CN208913316U - Height-adjustable wire cutting machine - Google Patents

Abstract

The utility model relates to wire cutting technology fields, disclose a kind of height-adjustable wire cutting machine, including body, body is equipped with wire reeling rack, inserting rack and power mechanism, the lead screw being vertically arranged is rotatably connected on body, wire reeling rack is connected by nut seat with lead screw, power mechanism includes horizontally disposed coarse adjustment axis and the fine adjustment shaft being rotationally connected on body, the end of coarse adjustment axis is equipped with coarse adjustment helical gear, the end of fine adjustment shaft is equipped with fine tuning helical gear, the helical gear two that the end of lead screw is fixed with the helical gear one being meshed with coarse adjustment helical gear and is meshed with fine tuning helical gear, the helical gear diameter of coarse adjustment is greater than the diameter of helical gear one, finely tune the diameter that helical gear diameter is less than helical gear two.By the setting of coarse adjustment axis and fine adjustment shaft, the rotation of coarse adjustment axis, the movement velocity of wire reeling rack is very fast, and fine adjustment shaft rotation, the movement velocity of wire reeling rack is slower, and the movement velocity of wire reeling rack is converted, easy to use.

Description

Height-adjustable wire cutting machine

Technical field

The utility model relates to wire cutting technology field, in particular to a kind of height-adjustable wire cutting machine.

Background technique

In China, under the new situation, urgent need greatly develops all kinds of molds, electrode and precision zero for industrial technology rapid development The processing technologies such as part, and CNC WEDM technology is exactly the processing technologys such as all kinds of molds, electrode and precision parts neck One of domain key technology；It is directly cut into part frequently with CNC WEDM method at present, substantially reduces and grinds Period processed, and reduce costs, improve Product Precision quality.

Notification number is that the Chinese patent of CN203330545U discloses a kind of taper Z-direction one of electric spark linear cutting machine Device, including U axis carriage, V axis carriage, Z axis, guide wheel and guider；It is connected between Z axis and V axis carriage with slide, and passes through the Two angle square seats are fixed with lifting motor；It is provided with gear on lifting motor, and is engaged with the rack gear on Z axis, to drive Z axis liter Drop；Guide wheel is fixed on slide by wheel frame；Guider is mounted on the lower end surface of Z axis by guide plate.The apparatus structure Simply, it not only ensure that its machining accuracy in the process used, but also process simple installation.

When in use, lifting motor starting drives Z axis uniform motion up and down to above-mentioned apparatus.In the actual production process, work as z The lower end distance height to be adjusted of axis farther out when, it is desirable to z-axis with faster speed close to object height, to accelerate to give birth to Produce efficiency；When the close height to be adjusted in the lower end of z-axis, it is desirable to z-axis to be run with slower speed, convenient for adjusting, Guarantee precision.And the movement of above-mentioned apparatus z-axis is completed by a lifting motor, cannot achieve the conversion of speed, is made With more inconvenience.

Utility model content

The purpose of the utility model is to provide a kind of height-adjustable wire cutting machine, have the advantages that convenient to use.

The above-mentioned technical purpose of the utility model has the technical scheme that

A kind of height-adjustable wire cutting machine, including body, the body are equipped with wire reeling rack, inserting rack and engine Structure is rotatably connected to the lead screw being vertically arranged on the body, and the wire reeling rack is connected by nut seat with lead screw, the power Mechanism includes horizontally disposed coarse adjustment axis and the fine adjustment shaft being rotationally connected on body, and it is oblique that the end of the coarse adjustment axis is equipped with coarse adjustment Gear, the end of the fine adjustment shaft be equipped with fine tuning helical gear, and the end of the lead screw is fixed with to be meshed with coarse adjustment helical gear Helical gear one and the helical gear two being meshed with fine tuning helical gear, the helical gear diameter of coarse adjustment are greater than the straight of helical gear one Diameter, the helical gear diameter of fine tuning are less than the diameter of helical gear two.

By using above-mentioned technical proposal, when the height that wire reeling rack distance to be adjusted farther out when, operator rotates coarse adjustment Axis, coarse adjustment axis drive lead screw rotation by coarse adjustment helical gear and helical gear one, since the helical gear diameter of coarse adjustment is greater than helical gear One diameter, one circle of coarse adjustment axis rotation, the circle number of lead screw rotation are greater than a circle, and the velocity of rotation of lead screw is very fast, the fortune of wire reeling rack Dynamic fast speed, wire reeling rack with faster speed close to object height, to accelerate production efficiency.It to be adjusted when wire reeling rack is close Height when, operator rotate fine adjustment shaft, fine adjustment shaft by fine tuning helical gear and helical gear two drive lead screw rotation, due to micro- Helical gear diameter is adjusted to be less than the diameter of helical gear two, fine adjustment shaft rotates several circles, one circle of lead screw rotation, to reduce lead screw Velocity of rotation reduces the movement velocity of wire reeling rack, convenient for adjusting, guarantees precision.It is online by the setting of coarse adjustment axis and fine adjustment shaft The movement velocity of frame is converted, easy to use.

Further, it is connected between the coarse adjustment axis and coarse adjustment helical gear by clutch, the clutch includes The inner ring of brake spring, clutch block and clutch ring, the coarse adjustment axis and clutch ring is rotatablely connected, and the outer ring of the clutch ring is fixed The accommodates plate that oriented coarse adjustment axis direction extends, outer wall and the coarse adjustment helical gear of the accommodates plate are fixedly linked, the accommodates plate and The accommodating chamber for accommodating brake spring and clutch block, described brake spring one end and coarse adjustment axis stationary phase are formed between clutch ring Even, the other end is connected with clutch block and is directed toward the inner wall of accommodates plate, and the inner wall of the accommodates plate is equipped with several and clutch block and matches The control tooth socket of conjunction, the brake spring in the raw when, the clutch block and control tooth socket be detached from.

By using above-mentioned technical proposal, the rotation of coarse adjustment axis generates centrifugal force, and clutch block stretches under the influence of centrifugal force Brake spring, clutch block are gradually moved to the side wall of accommodates plate, until clutch block inlay card continues to rotate coarse adjustment in control tooth socket Axis, clutch block drives the rotation of clutch ring, so that coarse adjustment helical gear be driven to rotate.When rotating fine adjustment shaft, coarse adjustment axis stops operating, this When, lead screw drives coarse adjustment helical gear and the rotation of clutch ring by helical gear one, and clutch block is not contacted with clutch ring, and coarse adjustment axis is not Rotation.By the setting of clutch, the rotation of coarse adjustment axis and fine adjustment shaft is mutually indepedent, when fine adjustment shaft rotates, not will drive Coarse adjustment axis rotation, to reduce interference of the coarse adjustment axis to fine adjustment shaft.

Further, offer threaded hole on the clutch block, the threaded hole internal screw thread is connected with adjustment pin, it is described from It closes spring one end to be connected with coarse adjustment axis, the other end is connected with the end of adjustment pin.

By using above-mentioned technical proposal, adjustment pin is rotated, adjustment pin moves in threaded hole, thus to brake spring Length is adjusted, to change the elastic force of brake spring, is adjusted according to elastic force of the use demand to brake spring, convenient It uses.

Further, the accommodates plate is rotatably connected to the limiting block for blocking accommodating chamber far from the end face of clutch ring Ring.

By using above-mentioned technical proposal, limit baffle ring is blocked and is sealed to accommodating chamber, prevent brake spring and from Block is closed to fall from receiving is intracavitary.

Further, the end of the accommodates plate offers the limiting slot of annular, and the outer ring rotating of the limit baffle ring connects It is connected in limiting slot.

By using above-mentioned technical proposal, limiting slot, which is defined the rotation of limit baffle ring, prevents limit baffle ring stuck.

Further, the limit baffle ring is equipped with several guide grooves matched with clutch block towards the surface of clutch ring, The clutch block is slidably connected in guide groove.

By using above-mentioned technical proposal, the rotation of coarse adjustment axis, clutch block slides in guide groove under the influence of centrifugal force, Guide groove is oriented to and is limited to the motion path of clutch block, and sideslip is prevented.

Further, the inner ring of the clutch ring is fixed with the bearing block in accommodating chamber, installation in the bearing block There is rolling bearing, the end of the coarse adjustment axis is connected with rolling bearing.

By using above-mentioned technical proposal, coarse adjustment axis is connected by rolling bearing with clutch ring, and the rotation of coarse adjustment axis is more Stablize.

Further, it is connected between the fine adjustment shaft and fine tuning helical gear also by clutch.

By using above-mentioned technical proposal, similarly, when coarse adjustment axis rotates, fine adjustment shaft is motionless, to reduce fine adjustment shaft to thick Adjust the interference of axis.

In conclusion the utility model has the following beneficial effects:

1. passing through the setting of coarse adjustment axis and fine adjustment shaft, the rotation of coarse adjustment axis, the movement velocity of wire reeling rack is very fast, and fine adjustment shaft turns Dynamic, the movement velocity of wire reeling rack is slower, and the movement velocity of wire reeling rack is converted, easy to use；

2. fine adjustment shaft and coarse adjustment axis are mutually indepedent, and the two individually rotates by the setting of clutch, will not mutually do It relates to.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment；

Fig. 2 is the structural schematic diagram of control mechanism in embodiment；

Fig. 3 is the connection schematic diagram of limit baffle ring and coarse adjustment axis in embodiment.

In figure, 1, body；11；Wire reeling rack；12, inserting rack；13, falsework；14, conducting block；15, conductive seat；2, lead screw； 21, nut seat；22, helical gear one；23, helical gear two；31, coarse adjustment axis；311, coarse adjustment helical gear；32, fine adjustment shaft；321, it finely tunes Helical gear；41, brake spring；42, clutch block；421, threaded hole；422, adjustment pin；43, clutch ring；44, accommodates plate；441, it controls Tooth socket processed；442, limiting slot；45, accommodating chamber；46, limit baffle ring；461, guide groove；47, bearing block；48, rolling bearing；5, machine Seat；6, workbench；7, molybdenum filament roller；8, driving motor.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment:

A kind of height-adjustable wire cutting machine, such as Fig. 1, including base 5, body 1 and workbench 6.The company of rotation on base 5 It is connected to molybdenum filament roller 7, the horizontally disposed falsework 13 for being directed toward workbench 6 is fixed on body 1, falsework 13 includes wire reeling rack 11 With inserting rack 12, wire reeling rack 11 is connect with 1 vertical sliding of body, and inserting rack 12 is fixedly linked with body 1.Wire reeling rack 11 is far from machine The end of body 1 is equipped with conducting block 14, and conducting block 14 leads to negative electricity, and workbench 6 is equipped with the conductive seat 15 for placing workpiece, leads The logical anode electricity of electric seat 15.Molybdenum filament is pierced by around upper boom from molybdenum filament roller 7 and contacts with conducting block 14, and wears back from lower beam and molybdenum filament Roller 7 is connected, and forms circulation.Molybdenum filament roller 7 rotates, and molybdenum filament is not stalled to move and be cut to workpiece.

Such as Fig. 1 and Fig. 2, body 1 is equipped with the control mechanism that control wire reeling rack 11 moves up and down, and control mechanism includes lead screw 2, coarse adjustment axis 31 and fine adjustment shaft 32.Lead screw 2 is rotationally connected with vertically on body 1, and nut seat 21, wire reeling rack are equipped on lead screw 2 11 are fixedly linked with nut seat 21, and the rotation of lead screw 2 drives wire reeling rack 11 to move up and down.Coarse adjustment axis 31 and fine adjustment shaft 32 and lead screw 2 Transmission is connected, and coarse adjustment axis 31 and the rotation of fine adjustment shaft 32 drive lead screw 2 to rotate, and controls lead screw 2.When coarse adjustment axis 31 rotates, The movement velocity of wire reeling rack 11 is very fast, is used for fast feed；When fine adjustment shaft 32 rotates, the movement velocity of wire reeling rack 11 is slower, uses In accurate positionin.Coarse adjustment axis 31 and fine adjustment shaft 32 are all connected with driving motor 8, and driving motor 8 provides dynamic for the movement of wire reeling rack 11 Power.

Such as Fig. 1 and Fig. 2, coarse adjustment axis 31 and fine adjustment shaft 32 are horizontally disposed with and are rotationally connected on body 1.Coarse adjustment axis 31 puts in machine End in body 1 is connected with coarse adjustment helical gear 311, and the end that fine adjustment shaft 32 is put in body 1 is connected with fine tuning helical gear 321.Lead screw 2 Upper end be fixed with the helical gear one 22 and helical gear two 23 coaxial with lead screw 2.Helical gear 1 is nibbled with 311 phase of coarse adjustment helical gear It closes, and the diameter of helical gear 1 is less than the diameter of coarse adjustment helical gear 311；Helical gear 2 23 is meshed with fine tuning helical gear 321, And the diameter of helical gear 2 23 is greater than the diameter of fine tuning helical gear 321.

Such as Fig. 2, since the diameter of coarse adjustment helical gear 311 is greater than the diameter of helical gear 1, the rotation of coarse adjustment axis 31 one is enclosed, silk The circle number that thick stick 2 rotates is greater than a circle, and the velocity of rotation of lead screw 2 is very fast.Since the diameter of fine tuning helical gear 321 is less than helical gear two 23 diameter, fine adjustment shaft 32 rotate several circles, and the rotation of lead screw 2 one is enclosed, and the velocity of rotation of lead screw 2 is slower.

Such as Fig. 2, it is connected between coarse adjustment axis 31 and coarse adjustment helical gear 311 by clutch, fine adjustment shaft 32 and fine tuning helical teeth It is connected between wheel 321 also by clutch and (hereafter only the connection between coarse adjustment axis 31 and coarse adjustment helical gear 311 is retouched It states, avoids repeating).By the setting of clutch, the rotation of coarse adjustment axis 31 can drive coarse adjustment helical gear 311 to rotate, coarse adjustment helical teeth When 311 rotation of wheel, coarse adjustment axis 31 does not turn；Similarly, the rotation of fine adjustment shaft 32 can drive fine tuning helical gear 321 to rotate, and finely tune helical gear When 321 rotation, fine adjustment shaft 32 does not turn.Coarse adjustment axis 31 and fine adjustment shaft 32 are mutually indepedent, and the two individually controls the rotation of lead screw 2 System, does not interfere.

Such as Fig. 2 and Fig. 3, clutch includes brake spring 41, clutch block 42, clutch ring 43 and limit baffle ring 46.Clutch The outer ring of ring 43 is fixed with the accommodates plate 44 of the annular perpendicular with clutch ring 43, and limit baffle ring 46 is rotationally connected with accommodates plate 44 End face far from clutch ring 43, limit baffle ring 46 are parallel with clutch ring 43.Clutch ring 43, accommodates plate 44 and limit baffle ring 46 it Between form accommodating chamber 45, brake spring 41 and clutch block 42 are set in accommodating chamber 45.

Such as Fig. 2 and Fig. 3, outer wall and the coarse adjustment helical gear 311 of accommodates plate 44 are fixedly linked, and coarse adjustment axis 31 passes through limit baffle ring It is rotatablely connected after 46 with the inner ring of clutch ring 43.Brake spring 41 and clutch block 42 are equipped with three groups and are uniformly connected with coarse adjustment axis 31, 41 one end of brake spring is fixedly linked with coarse adjustment axis 31, and the other end is connected with clutch block 42 and is directed toward the inner wall of accommodates plate 44, holds Receive plate 44 inner wall be equipped with several control tooth sockets 441 matched with clutch block 42.

Such as Fig. 2 and Fig. 3, coarse adjustment axis 31 is rotated, and generates centrifugal force, and clutch block 42 stretches clutch bullet under the influence of centrifugal force Spring 41, clutch block 42 are gradually moved to the side wall of accommodates plate 44, until 42 inlay card of clutch block continues to turn in control tooth socket 441 It uses force and adjusts axis 31, clutch block 42 drives clutch ring 43 and accommodates plate 44 to rotate, to drive coarse adjustment helical gear 311 and 2 turns of lead screw It is dynamic.When lead screw 2 and coarse adjustment helical gear 311 rotate, clutch ring 43 and accommodates plate 44 are rotated, at this point, clutch block 42 not with accommodates plate 44 contacts, therefore, coarse adjustment axis 31 does not rotate.

Such as Fig. 2 and Fig. 3, the inner wall of accommodates plate 44 offers the limiting slot 442 of indent, and limit baffle ring 46 is rotationally connected with limit In the slot 442 of position.Limit baffle ring 46 blocks accommodating chamber 45, prevents brake spring 41 and clutch block 42 from from accommodating chamber 45 Abjection.

Such as Fig. 3, the end face of limit baffle ring 46 towards clutch ring 43 offers three guide grooves 461, and the sliding of clutch block 42 connects It is connected in guide groove 461.Coarse adjustment axis 31 rotates, and clutch block 42 slides in guide groove 461 under the influence of centrifugal force, guide groove The motion path of 461 pairs of clutch blocks 42 is oriented to and is limited, and sideslip is prevented.

Such as Fig. 3, the threaded hole 421 for being directed toward brake spring 41 is offered on clutch block 42,421 internal screw thread of threaded hole is connected with Adjustment pin 422,41 one end of brake spring are connected with coarse adjustment axis 31, and the other end is connected with the end of adjustment pin 422.Rotate adjustment pin 422, adjustment pin 422 moves in threaded hole 421, to the length of brake spring 41 be adjusted, to change clutch bullet The elastic force of spring 41 is adjusted according to elastic force of the use demand to brake spring 41, is easy to use.

Such as Fig. 2, the inner ring of clutch ring 43 is fixed with the bearing block 47 for being directed toward coarse adjustment axis 31, and bearing block 47 is located at accommodating chamber 45 It is interior.Rolling bearing 48 is installed, the outer ring of rolling bearing 48 and the inner wall of bearing block 47 are fixedly linked, coarse adjustment axis in bearing block 47 31 end puts in the inner ring of rolling bearing 48 and is connected with 48 inner ring of rolling bearing.Coarse adjustment axis 31 by rolling bearing 48 with from Cyclization 43 is connected, and the rotation of coarse adjustment axis 31 is more stable.

Specific implementation process: when 11 distance of the wire reeling rack height to be adjusted farther out when, driving motor 8 drive 31 turns of coarse adjustment axis Dynamic, coarse adjustment axis 31 drives coarse adjustment helical gear 311 to rotate by clutch, and coarse adjustment helical gear 311 drives helical gear 1 to rotate, To drive lead screw 2 to rotate, fine adjustment shaft 32 is static, and wire reeling rack 11 is fast moved close to object height.Wire reeling rack 11 is close to target When height, coarse adjustment axis 31 is static, and driving motor 8 drives fine adjustment shaft 32 to rotate, and fine adjustment shaft 32 drives fine tuning oblique by clutch structure Gear 321 rotates, and fine tuning helical gear 321 drives helical gear 2 23 to rotate, so that lead screw 2 be driven to rotate, wire reeling rack 11 is with relatively slow Speed movement, convenient for adjust, guarantee precision.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims (8)

1. a kind of height-adjustable wire cutting machine, including body (1), the body (1) is equipped with wire reeling rack (11), inserting rack (12) and power mechanism, it is characterised in that: the lead screw (2) being vertically arranged, the wire reeling rack are rotatably connected on the body (1) (11) it is connected by nut seat (21) with lead screw (2), the power mechanism includes being rotationally connected with being horizontally disposed on body (1) Coarse adjustment axis (31) and fine adjustment shaft (32), the end of the coarse adjustment axis (31) is equipped with coarse adjustment helical gear (311), the fine adjustment shaft (32) end is equipped with fine tuning helical gear (321), and the end of the lead screw (2) is fixed with to be meshed with coarse adjustment helical gear (311) Helical gear one (22) and with fine tuning helical gear (321) helical gear two (23) that is meshed, the coarse adjustment helical gear (311) it is straight Diameter is greater than the diameter of helical gear one (22), and the diameter of fine tuning helical gear (321) is less than the diameter of helical gear two (23).

2. height-adjustable wire cutting machine according to claim 1, it is characterised in that: the coarse adjustment axis (31) and coarse adjustment It is connected between helical gear (311) by clutch, the clutch includes brake spring (41), clutch block (42) and clutch The outer ring fixation of ring (43), the inner ring rotation connection of the coarse adjustment axis (31) and clutch ring (43), the clutch ring (43) is oriented The accommodates plate (44) that coarse adjustment axis (31) direction extends, outer wall and the coarse adjustment helical gear (311) of the accommodates plate (44) are fixedly linked, The accommodating chamber for accommodating brake spring (41) and clutch block (42) is formed between the accommodates plate (44) and clutch ring (43) (45), described brake spring (41) one end is fixedly linked with coarse adjustment axis (31), and the other end is connected with clutch block (42) and is directed toward appearance Receive the inner walls of plate (44), the inner wall of the accommodates plate (44) is equipped with several control tooth sockets (441) matched with clutch block (42), The brake spring (41) in the raw when, the clutch block (42) and control tooth socket (441) be detached from.

3. height-adjustable wire cutting machine according to claim 2, it is characterised in that: opened up on the clutch block (42) Have threaded hole (421), threaded hole (421) internal screw thread is connected with adjustment pin (422), described brake spring (41) one end and thick Axis (31) are adjusted to be connected, the other end is connected with the end of adjustment pin (422).

4. height-adjustable wire cutting machine according to claim 2, it is characterised in that: the accommodates plate (44) far from from The end face of cyclization (43) is rotatably connected to the limit baffle ring (46) for blocking accommodating chamber (45).

5. height-adjustable wire cutting machine according to claim 4, it is characterised in that: the end of the accommodates plate (44) The limiting slot (442) of annular is offered, the outer ring rotating of the limit baffle ring (46) is connected in limiting slot (442).

6. height-adjustable wire cutting machine according to claim 4, it is characterised in that: limit baffle ring (46) direction The surface of clutch ring (43) is equipped with several guide grooves (461) matched with clutch block (42), and clutch block (42) sliding connects It is connected in guide groove (461).

7. height-adjustable wire cutting machine according to claim 2, it is characterised in that: the inner ring of the clutch ring (43) It is fixed with the bearing block (47) being located in accommodating chamber (45), is equipped with rolling bearing (48) in the bearing block (47), it is described thick The end of axis (31) is adjusted to be connected with rolling bearing (48).

8. height-adjustable wire cutting machine according to claim 2, it is characterised in that: the fine adjustment shaft (32) and fine tuning It is connected between helical gear (321) also by clutch.