Tool changing device for bending machine die machining and machining equipment

Abstract

The invention discloses a tool changing device for bending machine die machining and machining equipment, and relates to the technical field of machining equipment. The tool changing device comprises a tool apron mechanism and a tool changing mechanism. A tool groove used for installing a tool through a clamping sleeve is formed in a tool table of the tool apron mechanism, and a clamping jaw groove, a positioning groove and a lock hole are formed in the outer surface of the clamping sleeve. The tool changing mechanism comprises a tool changing arm driven by a reversing motor and a pushing air cylinder, and the tool changing arm is provided with a connecting claw with a clamping block and a positioning block and a locking assembly with a lock shaft driven by an electric push rod. When the cutter is replaced, the positioning block needs to be inserted into the positioning groove of the clamping sleeve to check and prevent the cutter with the offset posture from being grabbed; and then the lock shaft is inserted into the lock hole to rigidly lock the tool and the tool changing arm to ensure stable transfer. According to the double-insurance mechanism, installation collision caused by tool offset is actively prevented through a pure mechanical structure, and the reliability and safety of tool changing and the running stability of equipment are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of machining equipment technology, and in particular to a tool changing device and machining equipment for processing bending machine molds. Background Technology

[0002] In the field of precision machining of bending machine dies, especially when processing long, complex sheet metal parts through multiple processes, such as the die in patent application number 2025226352477, it is often necessary to use multiple specifications of cutting tools on a single machine, such as milling cutters and drills of different shapes or sizes, to sequentially complete operations such as cutting, grooving, and drilling. This requires the processing equipment to have automatic, fast, and reliable tool changing capabilities.

[0003] Currently, common automated tool changers typically consist of a rotating tool magazine and a robotic arm. The basic workflow is as follows: the robotic arm removes the current tool from the spindle and places it back into the designated tool holder in the tool magazine; then the tool magazine rotates, delivering the next required tool to the tool change position; finally, the robotic arm grasps the new tool and mounts it onto the spindle. To achieve this grasping, the tool or tool holder usually has standardized slots or flanges, and the robotic arm's grippers are designed to match these, gripping and transferring the tool through clamping or hooking.

[0004] However, this conventional tool changing method has significant technical drawbacks in practical applications. First, during frequent tool changing cycles, the initial placement of the tool in the tool magazine may have slight angular deviations, or it may rotate due to vibration during the robotic arm's grasping and movement. Second, the fit between the robotic arm's gripper and the tool slot inherently has a certain clearance, which accumulates errors over time. These factors can all lead to the tool's interface, such as the keyway or drive groove on the tool holder, not being perfectly aligned with the corresponding structure on the spindle mounting head when it is transferred to the spindle and attempted to be installed. If the control system fails to effectively detect this misalignment and continues to force the installation, it will cause a rigid collision or misalignment between the tool and the spindle mounting head. This installation damage will not only immediately damage expensive tools and precision spindle components, leading to production interruptions and high repair and replacement costs, but will also affect machining accuracy due to loose connections in subsequent processing, and may even cause safety accidents.

[0005] Therefore, there is an urgent need in the existing technology for a reliable solution that can fundamentally prevent installation damage caused by tool misalignment during tool changing. An ideal solution should be able to actively and mechanically identify and prevent tools in incorrect positions from being passed or installed at critical stages of the tool changing process, thus providing dual assurance for the reliability of the automatic tool changing process. This invention is proposed based on this technical problem. Summary of the Invention

[0006] To address the aforementioned problems, this application provides a tool changing device and processing equipment for bending machine die processing.

[0007] A tool changing device for bending machine die processing includes: a tool holder mechanism, which includes a tool holder with multiple tool slots, the tool slots being used to install tools via ferrules, the outer surface of the ferrule having a claw groove and a positioning groove, and the ferrule body also having a locking hole; a tool changing mechanism, which includes a tool changing arm, a conversion drive assembly for driving the tool changing arm to move and rotate, and a locking assembly disposed on the tool changing arm; the tool changing arm is provided with a connecting claw, the inner wall of the connecting claw having a locking block matching the shape of the claw groove and a positioning block engaging with the positioning groove; the locking assembly includes an electric push rod and a locking shaft driven by the electric push rod, the locking shaft engaging with the locking hole on the ferrule.

[0008] Compared to existing technologies, the above-mentioned technical solution establishes a mechanical double-safety mechanism by setting positioning blocks and slots, as well as locking shafts and locking holes, on the ferrule and tool changer arm. During tool changing, the forced alignment of the positioning blocks and slots acts as the first layer of safety, identifying and preventing tools with misalignment from being gripped, thus eliminating installation risks. The rigid connection of the locking shaft and locking holes acts as the second layer of safety, locking the tool to the tool changer arm during tool transfer, eliminating relative displacement and ensuring precise installation alignment. This solution solves the problem of installation collisions and damage to the spindle and tool caused by tool misalignment, improving the reliability, safety, and operational stability of the automatic tool changer.

[0009] Furthermore, elastic cards are fixedly provided on both sides of each blade slot on the blade holder. The elastic cards have an elastic force toward the blade slot, which is used to press and fix the sleeve installed in the blade slot.

[0010] Compared with existing technologies, by adopting the above technical solution, the elastic card can clamp and fix the tool sleeve in the tool slot, preventing the tool from loosening or falling off when the tool holder rotates, ensuring the stability of the tool magazine storage, and providing a basis for the precise gripping of the tool changer arm.

[0011] Furthermore, the sleeve is cylindrical, with a through-hole in its axial direction for inserting and clamping the tool, and the claw groove is circumferentially formed on the outer surface of the sleeve body.

[0012] Compared with existing technologies, by adopting the above technical solution, the cylindrical ferrule and its internal mounting holes allow tools of different shank diameters to be installed through the clamping mechanism inside the ferrule, achieving standardization of the interface between the tool and the tool changer. The circumferentially formed jaw grooves facilitate the gripping and rotation of the tool changer arm.

[0013] Furthermore, the conversion drive assembly includes a reversing motor and a push cylinder. A drive rod is fixed in the middle of the tool changing arm, a gear ring is mounted on the drive rod, a drive gear that meshes with the gear ring is mounted on the output shaft of the reversing motor, and the output shaft of the push cylinder is connected to the drive rod to drive its axial movement.

[0014] Compared with existing technologies, this drive structure combines rotary drive and linear drive by adopting the above technical solution. The commutator motor drives the tool changer arm to rotate via a gear pair to align with the tool position, while the push cylinder drives the tool changer arm to move up and down to complete the gripping and placing actions.

[0015] Furthermore, both the drive gear and the teeth on the gear ring are straight teeth.

[0016] Compared with the existing technology, by adopting the above technical solution and using spur gear meshing, the drive gear and gear ring can always maintain a meshing state when the tool changing arm is driven by the push cylinder to move axially, ensuring the transmission continuity of the tool changing arm in the compound motion process.

[0017] Furthermore, the elastic card has a V-shaped structure, which includes two elastic sheets, and a distance sensor is disposed between the two elastic sheets.

[0018] Compared with existing technologies, the V-shaped elastic sheet provides a stable clamping force by adopting the above technical solution. The distance sensor set between the elastic sheets can detect changes in the distance between the two sheets to determine whether there is a tool in the corresponding tool slot, thereby realizing the monitoring and feedback of the tool magazine status.

[0019] Furthermore, the tool holder is circular, with multiple tool slots arranged around it, and the tool holder is driven to rotate by a tool changing motor.

[0020] Compared with existing technologies, the circular rotary tool holder, by adopting the above technical solution, has a compact structure, high space utilization, and can accommodate more tools. The rotary tool selector is driven by a tool changer motor, resulting in fast tool changing speed and accurate positioning.

[0021] A bending machine mold processing equipment includes a base, a frame and a workpiece table disposed on the base, and a tool changing device; a movable transfer frame is disposed on the frame, a spindle is mounted on the transfer frame, and a mounting head for mounting tools is fixedly disposed on the spindle; the tool changing device is disposed at a tool changing station on one side of the base.

[0022] Compared with existing technologies, by adopting the above technical solution, a tool changer with dual safety functions is integrated into the processing equipment, forming a complete automated processing system. The equipment can automatically change tools during processing, improving the automation level and production efficiency of multi-stage continuous processing of complex workpieces.

[0023] Furthermore, a track is provided on the base, a slider is provided at the bottom of the workpiece stage to cooperate with the track, and a drive cylinder is also provided on the base to drive the workpiece stage to move along the track.

[0024] Compared with existing technologies, by adopting the above technical solution, the workpiece table can move along the track, which facilitates the operation of workpiece loading, processing and unloading, reduces manual intervention, and improves production cycle and processing consistency.

[0025] Furthermore, the frame is provided with a translation track, and the transfer frame moves parallel to the translation track by a first drive mechanism and moves vertically along the translation track by a second drive mechanism.

[0026] Compared with existing technologies, by adopting the above technical solution, the transfer frame can drive the spindle to move in both horizontal and vertical directions. Combined with the movement of the workpiece table, it can realize three-axis linkage machining of the workpiece and meet the machining path requirements of complex molds.

[0027] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up a first-level attitude verification mechanism consisting of a positioning block and a positioning groove, and a second-level transfer locking mechanism consisting of a locking shaft and a locking hole, a mechanical double insurance is formed to prevent installation collision accidents caused by tool attitude deviation and protect the spindle and tool.

[0028] 2. Through the design of elastic card fixing, circular tool turret rotation tool selection and standardized ferrule, stable storage of tools in the tool magazine and fast and accurate tool selection and changing are achieved, improving the efficiency of the entire tool changing process.

[0029] 3. By integrating the above-mentioned tool changing device into a machining equipment with multi-axis movement function, the automation of complex molds from workpiece positioning and multi-process machining to automatic tool changing can be realized, thereby improving machining accuracy and production efficiency. Attached Figure Description

[0030] Figure 1 It is a three-dimensional view of the processing equipment, mainly showing its specific structure; Figure 2 It is a three-dimensional view of the processing equipment from another perspective, mainly showing its specific structure; Figure 3 It is a partial view of the processing equipment, mainly showing the tool changing device; Figure 4 This is a three-dimensional view of the tool changing device, mainly showing its specific structure; Figure 5 This is a partial view of the tool changing device, mainly showing the tool holder mechanism; Figure 6 The main focus is on showcasing the conversion driver components; Figure 7 The main focus is on demonstrating the state of the connecting claw gripping the cutting tool.

[0031] Explanation of reference numerals in the attached drawings: 1. Frame; 12. Transfer frame; 13. Spindle; 14. Mounting head; 2. Base; 21. Protective cover; 23. Workpiece table; 24. Drive cylinder; 31. Tool changer motor; 32. Tool holder; 33. Tool groove; 34. Sleeve body; 341. Claw groove; 35. Mounting hole; 36. Positioning groove; 37. Elastic sheet; 38. Distance sensor; 39. Tool; 41. Reversing motor; 411. Drive gear; 42. Push cylinder; 43. Tool changer arm; 431. Connecting claw; 432. Grip groove; 433. Locking block; 434. Positioning block; 44. Electric push rod; 45. Locking shaft; 46. Locking hole; 47. Drive rod; 471. Gear ring. Detailed Implementation

[0032] The embodiments illustrated in the accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of protection of this application. Other implementation methods obtained by those skilled in the art based on the described embodiments without inventive effort are all within the scope of protection of this application.

[0033] A bending machine die processing equipment, referring to Figure 1 and Figure 2 The equipment comprises a horizontally positioned base 2, surrounded by protective covers 21. A frame 1 is fixedly mounted on the base 2 along its width. On one side of the frame 1, a worktable for supporting and securing workpieces is mounted on the base 2. To facilitate workpiece transfer between different workstations, a linear track is formed along the length of the upper surface of the base 2. A slider that mates with the track is mounted on the bottom of the worktable, allowing it to slide along the track. A drive device, specifically a drive cylinder 24, is also mounted on the base 2. The piston rod of the drive cylinder 24 is connected to the worktable; by extending and retracting the piston rod, the entire worktable is moved along the length of the base 2, transporting the workpiece from the unloading area to the processing area.

[0034] Reference Figure 1 and Figure 2A translation rail is installed on the front of the frame 1. The transfer frame 12 engages with the translation rail via a slider on its back. The movement of the transfer frame 12 is controlled by two sets of drive mechanisms: the first drive mechanism drives the transfer frame 12 to move horizontally along the translation rail; the second drive mechanism drives the transfer frame 12 to move vertically up and down along the translation rail. A spindle 13 is fixedly installed at the lower part of the transfer frame 12. The output end of the spindle 13 faces downwards and is fixedly connected to a mounting head 14 for mounting the tool 39. The mounting head 14 has a quick-change interface mechanism inside.

[0035] A tool changing device for bending machine die processing, referring to Figure 3 This includes a tool changing station located at one end of the length of the base 2. An automatic tool changing device is installed at this station. This device mainly consists of a tool holder mechanism and a tool changing mechanism.

[0036] Reference Figure 4 and Figure 5 The tool holder mechanism includes a circular tool holder 32 for storing multiple spare tools 39. The tool holder 32 is horizontally mounted on a base via a central pivot and can rotate about its central axis. Multiple radial grooves 33 are machined around the circumference of the tool holder 32. Each groove 33 is used to accommodate one tool 39. To accommodate tools 39 with different shank diameters and to achieve standardized gripping with the tool changing mechanism, each tool 39 is mounted in the groove 33 via a dedicated ferrule. The ferrule body 34 is a cylindrical part with a through-hole 35 along its axial direction. After the shank of the tool 39 is inserted into this hole 35, it is secured by an elastic clamping mechanism inside the ferrule. A ring-shaped claw groove 341 is circumferentially formed on the outer cylindrical surface of the ferrule body 34. Furthermore, an axial positioning groove 36 is provided at a specific angular position on the outer surface of the ferrule, and a radial locking hole 46 is provided near the end face.

[0037] Reference Figure 4 and Figure 5On the tool holder 32, a flexible clip is fixedly installed on both sides of each tool slot 33 entrance via screws. The flexible clip is designed in a V-shape, with its two elastic arms protruding towards the center of the tool slot 33 in their natural state. When a tool 39 with a retainer is placed into the tool slot 33, the outer wall of the retainer compresses the two elastic arms, causing them to open outwards. The rebound force generated by the elastic arms then presses the retainer against the tool slot 33 from both sides, thus fixing the tool 39 within the tool slot 33 and preventing it from loosening when the tool holder 32 rotates. A distance sensor 38 is also installed between these two elastic arms. This sensor includes a transmitter and a receiver. Since the outer diameter of the retainer is fixed, when there is a tool 39 in the tool slot 33, the retainer expands the elastic arms to a fixed distance; when the tool slot 33 is empty, the elastic arms return to another, closer fixed distance. The sensor detects these two fixed distances to determine whether a tool is present at that position and feeds back the status signal to the equipment control system. The entire tool holder 32 is driven to rotate by a tool changer motor 31 through a transmission mechanism, thereby sending the target tool 39 to the tool change position.

[0038] Reference Figure 6 and Figure 7 The tool changing mechanism mainly includes a tool changing arm 43 and a conversion drive assembly that drives its movement. The conversion drive assembly includes a reversing motor 41 and a push cylinder 42. A drive rod 47 is vertically fixed to the middle of the tool changing arm 43, and the axis of the drive rod 47 is perpendicular to the length direction of the tool changing arm 43. A gear ring 471 is fixedly fitted on the drive rod 47. A drive gear 411 is mounted on the output shaft of the reversing motor 41, and the drive gear 411 meshes with the gear ring 471. The teeth on both the drive gear 411 and the gear ring 471 are straight teeth. The cylinder body of the push cylinder 42 is fixedly installed, and the end of its piston rod is connected to the center of the end of the drive rod 47. When the push cylinder 42 is activated, it drives the entire drive rod 47, together with the tool changing arm 43, to move linearly along the axial direction of the drive rod 47. Due to the use of straight teeth meshing, the drive gear 411 and the gear ring 471 remain meshed during the axial movement of the drive rod 47. When the reversing motor 41 rotates, it drives the tool changing arm 43 to rotate horizontally around the axis of the drive rod 47 through the gear pair.

[0039] Reference Figure 6 and Figure 7The tool changer arm 43 is the component that performs the gripping action. Two identical connecting claws 431 are symmetrically arranged at both ends. The inner surface of the connecting claw 431 is machined into an arc-shaped concave surface that matches the outer circumference of the ferrule, forming a gripping groove 432. An arc-shaped protrusion is machined on the inner wall of the gripping groove 432, which serves as a locking block 433, its shape matching the annular claw groove 341 on the ferrule. Furthermore, a positioning block 434 is fixedly installed at a specific position on the inner wall of the connecting claw 431, the position of which corresponds to the axial positioning groove 36 on the ferrule. A locking assembly is also installed on the tool changer arm 43, comprising an electric actuator 44 fixed to the arm body and a locking shaft 45 driven by the electric actuator 44 to perform linear telescopic movement. The position of the locking shaft 45 corresponds to the radial locking hole 46 on the ferrule.

[0040] The implementation principle of this application is as follows: During machining, the workpiece is placed on the worktable and fixed to the fixture through the mounting holes 35 on the worktable. The drive cylinder 24 is activated, pushing the worktable to move along the track and sending the workpiece to the machining position below the spindle 13. The tool 39 on the spindle 13 rotates under the drive of the motor, and at the same time, the first drive mechanism and the second drive mechanism control the transfer frame 12 and the spindle 13 to work together to process the workpiece according to the program.

[0041] When tool 39 needs to be changed, the first drive mechanism drives the transfer frame 12 to move horizontally, moving the spindle 13 to the tool changing station on the side of the frame 1, and aligning the mounting head 14 at the lower end of the spindle 13 with the tool changing mechanism. Tool changing process initiated: Step 1: Remove the old tool from the spindle 13. The conversion drive assembly starts working, and the reversing motor 41 drives the tool changer arm 43 to rotate, causing the connecting claw 431 to move directly below the mounting head 14 of the spindle 13 and align with the ferrule on the mounting head 14. The cylinder 42 is activated, driving the tool changer arm 43 to move upward. The connecting claw 431 gradually approaches and encloses the ferrule. During this process, the positioning block 434 on the inner wall of the connecting claw 431 must first accurately insert into the positioning groove 36 on the outer surface of the ferrule. This is the first posture check: if the tool 39 is correctly mounted on the spindle 13, or if its posture has not shifted when it is taken out of the tool magazine, the positioning block 434 can slide into the positioning groove 36, and the tool changer arm 43 can continue to move upward to the fully gripping position. At this time, the ferrule 433 also engages with the ferrule's claw groove 341. If the tool 39 rotates and shifts, causing the angular misalignment of the positioning slot 36, the positioning block 434 will be unable to be inserted, and its end face will abut against the outer wall of the ferrule, preventing the tool changer arm 43 from continuing to move upward to the predetermined position. The control system detects that the tool changer arm 43 is not in position, stops the tool change process and alarms, thereby preventing the improperly positioned tool 39 from being removed or installed, and protecting the spindle 13 interface.

[0042] Once the positioning block 434 is successfully inserted and the locking block 433 is engaged in the jaw slot 341, the tool changing arm 43 reaches the precise gripping position. The locking assembly is activated, and the electric actuator 44 drives the locking shaft 45 to extend and insert into the locking hole 46 on the sleeve. This is the second layer of transfer locking: the insertion and engagement of the locking shaft 45 and the locking hole 46 locks the sleeve and the tool changing arm 43 together, ensuring that the tool 39 will not wobble or shift during subsequent rotation and movement. The quick-change interface of the spindle 13 mounting head 14 is released, pushing the cylinder 42 to reverse its action, driving the tool changing arm 43 to move downwards, pulling the tool 39 off the spindle 13.

[0043] Step 2: Returning the old tool and selecting the new tool. The reversing motor 41 drives the tool changing arm 43 to rotate 180 degrees, moving the gripped old tool to an empty tool slot 33 above the tool holder 32. The push cylinder 42 drives the tool changing arm 43 to move upward again, inserting the tool 39 into the tool slot 33, where elastic clips on both sides of the tool slot 33 hold it in place. The locking shaft 45 retracts, and the tool changing arm 43 moves downward, separating from the tool 39. The tool changing motor 31 of the tool holder mechanism starts, driving the circular tool holder 32 to rotate, moving the tool slot 33 containing the new tool 39 required for the next process to the tool changing position facing the tool changing mechanism.

[0044] Step 3: Install the new tool. The tool changer arm 43 rotates, aligning with the ferrule of the target tool 39 on the tool holder 32. The cylinder 42 drives the tool changer arm 43 upward, performing the same double verification and locking process as in Step 1: the positioning block 434 inserts into the positioning groove 36 of the ferrule, the locking block 433 engages with the jaw groove 341, and then the locking shaft 45 inserts into the locking hole 46. After all conditions are met, the tool 39 is safely gripped. The tool changer arm 43 removes the new tool from the tool slot 33 and rotates it below the spindle 13. The cylinder 42 drives the tool changer arm 43 upward, pushing the ferrule of the new tool into the mounting head 14 of the spindle 13, and the quick-change interface of the mounting head 14 locks the ferrule. The locking shaft 45 retracts, the tool changer arm 43 moves downward and rotates to reset, leaving the machining area. This completes one automatic tool change cycle.

[0045] By incorporating a dual safety structure of mechanical verification and mechanical locking in the tool changing device, installation accidents caused by tool 39 posture deviation are prevented. Firstly, a physical verification is performed at the beginning of the gripping action using a positioning block 434 fixed on the tool changing arm 43 and a positioning groove 36 on the ferrule, ensuring that only tools 39 with the correct posture are operated. Secondly, after gripping, the tool 39 is temporarily fixed to the tool changing arm 43 by a rigid connection between the locking shaft 45 and the locking hole 46, eliminating degrees of freedom during transmission and ensuring precise installation alignment. This dual mechanism, implemented through a mechanical structure, offers high reliability and eliminates the need for high-precision vision sensors, enabling safe tool changing and improving equipment operational stability.

Claims

1. A tool changing device for bending machine die processing, characterized in that, include: The tool holder mechanism includes a tool holder (32) with multiple tool slots (33), the tool slots (33) being used to install a tool (39) via a ferrule, the outer surface of the ferrule having a claw groove (341) and a positioning groove (36), and the ferrule body (34) also having a locking hole (46). The tool changing mechanism includes a tool changing arm (43), a conversion drive assembly for driving the tool changing arm (43) to move and rotate, and a locking assembly disposed on the tool changing arm (43). The tool changing arm (43) is provided with a connecting claw (431), and the inner wall of the connecting claw (431) is provided with a locking block (433) that matches the shape of the locking claw groove (341) and a positioning block (434) that engages with the positioning groove (36). The locking assembly includes an electric actuator (44) and a locking shaft (45) driven by the electric actuator (44), the locking shaft (45) being inserted into a locking hole (46) on the sleeve.

2. The tool changing device for bending machine die processing according to claim 1, characterized in that, On the tool holder, elastic cards are fixedly provided on both sides corresponding to each tool groove (33). The elastic cards have elastic force toward the tool groove (33) and are used to press and fix the sleeve installed in the tool groove (33).

3. The tool changing device for bending machine die processing according to claim 1, characterized in that, The sleeve is cylindrical and has a through mounting hole (35) for inserting and clamping the tool (39) along its axial direction. The claw groove (341) is circumferentially formed on the outer surface of the sleeve body (34).

4. The tool changing device for bending machine die processing according to claim 1, characterized in that, The conversion drive assembly includes a commutator motor (41) and a push cylinder (42). A drive rod (47) is fixed in the middle of the tool changer arm (43). A gear ring (471) is mounted on the drive rod (47). A drive gear (411) that meshes with the gear ring (471) is mounted on the output shaft of the commutator motor (41). The output shaft of the push cylinder (42) is connected to the drive rod (47) to drive its axial movement.

5. The tool changing device for bending machine die processing according to claim 4, characterized in that, The teeth on both the drive gear (411) and the gear ring (471) are straight teeth.

6. The tool changing device for bending machine die processing according to claim 2, characterized in that, The elastic card has a V-shaped structure and includes two elastic sheets (37), with a distance sensor (38) disposed between the two elastic sheets (37).

7. The tool changing device for bending machine die processing according to claim 1, characterized in that, The tool holder (32) is circular, and a plurality of tool slots (33) are arranged around it. The tool holder (32) is driven to rotate by a tool changer motor (31).

8. A bending machine die processing equipment, characterized in that, It includes a base (2), a frame (1) disposed on the base (2) and a workpiece table (23), and a tool changing device as described in any one of claims 1 to 7; The frame (1) is provided with a movable transfer frame (12), the transfer frame (12) is mounted with a spindle (13), and the spindle (13) is fixedly provided with a mounting head (14) for mounting a tool (39); The tool changing device is located at the tool changing station on one side of the base (2).

9. A bending machine die processing equipment according to claim 8, characterized in that, The base (2) is provided with a track, and the bottom of the workpiece stage (23) is provided with a slider that cooperates with the track. The base (2) is also provided with a drive cylinder (24) that drives the workpiece stage (23) to move along the track.

10. A bending machine die processing equipment according to claim 8, characterized in that, The frame (1) is provided with a translation track. The transfer frame (12) moves parallel to the translation track by a first drive mechanism and moves vertically along the translation track by a second drive mechanism.

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