Anti-collision device for reverse movement of sliding block of friction press

Abstract

An anti-collision device for reverse movement of a sliding block of a friction press comprises a machine body, the sliding block installed on a guide rail of the machine body, a screw rod connected with the sliding block and driving the sliding block to move up and down, a copper nut spirally connected with the screw rod and fixed in a step inner hole of the machine body, and a flywheel fixedly connected with the top end of the screw rod. The two supporting arms are symmetrically installed on the side face of the upper portion of the machine body, the left control system and the right control system are installed on the top face of the left supporting arm and the top face of the right supporting arm respectively, the left friction disc is connected with the left control system and driven by the left control system, the right friction disc is connected with the right control system and driven by the right control system, and the main shaft is connected with the left friction disc and the right friction disc. The inductive switch plate is installed on the sliding block, the reverse stroke inductive switch is close to and matched with the inductive switch plate, can generate inductive signals and is installed on the machine body, and the flywheel rim enclasping braking system is installed on the machine body. The reverse braking function is achieved, operation is safe and reliable, and sliding block return stroke collision prevention is achieved. The device can be widely applied to the friction press.

Description

Technical Field

[0001] The invention relates to a friction press slide block reverse motion anti-collision device, which can be widely used in friction presses. Background Art

[0002] After the slide of a friction press completes the workpiece impact, it then returns to its upper limit. However, due to the influence of inertia and unstable braking force control during the upward return stroke, the slide can easily fail to stop at the upper limit and strike the press body, causing damage to the press equipment. Summary of the Invention

[0003] The object of the present invention is to provide a friction press slide reverse motion anti-collision device which has a reverse braking effect, operates safely and reliably, and prevents the slide from returning to collision.

[0004] In order to achieve the above-mentioned purpose, the friction press slider reverse motion anti-collision device of the present invention includes a fuselage, a slider installed on the fuselage guide rail, a screw connected to the slider and driving the slider to move up and down, a copper nut spirally connected to the screw and fixed to the inner hole of the fuselage step, a flywheel fixedly connected to the top of the screw, two arms symmetrically installed on the upper side of the fuselage, a left control system and a right control system installed on the top surfaces of the left arm and the right arm respectively, a left friction disc connected to the left control system and driven thereby, a right friction disc connected to the right control system and driven thereby, a main shaft connected to the left friction disc and the right friction disc, an induction switch plate installed on the slider, a reverse stroke induction switch installed on the fuselage that closely cooperates with the induction switch plate to generate an induction signal, and a flywheel rim clamping brake system installed on the fuselage.

[0005] The invention relates to a friction press slide reverse motion anti-collision device, wherein the induction switch plate and the reverse stroke induction switch constitute a non-contact proximity induction switch.

[0006] The anti-collision device for reverse motion of the slide block of the friction press of the present invention has the following working principles:

[0007] (1) The motor drives two coaxial friction discs that can move axially back and forth through a pulley, alternately pressing against the flywheel, causing it to rotate forward and reverse, and pushing the slider up and down through a screw connected to the flywheel. When the slider moves downward to contact the workpiece, the flywheel is forced to slow down to a complete stop. The kinetic energy stored in the rotating flywheel is converted into impact energy, which strikes the workpiece and forms it into shape.

[0008] (2) The left friction disc and the right friction disc rotate coaxially and continuously under the drive of the motor. As the friction disc rotates, the left control system pushes the left friction disc to the right, pressing the flywheel and driving the flywheel to rotate clockwise. The slider moves downward through the screw and copper nut screw pair to hit the workpiece. After the work is completed, the right control system pushes the right friction disc to the left, pressing the flywheel and driving the flywheel to rotate counterclockwise, driving the slider to move upward. When the slider approaches the upper limit position, the induction switch plate installed on the slider approaches the reverse stroke induction switch installed on the fuselage, sending an electrical control induction signal, controlling the left control system to push the left friction disc to the right, and the left friction disc presses the flywheel again. After pressing the flywheel, it instantly disengages the flywheel. Through the instantaneous reverse movement, a reverse braking effect is achieved, thereby preventing the slider from hitting the fuselage. Therefore, the operation is safe and reliable, and the slider is anti-collision during the return stroke. Finally, the flywheel is clamped by the flywheel rim clamping brake system, and the slider stops at the upper limit position and stops.

[0009] The friction press slide's reverse motion anti-collision device, according to the present invention, adjusts the proximity sensing position of the induction switch plate and the reverse stroke induction switch. When the slide approaches the upper limit position, it controls the slide's reverse motion to prevent the slide from colliding with the machine body. Therefore, the operation is safe and reliable, and the slide's return stroke is anti-collision.

[0010] In summary, the friction press slider reverse motion anti-collision device of the present invention plays a reverse braking role, operates safely and reliably, and prevents the slider from returning to collision. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments thereof.

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 yes Figure 1 Top view of . DETAILED DESCRIPTION

[0014] The anti-collision device for the reverse motion of the slider of a friction press of the present invention includes a fuselage 1, a slider 2 installed on the guide rail of the fuselage, a screw 3 connected to the slider and driving the slider to move up and down, a copper nut 4 spirally connected to the screw and fixed to the inner hole of the fuselage step, a flywheel 5 fixedly connected to the top of the screw, two support arms 6 symmetrically installed on the upper side of the fuselage, a left control system 7 and a right control system 8 installed on the top surfaces of the left support arm and the right support arm respectively, a left friction disc 9 connected to the left control system and driven thereby, a right friction disc 10 connected to the right control system and driven thereby, a main shaft 11 connected to the left friction disc and the right friction disc, an induction switch plate 12 installed on the slider, a reverse stroke induction switch 13 installed on the fuselage and closely cooperating with the induction switch plate to generate an induction signal, and a flywheel rim clamping brake system 14 installed on the fuselage.

[0015] The invention relates to a friction press slide reverse motion anti-collision device, wherein the induction switch plate and the reverse stroke induction switch constitute a non-contact proximity induction switch.

[0016] The anti-collision device for reverse motion of the slide block of the friction press of the present invention is Figure 1 In order to make the structure clear, the flywheel rim holding brake system structure is omitted. Figure 2 In the figure, the flywheel rotates clockwise in direction a and counterclockwise in direction b.

[0017] The friction press slider reverse motion anti-collision device of the present invention is only described above as a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed as above in the preferred embodiment, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent replacements and improvements made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A friction press slide reverse motion anti-collision device, characterized in that: It includes a fuselage, a slider installed on the guide rail of the fuselage, a screw connected to the slider and driving the slider to move up and down, a copper nut spirally connected to the screw and fixed to the inner hole of the fuselage step, a flywheel fixedly connected to the top of the screw, two arms symmetrically installed on the upper side of the fuselage, a left control system and a right control system installed on the top surfaces of the left arm and the right arm respectively, a left friction disc connected to the left control system and driven by it, a right friction disc connected to the right control system and driven by it, a main shaft connected to the left friction disc and the right friction disc, an induction switch plate installed on the slider, a reverse travel induction switch installed on the fuselage and capable of generating an induction signal by close cooperation with the induction switch plate, and a flywheel rim clamping brake system installed on the fuselage.

2. The anti-collision device for the reverse motion of the slide of the friction press according to claim 1 is characterized in that: The inductive switch plate and the reverse travel inductive switch constitute a non-contact proximity inductive switch.

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