Automatic screwdriver head replacing mechanism of screw gun

Abstract

The utility model discloses an automatic screwdriver head changing mechanism of a screw gun, which comprises an electromagnetic coil, a spring, a first screwdriver head, a permanent magnet, the screw gun, a mechanical arm and a steel ball, the mechanical arm is arranged on the screw gun, the permanent magnet is arranged inside the front end of the screw gun, the electromagnetic coil and the spring are arranged at the front end of the screw gun, and the first screwdriver head is arranged on the electromagnetic coil. The first screwdriver head is fixedly arranged in the front end of the screw gun in a clamped mode. According to the utility model, the design of the bit library is adopted, a plurality of types of bits can be stored in one library, when a certain specification of bit is needed, a screw gun can automatically pick up the specification, the screw gun is provided with an automatic bit releasing and locking mechanism, the bit library is also provided with a mechanism for fixing and detecting the bits, and the multi-model integrated design almost can meet the requirements of all specifications of screws on a product; screws of different specifications can be assembled on the same screw gun without manual intervention, so that the error probability is greatly reduced, the efficiency is improved compared with that of manual work, and meanwhile, the use area of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bit replacement of a screw gun, in particular to an automatic bit changing mechanism for a screw gun. Background Technique

[0002] When the existing screw gun is in use, it can only screw single - model and single - specification screws. If there are screws of different specifications, only multiple screw guns with different - specification bits need to be used for adaptation. Therefore, in the actual use process, it will cause high equipment costs, large floor space when multiple types of equipment are used together, and when the bit needs to be replaced, only manual replacement can be carried out, which is time - consuming and prone to errors. Therefore, a device is needed to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to provide an automatic bit changing mechanism for a screw gun to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an automatic bit changing mechanism for a screw gun, including an electromagnetic coil, a spring, a first bit, a permanent magnet, a screw gun, a robotic arm and a steel ball. The robotic arm is arranged on the screw gun, the permanent magnet is arranged inside the front end of the screw gun, the electromagnetic coil and the spring are arranged at the front end of the screw gun, the first bit is fixedly arranged inside the front end of the screw gun, a bit magazine is arranged outside the screw gun, the steel ball is arranged inside the front end of the screw gun, and the steel ball is located at the end of the spring.

[0005] Preferably, detection sensors and electromagnets are evenly distributed at the inner bottom end of the bit magazine, and the electromagnets are distributed on both sides of the detection sensors.

[0006] Preferably, second bits, third bits and fourth bits are evenly arranged inside the bit magazine.

[0007] Preferably, the specifications of the first bit, the second bit, the third bit and the fourth bit are all different.

[0008] Preferably, a clamping connection groove is opened at the upper side end of the first bit, the second bit, the third bit and the fourth bit.

[0009] Preferably, the clamping connection groove is adapted to the steel ball.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0011] The utility model adopts a bit library design. A library can store several types of bits. When a bit of a certain specification is needed, the screwdriver gun will automatically pick up the bit of this specification. The screwdriver gun has an automatic bit release and locking mechanism, and the bit library also has a mechanism for fixing and detecting bits. The integrated design of multiple models can almost meet all the screw specifications on the product. Different specifications of screws can be assembled on the same screwdriver gun without human intervention, greatly reducing the error probability, improving the efficiency compared with manual operation, and at the same time reducing the equipment usage area. Brief Description of the Drawings

[0012] Figure 1 is a schematic diagram of the main structure of the utility model;

[0013] Figure 2 is a schematic diagram of the bit library structure in the utility model.

[0014] In the figure: 1 - electromagnetic coil, 2 - spring, 3 - first bit, 4 - clamping connection groove, 5 - permanent magnet, 6 - screwdriver gun, 7 - robotic arm, 8 - bit library, 9 - detection sensor, 10 - electromagnet, 11 - steel ball, 12 - second bit, 13 - third bit, 14 - fourth bit. Specific Embodiments

[0015] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0016] Please refer to Figure 1-2 , an embodiment provided by the present utility model: an automatic bit changing mechanism for a screwdriver gun, including an electromagnetic coil 1, a spring 2, a first bit 3, a permanent magnet 5, a screwdriver gun 6, a robotic arm 7 and a steel ball 11. The robotic arm 7 is arranged on the screwdriver gun 6. The permanent magnet 5 is arranged inside the front end of the screwdriver gun 6. The electromagnetic coil 1 and the spring 2 are arranged at the front end of the screwdriver gun 6. The first bit 3 is clamped and arranged inside the front end of the screwdriver gun 6. A bit library 8 is arranged outside the screwdriver gun 6. The steel ball 11 is arranged inside the front end of the screwdriver gun 6, and the steel ball 11 is located at the end of the spring 2.

[0017] Detection sensors 9 and electromagnets 10 are evenly distributed at the bottom end inside the bit library 8, and the electromagnets 10 are distributed on both sides of the detection sensors 9.

[0018] The second bit 12, the third bit 13 and the fourth bit 14 are evenly arranged inside the bit library 8.

[0019] The specifications of the first batch of heads 3, the second batch of heads 12, the third batch of heads 13, and the fourth batch of heads 14 are all different, and they can be selected and used according to actual usage requirements.

[0020] The clamping connection groove 4 is opened at the upper side ends of the first batch of heads 3, the second batch of heads 12, the third batch of heads 13, and the fourth batch of heads 14. The clamping connection groove 4 is adapted to the steel balls 11, and can achieve clamping and locking, which is convenient for replacement.

[0021] Working principle: When the first batch of heads 3 is working, the permanent magnet 5 attracts the first batch of heads 3, and the steel balls 11 are stuck in the clamping connection groove 4 provided on the first batch of heads 3. When the device needs to replace the heads, the robotic arm 7 automatically moves the screw gun 6 to above the bit magazine 8 provided on one side of the screw gun 6, and puts the first batch of heads 3 into the empty magazine provided on the bit magazine 8. At this time, the electromagnetic coil 1 is energized, attracting the steel balls 11 to compress the spring 2 and retract, and the electromagnet 10 works and is energized to attract the first batch of heads 3. The screw gun 6 is lifted upward to disengage from the first batch of heads 3. The detection sensor 9 detects that the first batch of heads 3 is put into the magazine. The screw gun 6 moves to the fourth batch of heads 14, and the permanent magnet 5 attracts the fourth batch of heads 14. At the same time, the electromagnetic coil 1 is de-energized, so that the steel balls 11 are stuck inside the clamping connection groove 4 opened on the fourth batch of heads 14. The electromagnet 10 is de-energized and the screw gun 6 is lifted, and the detection sensor 9 feeds back that the tool change is completed.

[0022] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic bit-changing mechanism for a screw gun, comprising an electromagnetic coil (1), a spring (2), a first bit (3), a clamping connection groove (4), a permanent magnet (5), a screw gun (6), a robotic arm (7) and a steel ball (11), characterized in that: The robotic arm (7) is arranged on the screw gun (6), the permanent magnet (5) is arranged inside the front end of the screw gun (6), the electromagnetic coil (1) and the spring (2) are arranged at the front end of the screw gun (6), the first bit (3) is fixedly arranged inside the front end of the screw gun (6), a bit magazine (8) is arranged on the outer side of the screw gun (6), the steel ball (11) is arranged inside the front end of the screw gun (6), and the steel ball (11) is located at the end of the spring (2).

2. The automatic bit-changing mechanism of a screw gun according to claim 1, characterized in that: Detection sensors (9) and electromagnets (10) are evenly distributed at the inner bottom end of the bit magazine (8), and the electromagnets (10) are distributed on both sides of the detection sensors (9).

3. The automatic bit-changing mechanism of a screw gun according to claim 2, characterized in that: Second bits (12), third bits (13) and fourth bits (14) are evenly arranged inside the bit magazine (8).

4. The automatic bit-changing mechanism of a screw gun according to claim 3, wherein: The specifications of the first bit (3), the second bit (12), the third bit (13) and the fourth bit (14) are all different.

5. The automatic bit-changing mechanism of a screw gun according to claim 4, characterized in that: The clamping connection groove (4) is opened at the upper side ends of the first bit (3), the second bit (12), the third bit (13) and the fourth bit (14).

6. The automatic bit-changing mechanism of a screw gun according to claim 5, wherein: The clamping connection groove (4) is adapted to the steel ball (11).

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