Tool magazine tool changing structure of machining center

Abstract

This utility model discloses a tool changer structure for a machining center, including a support plate. The upper end of the support plate has evenly distributed tool mounting seats via a rotating tool holder. Tools are fixedly connected to the lower surfaces of the tool mounting seats. An adjustable turntable is provided on the upper surface of the support plate, and an electric telescopic rod is provided on the upper surface of the turntable. A tool clamping block is fixedly connected to the upper side of the telescopic end of the electric telescopic rod. Limit grooves are provided at both the front and rear ends of the tool clamping block. The structure also includes a tool changing mechanism. The tool changing mechanism includes a locking block, a sliding block, a spring, and a rubber pad. The locking block is fixedly connected to the upper surface of the turntable. This tool changer structure for the machining center integrates the clamping and removal of the tool from the tool holders through the tool changing mechanism. The tool changing assembly clamps or releases the tool simultaneously as it moves downwards or upwards, improving tool changing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tool magazine changing technology, specifically a tool magazine changing structure for a machining center. Background Technology

[0002] During machining, materials need to be processed in various ways according to different design requirements. Different processing steps may require different cutting tools. Manual tool changing seriously affects the efficiency of machining. Usually, the tool magazine changing structure of the machining center is used for automatic tool changing.

[0003] In the existing tool changer structure of the machining center, the tool to be replaced is first moved to a specific position during operation. The tool is then clamped by the tool changing robot arm and moved to the position of the spindle to be installed. The spindle clamps the tool, and the tool change is completed.

[0004] Existing tool changer structures in machining centers require the robotic arm to clamp the tool first, and then control the robotic arm to move downwards to pull it out of the tool holder. These two steps are performed separately, which affects the tool changing efficiency. To address this, we propose a new tool changer structure for machining centers. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a tool changer structure for machining centers. Through the tool changing mechanism, the tool changing component integrates the process of clamping the tool and taking out the tool holder. The tool changing component clamps or releases the tool while moving downward or upward, which improves the tool changing efficiency and can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool magazine changing structure for a machining center, including a support plate, the upper end of which is provided with uniformly distributed tool mounting seats via a rotating tool holder, tools being fixedly connected to the lower surface of each tool mounting seat, an adjustable turntable on the upper surface of the support plate, an electric telescopic rod on the upper surface of the turntable, a tool clamping block being fixedly connected to the upper side of the telescopic end of the electric telescopic rod, and limit grooves being provided at both the front and rear ends of the tool clamping block, and also including a tool changing mechanism;

[0007] Tool changing mechanism: includes a locking block, a sliding block, a spring, and a rubber pad. The locking blocks are all fixedly connected to the upper surface of the turntable. The tool holding block has symmetrically distributed sliding blocks that are slidably connected inside. A spring is fixedly connected between each sliding block and the inner wall of the tool holding block. Each sliding block has a slanted groove at the end near the middle of the tool holding block. The slanted groove is installed in conjunction with the longitudinally adjacent locking block. A rubber pad is fixedly connected at the end of the sliding block away from the middle of the tool holding block. Through the tool changing mechanism, the tool changing assembly integrates the process of clamping the tool and removing the tool holder. The tool changing assembly clamps or releases the tool simultaneously as it moves downward or upward, improving the tool changing efficiency.

[0008] Furthermore, according to the tool changer structure of a machining center as described in the claim, the upper surface of the support plate is fixedly connected to a support block, the inside of the support block is rotatably connected to a rotating rod, the upper end of the rotating rod is fixedly connected to the lower surface of the turntable, the outer surface of the rotating rod is fixedly connected to a worm gear, the inside of the support block is rotatably connected to a worm, and the worm gear and the worm gear are meshed together to transmit driving force and make the turntable rotate.

[0009] Furthermore, a motor is fixedly connected to the upper surface of the support plate. The output shaft of the motor is fixedly connected to the right end of the worm gear. The input end of the motor is electrically connected to the output end of an external microcontroller to provide driving force.

[0010] Furthermore, a conductive slip ring is fixedly connected to the lower surface of the turntable, and a connecting contact point is fixedly connected to the outer surface of the support block. The connecting contact point is slidably connected to the inner arc surface of the conductive slip ring. The input end of the connecting contact point is electrically connected to the output end of an external microcontroller, and the output end of the conductive slip ring is electrically connected to the input end of an electric telescopic rod to prevent wire tangling.

[0011] Furthermore, the rotating tool holder includes a support column, a drive shaft, and a tool placement disk. The support column is fixedly connected to the upper surface of the support plate, and the drive shaft is rotatably connected inside the support column. The tool placement disk is fixedly connected to the upper surface of the drive shaft to control the rotation of the tool placement disk.

[0012] Furthermore, the rotating tool holder also includes a second motor, which is fixedly connected to the upper surface of the support plate. The output shaft of the second motor is fixedly connected to the lower end of the transmission shaft, and the input end of the second motor is electrically connected to the output end of an external microcontroller to provide driving force.

[0013] Furthermore, the rotating tool holder also includes a limiting block and a second spring. The limiting blocks are slidably connected to the placement grooves opened inside the tool placement disc, and the second spring is fixedly connected between the limiting blocks and the inner wall of the placement grooves to clamp the tool placement seat.

[0014] Furthermore, according to the tool magazine changing structure of a machining center as described in the claim, the outer surface of the tool mounting base is provided with an annular groove, and the annular groove is fitted with a limiting block located inside the same placement groove at one end near the tool mounting base to limit the tool placement base.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the tool changer structure of this machining center has the following advantages:

[0016] The tool changing mechanism integrates the clamping and removal of the tool from the tool holder. The tool changing assembly clamps or releases the tool simultaneously as it moves downward or upward, improving the tool changing efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0020] Figure 4 This is an enlarged structural diagram of section B of the present invention.

[0021] Figure 5 This is a schematic diagram of the right-side view of the present invention.

[0022] In the diagram: 1 Support plate, 2 Motor I, 3 Support block, 4 Support column, 5 Cutting tool, 6 Cutting tool placement tray, 7 Cutting tool mounting base, 8 Turntable, 9 Electric telescopic rod, 10 Tool changing mechanism, 101 Clamping block, 102 Sliding block, 103 Spring I, 104 Rubber pad, 11 Cutting tool clamping block, 12 Worm gear, 13 Worm wheel, 14 Motor II, 15 Drive shaft, 16 Spring II, 17 Limiting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5This embodiment provides a technical solution: a tool changer structure for a machining center, including a support plate 1. The upper end of the support plate 1 is provided with uniformly distributed tool mounting seats 7 via a rotating tool holder. The rotating tool holder includes a support column 4, a drive shaft 15, and a tool placement disk 6. The support column 4 is fixedly connected to the upper surface of the support plate 1. The drive shaft 15 is rotatably connected inside the support column 4. The tool placement disk 6 is fixedly connected to the upper surface of the drive shaft 15. The rotating tool holder also includes a second motor 14, which is fixedly connected to the upper surface of the support plate 1. The output shaft of the second motor 14 is fixedly connected to the lower end of the drive shaft 15. The input end of the second motor 14 is electrically connected to the output end of an external microcontroller. The rotating tool holder also... The system includes a limiting block 17 and a second spring 16. The limiting block 17 is slidably connected to a placement groove inside the tool placement tray 6. A second spring 16 is fixedly connected between the limiting block 17 and the inner wall of the placement groove. The outer surface of the tool mounting base 7 has annular grooves, which are fitted to the end of the limiting block 17 located within the same placement groove near the tool mounting base 7. A tool 5 is fixedly connected to the lower surface of the tool mounting base 7. An adjustable turntable 8 is provided on the upper surface of the support plate 1. An electric telescopic rod 9 is provided on the upper surface of the turntable 8. A tool clamping block 11 is fixedly connected to the upper side of the telescopic end of the electric telescopic rod 9. Limiting grooves are provided at both the front and rear ends of the tool clamping block 11. A support block 3 is fixedly connected to the upper surface of plate 1. A rotating rod is rotatably connected inside the support block 3. The upper end of the rotating rod is fixedly connected to the lower surface of the turntable 8. A worm gear 13 is fixedly connected to the outer surface of the rotating rod. A worm 12 is rotatably connected inside the support block 3. The worm gear 13 and the worm 12 are meshed together. A motor 2 is fixedly connected to the upper surface of the support plate 1. The output shaft of the motor 2 is fixedly connected to the right end of the worm 12. The input end of the motor 2 is electrically connected to the output end of an external microcontroller. A conductive slip ring is fixedly connected to the lower surface of the turntable 8. A connecting contact point is fixedly connected to the outer surface of the support block 3. The connecting contact point is slidably connected to the inner arc surface of the conductive slip ring. The input end of the connecting contact point is electrically connected to... The output of the external microcontroller and the output of the conductive slip ring are electrically connected to the input of the electric telescopic rod 9 to control the external microcontroller. The motor 14 is started, and the output shaft of the motor 14 rotates, which drives the transmission shaft 15 to rotate, causing the tool placement plate 6 to rotate. When the tool mounting seat 7 to be replaced moves to the appropriate position, the motor 14 is turned off, and the motor 2 is started. The output shaft of the motor 2 rotates, which drives the transmission rod to rotate, which drives the worm gear 13 to rotate, which drives the worm 12 to rotate, causing the turntable 8 to rotate, which drives the electric telescopic rod 9 to rotate, causing the tool clamping block 11 to rotate, and causing the limiting groove at the front end of the tool clamping block 11 to move to below the tool mounting seat 7 to be replaced. The tool changing mechanism 10 is also included.

[0025] Tool changing mechanism 10 includes a locking block 101, a sliding block 102, a spring 103, and a rubber pad 104. The locking blocks 101 are all fixedly connected to the upper surface of the turntable 8. The tool clamping block 11 has symmetrically distributed sliding blocks 102 slidably connected inside. Springs 103 are fixedly connected between each sliding block 102 and the inner wall of the tool clamping block 11. Each sliding block 102 has a groove near the center of the tool clamping block 11, and the groove engages with the longitudinally adjacent locking blocks 101. A rubber pad 104 is fixedly connected to the end of each sliding block 102 away from the center of the tool clamping block 11. When the external microcontroller is controlled, the electric telescopic rod 9 operates. The telescopic end of the electric telescopic rod 9 retracts, causing the tool clamping block 11 to move downwards. The locking block 101 presses against the groove on the sliding block 102, causing the sliding block 102 to move away from the center of the tool clamping block 11. The spring 103 extends, causing the rubber pad 104 to move, thereby... The tool mounting seat 7 is clamped. At this time, the telescopic end of the electric telescopic rod 9 continues to retract, pulling the tool mounting seat 7 downward. The tool mounting seat 7 presses against the limiting block 17, and the spring 16 retracts, thereby removing the tool mounting seat 7 from the placement slot. Similarly, the tool changing mechanism at the rear end of the tool clamping block 11 removes the tool mounting seat 7 from the spindle of the external machining center. At this time, the motor 2 is started, causing the tool clamping block 11 to rotate 180°. The telescopic end of the electric telescopic rod 9 extends, causing the tool clamping block 11 to move upward. The tool mounting seat 7 moves upward and presses against the limiting block 17 until the limiting block 17 enters the annular slot opened on the outer surface of the tool mounting seat 7. At the same time, the tool clamping block 11 rises, so that the locking block 101 no longer presses against the sliding block 102. The spring 103 retracts, pulling the sliding block 102 back to its original position and no longer pressing against the tool mounting seat 7. Similarly, the other side of the tool clamping block 11 installs the tool mounting seat 7 onto the spindle of the external machining center, completing the tool change.

[0026] The working principle of the tool changer structure of the machining center provided by this utility model is as follows: When using the tool changer structure of this machining center for tool changing, the external microcontroller is controlled to start motor 14. The output shaft of motor 14 rotates, driving the transmission shaft 15 to rotate, causing the tool placement plate 6 to rotate. When the tool mounting seat 7 to be replaced moves to the appropriate position, motor 14 is turned off, and motor 2 is started. The output shaft of motor 2 rotates, driving the transmission rod to rotate, driving the worm gear 13 to rotate, driving the worm 12 to rotate, causing the turntable 8 to rotate, driving the electric telescopic rod 9 to rotate, causing the tool clamping block 11 to rotate, and moving the limiting groove at the front end of the tool clamping block 11 to below the tool mounting seat 7 to be replaced. At this time, the external microcontroller is controlled to run the electric telescopic rod 9. The telescopic end of the electric telescopic rod 9 retracts, driving the tool clamping block 11 to move downward. The locking block 101 presses the inclined groove on the sliding block 102, causing the sliding block 102 to move away from the center of the tool clamping block 11. Spring 103 extends, causing rubber pad 104 to move and clamp the tool mounting seat 7. At this time, the telescopic end of the electric telescopic rod 9 continues to retract, pulling the tool mounting seat 7 downward. The tool mounting seat 7 presses against the limiting block 17, and spring 16 retracts, thereby removing the tool mounting seat 7 from the placement slot. Similarly, the tool changing mechanism at the rear end of the tool clamping block 11 removes the tool mounting seat 7 from the external machining center spindle. At this time, motor 2 is started, causing the tool clamping block 11 to rotate 180° and the electric telescopic rod 9 to extend. The telescopic end of lever 9 extends, causing the tool clamping block 11 to move upward. The tool mounting seat 7 moves upward and presses against the limiting block 17 until the limiting block 17 enters the annular slot on the outer surface of the tool mounting seat 7. At the same time, the tool clamping block 11 rises, so that the locking block 101 no longer presses against the sliding block 102. The spring 103 contracts, pulling the sliding block 102 back to its original position and no longer pressing against the tool mounting seat 7. Similarly, the other side of the tool clamping block 11 mounts the tool mounting seat 7 onto the spindle of the external machining center, completing the tool change.

[0027] It is worth noting that in the above embodiments, the motor 12 is an MZ751N2 servo motor, the motor 24 is a 180M-21520C5-E servo motor, and the electric telescopic pole 9 is a GRA-D6. The external microcontroller controls the operation of the motor 12, the motor 24 and the electric telescopic pole 9 using methods commonly used in the prior art.

[0028] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tool changer structure for a machining center, comprising a support plate (1), wherein the upper end of the support plate (1) is provided with uniformly distributed tool mounting seats (7) via a rotating tool holder, and tools (5) are fixedly connected to the lower surface of each tool mounting seat (7); an adjustable turntable (8) is provided on the upper surface of the support plate (1); an electric telescopic rod (9) is provided on the upper surface of the turntable (8); a tool clamping block (11) is fixedly connected to the upper side of the telescopic end of the electric telescopic rod (9); and limit grooves are provided at both the front and rear ends of the tool clamping block (11), characterized in that: It also includes a tool changing mechanism (10); Tool changing mechanism (10): includes a locking block (101), a sliding block (102), a spring (103), and a rubber pad (104). The locking blocks (101) are all fixedly connected to the upper surface of the turntable (8). The tool clamping block (11) is slidably connected to the sliding blocks (102). The sliding blocks (102) and the inner wall of the tool clamping block (11) are all fixedly connected to the spring (103). The sliding blocks (102) are all provided with a slanted groove at the end near the middle of the tool clamping block (11). The slanted groove is installed in conjunction with the longitudinally adjacent locking blocks (101). The sliding blocks (102) are all fixedly connected to a rubber pad (104) at the end away from the middle of the tool clamping block (11).

2. The tool changer structure for a machining center according to claim 1, characterized in that: The upper surface of the support plate (1) is fixedly connected to a support block (3), and the inside of the support block (3) is rotatably connected to a rotating rod. The upper end of the rotating rod is fixedly connected to the lower surface of the turntable (8), and the outer surface of the rotating rod is fixedly connected to a worm wheel (13). The inside of the support block (3) is rotatably connected to a worm (12), and the worm wheel (13) and the worm (12) are meshed together.

3. The tool changer structure for a machining center according to claim 2, characterized in that: The upper surface of the support plate (1) is fixedly connected to a motor (2), the output shaft of the motor (2) is fixedly connected to the right end of the worm (12), and the input end of the motor (2) is electrically connected to the output end of an external microcontroller.

4. The tool changer structure for a machining center according to claim 2, characterized in that: A conductive slip ring is fixedly connected to the lower surface of the turntable (8), and a connecting contact point is fixedly connected to the outer surface of the support block (3). The connecting contact point is slidably connected to the inner arc surface of the conductive slip ring. The input end of the connecting contact point is electrically connected to the output end of an external microcontroller, and the output end of the conductive slip ring is electrically connected to the input end of an electric telescopic rod (9).

5. The tool changer structure for a machining center according to claim 1, characterized in that: The rotating tool holder includes a support column (4), a drive shaft (15), and a tool placement disk (6). The support column (4) is fixedly connected to the upper surface of the support plate (1). The drive shaft (15) is rotatably connected inside the support column (4). The tool placement disk (6) is fixedly connected to the upper surface of the drive shaft (15).

6. The tool changer structure for a machining center according to claim 5, characterized in that: The rotating tool holder also includes a second motor (14), which is fixedly connected to the upper surface of the support plate (1). The output shaft of the second motor (14) is fixedly connected to the lower end of the transmission shaft (15), and the input end of the second motor (14) is electrically connected to the output end of an external microcontroller.

7. The tool changer structure for a machining center according to claim 1, characterized in that: The rotating tool holder also includes a limiting block (17) and a second spring (16). The limiting block (17) is slidably connected to the placement groove opened inside the tool placement plate (6), and the second spring (16) is fixedly connected between the limiting block (17) and the inner wall of the placement groove.

8. The tool changer structure for a machining center according to claim 7, characterized in that: The outer surface of the tool mounting base (7) is provided with annular slots, and the annular slots are all fitted with the end of the limiting block (17) located in the same placement slot that is close to the tool mounting base (7).

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