Numerical control folding arm type tapping machine

Abstract

The utility model relates to the field of tapping machines, and discloses a numerical control folding arm type tapping machine which comprises a folding arm assembly, a corner assembly and a tapping assembly, the corner assembly is rotationally connected to the folding arm assembly, the tapping assembly is hinged to the corner assembly, and the tapping assembly comprises a cross beam hinged to the corner assembly. The tapping device has the advantages that when threads of different sizes need to be machined, the anti-disengaging assembly is separated from the mounting block, the driving assembly enables the mounting ring to move downwards, one tapping head is separated from the linkage sleeve, then the switching assembly rotates till the tapping heads of other sizes coincide with the linkage sleeve, and the threads of the other sizes are machined. The driving assembly drives the mounting ring to move upwards, so that the corresponding mounting block on the tapping head is connected with the anti-disengaging assembly, then the fixing piece is used for fixing, the tapping head can machine threads of different sizes to meet different machining requirements without disassembly and assembly, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of tapping machines, in particular to a numerically controlled folding-arm tapping machine. Background Art

[0002] Folding arm tapping machine is a mechanical device used for processing threads, usually used for cutting threads on metal workpieces. It has a foldable arm that can adjust the position and angle of the workpiece as needed. By rotating the thread between the tool and the workpiece, threads can be formed on the workpiece.

[0003] Mechanical seals require a tapping machine for processing during the processing. For example, Chinese patent CN213560356U discloses an improved tapping machine for the production of boiler sootblower race cars. The tapping machine is equipped with a protective mechanism to effectively prevent iron chips and impurities from splashing and injuring people, and will not affect the production and processing efficiency. It is flexible, practical, safe and stable. However, when threads of different sizes need to be processed, the tapping head needs to be replaced, and the installation and removal of the tapping head is more troublesome. Therefore, we propose a CNC folding arm tapping machine to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a numerically controlled folding-arm tapping machine, which can process threads of different sizes to meet different processing requirements without disassembling the tapping head.

[0005] The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: a CNC folding arm tapping machine, comprising a folding arm assembly, a corner assembly and a tapping assembly, the corner assembly is rotatably connected to the folding arm assembly, the tapping assembly is hinged on the corner assembly, the tapping assembly comprises a crossbeam hinged on the corner assembly, a mounting frame installed on the crossbeam, a tapping motor installed on the mounting frame and a linkage sleeve connected to the output shaft of the tapping motor, a through hole is opened on the crossbeam, a mounting ring is movably installed on the through hole, a driving assembly for driving the mounting ring to move up and down is also installed in the mounting ring, a switching assembly is installed in the mounting ring, a tapping head is installed on the switching assembly, a mounting block is installed on the tapping head, an anti-slip assembly cooperating with the mounting block is installed on the linkage sleeve, and a fixing part is also provided on the linkage sleeve.

[0006] By adopting the above technical solution, when tapping the mechanical seal, tapping heads of different sizes are installed on the switching assembly. When threads of different sizes need to be processed, the anti-slip assembly is separated from the mounting block, and the driving assembly moves the mounting ring downward so that one of the tapping heads is separated from the linkage sleeve. Then the switching assembly is rotated until the tapping heads of other sizes coincide with the linkage sleeve. The driving assembly drives the mounting ring upward so that the mounting block corresponding to the tapping head is connected to the anti-slip assembly, and then fixed with a fixing piece. Then the tapping motor is started to drive the linkage sleeve to rotate, so that the tapping head correspondingly installed on the linkage sleeve also rotates. The tapping head can process threads of different sizes to meet different processing requirements without disassembly, which is more convenient to use.

[0007] The present invention is further configured as follows: a slider is installed on the mounting ring, and the mounting ring moves in the through hole via the slider.

[0008] By adopting the above technical solution, it is convenient to push the installation ring to move through the slider.

[0009] The utility model is further configured as follows: the driving assembly includes a mounting backplate installed on the inner wall of the through hole, a driving motor installed on the mounting backplate, a turntable connected to the output shaft of the driving motor, an eccentric column installed on the turntable, and a linkage rod hinged to the outside of the eccentric column, and the top of the linkage rod is hinged to the bottom of the slider.

[0010] By adopting the above technical solution, the drive motor starts to drive the turntable to rotate. When the turntable rotates, the horizontal height of the eccentric housing changes, so that the mounting ring on the slider is pushed up and down by the linkage rod, and the switching component is cooperated to connect different tapping heads with the linkage sleeve to process threads of different sizes.

[0011] The present invention is further configured as follows: the switching assembly includes a rotating ring rotatably connected to the inner side of the mounting ring and a fixed ring installed on the inner side of the rotating ring, and the tapping head is rotatably connected to the inner side of the fixed ring.

[0012] By adopting the above technical solution, the rotating ring rotates inside the mounting ring, so that the tapping heads on multiple fixed rings inside the mounting ring can be rotated to connect with the linkage sleeve. The rotating connection between the tapping head and the fixed ring makes it convenient for each tapping head to rotate synchronously with the linkage sleeve to process parts after being connected to the linkage sleeve.

[0013] The present invention is further configured as follows: the fixed rings are provided with no less than three and are distributed in a circular shape with equal distances inside the rotating ring.

[0014] By adopting the above technical solution, the actual number of fixing rings can be determined according to production requirements, and the tapping heads on multiple fixing rings can be rotatably connected to the linkage sleeve.

[0015] The present invention is further configured as follows: the bottom of the rotating ring extends to the bottom of the mounting ring, and a paddle is mounted on the rotating ring and is located below the mounting ring.

[0016] By adopting the above technical solution, the paddle can be turned to make the rotating ring rotate in the mounting ring, so that the tapping heads at different positions can be rotated to the bottom of the linkage sleeve and connected thereto.

[0017] The present invention is further configured as follows: the paddles are provided with no less than six and are distributed in a circular shape with equal distances on the rotating ring.

[0018] By adopting the above technical solution, the arrangement of multiple paddles makes it easier for the rotating ring to rotate within the mounting ring.

[0019] The present invention is further configured as follows: the anti-slip assembly comprises a connecting vertical groove and a connecting horizontal groove provided on the linkage sleeve, and the connecting vertical groove and the connecting horizontal groove are in a communicating state.

[0020] The utility model is further configured such that the distance between the left and right side walls in the connecting vertical groove is equal to the distance between the upper and lower side walls in the connecting horizontal groove, and the size of the mounting block matches the distance between the left and right side walls in the connecting vertical groove.

[0021] By adopting the above technical solution, when the driving assembly drives the mounting ring to move upward, the tapping head at the corresponding position extends to the inside of the linkage sleeve. At this time, the mounting block moves upward along the connecting vertical groove. After it moves to the point where it can no longer move upward, the tapping head rotates inside the fixed ring, causing the mounting block to move into the connecting horizontal groove. The connecting horizontal groove supports the mounting block from the bottom. When the tapping head rotates synchronously with the connecting sleeve for tapping, the tapping head can be prevented from falling off, thereby improving safety.

[0022] The utility model is further configured as follows: the fixing member is a bolt threadedly connected to the linkage sleeve, and the tapping head is provided with a thread groove adapted to the bolt.

[0023] By adopting the above technical solution, after the tapping head is connected to the linkage sleeve at the corresponding position, the bolts and the threaded grooves are used to connect them to achieve secondary fixation between the tapping head and the linkage sleeve, further preventing the tapping head from falling off when the tapping head and the connecting sleeve rotate synchronously for tapping, thereby further improving the safety of tapping.

[0024] The beneficial effect of the utility model is that when it is necessary to process threads of different sizes, the anti-slip assembly is separated from the mounting block, the driving assembly moves the mounting ring downward, so that one of the tapping heads is separated from the linkage sleeve, and then the switching assembly is rotated to overlap the tapping head of another size with the linkage sleeve, the driving assembly drives the mounting ring to move upward, so that the mounting block corresponding to the tapping head is connected to the anti-slip assembly, and then it is fixed with the fixing piece, and then the tapping motor is started to drive the linkage sleeve to rotate, so that the tapping head correspondingly installed on the linkage sleeve also rotates, and the tapping head can process threads of different sizes to meet different processing requirements without disassembly and assembly, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 It is a schematic diagram of the internal structure of the tapping assembly of the utility model;

[0028] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0029] Figure 4 It is a schematic diagram of the connection structure between the mounting ring and the switching assembly of the utility model.

[0030] In the figure, 1. folding arm assembly; 2. corner assembly; 3. tapping assembly; 31. crossbeam; 32. mounting frame; 33. tapping motor; 34. linkage sleeve; 4. through hole; 5. mounting ring; 6. drive assembly; 61. mounting back plate; 62. drive motor; 63. turntable; 64. eccentric column; 65. linkage rod; 7. switching assembly; 71. rotating ring; 72. fixing ring; 8. tapping head; 9. mounting block; 10. anti-slip assembly; 101. connecting vertical slot; 102. connecting horizontal slot; 11. fixing piece; 12. slider; 13. pick. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions of the present invention in conjunction with specific embodiments. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0032] See also Figure 1-4 The utility model provides a CNC folding arm tapping machine, including a folding arm assembly 1, a corner assembly 2 and a tapping assembly 3, the corner assembly 2 is rotatably connected to the folding arm assembly 1, the tapping assembly 3 is hinged on the corner assembly 2, and the tapping assembly 3 includes a crossbeam 31 hinged on the corner assembly 2, a mounting frame 32 installed on the crossbeam 31, a tapping motor 33 installed on the mounting frame 32, and a linkage sleeve 34 connected to the output shaft of the tapping motor 33. A through hole 4 is opened on the crossbeam 31, and a mounting ring 5 is movably installed in the through hole 4. A driving assembly 6 that drives the mounting ring 5 to move up and down is also installed in the mounting ring 5, a switching assembly 7 is installed in the mounting ring 5, a tapping head 8 is installed on the switching assembly 7, and a mounting block 9 is installed on the tapping head 8. An anti-slip assembly 10 cooperating with the mounting block 9 is installed on the linkage sleeve 34, and a fixing part 11 is also provided on the linkage sleeve 34.

[0033] When tapping the mechanical seal, tapping heads 8 of different sizes are installed on the switching assembly 7. When threads of different sizes need to be processed, the anti-slip assembly 10 is separated from the mounting block 9, and the driving assembly 6 moves the mounting ring 5 downward, so that one of the tapping heads 8 is separated from the linkage sleeve 34. Then the switching assembly 7 is rotated until the tapping head 8 of the other size coincides with the linkage sleeve 34. The driving assembly 6 drives the mounting ring 5 to move upward, so that the corresponding mounting block 9 on the tapping head 8 is connected to the anti-slip assembly 10, and then fixed with the fixing piece 11. Then the tapping motor 33 is started to drive the linkage sleeve 34 to rotate, so that the tapping head 8 correspondingly installed on the linkage sleeve 34 also rotates. The tapping head 8 can process threads of different sizes to meet different processing requirements without disassembly, which is more convenient to use.

[0034] A slider 12 is installed on the mounting ring 5 , and the mounting ring 5 moves in the through hole 4 via the slider 12 , so that the mounting ring 5 can be pushed to move by the slider 12 .

[0035] The driving assembly 6 includes a mounting back plate 61 mounted on the inner wall of the through hole 4, a driving motor 62 mounted on the mounting back plate 61, a turntable 63 connected to the output shaft of the driving motor 62, an eccentric column 64 mounted on the turntable 63, and a linkage rod 65 hinged to the outside of the eccentric column 64. The top of the linkage rod 65 is hinged to the bottom of the slider 12. When the driving motor 62 is started, the turntable 63 is driven to rotate. When the turntable 63 rotates, the horizontal height of the eccentric house 64 is changed, so that the linkage rod 65 is used to push the mounting ring 5 on the slider 12 up and down, and cooperate with the switching assembly 7 to connect different tapping heads 8 with the linkage sleeve 34 to process threads of different sizes.

[0036] The switching assembly 7 includes a rotating ring 71 rotatably connected to the inner side of the mounting ring 5 and a fixed ring 72 installed on the inner side of the rotating ring 71. The tapping head 8 is rotatably connected to the fixed ring 72, and the rotating ring 71 rotates in the mounting ring 5, so that the tapping heads 8 on multiple fixed rings 72 in the mounting ring 71 can be rotatably connected to the linkage sleeve 34. The rotatable connection between the tapping head 8 and the fixed ring 72 makes it convenient for each tapping head 8 to rotate synchronously with the linkage sleeve 34 to process parts after being connected to the linkage sleeve 34.

[0037] There are no less than three fixed rings 72 and they are distributed in a circular shape with equal distances inside the rotating ring 71. The actual number of fixed rings 72 can be determined according to production requirements, so that the tapping heads 8 on multiple fixed rings 72 can be rotatably connected to the linkage sleeve 34.

[0038] The bottom of the rotating ring 71 extends to the bottom of the mounting ring 5. The rotating ring 71 is provided with a paddle 13 located below the mounting ring 5. The paddle 13 is turned to facilitate the rotation of the rotating ring 71 in the mounting ring 5, so that the tapping heads 8 at different positions can be rotated to the bottom of the linkage sleeve 34 and connected to it.

[0039] There are no less than six paddles 13 and they are distributed in a circular shape with equal distances on the rotating ring 71 . The provision of multiple paddles 13 makes it easier for the rotating ring 71 to rotate in the mounting ring 5 .

[0040] The anti-slip component 10 includes a connecting vertical groove 101 and a connecting transverse groove 102 provided on the linkage sleeve 34. The connecting vertical groove 101 and the connecting transverse groove 102 are connected. The distance between the left and right side walls in the connecting vertical groove 101 is equal to the distance between the upper and lower side walls in the connecting transverse groove 102. The size of the mounting block 9 matches the distance between the left and right side walls in the connecting vertical groove 101. When the driving component 6 drives the mounting ring 5 to move upward, the tapping head 8 at the corresponding position extends to the inside of the linkage sleeve 34. At this time, the mounting block 9 moves upward along the connecting vertical groove 101. After it moves to a point where it can no longer move upward, the tapping head 8 rotates inside the fixing ring 72, so that the mounting block 9 moves into the connecting transverse groove 102. The connecting transverse groove 102 supports the mounting block 9 from the bottom. When the tapping head 8 rotates synchronously with the connecting sleeve 34 for tapping, the tapping head 8 can be prevented from falling off, which is safer.

[0041] The fixing part 11 is a bolt threadedly connected to the linkage sleeve 34, and the tapping head 8 is provided with a thread groove adapted to the bolt. When the tapping head 8 is connected to the linkage sleeve 34 at the corresponding position, the bolt and the thread groove are connected to realize secondary fixation between the tapping head 8 and the linkage sleeve 34, further preventing the tapping head 8 from falling off when the tapping head 8 and the connecting sleeve 34 rotate synchronously for tapping, thereby further improving the safety of tapping.

Claims

1. A CNC folding arm tapping machine, comprising a folding arm assembly (1), a corner assembly (2) and a tapping assembly (3), wherein the corner assembly (2) is rotatably connected to the folding arm assembly (1), the tapping assembly (3) is hinged on the corner assembly (2), the tapping assembly (3) comprises a crossbeam (31) hinged on the corner assembly (2), a mounting frame (32) mounted on the crossbeam (31), a tapping motor (33) mounted on the mounting frame (32), and a linkage sleeve (34) connected to the output shaft of the tapping motor (33), characterized in that: The crossbeam (31) is provided with a through hole (4), a mounting ring (5) is movably mounted in the through hole (4), a driving assembly (6) for driving the mounting ring (5) to move up and down is also mounted in the mounting ring (5), a switching assembly (7) is mounted in the mounting ring (5), a tapping head (8) is mounted on the switching assembly (7), a mounting block (9) is mounted on the tapping head (8), an anti-slip assembly (10) cooperating with the mounting block (9) is mounted on the linkage sleeve (34), and a fixing piece (11) is also provided on the linkage sleeve (34).

2. A CNC folding arm tapping machine according to claim 1, characterized in that: A slider (12) is installed on the mounting ring (5), and the mounting ring (5) moves in the through hole (4) via the slider (12).

3. A CNC folding arm tapping machine according to claim 2, characterized in that: The driving assembly (6) comprises a mounting back plate (61) mounted on the inner wall of the through hole (4), a driving motor (62) mounted on the mounting back plate (61), a turntable (63) connected to the output shaft of the driving motor (62), an eccentric column (64) mounted on the turntable (63), and a linkage rod (65) hinged to the outside of the eccentric column (64), wherein the top of the linkage rod (65) is hinged to the bottom of the slider (12).

4. A CNC folding arm tapping machine according to claim 3, characterized in that: The switching assembly (7) comprises a rotating ring (71) rotatably connected to the inner side of the mounting ring (5) and a fixed ring (72) mounted on the inner side of the rotating ring (71); the tapping head (8) is rotatably connected to the inner side of the fixed ring (72).

5. A CNC folding arm tapping machine according to claim 4, characterized in that: The fixed rings (72) are provided with no less than three and are distributed in an annular shape at equal distances within the rotating ring (71).

6. A CNC folding arm tapping machine according to claim 5, characterized in that: The bottom of the rotating ring (71) extends to the bottom of the mounting ring (5), and a paddle (13) located below the mounting ring (5) is mounted on the rotating ring (71).

7. A CNC folding arm tapping machine according to claim 6, characterized in that: The paddles (13) are provided with no less than six and are distributed in an annular manner and at equal distances on the rotating ring (71).

8. The CNC folding arm tapping machine according to claim 7, characterized in that: The anti-slip assembly (10) comprises a connecting vertical groove (101) and a connecting horizontal groove (102) provided on the linkage sleeve (34), and the connecting vertical groove (101) and the connecting horizontal groove (102) are in a communicating state.

9. The CNC folding arm tapping machine according to claim 8, characterized in that: The distance between the left and right side walls of the connecting vertical groove (101) is equal to the distance between the upper and lower side walls of the connecting horizontal groove (102), and the size of the mounting block (9) matches the distance between the left and right side walls of the connecting vertical groove (101).

10. The CNC folding arm tapping machine according to claim 9, characterized in that: The fixing member (11) is a bolt threadedly connected to the linkage sleeve (34), and the tapping head (8) is provided with a thread groove adapted to the bolt.

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