Automatic tapping machine for chassis

Abstract

The utility model relates to a chassis automatic tapping machine which comprises a working table, a tapping frame and a first driving motor driving the tapping frame to ascend and descend are arranged on the working table, and a tapping drill bit and a tapping motor driving the tapping drill bit to rotate are arranged on the tapping frame. A rotating disc, a first driving part for driving the rotating disc to rotate, a feeding station, a machining station and a discharging station are arranged on the workbench, the feeding station, the machining station and the discharging station are sequentially arranged on the periphery of the rotating disc, a plurality of notches for containing the chassis are formed in the rotating disc in the circumferential direction of the rotating disc, the tapping frame is arranged on the machining station, and a tapping drill bit is located above the rotating disc; the feeding station is provided with a feeding rail and a vibration disc, the notch corresponds to a discharging port of the feeding rail, and the feeding rail is provided with a first sensor. By the adoption of the technical scheme, according to the automatic tapping machine for the base plates, the base plates are fed one by one through the vibration disc and the feeding track, and feeding is stopped when the number of the base plates in the feeding track is too large.

Description

Technical Field

[0001] This utility model relates to automotive parts processing equipment, and in particular to an automatic chassis tapping machine. Background Technology

[0002] A tapping machine is a machining device that processes internal threads, screws, or threads on the inner surface of holes in various parts such as machine housings, equipment end faces, nuts, and flanges, using through holes or blind holes of different specifications. It rotates and drives the tapping tool, causing it to enter the workpiece material and cut precise internal threads according to a preset pitch and depth. Tapping machines can be divided into manual and automatic (including semi-automatic and fully automatic) types, and are widely used in machining, automobile manufacturing, engineering construction, and other fields.

[0003] Existing tapping machines include a machining table, a tapping drill bit, and a motor that drives the tapping drill bit to rotate. The machining table has a slot to accommodate a chassis, and the tapping drill bit is located above the slot. The chassis is placed inside the slot, and the tapping drill bit performs internal thread machining. Figure 7 As shown, the chassis includes an integrally formed first disc portion and a second disc portion. The second disc portion is located above the first disc portion, and its diameter is smaller than that of the first disc portion. Internal threads are formed on the second disc portion of the chassis, and the first disc portion has several through holes along its circumference. However, the existing chassis is loaded manually, which is not only inefficient but also unsafe. In addition, when the existing tapping machine is working, the high-speed rotation of the tapping drill bit can easily cause the chassis to rotate along with it, affecting the processing effect of the chassis. Utility Model Content

[0004] The purpose of this utility model is to overcome the defects of the prior art. This utility model provides an automatic tapping machine for chassis, which feeds chassis one by one through a vibrating plate and a feeding track. When there are too many chassis in the feeding track, feeding stops. At the same time, the chassis is positioned by a sawtooth structure to keep it stable when the tapping drill bit is working.

[0005] The technical solution of this utility model: An automatic tapping machine for chassis includes a worktable, on which a tapping frame and a first drive motor for driving the tapping frame to rise and fall are provided. The tapping frame is equipped with a tapping drill bit and a tapping motor for driving the tapping drill bit to rotate. The worktable is equipped with a turntable, a first drive component for driving the turntable to rotate, and loading, processing, and unloading stations sequentially arranged around the outer periphery of the turntable. The turntable has several slots along its circumference to accommodate chassis. Under the action of the drive motor, the machine sequentially passes through the loading, processing, and unloading stations. The tapping frame is located at the processing station, and the tapping drill bit is positioned above the turntable, corresponding to... At the slot position, the feeding station is equipped with a feeding track and a vibrating plate. The vibrating plate corresponds to the inlet of the feeding track, and the slot corresponds to the outlet of the feeding track. The feeding track is equipped with a first sensor to detect whether there is material in the feeding track. Limiting plates extending towards the center are respectively provided on both sides of the feeding track. A first material passage is formed between the two limiting plates and the bottom wall of the feeding track to accommodate the first disc part. A second material passage is formed between the two limiting plates to accommodate the second disc part. A notch is opened on one of the limiting plates, and the end of the first sensor is located in the notch. A pressure plate is provided on the other limiting plate, and the pressure plate extends into the second material passage.

[0006] Using the above technical solution, a vibratory feeder feeds the chassis one by one into the feeding track. The chassis are arranged sequentially within the track, and a front-end pusher pushes each chassis into a slot. Once inside the slot, a drive motor rotates a turntable, transporting the chassis to the machining station. Internal threads are machined using a tapping drill. After machining, the turntable rotates to the unloading station for chassis unloading. During the turntable's rotation, the next chassis is delivered to the machining station. A first sensor is installed on the feeding track to detect the presence of a chassis within it. The first circular portion of each chassis has a through hole. Therefore, a notch is set on the side of the feeding track, and the sensor is located at the notch position. This avoids errors when the first sensor is opposite to the through hole, which would cause the feeding track to continuously feed and accumulate material. When the first sensor detects a chassis at the notch position, feeding is paused. Feeding continues after the notch position is detected to be free of chassis, thus preventing material accumulation. The feeding track is tilted so that the chassis inside the feeding track can automatically slide towards the discharge port under the influence of gravity. A pressure plate is set to press down on the pressure plate to prevent it from being pushed by other chassis and stacking with the chassis at the rear, which would affect feeding.

[0007] A further feature of this invention is that a bracket is provided on the feeding track, and the first sensor is mounted on the bracket via a connecting plate. The connecting plate is slidably mounted on the bracket to adjust the position of the first sensor on the feeding track.

[0008] With the above-mentioned further configuration, the connecting plate is installed on the bracket by bolts. The position of the first sensor is adjusted to prevent the through hole from being opposite the first sensor when the first disc passes by. The first sensor is adjusted so that it can detect the chassis without being opposite the through hole. The position of the first sensor can also be adjusted according to the specifications of the chassis to ensure that it can accurately sense the chassis and avoid omissions.

[0009] A further feature of this invention is that the feeding track is also provided with two guide rods, which are located at the front end of the limiting plate. The two guide rods are integrally welded to the feeding track through a connecting piece, and a guide channel for accommodating the second disc is formed between the two guide rods. The guide channel is connected to the second material passage channel.

[0010] By adopting the above-mentioned further settings, compared with the setting of the rear limit plate of the feeding track, the setting of the front guide rod can realize the rapid feeding of the chassis. Furthermore, the guide rod is welded to the feeding track through connecting pieces, making the guide rod structure firm and avoiding deformation caused by chassis sliding, which would affect the guidance.

[0011] A further feature of this invention is that the processing station is also provided with a positioning component and a second driving component that drives the positioning component to slide. The end face of the positioning component facing the turntable is provided with a number of first saw teeth, and the inner sidewall of each slot is provided with a number of second saw teeth. After the positioning component slides towards the turntable under the action of the second driving component, the first saw teeth and the second saw teeth press against the outer sidewall of the chassis.

[0012] With the above-mentioned further configuration, the chassis located at the discharge port in the feeding track is pushed down by the chassis on the front side into the slot of the turntable. The turntable rotates and transports the chassis to the processing station. The first drive motor drives the tapping machine to move down, and the second drive component drives the positioning component to move towards the turntable. The positioning component presses against the outer circumferential surface of the second disc of the chassis. The tapping motor drives the tapping drill bit to rotate and process the chassis. Because the positioning component and the surface of the slot that contacts the second disc are provided with serrations, the chassis, the slot, and the positioning component are tightly combined, generating resistance and preventing the chassis from rotating when the tapping drill bit rotates, thus affecting the processing effect.

[0013] A further feature of this invention is as follows: a fixed plate and an arc-shaped baffle are installed on the workbench; the turntable is rotatably mounted on the fixed plate; the drive motor is located on the lower end face of the fixed plate; the output shaft of the drive motor passes through the fixed plate and is connected to the turntable; the arc-shaped baffle is located on the outer side of the turntable and is situated between the loading station and the processing station.

[0014] With the above-mentioned further configuration, when the turntable rotates, the chassis located in the slot will be thrown out due to centrifugal force, thus realizing the unloading. In order not to affect the chassis from the loading station to the processing station, an arc-shaped baffle is set to prevent the chassis from being thrown out.

[0015] A further improvement of this invention is that the slot is arc-shaped, and the end of the positioning member is also arc-shaped, with the end face of the positioning member cooperating with the slot to form a positioning chamber.

[0016] The above-mentioned further settings are adapted to the chassis for better chassis positioning.

[0017] A further improvement of this invention is that the workbench is also equipped with a lighting lamp.

[0018] The above-mentioned further settings make it easier to observe whether there are any chips stuck to the head of the tapping drill bit. The stuck chips can be removed in time to avoid them being carried to the next chassis and affecting the drilling of the next chassis.

[0019] A further feature of this invention is that a second sensor is provided on the workbench corresponding to the loading station, for sensing whether there is a chassis inside the slot.

[0020] With the above-mentioned further configuration, after the chassis is detected, the drive unit starts working, drives the turntable to rotate, and sends the chassis to the processing station, thus avoiding wasted work.

[0021] A further feature of this invention is that the workbench is also provided with a partition, which is located between the fixed plate and the turntable. The turntable and the fixed plate form a positioning area for the positioning chassis, and the first disc is located within the positioning area.

[0022] With the above-mentioned further configuration, it is necessary to process the second disc. After the material is loaded, the first disc of the chassis is located in the positioning area, and the second disc is positioned by the saw teeth. The partition can separate the fixed plate and the turntable, and can also support the turntable.

[0023] A further improvement of this utility model is that a receiving tray is provided on the unloading station.

[0024] With the above-mentioned further configuration, the processed chassis is rotated by the turntable, and due to centrifugal force, it is automatically thrown out and falls into the receiving tray, which facilitates subsequent handling. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the turntable and drive motor in a specific embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the turntable according to a specific embodiment of the present utility model;

[0028] Figure 4 This is a schematic diagram of the positioning component according to a specific embodiment of the present utility model;

[0029] Figure 5 This is a schematic diagram of the feeding track and vibratory feeder in a specific embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of a tapping drill bit according to a specific embodiment of the present utility model;

[0031] Figure 7 This is a schematic diagram of the chassis of a specific embodiment of the present utility model.

[0032] In the diagram, 1. Workbench; 11. Turntable; 111. Groove; 112. Second sawtooth; 12. First drive component; 13. Fixing plate; 14. Arc-shaped baffle; 15. Partition; 16. Lighting lamp; 17. Second sensor; 2. Loading station; 21. Loading track; 211. First sensor; 212. Limiting plate; 213. Notch; 214. Pressure plate; 215. Bracket; 216. Connecting plate; 217. Guide rod; 22. Vibratory feeder; 3. Machining station; 31. Tapping frame; 33. Tapping drill bit; 35. Positioning component; 351. First sawtooth; 36. Second drive component; 4. Unloading station; 41. Receiving tray; 20. Chassis; 201. First disc part; 202. Second disc part; 203. Through hole. Detailed Implementation

[0033] The technical solutions in this embodiment 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.

[0034] It should be noted that all directional indicators (such as up, down, forward, backward, etc.) in the description of this utility model are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] like Figure 1-7As shown, an automatic tapping machine for chassis includes a worktable 1. The worktable 1 is equipped with a tapping frame 31 and a first drive motor for raising and lowering the tapping frame 31. The tapping frame 31 is equipped with a tapping drill bit 33 and a tapping motor for rotating the tapping drill bit 33. The worktable 1 is rotatably equipped with a turntable 11, a first drive component 12 for rotating the turntable 11, and a loading station 2, a processing station 3, and a unloading station 4 sequentially arranged around the turntable 11. The turntable 11 has several slots 111 along its circumference to accommodate chassis. The tapping frame 31 is located on the processing station 3, and the tapping drill bit 33 is located above the turntable 11 and corresponds to the slots 111. The loading station 2 is equipped with a loading rail. The feeding track 21 and the vibratory feeder 22 are provided. The vibratory feeder 22 corresponds to the inlet of the feeding track 21, and the slot 111 corresponds to the outlet of the feeding track 21. The feeding track is inclined. A first sensor 211 is provided on the feeding track 21 to detect whether there is material in the feeding track 21. Limiting plates 212 extending towards the center are provided on both sides of the feeding track 21. A first material passage for accommodating the first disc part 201 is formed between the two limiting plates 212 and the bottom wall of the feeding track 21. A second material passage for accommodating the second disc part 202 is formed between the two limiting plates 212. A notch 213 is opened on one of the limiting plates 212, and the end of the first sensor 211 is located in the notch 213. Another limiting plate 212 is equipped with a pressure plate 214, which extends into the second material passage. The vibrating plate 22 feeds the chassis one by one into the loading track 21. The chassis are arranged sequentially within the loading track 21, and pushed one by one into the slot 111 by the front-end chassis pusher. After the chassis enters the slot 111, the drive component 12 drives the turntable 11 to rotate, sending the chassis to the processing station. Internal threads are machined using a tapping drill bit. After machining, the turntable rotates to the unloading station for chassis unloading. During the turntable's rotation, the next chassis is sent to the processing station. A first sensor is installed on the loading track to detect whether there is a chassis in the loading track. Because the first disc portion of the chassis has a through hole, the upper... A notch is provided on the side of the material track, and the sensor is located at the notch position to avoid errors when the first sensor is opposite to the through hole, which would cause continuous feeding of material and material accumulation. When the first sensor detects a chassis at the notch position, feeding is paused. Feeding continues after the notch position is detected to be free of chassis to avoid material accumulation. A pressure plate is provided to press down on the pressure plate to prevent it from being pushed by other chassis and stacking with the chassis at the rear end, which would affect feeding. A sensor 17 is provided on the workbench 1 corresponding to the feeding station 2 to sense whether there is a chassis in the slot 111. After sensing the presence of a chassis, the first drive component 12 starts to work, driving the turntable 11 to rotate and send the chassis to the processing station 3 to avoid wasting work.

[0038] The feeding track 21 is provided with a bracket 215. The first sensor 211 is mounted on the bracket 215 through a connecting plate 216. The connecting plate 216 is slidably mounted on the bracket 215 to adjust the position of the first sensor 211 on the feeding track 21. The connecting plate 216 is mounted on the bracket 215 with bolts. Adjusting the position of the first sensor prevents the through hole from being opposite to the first sensor when the first disc passes by. The first sensor can be adjusted to detect the chassis without being opposite to the through hole. The position of the first sensor can also be adjusted according to the specifications of the chassis to ensure accurate sensing of the chassis and avoid omissions.

[0039] The feeding track 21 is also provided with two guide rods 217, which are located at the front end of the limiting plate 212. In this utility model, the front end refers to the feeding port direction of the feeding track, and the rear end refers to the feeding port direction of the feeding track. The two guide rods 217 are integrally welded to the feeding track 21 through connecting pieces. A guide channel for accommodating the second disc is formed between the two guide rods. The guide channel is connected to the second material passage channel. Compared with the setting of the limiting plate at the rear end of the feeding track, the setting of guide rods at the front end can realize the rapid feeding of the chassis. Furthermore, the connection between the guide rods and the feeding track through connecting pieces makes the structure of the guide rods firm and avoids deformation caused by chassis sliding, which would affect the guidance.

[0040] The processing station 3 is also equipped with a positioning component 35 and a second driving component 36 for sliding the positioning component 35. The two driving components can be set by a cylinder, or an electric cylinder, motor, etc. The end face of the positioning component 35 facing the turntable 11 is provided with a plurality of first serrations 351, and the inner sidewall of each slot 111 is provided with a plurality of second serrations 112. After the positioning component 35 slides towards the turntable 11 under the action of the second driving component 36, the first serrations 351 and the second serrations 112 press against the outer sidewall of the chassis 20. The chassis is placed in the slot 111 at the loading station 2, and the chassis is conveyed to the processing station 3 by rotating the turntable 11. The first driving motor 32 drives the tapping machine to fall, and the second driving component 36 drives the positioning component 35 to move towards the turntable 11. The positioning component 35 presses against the turntable 11. Pressed against the outer circumference of the chassis 20, the tapping motor drives the tapping drill bit 33 to rotate, machining the chassis 20. Because the positioning part 35 and the groove 111 have serrations on their contact surfaces with the chassis, the chassis, groove 111, and positioning part 35 are tightly engaged, generating resistance and preventing the tapping drill bit 33 from rotating and causing the chassis to rotate, thus affecting the machining effect. The groove 111 is arc-shaped, and the end of the positioning part 35 is also arc-shaped. The end face of the positioning part 35 and the groove 111 cooperate to form a positioning chamber, which is adapted to the chassis and better positions the chassis. The worktable is also equipped with a lighting lamp 16 to facilitate observation of whether there are any chips adhering to the head of the tapping drill bit. Adhering chips can be removed in time to prevent them from being carried to the next chassis and affecting the drilling of the next chassis.

[0041] A fixed plate 13 and an arc-shaped baffle 14 are installed on the workbench 1. The turntable 11 is rotatably mounted on the fixed plate 13. The first driving member 12 is located on the lower end face of the fixed plate 13. The output shaft of the first driving member 12 passes through the fixed plate 13 and is connected to the turntable 11. The arc-shaped baffle 14 is located on the outer side of the turntable 11 and is located between the loading station 2 and the processing station 3. When the turntable 11 rotates, the chassis located in the slot 111 will be thrown out due to centrifugal force, realizing unloading. In order not to affect the chassis from the loading station 2 to the processing station 3, the baffle 14 is installed on the workbench 11. Processing station 3 is equipped with an arc-shaped baffle 14 to prevent the chassis from being thrown out; the workbench 1 is also equipped with a partition 15, which is located between the fixed plate 13 and the turntable 11. The turntable 11 and the fixed plate 13 form a positioning area for the positioning chassis. The chassis includes a first disc part and a second disc part. Processing is required on the second disc part. After loading, the first disc part is located in the positioning area, and the second disc part is positioned by the saw teeth. The partition 15 can separate the fixed plate 13 and the turntable 11, and can also support the turntable 11.

[0042] The unloading station 4 is equipped with a receiving tray 41. After processing, the chassis is rotated by the turntable 11 and automatically thrown out into the receiving tray 41 due to centrifugal force, which facilitates subsequent handling.

Claims

1. An automatic tapping machine for chassis, comprising a worktable (1), wherein a tapping frame (31) and a first drive motor for driving the tapping frame (31) to rise and fall are provided on the worktable (1), and a tapping drill bit (33) and a tapping motor for driving the tapping drill bit (33) to rotate are provided on the tapping frame (31), characterized in that, The workbench (1) is provided with a turntable (11) and a first driving component (12) for driving the turntable (11) to rotate, as well as a loading station (2), a processing station (3), and a unloading station (4) arranged sequentially on the outer periphery of the turntable (11). The turntable (11) is provided with a number of slots (111) for accommodating the chassis along its circumference. Under the action of the first driving component (12), the turntable passes through the loading station (2), the processing station (3), and the unloading station (4) in sequence. The tapping frame (31) is located on the processing station (3), and the tapping drill bit (33) is located above the turntable (11) and corresponds to the position of the slot (111). The loading station (2) is provided with a loading track (21) and a vibrating plate (22). The vibrating plate (22) corresponds to the feed inlet of the loading track (21). The slot (111) corresponds to the outlet of the feeding track (21). The feeding track (21) is equipped with a first sensor (211) for detecting whether there is material in the feeding track (21). Limiting plates (212) extending towards the center are respectively provided on both sides of the feeding track (21). A first material passage is formed between the two limiting plates (212) and the bottom wall of the feeding track (21) to accommodate the first disc part (201). A second material passage is formed between the two limiting plates (212) to accommodate the second disc part (202). A notch (213) is opened on one of the limiting plates (212). The end of the first sensor (211) corresponds to the position of the notch (213). A pressure plate (214) is provided on the other limiting plate (212). The pressure plate (214) extends into the second material passage.

2. The automatic tapping machine for chassis according to claim 1, characterized in that, The feeding track (21) is provided with a bracket (215). The first sensor (211) is installed on the bracket (215) through a connecting plate (216). The connecting plate (216) is slidably disposed on the bracket (215) to adjust the position of the first sensor (211) on the feeding track (21).

3. The automatic tapping machine for chassis according to claim 1 or 2, characterized in that, The feeding track (21) is also provided with two guide rods (217). The two guide rods (217) are located at the front end of the limiting plate (212). The two guide rods (217) are integrally welded to the feeding track (21) through connecting pieces. A guide channel for accommodating the second disc part (202) is formed between the two guide rods (217). The guide channel is connected to the second material passage channel.

4. The automatic tapping machine for chassis according to claim 1 or 2, characterized in that, The processing station (3) is also provided with a positioning component (35) and a second driving component (36) for the positioning component (35) to slide. The end face of the positioning component (35) facing the turntable (11) is provided with a number of first serrations (351), and the inner sidewall of each slot (111) is provided with a number of second serrations (112). After the positioning component (35) slides towards the turntable (11) under the action of the second driving component (36), the first serrations (351) and the second serrations (112) press against the outer sidewall of the chassis.

5. The automatic tapping machine for chassis according to claim 1 or 2, characterized in that, The workbench (1) is equipped with a fixed plate (13) and an arc-shaped baffle (14). The turntable (11) is rotatably mounted on the fixed plate (13). The first driving member (12) is located on the lower end face of the fixed plate (13). The output shaft of the first driving member (12) passes through the fixed plate (13) and is connected to the turntable (11). The arc-shaped baffle (14) is located on the outer side of the turntable (11) and is located between the loading station (2) and the processing station (3).

6. The automatic tapping machine for chassis according to claim 4, characterized in that, The slot (111) is arc-shaped, and the end of the positioning member (35) is also arc-shaped. The end face of the positioning member (35) and the slot (111) cooperate to form a positioning chamber.

7. The automatic tapping machine for chassis according to claim 1 or 2, characterized in that, The workbench (1) is also equipped with a lighting lamp (16).

8. The automatic tapping machine for chassis according to claim 1 or 2, characterized in that, The workbench (1) is equipped with a second sensor (17) corresponding to the loading station (2) for sensing whether there is a chassis inside the slot (111).

9. The automatic tapping machine for chassis according to claim 5, characterized in that, The workbench (1) is also provided with a partition (15), which is located between the fixed plate (13) and the turntable (11). The turntable (11) and the fixed plate (13) form a positioning area of ​​the positioning chassis, and the first disc is located in the positioning area.

10. The automatic tapping machine for chassis according to claim 1 or 2, characterized in that, The unloading station (4) is equipped with a receiving tray (41).

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