Mechanism capable of selecting upper swing arm and lower swing arm

Abstract

The utility model discloses a selectable up-down swing arm mechanism. Comprising a swing arm up-and-down support capable of moving in the up-and-down direction, a swing arm air cylinder pushing block indirectly installed and fixed on the swing arm up-and-down support and capable of moving relative to the swing arm up-and-down support in the up-and-down direction, and a plurality of rotating rods installed on the swing arm up-and-down support and capable of rotating relative to the swing arm up-and-down support. The mounting rods are mounted on the swing arm cylinder push block; the swing arm fixing blocks are arranged on the swing arm cylinder push block; one end of each swing arm fixing block is fixedly mounted on the corresponding rotating rod, and the other end of each swing arm fixing block is mounted on the mounting rod; one end of each swing arm connecting rod is fixedly installed on the corresponding rotating rod. According to the utility model, the up-and-down positions of the swing arm up-and-down bracket and the up-and-down and left-and-right positions of the two swing arm connecting rods can be adjusted.

Description

Technical Field

[0001] The utility model relates to an electric spark wire cutting device. Background Art

[0002] Electrospark machining is a process that uses pulsed spark discharge to erode the material being machined. There is no contact between the machining electrode and the material being machined due to the presence of a liquid dielectric, so a softer electrode (tool) can be used to machine hard and brittle conductors such as metals and semiconductor materials.

[0003] The most common EDM process is moving wire electrode cutting. The cutting wire used in wire electrode cutting is electrode wire (metal wire). In current equipment, the electrode wire is wound on a drum, and before the electrode wire is wound on the drum, it needs to be "threaded". "Threading" needs to be done manually by workers. There is no special threading mechanism, and there is no mechanism specially designed to adjust the up, down, left, and right positions of the threading mechanism. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a selectable upper and lower swing arm mechanism, which can conveniently adjust the upper, lower, left and right positions of the wire threading mechanism, so as to facilitate the smooth progress of the subsequent wire threading process.

[0005] In order to solve the above technical problems, the utility model proposes the following technical solutions: an upper and lower swing arm mechanism that can select upper and lower swing arm brackets that can move in the up and down directions, a swing arm cylinder push block that is indirectly installed and fixed on the upper and lower swing arm brackets and can move relative to the upper and lower swing arm brackets in the up and down directions, a plurality of rotating rods installed on the upper and lower swing arm brackets and can rotate relative to the upper and lower swing arm brackets, a plurality of mounting rods installed on the swing arm cylinder push block, a plurality of swing arm fixing blocks and a plurality of swing arm connecting rods;

[0006] One end of a plurality of swing arm fixing blocks is fixed on a plurality of rotating rods, and the other end is fixed on a mounting rod;

[0007] One end of a plurality of swing arm connecting rods is installed and fixed on a plurality of rotating rods.

[0008] A further limitation of the above technical solution is that a plurality of rotating column pivot holes are provided on the upper and lower brackets of the swing arm, and a plurality of rotating rods are respectively installed in the plurality of rotating column pivot holes and can rotate therein; a plurality of rotating rod pivot holes are provided on the swing arm cylinder push block, and a plurality of mounting rods are respectively installed in the plurality of rotating rod pivot holes.

[0009] The technical solution is further limited in that the number of the rotating rod, the mounting rod, the swing arm fixing block and the swing arm connecting rod is two;

[0010] The upper and lower parts of the swing arm upper and lower brackets are respectively provided with two of the above-mentioned rotating column pivot holes, one of the two rotating rods is installed in the two rotating column pivot holes located at the upper part, and the other rotating rod is installed in the two rotating column pivot holes located at the lower part;

[0011] The upper part and the lower part of the swing arm cylinder push block are respectively provided with the above-mentioned rotating rod pivot hole, and the two mounting rods are respectively and correspondingly mounted in the two rotating rod pivot holes of the swing arm cylinder push block.

[0012] A further limitation of the above technical solution is that it also includes vertical upper and lower fixed seats of the swing arm, linear guide rails vertically installed and fixed on the upper and lower fixed seats of the swing arm along the up and down directions, and a number of guide rail sliders installed on the linear guide rails and capable of sliding along the linear guide rails, and a number of guide rail sliders are installed and fixed on the side walls of the upper and lower brackets of the swing arm.

[0013] The above technical solution is further limited in that it also includes an upper and lower driving rack, a motor bracket, an upper and lower driving motor mounted and fixed on the motor bracket, and an upper and lower driving gear mounted and fixed on the rotating shaft of the upper and lower driving motor;

[0014] The upper and lower driving racks are vertically mounted and fixed on the side walls of the upper and lower brackets of the swing arm along the up and down directions;

[0015] The upper and lower driving gears are connected with the upper and lower driving racks through the gear and rack matching mode.

[0016] The above technical solution is further limited in that it also includes a swing arm cylinder bracket installed and fixed on the top of the upper and lower brackets of the swing arm and a swing arm cylinder installed and fixed on the swing arm cylinder bracket;

[0017] The push block of the swing arm cylinder is installed and fixed on the piston rod of the swing arm cylinder;

[0018] The swing arm cylinder push block is installed and fixed below the swing arm cylinder.

[0019] Compared with the prior art, the utility model has the following beneficial effects: through the cooperation of the upper and lower driving motors, the upper and lower driving gears and the upper and lower driving racks, the upper and lower positions (i.e., the heights) of the upper and lower brackets of the swing arm can be adjusted; through the cooperation of the swing arm cylinder, the swing arm cylinder push block, two rotating rods, two mounting rods and two swing arm fixing blocks, the upper and lower positions and left and right positions of the two swing arm connecting rods can be adjusted, thereby facilitating the adjustment of the position of the rotating wire threading mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional combination diagram of the utility model with selectable upper and lower swing arm mechanisms.

[0021] Figure 2 It is an exploded view of the utility model with selectable upper and lower swing arm mechanisms. DETAILED DESCRIPTION

[0022] See also Figure 1 to Figure 2 A selectable upper and lower swing arm mechanism includes a vertical swing arm upper and lower fixed seat 11, a linear guide 13 vertically installed and fixed on the swing arm upper and lower fixed seat 11 along the up and down direction, a plurality of guide sliders 15 installed on the linear guide 13 and capable of sliding along the linear guide 13, a swing arm upper and lower bracket 17, an upper and lower driving rack 19, a motor bracket 21, an upper and lower driving motor 23 installed and fixed on the motor bracket 21, an upper and lower driving gear 25 installed and fixed on a rotating shaft (not numbered) of the upper and lower driving motor 23, a swing arm cylinder bracket 27 installed and fixed on the top of the swing arm upper and lower bracket 17, a swing arm cylinder 29 installed and fixed on the swing arm cylinder bracket 27, a swing arm cylinder push block 31 installed and fixed on a piston rod (not shown) of the swing arm cylinder 29, two rotating rods 33, two mounting rods 35, two swing arm fixing blocks 37 and two swing arm connecting rods 39.

[0023] A plurality of guide rail sliders 15 can slide on the linear guide rail 13 in the up-down direction.

[0024] The upper and lower brackets 17 of the swing arm are L-shaped, and a plurality of guide rail sliders 15 are installed and fixed on the right side wall of the upper and lower brackets 17 of the swing arm.

[0025] Two rotating column pivot holes 172 are respectively defined at the upper and lower portions of the swing arm upper and lower brackets 17 .

[0026] The upper and lower driving racks 19 are vertically mounted and fixed on the front side walls of the upper and lower swing arm brackets 17 along the up and down directions.

[0027] The upper and lower driving gears 25 are connected to the upper and lower driving racks 19 by means of gear and rack matching.

[0028] The swing arm cylinder push block 31 is installed and fixed below the swing arm cylinder 29, and a rotating rod pivot hole 312 is respectively opened at the upper and lower parts of the rear side surface thereof.

[0029] One of the two rotating rods 33 is installed in the two rotating column pivot holes 172 located at the upper part, and the other rotating rod 33 is installed in the two rotating column pivot holes 172 located at the lower part. Both rotating rods 33 can rotate in the rotating column pivot holes 172, so both rotating rods 33 can rotate relative to the upper and lower brackets 17 of the swing arm.

[0030] The two mounting rods 35 are respectively mounted in the two rotating rod pivot holes 312 of the swing arm cylinder push block 31 .

[0031] One end of the two swing arm fixing blocks 37 is fixed to the middle of the two rotating rods 33 (the two swing arm fixing blocks 37 are tightly matched with the two rotating rods 33 and do not rotate relative to each other), and the other end is installed on the two mounting rods 35.

[0032] The two mounting rods 35 may or may not rotate relative to the swing arm cylinder push block 31 and the two swing arm fixing blocks 37, as long as the swing arm fixing blocks 37 are not affected to rotate around the rotating rod 33 or to rotate relative to the upper and lower swing arm brackets 17.

[0033] One end of the two swing arm connecting rods 39 is fixedly mounted on the ends of the two rotating rods 33 (the two swing arm connecting rods 39 are tightly matched with the two rotating rods 33 and do not rotate relative to each other).

[0034] The upper end and the lower end of the connection balance bracket 100 of the rotary threading mechanism (not shown) are movably connected to the lower ends of the two swing arm connecting rods 39 respectively.

[0035] When working, the upper and lower driving motors 23 are started, and the rotating shaft (not numbered) thereof rotates to drive the upper and lower driving gears 25 to rotate, driving the upper and lower driving racks 19 and the upper and lower swing arm brackets 17 to move in the upper and lower directions, and driving a plurality of guide rail sliders 15 to slide in the upper and lower directions on the linear guide rails 13, thereby improving the stability of the upper and lower swing arm brackets 17. The swing arm cylinders 29 and the swing arm cylinder push blocks 31 move synchronously with the upper and lower swing arm brackets 17 in the upper and lower directions. Stop the upper and lower drive motors 23, keep the upper and lower swing arm brackets 17 stationary, start the swing arm cylinder 29, and its piston rod (not shown) extends and retracts to drive the swing arm cylinder push block 31 to move in the up and down directions, thereby driving the two mounting rods 35 to move in the up and down directions, while the two rotating rods 33 remain stationary, and the two mounting rods 35 pull the two swing arm fixing blocks 37 to rotate around the two rotating rods 33, and the two swing arm fixing blocks 37 drive the two rotating rods 33 to rotate, thereby driving the two swing arm connecting rods 39 to rotate, thereby driving the connecting balance bracket 100 of the rotating wire threading mechanism (not shown) to move accordingly to adjust the position of the rotating wire threading mechanism.

[0036] The utility model has the following beneficial effects: through the cooperation of the upper and lower driving motors 23, the upper and lower driving gears 25 and the upper and lower driving racks 19, the upper and lower positions (i.e., heights) of the upper and lower brackets 17 of the swing arm can be adjusted; through the cooperation of the swing arm cylinder 29, the swing arm cylinder push block 31, the two rotating rods 33, the two mounting rods 35 and the two swing arm fixing blocks 37, the upper and lower positions and the left and right positions of the two swing arm connecting rods 39 can be adjusted, and full automatic or semi-automatic operation can be achieved, thereby facilitating the adjustment of the position of the rotating wire threading mechanism.

Claims

1. A mechanism with selectable upper and lower swing arms, characterized in that: It comprises a swing arm upper and lower bracket (17) capable of moving in an up-down direction, a swing arm cylinder push block (31) indirectly mounted and fixed on the swing arm upper and lower bracket (17) and capable of moving in an up-down direction relative to the swing arm upper and lower bracket (17), a plurality of rotating rods (33) mounted on the swing arm upper and lower bracket (17) and capable of rotating relative to the swing arm upper and lower bracket (17), a plurality of mounting rods (35) mounted on the swing arm cylinder push block (31), a plurality of swing arm fixing blocks (37) and a plurality of swing arm connecting rods (39); One end of a plurality of swing arm fixing blocks (37) is fixedly mounted on a plurality of rotating rods (33), and the other end is mounted on a mounting rod (35); One end of a plurality of swing arm connecting rods (39) is mounted and fixed on a plurality of rotating rods (33).

2. The selectable up and down swing arm mechanism according to claim 1, characterized in that: A plurality of rotating column pivot holes (172) are formed on the upper and lower brackets (17) of the swing arm, and a plurality of rotating rods (33) are respectively mounted in the plurality of rotating column pivot holes (172) and are capable of rotating therein; a plurality of rotating rod pivot holes (312) are formed on the swing arm cylinder push block (31), and a plurality of mounting rods (35) are respectively mounted in the plurality of rotating rod pivot holes (312).

3. The selectable up and down swing arm mechanism according to claim 2, characterized in that: The number of the above-mentioned rotating rod, mounting rod, swing arm fixing block and swing arm connecting rod is two; The upper and lower parts of the swing arm upper and lower brackets (17) are respectively provided with two of the above-mentioned rotating column pivot holes (172); one of the two rotating rods (33) is installed in the two rotating column pivot holes (172) located in the upper part, and the other rotating rod (33) is installed in the two rotating column pivot holes (172) located in the lower part; The upper and lower parts of the swing arm cylinder push block (31) are respectively provided with a rotating rod pivot hole (312), and the two mounting rods (35) are respectively mounted in the two rotating rod pivot holes (312) of the swing arm cylinder push block (31).

4. The selectable up and down swing arm mechanism according to claim 1, characterized in that: It also includes a vertical swing arm upper and lower fixing seat (11), a linear guide rail (13) vertically mounted and fixed on the swing arm upper and lower fixing seat (11) along the up and down direction, and a plurality of guide rail sliders (15) mounted on the linear guide rail (13) and capable of sliding along the linear guide rail (13), wherein the plurality of guide rail sliders (15) are mounted and fixed on the side walls of the swing arm upper and lower brackets (17).

5. The selectable up and down swing arm mechanism according to claim 1, characterized in that: It also includes an upper and lower driving rack (19), a motor bracket (21), an upper and lower driving motor (23) mounted and fixed on the motor bracket (21), and an upper and lower driving gear (25) mounted and fixed on the rotating shaft of the upper and lower driving motor (23); The upper and lower driving racks (19) are vertically mounted and fixed on the side walls of the upper and lower brackets (17) of the swing arm along the up and down directions; The upper and lower driving gears (25) are connected to the upper and lower driving racks (19) by means of gear and rack matching.

6. The selectable up and down swing arm mechanism according to claim 1, characterized in that: It also includes a swing arm cylinder bracket (27) mounted and fixed on the top of the swing arm upper and lower brackets (17) and a swing arm cylinder (29) mounted and fixed on the swing arm cylinder bracket (27); The swing arm cylinder push block (31) is mounted and fixed on the piston rod of the swing arm cylinder (29); The swing arm cylinder push block (31) is installed and fixed below the swing arm cylinder (29).

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