KR102256997B1 - Universal jig for repairing of fuel injector of a car - Google Patents

Abstract

The present invention relates to a jig used to firmly fix a fuel injector for repair of a fuel injector separated from the engine of various vehicles, and more particularly, to a vertical direction on the edge of a hanger plate supported by a pedestal having a predetermined height. A setting groove cut in the shape of a "c" is formed so that the fuel injector body in an erect state can be inserted, and the body part of the fuel injector is firmly fixed on the setting groove at the side of the setting groove and the opening inlet. Installable slide-type clamping means and bolt-type clamping means, respectively, but the inlet clamping means is connected to the hanger plate so that angular movement is possible with the link bar interposed therebetween, so that the fuel injector can be inserted through the setting groove. In order not to cause any obstacles, the slide-type clamping means and the bolt-type clamping means are used in combination, regardless of the kind of fuel injector manufactured to have various body dimensions and external shapes by vehicle model or manufacturer. It allows the injector to be fixed very easily and firmly on the setting groove of the hanger plate, and through this, pre-clamping of various fuel injectors necessary to perform the required repair work by separating the head, needle, or body of the fuel injector. It relates to a universal jig for repairing a fuel injector for a vehicle, which enables the work to be performed collectively and universally with only one jig.

Description

Universal jig for repairing of fuel injector of a car

The present invention is to further separate the head, needle, or body from the fuel injector that was first separated from the engine of the vehicle, so that the fuel injector is vertically erected to perform the required repair work. It relates to a jig for a fuel injector that allows the part to be firmly clamped.

In general, a fuel injector used to inject fuel into a cylinder of an engine installed in a vehicle includes an injector body having a rod shape, an injector head assembled and installed on the top of the injector body, and assembled and installed at the bottom of the injector body. Consisting of including injector needles, the injector head is connected to a fuel supply pipe extending from a fuel tank of the vehicle through a fuel pump, and the injectors are inserted and installed into the combustion chamber of the cylinder through the engine head, and the injector Inside the body, a flow control valve and the like are built in to control the amount of fuel supplied and injected from the injector head to the injector needle.

When the above fuel injector is installed in a vehicle and used for a long period of time, some of the combustion gas or fine carbon dust generated in the combustion chamber of the engine and fine dust flowing into the engine compartment during the operation of the vehicle penetrate and accumulate inside the fuel injector. In this process, the fuel injector is separated from the engine of the vehicle in the event that the fuel injector fails to perform its function due to the accumulation and fixation of the corresponding foreign material to the precise control parts such as the flow control valve embedded in the injector body. Appropriate repair work will be performed.

To repair the fuel injector separated from the engine of the vehicle as described above, hold the injector body vertically upright and firmly clamp the body part on the jig, and then separate the injector head or injector needle part from the injector body. Since the work of separating the body of the injector body must be preceded, the conventional fuel injector jig has a mounting groove that allows the body of the fuel injector to be assembled along the edge of the jig body made in the shape of a square block. However, various types of mounting grooves were used according to the type of fuel injector having various body dimensions and appearances for each vehicle model or manufacturer.

However, the conventional fuel injector jig as described above is divided into a number of individual mounting grooves at regular intervals across the edge of the jig body, which is a long time in the repair work of the fuel injector. There was a problem in that it was difficult to find a mounting groove suitable for the type of fuel injector to be repaired immediately if you are not an expert or skilled person who has been engaged during the period. There was a problem that required a cumbersome process of finding the appropriate mounting groove while looking at each one.

In particular, the conventional jig for fuel injector did not provide an additional clamping means for inserting the fuel injector requiring repair into the corresponding mounting groove and then firmly fixing it on the mounting groove, and thus the fuel injector is mounted. In a very unstable state that is inserted only in the groove, the fuel injector is frequently separated from the mounting groove as the injector head, injector needle or injector body part is bitten with a tool such as a monkey and removed. In addition to the unnecessary additional damage to the injector, there is a problem that it is highly likely to cause injury to the operator's hand or arm.

In addition, the conventional jig for fuel injector has a problem that excessive time and cost are required for manufacturing the jig body as each mounting groove must be cut very precisely according to the body size and appearance shape of the injector body. , As the number of mounting grooves that can be formed in one jig body is limited to about 5 to 6, it is economical burden to users by manufacturing a large number of expensive jig bodies in order to repair more types of fuel injectors. There was a problem of weighting, and forming 10 or more mounting grooves on one jig body has an undesirable problem in terms of practical use when considering the weight and volume of the jig body.

The present invention has been conceived to solve the conventional problems as described above, and has a "c" shape so that a fuel injector body part in a vertical direction can be inserted on the edge of a hanger plate supported by a pedestal having a predetermined height. A slide-type clamping means and a bolt-type clamping means are respectively installed to form a setting groove cut into the setting groove, and to securely fix the body part of the fuel injector on the setting groove at the side of the setting groove and the opened inlet side, the The inlet clamping means is connected to the hanger plate so that angular movement is possible with the link bar interposed so that it does not interfere with the insertion of the fuel injector through the setting groove. The slide-type clamping means and the bolt-type clamping means are used together without being restricted by the type of fuel injector manufactured to have various types of fuel injectors so that they can be easily and firmly fixed on the setting groove of the hanger plate. Its main technical task is to provide a universal jig for vehicle fuel injectors.

In addition, in the present invention, an auxiliary setting groove in the shape of a "⊃" is cut and formed on the edge of the hanger plate corresponding to the opposite side of the setting groove, and the hinge on the hanger plate around the opened inlet of the auxiliary setting groove While installing the shaft, by connecting the pressure link stand with the clamping bolt to the rear end of the hinge shaft, it is a special type of fuel injector used in large diesel vehicles such as trucks, and the fuel injection pipe is connected to the outer surface of the injector body. "It allows the injector in the shape of a shape to be firmly clamped together with the fuel injection pipe part, and through this, the head part, the needle part, or the body part of the fuel injector is separated and the various fuel injectors required to proceed with the required repair work. Vehicle fuel, such as enabling pre-clamping work to be performed collectively and universally with only one jig, while securing a wider range of applications from fuel injectors for general vehicles to special injectors for large diesel vehicles. Another technical challenge is to provide a universal jig optimized for injector repair work.

As a means for solving the above technical problem, the universal jig according to the present invention includes a hanger plate manufactured in the form of a square plate, and a rod-shaped support having a predetermined height connected to the hanger plate so as to support the hanger plate from the bottom. , By fixing the injector body part of the fuel injector inserted in an upright state along the setting groove and a setting groove formed in a "c" shape from the edge of one side of the hanger plate toward the inside of the hanger plate. It is made by including a clamping means provided respectively to the side portion of the setting groove and the opening inlet side of the setting groove so that it can be placed, the side clamping means is cut in a downward direction by a predetermined depth from the top surface of the hanger plate A straight guide groove formed to connect with the side portion, a rod-shaped slide clamper inserted into the guide groove to enable movement in the front and rear directions along the guide groove, and a hanger plate corresponding to the rear side of the guide groove And a clamping bolt that is connected and installed on the rear end of the slide clamper so as to enable axial rotation after passing through the edge of the slide clamper, and the inlet clamping means is a hanger corresponding to the periphery of the opened inlet of the setting groove. The link bar is installed on the edge of the plate so that one end is connected to enable angular movement in a link type, and the other end of the link bar placed on the front side of the entrance of the setting groove according to the angular movement of the link bar is screwed through Each clamping bolt comprising a clamping bolt and constituting the side clamping means and the inlet clamping means is characterized in that a clamping knob for a handle is provided at one end of the rod bolt.

In addition, the universal jig according to the present invention has an auxiliary setting groove cut in the form of "⊃" from the edge of the hanger plate toward the inside of the hanger plate on the other side of the hanger plate corresponding to the opposite side of the setting groove. And the fuel injector inserted into the auxiliary setting groove becomes a "ㅏ"-shaped injector connected with a fuel injection pipe on the outer surface of the injector body, and a hanger plate corresponding to the periphery of the opened inlet of the auxiliary setting groove At the edge of the hinge shaft of a predetermined length is assembled and installed in the horizontal direction, while at the rear end of the hinge shaft, a pressure link stand in close contact with the front end side of the fuel injection pipe of the fuel injector inserted into the auxiliary setting groove is connected and installed together with the clamping bolts. , In the case of the clamping bolt, a clamping knob for a handle is provided at one end of the rod bolt, a through hole through which the rod bolt of the clamping bolt passes is formed at one end of the pressure link bar, and a clamping bolt is provided at the rear end of the hinge shaft. It is characterized in that a fastening hole through which the rod bolt is screwed to a predetermined depth is formed.

According to the present invention as described above, the setting groove and the slide clamper at the side thereof and the clamping bolt at the inlet side are hardly restricted by the type of fuel injector manufactured to have various body dimensions and external shapes for each vehicle model or manufacturer. It provides the effect of fixing various types of fuel injectors on the setting groove of the hanger plate very easily and firmly. Through this, the required repair work is performed by separating the head, needle, or body part of the fuel injector. It provides the effect that the pre-clamping work of various fuel injectors required to proceed can be performed collectively and universally with just one jig.

In particular, by using the slide clamper and the clamping bolt together to fix the fuel injector on the setting groove very firmly and stably, it fuels the separating operation in which the injector head, injector needle, or injector body part is bitten with a tool such as a monkey and removed strongly It provides an effect that can be performed quickly and safely without the injector's separation, and unlike the conventional jig in which several mounting grooves are formed by precise mechanical cutting in accordance with the body dimensions and external shape of the injector body, fuels of various body dimensions There is an effect of providing a more rational and economical jig product through structural improvement of arranging two clampers around one setting groove whose incision is widened so that the injector is inserted.

In addition, as a special injector used in heavy-duty diesel vehicles such as trucks, the injector body of the fuel injector having a "ㅏ" shape can be mounted and clamped together with the fuel injection pipe, corresponding to the opposite side of the setting groove. When auxiliary setting grooves, hinge shafts, pressure link bars, and clamping bolts are additionally installed on the edge of the hanger plate, the scope of application of the fuel injector that can be mounted on the jig of the present invention and repair work is possible for general vehicles. It has a very useful effect, such as providing an effect that can be secured more widely from to for a special vehicle, and ultimately providing a universal jig optimized for the repair work of a vehicle fuel injector.

1 is an exploded perspective view showing a universal jig for repairing a vehicle fuel injector according to the present invention.
Figure 2 is a perspective view of the bottom side of Figure 1;
Figure 3 is an exterior perspective view of the combined state of Figure 1;
Figure 4 is a plan view of Figure 3;
5 to 7 are diagrams illustrating a state of use of a universal jig according to the present invention.

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

The universal jig for repairing the fuel injector for a vehicle according to the present invention supports a hanger plate 1 manufactured in the form of a square plate and the hanger plate 1 from the bottom as shown throughout FIGS. 1 to 4. A rod-shaped pedestal 5 of a predetermined height connected to the hanger plate 1 so as to be installed, and "c" from the edge of one side (right side in Fig. 1) of the hanger plate 1 to the inside of the hanger plate 1 The setting groove 2 is cut into a ruler shape, and the side part of the setting groove 2 so that the body of the fuel injector inserted into the setting groove 2 can be fixed on the setting groove 2 and placed therein. It consists of including clamping means provided respectively to the opening inlet side of the setting groove (2).

The hanger plate (1) is a mounting base necessary for inserting and fixing the body of the injector body into the setting groove (2) with the fuel injector separated from the vehicle's engine upright in a vertical direction. It is provided, and if it is capable of performing these functions, it can be manufactured in a variety of other forms such as a disk or a polygonal plate in addition to the square plate shape shown in the drawing, and is sufficient for the clamping operation of the fuel injector and the separation operation. It is preferable to use a corrosion-resistant metal plate of an appropriate thickness so as to have a supporting strength.

In addition, in consideration of the fact that the fuel injector is inserted and fixed into the setting groove 2 of the hanger plate 1 while the fuel injector is upright in a vertical direction, the pedestal 5 has a predetermined height so as not to interfere with the operation. After making the branch with a metal rod-shaped support (5), it is possible to assemble and install the hanger plate (1) detachably according to the spaced position (corner side of the hanger plate in the drawing) with an appropriate distance from the setting groove (2). It is preferable that the pedestal 5 itself is prefabricated and fixed to a position such as a working table or a shelf for separating and repairing the fuel injector.

In the accompanying drawings, a pedestal 5 provided with a disc-shaped support plate 7 at the bottom of the circular bar-shaped support plate 6 is shown as a representative example, and the upper side of the support plate 6 is an assembly bolt 8 ) Is connected to the hanger plate 1, and the support plate 7 will be fixedly installed on a working table or shelf by bolts (not shown), etc., and a hanger plate 1 on the upper side of the support plate 6 An assembly head (6a) is provided, and a head receiving portion (1a) into which the assembly head (6a) of the support stand (6) is inserted is formed in a concave at the bottom of the hanger plate (1), and the assembly head (6a) and the head receiving portion (1a) are formed with a fastening hole (8a) and a through hole (8b) of the assembly bolt (8), respectively, and the assembly hole (7a) of a table or a shelf, etc. at the edge of the base plate (7) ) Are formed at regular intervals.

In addition, the setting groove (2) is to be able to insert various fuel injectors used in diesel engines or gasoline engines of general vehicles such as private cars, regardless of their type, and in the case of fuel injectors used in general vehicles, the engine For convenience of separating the fuel injector from the injector head 21 and the injector body 22, as shown in FIG. 5, there is a square rod-shaped body stepped inward at the portion connecting the injector head 21 and the injector body 22, so that the body portion is used. Thus, the setting groove 2 is formed to have a cut width larger than the size (thickness) of the body portion to enable insertion and clamping of the various fuel injectors 20.

In other words, by grasping the dimensions of the square rod-shaped body provided to the fuel injector 20 for a general vehicle, the setting groove 2 is formed with a cutout width that allows the various types of fuel injectors 20 to be inserted without distinction, and then, The final fixing work of the fuel injector 20 is to be performed by the side clamping means and the inlet clamping means, and inserting the square rod-shaped body provided to the fuel injector 20 into the setting groove (2). In order not to cause interference by the injector head 21 having various dimensions and appearances in the middle, a circular groove having a larger diameter than the setting groove 2 is additionally formed on the bottom side of the setting groove 2 as shown in FIG. 2. have.

The side clamping means for first fixing the body portion of the fuel injector 20 inserted into the setting groove 2 of the hanger plate 1 on the setting groove 2 as described above is the upper end of the hanger plate 1 A straight guide groove 4 that is cut downward by a predetermined depth from the surface to connect with the side surface of the setting groove 2, and a guide groove to enable movement in the front and rear directions along the guide groove 4 (4) A rod-shaped slide clamper (9) that is inserted into the inside of the guide groove (4) and the edge portion of the hanger plate (1) corresponding to the rear side of the guide groove (4) is screwed through, and then, It consists of including a clamping bolt 12 is installed to be axially rotatably connected to the rear end of the slide clamper (9).

In the drawing, the guide groove 4 has a rectangular channel shape having a predetermined width, depth, and length, and is formed on the upper surface of the hanger plate 1 so as to be connected to the side surface of the setting groove 2. For this reason, only a circular groove appears in the portion connected to the guide groove 4 among the circular grooves formed on the bottom surface of the setting groove 2 in FIG. 2, and the slide clamper 9 fits the dimensions of the guide groove 4 It is made of a rectangular rod-shaped clamper of a predetermined length that can be inserted into the slide clamper 9, and a close contact end portion 9c with the fuel injector 20 is protruded on the upper end of the front end surface of the slide clamper 9.

In addition, the clamping bolt 12 is a rod bolt 14 that passes through the edge portion of the hanger plate 1 corresponding to the rear side of the guide groove 4 in a threaded manner, and the line of the rod bolt 14 An insertion end (12a) protruding from the center of the cross section and inserted through the rear end of the slide clamper (9), and a clamping knob for a handle formed integrally with the rod bolt (14) at the rear end of the rod bolt (14) It is composed of (13), the guide pin (9a) that is fitted vertically downward from the upper surface of the rear side of the slide clamper (9) is a pin groove (12b) formed on the outer peripheral surface of the insertion end (12a) at the front end of the clamping bolt (12) ), the clamping bolt 12 connected to the rear side of the slide clamper 9 is not separated from the slide clamper 9 by a screw-type shaft rotation.

In addition, in order to perform more delicate and stable operation of moving the slide clamper 9 in the forward and backward directions on the guide groove 4 according to the screw-type shaft rotation of the clamping bolt 12, the slide clamper ( In the front part of the body of 9), a guide hole 11 in the form of a long hole having a predetermined length is formed through the body in a horizontal direction, and corresponds to the tip side of the guide groove 4. A guide rod 17 inserted through the guide hole 11 of the slide clamper 9 is installed on the body of the hanger plate 1, and the guide rod 17 spans both ends of the guide groove 4 It is fitted in a manner that crosses the guide groove 4 in the horizontal direction along the rod hole 17a provided on the hanger plate 1.

As described above, the guide groove 4 and the slide clamper 9 constituting the side clamping means may be formed of channels and rods of various shapes such as a semicircular cross-section or trapezoidal cross-section, in addition to a rectangular shape, and the width of the guide groove 4 Is about 1/10 to 1/5 of the length of one side of the hanger plate (1) on which the rear end of the guide groove (4) is placed, and the depth of the guide groove (4) is equal to the thickness of the hanger plate (1). By making it about 1/2 to 2/3, the support function and clamping function of the slide clamper 9 inserted into the guide groove 4 and the clearance space for additional provision of the auxiliary setting groove 3 to be described later It is desirable to secure enough.

However, it is also possible to form the guide groove 4 with a dimension larger or smaller than the above dimensional range, and the position and length of the guide groove 4 can be variously adjusted according to the position of the setting groove 2 In addition, the connection method between the slide clamper 9 and the clamping bolt 12 can also be applied to various other rotary joints in place of the guide pin 9a and the pin groove 12b described above, and the slide clamper The guide structure of (9) can also be applied in place of the guide hole (11) and guide rod (17), such as a concave-convex guide rail, and the guide groove (4) itself is a guide function of the slide clamper (9). Since it can be performed sufficiently, in some cases, the guide structure of the slide clamper 9 may not be separately applied.

The inlet-side clamping means used to finally fix the body portion of the fuel injector 20 inserted into the setting groove 2 together with the sliding clamping means on the side of the setting groove 2 as described above is, the setting groove 2 ), one end is installed on the edge of the hanger plate (1) corresponding to the opened inlet of the link stand (15), which is connected to each other in a link type, and is set according to the angular movement of the link stand (15). A clamping bolt (12) comprising a clamping bolt (12) installed to pass through the other end portion of the link stand (15) placed on the inlet front side of the groove (2) in a threaded manner, and forming the inlet-side clamping means Even in the case of, a clamping knob 13 for a handle is provided at one end of the rod bolt 14.

In the drawing, the link bar 15 is a hanger plate with the link shaft 16 interposed on the edge of the hanger plate 1 corresponding to the periphery of the setting groove 2 (left side in FIGS. 1 and 3). (1) is connected and installed, and the link shaft (16) is fixed on the hanger plate (1) by an assembly bolt (8) assembled and installed with a fastening hole (8a) formed at the corresponding position of the hanger plate (1). It is installed, and one end (left end in FIGS. 1 and 3) of the link bar 15 has a long hole 16a through which the link shaft 16 passes, and the shaft hole 16a The link bar 15 is not separated from the outside by the head portion of the link shaft 16 that is caught on the front surface, and the clamping bolt 12 is attached to the other end of the link bar 15 (the right end in FIGS. 1 and 3). ) Of the rod bolt 14 is formed with a fastening hole (14a) through which the screw type.

When the clamping operation of the fuel injector 20 is not performed by applying the link bar 15 of the above method, the link bar 15 is clamped as shown by an imaginary line in FIG. 6. 12) is suspended from the link shaft 16 together with the clamping bolt 12 by its own weight, in other words, the clamping bolt 12 is tilted outwardly below the entrance of the setting groove 2, so that the fuel injector ( It does not interfere with the operation of inserting the body part of 20) into the setting groove (2), and the primary clamping by the slide clamper (9) by inserting the body part of the fuel injector (20) into the setting groove (2) After this is performed, the rod bolt 14 of the clamping bolt 12 can be placed on the opened inlet side of the setting groove 2 by angular movement of the link bar 15 together with the clamping bolt 12 in the upper direction. It can be.

As an additional matter, on the edge of the other side of the hanger plate (1) opposite the setting groove (2), an auxiliary mounting groove (3) for mounting and clamping a special injector used in large diesel vehicles such as trucks, and Each clamping means is provided, and as a representative example of the special injector used in the large-sized diesel vehicle, the Hyundai Mighty 2.5 ton class or 5 ton class mega truck Denso (Japanese automobile) produced by Hyundai Motors. Parts company name) injectors, and 3 to 4 similar special injectors including the Denso injectors are installed and used in domestic vehicles.

The fuel injector of the same type as the Denso injector is different from the general vehicle fuel injector 20 provided with a fuel injection pipe on the injector head 21 for connection with a fuel supply pipe extending from a vehicle fuel tank through a fuel pump. The fuel injection pipe is connected and installed to form a 90 degree angle with the injector body on the outer surface of the injector body, that is, has a shape of a roughly "ㅏ" shape, while a square rod type like the fuel injector 20 for a general vehicle described above. Since the body portion is not provided on the injector body 22, the auxiliary setting groove (3) suitable for firmly fixing the cylindrical rod-shaped injector body on the hanger plate (1) together with the fuel injection pipe according to these characteristics, and It is equipped with clamping means.

The auxiliary setting groove 3 allows the cylindrical rod-shaped injector body portion of the fuel injector to be inserted, while the fuel injection pipe of the injector body protrudes to the outside of the hanger plate 1 by a predetermined length. It is cut in the shape of a "⊃" shape from the edge side of the plate 1 toward the inside of the hanger plate 1, and around the opened inlet of the auxiliary setting groove 3 as the clamping means (in FIGS. 1 and 3 On the edge of the hanger plate 1 corresponding to the right side), a hinge shaft 18 having a predetermined length is assembled and installed in a horizontal direction, and the rear end of the hinge shaft 18 is the outer side of the hanger plate 1 The pressure link bar 19 is connected together with the clamping bolt 12 so that the fuel injection pipe protruding to can be clamped together with the injector body of the auxiliary setting groove 3.

In the drawing, an assembly mounting bolt (18a) is protruding from the center of the front end surface of the hinge shaft (18), and on the edge of the hanger plate (1) corresponding to the assembly position of the hinge shaft (18), a hinge shaft ( A mounting hole 18b to which the mounting bolt 18a of 18) is fastened is formed, and a through hole 14b through which the rod bolt 14 of the clamping bolt 12 passes at one end of the pressure link bar 19 ) Is formed, and at the rear end of the hinge shaft 18, there is formed a fastening hole 14a through which the rod bolt 14 of the clamping bolt 12 is screwed to a predetermined depth, and if necessary The hinge shaft 18 may be fixed to the edge of the hanger plate 1 by welding.

Therefore, the pressure link bar 19 is also angular movement on the rod bolt 14 of the corresponding clamping bolt 12 so as not to cause a hindrance in mounting the injector body portion of the fuel injector along the auxiliary setting groove 3. It will be in a suspended state so as to be possible, and the work of firmly fixing the injector body part inserted into the auxiliary setting groove 3 using the pressure link bar 19 together with the fuel injection pipe, together with the pressure link bar 19 By fastening the clamping bolt 12 assembled at the rear end of the hinge shaft 18 in the direction of the hinge shaft 18, the pressure link bar 19 is injected with fuel by the clamping knob 13 of the clamping bolt 12. It will be done in a way that makes it in close contact with the tip of the tube.

As described above, the process of fixing the fuel injector 20 with the universal jig 10 of the present invention is separately shown in FIGS. 5 to 7 as described above, and the fuel injector 20 for a general vehicle through the setting groove 2 5, the fuel injector 20 is moved to the front side by rotating the clamping bolt 12 connected to the slide clamper 9 as shown in FIG. The first clamping is performed on the setting groove 2 by means of the first clamping, and then the link bar 15 in a state in which the link bar 15 is angular motion toward the entrance side of the setting groove 2 as shown in FIGS. 6 and 7. As the clamping bolt 12 installed in the shaft rotates, the fuel injector 20 is finally clamped by moving the rod bolt 14 of the clamping bolt 12 toward the fuel injector 20 and in close contact.

On the other hand, as shown in FIG. 7, through the auxiliary setting groove 3, the injector body 22 of the fuel injector 20 for a large diesel vehicle is mounted, but the fuel injection pipe 24 connected to the injector body 22 ) In a state that protrudes outward by a predetermined length through the opened inlet of the auxiliary setting groove 3, so that the pressure link bar 19 is placed in a horizontal position facing the inlet of the auxiliary setting groove 3 Then, by rotating the clamping bolt 12 connected to the hinge shaft 18, the rod bolt 14 is screwed in along the fastening hole 14a of the hinge shaft 18, and the corresponding clamping bolt ( The clamping operation of the method of strongly bringing the pressure link bar 19 into close contact with the front end surface of the fuel injection pipe 24 is performed by the clamping knob 13 of 12), and for this purpose, the length of the hinge shaft 18 Is a length shorter than the length of the fuel injection pipe 24 protruding to the outside of the hanger plate 1.

According to the present invention having the configuration as described above, the setting groove 2 and the side portion thereof are hardly restricted by the type of the fuel injector 20 manufactured to have various body dimensions and external shapes for each vehicle model or its manufacturer. By using the slide clamper 9 and the clamping bolt 12 on the inlet side, various types of fuel injectors 20 can be fixed very easily and firmly on the setting groove 2 of the hanger plate 1, Through this, pre-clamping of the various fuel injectors 20 required to perform the required repair work by separating the head, needle, or body part of the fuel injector 20 can be performed collectively and universally with only one jig. I can.

In particular, by using the slide clamper 9 and the clamping bolt 12 together to securely and stably fix the fuel injector 20 on the setting groove 2, the injector head 21 or the injector needle 23 ) Or the injector body (22) part can be quickly and safely removed without leaving the fuel injector (20) by biting it with a tool such as a monkey, etc., and according to the body size and appearance shape of the injector body (22). Unlike conventional jigs in which several mounting grooves are formed by precise mechanical cutting, two clampers are placed around one setting groove (2) with a wider cut width so that fuel injectors 20 of various body dimensions are inserted. We can provide more rational and economical jig products through structural improvement.

In addition, so that the injector body 22 of the fuel injector 20 having a "ㅏ" shape as a special injector used in a large diesel vehicle such as a truck can be mounted and clamped together with the fuel injection pipe 24, An auxiliary setting groove (3), a hinge shaft (18), a pressure link (19) and a clamping bolt (12) are additionally installed on the edge of the hanger plate (1) opposite the setting groove (2). In one case, as the application range of the fuel injector 20, which is mounted on the jig of the present invention and capable of repairing the fuel injector 20, can be secured more widely from general vehicles to special vehicles, vehicle fuel injectors ( It is possible to provide a universal jig 10 optimized for the repair work of 20).

Finally, the hanger plate 1 and the pedestal 5 and each clamping means constituting the universal jig 10 of the present invention are preferably made of a metal material having excellent corrosion resistance, strength, and workability, and the jig is lightweighted and manufactured. If you want to achieve additional convenience, etc., it is also possible to manufacture the parts of high-strength plastic material, and the location of the setting groove (2) and the auxiliary setting groove (3) may be placed in a different position from that shown in the drawing. Of course, in a state in which one hinge shaft 18 is installed at each of the left and right sides of the opening inlet of the auxiliary setting groove 3, clamping bolts 12 are attached to both ends of the pressure link bar 19, respectively. It should be noted that it may be installed to double the clamping force of the fuel injector 20 by the pressure link bar 19.

1: hanger plate 1a: head storage part 2: setting groove
3: auxiliary setting groove 4: guide groove 5: pedestal
6: support stand 6a: assembly head 7: base plate
7a: assembly hole 8: assembly bolt 8a, 14a: fastening hole
8b, 14b: through hole 9: slide clamper 9a: guide pin
9b: pinhole 9c: close contact end 10: universal jig
11: guide hole 12: clamping bolt 12a: insertion end
12b: pin groove 13: clamping knob 14: rod bolt
15: link stand 16: link shaft 16a: shaft work
17: guide rod 17a: rod hole 18: hinge shaft
18a: mounting bolt 18b: mounting hole 19: pressure link stand
20: fuel injector 21: injector head 22: injector body
23: injector needle 24: fuel injection pipe

Claims (2)

In a jig used to fix the fuel injector 20 for repair of the fuel injector 20 separated from the engine of the vehicle,
The jig includes a hanger plate 1 manufactured in the form of a square plate, a rod-shaped pedestal 5 having a predetermined height connected to the hanger plate 1 to support the hanger plate 1 from the bottom, and the hanger A setting groove (2) that is cut in a "c" shape from the edge of one side of the plate (1) toward the inside of the hanger plate (1), and a fuel injector inserted in an upright state along the setting groove (2) ( It consists of including clamping means provided on the side of the setting groove (2) and the opened inlet of the setting groove (2) so that the injector body (22) portion of 20) can be fixed on the setting groove (2). Lose,
The side clamping means includes a straight guide groove 4 that is cut downward by a predetermined depth from the top surface of the hanger plate 1 to connect with the side surface of the setting groove 2, and the guide groove 4 Accordingly, a rod-shaped slide clamper 9 inserted and installed into the guide groove 4 to enable movement in the front and rear directions, and the edge portion of the hanger plate 1 corresponding to the rear side of the guide groove 4 It is made by including a clamping bolt 12 that is connected and installed so as to be axially rotated on the rear end of the slide clamper 9 after passing through the screw type,
The inlet-side clamping means includes a link stand 15 having one end connected to each other to enable angular movement in a link type on the edge of the hanger plate 1 corresponding to the opening of the setting groove 2, and the link It is made by including a clamping bolt 12 that is installed to thread through the other end portion of the link bar 15 placed on the inlet front side of the setting groove 2 according to the angular movement of the base 15, the side part Each clamping bolt 12 constituting the clamping means and the inlet clamping means is a universal jig for repairing a fuel injector for a vehicle, characterized in that a clamping knob 13 for a handle is provided at one end of the rod bolt 14. According to claim 1, On the other side of the hanger plate (1) opposite the setting groove (2), from the edge of the hanger plate (1) toward the inside of the hanger plate (1) "⊃" shape The auxiliary setting groove 3 that is cut into is formed, and the fuel injector 20 inserted into the auxiliary setting groove 3 is a fuel injection pipe 24 connected to and installed on the outer surface of the injector body 22. It becomes a ruler-shaped injector,
A hinge shaft 18 of a predetermined length is assembled and installed in a horizontal direction at the edge of the hanger plate 1 corresponding to the opening of the auxiliary setting groove 3, while the rear end of the hinge shaft 18 A pressure link bar 19 that is in close contact with the front end of the fuel injection pipe 24 of the fuel injector 20 inserted into the auxiliary setting groove 3 is connected and installed together with the clamping bolt 12, and the corresponding clamping bolt 12 In the case of, a clamping knob 13 for a handle is provided at one end of the rod bolt 14,
A through hole 14b through which the rod bolt 14 of the clamping bolt 12 penetrates is formed at one end of the pressing link bar 19, and the rear end of the hinge shaft 18 is formed at the rear end of the clamping bolt 12. A universal jig for repairing a fuel injector for a vehicle, characterized in that a fastening hole (14a) through which the rod bolt (14) is screwed to a predetermined depth is formed.

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