CN210023849U - Many batches of first fast switch-over electric hand drills - Google Patents

Abstract

The utility model discloses a first fast switch-over electric hand drill of many batches, including last shell and lower shell, the battery is installed to shell handle department inboard down, shell upper portion inboard is installed the motor down, installs the main band pulley on the motor shaft of motor, the fixed shell that is provided with in shell upper end down goes up the shell rear end and installs the back shroud, go up the shell anterior segment and install the mounting disc, seted up six mounting holes on the mounting disc, the mounting hole passes through the bearing and connects batch head, batch head mid-mounting has driven gear, go up inside by the back before having set gradually fender dish, chuck and fixed disk of shell, keep off dish, chuck and fixed disk middle part and pass through the bearing and connect the main shaft jointly. This criticize first fast switch-over electric hand drill structural design is reasonable, criticizes with traditional flashlight and compares, and this kind of flashlight is criticized and is had the screw that quick replacement criticized the head and adapt to the polytypic specification, improves production efficiency.

Description

Many batches of first fast switch-over electric hand drills

Technical Field

The utility model relates to a hand drill provides a many batches of first fast switch-over electric hand drills very much.

Background

For assembly, a device often has many specifications of screws, a part may have several specifications of screws, and most of the screws belong to socket head cap screws, such as socket head cap screws M3/M4/M5/M6, etc. when an assembler works, in order to improve efficiency and control screw torque, the screws are usually drilled by a hand drill. The general electric hand drill can only clamp a batch head, screws a type of screw, often will change the batch head of electric hand drill when assembling a part so, and a large amount of manpower and materials have been wasted to this process, influence production efficiency.

Accordingly, a multi-bit fast-switching electric hand drill has been provided to solve the problems set forth in the background art as described above.

Disclosure of Invention

An object of the utility model is to provide a first fast switch-over electric hand drill of many batches to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a multi-batch-head fast-switching electric hand drill comprises an upper shell and a lower shell, wherein a battery is installed on the inner side of a handle of the lower shell, a motor is installed on the inner side of the upper portion of the lower shell, a main belt wheel is installed on a motor shaft of the motor, the upper end of the lower shell is fixedly provided with the upper shell, a rear cover plate is installed at the rear end of the upper shell, an installation disc is installed at the front section of the upper shell, six installation holes are formed in the installation disc, the installation holes are connected with the batch heads through bearings, a driven gear is installed in the middle of the batch heads, a blocking disc, a chuck and a fixed disc are sequentially arranged in the upper shell from back to front, the middle parts of the blocking disc, the chuck and the fixed disc are jointly connected with a main shaft through bearings, a driving gear is installed at the front end of the main, correspond on the chuck and criticize first department and seted up the draw-in groove, draw-in groove sliding connection control lever, the control lever rear end runs through the fender dish and overlaps and be equipped with first spring, correspond control lever department on the back shroud and seted up the through-hole, the back shroud passes through-hole sliding connection and presses the lid, criticize first rear end connection fixed disk.

As an improvement: the fixed disk comprises a baffle, a disk body, a sleeve linear bearing and a second spring, the corresponding batch head part on the disk body is provided with an assembly hole, the sleeve linear bearing is installed in the assembly hole, the sleeve linear bearing is sleeved with the batch head, the two ends of the disk body are fixedly connected with the baffle, the baffle is connected with the batch head through the bearing, the rear part of the batch head is sleeved with the second spring, and the second spring is positioned inside the disk body and at the front side of the sleeve linear bearing.

As a further improvement: the control rod is provided with a wedge-shaped clamping column corresponding to the clamping groove in an integrated forming mode.

As a further improvement: and the bearing between the batch head and the mounting disc is a sleeve type linear motion bearing.

Compared with the prior art, the utility model has the advantages of: this criticize first fast switch-over electric hand drill structural design is reasonable, criticizes with traditional flashlight and compares, and this kind of flashlight is criticized and is had the screw that quick replacement criticized the head and adapt to the polytypic specification, improves production efficiency.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and embodiments:

fig. 1 is a schematic structural diagram of a multi-batch head fast-switching electric hand drill.

Fig. 2 is a partial block diagram of a multi-batch head fast-switch electric hand drill.

Fig. 3 is a view showing an internal structure of a fixed disk in a multi-batch head quick-switching electric hand drill.

In the figure: the device comprises a battery 1, a lower shell 2, a motor 3, an upper shell 4, a rear cover plate 5, a pressing cover 6, a first spring 7, a baffle disc 8, a main shaft 9, a control rod 10, a spring plate torsion spring 11, a chuck 12, a fixed disc 13, a driving gear 14, a mounting disc 15, a screwdriver head 16, a baffle 131, a disc body 132, a sleeve linear bearing 133, a second spring 134, a driven gear 17, a belt 18 and a main belt wheel 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a multi-batch head fast switching electric hand drill includes an upper housing 4 and a lower housing 2, a battery 1 is installed at the inner side of the handle of the lower housing 2, a motor 3 is installed at the inner side of the upper portion of the lower housing 2, a main belt wheel 19 is installed on the motor shaft of the motor 3, the upper housing 4 is fixedly installed at the upper end of the lower housing 2, a rear cover plate is installed at the rear end of the upper housing 4, an installation disc 15 is installed at the front section of the upper housing 4, six installation holes are formed in the installation disc 15, the installation holes are connected with a batch head 16 through a bearing, a driven gear 17 is installed at the middle part of the batch head 16, a blocking disc 8, a chuck 12 and a fixed disc 13 are sequentially installed inside the upper housing 4 from back to front, the middle parts of the blocking disc 8, the, the front portion of the main shaft 9 is provided with a driven belt wheel at the rear side of the driving gear 14, the driven belt wheel is connected with a main belt wheel 19 through a belt 18, the middle portion of the main shaft 9 is provided with an elastic piece torsion spring 11 at the rear side of a chuck 12, a clamping groove is formed in the position, corresponding to a screwdriver bit 16, of the chuck 12, the clamping groove is connected with a control rod 10 in a sliding mode, the rear end of the control rod 10 penetrates through a baffle disc 8 and is provided with a first spring 7 in a sleeved mode, a through hole is formed in the position, corresponding to the control rod 10, of the rear cover plate 5, the rear.

The fixed disk 13 comprises a baffle 131, a disk body 132, a sleeve linear bearing 133 and a second spring 134, an assembly hole is formed in the disk body 132 corresponding to the batch head 16, the sleeve linear bearing 133 is installed in the assembly hole, the batch head 16 is sleeved on the sleeve linear bearing 133, the baffle 131 is fixedly connected to two ends of the disk body 132, the batch head 16 is connected to the baffle 131 through a bearing, the second spring 134 is sleeved on the rear portion of the batch head 16, and the second spring 134 is located inside the disk body 132 and on the front side of the sleeve linear bearing 133.

The control rod 10 is integrally formed with wedge-shaped clamping columns corresponding to the clamping grooves.

The bearing between the bit 16 and the mounting plate 15 is a sleeve type linear motion bearing.

The utility model discloses a theory of operation is: the electric hand drill is powered by a battery 1 to drive a motor 3 to rotate, further, kinetic energy is transmitted to a driving gear 14 to rotate through a belt 18 and a driven pulley by a main pulley 19, six control rods 10 which can be like an automatic pen are contained in an upper shell 4, bits 16 of different specifications are pushed forwards, and power is transmitted to rotate and work by means of meshing of a driven gear 17 and the driving gear 14; the press cover 6 is pressed down forcibly to drive the control rod 10 and the screwdriver bit 16 to push forwards, and the driven gear 17 far away from the driving gear 14 is meshed to transmit power; at this time, the battery switch is started, and the rotation of the batch head 16 can be realized;

the automatic pencil has the advantages that the automatic pencil can freely switch the batch heads 16 of six different specifications, the press cover 6 is connected with the control rod 10, the diameter of the press cover 6 is larger than that of the control rod 10, and the first spring 7 in the press cover 6 is clamped on the press cover 6 and the baffle disc 8 to provide restoring power for the press cover 6. The control rod 10 is provided with a wedge-shaped clamping column, so as to clamp the control rod 10 and prevent the control rod 10 from retracting, wherein the chuck 12 is always acted towards the reset direction under the action of the elastic sheet torsion spring 11, when the pressing cover 6 is not pressed down, the wedge-shaped clamping column of the control rod 10 is arranged on the left side of the chuck 12, when the wedge-shaped clamping column starts to be pressed down, the chuck 12 starts to rotate on the same plane, after the wedge-shaped column is completely pressed down, the chuck 12 is reset under the action of the elastic sheet torsion spring 11, the control rod 10 is blocked below the chuck 12, when the other pressing cover 6 is pressed down, the wedge-shaped column can enable the chuck 12 to rotate, and at the moment, the other control rod 10 clamped by the chuck 12 can rise due to the elastic force of the spring of the pressing cover 6, so that the switching between one batch head and the other batch head.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (4)

1. The utility model provides a first fast switch-over electric hand drill of many batches, includes shell (4) and lower shell (2), battery (1) are installed to shell (2) handle department inboard down, motor (3) are installed to shell (2) upper portion inboard down, install on the motor shaft of motor (3) main band pulley (19), shell (2) upper end is fixed to be provided with shell (4), its characterized in that down: the rear cover plate is installed at the rear end of the upper shell (4), the mounting disc (15) is installed at the front section of the upper shell (4), six mounting holes are formed in the mounting disc (15), the mounting holes are connected with the screwdriver heads (16) through bearings, the driven gear (17) is installed in the middle of the screwdriver heads (16), the upper shell (4) is internally provided with the baffle disc (8), the chuck (12) and the fixed disc (13) from back to front in sequence, the middle parts of the baffle disc (8), the chuck (12) and the fixed disc (13) are jointly connected with the spindle (9) through the bearings, the driving gear (14) is installed at the front end of the spindle (9), the driven pulley is installed at the rear side of the driving gear (14) at the front part of the spindle (9), the driven pulley is connected with the main pulley (19) through a belt (18), the middle part of the spindle (9) is provided with the elastic torsion spring (11) at, draw-in groove sliding connection control lever (10), control lever (10) rear end run through fender dish (8) and the cover is equipped with first spring (7), correspond control lever (10) department on back shroud (5) and seted up the through-hole, back shroud (5) are through-hole sliding connection press lid (6), criticize first (16) rear end connection fixed disk (13).

2. The multi-batch head fast-switch electric hand drill of claim 1, wherein: fixed disk (13) are including baffle (131), disk body (132), sleeve linear bearing (133) and second spring (134), correspond batch head (16) department on disk body (132) and seted up the pilot hole, install sleeve linear bearing (133) in the pilot hole, sleeve linear bearing (133) cup joint batch head (16), disk body (132) both ends fixed connection baffle (131), batch head (16) are connected through the bearing in baffle (131), and batch head (16) rear portion cover is equipped with second spring (134), and second spring (134) are located disk body (132) inside and in the front side of sleeve linear bearing (133).

3. The multi-batch head fast-switch electric hand drill of claim 1, wherein: the control rod (10) is integrally formed with wedge-shaped clamping columns corresponding to the clamping grooves.

4. The multi-batch head fast-switch electric hand drill of claim 1, wherein: the bearing between the batch head (16) and the mounting disc (15) is a sleeve type linear motion bearing.

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