An automatic tool changer for a tapping machine

Abstract

This utility model relates to the field of automation technology and discloses an automatic tool changer for a tapping machine. It includes a motor, a connecting pipe fixedly connected to the lower side of the motor, a lifting ring slidably connected to the side wall of the connecting pipe, a housing fixedly connected to the outer side wall of the lifting ring, a support ring rotatably connected to the inner bottom wall of the housing, multiple storage racks on the inner side wall of the support ring, taps on the upper side of the storage racks, an electromagnet fixedly mounted at the output end of a cylinder, and a sleeve fixedly mounted at the output end of the motor. A fixing mechanism is provided on the inner side wall of the sleeve. This utility model, through the connecting pipe, lifting ring, housing, electromagnet, cylinder, fixing mechanism, support ring, housing, motor, storage racks, and sleeve, completes the tap replacement, thus solving the problem that frequent manual tool changes not only result in high labor costs but also low production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automation technology, and in particular to an automatic tool changer for a tapping machine. Background Technology

[0002] A tapping machine is a metalworking device primarily used to create internal threads (i.e., "tapping") on workpieces (such as steel, aluminum, and plastic). Its core function is to use a rotating tap (tool) to cut into the material, forming a standard threaded hole. It is widely used in machinery manufacturing, automotive parts, electronic components, and hardware accessories.

[0003] In existing small drilling and tapping equipment, manual tool changing is generally used; however, frequent manual tool changing not only results in high labor costs but also low production efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic tool changer for tapping machines, aiming to solve the problem that frequent manual tool changes not only result in high labor costs but also low production efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic tool changer for a tapping machine, comprising a motor, a connecting pipe fixedly connected to the lower side of the motor, a lifting ring slidably connected to the side wall of the connecting pipe, a housing fixedly connected to the outer side wall of the lifting ring, a support ring rotatably connected to the inner bottom wall of the housing, multiple storage racks provided on the inner side wall of the support ring, taps provided on the upper side of the storage racks, a through hole opened on the lower side of the housing, the taps passing through the through hole of the housing, a cylinder provided on the lower side of the housing, an electromagnet fixedly provided at the output end of the cylinder, one side of the electromagnet being in contact with the side wall of an adjacent tap, a sleeve fixedly provided at the output end of the motor, a fixing mechanism provided on the inner side wall of the sleeve, and both the output end of the motor and the sleeve being rotatably connected to the connecting pipe.

[0006] Preferably, the fixing mechanism includes a locking rod and an electromagnet connected to the locking rod. The electromagnet of the fixing mechanism is disposed inside the sleeve, and the locking rod of the fixing mechanism passes through the inner wall of the sleeve.

[0007] Preferably, a rack is provided on one side of the connecting pipe, a second motor is provided inside the lifting ring, and a first gear is fixedly provided at the output end of the second motor, the first gear and the rack being meshed together.

[0008] Preferably, the lifting ring is rotatably connected to a roller, and a groove is provided on the other side of the connecting pipe, with the outer wall of the roller and the inner wall of the groove fitting together.

[0009] Preferably, the inner wall of the sleeve and the outer wall of the upper end of the tap are fitted together, and the horizontal projection of the upper end of the tap is a regular hexagon.

[0010] Preferably, the outer wall of the upper end of the tap has a locking hole, and the inner wall of the locking hole fits against the outer wall of the fixing mechanism lever.

[0011] Preferably, a toothed ring is provided on the side wall of the support ring, a motor is provided on the inner side wall of the housing, and a gear is fixedly provided on the output end of the motor, the gear and the toothed ring are meshed and connected.

[0012] Preferably, the sidewall of the connecting pipe and the end of the storage rack away from the shell are spaced at a predetermined distance in the horizontal direction.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the shell moves up and down by sliding the connecting pipe and the lifting ring. The tap is fixed by the attraction of a pair of taps by an electromagnet and the extension and retraction of the cylinder. The tap is locked by the fixing mechanism. The support ring and the shell are rotated and connected. The tap is replaced by a motor, a storage rack and a sleeve. This solves the problem that frequent manual tool changing not only results in high labor costs but also low production efficiency.

[0015] 2. In this utility model, by setting a preset distance between the storage rack and the connecting pipe, the tap on the storage rack will not fall out of the gap between the storage rack and the connecting pipe during the operation of the device, thereby facilitating the replacement of the tap. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of an automatic tool changer for a tapping machine proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the connecting pipe of an automatic tool changer for a tapping machine proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the lifting ring of an automatic tool changer for a tapping machine proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the housing of an automatic tool changer for a tapping machine proposed in this utility model.

[0020] Legend:

[0021] 1. Motor 1; 2. Rack; 3. Lifting ring; 4. Cylinder; 5. Tap; 6. Housing; 7. Connecting pipe; 8. Slide groove; 9. Sleeve; 10. Fixing mechanism; 11. Roller; 12. Gear 1; 13. Motor 2; 14. Gear ring 1; 15. Storage rack; 16. Snap hole; 17. Motor 3; 18. Gear 2; 19. Electromagnet 1; 20. Support ring. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model provides an automatic tool changing device for a tapping machine, comprising a motor 1, a connecting pipe 7 fixedly connected to the lower side of the motor 1, a lifting ring 3 slidably connected to the side wall of the connecting pipe 7, a housing 6 fixedly connected to the outer side wall of the lifting ring 3, a support ring 20 rotatably connected to the inner bottom wall of the housing 6, a plurality of storage racks 15 provided on the inner side wall of the support ring 20, a tap 5 provided on the upper side of the storage rack 15, a through hole opened on the lower side of the housing 6, the tap 5 passing through the through hole of the housing 6, a cylinder 4 provided on the lower side of the housing 6, an electromagnet 19 fixedly provided at the output end of the cylinder 4, one side of the electromagnet 19 being in contact with the side wall of an adjacent tap 5, a sleeve 9 fixedly provided at the output end of the motor 1, a fixing mechanism 10 provided on the inner side wall of the sleeve 9, and both the output end of the motor 1 and the sleeve 9 being rotatably connected to the connecting pipe 7.

[0024] In this embodiment, Figure 1The directions are front, back, left, and right. Specifically, the sleeve 9 is used to wrap the upper end of the tap 5 for rotation; the fixing mechanism 10 is used to fix the tap 5 inside the sleeve 9; when the tap 5 needs to be replaced, the lifting ring 3 slides down through the connecting pipe 7 and the lifting ring 3, causing the housing 6 to slide down. Driven by the output end of the cylinder 4, the electromagnet 19 moves towards the center of the housing 6, so that one side of the electromagnet 19 fits against the side wall of the tap 5, attracting and fixing the tap 5. Driven by the fixing mechanism 10, the locking of the tap 5 is released, the lifting ring 3 continues to move down, causing the tap 5 to move down to below the connecting pipe 7. By the contraction of the output end of the cylinder 4, the tap 5 moves towards the inner side wall of the housing 6 and slides into the storage rack 15, so that the upper side of the storage rack 15 fits against the inner top wall of the tap 5. The electromagnet 19 is de-energized, releasing the electromagnet 19 from attracting the tap 5.

[0025] The rotating connection between the support ring 20 and the housing 6 allows the housing 6 to rotate, rotating the corresponding tap 5 to face the electromagnet 19. The electromagnet 19 is energized, attracting and fixing the new tap 5. Driven by the output of the cylinder 4, the tap 5 is moved to the center position of the housing 6. The upward sliding of the lifting ring 3 drives the tap 5 to move upward. Driven by the output of the motor 1, the sleeve 9 rotates, causing the upper end of the tap 5 to slide into the sleeve 9. The fixing mechanism 10 locks the tap 5, thus completing the replacement of the tap 5. This solves the problem that frequent manual tool changes not only result in high labor costs but also low production efficiency.

[0026] Reference Figure 2 The fixing mechanism 10 includes a locking rod and an electromagnet connected to the locking rod. The electromagnet of the fixing mechanism 10 is disposed inside the sleeve 9, and the locking rod of the fixing mechanism 10 passes through the inner wall of the sleeve 9.

[0027] Specifically, the lever of the fixing mechanism 10 is made of permanent magnet material. By changing the attraction and repulsion of the electromagnet in the fixing mechanism 10, the reciprocating motion of the lever in the fixing mechanism 10 is realized, thereby realizing the locking function of the fixing mechanism 10.

[0028] Reference Figure 1 , Figure 2 and Figure 3 A rack 2 is provided on one side of the connecting pipe 7, and a motor 13 is provided inside the lifting ring 3. A gear 12 is fixedly provided at the output end of the motor 13, and the gear 12 and the rack 2 are meshed together.

[0029] Specifically, the output of motor 13 drives gear 12 to rotate. Through the meshing connection between gear 12 and rack 2, the reaction force of gear 12's rotation causes motor 13 to move up and down. Through the connection between motor 13 and lifting ring 3, the function of lifting ring 3 moving up and down is realized.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The lifting ring 3 is internally connected to a roller 11, and the other side of the connecting pipe 7 is provided with a sliding groove 8. The outer wall of the roller 11 and the inner wall of the sliding groove 8 are in contact.

[0031] Specifically, when the lifting ring 3 and the connecting pipe 7 slide up and down, the roller 11 rolls on the slide groove 8. Through the contact between the outer wall of the roller 11 and the inner wall of the slide groove 8, the lifting ring 3 will not deviate in the horizontal direction when it moves up and down, which is conducive to realizing the function of the lifting ring 3 moving up and down.

[0032] Reference Figure 2 and Figure 4 The inner wall of the sleeve 9 fits against the upper outer wall of the tap 5, and the horizontal projection of the upper end of the tap 5 is a regular hexagon.

[0033] Specifically, the output of motor 1 drives the sleeve 9 to rotate. Due to the design of the upper end of the tap 5, the inner wall of the sleeve 9 fits with the upper outer wall of the tap 5, thereby driving the tap 5 to rotate, thus realizing the tapping function of the device.

[0034] Reference Figure 2 and Figure 4 The tap 5 has a locking hole 16 on its outer wall at the upper end, and the inner wall of the locking hole 16 fits against the outer wall of the locking rod of the fixing mechanism 10.

[0035] Specifically, the tap 5 is fixed by moving the locking rod on the fixing mechanism 10 into the locking hole 16, and the tap 5 is released by moving the locking rod on the fixing mechanism 10 out of the locking hole 16.

[0036] Reference Figure 4 A gear ring 14 is provided on the side wall of the support ring 20, and a motor 3 17 is provided on the inner side wall of the housing 6. A gear 2 18 is fixedly provided at the output end of the motor 3 17, and the gear 2 18 and the gear ring 14 are meshed and connected.

[0037] Specifically, the output of motor 317 drives gear 218 to rotate. Through the meshing connection between gear 218 and gear ring 14, and the rotational connection between support ring 20 and the inner bottom wall of housing 6, support ring 20 is driven to rotate, thereby realizing the replacement action of tap 5.

[0038] Reference Figure 1, Figure 2 and Figure 4 The side wall of the connecting pipe 7 and the end of the storage rack 15 away from the housing 6 are pre-spaced horizontally.

[0039] Specifically, after the tap 5 is replaced, the lifting ring 3 slides upward a certain distance, causing the lower end of the tap 5 on the sleeve 9 to protrude for tapping. The preset distance between the storage rack 15 and the connecting pipe 7 ensures that the tap 5 on the storage rack 15 will not fall out of the gap between the storage rack 15 and the connecting pipe 7 during the operation of the device, thus facilitating the replacement of 5.

[0040] Working principle: When tap 5 needs to be replaced, the output end of motor 2 13 drives gear 12 to rotate. Through the meshing connection between gear 12 and rack 2, the reaction force of gear 12 rotation causes motor 2 13 to move up and down. Through the contact between the outer wall of roller 11 and the inner wall of slide groove 8, the lifting ring 3 and connecting pipe 7 can slide up and down.

[0041] The downward movement of the lifting ring 3 causes the housing 6 to slide downward. Driven by the output end of the cylinder 4, the electromagnet 19 moves towards the center of the housing 6, so that one side of the electromagnet 19 fits against the side wall of the tap 5, attracting and fixing the tap 5. The locking mechanism 10 releases the tap 5. The lifting ring 3 continues to move downward, causing the tap 5 to move downward to below the connecting pipe 7. The contraction of the output end of the cylinder 4 causes the tap 5 to move towards the inner side wall of the housing 6 and slide into the storage rack 15. The electromagnet 19 is de-energized, releasing the electromagnet 19 from attracting the tap 5.

[0042] Driven by the output of motor 17, gear 18 rotates. Through the meshing connection between gear 18 and gear ring 14, and the rotational connection between support ring 20 and the inner bottom wall of housing 6, support ring 20 rotates, rotating the corresponding tap 5 to face electromagnet 19. Electromagnet 19 is energized, attracting and fixing the tap 5 to be replaced. Driven by the output of cylinder 4, tap 5 is moved to the center position of housing 6. Through the upward movement of lifting ring 3 and the drive of the output of motor 1, sleeve 9 rotates, causing the upper end of tap 5 to slide into sleeve 9. The fixing mechanism 10 locks tap 5, thus completing the replacement of tap 5. This solves the problem that frequent manual tool changes not only result in high labor costs but also low production efficiency.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tapping machine automatic tool changer comprising a motor (1), characterized in that: A connecting pipe (7) is fixedly connected to the lower side of the motor (1). A lifting ring (3) is slidably connected to the side wall of the connecting pipe (7). A housing (6) is fixedly connected to the outer side wall of the lifting ring (3). A support ring (20) is rotatably connected to the inner bottom wall of the housing (6). A plurality of storage racks (15) are provided on the inner side wall of the support ring (20). A tap (5) is provided on the upper side of the storage rack (15). A through hole is opened on the lower side of the housing (6). The tap (5) A cylinder (4) is provided on the lower side of the housing (6) through the through hole. An electromagnet (19) is fixedly provided at the output end of the cylinder (4). One side of the electromagnet (19) is in contact with the side wall of a nearby tap (5). A sleeve (9) is fixedly provided at the output end of the motor (1). A fixing mechanism (10) is provided on the inner side wall of the sleeve (9). The output end of the motor (1) and the sleeve (9) are rotatably connected to the connecting pipe (7).

2. The tap changer according to claim 1, characterized in that: The fixing mechanism (10) includes a locking rod and an electromagnet connected to the locking rod. The electromagnet of the fixing mechanism (10) is located inside the sleeve (9), and the locking rod of the fixing mechanism (10) passes through the inner wall of the sleeve (9).

3. The automatic tool changer for a tapping machine according to claim 1, characterized in that: A rack (2) is provided on one side of the connecting pipe (7), and a motor (13) is provided inside the lifting ring (3). A gear (12) is fixedly provided at the output end of the motor (13), and the gear (12) and the rack (2) are meshed together.

4. The automatic tool changer for a tapping machine according to claim 1, characterized in that: The lifting ring (3) is rotatably connected to a roller (11), and a groove (8) is provided on the other side of the connecting pipe (7). The outer wall of the roller (11) and the inner wall of the groove (8) are in contact.

5. The automatic tool changer for a tapping machine according to claim 1, characterized in that: The inner wall of the sleeve (9) and the outer wall of the upper end of the tap (5) are in contact, and the horizontal projection of the upper end of the tap (5) is a regular hexagon.

6. The automatic tool changer for a tapping machine according to claim 1, characterized in that: The tap (5) has a locking hole (16) on its upper outer wall, and the inner wall of the locking hole (16) fits against the outer wall of the locking rod of the fixing mechanism (10).

7. The automatic tool changer for a tapping machine according to claim 1, characterized in that: A gear ring (14) is provided on the side wall of the support ring (20), and a motor (17) is provided on the inner side wall of the housing (6). A gear (18) is fixedly provided at the output end of the motor (17), and the gear (18) and the gear ring (14) are meshed together.

8. The automatic tool changer for a tapping machine according to claim 1, characterized in that: The side wall of the connecting pipe (7) and the end of the storage rack (15) away from the shell (6) are pre-spaced horizontally.

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