KR100687982B1 - Reciprocating mechanism for a forging machine - Google Patents

Abstract

According to the invention, the reciprocating mechanism comprises a seat body 2, a longitudinal first sliding member 23 and a second sliding member 24. The seat body 2 includes a longitudinal first guide groove 211, a second guide groove 221 crossing the first guide groove 211, a first guide groove 211 and a second guide groove 221. The space 224 which intersects the intersection part is provided in the inside. The first sliding member 23 is slidably and reciprocally disposed in the first guide groove 211 across the intersecting space 224 and extends in the longitudinal direction of the first sliding member 23. The direction cam member 234 is provided. The second sliding member 24 is slidably mounted on the seat body 2 along the direction of the second guide groove 221 and extends into a space intersecting to contact the cam member 234. Reciprocate 240. The cam follower 240 is movable back and forth along the second guide groove 221 when the cam member 234 reciprocates along the first guide groove 211, whereby the second guide groove 221 The second sliding member 24 is reciprocated along

Description

Reciprocating mechanism for forging machine {RECIPROCATING MECHANISM FOR A FORGING MACHINE}             

1 is a schematic front view of a portion of a conventional forging machine,

Figure 2 is a schematic perspective view of a conventional reciprocating mechanism used in the conventional forging machine of Figure 1,

3 is a perspective view of a preferred embodiment of the reciprocating mechanism for the forging machine according to the present invention;

4 is an exploded perspective view of a preferred embodiment of the reciprocating mechanism according to the present invention;

5 is a cross-sectional view of a preferred embodiment of the reciprocating mechanism according to the present invention;

FIG. 6 is a cross-sectional view taken along line 6-6 of FIG. 5;

7 is an enlarged schematic view of a shaft of a preferred embodiment of the reciprocating mechanism of the present invention;

8 is an enlarged schematic diagram showing how the shaft of FIG. 7 operates in a preferred embodiment of the reciprocating mechanism according to the present invention;

9 is an exploded perspective view of the first and second sliding members of a preferred embodiment of the reciprocating mechanism according to the invention,

Fig. 10 is a schematic diagram showing how the workpiece handling member on the swing plate of the forging machine moves by the preferred embodiment of the reciprocating mechanism according to the present invention.

<Explanation of symbols for main parts of drawing>

2: sheet body 21: first guide sheet

22: 2nd guide sheet 23: 1st sliding member

24: second sliding member 25: biasing unit

211: first guide groove 212: positioning home

221: Second guide groove 224: Intersecting space

234: longitudinal cam member 240: cam follower

247: thrust roller 248: first shaft

249: contact roller 251: fixed support

252: push rod 254: cantilever arm

2321, 2322: longitudinal side 2323, 2324: transverse end

2325: cam support surface 2341: first section

2342: Second section 2343: Third section

2491: cloud side

The present invention relates to a reciprocating mechanism for a forging machine, and more particularly, to a reciprocating mechanism for transmitting a driving force without oscillating the swing mechanism of the forging machine.

Referring to FIG. 1, a conventional forging machine 1 is shown, the forging machine 1 being mounted on a machine frame 11, a plurality of female dies 12 mounted on the machine frame 11, a female die. A support member 13 mounted on the machine frame 11 and a swing mechanism 15 movably coupled to the support member 13 are included. The swing mechanism 15 includes a swing plate 14 and a plurality of workpiece gripping members 151 operatively coupled to the swing plate 14. The swing plate 14 is coupled to a conventional reciprocating mechanism to reciprocate in the left and right directions of FIG. 1 via a horizontal linkage mechanism 18. During the reciprocating movement of the swing plate 14, the workpiece gripping member 151 sequentially grips and feeds the blanks to the female die to perform a sequential punching process.

Referring to FIG. 2, a conventional reciprocating mechanism includes an inverted Y-shaped rocker arm 17 having an upper end pivotally coupled to a horizontal linkage mechanism 18 and a cam member 16 to rotate. It includes two separate lower ends 172 which selectively engage the cam member 16 when driven. The rocker arm 17 is swinged to reciprocate the swing plate 14 via a horizontal linkage mechanism 18.                         

A disadvantage of the conventional reciprocating mechanism is that the torque applied to the horizontal linkage mechanism 18 is the swing plate 14 at two dead points of each stroke of the horizontal linkage mechanism 18 and the rocker arm 17. As opposed to the inertia of, the upper end 171 of the rocker arm 17 bends the dead center end and vibrates. Vibration of the rocker arm 17 is transmitted to the swing plate 14 via a horizontal linkage mechanism, thereby causing vibration or shaking of the swing plate 14. Vibration or shaking of the swing plate 14 has an adverse effect on the sequential punching process.

It is an object of the present invention to provide a reciprocating mechanism for transmitting a driving force without swinging the swing mechanism of the forging machine.

According to the invention, the reciprocating mechanism comprises a seat body, a longitudinal first sliding member and a second sliding member. The sheet main body has a longitudinally spaced first guide groove, a second guide groove intersecting the first guide groove, and a space intersecting an intersection of the first guide groove and the second guide groove. The first sliding member is slidably and reciprocally disposed in the first guide groove across the intersecting space and has a longitudinal cam member extending longitudinally of the first sliding member. The second sliding member is slidably mounted on the seat body along the direction of the second guide groove and engages with a cam follower extending into the space intersecting to contact the cam member. The cam follower is movable back and forth along the second guide groove when the cam member reciprocates along the first guide groove, thereby moving the second slide member reciprocating along the second guide groove.

Other features and advantages of the invention are clearly described in the following detailed description of the preferred embodiments of the invention with reference to the accompanying drawings.

3 and 4, a preferred embodiment of the reciprocating mechanism according to the invention is shown, which mechanism is the seat body 2, the longitudinal first sliding member 23 and the second sliding member 24. It includes.

As shown, the sheet body 2 comprises a longitudinal first guide sheet 21 and a transverse second guide sheet 22. The first guide sheet 21 has an intermediate part having a positioning groove 212 extending laterally of the first guide sheet 21 for positioning the second guide sheet 22. The first guide groove 211 having a T-shaped cross section extends in the longitudinal direction of the first guide sheet 21 and passes through the second guide sheet 22. The T-shaped second guide groove 221 having an inverted cross section is formed on the upper side of the second guide sheet 22 and is passed through the first guide groove 211. The first and second guide grooves 211 and 221 cross each other to form a space 224 that intersects the intersection of the first and second guide grooves 211 and 221. The first sliding member 23 is slidably and reciprocally movable in the first guide groove 211 across the space 224 intersecting along the direction as indicated by the arrow "X" in FIG. 3. Is displaced. The second sliding member 24 is slidably mounted in the second guide groove 221 along the direction of the second guide groove 221 as indicated by the arrow "Y" in FIGS. 3 and 9. . The first sliding member 23 reciprocates under the second sliding member 24 and has a longitudinal cam member 234 extending in the longitudinal direction of the first sliding member 23. The second sliding member 24 is coupled to the cam follower 240, which will be described later in more detail as shown in FIG. 5 to intersect the intersecting space to contact the cam member 234 ( 224. The cam follower 240 is movable back and forth along the second guide groove 221 when the cam member 234 reciprocates along the first guide groove 211, thereby allowing the second guide groove 221. Along which the second sliding member 24 is reciprocally moved.

4 to 6, the first sliding member 23 further includes an elongated body portion 231 and a plate member 232 fixed to the cavity 233 formed in the body portion 231. The body portion 231 has a connecting member 20, which is coupled to its outer end, which can then be coupled to a cam mechanism (not shown). The plate member 232 has two opposing substantially straight longitudinal sides 2321 and 2322 extending along the direction "X" of the first guide groove 211, and the longitudinal sides 2321 and 2322. Two opposing transverse ends 2323 and 2324 intersecting the and a cam support surface 2325 between the longitudinal side surfaces 2321 and 2322. The cam member 234 protrudes from a cam support surface 2325 in the form of a bent ridge, the ridge extending longitudinally adjacent to one of the longitudinal sides 2321 and one of the lateral ends 2323. A first section 2341, a second section 2342 extending longitudinally adjacent to the other one 2322 of the longitudinal side and the other one 2324 of the lateral end, curved and first section 2341. A third section 2343 that is gradually inclined from to a second section 2342.

The cam follower 240 includes a contact roller 249 and a trust roller 247, each of which is mounted on the bottom side of the second slide member 24 adjacent to the first slide member 23, It extends into the intersecting space 224 adjacent to the cam member 234. Contact roller 249 has a rolling surface 2491 that contacts one side of cam member 234. The thrust roller 247 is in rolling contact with the other side of the cam member 234 opposite the contact roller 249. Contact roller 249 is biased to press cam member 234 toward thrust roller 247.

The second sliding member 24 further includes a rotatably mounted first shaft 248. The first shaft 248 has a first component 2481 extending into the contact roller 249 and a second component 2482 extending out of the contact roller 249 as shown in FIG. 6. The first component 2481 is eccentric to the second component 2482 to position the contact roller 249 in a position eccentric to the second component 2482 as shown in FIG. 7. The second sliding member 24 further includes a push rod 252, which push rod has one end 2521 connected to the second component 2482 of the first shaft 248, and the first shaft 248. Opposite ends 2522 extending radially outward from the. The link connecting plate 240 is connected to the outer end of the second sliding member 24.

The biasing unit 25 is mounted on the second sliding member 24 to bias the opposite end 2522 of the push rod 252 so that the first shaft 248 is rotated in one direction, and FIG. As shown well at 8, the contact roller 249 is eccentrically moved towards the cam member 234. The biasing unit 25 is a fixed support 251 mounted on the upper side of the second sliding member 24, and extends from the fixed support 251 to the push rod 252 and the opposite end of the push rod 252 Pressurizes push rod 252 to pivot cantilever arm 254 passed through 2522 and first shaft 248 to move contact roller 249 towards cam member 234 as described above. And a coiled spring 253 sleeveed on the cantilever arm 254. In this way, although the contact roller 249 wears out after use for a period of time, the contact roller 249 is directed toward the cam member 234 during the reciprocating movement of the cam member 234 along the direction ("X"). It can be in constant contact, ensuring a secure engagement between the contact roller 249, the thrust roller 247 and the cam member 234. The second sliding member 24 has two through holes 245 and 244 extending from the top side to the bottom side. The first shaft 248 passes through one of the through holes 245. The thrust roller 247 has a second shaft 246 extending through the other one of the through holes 244. The second shaft 246 has an upper end 2241 fixed to the upper side of the second sliding member 24 and a lower end 2246 rotatably coupled to the thrust roller 247 via the bearing member 242. It is provided. The contact roller 249 is rotatably coupled to the first shaft 248 via a bearing member 243.

Referring to FIG. 9, driving force is applied to the first sliding member 23 via the connecting member 20 by a cam mechanism (not shown) to reciprocate the first sliding member 23 in the direction "X". When applied, the second sliding member 24 is reciprocated in the direction ("Y") to drive the swing plate 30 of the forging machine via the link connecting plate 240 as shown in FIG. Can be. It can be seen that the force transmission directions "X" and "Y" in the reciprocating mechanism of the present invention are perpendicular to each other on the horizontal plane. As such, the vibration transmitted to the first sliding member 23 along the direction "X" is not transmitted to the second sliding member 24, thereby preventing vibration or shaking of the swing plate 30. have. Therefore, it meets the objective of this invention.

While the invention has been described in terms of what is considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited by the disclosed embodiments and is intended to cover various arrangements that are within the spirit and scope of the broadest interpretation and equivalent arrangement. Should be.

According to the present invention, although the contact rollers wear down after use during a period of time, the contact rollers can be constantly contacted toward the cam member during the reciprocating movement of the cam member along the direction, so that between the contact roller, the thrust roller and the cam member It ensures a secure coupling of the vibration, and the vibration transmitted to the first sliding member in one direction is not transmitted to the second sliding member, thereby having an effect that can prevent the vibration or shaking of the swing plate.

Claims (7)

In the reciprocating mechanism for forging machine, A space intersecting a longitudinal first guide groove 211, a second guide groove 221 intersecting the first guide groove 211, and an intersection of the first and second guide grooves 211 and 221. A sheet main body 2 including 224 therein, A longitudinal cam member 234 slidably and reciprocally disposed in the first guide groove 211 across the intersecting space 224 and extending in the longitudinal direction of the first sliding member 23; The longitudinal first sliding member 23 provided; Cam follower 240 slidably mounted on the seat body 2 along the direction of the second guide groove 221 and extending into the intersecting space 224 to contact the cam member 234. A second sliding member (24) associated with it; The cam follower 240 is movable along and along the second guide groove 221 when the cam member 234 reciprocates along the first guide groove 211, whereby the second To reciprocally move the second sliding member 24 along the guide groove 221. Reciprocating mechanism for forging machine. The method of claim 1, The first sliding member 23 has two opposing substantially straight longitudinal sides 2321 and 2322 extending along the direction of the first guide groove 211 and the longitudinal sides 2321 and 2322. Two opposite transverse ends 2323 and 2324 intersecting and a cam support surface 2325 between the longitudinal side surfaces 2321 and 2322, wherein the cam member 234 has a cam support surface in the form of a curved ridge ( Protruding from 2325, the ridge extending in a longitudinal direction adjacent one of the longitudinal sides 2321 and one of the transverse ends 2323, and the other of the longitudinal sides ( 2321 and a second section 2342 extending longitudinally adjacent to the other one 2323 of the transverse ends, and a third curved and gradually inclined from first section 2341 to second section 2342. Section 2343, the cam follower 240 includes a contact roller 249, the contact roller being the second Mounted on the main member 24 and extending into the intersecting space 24 adjacent the cam member 234, the contact roller 249 defines a rolling surface 2491 in contact with the cam member 234. Equipped Reciprocating mechanism for forging machine. The method of claim 2, The sheet body 2 comprises a longitudinal first guide sheet 21 and a transverse second guide sheet 22, the first guide sheet 21 for positioning the second guide sheet 22. And an intermediate part having a positioning groove 212 extending laterally of the first guide sheet 21, wherein the first guide groove 211 extends in the longitudinal direction of the first guide sheet 21. Extends and passes through the second guide sheet 22, the second guide groove 221 is formed in the second guide sheet 22 and passed through the first guide groove 211, the first guide groove 211. 2 The slide member 24 is slidably mounted into the second guide groove 221, and the first slide member 23 is the first guide groove 211 under the second slide member 24. Slidably mounted inside Reciprocating mechanism for forging machine. The method of claim 2, The cam follower 240 further includes a thrust roller 247, the thrust roller 247 mounted on the second sliding member 24 and facing the contact roller 249. In contact with one side of 234, the contact roller 249 is biased to press the cam member 234 towards the trust roller 247. Reciprocating mechanism for forging machine. The method of claim 4, wherein The second sliding member 24 further includes a first shaft 248 rotatably mounted thereon, wherein the first shaft 248 extends into the contact roller 249. And a second component 2482 extending out of the contact roller 249, wherein the first component 2481 positions the contact roller 249 at a position eccentric to the second component 2482. Eccentric to the second component 2482, the second sliding member 24 radially from one end 2521 and the first shaft 248 coupled to the second component 2482. The push rod 252 extending outward and the opposite end of the push rod such that the first shaft 248 is rotated in one direction and eccentrically moves the contact roller 249 towards the cam member 234 Further biasing unit 25 mounted on the second sliding member 24 to eccentric 2522. Containing Reciprocating mechanism for forging machine. The method of claim 5, wherein The biasing unit 25 extends from the fixed support 251 to the push rod 252 and is mounted on the second sliding member 24. A cantilever arm 254 passed through the opposing end 2522 and a coiled spring 253 sleeveed on the cantilever arm 254 to urge the push rod 252. Reciprocating mechanism for forging machine. The method of claim 6, The second sliding member 24 has a bottom side adjacent to the first sliding member 23, an upper side opposite the bottom side, and two through holes 245 extending from the upper side to the bottom side; 244, wherein the contact and thrust rollers 249, 247 are disposed adjacent the bottom side, and the first shaft 248 extends through one of the through holes 245, the thrust roller 247 extends through the other one of the through holes 244, and the biasing unit 25 is disposed on the upper side. Reciprocating mechanism for forging machine.

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