CN217475080U - Servo motor cap dismounting machine - Google Patents

Abstract

The utility model belongs to the field of robot resistance welding gun electrode cap dismounting, and particularly discloses a servo motor cap dismounting machine, which comprises an outer shell frame, a mechanical shifting fork and a lead screw moving structure, wherein the outer shell frame is a rectangular frame shell, a cavity is arranged in the outer shell frame, a housing is arranged at the bottom of the outer shell frame, a servo motor is arranged in the housing, and the shaft end of the servo motor is connected with a belt pulley A; the lead screw moving structure is arranged in a cavity of the shell frame and comprises a belt wheel B, a lead screw and a moving block, wherein the lead screw is transversely arranged in the cavity, the belt wheel B and the moving block are arranged on the lead screw, and the belt wheel B is linked with the belt wheel A through a belt; the movable block is arranged at the front end of the lead screw, a pressing surface is arranged on the movable block, and the bottom end of the movable block is in contact with the bottom wall of the outer shell frame. The utility model has the advantages of dismantle the success rate height, do not have bullet cap or the condition that can't dismantle, effectively protect the electrode rod of being torn open.

Description

Servo motor cap dismounting machine

Technical Field

The utility model relates to a robot resistance welding gun electrode cap dismantles the field, specifically is a servo motor tears cap machine open.

Background

The welding gun needs to replace the electrode cap in the using process, and mainly comprises the steps of pulling out the old electrode cap and installing a new electrode cap. Wherein the removal of the old electrode cap requires the use of a cap remover for removal. The existing cap removing machine adopts a cylinder as a power source, the cylinder stretches and retracts to drive a connecting rod to move up and down, the connecting rod drives an upper mechanical shifting fork and a lower mechanical shifting fork to move up and down, the shifting fork is inserted into a gap between an electrode rod and an electrode cap, the mechanical shifting fork moves up and down, and finally the electrode cap is removed.

The cap removing machine completely drives the connecting rod mechanism to move up and down by means of up-and-down stretching of the cylinder, and when the air pressure of an air source is insufficient, the cap removing machine cannot be detached; the phenomenon of cap ejection appears when the air pressure of the air source is too high, the phenomenon of damage to the electrode rod often occurs, and the success rate of cap removal is reduced under the two conditions.

Disclosure of Invention

An object of the utility model is to provide a servo motor tears cap machine open to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a servo motor cap removing machine comprises a shell frame, a mechanical shifting fork and a lead screw moving structure, wherein the shell frame is a rectangular frame shell, a cavity is arranged on the inner side of the shell frame, a housing is arranged at the bottom of the shell frame, a servo motor is arranged in the housing, and the shaft end of the servo motor is connected with a belt wheel A; the lead screw moving structure is arranged in a cavity of the shell frame and comprises a belt wheel B, a lead screw and a moving block, wherein the lead screw is transversely arranged in the cavity, the belt wheel B and the moving block are arranged on the lead screw, and the belt wheel B is linked with the belt wheel A through a belt; the movable block is arranged at the front end of the lead screw, a pressing surface is arranged on the movable block, and the bottom end of the movable block is in contact with the bottom wall of the outer shell frame.

Preferably, the mechanical shifting forks are provided with two groups and are respectively arranged at the front side end of the shell frame, and each group of mechanical shifting forks comprises a movable shifting fork and a static shifting fork.

Preferably, the movable shifting fork is arranged on the static shifting fork and can be close to and far away from the static shifting fork, and the end parts of the movable shifting fork and the static shifting fork extending into the shell frame are provided with rolling wheels which are abutted against the abutting surface.

Preferably, the pressing surface is formed by connecting a plurality of pressing parts which are gradually increased in a stepped manner and have different thicknesses, the moving block can move along the length direction of the moving block when the lead screw operates, the pressing parts on the moving block are sequentially contacted with the rollers, and the rollers can press the rollers upwards when the thicknesses of the pressing parts are sequentially increased, so that the moving fork and the static shifting fork can move up and down relatively.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model uses the servo motor as the power source, the electric signal is stable and is not easily influenced by the outside, and the success rate of disassembly is further improved; when the electrode cap is disassembled, the shifting fork is inserted into a gap between the electrode cap and the electrode rod when the shifting fork is closed, the servo motor drives the screw rod to rotate after the electrode rod is inserted, the moving block moves forwards, the tension wheel rolls, the mechanical shifting fork begins to open up and down, and the electrode cap and the electrode rod are separated, so that the cap is disassembled, the disassembling success rate is high, the elastic cap or the disassembly incapability condition does not exist, and the disassembled electrode rod is effectively protected.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic diagram of the internal structure of the housing frame of the present invention.

In the figure: 1. a housing frame; 2. a housing; 3. a servo motor; 4. a pulley B; 5. a lead screw; 6. a moving block; 601. pressing the surface; 7. moving a shifting fork; 8. a static shifting fork; 9. and a roller.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a servo motor cap removing machine comprises a shell frame 1, a mechanical shifting fork and a lead screw moving structure, wherein the shell frame 1 is a rectangular frame shell, a cavity is arranged on the inner side of the shell frame 1, a housing 2 is arranged at the bottom of the shell frame 1, a servo motor 3 is arranged in the housing 2, and the shaft end of the servo motor 3 is connected with a belt wheel A (not shown in the figure); the lead screw moving structure is arranged in a cavity of the shell frame 1 and comprises a belt wheel B4, a lead screw 5 and a moving block 6, wherein the lead screw 5 is transversely arranged in the cavity, the lead screw 5 is provided with a belt wheel B4 and the moving block 6, and the belt wheel B4 is linked with the belt wheel A through a belt; the moving block 6 is arranged at the front end of the lead screw 5, a pressing surface 601 is arranged on the moving block 6, and the bottom end of the moving block 6 is in contact with the bottom wall of the shell frame 1.

In this embodiment, two sets of mechanical shifting forks are respectively arranged at the front side end of the housing frame 1, and each set of mechanical shifting forks comprises a movable shifting fork 7 and a static shifting fork 8.

In this embodiment, the movable fork 7 is disposed on the static fork 8 and can be close to and away from the static fork 8, the end portions of the movable fork 7 and the static fork 8 extending into the casing frame 1 are provided with a roller 9, and the roller 9 abuts against the abutting surface 601.

In this embodiment, the pressing surface 601 is formed by connecting a plurality of pressing portions with different thicknesses and increasing in a step-wise manner, the moving block 6 can move along the length direction of the moving block 6 when the lead screw 5 operates, and the pressing portions on the moving block are sequentially contacted with the rollers 9, and the rollers 9 can press the rollers 9 upwards when the thicknesses of the pressing portions are sequentially increased, so that the moving fork 7 and the static fork 8 move up and down relatively.

The working principle is as follows: when the electrode cap is disassembled, the mechanical shifting fork is inserted into a gap between the electrode cap and the electrode rod when the mechanical shifting fork is closed, the servo motor 3 drives the lead screw 5 to rotate after the electrode rod is inserted, the moving block 6 moves forwards, the tensioning idler wheel (idler wheel 9) rolls, the mechanical shifting fork starts to open up and down, the electrode cap is separated from the electrode rod, each set of shifting fork mechanism is divided into an upper set and a lower set, one fixed side of one side moves upwards or downwards, the idler wheel 9 is arranged at the back of the mechanical shifting fork, when the servo motor 3 drives the lead screw 5 to rotate, the moving block 6 starts to push forwards, the idler wheel 9 rolls on the pressing surface 601 of the moving block 6, the thickness of the pressing surface 601 of the moving block 6 is gradually thicker, the opening distance of the upper shifting fork and the lower shifting fork (the movable shifting fork 7 and the static shifting fork 8) is also gradually increased, and the cap disassembly is realized.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A servo motor cap removing machine is characterized by comprising a shell frame (1), a mechanical shifting fork and a lead screw moving structure, wherein the shell frame (1) is a rectangular frame shell, a cavity is arranged on the inner side of the shell frame, a housing (2) is arranged at the bottom of the shell frame (1), a servo motor (3) is arranged in the housing (2), and the shaft end of the servo motor (3) is connected with a belt pulley A; the lead screw moving structure is arranged in a cavity of the shell frame (1), and comprises a belt wheel B (4), a lead screw (5) and a moving block (6), wherein the lead screw (5) is transversely arranged in the cavity, the belt wheel B (4) and the moving block (6) are arranged on the lead screw (5), and the belt wheel B (4) is linked with the belt wheel A through a belt; the moving block (6) is arranged at the front end of the lead screw (5), a pressing surface (601) is arranged on the moving block (6), and the bottom end of the moving block (6) is in contact with the bottom wall of the outer shell frame (1).

2. The servo motor cap remover according to claim 1, wherein: the mechanical shifting forks are provided with two groups and are respectively arranged at the front side end of the shell frame (1), and each group of mechanical shifting forks comprises a movable shifting fork (7) and a static shifting fork (8).

3. The servo motor cap remover according to claim 2, wherein: the movable shifting fork (7) is arranged on the static shifting fork (8) and can be close to and far away from the static shifting fork (8), the end parts of the movable shifting fork (7) and the static shifting fork (8) extending into the shell frame (1) are provided with rolling wheels (9), and the rolling wheels (9) are abutted to the abutting surface (601).

4. The servo motor cap removing machine according to claim 3, wherein: the pressing surface (601) is formed by connecting a plurality of pressing parts which are in stepped increase and have different thicknesses, the moving block (6) can move along the length direction of the moving block (6) when the screw rod (5) operates, the pressing parts on the moving block are sequentially contacted with the rollers (9), the rollers (9) can press the rollers (9) upwards when the thicknesses of the pressing parts are sequentially increased, and the movable fork (7) and the static fork (8) can move up and down relatively.

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