KR200414589Y1 - Device of Processing Inside Diameter for Bolt Trimming Dies - Google Patents

Abstract

Regarding the inner diameter processing apparatus of the bolt trimming die, and to form a fastener 113 to prevent the departure to one side, and to form a rotating core rod 115 connected to rotate with the rotary support 114 for supporting the rotation to the other side Rotating part 110 is formed so that the inclined surface 112 is formed to be connected to the rotary shaft 111 is formed so that the diameter is expanded from one side to the other side, the rotary shaft 111 is formed to rotate the rotary shaft 111 with the inclined surface in the rotary core rod 115, Insertion inclination portion 123 is formed in front of the support body 121 having a through hole insertion hole 122 to be inserted into the rotary shaft 111 of the rotating part 110, in the center of the support body 121 The machining support portion 120 radially formed with the coupling holes 124 in the form of a plurality of holes, and the coupling support hole 124 formed in the plurality of radially in the processing support portion 120 to insert the machining surface 133 toward the outer diameter side. To form a working die 131, Including a processing unit 130 formed to be detached while transported by forming the inclined surface 134 in the direction opposite to the inclined surface 112 of the rotary shaft 111 in contact with the rotating shaft 111 to the ball dice 131. It is characterized by the configuration.

Trimming dice, rotating shaft, inclined surface, support body, machining vise

Description

Device of Processing Inside Diameter for Bolt Trimming Dies

1 is a block diagram showing a general trimmer.

2 is a configuration diagram showing an operation state of a general trimmer.

Figure 3 is a perspective view showing the form according to the trimming die manufacturing process used in a general trimmer.

Figure 4 is an exploded perspective view showing a bolt trimming inner diameter factory value according to the present invention.

5 is a cross-sectional view showing a state in which the bolt trimming die inner working apparatus according to the present invention is installed.

6 is an operation diagram showing a state in which the inner diameter of the bolt trimming die according to the present invention is inserted into the trimming die as the inner diameter portion.

7 is an operation diagram showing a state in which the inner diameter of the bolt trimming die according to the present invention is installed as the inner diameter portion of the trimming die.

8 is an operation view showing a state in which the processing die is fixed to the inner diameter portion of the trimming die for processing the inner diameter of the bolt trimming die according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: Trimming die before processing 2: Internal diameter part

3: finished trimming 100: processing equipment

110: rotating portion 111: rotating shaft

112: inclined surface 113: fixture

114: rotary support 115: rotary core rod

120: processing support 121: support body

122: insertion hole 123: insertion inclined portion

124: engagement hole 125: bearing insertion groove

126: bearing 127: seating hole

128: bearing fixture 130: machining

131: machining dice 132: round part

133: machining surface 134: inclined surface

The present invention relates to a bolt trimming inner diameter processing apparatus, and more particularly, the machining dice are moved by the inclination angle while moving the rotating shaft formed tapered with a constant inclination of the trimming die used to machine the outside on the head of the hexagonal bolt. Fixing and releasing with the inner diameter of the hole to finish the non-uniform inner diameter to improve the die surface hardness to improve the quality of the bolts to be processed, reduce the quantity of defects, and to prevent wear or rust inside, which increases the service life Provide trimming die inner diameter factory value.

In general, bolts refer to mechanical elements used to fix building materials or mechanical parts. Screws are round rods, usually with a head.

The head is usually hexagonal, but it is also used in the shape of square, cylinder, and dish.

The most widely used is through bolts, which are bolted into the holes of the fasteners and then clamped with nuts. If the through-hole cannot be drilled, tap bolts, which are screwed into the holes and screwed in with bolts, nuts, stud bolts that are pre-planted and fastened to the outside, and machines are installed on the foundation concrete. There is a kind of foundation bolt used when doing so.

These bolts are usually forced, and are referred to as finishing bolts, semi-finishing bolts, black skin bolts, and the like, depending on the degree of surface finish. There are also bolts made of brass or light alloy.

As mentioned above, the load applied to the threaded portion of the bolt includes a case where a load and a torsion are applied in the axial direction, a shear load, a shock load and a static load in the axial direction, and the like. .

 As such, during the manufacturing process of the hex head bolt which is most used among the bolts, the foreign matter generated at each corner of the hexagon during the hexagonal molding is removed through a trimmer to remove the foreign matter generated at the hexagonal edges. .

As described above, a general trimming machine for surface treatment of the head of the hexagon bolt has been disclosed in Korean Utility Model Application No. No. 1993-362, which will be described with reference to FIGS. 1 and 2.

The bolt semi-finished product 13 is clamped on the fixing tool 12 by the clamp driving device, and then punched by the punch 11 by the bolt flap removal device of the present invention to the hexagonal mold 14 on the side. As the bolt flap 13 'portion is separated while the bolt semi-finished product 13 passes, the driving of the bolt flap removing apparatus will be described in more detail; With the driving of the connecting rod 1 connected to the crankshaft, the bearing 4 arranged at the end of the inclined surface 2 ′ of the pushing cam 2 connected thereto is connected to push the inclined surface 5 ′ of the vertical cam 5. Therefore, the vertical cam (5) is a state in which the upper end is blocked by the adjustment bolt (8) is to perform a constant angular movement to the side. Therefore, the pusher 9 elastically installed with the spring 10 at the tip of the vertical cam 5 is pushed to the side, so that the pusher 9 and the punch 11 connected to the side perform a slide movement, The rear end will be punched out.

The general trimming device as described above is to process the head of the bolt by pushing the bolt semi-finished product into the hexagonal mold, and the hexagonal mold is called the trimming dice. do.

 As shown in FIG. 3, the trimming die, which is a tool for trimming the head of the bolt, is pressurized to the front surface in a state in which a hexagonal tool is inserted into the trimming dice before machining in a cylindrical shape, as shown in FIG. 3. By forming the front surface of the hexagonal shape is configured to perform the surface treatment while the hexagonal bolt passes through the front portion, the inner diameter of the trimming dice before processing is a machining portion for processing the hexagonal bolt.

 As described above, the trimming dice for processing the hexagon bolts are difficult to machine on the inner diameter of the hexagon bolts, and are manufactured in a rough state, so that the hexagonal heads of the bolts pass through the trimming dice during bolt processing. There was a problem that the finished surface is non-uniform, not able to produce high quality hexagon bolts.

In addition, as the trimming die for processing the hexagon bolt is processed without the internal diameter of the internal processing portion being trimmed, the surface hardness is not constant within the processing portion, so that the bolt that is inserted under strong pressure and the surface treatment is repeatedly inserted. If the hardness is not constant, breakage occurs in the weak part and should be replaced. If the replacement time is missed, there is a problem that the productivity is greatly reduced by producing bad bolts.

In addition, the trimming die for processing the hexagon bolt is to be manufactured with a high hardness to process the hexagonal bolt of the force, there was a problem that economic loss is caused when the damage and breakage occurs due to the difficulty in manufacturing and processing.

The main object of the present invention devised to solve the problem is to process the inner surface with a machining die that is fixed and released while moving the tapered rotary shaft to the inner diameter before machining the trimming dice for processing the head of the hexagonal bolt. The uniformity of the surface reduces the number of defective bolts and increases the service life by suppressing wear and rust.

As such, the inner diameter of the bolt trimming die of the present invention devised to achieve the object to form a fixture to prevent the departure to one side, and to form a rotating core rod connected to the rotating support for rotation to the other side to one side A support formed with a rotating part formed so as to be connected to a rotating shaft formed with an inclined surface so that the diameter thereof is expanded to the other side from the rotating core rod, and a rotating shaft formed with the inclined surface being rotated on the rotating core rod, and an insertion hole having a through hole to be inserted into the rotating shaft of the rotating part. Inserted inclined portion is formed in the front of the body, and the processing support portion formed in the center of the support body in the form of a plurality of long-hole coupling holes, and inserted into the plurality of radially coupled coupling holes formed in the processing support portion to the outer surface side The working die is formed and the rotating shaft is in contact with the working die. To form a slope in the direction opposite to the inclined surface of the rotary shaft it characterized in that it comprises a processing unit formed so as to be detachable as feed.

In addition, the processing support portion forms a bearing insertion groove in the form of a small groove toward the rear side of the support body, forms a bearing on the outside of the bearing insertion groove, and the rear of the bearing with a bearing fixture provided on the rear side of the bearing. It is characterized in that it is configured to form a seating hole with a large diameter on the outside of the support body while being fixed to settle the trimming dice before processing to process into a processing dice of the processing portion.

In addition, the processing unit is characterized in that configured to minimize the impact when the rotating processing die is formed by forming a round-shaped round portion at the front end of the cutting die in contact with the inner diameter portion of the trimming die before processing.

Thus, looking at the preferred embodiment with respect to the inner diameter machining apparatus of the bolt trimming dice of the present invention configured as follows.

4 is a perspective view showing a state in which the bolt trimming die inner diameter processing apparatus according to the present invention is installed, Figure 5 is a cross-sectional view showing a state in which the bolt trimming die inner diameter processing apparatus according to the present invention is installed, Figure 6 is a bolt according to the present invention Fig. 7 is an operation diagram showing a state in which the inner diameter of the trimming die is inserted into the trimming die in the inner diameter portion, Figure 7 is an operation diagram showing a state in which the inner diameter of the bolt trimming die is installed in the trimming die in the inner diameter portion. 8 is an operation diagram showing a state in which the machining die is fixed to the inner diameter portion of the trimming die and the machining value of the bolt trimming die according to the present invention.

4 to 8, the inner diameter processing apparatus 100 of the bolt trimming die of the present invention has one side of the rotating shaft 111 that rotates to be inserted into the inner diameter portion 2 of the trimming dice 1 before processing. And a processing support part 120 having a supporting body 121 having a rotating part 110 formed to enlarge the diameter to the other side, and an insertion hole 122 inserted into the rotating shaft 111 of the rotating part 110. The processing unit 130 is fixed to the processing support unit 120 to process the inner diameter portion 2 by forming a plurality of processing dice 131 radially to enlarge the outer diameter while transporting the rotating shaft 111 is expanded diameter Consists of including.

The rotating part 110 forms a fixture 113 to prevent the departure to one side, and forms a rotating core rod 115 connected to rotate with the rotary support 114 for supporting the rotation to the other side diameter from one side to the other side The inclined surface 112 is formed to be connected to the rotating shaft 111 formed so as to be enlarged so that the rotating shaft 111 provided with the inclined surface is rotated by the rotation core rod 115.

The processing support part 120 forms an insertion inclination part 123 on the front surface of the support body 121 having a through hole insertion hole 122 so as to be inserted into the rotation shaft 111 of the rotation part 110, and the support body. It is configured to form a plurality of coupling holes 124 in the form of a plurality of long holes in the center of the (121).

Here, the processing support portion 120 forms a bearing insertion groove 125 of the groove shape having a small diameter toward the rear side of the support body 121, and forms a bearing 126 to the outside of the bearing insertion groove 125, The rear end of the bearing 126 is fixed with a bearing fixing tool 128 provided at the rear of the bearing 126 to form a seating hole 127 with a large diameter on the outer side of the support body 121 to form the processing part 130. It is preferable to configure so that the trimming dice 1 before processing with the processing dice 131 of the settle.

The processing unit 130 is inserted into a plurality of radially coupled coupling holes 124 in the processing support unit 120 to form a processing die 131 having a processing surface 133 to the outer diameter side, the processing die 131 The inclined surface 134 is formed in a direction opposite to the inclined surface 112 of the rotating shaft 111 to the inner side where the rotating shaft 111 is in contact with and configured to be detached and transported.

Here, the processing unit 130 is a machining die that rotates by forming a round-shaped round portion 132 on the front end of the cutting die 1 to the inner diameter portion 2 of the trimming dice 1 before the machining die 131 It is desirable to configure 131 to minimize impact upon contact.

Thus, look at the action of the inner diameter processing device of the bolt trimming dice of the present invention configured as follows.

First, the fastener 113 formed to fix the trimming die 1 so as to process the inner diameter portion 2 of the trimming die 1 before processing, and to prevent deviation from one side with the inner diameter portion 2 of the trimming dice 1 before processing. ) Is inserted into the processing apparatus 100 to insert the processing apparatus 100 into the inner diameter portion 2 of the trimming dice 1 before processing.

In this way, the rotating core rod 115 is supported by the rotary support 114 formed on the other side of the rotary shaft 111 in a state in which the rotary shaft formed with the inclined surface 112 is inserted to expand the diameter from the fixing member 113 formed on one side to the other side. Rotating rotates the processing unit 130 supported by the processing support 120 is inserted into the rotary shaft 111 to rotate so that the processing support unit 120 coupled to the processing unit 130 is interlocked.

As described above, when the processing unit 130 is rotated and the rotating unit 110 is inserted, the inclination degree opposite to the inclined surface of the rotating shaft 111 rotated while the support body 121 having the insertion inclination unit 123 formed on the front side retreats. While the inclined surfaces of the processing dice 131 having a mutual interaction with each other, the processing dies 131 coupled to the coupling holes 124 formed in the radial direction of the support body 121 protrude, and the round part 132 is trimmed before processing. As the inner diameter portion 2 of the die 1 is brought into contact, the machining die 131 of the inner diameter portion 2 of the trimming dice 1 before contact is brought into contact with each other to start processing.

As such, the processing dice 131 which is in contact with the trimming die 1 while rotating is continuously moved while the round part 132 is in contact with the processing die 131 while minimizing the processing impact of the inclined surface 112 of the rotating shaft 111 and the processing dice 131. As the inclined surface acts in the opposite direction, the outer diameter is enlarged and rotated in a fixed state to the maximum protruding range so that the machining die 131 protrudes to the maximum protruding outer diameter and is fixed to the rotating shaft 111.

As described above, the contact end of the trimming dice 1 before processing is placed in the seating hole 127 fixed to the rear of the support body by the bearing 126 in the state where the processing die 131 protrudes to the maximum protrusion range and is fixed. In order to process the inner diameter portion 2 by rotating the processing die 131 in the state in which the cutting die 131 is projected to the maximum with the seating die 137 seated before the machining die 131 to the maximum diameter. 2) process.

In this way, when the processing is completed, the processing die 131 mounted while retreating the rotating unit 110 is dismantled along the inclined surface 112 of the rotating shaft 111 to complete the processing to the inner diameter portion 2 of the trimming dice 1 before processing. When the processing is completed, the processing dice 131 fixed to the rotary shaft 111 is dismantled to finish the processing.

As such, the inner diameter of the bolt trimming die of the present invention is configured to form a fastener on one side to process the inner diameter of the trimming dice for processing the surface on each corner of the hexagonal bolt and the other side of the rotary support coupled to the rotating body Form a core rod to form a support body in which a rotating shaft having a sloped surface is formed so as to extend a diameter from one side to the other in a predetermined slope in the insertion hole provided in the through hole shape therein, and the inclined insertion slope of a constant in the front portion of the support body Forming a part, forming a plurality of through-hole coupling holes radially in the center of the support body, and engaging an anchorage for restoring the trimming die with a bearing formed at the rear of the support body; The room opposite to the rotating shaft inside the processing die which formed the round part and formed the machining surface outward. The inner diameter of the trimming die inserted while processing the inner end of the inserted trimming die is formed while the machining die coupled to the support body corresponds to the inclined surface of the machining die formed along the inclined surface of the rotary shaft. As a result, the surface hardness of the inner diameter is separated by the friction part to be improved by friction, and after the trimming die is manufactured, the surface of the inner diameter part to be machined is processed, and the bolt is processed evenly on each side while passing through the uniform trimming dice. It provides an effect.

In addition, the internal diameter of the bolt trimming die according to the present invention is applied to the inner diameter of the trimming die before the process is applied to a constant pressure in the state of inserting a rotating shaft having an inclined surface corresponding to the inclined surface of the machining dice coupled to the support body while expanding the diameter. The inner diameter part is processed while protruding and gradually rising while interacting, and is gradually processed by the pressure at the insertion position, and is primarily processed at the round part, and when it reaches a certain position, it is transferred to the rotating shaft and protrudes at the maximum angle at which the processing die protrudes. By trimming the surface to the inner diameter while rotating, by performing the finishing operation while wearing the surface a plurality of times in sequence, it improves the hardness of the surface and uniformity of the surface roughness to provide the effect of improving the reliability of the product.

In addition, the internal diameter of the bolt trimming die according to the present invention, the inclined surface formed on the inner surface of the processing dice for processing the inner diameter portion of the trimming dice before processing and the inclined surface formed to rotate the diameter of the rotating shaft is formed in the opposite direction to mesh with each other. By forming it easily and dismantling, it is processed quickly and the machining angle increases and decreases according to the inclination of the inclined surface in order to minimize the roughness of the surface due to the rapid processing, thereby producing high-quality trimming dice and improving productivity. to provide.

In addition, the internal diameter of the bolt trimming die according to the present invention is to process the process while gradually increasing the diameter of the processing die by the pressure on the inclined portion formed inside the inner diameter of the processing surface is formed to increase the hardness of the inner diameter of the trimming die before processing. Improved productivity by continuously producing high quality bolts by continually producing high quality bolts by minimizing surface roughness while minimizing surface roughness and processing with trimming dice so that the hexagonal surface of hexagon bolts is accurate and the surface condition is good. It provides an effect.

In addition, the inner diameter of the bolt trimming die of the present invention is a machining die that is rotated by forming a seating hole coupled to the bearing to the other side of the support body coupled to the processing die of the processing device for finishing the inner diameter of the trimming dice before processing. By setting the insertion position of the machining dice rotated by mounting the trimming dice while supporting, the trimming dice to be machined can be settled, thereby providing a stable surface processing and improving the productivity.

Claims (3)

Forming a fastener 113 to prevent departure to one side, and forming a rotating core rod 115 connected to rotate with the rotary support 114 for supporting the rotation to the other side inclined surface 112 to expand the diameter from one side to the other side Rotating portion 110 is formed to be connected to the rotating shaft 111 is formed to rotate the rotating shaft 111 provided with the inclined surface in the rotary core rod 115 is rotated, Insertion inclination portion 123 is formed in front of the support body 121 having a through hole insertion hole 122 to be inserted into the rotary shaft 111 of the rotating part 110, in the center of the support body 121 A processing support part 120 having radially coupled coupling holes 124 in the form of a plurality of holes, Inserted into a plurality of radially coupled coupling holes 124 to the processing support portion 120 to form a machining die 131 having a machining surface 133 to the outer diameter side, the rotating shaft 111 on the machining die 131 The inner diameter of the bolt trimming die comprising a machining part 130 formed to be detached while being transported by forming the inclined surface 134 in a direction opposite to the inclined surface 112 of the rotating shaft 111 to be in contact with the inside. Processing equipment. The method of claim 1, The processing support part 120 forms a bearing insertion groove 125 having a small diameter groove shape toward the rear side of the support body 121, and forms a bearing 126 on the outside of the bearing insertion groove 125. Processing of the processing unit 130 by forming a seating hole 127 with a large diameter on the outer side of the support body 121 while fixing the rear portion of the bearing 126 with the bearing fixing tool 128 provided at the rear side to the outside of the 126. An inner diameter machining apparatus for a bolt trimming die, characterized in that the trimming die (1) to be machined by the die (131) is settled. The method of claim 1, The processing unit 130 forms a round-shaped round part 132 on the front end of the processing die 131 to which the inner diameter part 2 of the trimming die 1 contacts before processing, thereby rotating the processing die 131. ) Is an internal diameter processing apparatus of the bolt trimming dice, characterized in that configured to minimize the impact on contact.

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