A nut column automatic processing device

Abstract

The present invention relates to an automatic processing device for nut columns, aiming to solve the technical problem of low functionality of current automatic processing devices for nut columns, comprising a frame, a rotating mechanism arranged in the frame, a limiting mechanism arranged at the center of the top end of the frame, and at least one tapping mechanism arranged at the top end of the frame relative to the limiting mechanism; the limiting mechanism comprises a rotating component and a limiting component B, the rotating component is fixedly arranged at the output end of the rotating mechanism, a plurality of angle grooves are provided in an annular equidistant structure on the rotating component, a limiting component A is arranged on the angle groove, an adjusting component is arranged on the rotating component, and the limiting component B is fixedly arranged at the top end of the frame relative to the tapping mechanism; the adjusting component comprises a transmission part and an adjusting part, both of which are arranged on the rotating component, the transmission part input end is fixedly connected to the adjusting part output end, and the transmission part output end is meshedly connected to the connecting ends of a plurality of limiting components A. The present invention has the advantage of high functionality.

Description

Technical Field

[0001] The invention relates to the technical field of nut column processing, and in particular to an automatic processing device for a nut column. Background Art

[0002] The nut column is a widely used fastener with an internal thread, including a cylindrical nut column, a full hexagonal nut column, and a semi-hexagonal nut column. The nut column needs to be tapped during the production process. The existing nut column tapping has many automated processing equipment, one of which is an automatic processing device for full hexagonal nut columns and semi-hexagonal nut columns, including a rotating mechanism, a limiting mechanism is arranged on the top of the rotating mechanism, a plurality of angle grooves are arranged in a ring-shaped equidistant structure on the disc, an arc-shaped baffle is arranged on the outer side of the disc relative to the angle groove position, the arc-shaped baffle corresponds to several of the angle grooves, to prevent the hexagonal nut column in the angle groove from shifting during the tapping process, a feeding mechanism is arranged relative to one of the angle groove positions, a discharging mechanism is arranged relative to the other angle groove position, a tapping mechanism is arranged relative to the arc-shaped baffle and above the corresponding one or more angle grooves, the feeding mechanism feeds the angle groove, the tapping mechanism taps the corresponding hexagonal nut column, after the tapping is completed, the rotating mechanism rotates, and the hexagonal nut column in the next angle groove is sequentially sent to the bottom of the tapping mechanism for tapping.

[0003] However, although the automatic processing device for the hexagonal nut column has a high degree of automation, it can only process hexagonal nut columns of a single size and has low functionality. In view of this, we propose an automatic processing device for the nut column. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, meet actual needs, and provide an automatic processing device for nut columns to solve the technical problem that the current automatic processing device for nut columns has low functionality.

[0005] In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: designing a nut column automatic processing device, including a frame, a rotating mechanism is arranged in the frame, a limiting mechanism is arranged at the center of the top of the frame, and at least one tapping mechanism is arranged at the top of the frame relative to the position of the limiting mechanism;

[0006] The limit mechanism includes a rotating assembly and a limit assembly B, the rotating assembly is fixedly arranged at the output end of the rotating mechanism, the rotating assembly is provided with a plurality of angle grooves in an annular structure with equal spacing, the angle grooves are provided with a limit assembly A, the rotating assembly is provided with an adjustment assembly, and the limit assembly B is fixedly arranged at the top of the frame relative to the position of the tapping mechanism;

[0007] Wherein, the adjustment component includes a transmission part and an adjustment part, and the transmission part and the adjustment part are both arranged on the rotating component. The input end of the transmission part is fixedly connected to the output end of the adjustment part, and the output end of the transmission part is meshedly connected to several connecting ends of the limit components A.

[0008] Preferably, the rotating component includes a bottom disc, which is fixedly mounted at the output end of the rotating mechanism, a mounting cavity A is provided at the top of the bottom disc, a rotating groove is provided at the bottom of the mounting cavity A, a connecting column is fixedly mounted at the center of the mounting cavity A, a top disc is fixedly mounted at the top of the connecting column, the angle groove is provided on the outer edge surface of the top disc, and a mounting cavity B is provided at the bottom of the top disc.

[0009] Preferably, sliding grooves A are provided on the four side walls of the corner groove.

[0010] Preferably, the limit assembly A includes a limit slider and a tooth block in a circular structure, the limit slider is slidably arranged on the slide groove A, the limit slider is provided with an installation groove at one end close to the center of the angle groove, a magnetic block is fixedly installed on the installation groove, a round rod is fixedly arranged at the bottom end of the limit slider, the tooth block is arranged below the angle groove, a plurality of guide grooves are provided on the tooth block relative to the positions of the round rods, a guide ring block is movably connected to the guide groove, the guide ring block is rotatably connected to the round rod, a rotating shaft is fixedly arranged at the bottom end of the tooth block, and the rotating shaft is rotatably connected to the bottom end of the installation cavity A.

[0011] Preferably, the transmission part includes a connecting rod A and a swivel, the connecting rod A is rotatably arranged at the bottom end of the installation cavity A, the top end of the connecting rod A passes through the installation cavity A and is rotatably connected to the top end of the installation cavity B, a gear is fixedly provided at the bottom of the connecting rod A, the gear is rotatably arranged on the rotating groove relative to the position of the swivel, and inner and outer gear rings are fixedly provided at the top of the swivel, the inner tooth ends of the inner and outer gear rings are meshedly connected with the gears, and the outer tooth ends of the inner and outer gear rings are meshedly connected with the tooth blocks.

[0012] Preferably, the adjusting part includes a worm wheel, a worm and a connecting rod B, the worm wheel is fixedly arranged at the top of the connecting rod A, the worm is rotatable relative to the worm wheel and is arranged in the installation cavity B, the worm is meshingly connected with the worm wheel, a bevel gear A is fixedly arranged on the worm, the connecting rod B is rotatable relative to the bevel gear A and is arranged at the top of the installation cavity B, a bevel gear B is fixedly arranged at the bottom of the connecting rod B, the bevel gear B is meshingly connected with the bevel gear A, and the top of the connecting rod B passes through the top disc and is fixedly provided with an adjusting screw block A.

[0013] Preferably, the limiting component B includes an arc block, which is fixed at the top of the frame relative to the tapping mechanism, and two slide grooves B are opened at one end of the arc block close to the angle groove relative to two of the angle grooves, and a mortgage block is slidably connected to the slide groove B, and the mortgage block is threadedly connected to a screw at one end away from the slide groove B, and a rotating rod is fixed at one end of the screw away from the slide groove B, and the rotating rod passes through the arc block at one end away from the slide groove B and is fixed with an adjusting screw block B, and the rotating rod is rotatably connected to the arc block.

[0014] Preferably, the width of the mortgage block is smaller than the opening width of the corner slot, the shape of the mortgage block is adapted to the arc block, and both ends of the mortgage block close to the slide slot B are provided with chamfers.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention arranges a limit component A on the angle groove, and sets a limit component B to cooperate with the limit cavity to limit and fix the hexagonal nut column, so as to prevent the hexagonal nut column in the angle groove from displacement during the tapping process. The limit cavity of the limit component A is adjusted by the adjustment component, so that the limit mechanism can be applied to hexagonal nut columns of different sizes, thereby improving the application range of the limit mechanism and solving the technical problem of low functionality of the current automatic processing device for nut columns.

[0017] 2. The present invention has a specific design for the transmission part, so that the rotation of the connecting rod A drives the gear to rotate, and drives the inner and outer gear rings to rotate, which has a deceleration effect and facilitates the precise adjustment of the limit cavity. In addition, the rotation of the inner and outer gear rings drives all the gear blocks to rotate, causing the limit cavities of all limit assemblies A to change synchronously, which is convenient for adjustment.

[0018] 3. Through the specific design of the adjustment part, the present invention makes it possible to use a tool to rotate the adjusting screw block A, the connecting rod B and the bevel gear B to rotate, so that the bevel gear A rotates to drive the worm to rotate, and the worm wheel rotates to drive the connecting rod A to rotate. The worm gear drive method has a deceleration effect, which further facilitates the precise adjustment of the limit cavity, and the self-locking effect of the worm gear makes it unnecessary to fix it additionally after the adjustment is completed, making the adjustment simpler and more convenient.

[0019] 4. The present invention provides a chamfered corner at both ends of the pressing block close to the slide groove B, so that when the hexagonal nut column in the limiting cavity moves to the chamfer of the pressing block, if the hexagonal nut column does not fit perfectly with the limiting cavity, the chamfer of the pressing block can more smoothly squeeze the hexagonal nut column into the limiting cavity, and the shape of the pressing block is adapted to the arc block, so that the inner arc diameter of the pressing block is larger than the outer movement circular diameter of the hexagonal nut column, so that the hexagonal nut column can move normally with the limiting cavity until the hexagonal nut column moves to the center of the arc surface of the pressing block, and the center of the arc surface of the pressing block cooperates with the limiting cavity to limit and fix the hexagonal nut column. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a partial structural schematic diagram of the present invention;

[0022] Figure 3 It is a schematic diagram of the use state of the limiting mechanism of the present invention;

[0023] Figure 4 It is a schematic diagram of the disassembly of the limit mechanism structure of the present invention;

[0024] Figure 5 for Figure 4 A magnified schematic diagram of the local structure;

[0025] Figure 6 It is a schematic diagram of the explosion structure of the limiting mechanism of the present invention;

[0026] Figure 7 for Figure 6 A magnified schematic diagram of the local structure;

[0027] Figure 8 for Figure 7 Schematic diagram of some structures;

[0028] Fig. 9 It is a schematic diagram of the cross-sectional structure of the limit component B of the present invention;

[0029] Fig.10 It is a reference schematic diagram of the corner groove and the mortgage block of the present invention;

[0030] In the figure: 1, frame; 2, rotating mechanism; 3, limiting mechanism; 4, tapping mechanism; 5, rotating assembly; 6, limiting assembly A; 7, adjusting assembly; 8, limiting assembly B;

[0031] 50, corner groove; 51, bottom disc; 52, mounting cavity A; 53, rotating groove; 54, connecting column; 55, top disc; 56, mounting cavity B; 57, slide groove A;

[0032] 61. Sliding block; 62. Mounting groove; 63. Magnetic block; 64. Round rod; 65. Gear block; 66. Guide groove; 67. Guide ring block; 68. Rotating shaft;

[0033] 71. Transmission unit; 72. Adjustment unit;

[0034] 81. arc block; 82. slideway B; 83. mortgage block; 84. screw rod; 85. rotating rod; 86. adjusting screw block B;

[0035] 711, connecting rod A; 712, gear; 713, swivel; 714, inner and outer gear rings;

[0036] 721. Worm wheel; 722. Worm; 723. Bevel gear A; 724. Connecting rod B; 725. Bevel gear B; 726. Adjusting screw A. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0038] Embodiment: A nut column automatic processing device, see Figures 1 to 10 , comprising a frame 1, a rotating mechanism 2 is arranged in the frame 1, a limiting mechanism 3 is arranged at the center of the top of the frame 1, and at least one tapping mechanism 4 is arranged at the top of the frame 1 relative to the limiting mechanism 3;

[0039] The limit mechanism 3 includes a rotating assembly 5 and a limit assembly B8. The rotating assembly 5 is fixedly arranged at the output end of the rotating mechanism 2. The rotating assembly 5 is provided with a plurality of angle grooves 50 in an annular structure with equal spacing. The angle grooves 50 are provided with a limit assembly A6. The rotating assembly 5 is provided with an adjustment assembly 7. The limit assembly B8 is fixedly arranged at the top of the frame 1 relative to the tapping mechanism 4.

[0040] Among them, the adjustment component 7 includes a transmission part 71 and an adjustment part 72, and the transmission part 71 and the adjustment part 72 are both arranged on the rotating component 5, the input end of the transmission part 71 is fixedly connected with the output end of the adjustment part 72, and the output end of the transmission part 71 is meshedly connected with a plurality of connection ends of the limit components A6. The present invention arranges the limit component A6 on the angle slot 50, and sets the limit component B8 to cooperate with the limit cavity to limit and fix the hexagonal nut column, so as to prevent the displacement of the hexagonal nut column in the angle slot during the tapping process, and adjusts the limit cavity of the limit component A6 by adjusting the adjustment component 7, so that the limit mechanism 3 can be used for hexagonal nut columns of different sizes, thereby improving the application range of the limit mechanism 3 and solving the technical problem that the current automatic processing device for nut columns has low functionality. In addition, the rotating mechanism 2 and the tapping mechanism 4 of the present invention are prior art, which are pointed out for the convenience of understanding. The feeding mechanism and the discharging mechanism are also prior art and are not described in detail.

[0041] Specifically, the rotating assembly 5 includes a bottom disc 51, which is fixedly mounted at the output end of the rotating mechanism 2, a mounting cavity A52 is formed at the top of the bottom disc 51, a rotating groove 53 is formed at the bottom of the mounting cavity A52, a connecting column 54 is fixedly mounted at the center of the mounting cavity A52, a top disc 55 is fixedly mounted at the top of the connecting column 54, an angle groove 50 is formed on the outer edge of the top disc 55, and a mounting cavity B56 is formed at the bottom of the top disc 55. Through the above arrangement, the present invention enables the rotating mechanism 2 to drive the rotating assembly 5 to rotate.

[0042] Furthermore, sliding grooves A57 are provided on the four side walls of the corner groove 50 .

[0043] Furthermore, the limit assembly A6 includes a limit slider 61 and a tooth block 65 with a circular structure. The limit slider 61 is slidably arranged on the slide groove A57. The limit slider 61 is provided with a mounting groove 62 at one end near the center of the angle groove 50. A magnetic block 63 is fixedly installed on the mounting groove 62. A round rod 64 is fixedly arranged at the bottom end of the limit slider 61. The tooth block 65 is arranged below the angle groove 50. A plurality of guide grooves 66 are provided on the tooth block 65 relative to the plurality of round rods 64. A guide ring block 67 is movably connected to the guide groove 66. The guide ring block 67 is rotatably connected to the round rod 64. A rotating shaft 68 is fixedly arranged at the bottom end of the tooth block 65. The rotating shaft 68 is rotatably connected to the bottom end of the mounting cavity A52. The present invention specifically designs the limit assembly A6 so that the tooth block 65 rotates and the guide groove 66 rotates synchronously, causing the guide ring block 67 to move on the guide groove 66 and drive the round rod 64, the limit slider 61 and the magnetic block 63 to move synchronously, so that the limit cavity formed by all the limit sliders 61 and the magnetic block 63 can be of variable size and is suitable for hexagonal nut columns of different sizes. The magnetic block 63 is provided to provide magnetic attraction to the hexagonal nut column to prevent the hexagonal nut column from being thrown out of the limit cavity due to centrifugal force when the rotating assembly 5 rotates to drive the limit assembly A6 to rotate.

[0044] It is worth noting that the transmission part 71 includes a connecting rod A711 and a rotating ring 713. The connecting rod A711 is rotatably arranged at the bottom of the installation cavity A52. The top of the connecting rod A711 passes through the installation cavity A52 and is rotatably connected to the top of the installation cavity B56. A gear 712 is fixedly arranged at the bottom of the connecting rod A711. The gear 712 is rotatably arranged on the rotating groove 53 relative to the position of the rotating ring 713. The top of the rotating ring 713 is fixedly arranged with an inner and outer toothed ring 714. The inner tooth ends of the inner and outer toothed rings 714 are meshed and connected with the gear 712, and the outer tooth ends of the inner and outer toothed rings 714 are meshed and connected with the tooth block 65. The present invention, through the specific design of the transmission part 71, makes the connecting rod A711 rotate to drive the gear 712 to rotate, and drives the inner and outer toothed rings 714 to rotate, which has a deceleration effect and facilitates the precise adjustment of the limit cavity. Moreover, the rotation of the inner and outer toothed rings 714 drives all the tooth blocks 65 to rotate, so that the limit cavities of all the limit assemblies A6 change synchronously, which is convenient for adjustment.

[0045] It is worth noting that the adjusting part 72 includes a worm wheel 721, a worm 722 and a connecting rod B724. The worm wheel 721 is fixedly arranged at the top of the connecting rod A711. The worm 722 is rotatable relative to the position of the worm wheel 721 and is arranged in the installation cavity B56. The worm 722 is meshingly connected with the worm wheel 721. A bevel gear A723 is fixedly arranged on the worm 722. The connecting rod B724 is rotatable relative to the position of the bevel gear A723 and is arranged at the top of the installation cavity B56. A bevel gear B725 is fixedly arranged at the bottom of the connecting rod B724. The bevel gear B725 is meshingly connected with the bevel gear A723. The top of the connecting rod B724 passes through the top disc 55 and is fixedly provided with an adjusting screw block A726. Through the specific design of the adjustment part 72, the present invention makes it possible to use a tool to rotate the adjusting screw block A726, the connecting rod B724 and the bevel gear B725 to rotate, so that the bevel gear A723 rotates to drive the worm 722 to rotate, and the worm wheel 721 rotates to drive the connecting rod A711 to rotate. The drive mode of the worm gear has a deceleration effect, which further facilitates the precise adjustment of the limit cavity, and the self-locking effect of the worm gear makes it unnecessary to fix it additionally after the adjustment is completed, so that the adjustment is simpler and more convenient.

[0046] It is worth mentioning that the limit assembly B8 includes an arc block 81, which is fixedly arranged at the top of the frame 1 relative to the tapping mechanism 4. The arc block 81 has two slide grooves B82 at one end close to the angle groove 50 relative to two of the angle grooves 50. A mortgage block 83 is slidably connected to the slide groove B82. The end of the mortgage block 83 away from the slide groove B82 is threadedly connected to a screw 84. The end of the screw 84 away from the slide groove B82 is fixedly provided with a rotating rod 85. The end of the rotating rod 85 away from the slide groove B82 passes through the arc block 81 and is fixedly provided with an adjusting screw block B86. The rotating rod 85 is rotatably connected to the arc block 81. Through the above arrangement, the present invention enables the rotating rod 85 to drive the screw 84 to rotate when the adjusting screw block B86 is rotated using a tool, so that the arc block 81 slides along the slide groove B82, and cooperates with the limit cavity of the limit assembly A6 to limit and fix the hexagonal nut column, which can be adjusted according to the specific size of the hexagonal nut column.

[0047] In addition, the width of the mortgage block 83 is smaller than the opening width of the angle slot 50, the shape of the mortgage block 83 is adapted to the arc block 81, and the two ends of the mortgage block 83 close to the slide groove B82 are both chamfered. The present invention sets the mortgage block 83 to have chamfers at both ends of the side close to the slide groove B82, so that when the hexagonal nut column in the limiting cavity moves to the chamfer of the mortgage block 83, if the hexagonal nut column does not fit perfectly with the limiting cavity, the chamfer of the mortgage block 83 can more smoothly squeeze the hexagonal nut column into the limiting cavity, and the shape of the mortgage block 83 is set to be adapted to the arc block 81, so that the inner arc diameter of the mortgage block 83 is larger than the outer movement diameter of the hexagonal nut column, so that the hexagonal nut column can move normally with the limiting cavity until the hexagonal nut column moves to the center of the arc surface of the mortgage block 83, and the center of the arc surface of the mortgage block 83 cooperates with the limiting cavity to limit and fix the hexagonal nut column.

[0048] Working principle: adjust the size of the limit assembly A6 according to the size of the hexagonal nut column, use a tool to rotate the adjustment screw block A726, the connecting rod B724 and the bevel gear B725 rotate, causing the bevel gear A723 to rotate and drive the worm 722 to rotate, so that the worm wheel 721 rotates to drive the connecting rod A711 to rotate, and the connecting rod A711 rotates to drive the gear 712 to rotate, and drives the inner and outer gear rings 714 to rotate, so that the tooth block 65 rotates, and the guide groove 66 rotates synchronously, so that the guide ring block 67 moves on the guide groove 66 and drives the round rod 64, the limit slider 61 and the magnetic block 63 to move synchronously, so that the size of the limit cavity formed by all the limit sliders 61 and the magnetic block 63 changes to match the size of the hexagonal nut column;

[0049] Adjust the position of the mortgage block 83 according to the size of the hexagonal nut column, use a tool to rotate the adjustment screw block B86, and the rotating rod 85 drives the screw rod 84 to rotate, so that the arc block 81 slides along the slide groove B82 to the appropriate position;

[0050] The intermittent rotation of the rotating mechanism 2 drives the limiting mechanism 3 to rotate, and the hexagonal nut columns in the limiting cavities rotate synchronously to appropriate positions. The arc center of the mortgage block 83 cooperates with the limiting cavity to limit and fix the hexagonal nut column, and the tapping mechanism 4 taps the hexagonal nut column.

[0051] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An automatic processing device for nut columns, comprising a frame (1), a rotating mechanism (2) arranged inside the frame (1), a limiting mechanism (3) arranged at the center of the top end of the frame (1), and at least one tapping mechanism (4) arranged at the top end of the frame (1) relative to the limiting mechanism (3); It is characterized in that The limiting mechanism (3) comprises a rotating assembly (5) and a limiting assembly B (8), wherein the rotating assembly (5) is fixedly arranged at the output end of the rotating mechanism (2), a plurality of angle grooves (50) are provided in an annular structure with equal spacing, a limiting assembly A (6) is arranged on the angle grooves (50), an adjusting assembly (7) is arranged on the rotating assembly (5), and the limiting assembly B (8) is fixedly arranged at the top end of the frame (1) relative to the tapping mechanism (4); The adjusting component (7) comprises a transmission part (71) and an adjusting part (72), the transmission part (71) and the adjusting part (72) are both arranged on the rotating component (5), the input end of the transmission part (71) is fixedly connected to the output end of the adjusting part (72), and the output end of the transmission part (71) is meshingly connected to a plurality of connecting ends of the limiting components A (6); The rotating assembly (5) comprises a bottom disc (51), the bottom disc (51) being fixedly mounted on the output end of the rotating mechanism (2), a mounting cavity A (52) being formed at the top of the bottom disc (51), a rotation groove (53) being formed at the bottom of the mounting cavity A (52), a connecting column (54) being fixedly mounted at the center of the mounting cavity A (52), a top disc (55) being fixedly mounted at the top of the connecting column (54), the angle groove (50) being formed on the outer edge surface of the top disc (55), and a mounting cavity B (56) being formed at the bottom of the top disc (55); The four side walls of the corner groove (50) are each provided with a slide groove A (57); The limiting assembly A (6) comprises a limiting slider (61) and a tooth block (65) in a circular segment structure, wherein the limiting slider (61) is slidably arranged on the slide groove A (57), and an installation groove (62) is provided at one end of the limiting slider (61) close to the center of the angle groove (50), and a magnetic block (63) is fixedly installed on the installation groove (62), and a round rod (64) is fixedly arranged at the bottom end of the limiting slider (61), and the tooth block (65) is arranged below the angle groove (50), and a plurality of guide grooves (66) are provided on the tooth block (65) at positions corresponding to the plurality of round rods (64), and a guide ring block (67) is movably connected to the guide groove (66), and the guide ring block (67) is rotatably connected to the round rod (64), and a rotating shaft (68) is fixedly arranged at the bottom end of the tooth block (65), and the rotating shaft (68) is rotatably connected to the bottom end of the installation cavity A (52); The transmission part (71) comprises a connecting rod A (711) and a rotating ring (713), wherein the connecting rod A (711) is rotatably arranged at the bottom end of the installation cavity A (52), the top end of the connecting rod A (711) passes through the installation cavity A (52) and is rotatably connected to the top end of the installation cavity B (56), a gear (712) is fixedly arranged at the bottom of the connecting rod A (711), the gear (712) is rotatably arranged on the rotating groove (53) relative to the position of the rotating ring (713), and an inner and outer toothed ring (714) is fixedly arranged at the top end of the rotating ring (713), the inner toothed ends of the inner and outer toothed ring (714) are meshingly connected to the gear (712), and the outer toothed ends of the inner and outer toothed ring (714) are meshingly connected to the gear block (65); The adjusting portion (72) comprises a worm wheel (721), a worm (722) and a connecting rod B (724); the worm wheel (721) is fixedly arranged at the top of the connecting rod A (711); the worm (722) is rotatably arranged in the mounting cavity B (56) relative to the worm wheel (721); the worm (722) is meshingly connected with the worm wheel (721); a bevel gear A (723) is fixedly arranged on the worm (722); the connecting rod B (724) is rotatably arranged at the top of the mounting cavity B (56) relative to the bevel gear A (723); a bevel gear B (725) is fixedly arranged at the bottom end of the connecting rod B (724); the bevel gear B (725) is meshingly connected with the bevel gear A (723); the top end of the connecting rod B (724) passes through the top disc (55) and is fixedly provided with an adjusting screw block A (726).

2. The automatic processing device for nut columns according to claim 1, characterized in that: The limit assembly B (8) comprises an arc block (81), the arc block (81) being fixedly arranged at the top end of the frame (1) relative to the tapping mechanism (4), and two slide grooves B (82) being provided at one end of the arc block (81) close to the angle groove (50) relative to two of the angle grooves (50), a mortgage block (83) being slidably connected to the slide groove B (82), an end of the mortgage block (83) being threadedly connected to a screw rod (84) at a distance from the slide groove B (82), a rotating rod (85) being fixedly arranged at one end of the screw rod (84) being away from the slide groove B (82), an end of the rotating rod (85) being away from the slide groove B (82) passing through the arc block (81) and being fixedly arranged with an adjusting screw block B (86), and the rotating rod (85) being rotatably connected to the arc block (81).

3. The automatic processing device for nut columns according to claim 2, characterized in that: The width of the mortgage block (83) is smaller than the opening width of the angle slot (50), the shape of the mortgage block (83) is adapted to the arc block (81), and both ends of the mortgage block (83) close to the slide slot B (82) are chamfered.

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