Automatic tool changing mechanism of rotary table type honing machine

Abstract

The utility model relates to a carousel type honing machine automatic tool changing mechanism and belongs to the technical field of automatic tool changing mechanism, including, tool assembly, including the tool cover, its one end is equipped with the connecting shaft, the other end is equipped with the honing tool, constitutes a honing tool, in the course of changing the tool, the honing tool as a whole is moved in and out, the tool magazine support is installed on the honing machine, its front side is fixed with the wire rail mounting plate, the wire rail subassembly, including the guide rail sliding block, the sliding block baffle and the cylinder installation support. The carousel type honing machine automatic tool changing mechanism is through adopting servo motor control, and the tool changing speed is fast, and the reliability is good, can greatly improve the production efficiency, when the tool reaches the honing frequency, the program will automatically stop and change the tool. In addition, the tool can be selected arbitrarily through the program control, the empty tool position has the automatic reminding function, the tool standby position and honing position are equipped with the sensor, confirm the tool, and maintenance is convenient, and the structure is simple and compact, reduces the installation space.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic tool changing mechanisms, specifically an automatic tool changing mechanism for a rotary honing machine. Background Technology

[0002] In the field of modern machining, honing technology is widely used in the manufacturing process of various parts due to its high precision and high-quality machining effects. As a key piece of equipment for realizing this technology, the efficiency and reliability of the honing machine's tool changing system directly affect production efficiency and machining quality.

[0003] Traditional honing machine tool changing systems typically employ manual or semi-automatic methods, which have several drawbacks. Firstly, manual tool changing is cumbersome, requiring frequent tool removal and installation by operators. This is not only time-consuming and labor-intensive but also prone to human error leading to inaccurate tool installation, thus affecting machining accuracy. Secondly, while semi-automatic tool changing systems improve efficiency to some extent, their suboptimal structural design still results in problems such as long tool changing times and unstable tool handling. For example, some semi-automatic tool changing systems are prone to tool shaking or falling off during tool handling, leading to tool changing failures and increased equipment downtime. Therefore, a rotary honing machine automatic tool changing mechanism is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic tool changing mechanism for a rotary honing machine, which has the advantages of fast tool changing speed, high reliability, and significantly improved production efficiency, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic tool changing mechanism for a rotary honing machine includes a tool assembly, comprising a tool sleeve, one end of which is equipped with a connecting shaft and the other end with a honing tool, forming a honing tool. During the tool changing process, the honing tool is moved in and out as a whole.

[0007] The tool magazine bracket is installed on the honing machine, and a linear guide mounting plate is fixed to its front side;

[0008] The linear guide assembly includes a guide rail slider, a slider baffle, and a cylinder mounting bracket. The guide rail slider, slider baffle, and cylinder mounting bracket are all fixed on the linear guide mounting plate. A shim is fixed on the guide rail slider. A tool feeding cylinder is fixed on the cylinder mounting bracket. A floating joint is fixed on the outside of the piston rod of the tool feeding cylinder. The floating joint is fixed on a joint connecting plate. The joint connecting plate is connected to a movable bracket. The movable bracket is fixed on the shim and moves together with the guide rail slider.

[0009] The motor assembly includes a movable bracket, a motor mounting bracket, a motor adjustment plate, a servo motor, a pinion gear, and a large gear. The movable bracket is connected to the motor mounting bracket. The motor adjustment plate is fixedly mounted on the motor mounting bracket. The servo motor is fixedly mounted on the motor adjustment plate. A pinion gear is fixed to the outside of the output shaft of the servo motor. The pinion gear meshes with the large gear. Gear guards are provided on the outside of the pinion gear and the large gear.

[0010] The bearing assembly includes a fixed shaft, a skeleton oil seal, an upper end cover, an angular contact ball bearing, a bearing housing, an inner spacer, an outer spacer, a lock nut, and a lower end cover. The fixed shaft is mounted on a motor mounting bracket. A skeleton oil seal is fixed to the outside of the fixed shaft, and an upper end cover is fixed to the outside of the skeleton oil seal. The lower side of the upper end cover abuts against the angular contact ball bearing. The fixed shaft is enclosed by the bearing housing. An inner spacer is provided on the outside of the fixed shaft, and an outer spacer is provided on the inner wall of the bearing housing. The inner spacer abuts against the inner ring of the angular contact ball bearing, and the outer spacer abuts against the outer ring of the angular contact ball bearing. An angular contact ball bearing is also provided on one side of the fixed shaft. The bearing is limited by locking it below the shaft with a lock nut. The lower end cover is fixed to the lower side of the bearing housing.

[0011] The tool magazine assembly includes a tool magazine, a jaw fixing plate, jaws, a shoulder-ringed fixing hinge pin, a straight-column-ringed fixing hinge pin, a retaining ring, a spring, a tool position sensor bracket, a sensor, a return screw, and a return point bracket. The tool magazine is fixed below the bearing seat. Six jaw fixing plates are provided on the tool magazine. The distance between the jaw fixing plates and the center of the tool magazine is adjustable. The jaw fixing plates are provided with jaws on the left and right sides. The jaws are connected to the jaw fixing plates through shoulder-ringed fixing hinge pins and straight-column-ringed fixing hinge pins. Honing tools are gripped by the jaws. There are corresponding sensors on the six tool positions to detect the presence or absence of tools. The sensors are fixed on the tool position sensor bracket.

[0012] Furthermore, the distance between the gripper fixing plate and the center of the tool magazine can be finely adjusted by adjusting the nut to achieve precise tool positioning.

[0013] Furthermore, the connection structure between the gripper and the gripper fixing plate includes a shoulder-ring fixed hinge pin and a straight-column-ring fixed hinge pin. The inner shoulder-ring fixed hinge pin is limited by a retaining spring on its upper side, while the outer straight-column-ring fixed hinge pin is connected by a spring. This structural design ensures the stability and reliability of the tool gripping.

[0014] Furthermore, each of the six tool positions on the tool magazine disk is equipped with a sensor to detect the tool position status in real time, thereby improving the accuracy and safety of the tool changing process.

[0015] Furthermore, the tool magazine disk is equipped with a return screw, and a sensor is mounted above the return screw. The sensor is fixed by a return point bracket and is used to detect the return point position of the tool magazine disk, ensuring that the tool changing mechanism can accurately reset at the beginning of each tool changing operation.

[0016] Compared with the prior art, this utility model provides an automatic tool changing mechanism for a rotary honing machine, which has the following advantages:

[0017] This rotary honing machine features an automatic tool changer controlled by a servo motor, resulting in fast tool changing speeds, high reliability, and significantly improved production efficiency. The machine automatically stops and changes tools once the required number of honing cycles has been reached. Furthermore, the machine allows for arbitrary tool selection via program control, and an automatic tool idle position reminder function is provided. Sensors are installed at both the tool standby and honing positions to confirm tool availability. Maintenance and repair are convenient, and the machine boasts a simple and compact structure, reducing installation space requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a right-side plan view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the key, pinion, gear and tool magazine disc of this utility model;

[0021] Figure 4 This is a schematic diagram of the bearing assembly of this utility model;

[0022] Figure 5 This is a schematic diagram showing the positions of the angular contact ball bearing and the movable bracket of this utility model;

[0023] Figure 6 This is a top view of the structure of this utility model.

[0024] In the diagram: 7. Small gear, 8. Large gear, 9. Key, 10. Tool magazine disc, 11. Return screw, 12. Return bracket, 13. Gear cover, 14. Slider baffle, 15. Cylinder mounting bracket, 16. Tool feed cylinder, 17. Servo motor, 18. Floating joint, 19. Joint connecting plate, 20. Guide rail slider, 21. Skeleton oil seal, 22. Upper end cover, 23. Angular contact ball bearing, 24. Bearing housing, 25. Inner spacer, 26. Outer spacer, 27. Locking nut, 28. Lower end cover, 29. Elevating block, 30. Movable bracket, 31. Tool magazine bracket, 32. Linear rail mounting plate, 33. Motor mounting bracket, 34. Tool position sensor bracket, 35. Clamping jaw fixing plate, 36. Clamping jaw, 37. Shoulder-type hinge pin with buckle, 38. Straight-column type hinge pin with buckle, 39. Snap ring, 40. Fixed shaft, 41. Honed tool, 42. Spring, 43. Motor adjustment plate, 44. Sensor. Detailed Implementation

[0025] 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.

[0026] Please see Figures 1 to 6 An automatic tool changing mechanism for a rotary honing machine in this embodiment includes a tool assembly, which includes a tool sleeve with a connecting shaft at one end and a honing tool at the other end, forming a honing tool 41. During the tool changing process, the honing tool 41 is moved in and out as a whole.

[0027] In this embodiment, the tool magazine bracket 31 is installed on the honing machine, and a linear guide mounting plate 32 is fixed to its front side.

[0028] Specifically, the linear guide assembly includes a guide rail slider 20, a slider baffle 14, and a cylinder mounting bracket 15. The guide rail slider 20, slider baffle 14, and cylinder mounting bracket 15 are all fixed on the linear guide mounting plate 32. A shim block 29 is fixed on the guide rail slider 20. A tool feeding cylinder 16 is fixed on the cylinder mounting bracket 15. A floating joint 18 is fixed to the outside of the piston rod of the tool feeding cylinder 16. The floating joint 18 is fixed on the joint connecting plate 19. The joint connecting plate 19 is connected to the movable bracket 30. The movable bracket 30 is fixed on the shim block 29 and moves together with the guide rail slider 20. This tool changing equipment is controlled by a servo motor 17, which has a fast tool changing speed, good reliability, and can greatly improve production efficiency.

[0029] Specifically, the motor assembly includes a movable bracket 30, a motor mounting bracket 33, a motor adjustment plate 43, a servo motor 17, a pinion 7, and a gear 8. The movable bracket 30 is connected to the motor mounting bracket 33. The motor adjustment plate 43 is fixedly mounted on the motor mounting bracket 33. The servo motor 17 is fixedly mounted on the motor adjustment plate 43. A pinion 7 is fixed to the outside of the output shaft of the servo motor 17. The pinion 7 meshes with the gear 8. Gear guards 13 are provided on the outside of the pinion 7 and the gear 8. The gear 8 is mounted on the bearing seat 24.

[0030] Specifically, the bearing assembly includes a fixed shaft 40, a skeleton oil seal 21, an upper end cover 22, an angular contact ball bearing 23, a bearing housing 24, an inner spacer 25, an outer spacer 26, a lock nut 27, and a lower end cover 28. The fixed shaft 40 is mounted on a motor mounting bracket 33. A skeleton oil seal 21 is fixed to the outside of the fixed shaft 40, and an upper end cover 22 is fixed to the outside of the skeleton oil seal 21. The lower side of the upper end cover 22 abuts against the angular contact ball bearing 23. The fixed shaft 40 is enclosed by the bearing housing 24. An inner spacer 25 is provided on the outside of the fixed shaft 40, and an outer spacer 26 is provided on the inner wall of the bearing housing 24. The inner spacer 25 abuts against the inner ring of the angular contact ball bearing 23, and the outer spacer 26 abuts against the outer ring of the angular contact ball bearing 23. An angular contact ball bearing 23 is also provided on one side of the fixed shaft 40. The bearing is locked below the shaft by the lock nut 27 to limit the bearing position. The lower end cover 28 is fixed to the lower side of the bearing housing 24.

[0031] Specifically, the tool magazine assembly includes a tool magazine 10, a gripper fixing plate 35, grippers 36, a shoulder-ringed fixing hinge pin 37, a straight-column-ringed fixing hinge pin 38, a retaining ring 39, a spring 42, a tool position sensor bracket 34, a sensor 44, a return screw 11, and a return point bracket 12. The tool magazine 10 is fixed below the bearing seat 24. The tool magazine 10 is provided with six gripper fixing plates 35. The distance between the gripper fixing plates 35 and the center of the tool magazine 10 can be finely adjusted. The gripper fixing plates 35 are provided with grippers 36 on the left and right sides. The grippers 36 and the gripper fixing plates 35 are connected by the shoulder-ringed fixing hinge pin 37 and the straight-column-ringed fixing hinge pin 38. The honing tool 41 is gripped by the grippers 36. There are corresponding sensors 44 on each of the six tool positions to detect whether there is a tool. The sensors 44 are fixed on the tool position sensor bracket 34.

[0032] Specifically, the distance between the clamping jaw fixing plate 35 and the center of the tool magazine disk 10 can be finely adjusted by adjusting the nut to achieve precise tool positioning. Each of the six tool positions on the tool magazine disk 10 is equipped with a sensor 44 to detect the presence or absence of tools in real time, improving the accuracy and safety of the tool changing process. Its main function is to reduce non-cutting time during machining, increase tool changing speed, and thus improve the productivity of the honing machine and the entire production line. According to production needs, a certain number of standby tool positions are set on the honing machine, respectively installing rough and fine honing tools for production and reserve new tools for use. One honing tool 41 corresponds to one standby tool position, enabling the replacement between rough and fine honing tools, as well as between old and new rough and fine honing tools. A detection sensor 44 is set at each tool standby position to check for the presence or absence of tools. The next program operation can only continue when a tool is detected; otherwise, the machine stops and an alarm sounds. A tool counting function is set on the honing machine's operating panel, automatically replacing the tool when it reaches the set number of honing cycles.

[0033] Specifically, during tool loading, when honing tool 41 is required, servo motor 17 drives pinion 7 to rotate, and the meshing large gear 8 drives bearing seat 24 to rotate, thereby rotating the designated tool position on tool magazine 10 to the tool retrieval position. Tool feeding cylinder 16 pushes forward, pushing the honing tool 41 on gripper 36 towards the tool retrieval mechanism. After the tool retrieval mechanism grasps the honing tool 41, the honing tool 41 is fixed, tool feeding cylinder 16 retracts, and gripper 36 opens under the action of spring 42. After the honing tool 41 is removed, the sensor 44 detects the position of the honing tool 41. If the honing tool 41 is still detected, there is a problem with the honing process, and the machine tool stops to proceed to the next step. Otherwise, it proceeds normally. Since the tool magazine 10 drives the honing tool 41 and the return screw 11 to rotate, the sensor 44 does not rotate. Therefore, after the tool is loaded, it needs to be returned to its original position. The sensor 44 detects the return screw 11, indicating that the return is complete.

[0034] Specifically, the connection structure between the gripper 36 and the gripper fixing plate 35 includes a shoulder-ring fixed hinge pin 37 and a straight-pin-ring fixed hinge pin 38. The inner shoulder-ring fixed hinge pin 37 is limited by a retaining spring 39, and the outer straight-pin-ring fixed hinge pin 38 is connected by a spring 42. This structural design ensures the stability and reliability of tool gripping. The tool magazine disk 10 is provided with a return screw 11, and a sensor 44 is equipped above the return screw 11. The sensor 44 is fixed by the return point bracket 12 and is used to detect the return point position of the tool magazine disk 10, ensuring that the tool changing mechanism can accurately reset at the beginning of each tool changing operation.

[0035] It should be noted that when the honing tool 41 needs to be changed, the servo motor 17 rotates the corresponding tool position to the tool take-up position, the tool feeding cylinder 16 pushes forward, pushing the gripper 36 towards the tool take-up mechanism. The gripper 36 opens under the action of the spring 42, clamping the honing tool 41. The tool take-up mechanism releases the honing tool 41, the tool feeding cylinder 16 retracts, the honing tool 41 is retracted, and the servo motor 17 continues to rotate the honing tool 41 to the tool take-up position for tool loading, completing one cycle.

[0036] The working principle of the above embodiments is as follows:

[0037] During use, when honing tool 41 is needed, servo motor 17 drives pinion 7 to rotate, and the meshing large gear 8 drives bearing seat 24 to rotate, thereby rotating the designated tool position on tool magazine 10 to the tool-retrieving position. Tool feed cylinder 16 pushes forward, pushing the honing tool 41 on gripper 36 towards the tool-retrieving mechanism. After the tool-retrieving mechanism grasps the honing tool 41, it is fixed in place. Tool feed cylinder 16 retracts, and under the action of spring 42, gripper 36 opens, and honing tool 41 is removed. After the honing tool 41 is removed, sensor 44 detects the position of the grasped honing tool 41. If the honing tool 41 is still detected, there is a problem with the grasping process, and the machine tool... Stop the next action; otherwise, proceed normally. Since the tool magazine 10 drives the honing tool 41 and the return screw 11 to rotate, the sensor 44 does not rotate. Therefore, after loading the tool, it needs to be returned to its original position. The sensor 44 detects the return screw 11, indicating that the return is complete. When the honing tool 41 needs to be changed, the servo motor 17 rotates the corresponding tool position to the tool pick-up position. The tool feed cylinder 16 pushes forward, pushing the gripper 36 towards the tool pick-up mechanism. The gripper 36 opens under the action of the spring 42, clamping the honing tool 41. The tool pick-up mechanism releases the honing tool 41, the tool feed cylinder 16 retracts, and the honing tool 41 is retracted. The servo motor 17 continues to rotate the tool 41 that needs to be honed to the tool pick-up position for loading, completing one cycle.

[0038] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that can achieve its beneficial effects can be implemented.

[0039] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic tool changer for a rotary honing machine, characterized in that, include: The tool assembly includes a tool holder, one end of which is equipped with a connecting shaft and the other end with a honing tool, forming a honing tool (41). During the tool changing process, the honing tool (41) is moved in and out as a whole. Tool magazine bracket (31) is installed on honing machine, and a linear guide mounting plate (32) is fixed to its front side; The linear guide assembly includes a guide rail slider (20), a slider baffle (14), and a cylinder mounting bracket (15). The guide rail slider (20), slider baffle (14), and cylinder mounting bracket (15) are all fixed on the linear guide mounting plate (32). A shim block (29) is fixed on the guide rail slider (20). A tool feeding cylinder (16) is fixed on the cylinder mounting bracket (15). A floating joint (18) is fixed on the outside of the piston rod of the tool feeding cylinder (16). The floating joint (18) is fixed on the joint connecting plate (19). The joint connecting plate (19) is connected to the movable bracket (30). The movable bracket (30) is fixed on the shim block (29) and moves together with the guide rail slider (20). The motor assembly includes a movable bracket (30), a motor mounting bracket (33), a motor adjustment plate (43), a servo motor (17), a pinion (7), and a gear (8). The movable bracket (30) is connected to the motor mounting bracket (33). The motor adjustment plate (43) is fixedly mounted on the motor mounting bracket (33). The servo motor (17) is fixedly mounted on the motor adjustment plate (43). A pinion (7) is fixed to the outside of the output shaft of the servo motor (17). The pinion (7) meshes with the gear (8). Gear guards (13) are provided on the outside of the pinion (7) and the gear (8). The bearing assembly includes a fixed shaft (40), a skeleton oil seal (21), an upper end cover (22), an angular contact ball bearing (23), a bearing housing (24), an inner spacer (25), an outer spacer (26), a lock nut (27), and a lower end cover (28). The fixed shaft (40) is mounted on a motor mounting bracket (33). The skeleton oil seal (21) is fixed to the outside of the fixed shaft (40), and the upper end cover (22) is fixed to the outside of the skeleton oil seal (21). The lower side of the upper end cover (22) abuts against the angular contact ball bearing (23). 40) Enclosed by bearing housing (24), the fixed shaft (40) is provided with an inner spacer (25) on the outside, and an outer spacer (26) is provided on the inner wall of the bearing housing (24). The inner spacer (25) pushes against the inner ring of the angular contact ball bearing (23), and the outer spacer (26) pushes against the outer ring of the angular contact ball bearing (23). An angular contact ball bearing (23) is also provided on one side of the fixed shaft (40). The bearing is limited by locking it below the shaft with a lock nut (27). The lower end cover (28) is fixed on the lower side of the bearing housing (24). The tool magazine assembly includes a tool magazine (10), a jaw fixing plate (35), a jaw (36), a hinge pin with a shoulder buckle (37), a straight-column buckle fixing hinge pin (38), a retaining ring (39), a spring (42), a tool position sensor bracket (34), a sensor (44), a return screw (11), and a return point bracket (12). The tool magazine (10) is fixed below the bearing seat (24). Six jaw fixing plates (35) are provided on the tool magazine (10). 5) The distance to the center of the tool magazine (10) can be finely adjusted. The gripper fixing plate (35) is provided with grippers (36) on the left and right sides. The grippers (36) and the gripper fixing plate (35) are connected by a shoulder buckle fixing type hinge pin (37) and a straight column buckle fixing type hinge pin (38). The honing tool (41) is gripped by the grippers (36). There are corresponding sensors (44) on each of the six tool positions to detect whether there is a tool. The sensors (44) are fixed on the tool position sensor bracket (34).

2. The automatic tool changing mechanism for a rotary honing machine according to claim 1, characterized in that: The distance between the clamp fixing plate (35) and the center of the tool magazine disc (10) can be finely adjusted by adjusting the nut to achieve precise positioning of the tool.

3. The automatic tool changing mechanism for a rotary honing machine according to claim 1, characterized in that: The connection structure between the gripper (36) and the gripper fixing plate (35) includes a shoulder-ring fixed hinge pin (37) and a straight-pin ring fixed hinge pin (38). The inner shoulder-ring fixed hinge pin (37) is limited by a snap ring (39) on its upper side, and the outer straight-pin ring fixed hinge pin (38) is connected by a spring (42). This structural design ensures the stability and reliability of the tool gripping.

4. The automatic tool changing mechanism for a rotary honing machine according to claim 1, characterized in that: The tool magazine disk (10) is equipped with sensors (44) on each of the six tool positions to detect the tool position status in real time, thereby improving the accuracy and safety of the tool changing process.

5. The automatic tool changing mechanism for a rotary honing machine according to claim 1, characterized in that: The tool magazine disk (10) is provided with a return screw (11), and a sensor (44) is provided above the return screw (11). The sensor (44) is fixed by the return point bracket (12) and is used to detect the return point position of the tool magazine disk (10) to ensure that the tool changing mechanism can be accurately reset at the beginning of each tool changing operation.

Images