Automatic screwdriver bit

Abstract

The utility model relates to an automatic bit which comprises a support, a base, a gland, a bit seat, a ball sleeve, a bit and a driving structure, the gland is installed on the base through a screw, the support is installed on the base through a screw, the two ends of the ball sleeve are fixedly arranged on the support and the base respectively, and a ball hole and a suction nozzle are arranged on the bit seat. The ball sleeve is arranged in the ball hole in a penetrating mode, the bit is installed in the suction nozzle, and the driving structure is installed on the base and the gland and drives the bit to rotate. According to the automatic screwdriver bit, the driving structure drives the screwdriver bit to rotate, so that automatic locking or dismounting of a screw is achieved, manual operation is not needed, the production efficiency is improved, the ball sleeve and the screw are arranged, the screwdriver bit can make flexible contact with the screw, and the screwdriver bit or the screw is prevented from being damaged. And the screwdriver head can be driven by the spring to gradually descend along the ball sleeve along with locking of the screw, a descending mechanism does not need to be additionally arranged, and the equipment cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a bit device technical field especially a kind of automatic bit. BACKGROUND

[0002] In manufacturing industry, electronic product, toy, automobile parts and computer, mobile phone and other communication industry have become important component, and screw tightening or loosening is always an important process in the product assembly of these industries.In large-scale production line, due to traditional process and production cost and other reasons, manual screw locking and dismounting is often used.

[0003] This operation mode is more dependent on manpower, and the trained worker holds electric bit or air bit with one hand, and fixes screw with the other hand to operate, and the action is relatively single and mechanical, and there are the disadvantages of large labor intensity of worker, slow speed, low production efficiency and unable to guarantee screw locking precision or dismounting precision. UTILITY MODEL CONTENTS

[0004] The utility model mainly aims at providing a kind of automatic bit to solve the above technical problems, and automatically locks screw.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of automatic bit, including support, base, gland, bit holder, ball sleeve, bit and drive structure, the gland is installed on the base by screw, the support is installed on the base by screw, the both ends of the ball sleeve are respectively fixed on the support and the base, the ball sleeve is arranged in the ball hole in the bit holder, the bit is installed in the suction nozzle, the drive structure is installed on the base and the gland, and the drive structure drives the bit to rotate.

[0007] As a preferred technical scheme, it further includes a limiting frame, the limiting frame is fixed on the support, the upper end of the limiting frame is provided with a supporting groove, and the bit passes through the supporting groove into the base.

[0008] As a preferred technical scheme, the shape of the limiting frame is cross-shaped.

[0009] As a preferred technical scheme, it further includes a spring, the bit holder is provided with a spring hole, the spring is arranged in the spring hole, one end of the spring abuts against the bottom of the spring hole, and the other end abuts against the limiting frame.

[0010] As a preferred technical scheme, the support is provided with a clearance groove for the bit to pass through.

[0011] As a preferred technical solution, the base is provided with a driving cavity for mounting the driving structure.

[0012] As a preferred technical solution, the driving structure comprises a motor, a driving shaft, a bearing and a gear, the gear is rotatably arranged in the driving cavity through the bearing, a plurality of gears are sequentially engaged from top to bottom, the uppermost gear is mounted at the end of the chuck, the lowermost gear is mounted at the end of the driving shaft, and the motor drives the driving shaft to rotate.

[0013] As a preferred technical solution, the gland is provided with a shaft sleeve, and the driving shaft is rotatably arranged in the shaft sleeve through the bearing.

[0014] The automatic chuck has the advantages that the driving structure drives the chuck to rotate, thereby realizing automatic locking or disassembling of screws, manual operation is not needed, production efficiency is improved, the chuck and the screw can be in flexible contact through the ball sleeve and the screw, the chuck or the screw is avoided, the chuck can gradually descend along the ball sleeve under the driving of the spring when the screw is locked, a descending mechanism is not needed, and equipment cost is saved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 4 is a partial cross-sectional view of the automatic chuck according to the present application;

[0016] Figure 2 FIG. 5 is a structural schematic view of the automatic chuck according to the present application;

[0017] Figure 3 FIG. 6 is an exploded schematic view of the automatic chuck according to the present application. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0019] Please refer to Figure 1 , Figure 2 and Figure 3As shown, an automatic batch head comprises a support 1, a base 2, a gland 3, a batch head seat 5, a ball sleeve 6, a limiting frame 7, a screw 8, a batch head 9, a spring (not shown in the figure) and a driving structure 4, the gland 3 is installed on the base 2 through the screw 8, the support 1 is installed on the base 2 through the screw 8, the two ends of the ball sleeve 6 are respectively fixed on the support 1 and the base 2, the batch head seat 5 is provided with a ball hole 52, a suction nozzle 51 and a spring hole 53, the ball sleeve 6 is arranged in the ball hole 52, the support 1 is provided with an emptying groove 11, the batch head 9 passes through the emptying groove 11 and is installed in the suction nozzle 51, so that the batch head 9 avoids contacting with the support 1, thereby reducing the friction and prolonging the service life, the driving structure 4 is installed on the base 2 and the gland 3, the driving structure 4 drives the batch head 9 to rotate, thereby locking or loosening the screw, the limiting frame 7 is fixed on the support 1, and the upper end of the limiting frame 7 is provided with a supporting groove 71, the batch head 9 passes through the supporting groove 71 to the base 2, and is used for positioning and guiding the batch head 9 to move, the spring is arranged in the spring hole 53, one end of the spring abuts against the bottom of the spring hole 53, and the other end of the spring abuts against the limiting frame 7, when the batch head 9 contacts with the screw, the spring is compressed under the force, the support 1 moves along the ball sleeve 6, the batch head 9 flexibly contacts with the screw, rigid contact is avoided to cause the batch head 9 or the screw to break down, and the batch head 9 can gradually descend along the ball sleeve 6 under the driving of the spring along with the locking of the screw, without the need of adding a descending mechanism, thereby saving the equipment cost, in particular, the limiting frame 7 is in the shape of a cross-shaped frame, and the limiting frame 7 can be stably fixed on the support 1.

[0020] Specifically, the base 2 is provided with a driving cavity 21 for installing the driving structure 4, the driving structure 4 comprises a motor (not shown in the figure), a driving shaft 41, a bearing 43 and a gear 42, the gear 42 is rotatably arranged in the driving cavity 21 through the bearing 43, and a plurality of gears 42 are sequentially meshed from top to bottom, the uppermost gear 42 is installed at the end of the batch head 9, and the lowermost gear 42 is installed at the end of the driving shaft 41, the gland 3 is provided with a shaft sleeve 31, the driving shaft 41 is rotatably arranged in the shaft sleeve 31 through the bearing 43, the motor drives the driving shaft 41 to rotate, thereby driving the batch head 9 to rotate through the plurality of gears 42, so as to lock or disassemble the screw, the driving of the motor is controlled through the PLC, and the control of the screw torque by the batch head 9 can be accurate to ±5%.

[0021] The above-described embodiments are only preferred examples of the present application, and do not limit the implementation range of the present application, so equivalent changes or modifications made according to the structure, features and principles described in the patent application range of the present application should be included in the patent application range of the present application.

Claims

1. An automated bit, characterized in that, The device includes a bracket, a base, a pressure cap, a bit holder, a ball bearing sleeve, a bit, and a drive structure. The pressure cap is mounted on the base with screws, and the bracket is mounted on the base with screws. The two ends of the ball bearing sleeve are fixed to the bracket and the base, respectively. The bit holder has a ball bearing hole and a suction nozzle. The ball bearing sleeve passes through the ball bearing hole, and the bit is installed in the suction nozzle. The drive structure is mounted on the base and the pressure cap, and the drive structure drives the bit to rotate.

2. The automated bit according to claim 1, characterized in that, It further includes a limiting frame, which is fixed on the bracket, and a support groove is provided at the upper end of the limiting frame, through which the bit passes to the base.

3. The automated bit according to claim 2, characterized in that, The limiting frame is cross-shaped.

4. The automated bit according to claim 3, characterized in that, It further includes a spring, the bit holder is provided with a spring hole, the spring is placed in the spring hole, one end of the spring abuts against the bottom of the spring hole, and the other end abuts against the limiting frame.

5. The automated bit according to claim 4, characterized in that, The bracket is provided with a clearance groove through which the bit passes.

6. The automated bit according to claim 4, characterized in that, The base is provided with a drive chamber for mounting the drive structure.

7. The automated bit according to claim 6, characterized in that, The drive structure includes a motor, a drive shaft, bearings, and gears. The gears are rotatably mounted in the drive chamber via the bearings, and multiple gears mesh sequentially from top to bottom. The uppermost gear is mounted on the end of the bit, and the lowermost gear is mounted on the end of the drive shaft. The motor drives the drive shaft to rotate.

8. The automated bit according to claim 7, characterized in that, The pressure cap is provided with a bushing, and the drive shaft is rotatably mounted in the bushing via the bearing.

Images