Wire electrode tension detection device convenient for feeding and discharging wires for reciprocating wire cutting machine tool

Abstract

The invention discloses a reciprocating wire cutting machine electrode wire tension detection device facilitating wire feeding and discharging, which comprises a device main body, a strain type force sensor, a movable connecting piece, a floating block, a main guide wheel, a first guide wheel, a second guide wheel, an analog-to-digital converter, a Type-C female seat, a device push rod, a device outer cover and a device bottom plate, the movable connecting piece is rotationally connected with the device body, one end of the strain type force sensor is installed on the movable connecting piece, and the other end of the strain type force sensor is connected with the floating block and kept suspended. The main guide wheel is installed on the floating block and can rotate by a certain angle along with the movable connecting piece, the first guide wheel and the second guide wheel are installed on the device body, and the analog-digital converter and the Type-C female base are fixed to the device body. Through the design of the movable part, the wire feeding and discharging operation of the electrode wire is more convenient, and meanwhile, the detection precision is guaranteed.

Description

Technical Field

[0001] The invention relates to an electrode wire tension detection device, in particular to an electrode wire tension detection device for a reciprocating wire cutting machine tool which is convenient for loading and unloading wires, and is mainly used for detecting the electrode wire tension of a reciprocating wire electric spark wire cutting machine tool while ensuring convenience and reliability. Background Art

[0002] Wire EDM is a special processing machine tool that uses electric spark pulse discharge between the electrode wire and the workpiece, and uses the electrical erosion of the discharge to remove the workpiece material to complete the cutting process. Among them, the tension of the electrode wire is an important factor affecting the accuracy of machine tool processing parts. Different from the unidirectional slow wire of the slow wire cutting machine, the wire speed of the electrode wire of the high-speed reciprocating wire cutting machine is as high as 8-15m / s. In order to achieve a long-term cutting of the workpiece with a limited length of electrode wire, it is necessary to frequently change its wire running direction. At this time, it is difficult to control the tension of the electrode wire constantly. There are many technical difficulties for the machine tool to achieve long-term reliable and stable operation. Such an electrode wire tension detection device can not only be used as a real-time detection of the electrode wire tension, but also can realize the data collection function for the subsequent electrode wire tension adjustment.

[0003] The current electrode wire tension detection device for wire cutting machines is difficult to use when threading the wire. Not only is the operation cumbersome, it may also cause damage to the device. Summary of the invention

[0004] In order to solve the defects of the existing electrode wire tension detection device for wire cutting machine, the present invention provides a reciprocating wire cutting machine electrode wire tension detection device which is convenient for loading and unloading wire, and can effectively solve the problems of difficult wire loading and complicated wire loading steps mentioned in the above background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A reciprocating wire cutting machine tool electrode wire tension detection device for convenient wire loading and unloading, comprising a strain type force sensor, a movable connecting piece, a device body, a floating block, a first guide wheel, a second guide wheel, a main guide wheel, a stop lock, a pop-up spring, an analog-to-digital converter, a Type-C female seat, a device push rod, a device outer cover and a device bottom plate, one end of the strain type force sensor is mounted on an outer mounting boss of the movable connecting piece, and the other end is screwed with the floating block, a rotating component of the movable connecting piece is placed in a rotating groove of the device body, and the movable connecting piece is rotationally connected to the device body, the main guide wheel is rotationally mounted on the floating block, a first guide wheel and a second guide wheel are rotationally mounted on the front end surface of the device body, the stop lock is fixedly mounted on the lower side of the rear end surface of the device body, the Type-C female seat is fixed on the first mounting platform on the lower side of the front end surface of the device body, the analog-to-digital converter is fixed on the second mounting platform on the lower side of the rear end surface of the device body, the device push rod is plugged into the strain type force sensor, the device outer cover is screwed with the device body, and the device bottom plate is screwed with the device outer cover.

[0007] Furthermore, two first mounting holes for rotatably mounting the first guide wheel and the second guide wheel are opened in the middle of the front end face of the device body, and two third threaded holes for mounting the device outer cover are opened on the upper and lower sides; a first mounting platform is opened below the front end face of the device body, and two first threaded holes are opened on the first mounting platform; two first placement holes for placing pop-up springs are opened on the left end face of the device body; a rotating groove for placing a rotating part is opened on the upper side of the rear end face of the device body, and a connecting hole is opened at the center point of the rotating groove; a mounting groove for installing a stop lock is opened on the lower side of the rear end face of the device body, and two third mounting holes are opened at the outer end of the mounting groove, and a second mounting platform is opened on the left side of the mounting groove, and the second mounting platform has two second threaded holes.

[0008] Furthermore, a blocking groove is provided on the rear end surface of the floating block to enable the movable connecting member to maintain stability when detecting tension, and a second mounting hole is provided on the front end surface for mounting the main guide wheel.

[0009] Furthermore, a blocking boss is provided on the lower side of the movable connecting member, a mounting boss is provided on the upper left side, and an inclined limit platform is provided on the upper right side for stopping the movable connecting member accordingly when it pops out. A rotating component is provided below the inclined limit platform, a rotating hole is provided in the center of the rotating component, and a second placement hole is provided on the right end face of the movable connecting member for placing a pop-up spring when it is contracted.

[0010] Furthermore, the inner end surface of the device outer cover is provided with three fifth mounting holes for mounting the device bottom plate, the front end surface is symmetrically provided with two through holes, and the middle of the through holes is provided with a track groove for adapting to the motion track of the main guide wheel.

[0011] Furthermore, the stop lock can provide resistance to the blocking boss of the movable connecting part to fix it when the lock tongue is extended; two pop-up springs are arranged on the left end face of the device body, which can provide pop-up force to the movable connecting part when the lock tongue of the stop lock is retracted, so that the movable connecting part pops out and drives the strain type force sensor, floating block and main guide wheel to move outward.

[0012] Furthermore, the wheel groove of the main guide wheel on the floating block is on the same plane as the wheel grooves of the first guide wheel and the second guide wheel installed on the device body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The tension detection device of the present invention has a simple structure and a compact appearance, can be adapted to various types of wire cutting machines, and can be conveniently fixed at a certain position of the wire cutting machine.

[0015] When threading, just press the stop lock and the main wheel will pop out, then you can easily pass the wire through the two guide wheels, and then press the device push rod to complete the threading. It is also more convenient when threading. At the same time, the tension value can be directly read and displayed in real time, so that the tension can be controlled to a certain extent and the change of tension can be monitored, which can better guide the subsequent processing process and improve the processing quality of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the electrode wire tension detection device (without cover) of the present invention;

[0017] Figure 2 Another schematic diagram of the electrode wire tension detection device (without cover) of the present invention; Figure 3 This is a schematic diagram of the installation position of the present invention on the online cutting machine tool;

[0018] Figure 4 It is a schematic diagram of the forces on the main guide wheel, the first guide wheel and the second guide wheel of the present invention;

[0019] Figure 5 It is a schematic diagram of the outer cover of the device of the present invention;

[0020] Figure 6 It is a schematic diagram of the bottom plate of the device of the present invention.

[0021] Explanation of the numbers in the figure: 1-strain type force sensor; 2-mounting boss; 3-movable connecting piece; 4-connecting hole; 5-device body; 6-third threaded hole; 7-first placement hole; 8-pop-up spring; 9-first guide wheel; 10-dominant wheel; 11-second guide wheel; 12-first mounting platform; 13-first threaded hole: 14-Type-C female seat; 15-third mounting hole; 16-stop lock; 17-blocking boss; 18-floating block; 19-tilt limit platform; 20-rotation hole; 21-rotation part Part; 22-rotation slot; 23-second placement hole; 24-first mounting hole; 25-blocking slot; 26-second mounting hole; 27-mounting slot; 28-second threaded hole; 29-analog-to-digital converter; 30-second mounting table; 31-fourth mounting hole; 32-fastening hole; 33-wire drum; 34-electrode wire; 35-machine tool guide wheel; 36-installation push rod; 37-connecting rod; 38-fastening bolt; 39-installation outer cover; 40-fifth mounting hole; 41-through hole; 42-track slot; 43-installation bottom plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] The present invention provides a reciprocating wire cutting machine tool electrode wire tension detection device which is convenient for loading and unloading wires. Figure 1 and Figure 2 As shown, it includes a device body 5, two first mounting holes 24 are opened in the middle of the front end surface for rotatably mounting the first guide wheel 9 and the second guide wheel 11, and two third threaded holes 6 are opened on the upper and lower sides for mounting the device outer cover 39; a first mounting platform 12 is opened below the front end surface of the device body 5 for placing the Type-C female socket, and two first threaded holes 13 are opened on the first mounting platform 12; two first placement holes 7 are opened on the left end surface of the device body 5 for placing the pop-up spring 8; a rotation groove 22 is opened on the upper side of the rear end surface of the device body 5 for placing the rotating part 21 of the movable connecting member 3, and a connecting hole 4 is opened at the center point of the rotation groove 22 for rotatably connecting the movable connecting member 3; a mounting groove 27 is opened on the lower side of the rear end surface of the device body 5 for placing the stop lock 16, and two third mounting holes 15 are opened at the outer end of the mounting groove 27, and a second mounting platform 30 is opened on the left side of the mounting groove 27 for placing the analog-to-digital converter 29, and the second mounting platform 30 is opened. Two second threaded holes 28.

[0024] like Figure 1 and Figure 2As shown, it includes a floating block 18, a blocking groove 25 is opened on the rear end surface of the floating block 18 to keep the movable connecting member 3 stable when detecting tension, and a second mounting hole 26 is opened on the front end surface for mounting the main guide wheel 10.

[0025] like Figure 1 and Figure 2 As shown, a blocking boss 17 is provided on the lower side of the movable connecting member 3, a mounting boss 2 is provided on the upper left side for mounting the strain type force sensor 1, an inclined limit platform 19 is provided on the upper right side for enabling the movable connecting member 3 to stop accordingly when it pops out, a rotating component 21 is provided below the inclined limit platform 19, a rotating hole 20 is provided at the center of the rotating component 21, and a second placement hole 23 is provided on the right end face of the movable connecting member 3 for placing the pop-up spring 8 when it is contracted.

[0026] like Figure 5 As shown, the inner end surface of the device outer cover 39 is provided with three fifth mounting holes 40 for mounting the device bottom plate 43 , and the front end surface is symmetrically provided with two through holes 41 , and a track groove 42 is provided in the middle of the through holes 41 for adapting to the motion track of the main wheel 10 .

[0027] The installation steps of the electrode wire tension detection device of the present invention are: first, the floating block 18 is connected to the strain type force sensor 1 through two bolts, and then the strain type force sensor 1 is installed together with the movable connecting member 3 by two bolts, and it is particularly noted that the blocking boss 17 of the movable connecting member 3 should be inserted into the blocking groove 25 of the floating block 18; two pop-up springs 8 are placed in the first placement hole 7 on the left end face of the device body 5, and then the rotating component 21 of the movable connecting member 3 is placed in the rotating groove 22 of the device body 5, and the bearing screw is connected to the device body 5 through the rotating hole 20 of the movable connecting member 3 and the connecting hole 4 of the device body 5; the stop lock 16 is placed in the installation groove 27 of the device body 5, and the stop lock 16 is installed on the device body 5 by passing through the third installation hole 15 with two screws; Type- The Type-C socket 14 is placed on the first mounting platform 12 of the device body 5, and two screws are used to fix the Type-C socket 14 through the first threaded hole 13; the analog-to-digital converter 29 is placed on the second mounting platform 30 on the rear end face of the device body 5, and two screws are used to fix the analog-to-digital converter 29 through the second threaded hole 28; the device outer cover 39 is covered on the front end face of the device body 5, and the device body 5 and the device outer cover 39 are connected with two bolts; the first guide wheel 9 and the second guide wheel 11 are placed on the two first mounting holes 24, and are installed with bearing screws; the main guide wheel is placed at the second mounting hole 26, and is installed with bearing screws; the lower end of the strain type force sensor 1 is inserted into the connecting groove of the device push rod 36; the device base plate 43 is placed at the bottom of the device outer cover 39, and is installed with three bolts.

[0028] like Figure 3As shown, the installation method of the present invention on the wire cutting machine tool is shown in the figure, and the connecting rod 37 on the machine tool passes through the fourth installation hole 31, and the fastening bolt 38 is used to pass through the fastening hole 32 to keep it fixed.

[0029] After the electrode wire tension detection device of the present invention is installed, when the wire is to be threaded, the button of the stop lock 16 is pressed, and the lock tongue of the stop lock 16 contracts. At the same time, the movable connecting member 3 is ejected outward by the elastic force of the ejection spring 8, and the main guide wheel 10 is ejected accordingly; at this time, the electrode wire 34 can pass through the wheel grooves of the first guide wheel 9 and the second guide wheel 11 more conveniently, and then the device push rod 36 is pressed to drive the main guide wheel 10 to return to its original position. When returning to the original position, the lock tongue of the stop lock 16 prevents the movable connecting member 3 from moving just as before. The electrode wire 34 is restricted by the wheel grooves of the main guide wheel 10, the first guide wheel 9, and the second guide wheel 11, and exerts force on them, driving the bending deformation of the strain type force sensor 1, thereby causing the resistance bonded to the strain type force sensor 1 to change, thereby causing the change of the electrical signal, such as Figure 4 shown.

[0030] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reciprocating wire cutting machine tool electrode wire tension detection device that is convenient for wire loading and unloading, comprising a strain type force sensor (1), a movable connecting piece (3), a device body (5), a floating block (18), a first guide wheel (9), a second guide wheel (11), a main guide wheel (10), a stop lock (16), a pop-up spring (8), an analog-to-digital converter (29), a Type-C female seat (14), a device push rod (36), a device outer cover (39) and a device bottom plate (43), characterized in that: One end of the strain type force sensor (1) is mounted on the outer mounting boss (2) of the movable connecting member (3), and the other end is screwed to the floating block (18). The rotating component (21) of the movable connecting member (3) is placed in the rotating groove (22) of the device body (5). At the same time, the movable connecting member (3) is rotatably connected to the device body (5). The main guide wheel (10) is rotatably mounted on the floating block (18). The front end surface of the device body (5) is rotatably mounted with the first guide wheel (9) and the second guide wheel (11). The stop lock (16) is fixedly mounted on the lower side of the rear end face of the device body (5), the Type-C female socket (14) is fixed on the first mounting platform (12) on the lower side of the front end face of the device body (5), the analog-to-digital converter (29) is fixed on the second mounting platform (30) on the lower side of the rear end face of the device body (5), the device push rod (36) is plugged into the strain type force sensor (1), the device outer cover (39) is screwed to the device body (5), and the device bottom plate (43) is screwed to the device outer cover (39).

2. The electrode wire tension detection device for a reciprocating wire cutting machine tool that is convenient for loading and unloading wires according to claim 1 is characterized in that: The front end surface of the device body (5) is provided with two first mounting holes (24) in the middle part for rotatably mounting the first guide wheel and the second guide wheel, and the upper and lower sides are provided with two third threaded holes (6) for mounting the device outer cover (39); a first mounting platform (30) is provided below the front end surface of the device body (5), and the first mounting platform (30) is provided with two first threaded holes (13); the left end surface of the device body (5) is provided with two first placement holes (7) for placing a pop-up spring; the upper side of the rear end surface of the device body (5) is provided with a rotation groove (22) for placing a rotating component (21), and the center point of the rotation groove (22) is provided with a connecting hole (4); the lower side of the rear end surface of the device body (5) is provided with a mounting groove (27) for mounting a stop lock (16), and the outer end of the mounting groove (27) is provided with two third mounting holes (15); a second mounting platform (30) is provided on the left side of the mounting groove (27), and the second mounting platform is provided with two second threaded holes (28).

3. The electrode wire tension detection device for a reciprocating wire cutting machine tool that is convenient for loading and unloading wires according to claim 1 is characterized in that: The rear end surface of the floating block (18) is provided with a blocking groove (25) for keeping the movable connecting member stable when detecting tension, and the front end surface is provided with a second mounting hole (26) for mounting the main guide wheel (10).

4. The electrode wire tension detection device for a reciprocating wire cutting machine tool that is convenient for loading and unloading wires according to claim 1 is characterized in that: The movable connecting member (3) has a blocking boss (17) on its lower side, a mounting boss (2) on its upper left side, and an inclined limit platform (19) on its upper right side for stopping the movable connecting member (3) when it pops out. A rotating component (21) is provided below the inclined limit platform (19), and a rotating hole (20) is provided at the center of the rotating component (21). A second placement hole (23) is provided on the right end surface of the movable connecting member (3) for placing a pop-up spring when it is retracted.

5. The electrode wire tension detection device for a reciprocating wire cutting machine tool that is convenient for loading and unloading wires according to claim 1 is characterized in that: The inner end surface of the device outer cover (39) is provided with three fifth mounting holes (40) for mounting the device bottom plate, and the front end surface is symmetrically provided with two through holes (41), wherein the middle of the through holes (41) is provided with a track groove (42) for adapting to the motion track of the main driving wheel.

6. The electrode wire tension detection device for a reciprocating wire cutting machine tool that can conveniently load and unload the wire according to claim 1 is characterized in that: The stop lock (16) can provide resistance to the blocking boss (17) of the movable connecting member (3) to fix it when the lock tongue is extended; two pop-up springs (8) are arranged on the left end face of the device body (5), which can provide a pop-up force to the movable connecting member (3) when the stop lock tongue is retracted, so that the movable connecting member (3) pops up and drives the strain type force sensor (1), the floating block (18) and the main guide wheel (10) to move outward.

7. The electrode wire tension detection device for a reciprocating wire cutting machine tool that is convenient for loading and unloading wires according to claim 1 is characterized in that: The wheel groove of the main guide wheel (10) on the floating block (18) is on the same plane as the wheel grooves of the first guide wheel (9) and the second guide wheel (11) mounted on the device body.

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