JPH04118241U - Punch back and forth position adjustment device in heading molding machine - Google Patents

Abstract

(57) [Summary] [Purpose] By making the amount of back-and-forth movement of the punch calculated from the measured value of the measuring means accurately correspond to the actual amount of back-and-forth movement of the punch, it is possible to adjust the adjustment body while reading the measured value. By moving it up and down, you can ensure that the punch moves back and forth by the required amount. [Structure] When the adjustment body 12 is moved up and down by the operation of the vertical movement mechanism 13, the punch contacting side surface 12b of the adjustment body 12 is displaced back and forth, and this displacement moves the punch 8 back and forth. In the heading molding machine, the adjusting body 1
Measuring means 19 is provided for measuring the amount of displacement of the punch abutting side surface 12b of No. 2. [Effect] Adjustment of the front and rear positions of the punch can be done easily and quickly.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea uses a die and punch to press-form the material into parts such as bolts and nuts. This article relates to a device for adjusting the longitudinal position of a punch in a heading forming machine that forms parts. In particular, by moving the adjustment body placed behind the punch up and down, the punch can be adjusted. A device for adjusting the back and forth position of a punch in a heading forming machine that is configured to move back and forth. related.

0002

[Conventional technology]

Conventionally, it was used as a multi-stage heading forming machine for parts such as bolts and nuts. Multiple dies from A to the final die are arranged side by side in the horizontal direction, and the front of these dies is A punch facing each die is attached to a ram that moves forward and backward with respect to the die. When the ram moves forward, the material first fed to the front of the die is punched into the die. When the ram is retracted, the pressed material is pushed out from within the die. The operation of transferring the ram to the front of the next die is repeated every time the ram moves back and forth. By using It is well known that the product is formed into a product with a predetermined shape by being pressed and formed. be.

0003 In such heading molding machines, the positional relationship between the die and punch when the material is driven is The relationship is important, and if it is not set properly, it will not be possible to obtain a molded product with high machining accuracy. Therefore, during heading, the front and rear positions of the punch relative to the die must be carefully adjusted. After that, heading will begin.

0004 However, even if the positions of these dies and punches are set appropriately at the beginning, While processing continues, it expands due to the effects of processing heat generated during heading. The shaft diameter and axial length will change slightly, but the initially set position will change. There will be a gap in the relationship. Heading continues with this condition left unattended. In this case, the processing accuracy of the molded product will decrease, so in that case, the machine should be operated. After stopping and finely adjusting the front and back positions of the punches, heading is restarted.

[0005] By the way, in the past, the adjustment of the front and back position of this punch was done using an internal device located behind the punch. The wedge-shaped adjustment body is moved up and down to displace the side of the adjustment body back and forth, This displacement movement causes the punch that is in contact with the side to move back and forth. In this case, check whether the punch moves back and forth by the required amount due to the vertical movement of the adjustment body. The reason for this is that the worker was measuring the amount of movement of the tip of the punch with a measuring tool. This adjustment work not only requires considerable skill, but also takes a long time, during which time the machine is This also caused the machine to stop, resulting in a decrease in operating rates.

[0006] Therefore, in order to solve the above-mentioned drawbacks, the present applicant has proposed a vertical motive device for vertically moving the adjusting body. By digitally displaying the movement amount of the mechanism on the display device, the punch can be determined from the displayed value. We proposed a device for adjusting the back and forth position of a punch that allows the amount of back and forth movement to be determined. No. 90542, No. 63-180127). In other words, it does not move up and down, but it rotates automatically. In addition to providing a conventional drive member, a female screw portion is carved in the center of this drive member, and an adjustment mechanism is provided. For chiropractic work, a screw shaft is installed upward, and the upper end of this screw shaft is connected to the female thread of the drive member. By screwing it in, a vertical movement mechanism of the adjustment body is constructed, and a gear is attached to the outer periphery of the drive member. A digital display device is connected to this gear part via a gear mechanism, When rotating the drive member to move the adjustment body up and down to move the punch back and forth, the drive unit By digitally displaying the rotation amount of the material on the display device, the output can be calculated from this digital amount. The amount of back and forth movement of the lever can be determined easily and without the need for special skill. This is something that can be done quickly.

[0007]

[Problem that the idea aims to solve]

However, in the case of the above adjustment device, the vertical movement mechanism itself that moves the adjustment body up and down, and the Backlash that exists in the gear mechanism that connects the drive member of the vertical movement mechanism and the display device Therefore, the amount of back-and-forth movement of the punch determined from the digital value on the display device and the actual amount of punch The actual amount of longitudinal movement did not correspond accurately, and a slight error occurred between the two. Therefore, while reading the digital value displayed on the display device, the adjustment body can be moved up and down while reading the digital value displayed on the display device. Even if the punch is moved back and forth by operating the mechanism, the punch can be moved back and forth by the required amount accurately. However, it is still not sufficient as a punch back-and-forth position adjustment device. There wasn't.

[0008]

[Means to solve the problem]

This invention was made to solve these conventional drawbacks, and its purpose was This is because when operating the vertical movement mechanism to move the adjustment body up and down, the panning of the adjustment body Focus on the point where the side surface on the contact side is displaced back and forth, and measure the amount of back and forth movement of this side surface. The amount of longitudinal movement of the punch measured by the step and determined from the measured value of the measuring means, The punch in a heading forming machine is made so that the actual back and forth movement of the punch corresponds accurately. An object of the present invention is to provide a device for adjusting the longitudinal position of the engine.

[0009] In other words, this idea uses a die fixed to the fuselage and a , installed in the aircraft so as to move forward and backward with respect to the die in front of the die. The rear part is fitted into the ram and the tip protrudes from the front of the ram. A punch disposed on the ram so as to face the die, and the rear end of this punch itself. Or by touching the rear end of the punch via a spacer and moving it up and down. The side surface on the contact side is displaced back and forth, and this displacement causes the punch to move back and forth. a wedge-shaped adjusting body housed within the ram so as to be moved; and a wedge-shaped adjusting body connected to the adjusting body. , so that the adjustment body is moved up and down within the ram by operating it. In the heading forming machine equipped with a vertical movement mechanism installed in the ram, the vertical movement mechanism When the adjustment body moves up and down due to the operation of the mechanism, the side surface of the adjustment body on the punch contact side moves back and forth. The ram is provided with a measuring means for measuring the amount.

0010

[Effect]

With the above configuration, the adjustment body can be moved up or down by operating the vertical movement mechanism. Then, the side surface of the adjusting body on the punch contact side is displaced forward or backward, and this displacement movement The punch is moved back and forth to adjust its back and forth position. and the punch in that case The amount of longitudinal movement is exactly the same as the amount of displacement of the side surface of the adjusting body on the punch contact side, so it cannot be measured. While reading the measured value displayed on the adjustment means, operate the vertical movement mechanism to raise the adjustment body. By moving the punch downward, the punch can be reliably moved back and forth by the required amount. Therefore, punch adjustment work can be done easily and quickly without any special skill required. It turns out.

[0011]

【Example】

Hereinafter, an embodiment of this invention will be described based on the drawings. 1 is the body of the heading molding machine, 2 3 is a die block fixed to the fuselage 1, and 3 is a plurality of die blocks fitted to the die block 2. In A, each die 3 is arranged horizontally at a predetermined interval from the first die to the last die. has been done. 4 is a mechanism in front of the die 3 to move forward and backward with respect to the die 3. A ram installed in a body 1, including a ram body 5 and a punch block 6 fixed to the front of the ram body 5. , further comprising a punch holder 7 fixed to the front surface thereof. 8 faces each die 3 The punches are arranged on the ram 4 so that the rear part of each punch 8 is inside the punch holder 7. The punch is inserted and tightened by the set bolt 9 screwed into the punch holder 7. It is fixed to the punch holder 7, and the tip protrudes from the front surface of the punch holder 7. ing. 10 is located coaxially with the punch 8 at the rear of each punch 8 and connected to the punch 8. This is a spacer that is disposed through the punch block 6 so as to be in contact with the rear end.

0012 11 is recessed in the vertical direction on the front surface of the ram body 5 behind each spacer 10. This allows the vertical hole formed by the groove and the back surface of the punch block 6 to The rear side surface 11a of each vertical hole 11 is inclined forward toward the top. has been done. Reference numeral 12 denotes a wedge-shaped adjustment body installed in each vertical hole 11 so as to be able to move up and down. The slanted side surface 12a abuts on the slanted side surface 11a of the vertical hole, and also contacts the opposite vertical side surface 12b. are arranged so that the rear ends of the spacers 10 are in contact with each other.

[0013] 13 is a vertical movement mechanism, and a driving member is mounted on a base 14 fixed to the upper surface of the ram body 5. 15 is placed rotatably, and a female screw portion is carved in the center of the drive member 15. At 16, the upper part of the screw shaft 17 which is provided to protrude upward from the upper surface of the adjustment body 12 is connected to the base 14. It is screwed through. 18 is a hexagonal column formed at the head of the driving member 15; A tool (not shown) is engaged with this hexagonal column portion 18 to rotate the drive member 15. Therefore, the adjusting body 12 moves up and down along the inclined side surface 11a of the vertical hole 11 via the screw shaft 17. be moved. Due to this vertical movement, the vertical side surface 12b of the adjustment body 12 is displaced back and forth. This displacement causes the punch 8 to be moved back and forth via the spacer 10 to punch the punch. The front and rear positions of the switch 8 are adjusted.

[0014] Reference numeral 19 denotes a measuring means, which is measured as the vertical side surface 12b of the adjusting body 12 is displaced back and forth. A moving element 20 that moves back and forth, and a proximity sensor 21 that detects the amount of movement of this moving element 20 back and forth. The amount of movement of the mover 20 is digitally displayed based on the input signal from the proximity sensor 21. It consists of a display section 22. That is, the mover 20 includes a rod-shaped base 20a and this base. The base portion 20a is formed by a plate-shaped upright portion 20b provided uprightly at the base portion 20a. is housed in the horizontal hole 23 formed in the punch block 6, and the upright piece 20b is housed in the horizontal hole 23 formed in the punch block 6. A hole is formed extending from the hole 23 to the punch block 6 and the base 14 above it. The upright piece 20b is housed in the upright hole 24, and the upper end of the upright piece 20b is placed above the top surface of the base 14. It protrudes upward. This mover 20 has one end of the base 20a and the horizontal hole 2. The other end of the base 20a is connected to the adjustment body 1 by the coil spring 25 inserted between the inner part of the base 20a The adjustment body 12 is biased so as to come into contact with the vertical side surface 12b of the By moving the vertical side surface 12b back and forth, the vertical side surface 12b It is designed to be moved back and forth while making contact with the In addition, the proximity sensor 21 It is attached to the upper surface of the base 14 so as to face the upper end of the upright piece 20b of the mover 20. The amount of movement of the upright piece 20b is detected. In addition, the digital display 22 is attached to the upper surface of the base 14, and is connected to the proximity sensor 21 via a conductive wire 26. The detection signal input from the proximity sensor 21 causes the movable element 20 to The amount of movement of the upright piece 20b is digitally displayed.

[0015] Next, the operation of the above embodiment will be explained below. It is necessary to adjust the front and back position of punch 8. If this occurs, stop the machine, loosen the set bolt 9, and remove the punch 8. The punch holder 7 is brought into a loose state, and then the vertical movement mechanism 13 is driven. The adjusting body 12 is moved up or down by rotating the moving member 15. Then, the adjusting body 12 The slanted side surface 12a of the vertical hole 11 is slid along the slanted side surface 11a of the vertical hole 11, and the slanted side surface 12a of the The side vertical side surface 12b is displaced forward or backward, and this displacement moves the punch. 8 is moved back and forth through the spacer 10 to adjust the front and back position.

[0016] In that case, the amount of back and forth movement of the punch 8 is the displacement movement of the vertical side surface 12b of the adjusting body. is exactly the same as the amount, and as the vertical side surface 12b is displaced, the vertical side surface 12b is Since the base 20a of the mover is also moved while contacting the mover 12b, the By reading the digital value on the display section 22 that displays the amount of movement, the punch 8 can be adjusted. You can know the actual amount of forward and backward movement. Therefore, while reading the digital value, , by operating the vertical movement mechanism 13 to move the adjusting body 12 up and down, the punch 8 is moved. You can reliably move it back and forth by the required amount.

[0017] After adjusting the longitudinal position of the punch 8 in this way, tighten the set bolt 9 again. After that, the punch 8 is fixed to the punch holder 7, and then the machine is restarted to start heading. Continue processing.

[0018] In the above embodiment, the drive member 15 of the vertical movement mechanism 13 cannot be rotated manually. It is configured to move the adjustment body 12 up and down to adjust the front and back position of the punch 8. However, as already proposed by the applicant, a gear portion is provided on the outer periphery of the drive member 15. A gear member fixed to a drive source such as a pulse motor is engaged with this gear part. The driving force of this driving source rotates the driving member 15 to move the adjustment body 12 up and down. It is also possible to adjust the front and back positions of the punch 8 by adjusting the punch 8. In that case, the driving source The drive control is performed based on the digital value of the display section 22, and the pan The punch 8 is also automatically locked and unlocked with respect to the hand holder 7. When configuring and implementing, punch 8 in the required amount without stopping machine operation. Since it is possible to move back and forth accurately, adjustment work can be fully automated. become.

[0019] Further, in the above embodiment, the locking means for the drive member 15 of the vertical movement mechanism 13 is Although not provided on the outer periphery of the drive member 15, as already proposed by the applicant, A rod is formed that forms a gear part and has a gear piece at the tip that meshes with this gear part. The locking means is constructed by providing a mechanism that can freely move forward and backward relative to the gear section, and During operation, the drive member 15 may rotate inadvertently due to vibration etc. and be adjusted to a predetermined position. It may be implemented in such a way as to prevent the punch 8 from being displaced.

[0020] Furthermore, the measuring means 19 is not limited to the above configuration, and in short, the measuring means 19 is If the configuration is to measure the amount of back and forth movement of the straight side surface 12b itself, a known measuring means can be used as appropriate. Just adopt it and implement it.

[0021]

[Effect of the idea]

As explained above, this device is designed to: A measuring means was provided to measure the amount of back and forth movement of the side surface of the adjusting body on the side in contact with the punch. Even if there is backlash in the vertical movement mechanism, it cannot be determined from the measured value of the measuring means. This means that the amount of back-and-forth movement of the punch accurately corresponds to the actual amount of back-and-forth movement of the punch. Ru. Therefore, while reading the measured value of the measuring means, operate the vertical movement mechanism to adjust the adjustment body. By moving the punch up and down, you can reliably move the punch back and forth by the required amount. Therefore, you can easily and quickly adjust the front and rear positions of the punch without requiring any special skill. There are some effects that can be achieved.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view of a punch back-and-forth position adjustment device in a heading forming machine.

FIG. 2 is an enlarged vertical cross-sectional view of the main part of FIG. 1;

FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2;

[Explanation of symbols]

1 Aircraft 3 dies 4 Rum 8 Punch 10 Spacer 12 Adjustment body 13 Vertical movement mechanism 15 Drive member 19 Measurement means

Claims (1)

[Scope of utility model registration request] Claims: 1. A die fixed to a machine body; a ram disposed in the machine body in front of the die so as to move forward and backward with respect to the die; A punch disposed on the ram so as to protrude further and face the die is brought into contact with the rear end of the punch itself or through a spacer, and is moved up and down. A wedge-shaped adjustment body is installed inside the ram so that the side surface on the contact side is displaced back and forth, and the punch is moved back and forth by this displacement movement, and the wedge-shaped adjustment body is connected to this adjustment body and operated. In a heading forming machine equipped with a vertical movement mechanism installed on the ram so that the adjustment body is moved up and down within the ram, when the adjustment body is moved up and down by the operation of the vertical movement mechanism, the adjustment is performed. A device for adjusting the longitudinal position of a punch in a heading forming machine, wherein the ram is provided with measuring means for measuring the amount of longitudinal movement of the side surface of the punch contacting side of the body.