Tool changer of machining instrument

Abstract

To provide a tool changer of a machining instrument with which inversion and a normal position of a rotary seat is made accurate.SOLUTION: A tool changer of a machining instrument includes: a tool changing arm connected to a pedestal fixed so as not to be moved; and a transmission mechanism interlocking so that the tool changing arm swings. The transmission mechanism includes a shift cam, a driven part, and a turning shaft. The shift cam has a curved recessed groove on its surface. The driven part has a projecting part engaged with the curved recessed groove and interlocks so as to gear with the turning shaft. The turning shaft is connected to the tool changing arm. Thereby, the shift cam interlocks so that the driven part horizontally moves when rotating, and the tool changing arm accurately swings between two fixed points and interlocks to be positioned while the turning shaft is driven by the moving driven part so that the turning shaft rotates.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to equipment contained in a machining center, and in particular to a tool changer for a machining equipment. [Background technology]

[0002] The equipment included in the known machining center with a magazine is for the purpose of quickly changing machining tools by an automatic tool changing mechanism. The automatic tool changing mechanism includes a tool changing arm, and the tool changing arm is configured such that one end of a rotating shaft is connected to a tool arm, and when the rotating shaft is driven, the tool arm rotates to change the tool. Note that in some types of machines, the entire arm for changing tools must be controlled so that it can swing and move between two fixed points, otherwise it cannot be adapted to the structure for changing different tools, and cannot be applied to, for example, tool changing work with an upright spindle head or tool changing work with a horizontal spindle head.

[0003] In the known tool changing mechanism, a tool changing arm is attached to a rotating seat that can be rotated within a range of 90 degrees, and by controlling the rotating seat to rotate, the entire tool changing arm can be moved between two fixed points of 0 degree and 90 degree. However, since the tool changing arm is not light in weight as a whole, in order to stably and smoothly move the rotating seat to rotate, a known form has been adopted in which a hydraulic cylinder capable of generating and outputting a relatively large power is used as a power source. However, the form of pushing the hydraulic means to rotate the rotating seat has a potential problem that the rotation and positioning of the rotating seat are not accurate. In addition, the hydraulic configuration has a problem that hydraulic fluid leaks or the subsequent treatment of the hydraulic fluid is not environmentally friendly. In addition, there is a limitation that the temperature of the hydraulic fluid must not be too high during use. Therefore, the conventional tool changing mechanism that can move between two fixed points is not perfect and there are some areas that need to be improved. Summary of the Invention [Problem to be solved by the invention]

[0004] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to provide a tool changer for a machining device, which enables accurate inversion and positioning of a rotating seat. [Means for solving the problem]

[0005] In order to achieve the above object, a tool changing device for a processing machine is provided, the device including a base fixed so as to be immovable, a transmission mechanism, and a tool changing arm, wherein the transmission mechanism is coupled to the base and includes a transition cam, a driven part, a pivot shaft, and a rotating seat, the transition cam is controlled to rotate about a first axis, the transition cam has a curved groove on its surface, the driven part has a protrusion fitted into the curved groove, and performs a reciprocating motion along the first axis when the transition cam rotates, the pivot shaft penetrates the base and is rotatable about a second axis, a part of the pivot shaft positioned inside the base is interlocked to mesh with the driven part, and a part of the pivot shaft positioned outside the base is fixedly connected to the rotating seat, and the tool changing arm is connected to the rotating seat and is swingable between a first position and a second position. Effect of the Invention

[0006] The effect of the present invention is that the transition cam is driven to rotate, thereby interlocking the driven part to move horizontally, and the horizontally moving driven part is interlocked to rotate the pivot shaft through meshing, and the rotating pivot shaft can be used to interlock the tool change arm to swing between two fixed points while accurately positioning it. [Brief description of the drawings]

[0007] [Figure 1] 1 is a perspective view showing a tool changing device of a processing machine according to a preferred embodiment of the present invention; [Diagram 2] 2 is an exploded view of a tool exchange device of the processing machine shown in FIG. 1. [Diagram 3] 2 is a front view showing a tool exchange device of the processing equipment shown in FIG. 1, showing the tool exchange arm in a first position. [Figure 4] 3 is an exploded view showing a part of the configuration of the tool exchange device of the processing machine shown in FIG. 2. [Diagram 5] 5 is a perspective view of the combination of the components shown in FIG. 4, seen from another viewing angle. [Figure 6] 3 is an exploded view showing a part of the configuration of a transmission mechanism in the tool exchange device of the processing machine shown in FIG. 2. [Figure 7] FIG. 7 is an exploded view of the structure shown in FIG. 6. [Figure 8] 4 is a simplified diagram showing a transmission mechanism in the tool exchange device of the processing equipment shown in FIG. 3, showing that a first contact portion of a rotating seat is in contact with a blocking portion. FIG. [Figure 9] FIG. 4 is a view similar to FIG. 3, showing the tool exchange arm in a second position. [Figure 10] FIG. 9 is a view similar to FIG. 8 showing that the second contact portion of the rotating seat is in contact with the blocking portion. [Figure 11] 9 is a cross-sectional view showing a local enlargement of the structure shown in FIG. 8, illustrating the positional relationship between an angle sensing module and a transition cam. [Figure 12] 13 is a perspective view showing the positional relationship between another angle sensing module and a transmission mechanism. FIG. [Figure 13] 2 is an exploded view of a part of the structure of the tool exchange device of the processing machine shown in FIG. 1. [Figure 14] FIG. 4 is a cross-sectional view showing the combination relationship between the transmission seat and the upright wall. [Figure 15] 4 is a locally enlarged view of a transmission mechanism in the tool exchange device of the processing machine shown in FIG. 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] In order to more clearly explain the present invention, a preferred embodiment will be described in detail below with reference to the drawings. Referring to Figs. 1 to 3, as shown, a tool changer 100 for a processing machine according to a preferred embodiment of the present invention is for changing a tool of a spindle of the processing machine and a tool in a magazine. The tool changer 100 includes a base 10 fixed so as not to move, a tool changer arm 20, and a transmission mechanism 30. The tool changer arm 20 includes a rotating shaft 21 and a tool arm 22, one end of the rotating shaft 21 is connected to the tool arm 22, and the tool arm 22 has both opposite ends for holding a tool bar (not shown), and the rotating shaft 21 is driven to rotate, so that the tool arm 22 rotates by 180 degrees to switch.

[0009] The transmission mechanism 30 is coupled to the base 10 and is interlocked with the base 10 so that the tool exchange arm 20 moves between two fixed points. In this embodiment, the transmission mechanism 30 can be interlocked with the base 10 so that the tool exchange arm 20 moves back and forth between two fixed points, 0 degrees (see FIG. 3) and 90 degrees (see FIG. 9). What should be explained is that the two fixed points are not limited to 0 degrees and 90 degrees, and may be adjusted according to actual needs. Hereinafter, a specific configuration for interlocking the tool exchange arm 20 to move between two fixed points will be described in detail. The base 10 has a base 11 and an upright wall 12 connected to the base 11 so as to stand up. If one side of the upright wall 12 facing the tool exchange arm 20 is defined as the outer side and the opposite side is defined as the inner side, two fences 13 are provided on one side located on the inner side of the upright wall 12, and a front cover 14 is removably connected across the two fences 13.

[0010] As shown in Figs. 4 and 5, the transmission mechanism 30 includes a gear shaft 31, a revolving shaft 32, a central gear 33, a driven gear 34, and a rotating seat 35. The gear shaft 31 and the revolving shaft 32 are rotatably installed between the two fences 13 in parallel, with both ends of the gear shaft 31 and the revolving shaft 32 penetrating the upright wall 12 and the front cover 14, respectively. The central gear 33 is connected to cover the gear shaft 31, and the driven gear 34 is connected to cover the revolving shaft 32, and a key groove is provided between the driven gear 34 and the revolving shaft 32, and a key is placed therebetween (not shown). The central gear 33 meshes with the driven gear 34, and the number of teeth of the central gear 33 is smaller than that of the driven gear 34. The rotating seat 35 stands outside the upright wall 12 of the base 10, and is connected to be fixed to the equipment case 23 of the tool change arm 20 via a plurality of bolts 24. The rotating seat 35 has a plurality of through holes 351, and is locked to the rotating shaft 32 via a plurality of bolts 36 passing through the through holes 351, respectively, and passing through one end of the standing wall 12 to be fixedly connected to the rotating shaft 32. When the rotating shaft 32 rotates, the rotating seat 35 and the tool change arm 20 are interlocked so that they both rotate in the opposite direction. The part of the rotating shaft 32 that passes through the standing wall 12 is further connected to cover a blocking pipe 37. The blocking pipe 37 is located between the standing wall 12 and the rotating seat 35, so that it is possible to prevent dust or chips from unexpectedly entering between the rotating shaft 32 and the standing wall 12 in the working environment and hindering the smooth rotation of the rotating shaft 32.

[0011] 6 and 7, the transmission mechanism 30 further includes a transmission seat 38, a transition cam 39, a motor 40, a slide block 41, a linear track 42, and a driven part 43. The transmission seat 38 is connected to the upright wall 12 of the base 10 through a number of positioning pins 44. The transmission seat 38 has a right plate 381 and a left plate 382 spaced apart from each other, and the right plate 381 and the left plate 382 are respectively provided with a front shaft 45 and a rear shaft 46. The transition cam 39 is a cylindrical cam in this embodiment, and is installed so that both ends of the transition cam 39 pass through the front shaft 45 and the rear shaft 46, respectively, thereby rotatably connected to the transmission seat 38. The transition cam 39 has a curved groove 391 on its surface. The motor 40 is connected to the left plate 382 of the transmission seat 38 and can be engaged with the transition cam 39 to rotate around the first axis L1.

[0012] The slide block 41, the linear track 42 and the driven part 43 are installed between the central gear 33 and the transition cam 39. The slide block 41 is connected to the upright wall 12 so as not to move. The linear track 42 and the slide block 41 are combined with a sliding pair. The driven part 43 is connected to the linear track 42 so as to be integrally fixed via a plurality of screws 47. The driven part 43 has a gear surface 431 on its top surface, which is installed along the direction of the first axis L1. The gear surface 431 meshes with the central gear 33. The driven part 43 has a protrusion 432 on its bottom surface. The protrusion 432 fits into the curved groove 391 in the transition cam 39. In this embodiment, the protrusion 432 is a shaft bearing including a rod main body 432a and a head 432b. One end of the rod main body 432a is connected to the bottom surface of the driven part 43, and the other end is connected to the head 432b. The head 432b is located in the curved groove 391. By providing the head 432b rotatably, it is possible to prevent the head 432b from coming into contact with the curved groove 391 and becoming worn. By providing the head 432b non-rotatably, it is configured to be integrated with the rod main body 432a and to increase the stability of the head 432b itself.

[0013] The configuration of the tool changer 100 according to the preferred embodiment of the present invention has been described above. Next, its operation will be described.

[0014] 3 and 8 show a state in which the tool change arm 20 is upright. The tool change arm 20 in this state is defined as being located at a first position P1. Referring to FIG. 9 and FIG. 10, when the motor 40 is started to rotate the transition cam 39, the rotating transition cam 39 pushes the protrusion 432 by its curved groove 391. The driven part 43 can only move in the direction of the first axis L1 due to the restriction caused by the form in which the slide block 41 and the linear track 42 are combined by a sliding pair, and the gear surface 431 of the driven part 43 interlocks with the central gear 33 by meshing, and the central gear 33 interlocks with the driven gear 34 by meshing, and the rotating driven gear 34 interlocks with the revolving shaft 32 to rotate about the second axis L2 (see FIG. 4). Then, the rotating seat 35 and the tool change arm 20 can be interlocked to rotate in the opposite direction synchronously. When the tool change arm 20 is swung to a horizontal position, the tool change arm 20 in the above state is defined as being located at the second position P2. On the other hand, when the transition cam 39 is controlled to rotate in the opposite direction, the tool change arm 20 can be pulled back to the first position P1. The length of the stroke of the curved groove 391 in the transition cam 39 is carefully designed so that the tool change arm 20 can reliably swivel between the first position P1 and the second position P2.

[0015] In addition, the present invention may further provide a position limiting means for accurately positioning the tool exchange arm 20 at the first position P1 or the second position P2. As shown in Figs. 4 and 5, the position limiting means according to this embodiment includes a blocking portion 15 installed on the outer side of the upright wall 12 of the base 10. The blocking portion 15 has a blocking surface 15a, and a first contact portion 352 and a second contact portion 353 are installed at two different points on the rotating seat 35. When the first contact portion 352 is in contact with an upper portion of the blocking surface 15a, the tool exchange arm 20 is accurately positioned at the first position P1 (see Figs. 3 and 8). When the second contact portion 353 is in contact with a lower portion of the blocking surface 15a, the tool exchange arm 20 is accurately positioned at the second position P2 (see Figs. 9 and 10). In short, by setting the blocking portion 15 based on the design of the curved groove 391, it is possible to prevent the rotary seat 35 from being deflected more than necessary, and ensure that the tool change arm 20 is accurately positioned at the first position P1 or the second position P2. In a specific application example, the first abutment portion 352 and the second abutment portion 353 are bolts. By finely adjusting the depth at which the bolt is locked to the rotary seat 35, the contact of the first abutment portion 352 or the second abutment portion 353 with the blocking surface 15a can be advanced or delayed, so as to provide the tool change arm 20 with an accurate positioning effect. Note that, in the above embodiment, the blocking surface 15a is set on the base 10, and the first abutment portion 352 and the second abutment portion 353 are set on the rotary seat 35, but according to actual needs, the first abutment portion and the second abutment portion can be set on the base, and the blocking surface can be set on the rotary seat.

[0016] In the above embodiment, the electric control is used as the power source for driving the tool change arm 20 to swing. That is, the motor 40 directly drives the transition cam 39 to rotate in the forward and reverse directions. As a result, the driven part 43 is interlocked to perform a reciprocating motion along the first axis L1 direction. Based on this, the purpose of controlling the tool change arm 20 to swing between two fixed points is achieved. When the tool change arm is interlocked to move between two fixed points by a hydraulic cylinder, if hydraulic fluid leaks, the problem of the disposal of the hydraulic fluid being unfriendly to the environment can be solved, and the structure according to the present invention does not have its use restricted due to the hydraulic fluid being too hot.

[0017] The driven part 43, by meshing with the driven gear 34 covering the pivot shaft 32 located inside the base 10, achieves the purpose of interlocking so that the tool change arm 20 swings. In the above embodiment, a central gear 33 is installed between the driven gear 34 and the gear surface 431 of the driven part 43. It should be noted that the number of central gears is not limited to one, and may be increased or decreased according to actual needs. In addition, the circumferential surface of the pivot shaft may be provided as a gear surface and installed so as to directly mesh with the gear surface of the driven part. This eliminates the need to install the central gear.

[0018] The tool changer according to the present invention may be additionally provided with an angle sensing module for detecting the rotation angle of the transition cam and instantly controlling the motor to stop operation. As shown in FIG. 1 and FIG. 6, the angle sensing module 50 is attached to the transmission seat 38 of the tool changer 100 according to the above embodiment. As shown in FIG. 7 and FIG. 11, the angle sensing module 50 includes a magnet 51, an angle sensor 52, and a controller 53. The magnet 51 is located on the end surface of the transition cam 39 through a fixing ring 54 plugged in a side hole 392 of the transition cam 39, and can rotate as the transition cam 39 rotates. The angle sensor 52 is fixed to the right side plate 381 of the transmission seat 38. The angle sensor 52 has a guide surface 52a that is spaced apart from the guided surface 51a of the magnet 51 by a predetermined fine distance. The fine distance is set to 1.5 mm to 3.5 mm, but it is preferable to set the distance to 2.5 mm. The guide surface 52a guides the rotation angle of the magnetic field lines in the magnet 51 to change without contact. When the induced rotation angle of the magnetic field lines (equal to the rotation angle of the transition cam) matches a predetermined value, the controller 53 receives a signal generated in the angle sensor 52 and controls the motor 40 to stop operation. The predetermined value of the rotation angle corresponds to the positions of two fixed points of the tool change arm 20 at angles of 0 degree and 90 degree, that is, when the tool change arm 20 arrives at the first position P1 or the second position P2, the motor 40 is stopped from swinging more than necessary, thereby preventing the tool change arm 20 from swinging more than necessary.

[0019] Also, the angle sensing module may be composed of two angle detection means and two guide blocks. As shown in FIG. 12, the two angle detection means 55 are proximity switches and are respectively connected to a fixed plate 57. The fixed plate 57 is fixedly connected to the right side plate 381 of the transmission seat 38. The two guide blocks 56 are signal cams and are connected to cover one end of the transition cam 39 so as to rotate synchronously with the transition cam 39. The two guide blocks 56 each have a convex guided portion 56a, and the guided portions 56a are installed offset from each other. When the angle detection means 55 instantly senses the guided portion 56a, it generates a signal corresponding to the rotation angle. The signal is also used to control the motor 40 to stop operation.

[0020] In addition, the tool changer according to the present invention may be additionally provided with two position detection means for detecting the position of the driven part. In FIG. 12, the two position detection means 58 and the two angle detection means 55 are both electrically connected to a controller (not shown). The two position detection means 58 are connected to a fixed plate 59 at an interval. The fixed plate 59 is then provided to be fixed to the end plate 383 of the transmission seat 38. The screw for locking the driven part 43 and the linear track 42 as one body is changed to a screw 48 having a head. The head constitutes the guided part 48a. When the angle detection means 55 transmits a signal corresponding to the rotation angle while the transition cam 39 rotates, one of the two position detection means 58 senses the guided part 48a of the driven part 43 after moving in the horizontal direction to generate a confirmation signal. Until now, it has been confirmed that the driven part 43 has moved sufficiently. On the other hand, if the angle detection means 55 transmits a signal corresponding to the rotation angle, but the position detection means 58 does not transmit a corresponding confirmation signal, it is not assumed that the driven part 43 has moved sufficiently as expected, and the controller at this time generates an alarm signal as a malfunction indication. Then, the malfunction can be immediately eliminated. The position detection means is preferably installed in combination with an angle sensing module consisting of a magnet and an angle sensor.

[0021] As can be seen from the above, the tool changer 100 according to the present invention not only allows the tool changer arm 20 to swing within a predetermined range, but also allows the tool changer arm 20 to be accurately positioned at the first position P1 or the second position P2 due to the interlocking relationship between the transition cam 39, the driven part 43, the central gear 33 and the driven gear 34. In addition, in order to effectively eliminate the gear gap, the present invention further provides a fine adjustment means that can be interlocked to move the transmission seat 38 along the direction of the first axis L1. The fine adjustment means includes at least one adjustment rod. The transmission seat 38 and the base 10 are combined in the form of a sliding pair. Since the transition cam 39 is coupled to the transmission seat 38, the transmission seat 38 and the transition cam 39 can be interlocked to move synchronously when the at least one adjustment rod is driven to rotate.

[0022] As shown in Figs. 13 to 15, in an embodiment for achieving the above object, two parallel restraining surfaces 16 are provided on the inner surface of the upright wall 12 of the base 10. The transmission seat 38 has shoulders 385 on the upper and lower edges of the tail plate 384, or the upright wall 12 has a plurality of positioning holes 12a. The tail plate 384 has a plurality of long slots 384a. When the transmission seat 38 is attached, the shoulders 385 are combined with the restraining surfaces 16, and the positioning pins 44 are used to extend into the positioning holes 12a through the long slots 384a. This allows the transmission seat 38 to move along the direction of the first axis L1 within the range of the long axis direction of the long slots 384a. In one embodiment, the positioning holes 12a are screw holes, and the positioning pins 44 are bolts.

[0023] The at least one adjusting rod includes a first adjusting rod 60 and a second adjusting rod 61, which are exemplified by bolts. In this embodiment, the first adjusting rod 60 and the second adjusting rod 61 are installed on the same side. The first adjusting rod 60 is connected to a fixed block 62 on the upright wall 12 so as to be locked and fixed. The fixed block 62 constitutes a fixed support point for the first adjusting rod 60 when it rotates. Therefore, when the first adjusting rod 60 is driven to move forward, the first adjusting rod 60 pushes the transmission seat 38 to move in the first direction D1. The second adjusting rod 61 is directly locked to the screw hole 386 of the transmission seat 38. Moreover, one end of the second adjusting rod 61 abuts against the body of the positioning pin 44. One end of the positioning pin 44 extends into the positioning hole 12a. Therefore, when the second adjusting rod 61 is driven to rotate, the positioning pin 44 in contact with the second adjusting rod 61 constitutes a fixed support point. When the second adjusting rod 61 continues to be locked into the screw hole 386, the transmission seat 38 moves in the second direction D2 in the first direction D1 in a manner similar to that of being pulled. As a result, the transition cam 39 moves synchronously.

[0024] In the above, the transition cam 39, which is moving synchronously with the transmission seat 38, abuts and pushes the driven part 43 through the protrusion 432 so as to move. This can eliminate the gap between the gears and achieve the purpose of finely adjusting the swing direction of the entire tool change arm 20. It should be noted that in other embodiments, the first and second adjustment rods 60 and 61 may be installed on the opposite sides, that is, on the outsides of the right and left plates 381 and 382, ​​respectively. In addition, the first and second adjustment rods 60 and 61 may be installed with U-shaped nuts 63, respectively, to lock and position the first and second adjustment rods 60 and 61 accurately.

[0025] The above are merely preferred embodiments of the present invention, and any equivalent replacement based on the specification and scope of the present invention is obviously within the scope of the patent of the present invention. [Explanation of symbols]

[0026] 100 Tool changer 10 Pedestal 11 Base 12 Standing wall 12a Positioning hole 13. Hedge 14 Front cover 15 Blocking part 15a Blocking surface 16 Restraint surface 20 Tool change arm 21 Rotation axis 22 Tool Arm 23 Equipment Case 24 Volts 30 Transmission Mechanism 31 Gear shaft 32 Rotation axis 33 Central Gear 34 Driven Gear 35 Swivel seat 351 Through hole 352 First contact part 353 Second contact part 36 Volts 37 Blocking Tube 38 Transmission seat 381 Right side plate 382 Left side plate 383 Tip plate 384 Tail end plate 384a Slotted hole 385 Shoulder 386 screw holes 39 Transition Cam 391 Curved groove 392 Side hole 40 Motor 41 Slide Block 42 Linear orbit 43 Driven part 431 Gear Surface 432 Protrusion 432a Rod main body 432b Head 44 Locating pin 45 Front Shaft 46 Rear Shaft 47 Screw 48 Screws 48a Guided part 50 Angle Sensing Module 51 Magnet 51a Guided surface 52 Angle Sensor 52a Guidance surface 53 Controller 54 Fixing ring 55 Angle detection means 56 Guiding Blocks 56a Guided part 57 Fixed plate 58 Position detection means 59 Fixed plate 60 First adjustment rod 61 Second adjustment rod 62 Fixed Block 63 U-nut L1 First axis L2 Second axis P1 first position P2 2nd position

Claims

1. A pedestal that is fixed so that it cannot move, a transmission mechanism coupled to the base and including a transition cam, a driven part, a turning shaft, and a rotating seat, the transition cam being controlled to rotate about a first axis, the transition cam having a curved groove on its surface, the driven part having a protrusion fitted into the curved groove, and performing a reciprocating motion along the first axis when the transition cam rotates, the turning shaft penetrating the base and being rotatable about a second axis, a part of the turning shaft positioned inside the base being interlocked to mesh with the driven part, and a part of the turning shaft positioned outside the base being connected to be fixed to the rotating seat; A tool changing device for a processing machine, comprising: a tool changing arm connected to the rotating seat and capable of swinging between a first position and a second position.

2. The transmission mechanism includes a driven gear, the driven gear is covered by the rotating shaft, 2. The tool exchange device of a processing machine according to claim 1, wherein the driven part has a gear surface installed in the first axial direction, and is linked to the driven gear so as to mesh with the gear surface, and the driven gear rotates in conjunction with the rotating shaft.

3. The transmission mechanism includes at least one central gear; 3. The tool changer of claim 2, wherein the gear surface of the driven part meshes with the central gear, and the at least one central gear meshes with the driven gear, the at least one central gear having a number of teeth that is less than a number of teeth of the driven gear.

4. The transmission mechanism includes a linear track and a slide block; 2. The tool exchange device of the processing equipment according to claim 1, wherein one of the linear track and the slide block is fixedly connected to the base and the other is fixedly connected to the driven part, and the linear track and the slide block are combined with each other by a sliding pair.

5. The transmission mechanism includes a transmission seat joined to the base, and the transition cam is rotatably mounted on the transmission seat, 2. The tool changing device of claim 1, further comprising fine adjustment means for interlocking the transmission seat so that the transmission seat moves along the direction of the first axis.

6. The fine adjustment means includes at least one adjustment rod, and the transmission seat and the base are combined with each other through a sliding pair; The tool changing device of a processing machine according to claim 5, wherein the at least one adjustment rod is rotated by being driven, and the interlocking transmission seat is moved.

7. The transmission seat has a plurality of slots, the base has a plurality of positioning holes, and a plurality of positioning pins extend through the slots into corresponding positioning holes, respectively; 7. The tool changing device of a processing equipment according to claim 6, wherein the at least one adjusting rod has a first adjusting rod and a second adjusting rod, the first adjusting rod being rotated when driven and being interlocked so that the transmission seat moves in a first direction, and the second adjusting rod being rotated when driven and being interlocked so that the transmission seat moves in a second direction, the first direction and the second direction being opposite directions.

8. The transmission mechanism includes a transmission seat and a motor, The transmission seat is coupled to the base, the transition cam is installed on the transmission seat, and the motor is coupled to the transmission seat and is interlocked with the transition cam to rotate; 2. The tool exchange device of the processing machine according to claim 1, further comprising an angle sensing module coupled to the transmission seat for detecting a rotation angle of the transition cam.

9. the angle sensing module includes a magnet and an angle sensor; the magnet is disposed on one end surface of the transition cam and rotates with the rotation of the transition cam; 9. The tool exchange device of a processing machine according to claim 8, wherein the angle sensor is fixed to the transmission seat and generates a signal by inducing the rotation angle of the magnetic field line of the magnet in a non-contact manner, and the signal controls the motor to stop operation.

10. The angle sensing module includes two angle detection means installed on the transmission seat; The transition cam is provided with two guided parts that can rotate synchronously with the transition cam, 9. The tool exchange device for processing equipment according to claim 8, wherein each of said angle detection means detects said guided portion and generates a signal, and said signal controls said motor to stop operation.

11. The drive mechanism includes two position detection means disposed on the transmission seat, and a guided part disposed on the driven part, The tool exchange device of a processing equipment according to claim 9 or 10, characterized in that each of the position detection means is electrically connected to the angle sensing module, and generates a confirmation signal while sensing the guided part in the driven part when the angle sensing module transmits the signal.

12. 2. The tool exchange device of a processing machine according to claim 1, further comprising a position limiting means for positioning the tool exchange arm at the first position or the second position.

13. The position limiting means includes a blocking surface provided on the base, and a first abutment portion and a second abutment portion installed on the rotating seat, 13. The tool changing device of a processing machine according to claim 12, wherein the tool changing arm is located at the first position when the first abutment portion is in contact with the blocking surface, while the tool changing arm is located at the second position when the second abutment portion is in contact with the blocking surface.

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