JPS6121129Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a crimping device for assembling a pin rack by crimping both ends of a pin whose ends are inserted into a parallel rod, and fixing the pin to the parallel rod.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a pin crimping device that can obtain a large crimping force with a small-output hydraulic device and that transmits less vibration due to crimping impact to the frame body.

To explain an example of the implementation of the present invention with reference to the drawings, FIG.
However, a delivery roller conveyor 3 is provided on the opposite side. In the pin rack R, both ends of the pin P are inserted into the parallel rod B, and both ends are placed on the feeding roller conveyor 2 in an unlatched state, and while passing through the crimping device 1, both ends of the pin P are crimped. It is then fixed to a parallel rod B, and sent out on a delivery roller conveyor 3 in a completed state.

The crimping device 1 has a pin rack R for the distance between the pins P.
an intermittent feeding means 4 for intermittently feeding the pin rack, and a pressing means 5 for fixing the pin rack in a fixed position during the crimping process;
and crimping means 6 for crimping both ends of the pin P at the same time.

The feeding means 4 is provided on the feeding side of the device, and includes a pair of hydraulic machines 8 fixed horizontally on the frame 7 on both sides of the pin rack R to be fed in parallel thereto; A rotary lever 10 has one end pivoted to the piston rod 9 facing the feeding side of the pin rack R, and a rotary lever 10 is installed at the tip of the rotary lever 10 so as to be engaged with the pin P from above. It consists of a hook 11. When the piston rod 9 of the hydraulic device 8 is pushed out, the hook 1
The inclined side 12 of the lever 10 comes into contact with the front pin P and slides up while rotating the lever 10 upward, and then falls further into the gap with the front pin P and engages with the pin P, thereby locking the piston rod. 9 is attracted and the pin rack R is successively and intermittently pulled forward.

The crimping means 6 has a press mold 13 provided coaxially with the pin P of the pin rack, facing both ends thereof, and capable of moving forward and backward toward the pin P; A pair of opposing arms 1 are pivotally attached to the frame 7 at an intermediate portion by a shaft 25 so as to push the press mold 13 and project the tips inward toward the pin P when rotated.
4, and a hydraulic device 15 installed between the lower ends of these arms. And press mold 13
are cylindrical holders 1 fixed to the frame 7, respectively.
A flange 18 is inserted into the arm 6 via a push spring 17 so that it can be restored outwardly, and a flange 18 with a spherical end surface is provided at the rear end. The adjustment bolt 1 is provided with an adjustment bolt 19 screwed into the adjustment bolt 1.
The tip facing the rear end of the press mold 13 of No. 9 is formed into a spherical shape, and the tip of the adjusting bolt 19 that moves circularly and the press mold 13 that moves horizontally and linearly are brought into sliding contact with each other without resistance through spherical contact. It is like that.

The presser means 5 includes a hydraulic device 21 fixed vertically to an upright frame 20, and a presser metal fitting 23 fixed to the piston rod 22 of the hydraulic device 21 so that its lower end faces onto the pin P of the pin rack located between the press molds 13. The upper rod part of this presser metal fitting 23 is a cylindrical guide 2 fixed to the upright frame 20.
4, and thereby the presser metal fitting 23 is guided in its vertical vertical movement, and is lowered when the piston rod 22 is extended to press the pin P from above.

Next, to explain the operation of this crimping device 1, the unfinished pin rack R is transferred to the feeding roller conveyor 2.
When the pin P is sent between the press molds 13, the presser metal fitting 23 is lowered onto the pin P by the hydraulic device 21 to press it, and the hydraulic device 15 moves the presser metal fitting 23 through the arm 14. press mold 1
3 are pushed inward from each other, and both ends of the pin P are caulked. When this process is completed, the presser metal fitting 23
Then, the press mold 13 is restored, and then, due to the extension of the piston rod 9 of the hydraulic machine 8, the hook 11 moves in the opposite direction and hooks on the pin P. The piston rod 9 is sucked and the pin rack R is moved to the next position that has not yet been crimped. The pin P is pulled out until it is located between the press molds 13. In this way, the pin rack R is fed intermittently and the pins P are crimped one after another. Note that the order of operation of each part is appropriately controlled by a limit switch or the like.

The crimping device according to the present invention configured in this way differs from the structure in which the press mold 13 is directly attached to the arm 14 as shown in FIG. Since the press mold 1 for both ends of the pin P
Since the pressing force 3 is applied in a straight line, an even caulking condition can be obtained, and since the impact caused by the collision between the press die 13 and the pin P is not directly transmitted to the frame, there are advantages such as less vibration and durability for long-term use. .

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention; Fig. 1 is a front view, Fig. 2 is a plan view, Fig. 3 is a partially enlarged side view, and Fig. 4 is a partially side view showing another example. It is a diagram. DESCRIPTION OF SYMBOLS 1... Crimping device, 4... Feeding means, 6... Crimping means, 13... Press mold, 14... Arm,
15...Hydraulic device, 17...Press spring, 19...Adjustment bolt, 25...Shaft.

Claims (1)

[Claims for Utility Model Registration] (1) A device for caulking both ends of a pin of a pin rack and fixing it to a parallel rod, the tip of which is opposed to both ends of the pin of a pin rack that is moved intermittently according to the distance between the pins, It is installed with the axis aligned with this,
and at least a pair of press dies, each of which moves toward both ends of the pin rack and is provided with an automatic restoring force, and abuts against the rear ends of these press dies to push them toward both ends of the pin. One end of each is positioned, the middle part is pivotally supported by the main body,
A pin crimping device for a pin rack having a pair of opposing arms between which a hydraulic device is inserted between the other ends to expand the range. (2) A utility model in which the press molds are attached to the main body via holders each holding a spring, and at least one of the rear end of the press mold and the contact portion of the arm with the press mold is formed into a curved surface. A pin crimping device for a pin rack according to claim 1.