide plate 39 has a plurality of through holes 39b provided on the outer periphery of the hollow portion 39a and two wing portions 39c extending outward. Each wing portion 39c is provided with a through hole 39d. When assembling, first place the guide plate 39 between the shaft tube 36 and the support tube 38, and then insert one end of a plurality of long rod-shaped screws 41 into the shaft tube 36. It passes through the through hole 36a, the through hole 39b of the guide plate 39, and the slip hole 38c of the support tube 38, and is locked to the device main body 10. Thereby, the shaft tube 36 and the support tube 38 are fixedly and immovably connected to the device main body 10. As the screws 41 are screwed together and tightened, the bottom of the shaft tube 36 brings the guide disk 39 into firm contact with the external flange 38b, preventing the guide disk 39 from rotating. become. The guide plate 39 then passes through the through holes 39d and locks with the guide rods 43 via the two screws 42, and each of the guide rods 43 respectively passes through the through holes 373b in the guide lid 373. go through. Thereby, the purpose of preventing the movable cylinder 37 from unduly rotating with respect to the shaft tube 36 can be achieved.

In the above, the assembled support tube 38 is installed so as to cover the outside of the rotating shaft 22, and the bottom part is installed so as to be fixed to the device main body 10, while the tip part is connected to the tool arm 21. The rotation of the tool arm 21 is not hindered. The shaft tube 36 is installed to cover the outside of the support tube 38. The movable cylinder 37 is movable with respect to the shaft tube 36 but cannot rotate, and is installed to cover the shaft tube 36 . The two braking rods 32 are located between the tool arm 21 and the lifting seat 371 of the movable cylinder 37. Note that a shaft 44 (see FIG. 7) is installed and covered between the shoulder portion 38a of the support tube 38 and the rotary disk 31. Thereby, the purpose of maintaining the rotary disk 31 at the same height and being rotatable about the rotary shaft 22 can be achieved.

From the above, when the tool change mechanism 100 according to the present embodiment is applied to both vertical and horizontal processing equipment, it can be used in the upright position PV (see FIG. 2) and the horizontal position PH (see FIG. 3). ). Hereinafter, the interlocking relationship between the tool exchange arm 20 and the braking means 30 will be explained by applying the tool exchange mechanism 100 to an example in which machining is performed in an upright manner or in a horizontal manner.

First, referring to FIGS. 2, 12 to 14, as shown, the tool changing mechanism 100 is located at the upright position PV because it is applied to upright machining. In this process, the movable cylinder 37 is moved far away from the tool arm 21 in order to smoothly engage the upright tool rod T with the tool clamping portion of the tool arm 21. It needs to be controlled so that it remains located on one side. When the two braking rods 32 are pushed downward by the respective reset portions 33, the braking rods 32 have sufficient space to move downward, and the braking block 32c allows the tool clip 24 to rotate. It can be linked to move away from the swinging path while moving. Furthermore, it is possible to ensure that the tool clamp 24 has a space in which it swings while rotating, so that the tool rod T can advance through the clamping space S. It is defined that the movable cylinder 37 in the above state is located at the first position P1. At this time, the tool clip 24 is acted upon by the elastic force from the elastic portion 23, but is still maintained in a state where it moves, rotates, and swings (see FIG. 6). After the tool rod T enters the clamping space S, it is supported by the tool clamping plate 21a and the tool clamp 24, and is prevented from falling due to its own gravity. In addition, the tool clamp 24 continuously moves its tool abutting end 24a closer to the tool clamp plate 21a due to the elasticity from the elastic part 23, and clamps the tool rod T therewith. Since the centrifugal force is set to be greater than the centrifugal force on the tool rod T when the tool arm 21 rotates, the tool rod T is effectively held between the tool clamping plate 21a and the tool clamp 24. . Further, when the tool rod T advances horizontally through the clamping space S and comes into contact with the tool abutting end 24a, the tool clamp 24 is deflected and compressed to deform the elastic part 23. The tool rod T can smoothly advance through the clamping space S.

In the above, the braking block 32c at one end of the braking rod 32 moves to a fixed point position below the movable cylinder 37, which is set to ensure that the tool clip 24 does not interfere with the rotation and swinging of the tool clip 24. It is preferable that the connecting means 32b of the two braking rods 32 do not come into contact with the annular tip surface 375 of the movable cylinder 37. However, considering that the tool change mechanism 100 is also applied to horizontal machining, the first position P1 of the movable cylinder 37 according to this embodiment is set to the position shown in FIG. , the high position region 375b of the annular tip surface 375 of the movable cylinder 37 is held on the same side as the tool exchange mechanism 100 while rotating and swinging in the same direction. Taking the example of FIG. 13, when the tool exchange mechanism 100 swings while rotating to the left, the high position region 375b of the annular tip surface 375 is designed to be on the left side. Further, for convenience of explanation, the two brake rods will be referred to below as a first brake rod 32A and a second brake rod 32B, respectively. Therefore, when the movable cylinder 37 is located at the first position P1, the high position region 375b of the annular tip surface 375 slightly contacts the connecting means 32b of the first braking rod 32A, while the annular tip surface 375 does not contact the connecting means 32b of the second braking rod 32B. In addition, in this embodiment, the mode for controlling and realizing the movement of the movable cylinder 37 to the first position P1 is to input high pressure gas and move it along the passage 361 to the first space S1. This is done by pouring (and simultaneously discharging the gas in the second space S2 from the passage 362). Based on the fact that the shaft tube 36 is fixed and cannot be moved, when the internal pressure of the first space S1 is higher than the internal pressure of the second space S2, the movable cylinder 37 is moved downward by high pressure gas. and can be pressed so as to remain at the first position P1.

When the tool exchange mechanism 100 is applied to horizontal machining and tool exchange work, the tool exchange mechanism 100 separates from the magazine while maintaining the upright position PV, and When approaching the main axis of the processing equipment, first, the movable cylinder 37 of the braking means 30 is moved in the direction of the tool arm 21 to a fixed point under control, and then the tool change mechanism 100 is moved to the horizontal position PH (Fig. (see 3). The fixed point at which the movable cylinder 37 moves in the direction of the tool arm 21 is defined as a second position P2 (see FIG. 15), and the movable cylinder 37 is controlled to move to the second position P2. Similarly, this embodiment employs input of high pressure gas to push the movable cylinder 37, but the difference from the above is that at this time, high pressure gas is input along the passage 362. into the second space S2 (at the same time, the gas in the first space S1 is discharged from the passage 361). Similarly, based on the fact that the shaft tube 36 is fixed and cannot be moved, if the internal pressure of the second space S2 is greater than the internal pressure of the first space S1, the movable cylinder 37 is moved by high pressure gas. It can be pressed so as to move upward and remain at the second position P2.

The annular tip surface 375 has a height difference between the low position area 375a and the high position area 375b, so when the movable cylinder 37 is moving upward, the high position area 375b of the annular tip surface 375 continuously pushes the first braking rod 32A to move upward, and when the braking block 32c of the first braking rod 32A comes into contact with the contact end 24b (see FIG. 16), the tool clip 24 is unable to swing while rotating, and the tool rod T is firmly clamped by both the tool abutting end 24a of the tool clip 24 and the tool clamping plate 21a, and the tool is locked with respect to the tool rod T. can be achieved. At the same time, the lower region 375a is in contact with the connecting means 32b of the second brake rod 32B, but does not push the second brake rod 32B to move upward. Therefore, the brake block 32c of the second brake rod 32B is maintained not in contact with the contact end 24b, as shown in FIG. 14, by the pushing force from the reset part 33. At this time, the brake block 32c of the second brake rod 32B does not interfere with the tool clip 24 swinging while rotating, but the tool clip 24 located at this location is moved by the elasticity from the elastic portion 23 to prevent the tool clip 24 from rotating and swinging. T still engaged.

Only when the movable cylinder 37 reaches the second position P2, the tool changing mechanism 100 is controlled to swing to the horizontal position PH. As shown in FIG. 17, at this time, although the opening of the tool holding part 21A located at a lower position in the tool arm 21 is directed downward, the tool holding part 24 located at the above position is Since the tool is locked with respect to the tool rod T provided in the horizontal direction by the extrusion from the first braking rod 32A, it is possible to prevent the tool rod T from falling out from the tool holding portion 21A. can. At the same time, since the opening of the tool holding part 21B located at a high position in the tool arm 21 is directed upward, it is convenient to place the tool rod T in the main shaft of the processing equipment there. Since the tool rod T is supported by the tool holding part 21B, it will not fall due to its own gravity, and the elasticity of the elastic part 23 in the tool holding part 21B will keep it in position at the location. The tool rod T now in a stable state.

When the tool arm 21 is controlled to rotate by 180 degrees in order to perform the work of exchanging tools, the first braking rod 32A and the second braking rod 32B are rotated as the tool arm 21 rotates. The first brake rod 32A and the second brake rod 32B are rotated around the rotating shaft 22 according to a circular trajectory, and due to the pushing force from the two reset parts 33, the resistive end (that is, the connecting means) of the first brake rod 32A and the second brake rod 32B is 32b) is maintained such that it remains in contact with said annular tip surface 375 at all times. In the process of converting from the low position of the tool holding part 21A to the high position (the tool holding part 21B, which is originally located at a high position, is converted to a low position), the first braking rod 32A and the second braking rod 32B and will convert the position synchronously. That is, the resistive end of the first brake rod 32A slides into the low position area 375a along the high position area 375b, and the tool can be gradually released from the tool holding part 21A. The resistive end of the second braking rod 32B moves from the lowest point in the low position area 375a to the high position area 375b, thereby locking the tool in the tool holding part 21B. Due to the above structure, when the tool arm 21 is rotating, the tool clamping part 21A and the tool clamping part 21B can timely release or lock the tool with respect to the horizontally provided tool rod T. In addition, it is possible to ensure that the work of exchanging tools is carried out smoothly.

As can be seen from the above, when the tool change mechanism 100 according to the present embodiment is applied to a machining device that has both an upright type and a horizontal type, it is possible to determine whether machining is performed in an upright type or horizontally. Regardless of whether the tool rod T is machined using a formula, a structure for locking or releasing the tool can be effectively realized. In addition, in this embodiment, the means for controlling and realizing the movement of the movable cylinder 37 between the first position P1 and the second position P2 is controlled by air pressure so as to be green and environmentally friendly. However, if necessary, hydraulic pressure may be used. In addition, a shaft or a sealing part may be installed between the tool changing arm 20 and each component of the braking means 30, depending on the installation necessity, to ensure smoothness when the component is in operation. An excellent sealing effect may be ensured. To explain again, although the tool clip 24 according to the above embodiment was designed to swing while rotating, the tool clip was actually designed to be movable back and forth in a straight line. This may achieve the purpose of locking and releasing the tool.

The above description is merely a preferred embodiment of the present invention, and it goes without saying that any equivalent substitutions made based on the specification of the present invention and the claims of the utility model registration fall within the scope of the present invention. stomach.

100 Tool exchange mechanism 10 Equipment main body 20 Tool exchange arm 21 Tool arm 21A, 21B Tool holding part 21a Tool holding plate 21b Side groove 21c Receiving hole 21d Drilling hole 22 Rotating shaft 22a Connection shaft sleeve 22b Interlocking shaft 23 Elastic part 24 Tool Pincer 24a Tool abutting end 24b Contact end 25 Axis pin 30 Braking means 31 Rotating disk 31a Hollow part 31b Through hole 32 Braking rod 32a Long bar body 32b Connection means 32c Braking block 33 Reset part 34 Bottom cover 35 Upper cover 36 Axis tube 36a Through hole 36b Annular part 361, 362 Passage 361a, 362a First end port 361b, 362b Second end port 37 Movable cylinder 371 Elevating seat 371a Screwing hole 372 Cylinder pipe 373 Guide lid 373a Through hole 373b Through hole 374 Screw 375 Annular tip surface 37 5a Low position area 375b High position area 38 Support pipe 38a Shoulder portion 38b External flange 38c Passing hole 39 Guide plate 39a Hollow portion 39b Passing hole 39c Wing portion 39d Passing hole 40 Connection port 41 Screw 42 Screw 43 Guide rod 44 Shaft 50 Motor 200 Drive mechanism 201 Rotating axis C Center of circle θ Central angle L1 Axis line L2 Center line PV Upright position PH Horizontal position S Clamping space S1 First space S2 Second space T Tool rod

Claims (10)

The main body of the device,
The tool arm includes a tool arm and a rotating shaft, and the tool arm has different ends and a respective tool clamp group is provided at each end, and each tool clamp group includes at least one tool clamp, and the at least one tool The scissors have both ends and constitute a contact end and a tool abutting end, respectively, and the rotation shaft has one end connected to the tool arm, and the other end bored through the device body and connected to the tool arm. a tool change arm, the rotation axis being interlockable to rotate the tool arm about a centerline when controlled;
The movable cylinder includes a movable cylinder and two braking rods, the movable cylinder is disposed to cover the rotating shaft and is movable between a first position and a second position along the center line, and the movable cylinder has an annular tip surface, the annular tip surface is divided into a high position area and a low position area by a height difference, and the two braking rods are movable in parallel with the center line. The braking rod is installed so as to hang on the outside of the rotating shaft and is rotatable around the rotating shaft as the tool arm rotates, and each of the braking rods has both ends and a resistance end and a resistive end. comprising a braking means constituting the extrusion end;
When the movable cylinder is in the first position, at least one resistance end of the two braking rods is not in contact with the annular tip surface, and the movable cylinder is in the second position. If the resisting end of one of the two braking rods is in contact with the high position region of the annular tip surface, and the protruding end thereof is in contact with the at least one tool clamp of the tool clamp group. another resistance end of the two braking rods comes into contact with the low-position region of the annular tip surface, and the extruded end contacts the at least one tool clamp of the other tool clamp group. A tool changing mechanism for processing equipment, characterized in that the tool does not come into contact with the contact end of the tool and is not pushed out. The tool changing arm is configured such that the at least one tool clamp in each of the tool clamp groups is swingable while rotating around a fulcrum, and when the movable cylinder is located at the first position, A resisting end of one of the braking rods contacts a high region of the annular tip surface, while a resisting end of the other braking rod does not contact a low region of the annular tip surface; When the movable cylinder is located at the second position, the at least one tool clip is in a state where it is unable to swing while rotating due to contact with the extruding end of the brake rod in the high position region. , wherein the at least one other tool clip is in a state where it cannot swing while rotating by contacting the extruded end of the braking rod in the low position region. tool change mechanism for processing equipment. The braking means includes a shaft tube, the shaft tube is provided to cover the rotating shaft and is fixedly connected to the device body,
The movable cylinder is provided to cover the outside of the shaft tube,
The axial tube has an annular portion protruding along the radial direction on the outer peripheral surface, and the annular portion divides the internal space of the movable cylinder into a first space and a second space that do not communicate with each other, When the internal pressure of the first space is greater than the internal pressure of the second space, the movable cylinder is located at the first position, and the internal pressure of the second space is greater than the internal pressure of the first space. 3. The tool change mechanism for processing equipment according to claim 2, wherein the movable cylinder is located at the second position when the pressure is greater than the pressure. The movable cylinder is provided so as to cover the outside of the shaft tube in an immovable manner,
The shaft tube is provided with two passages therein, each of the two passages has a first end port for communicating with an external pressure source, and each of the two passages has a second end port. Claim 3, wherein the second end of one of the passages communicates with the first space, and the second end of the other passage communicates with the second space. The tool change mechanism of the processing equipment described in . The braking means includes a support tube, the support tube is installed so as to cover the rotating shaft, one end is fixedly connected to the equipment body, and the other end is connected to the support tube by the tool arm. connected to the tool arm so as to be rotatable relative to the tool arm;
4. The tool exchange mechanism for processing equipment according to claim 3, wherein the shaft tube is installed to cover the outside of the support tube and is fixedly connected to the support tube. Each of the tool clamp groups includes an elastic part and a shaft pin, the resilient part is installed inside the tool arm, and the shaft pin is configured to drill into the at least one tool clamp, and the at least one tool clamp The pincer is swingable while rotating about the shaft pin as a fulcrum,
The elastic portion provides elasticity that acts on the at least one tool clip to maintain a contact end of the tool in the at least one tool clip to move in a predetermined direction. A tool changing mechanism of the processing equipment according to item 2. The tool arm is provided with at least a lateral groove, a receiving hole, and a drilled hole at both ends, the at least one tool clip is provided in the at least one lateral groove, and the elastic part is arranged in the receiving hole. installed in the hole, and the extruded ends of the two braking rods each extend to protrude to the drilled hole,
The braking means includes two reset parts each installed in the drilled hole, and each of the reset parts provides a pushing force acting on the extruded end of the brake rod, so that each of the brake rods is movable. 7. The tool changing mechanism for processing equipment according to claim 6, wherein the tool changing mechanism is maintained so as to move in the direction of the cylinder. The braking means includes a rotary disk,
The rotary disk is installed so as to cover the rotary shaft so as to maintain the same height position, and is rotatable around the rotary shaft,
The tool change mechanism for processing equipment according to claim 1, wherein the two braking rods each pass through the rotary disk, and a resistance end and an extrusion end are respectively located on both sides of the rotary disk. . 2. The tool exchange mechanism for processing equipment according to claim 1, wherein the movable cylinder has a high position area of the annular tip surface being a flat surface and a low position area of the annular tip surface becoming a gradually concave curved surface. . 10. The tool change mechanism for processing equipment according to claim 9, wherein when a center of circle is defined for the movable cylinder, the low position area on the annular tip surface has a center angle in a range of 9 degrees to 150 degrees. .