KR102026908B1 - Burrowing mold of door frame for vehicle - Google Patents

Abstract

The present invention can increase the competitiveness by reducing the overall investment cost while reducing the equipment investment cost while reducing the space required for the installation while simultaneously forming a hole in the target position of the door inner assembly using a mold, and in the process of operating the equipment To provide for ease of maintenance that occurs;
A lower mold held in the frame; An upper mold installed at an upper side of the frame and connected to and separated from the lower mold by a driving means; The mold block of the female body fixed in each position to form a hole having the same shape as the door inner assembly so as to receive and secure the door inner assembly to the bed of the lower mold and the upper mold, so as not to flow when forming the hole. and; A pin block installed with a pin for forming a hole in the door inner assembly outside the mold block fixed to the upper mold; A slider installed at an outer side of the mold block fixed to the lower die and sliding to form a hole in the door inner assembly; Scrap discharge line and mold to be installed inside the ridge of the mold block having the same shape as the door inner assembly so that the pins of the pin block can accurately form the holes while discharging the scrap generated in the hole forming process to the outside of the mold. It is characterized by including a pin core communicating with the discharge space.

Description

BURROWING MOLD OF DOOR FRAME FOR VEHICLE}

The present invention relates to an automobile door inner assembly hole forming mold, and more particularly, to form a hole in a mold inside the door frame so as to couple the weather strip to the door frame of the automobile. The present invention relates to an automobile door inner assembly hole molding mold improved to maintain a uniform and consistent quality.

In general, the inside of the door frame of the car is coupled to the vehicle body and then keep the airtight between the door and the body to prevent the inflow of moisture and foreign matter is coupled to the weather strip to block the inflow of noise and perform a dust-proof function.

In order to combine the weather strip as described above to form a coupling hole across the entire frame of the door frame (inner assembly) on the inner side of the door frame to be able to firmly bond the weather strip, the formation of such holes long ago However, in recent years, it is being performed mechanically due to the development of technology.

Various techniques have been developed and provided as a method for mechanically forming a hole in the inner assembly of the door as described above.

Document 1 is provided in the arm 3 of the articulated robot 1 which performs three-dimensional motion, and is provided in the front-end | tip part of the said arm 3 in the apparatus which laser-processes the panel 5 and processes a hole. And a clamp 9 for holding the stud bolt 7 welded to the center of the hole processing target portion of the assembled vehicle body, a rotating plate 13 rotated about the support shaft 11 of the clamp 9, and the rotating plate. A laser torch 15 is provided at the edge of 13 and rotates with the rotating plate 13 about the support shaft 11 to laser process a hole having a predetermined diameter.

Document 2 includes a body frame slidably mounted to a mount frame fixed to the ground of the work space, a rotating screw connected to a drive shaft of a drive motor installed on the body frame and being installed inside the body frame, and a rotating screw. Rotating body is rotated by receiving rotational force, and the rotating body is installed to be able to change the length of projecting outward of the body frame by the rotational drive of the rotating screw. A take-out screw that is rotated and is installed to be capable of lifting up and down inside the rotor, a power transmission unit installed inside the rotor to selectively transmit the rotational force of the rotor to the take-out screw, and a take-out screw from the rotor. A plurality of cutters protruding to the outside to process the through-holes in the workpiece Configuration.

(Document 1) Utility Model Application No. 20-1997-0038613 (Document 2) Utility Model Registration No. 20-0470338-0000

Although various techniques for forming holes exist as described above, the method actually used in the automotive industry has adopted the formation of holes through laser processing.

This is because the inner space of the inner part of the door assembly is about 14 mm in the upper part width and 17 mm or less in the lower part width. Therefore, it is practical to discharge the scrap generated in the process of forming the hole with the mold to the outside. It is difficult to form a hole using a mold until now, and even in the case of using a device such as document 2, since the space is too small to form a hole, it is a situation in which a hole is formed using a laser.

When the hole is formed by using a laser, the laser 5-axis machine is used to sequentially form the hole in the door inner assembly. The time required for forming the hole is not high, but the initial investment is expensive. Not only does it cost a lot of money, but it also takes up a lot of installation space because of the large size of the laser 5-axis processing machine. It is becoming.

Since holes are formed with a laser, there is no difficulty in quality control and quality control, but sooting occurs around the hole or opposite hole formation or is fixed to the door inner assembly during laser processing. If the process is performed without finding such a soot, the paint surface may be peeled off during the actual vehicle driving process, so that there is a high risk of claims and recalls.

In addition, if an abnormality occurs in the process of operating the laser 5-axis processing machine, it takes a lot of time and money to maintain and repair it, and if the maintenance time is long, it may cause a disruption in production. Overall efficiency is not high.

In the present invention, as invented to solve the above problems, the lower mold is maintained in the frame; An upper mold installed at an upper side of the frame and connected to and separated from the lower mold by a driving means; The mold block of the female body fixed in each position to form a hole having the same shape as the door inner assembly so as to receive and secure the door inner assembly to the bed of the lower mold and the upper mold, so as not to flow when forming the hole. and; A pin block installed with a pin for forming a hole in the door inner assembly outside the mold block fixed to the upper mold; A slider installed at an outer side of the mold block fixed to the lower die and sliding to form a hole in the door inner assembly; Scrap discharge line and mold to be installed inside the ridge of the mold block having the same shape as the door inner assembly so that the pins of the pin block can accurately form the holes while discharging the scrap generated in the hole forming process to the outside of the mold. Including a pin core in communication with the discharge space;

By using the mold to simultaneously form the holes at the desired location of the door inner assembly, it is possible to maintain the quality and uniformity of the hole formation at the same time, thereby reducing the space required for the installation of the equipment and reducing the overall investment cost by reducing the equipment investment cost. It is possible to achieve the purpose of increasing the number of parts and providing the ease of maintenance that occurs during the operation of the facility.

According to the present invention, it is possible to form a hole in the door inner assembly with a mold at a time, thereby reducing the installation space and reducing the initial investment cost and maintenance cost, while maintaining the same level of quality as laser processing. It has the effect of increasing the competitiveness.

While forming holes in the door inner assembly with a mold at the same time, it provides a mold with structural improvements to facilitate the discharge of scrap caused by hole formation in a narrow door inner assembly, thereby increasing productivity and providing ease of maintenance. It is an invention having various effects.

1 is a photograph showing a state in which the door inner assembly is supplied to the automobile door inner assembly hole forming mold to which the technique of the present invention is applied.
Figure 2 is a photograph taken from the mold for molding the door inner assembly of the automobile door to which the technology of the present invention is applied.
FIG. 3 is a cross-sectional view taken along line A-A of the mold for forming an inner door assembly of an automobile door shown in FIG.
Figure 4 is a perspective view taken from the core of the mold for molding a door inner assembly for automobile doors to which the technique of the present invention is applied.
Figure 5 is a cross-sectional view taken from the core of the mold for molding a door inner assembly for automobile doors to which the present invention is applied.
Figure 6 is a block diagram of another example showing the core of the mold for forming a door inner assembly for automobiles to which the technology of the present invention is applied.
Figure 7 is a block diagram showing another example of a mold for forming a door inner assembly for automobiles to which the technology of the present invention is applied.

Hereinafter, with reference to the accompanying drawings will be described a preferred configuration and operation of the present invention for achieving the above object.

1 is a photograph showing a state in which the door inner assembly is supplied to the automobile door inner assembly hole-molding mold to which the technique of the present invention is applied, and FIG. 2 is a photograph of an automobile door inner assembly hole forming mold to which the technique of the present invention is applied. 3 is a cross-sectional view taken along line A-A of the automobile door inner assembly hole forming mold shown in FIG. 2, and FIG. 4 is a perspective view taken from the core of the automobile door inner assembly hole forming mold to which the technique of the present invention is applied. 5 is a cross-sectional view of the core of the automobile door inner assembly hole forming mold to which the technique of the present invention is applied, and FIG. 6 is a configuration of another example of the core of the mold for automobile door inner assembly hole forming to which the technique of the present invention is applied. It demonstrates together as a figure.

The automobile door inner assembly hole forming mold 100 to which the technique of the present invention is applied includes a lower die 101 held in a frame, and a lower die 101 connected to and separated from the lower die 101 by a driving means. The upper mold 102 is composed of.

Supplying and discharging the door inner assembly 103 between the lower mold 101 and the upper mold 102 is configured by a robot installed outside the mold, and loads the door inner assembly 103 for supply. The rack is provided with a loading rack for loading the door inner assembly 103 having a supply rack and a hole formed therein, and an inspection jig (jig) for checking whether the hole is normally formed at all positions of the loading rack is a mold. Since it is well known in the related art, a detailed description thereof will be omitted.

The lower inner mold 101 and the upper mold 102 have a door inner assembly 103 provided with a door inner assembly 103 to form a hole, and a door inner assembly so as to hold it so that it does not flow in the process of forming the hole. The mold block 105 of the male body which has the external shape same as the cross-sectional shape of 103 is fixed.

The mold block 105 is formed as a unit for each position to form a hole in the door inner assembly 103 to maintain and secure a predetermined interval, and the door inner assembly outside the mold block fixed to the upper mold 102 The pin block 107 is provided with a pin 106 for forming a substantial hole in the 103, and the pin block 107 is in contact with the outer side of the mold block 105 fixed to the lower die 101 and slides. At the same time, a slider 108 is provided to form a hole in the door inner assembly 103 supplied to the mold block 105.

The mold block 105 has a ridge 110 formed at the center thereof to have the same shape as the inner portion 109 of the door inner assembly 103, and a pin block 107 outside the ridge 110. The pin 106 has a pin core 115 so as to form the hole 111 accurately.

In the mold block 105 in which the pin core 115 is embedded, it is formed in the bed 104 and communicates with the scrap discharge line 116 to discharge the scrap generated in the hole forming process to the outside of the mold 100. It has a mold discharge space 117 to be.

The pin core 115 may be made of a material that is more durable than the mold block 105, and may be able to exclude the fear of wear and deformation even during frequent hole formation, and even in a narrow inner portion 109. It is possible to have a structure that does not interfere with the formation of holes in the mold 100 by excluding the phenomenon of accumulation while excluding interference caused by the scrap generated in the process.

The pin core 115 is inserted into the core body 119 which is formed to be recessed from the outer inclined surface 118 of the ridge 110 of the mold block 105 into the mold discharge space 117. To form, the outer surface of the core body 120 has a flat support surface 121 for supporting the inner portion 109 of the door inner assembly 103 together with the outer inclined surface 118 at the time of hole formation do.

A rectangular, oval or rectangular corner portion having a length L rather than the width B of the supporting surface 121 is formed in a rounded form so that the narrow inner portion 110 can be supported in a stable state as much as possible. It is preferable.

Inward direction of the support surface 121 of the core body 120 to prevent the pin core 115 is in close contact with the mold block 105 to be pushed in when the hole 111 is formed by the pin 106 To form the locking step 122, the locking step 122 is to secure the 1/3 of the total height (H) of the core body 120 will be able to maintain durability.

A pinhole 123 is formed at the center of the core body 120 to allow the pin 106 to enter, and a scrap space 125 having a diameter larger than the diameter D of the pinhole 123 is formed inside the pinhole 123. ) So that the scrap generated as the hole 111 is formed in the inner portion 109 by the pin 106 can be easily spaced apart from the pin 106 and the pin hole 123.

An opening portion 126 is formed in a portion of the scrap space 125 connected to the mold discharge space 117 to allow the scrap to fall naturally into the mold discharge space 117, and the remaining portion of the scrap space 125 is formed in the mold block 105. It is configured to form a bridge 127 integral with the core body 120 to perform a function of supporting the engaging jaw 122 together.

The standard of the pin core 115 to which the technique of the present invention is applied is when the upper width B1 of the inner portion 109 of the door inner assembly 103 is about 14 mm, and the lower width B2 is about 17 mm, The width B of the support surface 121 is 13 mm, the length L of the support surface 121 is 20 mm, the height of the locking jaw 122 is 4 mm, and the total height of the core body 120 is 11 mm. Although it is configured, it will be obvious that the specification of the inner part 109 of the door inner assembly 103 may vary depending on the design and mathematical calculations according to the vehicle model.

Looking at the process of forming the hole 111 in the inner portion 109 of the door inner assembly 103 by using the automobile door frame hole molding mold 100 to which the technique of the present invention is applied as described above.

When the door inner assembly 103 loaded in the supply rack is placed in the lower die 101 constituting the mold 100 by the robot, the upper die 102 is lowered to operate the inner portion 109 of the door inner assembly 103. At the same time, a plurality of holes 111 are formed at a desired position, and when the upper mold 102 is raised after the hole 111 is formed, the robot draws the door inner assembly 103 and loads it into the loading rack. Work is done.

When the door inner assembly 103 is supplied to the lower die 101, the door inner assembly 103 is fixed to the bed 104 and placed in the mold block 105 having the same shape as the inner portion 109 of the door inner assembly 103. As the 102 is engaged, the door inner assembly 103 is brought to a state where flow is completely excluded.

The mold block 105 in which the pin block 107, which is installed with the pin 106 for forming the hole 111 in the upper mold 102, is fixed to the lower mold 101 while the upper mold 102 is engaged. In contact with the slider 108 provided on the outside of the mold block 105 to move in the direction to form the hole 111 in the inner position of the inner portion 109 of the door inner assembly 103, Since the operation of the lower dies 101 and 102 is a well-known technique, a detailed description thereof will be omitted.

A process of forming the hole 111 in the inner portion 109 of the door inner assembly 103 by the pin 106 will be described in detail as follows.

When the pin 106 forms the hole 111 in the inner portion 109 of the door inner assembly 103, the mold is provided in the same shape as the door inner assembly 103 and holds the door inner assembly 103 in place. The inner portion 109 of the door inner assembly 103 is in close contact with the ridge 110 of the block 105 on the outer inclined surface 118.

The pin core 115 having a higher rigidity than the mold block 105 is coupled to the position where the hole 111 is to be formed in the outer inclined surface 118, and in particular, the support surface 121 constituting the pin core 115 is formed. Where the hole 111 is formed even if the hole 111 is formed because the length L is longer than the width B so as to support the inner portion 109 around the hole 111 in a wide and stable manner. Alternatively, the phenomenon that the inner portion 109 is deformed or damaged may be prevented.

In addition, when the hole 111 is formed in the inner portion 109 of the door inner assembly 103 by the pin 106, scrap of the size of the hole 111 is generated, and the pin 106 enters into the pin core 115. It is pushed by, this scrap than the pinhole 123 in the core body 120 through the pinhole 123 formed in the center of the support surface 121 of the core body 120 constituting the pin core 115 It can be easily removed from the pinhole 123 and the pin 106 while moving to the largely formed scrap space (125).

Since the scrap naturally falls downward through the scrap space 125, the scrap is discharged to the outside of the lower mold 101 through the mold discharge space 117 and the scrap discharge line 116, so that the scrap is pin core 115 and the mold. As it remains in the block 105 and accumulates, it is possible to solve the problem in which the pin 106 does not normally form the pinhole 111.

In particular, in the present invention, although the space of the inner portion 109 of the door inner assembly 103 is narrow, it is difficult to form the hole 111, but the hole 111 is provided with the pin core 115 inserted into the narrow space. While preventing the deformation and damage of the inner portion 109 in the process of forming the hole 111 to facilitate the discharge of the naturally occurring scrap by forming a number of holes by the mold 100 at the same time It becomes possible to form.

Of course, the load received by the pin core 115 in the process of forming the hole 111 by the pin 106 is the mold block 105 by the locking step 122 formed on the upper side of the core body 120 The bridge 127 formed at the lower side of the core body 120 having the scrap space 125 is also supported by the mold block 105, so that it is possible to perform a stable supporting function and to use it for a long time. Therefore, when there is abrasion of the pin core 115 or when the hole 111 having a different size is to be formed, it is possible to replace and use the new pin core 115.

As another example, as shown in FIG. 7, when the scrap is accumulated in the scrap space 125 formed in the pin core 115, and natural dropping or discharge is difficult, the bed 104 of the lower die 101 is prized. The ejection cylinder 130 is installed at a position that does not interfere with the 102, and the rod 131 of the ejection cylinder 130 is formed in the mold block 105 opposite to the pinhole 123 to form the scrap space 125. It may be possible to remove the trapped scrap by entering and exiting the blowout hole 132 communicated with.

The present invention as described above, while forming the holes at the desired position of the door inner assembly using a mold at the same time to maintain the quality and uniformity according to the hole formation to reduce the equipment investment cost while reducing the space required for installation of the equipment It can increase the competitiveness by reducing the overall production cost, and can provide the ease of maintenance that occurs during the operation of the facility.

100; Mold for hole molding for car door inner assembly
101; Lower mold 102; Prize
103; Door frame 105; Mold Block
109; Inner portion 110; Ridge
115; Pincore 118; Outer slope
119; Core hole 120; Core body
121; Base surface 122; Jam
123; Pinhole 125; Scrap space
126; Opening 127; bridge

Claims (4)

A lower die 101 held in the frame;
An upper mold 102 installed at an upper side of the frame and connected to and separated from the lower mold 101 by a driving means;
The lower inner mold 101 and the upper mold 102 has the same shape as the door inner assembly 103 so as to receive the door inner assembly 103 is settled, and to hold it does not flow when forming the hole A mold block 105 of a male body fixed for each position to be formed;
A pin block (107) installed with a pin (106) for forming a hole in the door inner assembly (103) outside the mold block fixed to the upper mold (102);
A slider 108 installed outside the mold block 105 fixed to the lower die 101 to allow the pin block 107 to slide to form a hole in the door inner assembly 103;
The pin 106 of the pin block 107 accurately forms the hole 111 by being embedded outside the ridge 110 of the mold block 105 having the same shape as the inner portion 109 of the door inner assembly 103. A fin core 115 in communication with the scrap discharge line 116 and the mold discharge space 117 so as to discharge the scrap generated in the hole forming process to the outside of the mold 100;
The pin core 115 may include a core body 120 inserted into a core hole 119 formed to be recessed from the ridge 110 of the mold block 105 to the mold discharge space 117. ;
A support surface 121 supporting the inner portion 109 of the door inner assembly 103 together with an outer inclined surface 118 when holes are formed in the outer surface of the core body 120;
A locking step (122) formed in the support surface (121) inward to prevent the pin core (115) from being in close contact with the mold block (105) and being pushed in forming the hole (111);
A pinhole 123 formed to allow the pin 106 to enter the center of the core body 120;
The scrap space 125 is formed inside the pinhole 123 to be larger than the diameter D of the pinhole 123 to separate the scrap generated while the hole 111 is formed from the pin 106 and the pinhole 123. and;
An opening 126 formed in a portion of the scrap space 125 connected to the mold discharge space 117 to allow the scrap to fall naturally into the mold discharge space 117;
The parts excluding the opening 126 may include a bridge 127 having an integral body of the core body 120 so as to be supported together with the locking jaw 122 in the mold block 105. Dragon mold. delete delete The method of claim 1;
The support surface 121 has a shape in which the length L is longer than the width B so as to support the inner part 110 in a stable state.
The locking jaw (122) is an automobile door inner assembly hole forming mold, characterized in that to maintain 1/3 of the total height (H) of the core body 120 to ensure durability.

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