Nut tapping machine

Abstract

The present invention discloses a nut tapping machine, which comprises a working platform. A positioning station and a tapping station are arranged on the working platform. A tapping mechanism is installed on the working platform. The upper surface of the working platform is rotatably installed with a feeding turntable. The center of the feeding turntable is connected with a rotating shaft, and the rotating shaft is connected with a driving motor. A plurality of blanking grooves penetrating through the feeding turntable are evenly arranged in a ring around the rotating shaft on the feeding turntable. A plurality of fixing mechanisms are evenly distributed outside the blanking grooves. The fixing mechanism comprises a fixing cylinder, and the output end of the fixing cylinder is provided with a fixing clamping plate. An arc-shaped clamping groove is arranged on one side of the fixing clamping plate close to the blanking groove. The tapping mechanism comprises a support frame, a Y-axis linear motor is installed on the support frame, an X-axis linear motor is installed on the mover of the Y-axis linear motor, a tapping motor is installed on the mover of the X-axis linear motor, and a tapping tap is installed on the output end of the tapping motor.

Description

Technical Field

[0001] The present invention relates to the technical field of nut processing equipment, in particular to the technical field of nut tapping machines.

Background Art

[0002] A nut is a screw cap, a part used to tighten together with a bolt or screw rod. It is an element that must be used in all production and manufacturing machinery. According to different materials, it is divided into several major types such as carbon steel, stainless steel, and non-ferrous metals.

[0003] When producing nuts, it is necessary to process the internal threads of the nuts through a tapping machine. When the existing nut tapping machine is processing, generally, the nut is placed in the slotted grooves arranged in a ring on the turntable. After the turntable rotates the nut to the tapping station, the nut is clamped by the clamping cylinder on the outside, and then the tapping mechanism taps the nut. This tapping method cannot well ensure that the nut is vertically fixed every time during tapping, nor can it ensure that the tapping tap can be aligned with the center position of the nut for tapping every time, resulting in the skew of the processed threaded hole and affecting the product quality.

Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and propose a nut tapping machine that can position and fix the nut to prevent the tapping machine from tapping skew.

[0005] To achieve the above purpose, the present invention proposes a nut tapping machine, which includes a working platform. A positioning station and a tapping station are provided on the working platform. A tapping mechanism is installed on the working platform. The upper surface of the working platform is rotatably installed with a feeding turntable. The center of the feeding turntable is connected with a rotating shaft, and the rotating shaft is connected with a driving motor. A plurality of feeding grooves penetrating the feeding turntable are evenly arranged in a ring with the rotating shaft as the center on the feeding turntable. A plurality of fixing mechanisms are evenly distributed outside the feeding grooves. The fixing mechanism includes a fixing cylinder. The output end of the fixing cylinder is provided with a fixing clamping plate. An arc-shaped clamping groove is provided on the side of the fixing clamping plate close to the feeding groove. The tapping mechanism includes a support frame. A Y-axis linear motor is installed on the support frame. The mover of the Y-axis linear motor is installed with an X-axis linear motor. The mover of the X-axis linear motor is installed with a tapping motor. The output end of the tapping motor is installed with a tapping tap.

[0006] Preferably, a feeding frame is provided above the working platform. The discharging end of the feeding frame is provided with a feeding table. A feeding hole is opened on the feeding table. A feeding column is arranged in the feeding hole. The feeding column is vertically arranged below the feeding hole. A positioning cylinder is embedded at the bottom of the feeding column. The output end of the positioning cylinder is provided with a positioning block. The size of the positioning block matches the inner hole of the nut to be processed. Installation brackets are arranged on both sides of the feeding column. A plurality of auxiliary cylinders are horizontally installed on the installation brackets. The output end of the auxiliary cylinder is provided with a clamping rod. A clamping groove matching the clamping rod is provided on the feeding column.

[0007] Preferably, a threaded rod is installed at the bottom of the blanking chute. The threaded rod is connected to a rotating motor. An adjusting seat is threadedly installed on the threaded rod. A laser emitter is installed on the adjusting seat. A first laser receiver is provided at the center of the bottom of the positioning block. A second laser receiver is provided at the center of the bottom of the tapping cone.

[0008] Preferably, a discharge chute is formed at the tapping station of the working platform, and a waste box is provided below the discharge chute.

[0009] Preferably, the feeding rack is inclined. A baffle is provided at the discharge end of the feeding rack. The baffle is connected to a feeding cylinder.

[0010] Preferably, the laser emitter is arranged in a transparent protective cover, and the head of the protective cover is a smooth hemispherical shape.

[0011] Preferably, a cleaning station is provided on the working platform. A waste discharge through groove is formed at the cleaning station. A cleaning bracket is provided above the cleaning station. A telescopic cylinder is installed on the cleaning bracket. The output end of the telescopic cylinder is installed with a fixing plate. A blowing pump is fixed on the fixing plate. A cleaning nozzle is provided at the bottom of the fixing plate. The cleaning nozzle is connected to the blowing pump. The cleaning nozzle is rotatably installed on the fixing plate and is driven to rotate by a rotating motor.

[0012] Preferably, a discharge chute is provided on one side of the waste discharge through groove away from the rotating shaft. A blanking cylinder is installed on one side of the fixing mechanism close to the rotating shaft. The output end of the blanking cylinder is installed with a blanking push plate.

[0013] Advantages of the present invention: In the present invention, nuts are fed by a vertical feeding column. The nuts fall onto the feeding turntable under the action of gravity. The positioning block at the bottom of the feeding column is installed into the tapping bottom hole of the nut to position the nut. Then, the nut is clamped by a fixing cylinder to fix the position of the nut, ensuring the accuracy of tapping. First, the adjusting seat is moved to align the laser emitter with the first laser receiver of the positioning block, and the center position of the nut is marked by the laser emitter. When the nut rotates to the tapping station, the second laser receiver of the tapping cone is aligned with the laser emitter by moving the tapping cone, automatically completing the adjustment of the tapping position and ensuring accurate tapping positioning.

[0014] The features and advantages of the present invention will be described in detail through embodiments in conjunction with the drawings.

Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present invention;

[0016] Figure 2 is Figure 1 a partially enlarged schematic view of part A of

[0017] Figure 3It is a schematic diagram of the feeding of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the loading column of the present invention;

[0019] Figure 5 It is a schematic diagram of the structure of the feeding turntable of the present invention;

[0020] Figure 6 It is a schematic diagram of the structure of the feeding rack of the present invention;

[0021] Figure 7 It is a schematic diagram of the cleaning mechanism of the present invention.

[0022] In the figure: 1 - working platform, 2 - feeding turntable, 3 - fixed cylinder, 4 - support frame, 5 - tapping tap, 6 - feeding rack, 7 - positioning block, 8 - cleaning bracket, 10 - positioning station, 11 - discharge groove, 12 - waste discharge through groove, 13 - discharge chute, 14 - blanking cylinder, 15 - blanking push plate, 20 - tapping station, 21 - blanking groove, 22 - threaded rod, 23 - adjustment seat, 24 - laser emitter, 25 - protective cover, 30 - cleaning station, 31 - fixed clamping plate, 41 - tapping motor, 51 - second laser receiver, 61 - loading table, 62 - loading hole, 63 - loading column, 64 - positioning cylinder, 65 - auxiliary cylinder, 66 - clamping rod, 71 - first laser receiver, 81 - telescopic cylinder, 82 - fixed plate, 83 - air blowing pump, 84 - cleaning nozzle.

Detailed implementation manners

[0023] Embodiment 1:

[0024] A nut tapping machine, comprising a working platform 1, on which a positioning station 10 and a tapping station 20 are provided. A tapping mechanism is installed on the working platform 1. The upper surface of the working platform 1 is rotatably installed with a feeding turntable 2. The center of the feeding turntable 2 is connected with a rotating shaft, and the rotating shaft is connected with a driving motor. A plurality of blanking grooves 21 penetrating through the feeding turntable 2 are evenly annularly arranged on the feeding turntable 2 with the rotating shaft as the center. A plurality of fixing mechanisms are evenly distributed outside the blanking grooves 21. The fixing mechanism includes a fixing cylinder 3. The output end of the fixing cylinder 3 is provided with a fixing clamping plate 31. The side of the fixing clamping plate 31 close to the blanking groove 21 is provided with an arc-shaped clamping groove. The tapping mechanism includes a support frame 4. An X-axis linear motor is installed on the support frame 4. The moving part of the X-axis linear motor is installed with a Y-axis linear motor. The moving part of the Y-axis linear motor is installed with a tapping motor 41. The output end of the tapping motor 41 is installed with a tapping tap 5. Above the working platform 1, there is a feeding rack 6. The discharging end of the feeding rack 6 is provided with a loading table 61. A loading hole 62 is opened on the loading table 61. A loading column 63 is arranged in the loading hole 62. The loading column 63 is vertically arranged below the loading hole 62. A positioning cylinder 64 is embedded at the bottom of the loading column 63. The output end of the positioning cylinder 64 is provided with a positioning block 7. The size of the positioning block 7 matches the inner hole of the nut to be processed. Installation brackets 64 are arranged on both sides of the loading column 63. A plurality of auxiliary cylinders 65 are horizontally installed on the installation brackets 64. The output end of the auxiliary cylinder 65 is provided with a clamping rod 66. The loading column 63 is provided with a clamping groove matching the clamping rod 66. The bottom of the positioning block 7 is provided with a conical guiding head.

[0025] Embodiment 2:

[0026] Refer to Figures 1 to 7, a nut tapping machine, comprising a working platform 1, a positioning station 10 and a tapping station 20 are provided on the working platform 1, a tapping mechanism is installed on the working platform 1, a feeding turntable 2 is rotatably installed on the upper surface of the working platform 1, a rotating shaft is connected to the center of the feeding turntable 2, the rotating shaft is connected to a driving motor, a plurality of blanking grooves 21 penetrating through the feeding turntable 2 are evenly annularly arranged on the feeding turntable 2 with the rotating shaft as the center, and a plurality of fixing mechanisms are evenly distributed outside the blanking grooves 21. The fixing mechanism includes a fixing cylinder 3, a fixing clamping plate 31 is provided at the output end of the fixing cylinder 3, and an arc-shaped clamping groove is provided on one side of the fixing clamping plate 31 close to the blanking groove 21. The tapping mechanism includes a support frame 4, a Y-axis linear motor is installed on the support frame 4, an X-axis linear motor is installed on the mover of the Y-axis linear motor, a tapping motor 41 is installed on the mover of the X-axis linear motor, and a tapping tap 5 is installed at the output end of the tapping motor 41. A feeding frame 6 is provided above the working platform 1, a feeding table 61 is provided at the discharging end of the feeding frame 6, a feeding hole 62 is opened on the feeding table 61, a feeding column 63 is provided in the feeding hole 62, the feeding column 63 is vertically arranged below the feeding hole 62, a positioning cylinder 64 is embedded at the bottom of the feeding column 63, a positioning block 7 is provided at the output end of the positioning cylinder 64, and the size of the positioning block 7 matches the inner hole of the nut to be processed. Two installation brackets 64 are provided on both sides of the feeding column 63, three auxiliary cylinders 65 are horizontally installed on the installation brackets 64, a clamping rod 66 is provided at the output end of the auxiliary cylinder 65, and a clamping groove matching the clamping rod 66 is provided on the feeding column 63. A threaded rod 22 is installed at the bottom of the blanking groove 21, the threaded rod 22 is connected to a rotating motor, an adjusting seat 23 is threadedly installed on the threaded rod 22, and a laser emitter 24 is installed on the adjusting seat 23. A first laser receiver 71 is provided at the center of the bottom of the positioning block 7, and a second laser receiver 51 is provided at the center of the bottom of the tapping tap 5. A discharge groove 11 is opened at the tapping station 20 of the working platform 1, and a waste box is provided below the discharge groove 11. The feeding frame 6 is inclined, a baffle is provided at the discharging end of the feeding frame 6, and the baffle is connected to a feeding cylinder. The laser emitter 24 is arranged in a transparent protective cover 25, and the head of the protective cover 25 is a smooth hemispherical shape. A cleaning station 30 is provided on the working platform 1, a waste discharge through groove 12 is opened at the cleaning station 30, a cleaning support frame 8 is provided above the cleaning station 30, a telescopic cylinder 81 is installed on the cleaning support frame 8, a fixing plate 82 is installed at the output end of the telescopic cylinder 81, a blowing pump 83 is fixed on the fixing plate 82, a cleaning nozzle 84 is provided at the bottom of the fixing plate 82, the cleaning nozzle 84 is connected to the blowing pump 83, the cleaning nozzle 84 is rotatably installed on the fixing plate 82, and the cleaning nozzle 84 is driven to rotate by a rotating motor. An outlet groove 13 is provided on one side of the waste discharge through groove 12 away from the rotating shaft, a blanking cylinder 14 is installed on one side of the fixing mechanism close to the rotating shaft, and a blanking push plate 15 is installed at the output end of the blanking cylinder 14.

[0027] The working process of the present invention:

[0028] During the working process of the present invention, the auxiliary cylinder at the bottom first shortens, causing the nut at the bottom to fall from the feeding column 63 onto the positioning block 7. After being positioned by the positioning block, the nut is placed on the top of the feeding turntable 2. Then the auxiliary cylinder at the bottom elongates again, clamping the feeding column. Then the auxiliary cylinder in the middle shortens. After the nut above falls to the next position, it returns to its original position to feed the nuts one by one. After the nut falls to the positioning station 10, the positioning block is still located in the bottom thread hole. The adjusting seat adjusts the position of the laser emitter to ensure that the signal emitted by the laser emitter is received by the first laser receiver. After the alignment of the two is completed, the feeding turntable rotates the nut to the tapping station. The X-axis linear motor adjusts the position of the tapping tap to ensure that the signal emitted by the laser emitter is received by the second laser receiver. After the alignment is completed, the tapping work is carried out. After the tapping is completed, the feeding turntable rotates the nut to the cleaning station, and the cleaning nozzle extends into the thread hole to blow air into the thread hole for cleaning to ensure the cleanliness of the thread hole and the protective cover.

[0029] The above embodiments are illustrative of the present invention, not restrictive thereof. Any solution obtained by simply transforming the present invention belongs to the protection scope of the present invention.

Claims

1. A nut tapping machine, characterized in that: It includes a working platform (1), on which a positioning station (10) and a tapping station (20) are provided. A tapping mechanism is installed on the working platform (1). The upper surface of the working platform (1) is rotatably installed with a feeding turntable (2). The center of the feeding turntable (2) is connected with a rotating shaft, and the rotating shaft is connected with a driving motor. A plurality of blanking grooves (21) penetrating through the feeding turntable (2) are evenly annularly arranged on the feeding turntable (2) with the rotating shaft as the center. A plurality of fixing mechanisms are evenly distributed outside the blanking grooves (21). The fixing mechanism includes a fixing cylinder (3), and the output end of the fixing cylinder (3) is provided with a fixing clamping plate (31). An arc-shaped clamping groove is provided on the side of the fixing clamping plate (31) close to the blanking groove (21). The tapping mechanism includes a support frame (4), on which a Y-axis linear motor is installed. The mover of the Y-axis linear motor is installed with an X-axis linear motor, and the mover of the X-axis linear motor is installed with a tapping motor (41). The output end of the tapping motor (41) is installed with a tapping tap (5); above the working platform (1), there is a feeding rack (6). The discharging end of the feeding rack (6) is provided with a feeding table (61). A feeding hole (62) is opened on the feeding table (61). A feeding column (63) is arranged in the feeding hole (62). The feeding column (63) is vertically arranged below the feeding hole (62). A positioning cylinder (64) is embedded at the bottom of the feeding column (63). The output end of the positioning cylinder (64) is provided with a positioning block (7). The size of the positioning block (7) matches the inner hole of the nut to be processed. Installation brackets (64) are arranged on both sides of the feeding column (63). A plurality of auxiliary cylinders (65) are horizontally installed on the installation brackets (64). The output end of the auxiliary cylinder (65) is provided with a clamping rod (66). A clamping groove matching the clamping rod (66) is provided on the feeding column (63); the bottom of the blanking groove (21) is installed with a threaded rod (22). The threaded rod (22) is connected with a rotating motor. An adjusting seat (23) is threadedly installed on the threaded rod (22). A laser emitter (24) is installed on the adjusting seat (23). A first laser receiver (71) is provided at the center of the bottom of the positioning block (7), and a second laser receiver (51) is provided at the center of the bottom of the tapping tap (5).

2. The nut tapping machine according to claim 1, characterized in that: A discharge groove (11) is opened at the tapping station (20) of the working platform (1), and a waste box is arranged below the discharge groove (11).

3. The nut tapping machine according to claim 1, characterized in that: The feeding rack (6) is inclined, and a baffle is provided at the discharging end of the feeding rack (6). The baffle is connected with a feeding cylinder.

4. The nut tapping machine according to claim 1, characterized in that: The laser emitter (24) is arranged in a transparent protective cover (25), and the head of the protective cover (25) is a smooth hemispherical shape.

5. The nut tapping machine according to claim 1, characterized in that: The working platform (1) is provided with a cleaning station (30). A waste discharge through groove (12) is formed in the cleaning station (30). Above the cleaning station, there is a cleaning bracket (8). A telescopic air cylinder (81) is installed on the cleaning bracket (8). The output end of the telescopic air cylinder (81) is installed with a fixing plate (82). A blowing pump (83) is fixed on the fixing plate (82). At the bottom of the fixing plate (82), there is a cleaning spray head (84). The cleaning spray head (84) is connected to the blowing pump (83). The cleaning spray head (84) is rotatably installed on the fixing plate (82) and is driven to rotate by a rotating motor.

6. The nut tapping machine according to claim 5, characterized in that: On one side of the waste discharge through groove (12) away from the rotating shaft, there is a discharge chute (13). On one side of the fixing mechanism close to the rotating shaft, a blanking air cylinder (14) is installed. The output end of the blanking air cylinder (14) is installed with a blanking push plate (15).

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