KR950006970Y1 - Klamp driving unit for a trimming machine - Google Patents

Abstract

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Description

Clamp drive for trimmer

1 is a schematic side view of a trimmer showing an embodiment of the present invention.

Figure 2 is a perspective view of the drive unit of the present invention.

3a, b is a side view of the working state of the present invention.

* Explanation of symbols for main parts of the drawings

1: Trimmer 2: Clamp Drive

3: Crankshaft 4, 4 ': Bevel Gear

5: Circular shaft 6, 6 ': Bearing housing

7: frame 7 ': through hole

8: operation cam 8a: small diameter part

8b: large neck 8c: urinary inlet

9: clamp 9 ': connecting piece

10: control lever 11: push rod

12, 12 ': shaft pin 13, 13': bracket

14, 14 ': bearing 15: adjusting bolt

16: bush 17: between clamps

18: leaf spring

The present invention relates to a driving device of a clamp that feeds a clamp to a trimming part through a feed guide in a trimming MC, and in particular, a high-speed work is possible to improve production efficiency.

Normally, the bolt semi-finished product in which the head is molded on the header MC is molded in the hexagon by the trimmer. At this time, the bolt semi-finished product put on the feeding hopper is fed one by one on the slide guide along the inclined guide and then fed to the trimming part by clamp again. The clamp is angular movement by the movement of the bolt semi-finished product, which is not only a high mechanical friction noise, but also impossible to high-speed work, even lacking the accuracy of the work, the present invention can eliminate the above problems The present invention discloses an improved clamp drive device. The construction, working effects, etc. of the present invention together with the accompanying drawings will be described in detail.

FIG. 1 is a schematic side view of a trimming machine 1 to which an embodiment of the present invention is applied, and FIG. 2 is a perspective view showing an extract of the clamp driving unit 2 of the present invention. lets do it.

The driving shaft 5 connected to the bevel gears 4 and 4 'at one end of the crankshaft 3 is supported on the frame 7 by the bearing housings 6 and 6' to be rotatable. On the other end of (5), a small diameter portion 8a and a large diameter portion 8b and an actuating cam 8 each having a concave indentation portion 8c formed on the large diameter portion 8b are pivotally fixed so that the clamp 9 is angled. The movement cam 8 and the clamp 9 is provided between the center adjusting function and the cam and the connecting medium, the control lever 10 and the push rod 11, respectively, in connection with each other.

That is, as shown clearly on the side view of the operating state of FIG. 3, the control lever 10 is installed to be angularly movable on the bracket 13 fixed on the frame 7 by the shaft pin 12, and the control lever ( 10, the outer peripheral surface is connected to the working cam (8) and the other outer peripheral surface is connected to the connecting means such as a bearing (14), which is connected to the push rod 11, the other end is installed so that the center of the clamp (9) The adjusting bolt 15 can be screwed properly can be adjusted.

The push rod 11, which is connected to the outer peripheral surface of the bearing 14 of the control lever 10 and performs a straight reciprocating motion from side to side, places a bush 16 or the like on the through hole 7 ′ penetrated on the frame 7. It is installed through the pipe, the shape is made of a rough (L) shape.

On the other end of the push rod 11, that is, on the end portion that is in contact with the connecting piece 9 'of the clamp 9, the bearing 14 is also rotatably provided.

The clamp 9 is rotatably mounted as a shaft pin 12 'on a bracket 13' provided at the upper end of the frame 7, and a known spring between the clamps 17 is formed at the tip of the clamp 9 by a leaf spring. (18) is provided so that pressure clamping is possible.

In the figure, 19 is an input hopper, 20 is an inclined guide, 21 is a slide guide, and 22 is a bolt semifinished product.

According to the present invention configured as described above, when the bolt semi-finished product 22 put on the feeding hopper 19 is fed one by one on the slide guide 21 along the inclined guide 20, the clamp interval 17 of the clamp 9 is The bolt semi-finished product 22 is clamped one by one to the trimming part, and the operation of the clamp 9 will be described in more detail.

That is, since the actuating cam 8 pivots on the driving shaft 5 which is vertically driven by the crankshaft 3 and the bevel gears 4 and 4 ', the bearing 14 on the adjustment lever 10 connected thereto. The push rod 11 connected to the other side reciprocates from side to side. When the bearing 14 is in contact with the small diameter portion 8a of the actuating cam 8, as shown in FIG. Positioned to the right to maintain the clamp 9 is lowered, conversely the push rod 11 to the left when the bearing 14 is connected to the large diameter portion (8b) of the operation cam (8). Thus, the clamp 9 is positioned to the right as shown in FIG. 3 (b) to maintain the clamp 9 lowered, and conversely, the bearing 14 has a large diameter portion of the operation cam 8 ( In the case of connecting 8b), the push rod 11 is left in the battery position so that the clamp 9 is maintained in an elevated state by angular movement as shown in FIG. Of course, while the clip 9 is lowered in an elevated state as in a known operation, the clamp member 17 clamps the bolt semi-finished product 22 on the slide guide 21 and is fed to the trimming part.

In order to smoothly level the clamping of the bolt semi-finished product 22 between the clamps 17, a recess 8c is formed in the middle of the large diameter portion 8b of the operation cam 8 of the present invention. When the blast furnace bearing 14 engages the recess 8c, the clamp 9 temporarily descends and clamps the bolt semi-finished product 22, and then maintains an elevated state while the slide guide 21 moves backward. When it is completed, the descending is finished, the bolt semi-finished product 22 is completed by the trimming part.

As described in detail above, the present invention is a control lever capable of connecting and clamping the clamping operation of the clamp on an operation cam that rotates at an appropriate rotational speed by deviating from the manner in which the clamp performs the angular movement by the angular movement of the conventional operating lever. And by feeding to the trimming part of the bolt half-finished product via the push-roof, it is possible to minimize the mechanical noise, as well as to achieve high-speed rotation and double the productivity is a devised devised great effect.

The scope of the technology to be protected in the present invention will be covered by the following appended claims for utility model registration, but similar modifications such as simply modifying materials, shapes, etc. will also be included in the present invention.

Claims (1)

In the trimmer 1, in configuring a clamp driving device for clamping and feeding the bolt semi-finished product 22 to the trimming part, the driving shaft 5 connected to one end of the clamp shaft 3 by bevel gears 4 and 4 '. ) Is arranged in a bearing housing (6, 6 ') on one side of the frame (7); A shaft inserting and fixing an actuating cam 8 having a small diameter portion 8a, a large diameter portion 8b and a concave inlet portion 8c on one side of the circular shaft 5; An angular movement of the control lever 10 on which the bearing 14 is pivotally pivoted on the actuating cam 8 is installed on the bracket 13 by the shaft pin 12; A push rod (11) connected to the other side of the bearing (14) by a bush (16) on the through hole (7 ') on the frame (7) as a bush for reciprocating movement; At the other end of the push rod 11, a bearing 14 'is pivotally pivoted with the joint piece 9' of the clamp 9; The clamp 9 is configured to be able to move up and down as an axial pin 12 'on a bracket 13' fixed on the frame 7; A clamp driving device for a trimmer, characterized in that the clamp section (17) is mounted at the tip of the clamp (9).