Polishing machine for relay contact processing

Abstract

The utility model discloses a polishing machine for relay contact processing, which comprises a base, a sliding seat is arranged at the top of the base, uniformly distributed placing grooves are arranged on the outer wall of the top of the sliding seat, metal sheets are arranged in the placing grooves, two support plates are fixed on the outer wall of the top of the base, and a top plate is fixed at the top ends of the support plates. A servo electric cylinder is fixed to the outer wall of the top of the top plate, an output shaft of the servo electric cylinder penetrates through the top plate to be fixedly provided with a mounting frame, an electric roller and a driven roller are arranged in the mounting frame, and an abrasive belt is in transmission connection between the electric roller and the driven roller and located at the top of the sliding base. The electric roller drives the abrasive belt and the driven roller to rotate, so that the abrasive belt can polish contacts on a plurality of metal sheets at the bottom at the same time, oxide layers on the contacts are removed, and the conductive effect of the contacts during silver plating is better.

Description

Technical Field

[0001] The utility model relates to the technical field of relay processing, in particular to a polishing machine for processing relay contacts. Background Art

[0002] A relay is an electronic control device that has a control system (also known as an input circuit) and a controlled system (also known as an output circuit). It is usually used in automatic control circuits. It is actually an "automatic switch" that uses a smaller current to control a larger current. Therefore, it plays the role of automatic regulation, safety protection, and circuit conversion in the circuit. Metal contacts are the key components of relays (electronic switches), and the switching function of the circuit is completed by the contact and disconnection of the moving metal contacts and the static metal contacts.

[0003] When the metal contacts of the relay are processed, they need to be plated with a layer of silver. However, there will be an oxide layer on the surface of the metal contacts before silver plating, which will lead to the unsatisfactory conductivity of the metal contacts after silver plating. Therefore, it is urgent to design a polishing machine for relay contact processing to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a polishing machine for processing relay contacts to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A polishing machine for processing relay contacts comprises a base, a slide is arranged on the top of the base, evenly distributed placement grooves are opened on the top outer wall of the slide, metal sheets are arranged inside the placement grooves, two support plates are fixed to the top outer wall of the base, a top plate is fixed to the top of the support plate, a servo electric cylinder is fixed to the top outer wall of the top plate, the output shaft of the servo electric cylinder passes through the top plate and a mounting frame is fixed thereon, a motor roller and a driven roller are arranged inside the mounting frame, a sanding belt is transmission-connected between the motor roller and the driven roller, and the sanding belt is located on the top of the slide.

[0007] Furthermore, a slide groove is provided on the outer wall of one side of the slide seat, a slider is slidably connected inside the slide groove, the driven roller is connected to the slider through a bearing, a fixed nut is fixed to the inner wall of one side of the mounting frame, a screw rod is threadedly connected inside the fixed nut, and one end of the screw rod is connected to the slider through a bearing.

[0008] Furthermore, a handwheel is fixed to one end of the screw rod away from the slider, and a moving nut is threadedly connected to the outside of the screw rod, and the moving nut is located between the mounting frame and the handwheel.

[0009] Furthermore, a slide rail is fixed to the top outer wall of the base, and the slide seat is slidably connected to the slide rail.

[0010] Furthermore, a motor is fixed to the top outer wall of the base, a turntable is fixed to the output shaft of the motor, and a connecting rod is hinged between the turntable and the slide seat.

[0011] Furthermore, a pressure roller is connected to the interior of the mounting frame via a bearing, and the bottom of the pressure roller contacts the inner wall of the abrasive belt.

[0012] Furthermore, a guide sleeve is fixed to the top outer wall of the top plate, a guide column is fixed to the top outer wall of the mounting frame, and the guide column is movably inserted in the guide sleeve.

[0013] In the above technical scheme, the utility model provides a polishing machine for processing relay contacts, which has the following beneficial effects: the sanding belt and the driven roller are driven to rotate by the arranged electric roller, so that the sanding belt can simultaneously polish the contacts on multiple metal sheets at the bottom, so that the oxide layer on the contacts is removed, thereby making the contacts more conductive when silver-plated; the turntable is driven to rotate by the arranged motor, so that the turntable drives the metal sheet on the slide seat to reciprocate through the connecting rod, thereby achieving a more efficient effect when polishing the contacts of the relay; through the rotation of the arranged screw, the driven roller can be rotated away from the electric roller, so that the sanding belt can be conveniently tightened when loose, and at the same time, a pre-tightening force is generated on the screw through the moving nut, so that the screw can be further fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 The present invention is a schematic diagram of the main structure of a polishing machine for processing relay contacts according to an embodiment of the present invention.

[0016] Figure 2 This is a schematic diagram of the enlarged structure of point A provided in an embodiment of a polishing machine for processing relay contacts of the utility model.

[0017] Figure 3 This is a schematic diagram of the enlarged structure of point B provided in an embodiment of a polishing machine for processing relay contacts of the utility model.

[0018] Description of reference numerals:

[0019] 1 base, 2 support plate, 3 top plate, 4 mounting frame, 5 electric roller, 6 driven roller, 7 abrasive belt, 8 servo electric cylinder, 9 guide sleeve, 10 guide column, 11 slide seat, 12 placement groove, 13 metal sheet, 14 handwheel, 15 motor, 16 turntable, 17 connecting rod, 18 clamping roller, 19 slide groove, 20 slider, 21 fixed nut, 22 screw, 23 moving nut, 24 handwheel. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-3 As shown, a polishing machine for relay contact processing provided by an embodiment of the utility model includes a base 1, a slide 11 is arranged on the top of the base 1, and the top outer wall of the slide 11 is opened with evenly distributed placement grooves 12, and a metal sheet 13 is arranged inside the placement groove 12. Two support plates 2 are fixed to the top outer wall of the base 1, and a top plate 3 is fixed to the top of the support plate 2. A servo electric cylinder 8 is fixed to the top outer wall of the top plate 3, and the output shaft of the servo electric cylinder 8 passes through the top plate 3 and is fixed with a mounting frame 4, and an electric roller 5 and a driven roller 6 are arranged inside the mounting frame 4, and an abrasive belt 7 is transmission-connected between the electric roller 5 and the driven roller 6, and the abrasive belt 7 is located on the top of the slide 11.

[0022] Specifically, in this embodiment, it includes a base 1, a slide 11 is arranged on the top of the base 1, and evenly distributed placement grooves 12 are opened on the top outer wall of the slide 11, and a metal sheet 13 is arranged inside the placement groove 12. The metal sheet 13 is the main part of the metal contact of the relay, and the metal sheet 13 has raised contacts. Two support plates 2 are fixed to the top outer wall of the base 1, and a top plate 3 is fixed to the top of the support plate 2. A servo cylinder 8 is fixed to the top outer wall of the top plate 3. The output shaft of the servo cylinder 8 passes through the top plate 3 and is fixed with a mounting frame 4. An electric roller 5 and a driven roller 6 are arranged inside the mounting frame 4. The internal stator of the electric roller 5 is fixed to the mounting frame 4. When the electric roller 5 is energized, its external rotor can rotate. A sanding belt 7 is transmission-connected between the electric roller 5 and the driven roller 6. The sanding belt 7 is located on the top of the slide 11. The sanding belt 7 is driven by the electric roller 5 to grind the contacts on the metal sheet 13 so that the oxide layer is removed.

[0023] The utility model provides a polishing machine for processing relay contacts. The electric roller 5 is arranged to drive the sanding belt 7 and the driven roller 6 to rotate, so that the sanding belt 7 can polish the contacts on multiple metal sheets 13 at the bottom at the same time, so that the oxide layer on the contacts is removed, thereby making the contacts have a better conductive effect when silver-plated.

[0024] In another embodiment provided by the utility model, a slide groove 19 is provided on the outer wall of one side of the slide seat 11, and a slider 20 is slidably connected inside the slide groove 19. The slider 20 slides along the slide groove 19, and the driven roller 6 is connected to the slider 20 through a bearing. The driven roller 6 can rotate on one side of the slider 20. A fixed nut 21 is fixed to the inner wall of one side of the mounting frame 4, and a screw 22 is connected to the inside of the fixed nut 21 through a thread. One end of the screw 22 is connected to the slider 20 through a bearing. When the screw 22 is rotated, the slider 20 Slide along the slide groove 19; a handwheel 24 is fixed to the end of the screw rod 22 away from the slider 20, and the handwheel 24 facilitates the rotation of the screw rod 22. The outside of the screw rod 22 is connected with a moving nut 23 through a thread, and the moving nut 23 is located between the mounting frame 4 and the handwheel 24. By rotating the set screw rod 22, the driven roller 6 can be rotated away from the electric roller 5, so that the sanding belt 7 can be conveniently tightened when it is loose. At the same time, a pre-tightening force is generated on the screw rod 22 through the moving nut 23, so that the screw rod 22 can be further fixed.

[0025] In another embodiment provided by the utility model, a slide rail 14 is fixed to the top outer wall of the base 1, and the slide 11 is slidably connected to the slide rail 14; a motor 15 is fixed to the top outer wall of the base 1, and a turntable 16 is fixed to the output shaft of the motor 15, and a connecting rod 17 is hinged between the turntable 16 and the slide 11. The turntable 16 is driven to rotate by the set motor 15, so that the turntable 16 drives the metal sheet 13 on the slide 11 to reciprocate through the connecting rod 17, thereby achieving a higher efficiency effect when grinding the contacts of the relay.

[0026] In another embodiment provided by the utility model, a pressure roller 18 is connected to the inside of the mounting frame 4 through a bearing, and the bottom of the pressure roller 18 contacts the inner wall of the sanding belt 7. The pressure roller 18 is used to ensure that the contact points on each metal sheet 13 can be fully polished; a guide sleeve 9 is fixed to the top outer wall of the top plate 3, and a guide column 10 is fixed to the top outer wall of the mounting frame 4. The guide column 10 is movably inserted into the inside of the guide sleeve 9. The guide column 10 is used to make the up and down movement of the mounting frame 4 more stable.

[0027] Working principle: During use, when it is necessary to grind the contacts on the metal sheet 13, the metal sheet 13 is placed inside the placement groove 12, and the metal contacts are placed close to the sanding belt 7. Then, the motor 15 drives the turntable 16 to rotate, so that the turntable 16 drives the slide 11 to slide back and forth on the slide rail 14 through the connecting rod 17. Then, the sanding belt 7 is driven to rotate by the electric roller 5, and the mounting frame 4 is driven downward by the servo electric cylinder 8, so that the sanding belt 7 grinds the contacts of the metal sheet 13, so that the oxide layer of the contacts is removed; when the sanding belt 7 is loose, the screw 22 is rotated by the handwheel 24, so that the screw 22 drives the slider 20 and the driven roller 6 to slide away from the electric roller 5, so that the sanding belt 7 is tensioned, and then the screw 22 is kept fixed, and the moving nut 23 is rotated, so that a pre-tightening force is generated between the moving nut 23 and the mounting frame 4, so that the screw 22 is fixed.

[0028] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A polishing machine for processing relay contacts, characterized in that: The invention comprises a base (1), a slide (11) is arranged on the top of the base (1), the top outer wall of the slide (11) is provided with evenly distributed placement grooves (12), a metal sheet (13) is arranged inside the placement groove (12), two support plates (2) are fixed on the top outer wall of the base (1), a top plate (3) is fixed on the top of the support plate (2), a servo electric cylinder (8) is fixed on the top outer wall of the top plate (3), the output shaft of the servo electric cylinder (8) passes through the top plate (3) and is fixed with a mounting frame (4), a motor roller (5) and a driven roller (6) are arranged inside the mounting frame (4), a sanding belt (7) is connected between the motor roller (5) and the driven roller (6), and the sanding belt (7) is located on the top of the slide (11).

2. A polishing machine for processing relay contacts according to claim 1, characterized in that: A slide groove (19) is provided on an outer wall of one side of the slide seat (11), a slider (20) is slidably connected inside the slide groove (19), the driven roller (6) is connected to the slider (20) via a bearing, a fixed nut (21) is fixed to an inner wall of one side of the mounting frame (4), a screw rod (22) is threadedly connected inside the fixed nut (21), and one end of the screw rod (22) is connected to the slider (20) via a bearing.

3. A polishing machine for processing relay contacts according to claim 2, characterized in that: A hand wheel (24) is fixed to one end of the screw rod (22) away from the slider (20), and a movable nut (23) is connected to the outside of the screw rod (22) via a thread, and the movable nut (23) is located between the mounting frame (4) and the hand wheel (24).

4. A polishing machine for processing relay contacts according to claim 1, characterized in that: A slide rail (14) is fixed to the top outer wall of the base (1), and the slide seat (11) is slidably connected to the slide rail (14).

5. A polishing machine for relay contact processing according to claim 1, characterized in that: A motor (15) is fixed to the top outer wall of the base (1), a rotating disk (16) is fixed to the output shaft of the motor (15), and a connecting rod (17) is hinged between the rotating disk (16) and the sliding seat (11).

6. A polishing machine for processing relay contacts according to claim 1, characterized in that: A pressure roller (18) is connected to the interior of the mounting frame (4) via a bearing, and the bottom of the pressure roller (18) contacts the inner wall of the abrasive belt (7).

7. A polishing machine for processing relay contacts according to claim 1, characterized in that: A guide sleeve (9) is fixed to the top outer wall of the top plate (3), and a guide column (10) is fixed to the top outer wall of the mounting frame (4), wherein the guide column (10) is movably inserted into the interior of the guide sleeve (9).

Images