KR0156405B1 - Cartridge assembly device of shock absorber - Google Patents

Abstract

The present invention relates to a cartridge absorber assembly for shock absorbers capable of shortening working time by unifying a screw ring after inserting a cartridge into a strut of a shock absorber, and taking out a cartridge after assembling the screw ring. The main body 21 is interposed between the main body 21 provided with the plate 32 moving up and down along the guide bar 28 and the upper frame 26 so as to be interlocked with the plate 32 by the chain 60. By rotating the socket (40) connected to the connector 42 and the compensation weight 66 that moves up and down along the guide pipe 22 connected to the), tightening the screw ring 20, the upper portion of the strut 10 A nut fastener 34 for fixing the cartridge 16, a first air cylinder 71 for raising the plate 32 first, a second air cylinder 72 for raising the second, and a first air cylinder ( On the piston rod 18 of the cartridge 16 lifted by the operation of 71. And it clamps 56, 58 for clamping the screw portion 19, and is composed of these clamps 56 and a clamp cylinder 50 for moving (58).

Description

Shock absorber cartridge assembly

The present invention relates to a cartridge assembly of a shock absorber, and more specifically, to inserting the cartridge into the strut of the shock absorber and then assembling the screw ring, and the process of drawing out the cartridge after assembling the screw ring. The present invention relates to a cartridge assembly device for shock absorbers that can shorten working time.

In general, the suspension device of the car connects the axle and the body, and attenuates vibrations or shocks received from the road surface to prevent the body from being damaged directly while the vehicle is running. As the holding device, there are a coil spring for alleviating the shock received from the road surface, and a shock absorber for suppressing free vibration of the coil spring to improve ride comfort.

1 is a schematic view showing the structure of a general automobile shock absorber, the lower part of the strut 10 of the shock absorber is connected to the lower control arm by a bracket 14, and the piston rod 18 is formed at the upper inlet 12. The cartridge 16 is inserted to provide a damping force while the piston (not shown) connected to the upper and lower movements. After the cartridge 16 is inserted, the screw ring 20 is assembled. The upper flange 20b of the screw ring 20 is formed with a through hole 20c installed through the piston rod 18. The screw 20a is formed on the outside and is fastened to the inlet 12 of the strut 10.

In the conventional shock absorber assembling apparatus for assembling the cartridge to the strut of the shock absorber having such a structure, first, the cartridge 16 is inserted into the strut 10, and then the screw ring 20 is assembled to attach the cartridge 16. In order to attach the upper end of the shock absorber to the wheel house, the operator grasps the piston rod 18 by hand and pulls out the cartridge 16.

In the conventional shock absorber assembling apparatus having such a configuration, the process of fixing the cartridge 16 to the strut 10 of the shock absorber and the process of drawing out the cartridge 16 are separated. Since the worker takes out the drawing work by hand, there is a problem that the workability is considerably reduced.

The present invention devised to solve this problem is a process of assembling the screw ring to the cartridge inserted into the shock absorber, and after clamping the cartridge with the clamp first raised by the first air cylinder, the second air cylinder It is an object of the present invention to provide a shock absorber cartridge assembly device capable of shortening the working time by unifying the process of drawing the cartridge by raising the secondary.

The above object of the present invention is a cartridge absorber assembly of a shock absorber, which is fixed to a shock absorber by inserting a cartridge into the shock absorber strut, and fixed with a screw ring, the main body having a plate moving up and down along a guide bar, and linked with the plate by a chain. Compensation weight that moves up and down along the guide pipe connected to the main body through the upper frame as much as possible, and nut fastener for fixing the cartridge on the upper part of the strut by rotating the socket connected to the connector and tightening the screw ring. A first air cylinder to be raised and a second air cylinder to be raised secondly, a clamp for clamping a thread formed in the piston rod of the cartridge lifted by the operation of the first air cylinder, and a clamp cylinder for moving the clamp. It is achieved by the cartridge assembly of the shock absorber characterized in that.

1 is a schematic view showing the structure of a shock absorber for a typical vehicle

Figure 2 is a front view showing the configuration of the cartridge assembly of the shock absorber according to the present invention

Figure 3 is a side view showing the configuration of the cartridge assembly of the shock absorber according to the present invention

Figure 4 is a plan view showing the configuration of the clamp employed in the present invention

Explanation of symbols for the main parts of the drawings

10: Strut 16: Cartridge

18: piston road 19: screw

20: screw ring 21: body

22: guide 26: upper frame

28: guide bar 30: government

32: Plate 34: Nut fastener

36: Connecting rod 38: Fixed bracket

40: Socket 42: Connector

50: clamp cylinder 52: guide rod

54: Retainer 56, 58: Clamp

56a, 58a: Pressing stage 60: Chain

62: retaining pin 64: roller

66: complementary lettuce 71, 72: first, second air cylinder

Hereinafter, with reference to the accompanying Figures 2 to 4 will be described in detail the cartridge assembly of the shock absorber according to a preferred embodiment of the present invention.

Figure 2 is a front view showing the configuration of the cartridge assembly of the shock absorber according to the present invention, Figure 3 is a side view showing the configuration of the cartridge assembly of the shock absorber according to the present invention.

First, as shown in FIG. 2, when the cartridge 16 is inserted into the strut 10 of the shock absorber, the overall configuration of the cartridge assembly of the shock absorber according to the present invention, which is fixed by the screw ring 20, The main body 21, the upper frame 26 provided on the upper part of the main body 21, the plate 32 which moves up and down along the guide bar 28 fixed to this upper frame 26, and a connecting rod ( The shock absorber is moved along the guide rod 52 attached to the fixing bracket 38 by the retainer 54 and the fixing bracket 38 coupled to the lower end 32a of the plate 32 via 36. It consists of clamps 56, 58 for clamping the threaded portion 19 formed on the upper piston rod 18.

In addition, as shown in the right side of FIG. 2, the lower frame 25 and the upper frame 26 which are welded to the main body 21 are connected through the guide tube 22, and the guide tube 22 is provided. A counter weight 66 that is moved up and down while interlocking with the plate 32 through the chain 60 is embedded therein. The compensating weight 66 serves to raise the lowered plate 32 according to the action of the first air cylinder 71 and the second air cylinder 72 described in FIG. 3. Here, the chain 60 transmits power while moving along the sprocket wheel 64 rotatably mounted to the upper frame 26 by the fixing pin 62.

Here, the plate 32 is installed to slide up and down along the guide bar 28 fixed to the upper frame 26 by the fixing portion 30 formed on one side thereof. In addition, the plate 32 is provided with a nut runner 34 to which the socket 40 is coupled.

3, the nut fastener 34 is installed to move up and down along the guide rail 28, and serves to fix the screw ring 20 to the strut 10 of the shock absorber. That is, the nut fastener 34 is connected to the connector 42 which is detachably installed, and the socket 40 into which the flange 20b of the screw ring 20 is inserted is coupled to the lower part of the connector 42. have. Therefore, if the cartridge 16 is inserted into the strut 10 of the shock absorber and then the nut fastener 34 is rotated, the connector 42 is rotated integrally to rotate the socket 40 to rotate the screw ring 20. Is fixed on the strut 10 of the shock absorber to assemble the cartridge 16. As such, after assembling the cartridge 16 to the strut 10, the cartridge 16 must be taken out for mounting in the wheel house, in which case the first and second air cylinders 71 as shown in FIG. ), (72).

The first air cylinder 71 serves to clamp the threaded portion 19 of the piston rod 18 embedded in the cartridge 16 by raising the plate 32 primarily by pneumatic pressure, and the second air cylinder 72. ) Raises the plate 32 again to the secondary to draw the cartridge through the clamped piston rod 18, thereby enabling mounting to the wheel house.

At this time, the clamps 56 and 58 of the present invention for clamping the piston rod 18 of the shock absorber are guide rods 52 by the operation of the clamp cylinder 50, as shown in detail in FIGS. 2 and 4. ) Has a structure to move along. That is, the retainer 54 is fixed to the fixing bracket 38 suspended from the lower end 32a of the plate 32 via the connecting rod 36, and the guide rod 52 is installed on the retainer 54. It is. Accordingly, the clamps 56 and 58 move along the guide rod 52 in accordance with the operation of the clamp cylinder 50 to clamp the threaded portion of the piston rod 18.

Referring to Figure 4 describes the movement of the clamp, the actuation rod 51 is installed in the clamp cylinder 50, the first clamp 56 is coupled to one end of the actuation rod 51 by a nut have. Moreover, the 2nd clamp 58 arrange | positioned facing this 1st clamp 56 is being fixed to the clamp cylinder 50. As shown in FIG. Therefore, when pneumatic pressure is supplied to the clamp cylinder 50 to pull the actuating rod 51, the actuating rod 51 is inserted into the clamp cylinder 50, and the first clamp 56 and the second clamp 58 are While narrowing along the guide rod 52, the threaded portion 19 of the piston rod, shown in phantom, is clamped by the first and second pressing ends 56a, 58a.

After being clamped in this way, the actuating rod 51 is operated by the pneumatic pressure supplied to the clamp cylinder 50 through another path after the cartridge is withdrawn as the second ascending in accordance with the operation of the second air cylinder 72. The first clamp 56 and the second clamp 58 are spaced apart along the guide rod 52 in a direction away from each other, thereby waiting for the next operation.

Next, referring to FIG. 2 again, a process of fixing the cartridge to the strut of the shock absorber using the cartridge assembly device of the present invention having such a configuration and then extracting the same will be described.

First, after inserting the cartridge 16 into the strut 10 of the shock absorber, the screw ring 20 is placed on top of the strut 10. At this time, the plate 32 is lowered by the first air cylinder 71 and the second air cylinder 72 and positioned as shown in FIG. 2, whereby the nut fastener 34 is interposed through the connector 42. The socket 40 fixed to the screw 40 wraps around the screw ring 20 to complete the process of fixing the cartridge 16.

After the assembly of the screw ring 20 is completed, the nut 32 is moved upward along the guide bar 28 by the compensating weight 66 while pneumatic pressure is discharged from the first air cylinder 71. 34 is first raised to the position indicated by the dashed-dotted line. At this time, the clamp 56, 58, which is raised together with the plate 32 by the connecting rod 36, the pressing end 56a, 58a is horizontal with the threaded portion 19 of the piston rod 18. Is moved to the position.

Then, the clamp cylinder 50 is operated in accordance with the control signal, so that the first clamps 56, 58 and the second clamps 56, 58 gradually approach the first clamps according to the principle described in FIG. And the screw portions 19 are firmly gripped by the second pressing ends 56a and 58a.

Based on this signal, the control unit sends an output signal to the second air cylinder 72 to start discharging the pneumatic pressure. At this time, the plate 32 is raised by the weight of the compensating weight 66, and when the nut fastener 34 is raised to the position shown by the two-dot chain line, the operation of the second air cylinder 72 is stopped. By doing so, the piston rod 18 is drawn out to the mounting position of the wheel house.

As such, after the withdrawal of the cartridge 16 is completed, the first clamp 56, 58 and the second clamp 56, 58 are spaced apart according to the operation of the clamp cylinder 50. 56a) and 58a are separated from the threaded portion 19 of the piston rod 18 to complete the extraction process of the cartridge 16, and then return to the initial position.

The cartridge assembling apparatus of the shock absorber according to the present invention described above has a process of assembling a screw ring to a cartridge inserted into the shock absorber, and after clamping the cartridge with a clamp first raised by the first air cylinder, the second air By unifying the process of drawing up the cartridge by raising the cylinder secondarily, it is possible to shorten the working time and to improve the assemblability.

Claims (4)

In the shock absorber cartridge assembly device in which the cartridge 16 is inserted into the shock absorber strut 10 and then fixed with a screw ring 20, a plate 32 is installed to move up and down along the guide bar 28. Compensation weight 66 which moves up and down along the guide tube 22 connected to the main body 21 via the upper frame 26 so as to be interlocked with the main body 21 and the plate 32 by the chain 60. And a nut fastener 34 for fixing the cartridge 16 to the upper portion of the strut 10 by rotating the socket 40 connected to the connector 42 to tighten the screw ring 20. A first air cylinder 71 for raising the plate 32 first and a second air cylinder 72 for raising the second plate 32, and the cartridge 16 lifted by the operation of the first air cylinder 71; The clamps 56, 58 for clamping the threaded portion 19 formed on the piston rod 18 of the piston rod, and the clamps 56, 58 are moved. Key cartridge assembly unit of the shock absorber characterized in that the clamp consists of a cylinder 50. The fixing bracket 38 is fixed to the lower end 32a of the plate 32 via a connecting rod 36, and the fixing bracket 38 is connected to the fixing bracket 38 via a retainer 54. A shock absorber cartridge assembling apparatus, characterized in that the guide rods (52), which clamps (56) and (58) slide, are installed. 3. The cartridge assembly of the shock absorber according to claim 2, wherein the clamps (56) and (58) are accessed and spaced along the guide rod by an actuating rod (51) mounted to the clamp cylinder (50). Device. The upper part of the upper frame 26 is characterized in that the chain 60 connecting the plate 32 and the compensating weight 66 is rotatably mounted by the sprocket wheel 64. 조립 Absorber cartridge assembly.