KR100979969B1 - Handle type Press inserting a bush into the hole - Google Patents

Abstract

The present invention relates to a bushing type handle type indenter for press-fitting a bush to an object, comprising: a drill (110) having a drive switch (113) for manipulating the rotation and rotation direction of the rotary shaft (111); One end is fixed to the rotating shaft 111 and the other end is a bar-shaped shaft 120 is formed with a screw 121; A through hole 142 through which the other end of the shaft 120 protrudes is formed to be rotatably seated, and a cylinder groove 143 through which the fluid flows in and out through the inlets 144 and 145. The main body 141 is fastened to the drill 110 through the 130, and is fitted into the cylinder groove 143 so as to move in the longitudinal direction of the shaft 120 in accordance with the hydraulic change and the other end of the shaft 120 and A hydraulic cylinder 140 having a piston 146 protruding side by side; And it is connected to the end of the piston 146 to penetrate the shaft 120 is fixed to the body 141 so as to move, the front end portion includes a presser 170 in contact with the bushing (20).

Description

Handle type press indenter for bushing fixing {Handle type Press inserting a bush into the hole}

The present invention relates to a bushing type handle type indenter for bush indentation into an object.

When assembling two or more materials together, the target material must be assembled correctly to the design. However, in the production line for assembling using automated equipment, precise assembly was not guaranteed because the equipment is not aligned with the location of the materials to be assembled with each other.

Therefore, in order to perform precise assembly between materials in automated equipment, bushes are assembled to materials to artificially form protrusions, and other materials joining the materials form grooves at positions engaged with the protrusions. The physical engagement between the bush and the groove is achieved. In other words, because the bush to hold the assembly position between the materials, it is possible to connect and fix the material correctly without leaving.

A separate groove may be arbitrarily formed in the material for inserting the bush, but it is preferable to insert the bush into a groove into which a separate fastening means such as a bolt or a pin is fitted. I can solidify it with an assembly.

1 is a cross-sectional view schematically illustrating a state in which a bush is pressed into an object and an object and an assembly object are assembled to each other.

As described above, the bush 20 is used as a criterion for matching the assembly position between the materials (hereinafter referred to as "object" and "assembly object"), and fastening means (hereinafter referred to as a binding object). The bolt is pressed into the groove 11 into which it is fitted.

As shown in FIG. 1B, the bushing 20 press-fitted into the groove 11 of the object 10 protrudes to a predetermined length, and the protruding bush 20 is assembled to the object 10. It is inserted into the groove 31 of the object 30. As a result, the object 10 and the assembly object 30 are naturally positioned with each other while the grooves 11 and 31 of the object 10 to which the bolt 40 is fitted and the grooves 11 and 31 of the assembly object 30 are engaged with each other via the bushing 20. And, while fitting the bolt 40 to the grooves 11 and 31 located in this way, the object 10 and the assembly object 30 achieve precise assembly. For reference, female threads 12 corresponding to bolts 40 are formed on the inner surfaces of the grooves 11 and 31.

On the other hand, in order to realize such precision assembly, the press-in operation of the bushing 20 must be preceded. Bush 20 is a ring-shaped member that is engaged with the inner surface of the grooves 11 and 31, as shown in the figure, sufficient fixation to hold and support the position of the interlocking object 10 and the assembly object 30 Since it should be provided, it should fit tightly into the groove (11, 31). In other words, the press-fitting operation of the bush 20 is not easy for the manpower.

For the press-fitting operation of the bush 20, a conventional air hammer was used. Airhammer is a well-known as the pneumatically applied to the bore (20) while the striking force that strikes the engagement with the bush 20, the bush 20 is forced to the groove (11) by the pressure applied by the well Is inserted.

By the way, the conventional air hammer was a large noise on-site as the blow method is applied, and the vibration caused by the blow was transmitted to the worker holding the air hammer as it is, so as to feel the fatigue of the work easily.

In addition, the airhammer is equipped with a separate support to cushion the repulsive force generated when the strike, the support is designed to optimize the buffering efficiency against the repulsive force received from the tablet, so that the indentation direction of the bushing 20 must be fixed in one direction did. As a result, since the position of the object 10 should be disposed in accordance with the indentation direction of the air hammer, in order to press the bush 20 into the object 10 to which the bushes 20 arranged in various directions are to be installed, The hassle of changing and adjusting the position from time to time was inevitable.

Accordingly, the present invention has been made to solve the above problems, it is possible to easily indent the bushes respectively indented in various locations in one object without adjusting the position of the object, to minimize the relative fatigue that the operator feels It is a technical problem to provide a bushing type push indenter.

According to an aspect of the present invention,

A drill having a drive switch for manipulating the rotation and the direction of rotation of the rotary shaft;

One end is fixed to the rotary shaft and the other end is a bar-shaped shaft formed with a screw;

A through hole through which the other end of the shaft protrudes, and a through hole in which the shaft is rotatably seated, and a cylinder groove through which the fluid flows in and out through the outlet, and a main body engaged with the drill through the fixed body; A hydraulic cylinder having a piston inserted into the cylinder groove so as to move toward the end thereof and having a piston projecting alongside the other end of the shaft; And

A pressurizing zone connected to the end of the piston so as to penetrate the shaft and movably fixed to the main body, the front end being in contact with the bush;

Bushing type push indenter comprising a.

The present invention, while being a portable handle type can be easily adjusted and changed the position of the indenter according to the indentation direction of the bush, it is not necessary to perform the task of detaching the object in accordance with the indentation direction of the bush. In addition, the vibration and noise generated during the bush indentation process can be greatly reduced, thereby reducing the worker's fatigue and improving the working environment.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a perspective view showing a state of the press according to the present invention, Figure 3 is a perspective view showing an exploded view of the press shown in Figure 2, it will be described with reference to this.

The indenter 100 according to the present invention includes a drill 110 having a gun shape, a shaft 120 rotating with the rotational force of the drill 110, and a drill 110 while rotatably supporting the shaft 120. Received by the hydraulic pressure of the hydraulic cylinder 140 and the hydraulic cylinder 140 is connected to the stationary body 130, the stationary body 130 connected to the drill 110 and rotatably supporting the shaft 120, It includes a pressurizing table 170 forcibly moving in the horizontal direction, the push valve 150 or the handle 160 may be further included to facilitate the operator's operation.

Drill 110 is a handle 112 that can be lifted by the operator, the drive switch 113 is disposed on the handle 112 in a trigger shape, and the rotating shaft 111 to rotate when the operator rotates the drive switch 113 It includes.

Drill 110 is a mechanism for rotating the rotating shaft 111 that can be utilized for various purposes, such as bolting, drilling, as is well known, the rotational force required for this may be provided from an electric motor or a pneumatic screw tool. In general, the workplace is provided with a power cable and a pneumatic cable, it is also preferable that the compact and lightweight to facilitate the handling of the operator, the drill 110 according to the present invention is an electric motor or a drive source of the rotary shaft 111 Pneumatic threaded tools may be applied. On the other hand, the drill 110 should be able to adjust the rotation direction of the shaft 120 for the attachment and detachment between the shaft 120 and the object (10).

The shaft 120 has a bar shape in which one end is fixed to the rotary shaft 111 to rotate, and the other end is formed with a screw 121 corresponding to the female screw 12 formed in the groove 11. Accordingly, when the other end of the shaft 120 is driven to the groove 11 and the drill 110 is driven, the screw 121 of the shaft 120 is inserted into the groove 11 while being engaged with the female screw 12. For reference, the shaft 120 and the rotating shaft 111 are firmly coupled via the connector 122, and the shaft 120 and the rotating shaft 111 may be detachably attached to each other for replacement and management of the shaft 120. It is preferable.

The hydraulic cylinder 140 is a pressure generating means for press-fitting the bush 20 into the groove 11, and is integrally coupled to the drill 110 via the fixing body 130. Meanwhile, the shaft 120 penetrates through the hydraulic cylinder 140 so that the other end thereof protrudes from the front end surface of the main body 141 of the hydraulic cylinder 140. To this end, the hydraulic cylinder 140 rotates the shaft 120. The through hole 142 penetrates as possible.

Figure 4 is a cross-sectional view schematically showing the internal appearance of the hydraulic cylinder according to the present invention, will be described with reference to this.

The hydraulic cylinder 140 moves in accordance with the hydraulic pressure change of the cylinder groove 143 and the main body 141 including the cylinder groove 143 through which the fluid enters and the through hole 142 through which the shaft 120 rotates. And the distal end includes a piston 146 protruding side by side on the front end surface of the main body 141 from which the shaft 120 protrudes. At this time, the cylinder groove 143 is formed with the outlet inlet (144, 145) for entering and exiting the fluid, the outlet inlet (144, 145) to be divided into the first and second outlet inlet (144, 145) according to the operation method Can be.

Meanwhile, as described above, the hydraulic cylinder 140 is a mechanism for forcibly pressing the bush 20 inserted into the groove 11, and the piston 146 directly applying pressure to the bush 20 is provided with the groove 11. It must be adjacent to the shaft 120 passing through the bush 20 while engaging. Accordingly, the piston 146 has a tubular shape surrounding the shaft 120 to apply a direct pressure to the bushing 20 surrounding the shaft 120, and correspondingly the cylinder groove (14) into which the tubular piston 146 is fitted. 143) will also be formed to surround the through-hole 142. Of course, the through hole 142 and the cylinder groove 143 are completely isolated.

Since the piston 146 applies pressure to the bushing 20 via the pressurizing table 170 which is in direct contact with the bushing 20, the pressurizing table 170 may transmit pressure evenly to the entire bushing 20. If there is, the shape and structure of the piston 146 and the cylinder groove 143 is not limited to the above-described details can be variously modified.

Subsequently, the operation of the hydraulic cylinder 140 according to the present invention will be described in detail with reference to the embodiment shown in FIG. 4.

Hydraulic cylinder 140 according to the present invention includes a cylinder groove 143 formed to surround the through hole 142, the first and second outlet inlet (144, 145) is communicated before and after the cylinder groove 143, respectively It is provided to. The first and second outlets 144 and 145 may be fitted with a pair of hydraulic cables (not shown) or a pneumatic cable and a hydraulic cable, respectively, and the hydraulic cable is fixed to the hydro unit. Here, the hydro unit is a device for generating hydraulic pressure by using a fluid, forcibly introducing the fluid into the first and second outlets 144 and 145 through the hydraulic cable, and the fluid introduced in this way adjusts the hydraulic pressure of the cylinder groove 143. To control the movement direction of the piston 146.

In more detail, when the hydro unit forcibly introduces the fluid into the first outlet port 144 located at the front end of the hydraulic cylinder 140, the cylinder groove is compartmentd via the hydraulic plate 146a of the piston 146. The front end of 143 moves the piston 146 backward while having a relatively large hydraulic pressure compared to the rear end. Of course, the fluid filled in the rear end is discharged through the second outlet (145) (see Fig. 4 (a)).

On the other hand, when the hydro unit forcibly flows fluid into the second outlet inlet 145 located at the rear end, the rear end of the cylinder groove 143 moves the piston 146 forward while having a relatively large hydraulic pressure compared to the front end. . Of course, the fluid filled in the front end portion is discharged through the first outlet (144) (see Fig. 4 (b)).

In addition, the first outlet port 144 may be connected to the pneumatic cable, the second outlet port 145 may be connected to the hydraulic cable. That is, since the large pressure is not required when moving the piston 146 backward, pneumatic pressure is used, and when the piston 146 is moved forward, sufficient pressure for press-fitting the bushing 20 is required, so that hydraulic pressure is used. . As a result, the hydro unit is connected to the hydraulic cable connected to the second outlet 145, the pneumatic cable connected to the first outlet 144 will be connected to a separate pneumatic control unit.

According to the driving mode described above, the piston 146 generates a pressing force for press-fitting the bushing 20.

Pressing table 170 is a medium for transmitting the piston 146 and the pressure input to the bush 20, a jig 172 having a shear formed so that the pressure applied to the piston 146 is concentrated on the bush 20, Including a press tool 171 for connecting the piston 146 and the jig 172, the press tool 171 and the jig 172 is coupled to the spring 173 by moving and elastically, the bush 20 It provides the mobility of the jig 172 for providing a free space during the press-in operation of.

Since the pressurizer 100 according to the present invention has mobility so as to be easily handled by an operator, the switches for the operation of the drill 110 and the operation of the hydraulic cylinder 140 are preferably provided in the indenter 100. Do. To this end, the drill 110 is provided with a drive switch 113, the hydraulic cylinder 140 is provided with a push valve 150 for the operation of the hydro unit.

However, since the push valve 150 is for controlling the hydro unit separated from the indenter 100, the push valve 150 may be disposed separately from the indenter 100. That is, it is manufactured in the form of a scaffold which is another embodiment, the operator may operate the push valve 150 by the foot to drive the hydraulic cylinder 140. However, since the push valve 150 is limitedly disposed at a specific position, the push valve 150 is fixed to the hydraulic cylinder 140 to ensure the mobility of the indenter 100 according to the present invention. It would be desirable to achieve. Here, the bracket 151 is a fixing means for fixing the push valve 150 to the main body 141 of the hydraulic cylinder 140.

Fluid flowing into the hydraulic cylinder 140 may be moved by various driving sources. That is, the driving source may be a motor driven by electric power, or may be air equipment using pneumatic pressure. Therefore, since the push valve 150 is an operation means for operating a drive source for introducing the fluid into the hydraulic cylinder 140, the push valve 150 is not limited to the operation for the hydro unit.

The handle 160 is formed to protrude from the main body 141, so that the operator can hold and use the indenter 100 with both hands.

The ring 180 is connected to a rope or connecting rod fixed to a separate fixing rod in order to flowably support the indenter 100 having a relatively large weight, and the operator lifts the indenter 100 directly or during the indentation process. It is not necessary to support all the weight of the indenter 100 so that the fixing rod bears it.

5 to 7 are cross-sectional views schematically showing the indentation process of the bush using the indenter according to the present invention, will be described with reference to this.

5 and 6, after inserting the bush 20 into the groove 11 of the object 10, the shaft 120 is fixed to the groove 11 through the bush 20. At this time, the screw 121 formed in the shaft 120 is engaged with the female screw 12 of the groove 11, the operator operates the drive switch 113 of the drill 110 to rotate the bolt 120 to bolt. .

When the shaft 120 is firmly fixed to the groove 11 and the thread coupling, and the indenter 100 is tightly coupled to the object 10, the operator operates the push valve 150 to introduce fluid into the hydraulic cylinder 140. Let's do it. Of course, the inflow of the fluid forcibly moves the pressing table 170, and the pressing table 170 to move in such a way to press the bush 20. At this time, the repulsive force received by the presser 170 is supported by the shaft 120 firmly coupled to the groove 11, so that the operator does not need to receive or support an external force during the press-fitting operation. In addition, since the press-in of the bushing 20 is a push method by hydraulic pressure instead of a hitting method, noise due to hitting does not occur at all.

Subsequently, the operator sees that the press-fit of the bush 20 is completed when the hydraulic pressure of the hydraulic cylinder 140 reaches a certain hydraulic pressure or more, and operates the drill 110 to reversely rotate the shaft 120. Of course, the reverse rotation shaft 120 is released from the groove 11 as shown in Figure 7 as the thread coupling is released, the object 10 and the indenter 100 is separated.

1 is a cross-sectional view schematically illustrating a state in which a bush is pressed into an object and an object and an assembly object are mutually assembled;

2 is a perspective view showing a state of a presser according to the present invention,

3 is an exploded perspective view showing the presser shown in FIG.

Figure 4 is a cross-sectional view schematically showing the inside of the hydraulic cylinder according to the present invention,

5 to 7 are cross-sectional views schematically illustrating the indentation process of the bush using the indenter according to the present invention.

-Explanation of terms for main parts of attached drawings-

10; Object 11; home

12; Female thread 20; Bush

30; Assembly object 40; volt

100; Indenter 110; drill

120; Shaft 130; Fixture

140; Hydraulic cylinder 150; Push valve

160; Handle 170; Pressurization

180; ring

Claims (7)

Drill 110 having a drive switch 113 for manipulating the rotation and rotation direction of the rotary shaft 111; One end is fixed to the rotating shaft 111 and the other end is a bar-shaped shaft 120 is formed with a screw 121; A through hole 142 through which the other end of the shaft 120 protrudes is formed to be rotatably seated, and a cylinder groove 143 through which the fluid flows in and out through the inlets 144 and 145. The main body 141 is fastened to the drill 110 through the 130, but the cylinder groove 143 is formed to surround the periphery of the through hole 142, so that the cylinder groove 143 and the through hole 142 are isolated from each other. And, the piston 146 is inserted into the cylinder groove 143 while forming a tubular shape surrounding the shaft 120 to move in the longitudinal direction of the shaft 120 in accordance with the hydraulic pressure and the end protrudes in parallel with the other end of the shaft 120 Hydraulic cylinder having a 140; And A pressurizer 170 connected to an end of the piston 146 so as to penetrate the shaft 120 and movably fixed to the main body 141 and having a front end contacting the bush 20; Bushing handle type indenter, characterized in that it comprises a. The method of claim 1, The presser 170 has a jig 172 formed so that the front end is in contact with the bush 20 and a press tool 171 for firmly fixing the piston 146 and the jig 172 to each other. Bushing type push indenter. delete The method of claim 1, The cylinder groove 143 is partitioned into a front end and a rear end based on the hydraulic plate 146a formed in the piston 146, and the outlet inlets 144 and 145 are connected to the first outlet inlet 144 in communication with the front end. Bushing type handle indenter characterized in that the second outlet inlet 145 communicates with the rear end. The method of claim 1, Bushing type handle indenter, characterized in that the push valve 150 for controlling the hydraulic pressure of the hydraulic cylinder 140 is coupled to the main body (141). The method of claim 1, The main body 141 is a bushing type handle indenter further comprises a handle 160 fixed to be gripped by the worker. The method of claim 1, The body 141 is a bushing type handle indenter, characterized in that it further comprises a ring (180) fixed to secure the indenter.

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