KR100766046B1 - Fuel return hose assembly machine with function block - Google Patents

Abstract

A fuel return hose assembly machine with a function block is provided to reduce defects by sensing the existence of a clip for fixing a connection hose connected to a fuel pump and a common rail. A fuel return hose assembly machine includes a function block(11), a function block jig, a clamping function block jig and a clamping cylinder, and a control panel. The function block connects fuel introduced from a return hose(10), a common rail and a fuel pump to a fuel tank. The function block jig is arranged in the vicinity of an end hose jig on a table of a frame, and has a surface on which a function block is mounted. The clamping function block jig and a clamping cylinder are arranged on the function block jig, and holds the function block during assembly of a connector(15), a hose(16) and the function block. The control panel is arranged to control the clamping cylinder and exert an air pressure.

Description

Fuel return hose assembly machine with function block

1 is a front view showing a fuel return hose assembly machine equipped with a function block according to the present invention,

2 is a side view of FIG. 1,

3 is a plan view of FIG.

4 is an exploded perspective view showing a state in which a function block according to the present invention is mounted on a function block jig,

Figure 5a, 5b, 5c, 5d is a partial front view showing the operation of the fuel return hose assembly equipped with a function block according to the present invention,

6 is a perspective view illustrating a fuel return hose and a function block assembled through a fuel return hose assembly unit equipped with a function block according to the present invention.

<Description of the symbols for the main parts of the drawings>

10: fuel return hose 11: function block

11a: Coupler 12: Common Rail Connection Hose

13: fuel pump connection hose 14a, 14b: clip

15 Connector 16: Hose

17: connector jig 18: hose jig

19: jig plate 20: insert cylinder

21: clamping connector jig 22: clamping hose jig

23a, 23b, 23c: clamping cylinder 24: function block jig

24a: fixed pin 25: function block jig for clamping

25a: clamping protrusion 27a, 27b: sensor

28: first connection hose jig 29: second connection hose jig

30: jig plate 31: check valve

100: frame 110: table

120: control panel 130: air tank / valve

140: pneumatic unit 150: warning light

The present invention relates to a fuel return hose assembly unit equipped with a function block, and more particularly, the assembly of the fuel return hose to the port of the function block is connected to the fuel pump and the common rail at the same time as the automated operation. By detecting whether the assembly of the clip that clamps the hose is detected by the sensor, it is possible to reduce the defective rate of the product to obtain a high quality product, and also to perform the performance test on the product together with the fuel return hose. And a fuel return hose assembly unit equipped with a function block for achieving efficiency of the overall process related to the assembly of the function block.

In general, the fuel pumped from the fuel tank in the fuel system of the vehicle is filtered in the filter, the pressure is adjusted in the pressure regulator, then sent to the injector is injected, the excess fuel is returned to the fuel tank through the fuel return hose.

The means for fuel return can be divided into hose type and pipe type.In case of the specification connected to each injector, the hose is applied a lot, and in the case of the specification using the delivery pipe, Mostly applicable.

In recent years, a lot of fuel return means of hoses having excellent effects in response have been applied.

Existing fuel return hoses are connected to each injector in a one-to-one speed, joined together, and then mounted to extend to the fuel tank side.

The fuel return hose is composed of a plurality of connectors fastened to the injector side, a hose connecting each connector, a check valve for preventing backflow of the fuel, and the like.

The assembly work of the existing fuel return hose has been performed by manually inserting the hose into the connector of the connector and then crimping the insertion part with a separate connection member. This was inconvenient and time-consuming, and inefficient in terms of workability and productivity.

In addition, due to the adoption and manual labor of the connection member, it is difficult to ensure the airtightness of the connector and the connection portion of the hose, there was a problem that the defective rate for the product is high.

In order to solve this problem, the applicant has invented a fuel return hose assembly filed on August 29, 2003 (2003-60348).

The fuel return hose assembling machine eliminates the existing manual concept when assembling the fuel return hose and introduces the automation concept to achieve a drastic improvement in terms of workability and productivity, and reduce the defective rate of the product to obtain a high quality product. In addition, it is possible to improve the overall process related to the assembly of the fuel return hose by allowing the performance test of the product together.

On the other hand, a function block is installed to join the fuel flowing from the fuel return hose and return to the fuel tank side.

The function block has four ports arranged in an approximate " 4 " shape so that the function block can be connected to the fuel pump and the common rail through a connection hose, and is connected to the fuel return hose, the fuel pump and the common rail connection hose.

At this time, the connection hose is crimped and fixed to the port of the function block with a clip, a connector for connecting the hose and the hose is inserted in the middle of the connection hose of the fuel pump, the connector and the hose is also fixed by the clip.

However, the applicant previously filed fuel return hose assembly unit is to assemble only the fuel return hose to which the injector is mounted, the situation that the process of assembling the function block and the return hose is carried out separately.

The assembly work of the fuel return hose and the function block is performed by manual operation of inserting the hose into the port, which is the connection part, and then crimping the insertion part with a separate connection member. In terms of inefficiency.

In addition, it is difficult to secure the airtightness at the connection portion between the port and the hose due to the adoption and manual labor of the connection member has a high defect rate for the product.

In addition, since the clip that is manually fastened to the connection hose must be fixed in several places, there is a problem that frequently skips and does not fix the clip in the middle.

The present invention has been made in view of the above, and the clip for fastening and fastening the connection hose connected to the fuel pump and the common rail at the same time as automated assembling the fuel return hose to the port of the function block rather than manual work By detecting the assembly status of the sensor by knowing the sensor, it is possible to reduce the defective rate of the product to obtain a high quality product, and also to perform the performance test of the product together with the assembly of the fuel return hose and function block It is an object of the present invention to provide a fuel return hose assembly unit equipped with a function block for improving the overall process efficiency.

In order to achieve the above object, the present invention includes a plurality of connector jig and hose jig arranged in parallel in a row and in a fuel return hose assembly,

A function block for connecting the fuel introduced through the return hose, the fuel introduced from the common rail and the fuel introduced from the fuel pump to the fuel tank; A function block jig disposed adjacent to a hose jig positioned at one end of the hose jig on a table of the frame and on which the function block is seated; A clamping function block jig and a clamping cylinder disposed on the function block jig to hold a function block when assembling a connector, a hose, and a function block; And a control panel for controlling the operating element and providing air pressure.

In a preferred embodiment, the function block is that the tube is arranged in the form of an approximate "4" is connected to the return hose, common rail connection hose, fuel pump connection hose and fuel tank connection hose, the coupling is provided in the center It features.

In a more preferred embodiment, the function block jig is characterized in that the fixing pin is protruded to be inserted into the coupling hole of the function block.

In addition, the clamping function block jig is movable in the vertical direction along the guide shaft, characterized in that the clamping projection for pressing the coupler on the bottom is formed.

In addition, the common rail connection hose and the fuel pump connection hose is fastened to the function block by a clip, the function block jig is characterized in that the sensor for checking the presence of the clip is mounted.

The apparatus may further include first and second connection hose jigs arranged adjacent to the function block jig and holding the common rail connection hose and the fuel pump connection hose.

In addition, the second connection hose jig is characterized in that the sensor is mounted to confirm the presence or absence of the clip mounted on the fuel pump connection hose.

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

The present invention relates to a hose assembly for automatically connecting the fuel return hose (10) and the function block (11).

The present invention, unlike the conventional assembly only limited to the assembly of the fuel return hose 10, so that the function block 11 for connecting the fuel flowing from the common rail and the fuel pump to the fuel tank side to be assembled with the return hose (10). At one point is the point.

As shown in Figures 1 to 3, the control panel 120 for controlling the operating elements such as all cylinders are arranged on the upper part of the frame 100, the middle of the composition to the working space where the actual hose connection work is performed In the lower portion, an air tank / valve 130 that is connected to the pneumatic unit 140 side for generating air pressure provided to a cylinder or the like is disposed.

In addition, a lamp is installed above the control panel 120, and a pneumatic unit 140 connected to each cylinder side for distributing air pressure according to predetermined control is installed on the left side when viewed from the front view. On the right side, safety sensors and warning lights 150 for safety during work are installed.

In addition, the frame 100 is installed with a test unit for checking the pressure in the hose and the state of the check valve and the like through the operation of air injection, etc. to perform a leak test of the product.

The test unit is a part for performing various inspections with a digital pressure gauge and a pressure sensor by supplying air to the assembled product, and includes a digital pressure gauge, a pressure sensor, a booster valve, etc. in addition to the above test cylinder, and a leak test, Perform valve reverse check, check valve open check, etc.

Since the configuration and operating state for assembling the fuel return hose 10 are the same as the contents of the specification of the present applicant (Patent Application No. 2003-60348), the following description will be given with respect to the configuration added in the present invention, The contents will be omitted.

The present invention provides a function block for connecting the fuel introduced through the return hose 10 and the fuel introduced from the common rail and the fuel introduced from the fuel pump to the fuel tank.

In addition, the present invention provides a hose assembly for assembling the return hose 10 and the function block 11 at the same time.

The function block 11 is formed in a tube-shaped tubular body is arranged integrally with the "4" shape, two coupling holes (11a) are formed in the center in the vertical direction, the fixing hole is formed inside the coupling hole have.

The return block 10 is connected to the function block 11 to the left when viewed from the front view, and the common rail connection hose 12 and the fuel pump connection hose 13 are connected to the right side, and the connection hoses 12 and 13 are connected. ) Is pressed against the function block 11 by the clip 14a.

In addition, the fuel pump connection hose 13 is connected by inserting a straight connector between the two general hose, it is fixed to the straight connector by the clip (14b). At this time, the common rail and fuel pump connecting hoses 12 and 13 are assembled to the function block 11 by manual operation.

The hose assembly is a configuration for assembling the fuel return hose (10), that is, at least four connector jig 17 and hose jig 18, the axis for setting the connector 15 and the hose 16, axis Direction jig plate 19, guide shaft and insert cylinder 20, clamping connector jig 21 for holding connector 15 and hose 16 and clamping hose jig 22, each clamping Both cylinders 23a and 23b are included.

Here, the function block jig 24 is installed on the table 110 of the frame 100 at an adjacent position of the hose jig 18 disposed on the rightmost side of the hose jig 18 when viewed in a front view. The fixing pin 24a inserted into the upper surface of the jig 24 through the fixing hole of the coupling hole 11a formed in the function block 11 is integrally formed.

The function block 11 seated on the function block jig 24 may be fixed by the clamping function block jig 25 pressed from the top, and the function block jig 24 is fastened on the table 110. To be fixed by means.

On the bottom of the clamping function block jig 25, a clamping protrusion 25 for pressing the coupling hole 11a of the function block 11 is formed to protrude downward, and a guide shaft (25) is provided on the clamping function block jig 25. The lower end of 26 is coupled in the vertical direction.

The clamping function block jig 25 is moved up and down along the guide shaft, and a clamping cylinder 23c is installed at a position adjacent to the guide shaft 26 so that the function block jig 25 for clamping is vertically moved. It allows you to move accurately.

The clamping cylinder 23c is installed with the rod downward on the cylinder support bracket 32, which is erected at a constant height on the function block jig 24, and each rod for pressing the upper side of the function block 11 on the rod. The clamping function block jig 25 is mounted.

The function block jig 24 is provided with one sensor 27a per clip to check whether the clip, which is the fastening means of the connection hoses 12 and 13, is assembled. If the clip 14a is not attached to the connection hoses 12 and 13, the control panel 120 sends an operation signal to the warning light 150 by receiving the detection signal of the sensor 27a that detects the clip 14a.

In the position adjacent to the function block jig 24, first and second connecting hose jigs 28 and 29 for holding the common rail and fuel pump connecting hoses 12 and 13 are installed on the table 110. The first connecting hose jig 28 is formed with two grooves that can hold the short common rail connecting hose 12 bent in an approximate " a " shape in the vertical direction, and the first connecting hose jig 28 ) Is provided with a second connecting hose jig 29 that can hold a long length of the fuel pump connecting hose at regular intervals.

The second connecting hose jig 29 is equipped with a sensor 27b for checking the presence or absence of the clip 14b attached to the joint of the fuel pump connecting hose 13, as described above is not attached to the clip In this case, the warning light 150 is activated.

At the ends of the connection hoses 12 and 13, air hoses and cylinders are mounted for airtightness and leakage inspection.

Referring to the state of use of the fuel return hose assembly equipped with a function block according to the present invention by such a configuration as follows.

5a to 5d is a partial front view showing the operation of the fuel return hose assembly equipped with a function block according to the present invention.

First, the common rail connecting hose 12 and the fuel pump connecting hose 13 are manually connected to the function block 11, and then to the function block jig 24 and the first and second connecting hose jigs 28 and 29. The function blocks 11 and the connection hoses 12 and 13 are respectively seated.

At this time, the coupling holes 11a of the function block 11 are fixed to the fixing pins 24a formed on the function block jig 24, and the connection hoses 12 and 13 are connected to the first and second connection hose jig 28. , 29).

Subsequently, the hose 16 and the connector jig 17 are loaded into the hose jig 18 and the connector jig 17, respectively, and the operation of the equipment is started by "on" the switch at the front of the machine.

Next, the insert cylinder 20 retracts and pulls all the jig plates 30 in sequence to the function block jig 24, starting with the initial jig plate 30, thereby connecting the connector jig 17 on each jig plate 30 with each other. Connector 15, hose 16, check valve 31 in the hose jig 18 may be integrally assembled to the function block (11).

After coupling the connector 15, the hose 16, the check valve 31 and the function block 11 in this way, the clamping connector jig 21 is lowered to the connector jig 17 to clamp the connector 15. Close the connection with the upper injector.

After a few seconds have elapsed, the test cylinder of the test unit is advanced to apply a predetermined pressure, and the hose connection portion, the connection portion of the hose 10 and the function block 11, and the function block 11 and the connection hose 12, 13) Leakage test for connecting part and connecting hose (13) connection part, check valve reverse tightness test, connector / check valve opening test in order.

After completing all inspections, the test cylinders and clamping cylinders 23a, 23b, 23c are reversed and the product is unloaded.

The fuel return hose 10 and the function block 11 assembled as described above are shown in FIG. 6.

As described above, according to the present invention, by providing an automated equipment that can automatically perform the assembly of the fuel return hose and the function block, there is an advantage to increase the first workability and single productivity, and the second product There is an advantage that the quality of the product can be improved by lowering the defective rate. Third, the assembly and performance test of the product can be performed at the same time, so that the overall assembly process of the fuel return hose and the function block can be efficiently performed.

Claims (7)

In the fuel return hose assembly comprising a plurality of connector jig (17) and hose jig (18) arranged in series in parallel, A function block 11 for connecting the fuel introduced through the return hose 10 and the fuel introduced from the common rail and the fuel introduced from the fuel pump to the fuel tank; A function block jig 24 disposed adjacent to a hose jig positioned at one end of the hose jig 18 on the table 110 of the frame 100 and on which the function block is seated; A clamping function block jig 25 and a clamping cylinder 23c disposed on the function block jig to hold the function block when assembling the connector 15, the hose 16, and the function block 11; A control panel 120 for controlling the clamping cylinder 23c and providing air pressure; Fuel return hose assembly, characterized in that it comprises a function block. The method according to claim 1, The function block 11 has a tube arranged in an approximate " 4 " shape and connected to the return hose 10, the common rail connection hose 12, the fuel pump connection hose 13 and the fuel tank connection hose. Fuel return hose assembly, characterized in that the coupling sphere (11a) is provided. The method according to claim 2, The function block jig 24 is a fuel return hose assembly, characterized in that the fixing pin (24a) is formed to protrude so as to be inserted into the coupling hole (11a) of the function block (11). The method according to claim 2, The function block jig 25 for clamping is movable in the vertical direction along the guide shaft 26, and the function block is mounted on the bottom formed with a clamping projection (25a) for pressing the coupler (11a) Fuel return hose assembly machine. The method according to claim 2, The common rail connecting hose 12 and the fuel pump connecting hose 13 are fastened to the function block 11 by clips 14a and 14b, and the function block jig 24 has a sensor for checking whether the clip is present. A fuel return hose assembly device with a function block, characterized in that (27a) is mounted. The method according to claim 1, It is characterized in that it further comprises a first and second connecting hose jig (28,29) which is disposed adjacent to the function block jig 24 and holding the common rail connection hose 12 and the fuel pump connection hose (13). Fuel return hose assembly machine with function block. The fuel return with a function block according to claim 6, wherein the second connection hose jig 29 is equipped with a sensor 27b for checking whether a clip is mounted on the fuel pump connection hose 13 or not. Hose assembler.

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