阅读说明：本技术 智能数控冷镦机 (Intelligent numerical control cold header ) 是由 陈建德 于 2021-07-09 设计创作，主要内容包括：本发明涉及一种智能数控冷镦机,包括机架,机架设置有用于输送条状原料的送料装置、将条状原料切割成段的切割装置和将成段原料进行成型的成型装置,送料装置包括送料伺服电机、进料减速箱及送料轮组,送料轮组包括相对机架转动且上下排布的上送料轴和下送料轴,上送料轴和下送料轴相对的其中一端分别设置有送料轮,相对的另一端分别设置有相啮合的传动齿轮,送料伺服电机固定于机架并驱动设置有通过进料减速箱连接并与从动齿轮啮合的驱动齿轮。采用上述方案,本发明提供一种便于控制及调整的智能数控冷镦机。(The invention relates to an intelligent numerical control cold header, which comprises a rack, wherein the rack is provided with a feeding device for conveying strip-shaped raw materials, a cutting device for cutting the strip-shaped raw materials into sections and a forming device for forming the section raw materials, the feeding device comprises a feeding servo motor, a feeding reduction box and a feeding wheel set, the feeding wheel set comprises an upper feeding shaft and a lower feeding shaft which rotate relative to the rack and are vertically arranged, one end of the upper feeding shaft, which is opposite to the lower feeding shaft, is respectively provided with a feeding wheel, the other end of the upper feeding shaft, which is opposite to the lower feeding shaft, is respectively provided with a transmission gear which is meshed with the upper feeding shaft and the lower feeding shaft, and the feeding servo motor is fixed on the rack and is driven by a driving gear which is connected with a driven gear through the feeding reduction box and is meshed with the driven gear. By adopting the scheme, the invention provides the intelligent numerical control cold header which is convenient to control and adjust.)

1. The utility model provides an intelligence numerical control cold heading machine, includes the frame, the frame be provided with main motor, be used for carrying the material feeding unit of strip raw materials, cut into the cutting device of section with strip raw materials and carry out fashioned forming device with the segmentation raw materials, its characterized in that: the feeding device comprises a feeding servo motor, a feeding reduction box and a feeding wheel set, wherein the feeding wheel set comprises an upper feeding shaft and a lower feeding shaft which rotate relative to the rack and are vertically arranged, one end of the upper feeding shaft, which is opposite to the lower feeding shaft, is provided with a feeding wheel, the other end of the upper feeding shaft, which is opposite to the lower feeding shaft, is provided with a transmission gear which is meshed with the upper feeding shaft, and the feeding servo motor is fixed on the rack and drives a driving gear which is connected with the feeding reduction box and meshed with the driven gear.

2. The intelligent numerical control cold heading machine according to claim 1, wherein: the feeding wheel sets are two in number and are sequentially arranged along the raw material transmission direction, the rack is provided with a movable shell which is in running fit with the upper feeding shaft, the movable shell is hinged to the rack, the rack is provided with a clamping cylinder which drives the movable shell to swing and move downwards, and the transmission gears of the two lower feeding shafts are respectively meshed with the two sides of the driving gear.

3. The intelligent numerical control cold heading machine according to claim 1, wherein: forming device include clamping jaw seat, forming die, clamping jaw slide and slide servo motor, forming die's quantity for many sets and arrange in the frame in proper order, the clamping jaw slide set up in clamping jaw seat along forming die array orientation, the clamping jaw slide in the clamping jaw slide, the quantity of forming clamping jaw be a plurality of and arrange in the clamping jaw slide along forming die array orientation, slide servo motor drive be provided with the slide rocking arm, the articulated slide link rod that is provided with the clamping jaw slide of the other end that is fixed of slide rocking arm and slide servo motor.

4. The intelligent numerically controlled cold heading machine according to claim 3, wherein: the clamping jaw seat is vertically arranged on the rack in a swinging mode, the rack is hinged with a swinging cylinder, a cylinder shaft of the swinging cylinder is hinged and matched with a swinging end of the clamping jaw seat, limiting blocks are respectively arranged on one side of the swinging end of the clamping jaw seat, a limiting cylinder is correspondingly arranged on the rack and the limiting blocks, and a limiting shaft for limiting the limiting blocks to swing upwards is arranged on the limiting cylinder in a driving mode.

5. The intelligent numerically controlled cold heading machine according to claim 3, wherein: the clamping jaw be provided with the drive end of action when the pressurized, the clamping jaw seat be provided with the clamp plate that opens and shuts and open and shut servo motor, the clamp plate that opens and shuts vertically slide in the clamping jaw seat and with the clamp plate that opens and shuts of drive end conflict, the clamp plate that opens and shuts transversely be provided with the linkage groove, the eccentric drive of servo motor that opens and shuts be provided with the universal driving shaft that inserts the linkage groove.

6. The intelligent numerically controlled cold heading machine according to claim 3, wherein: the forming device comprises a front die and a front die mounting seat, wherein the front die longitudinally moves relative to the frame, the front die mounting seat is used for mounting the front die, the main shaft is provided with an eccentric section, and a front swing arm hinged with the front die mounting seat is sleeved on the eccentric section.

7. The intelligent numerically controlled cold heading machine according to claim 3, wherein: the frame rotate and be provided with by the rotatory main shaft of main motor drive, the main shaft tip extend to the frame outside and the eccentric first drive disk that is provided with, mould forming device include the back mould, the back mould be provided with the ejector pin that vertically slides in the frame, the frame rotate and be provided with the back mould drive shaft, the back mould drive shaft be provided with the back actuating arm of extrusion ejector pin, back mould drive shaft tip extend to the frame outside and be provided with the back transmission arm, first drive disk cover be equipped with back transmission arm articulated back connecting rod.

8. The intelligent numerical control cold heading machine according to claim 1, wherein: the frame be provided with the transfer passage of carrying strip raw materials, cutting device include cutter seat, cutter displacement mechanism and spacing seat, the cutter seat in be provided with annular cutter, cutter displacement mechanism drive cutter seat switch between the position relative with transfer passage and the position relative with forming device, spacing seat be provided with the coaxial spacing post of annular cutter, the frame be provided with and supply the vertical spacing spout of spacing seat, spacing seat along vertically being provided with adjusting rack and cooperation groove, the cooperation groove wear to be equipped with frame normal running fit's regulating spindle, the regulating spindle be provided with adjusting rack mesh and with spacing seat spacing in the adjusting gear of spacing spout.

9. The intelligent numerically controlled cold heading machine according to claim 8, wherein: the frame rotate and be provided with by the rotatory main shaft of main motor drive, the main shaft tip extend to the frame and be fixed with the second driving disc, cutter displacement mechanism including the side seat of moving, the side seat of moving be provided with along the side slide board of longitudinal sliding and along the cutter axle of horizontal sliding, the side slide board towards the cutter axle and along the longitudinal lifting surface that offsets with the cutter axle, the relative lifting surface's of cutter axle other end and cutter holder fixed coordination, the eccentric and articulated cutter connecting rod who is provided with the looks articulated of sideslip board that has the second driving disc.

10. The intelligent numerical control cold heading machine according to claim 1, wherein: the cooling oil cavity is arranged at the bottom in the machine frame, the housing is arranged on the outer side of the machine frame, and a guide slope surface for guiding the cooling oil to the cooling oil cavity is arranged at the bottom of the portion, located outside the cooling oil cavity, of the housing.

Technical Field

The invention relates to the field of cold headers, in particular to an intelligent numerical control cold header.

Background

The cold header is a forging forming device for thickening the top of a bar or a wire at room temperature, and is a special device which is mainly used for upsetting and is specially used for producing fasteners such as nuts and bolts in batches. The cold heading machine adopts a cold heading method to upset the heads of the bolts and the screws, can reduce cutting work as much as possible, is directly molded into required shapes and sizes, can save a large amount of materials, can greatly improve the production efficiency and obviously improve the mechanical strength of the upset parts.

The traditional cold header comprises a feeding device, a cutting device and a forming device, wherein the feeding device feeds materials to equipment, the cutting device cuts strip-shaped raw materials into sections, the sections of the strip-shaped raw materials are formed under the action of the forming device, and finally the strip-shaped raw materials are discharged to an appointed position. This kind of cold heading machine has certain drawback, and each device passes through a plurality of link rods and linkage cooperation by single main motor promptly, and linkage structure is too complicated, causes noise and trouble to increase, and simultaneously, the step of adjusting its one device is too complicated, does not conform to the research and development trend of intelligence, easy operation now.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the intelligent numerical control cold header which is convenient to control and adjust.

In order to achieve the purpose, the invention provides the following technical scheme: including the frame, the frame be provided with main motor, be used for carrying the material feeding unit of strip raw materials, cut into the cutting device of section with strip raw materials and carry out fashioned forming device with the segmentation raw materials, its characterized in that: the feeding device comprises a feeding servo motor, a feeding reduction box and a feeding wheel set, wherein the feeding wheel set comprises an upper feeding shaft and a lower feeding shaft which rotate relative to the rack and are vertically arranged, one end of the upper feeding shaft, which is opposite to the lower feeding shaft, is provided with a feeding wheel, the other end of the upper feeding shaft, which is opposite to the lower feeding shaft, is provided with a transmission gear which is meshed with the upper feeding shaft, and the feeding servo motor is fixed on the rack and drives a driving gear which is connected with the feeding reduction box and meshed with the driven gear.

Through adopting above-mentioned technical scheme, by the rotation of pay-off servo motor control pay-off wheel, change in control and regulation, utilize control system can change the parameter that traditional mechanical structure such as rotational speed, moment is difficult to the adjustment fast, improve equipment intelligence.

The invention is further configured to: the feeding wheel sets are two in number and are sequentially arranged along the raw material transmission direction, the rack is provided with a movable shell which is in running fit with the upper feeding shaft, the movable shell is hinged to the rack, the rack is provided with a clamping cylinder which drives the movable shell to swing and move downwards, and the transmission gears of the two lower feeding shafts are respectively meshed with the two sides of the driving gear.

Through adopting above-mentioned technical scheme, select two sets of pay-off wheelsets to arrange drive gear both sides in respectively with two sets ofly, can carry out the pay-off by two sets of pay-off wheelsets of stable drive of single pay-off servo motor, the structure is more retrencied, simultaneously, by die clamping cylinder drive movable shell swing side downstream, strip raw materials get into between two pay-off wheels when being convenient for and tightly after the strip raw materials gets into, improve the reliability of pay-off.

The invention is further configured to: forming device include clamping jaw seat, forming die, clamping jaw slide and slide servo motor, forming die's quantity for many sets and arrange in the frame in proper order, the clamping jaw slide set up in clamping jaw seat along forming die array orientation, the clamping jaw slide in the clamping jaw slide, the quantity of forming clamping jaw be a plurality of and arrange in the clamping jaw slide along forming die array orientation, slide servo motor drive be provided with the slide rocking arm, the articulated slide link rod that is provided with the clamping jaw slide of the other end that is fixed of slide rocking arm and slide servo motor.

Through adopting above-mentioned technical scheme, by the side of slide servo motor control clamping jaw move, change in control and regulation, utilize control system can change fast and move the parameter that traditional mechanical structure such as range, constantly is difficult to adjust, improve equipment intelligence.

The invention is further configured to: the clamping jaw seat is vertically arranged on the rack in a swinging mode, the rack is hinged with a swinging cylinder, a cylinder shaft of the swinging cylinder is hinged and matched with a swinging end of the clamping jaw seat, limiting blocks are respectively arranged on one side of the swinging end of the clamping jaw seat, a limiting cylinder is correspondingly arranged on the rack and the limiting blocks, and a limiting shaft for limiting the limiting blocks to swing upwards is arranged on the limiting cylinder in a driving mode.

Through adopting above-mentioned technical scheme, the clamping jaw seat that the swing set up is convenient for maintain, by swing cylinder drive, makes the clamping jaw seat can be stably in the pendulum state, and spacing axle of spacing cylinder then carries on spacingly with the clamping jaw seat, guarantees the stability in the working process.

The invention is further configured to: the clamping jaw be provided with the drive end of action when the pressurized, the clamping jaw seat be provided with the clamp plate that opens and shuts and open and shut servo motor, the clamp plate that opens and shuts vertically slide in the clamping jaw seat and with the clamp plate that opens and shuts of drive end conflict, the clamp plate that opens and shuts transversely be provided with the linkage groove, the eccentric drive of servo motor that opens and shuts be provided with the universal driving shaft that inserts the linkage groove.

Through adopting above-mentioned technical scheme, by opening and shutting servo motor control clamping jaw open and shut, change in control and regulation, utilize control system can change the parameter that traditional mechanical structure such as angle, the moment of opening and shutting is difficult to the adjustment, improve equipment intellectuality.

The invention is further configured to: the forming device comprises a front die and a front die mounting seat, wherein the front die longitudinally moves relative to the frame, the front die mounting seat is used for mounting the front die, the main shaft is provided with an eccentric section, and a front swing arm hinged with the front die mounting seat is sleeved on the eccentric section.

By adopting the technical scheme, the front swing arm of the main motor is used for driving the front die, so that more parts are driven while the structure of the main shaft is simplified.

The invention is further configured to: the frame rotate and be provided with by the rotatory main shaft of main motor drive, the main shaft tip extend to the frame outside and the eccentric first drive disk that is provided with, forming device include the back mould, the back mould be provided with the ejector pin of vertically sliding in the frame, the frame rotate and be provided with the back mould drive shaft, the back mould drive shaft be provided with the back actuating arm of extrusion ejector pin, back mould drive shaft tip extend to the frame outside and be provided with the back transmission arm, first drive disk cover be equipped with back transmission arm articulated back connecting rod.

Through adopting above-mentioned technical scheme, the first drive disk of main motor is used for driving the action of ejector pin with drive power, drives more parts when guaranteeing that the main shaft structure is retrencied.

The invention is further configured to: the frame be provided with the transfer passage of carrying strip raw materials, cutting device include cutter seat, cutter displacement mechanism and spacing seat, the cutter seat in be provided with annular cutter, cutter displacement mechanism drive cutter seat switch between the position relative with transfer passage and the position relative with forming device, spacing seat be provided with the coaxial spacing post of annular cutter, the frame be provided with and supply the vertical spacing spout of spacing seat, spacing seat along vertically being provided with adjusting rack and cooperation groove, the cooperation groove wear to be equipped with frame normal running fit's regulating spindle, the regulating spindle be provided with adjusting rack mesh and with spacing seat spacing in the adjusting gear of spacing spout.

Through adopting above-mentioned technical scheme, the mode that the adjusting gear made the longitudinal position of adjusting spacing seat is more convenient, simultaneously, forms the limit structure of spacing seat, avoids its and spacing spout separation, improves regulation stability and structure retrencies nature.

The invention is further configured to: the frame rotate and be provided with by the rotatory main shaft of main motor drive, the main shaft tip extend to the frame and be fixed with the second driving disc, cutter displacement mechanism including the side seat of moving, the side seat of moving be provided with along the side slide board of longitudinal sliding and along the cutter axle of horizontal sliding, the side slide board towards the cutter axle and along the longitudinal lifting surface that offsets with the cutter axle, the relative lifting surface's of cutter axle other end and cutter holder fixed coordination, the eccentric and articulated cutter connecting rod who is provided with the looks articulated of sideslip board that has the second driving disc.

Through adopting above-mentioned technical scheme, the second transmission dish of main motor is used for driving the cutter seat side with drive power and moves, drives more parts when guaranteeing that the main shaft structure is retrencied.

The invention is further configured to: the cooling oil cavity is arranged at the bottom in the machine frame, the housing is arranged on the outer side of the machine frame, and a guide slope surface for guiding the cooling oil to the cooling oil cavity is arranged at the bottom of the portion, located outside the cooling oil cavity, of the housing.

Through adopting above-mentioned technical scheme, because need the cooling oil to continue to cool off in the course of working, so arrange the frame in with the cooling chamber for receive all drippage cooling oil completely, simultaneously, the cooling oil that splashes also can be blockked by the cover shell, converges to the cooling oil chamber under the domatic guide of guide, makes the recovery of cooling oil more comprehensive when avoiding polluting operational environment.

Drawings

FIG. 1 is a first perspective view of an embodiment of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is a perspective view of the embodiment of the present invention with the cover removed;

FIG. 4 is a perspective view of a feeding device in accordance with an embodiment of the present invention;

FIG. 5 is an internal structural view of a feeding device according to an embodiment of the present invention;

FIG. 6 is a perspective view of a jaw receptacle according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of an opening and closing servo motor and a clamping jaw according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a spindle linkage structure according to an embodiment of the present invention;

FIG. 9 is an enlarged view of A in FIG. 8;

fig. 10 is a schematic structural view of the inside of the side shift base in the embodiment of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-10, the invention discloses an intelligent numerical control cold header, which comprises a frame 1, wherein the frame 1 is provided with a main motor 2, a feeding device 3 for conveying strip-shaped raw materials, a cutting device 4 for cutting the strip-shaped raw materials into sections and a forming device 5 for forming the section-shaped raw materials, the feeding device 3 comprises a feeding servo motor 31, a feeding reduction box 32 and a feeding wheel set, the feeding wheel set comprises an upper feeding shaft 33 and a lower feeding shaft 34 which rotate relative to the frame 1 and are arranged up and down, one end of the upper feeding shaft 33 and one end of the lower feeding shaft 34 which are opposite are respectively provided with a feeding wheel 331, the other opposite ends are respectively provided with a transmission gear 332 which is meshed, the feeding servo motor 31 is fixed on the frame 1 and is provided with a driving gear 311 which is connected with the feeding reduction box 32 and is meshed with a driven gear 332 in a driving mode, and the feeding servo motor controls the rotation of the feeding wheel 331, the control system is easier to control and adjust, the parameters which are difficult to adjust by the traditional mechanical structure such as rotating speed and time can be quickly changed, and the intelligence of the equipment is improved.

The quantity of feeding wheelset is two sets and arranges along the raw materials direction of transmission in proper order, frame 1 is provided with the movable shell 35 with last feeding shaft 33 normal running fit, movable shell 35 articulates in the frame, frame 1 is provided with the die clamping cylinder 36 that drives movable shell 35 swing side downstream, the drive gear 331 of two lower feeding shafts 34 meshes with drive gear 311 both sides respectively, select two sets of feeding wheelsets, and arrange two sets of drive gear 311 both sides respectively in, can carry out the pay-off by two sets of feeding wheelsets of stable drive of single pay-off servo motor 31, the structure is more retrencied, simultaneously, drive movable shell 35 swing side downstream by die clamping cylinder 36, strip raw materials get into the back and press from both sides tightly when being convenient for strip raw materials get into between two feeding wheels, improve the reliability of pay-off.

The forming device 5 comprises a plurality of sets of forming dies which are sequentially arranged on the rack 1, the jaw slide rails 514 are arranged on the jaw seat 51 along the arrangement direction of the forming dies, the jaw slide rails 514 slide on the jaw slide rails 514, the plurality of forming jaws 53 are arranged on the jaw slide rails 54 along the arrangement direction of the forming dies, a slide rocker 561 is arranged on the slide servo motor 56 in a driving manner, the slide rocker 561 is hinged to the other end, fixed to the slide servo motor 56, of the other end of the slide rocker 561 and a slide link 562 of the jaw slide 54, the slide servo motor controls the lateral movement of the jaws 53, the control and the adjustment are easier, parameters, such as the lateral movement amplitude and the time, which are difficult to adjust by a traditional mechanical structure can be quickly changed by using a control system, and the intelligence of the equipment is improved.

The vertical swing of clamping jaw seat 51 sets up in frame 1, frame 1 articulates and is provided with swing cylinder 57, swing cylinder 57's cylinder axle and clamping jaw seat 51 swing end hinge cooperation, one of them side of swing end of clamping jaw seat 51 is provided with stopper 511 respectively, frame 1 corresponds with stopper 511 and is provided with spacing cylinder 58, spacing cylinder 58 drive is provided with the spacing axle 581 of restriction stopper 511 upswing, the clamping jaw seat 51 that the swing set up is convenient for maintain, driven by swing cylinder 57, make clamping jaw seat 51 can be stably in the upswing state, and spacing axle 581 of spacing cylinder 58 is then spacing the clamping jaw seat, guarantee the stability in the working process.

The clamping jaw 53 is provided with the drive end 531 that moves when being pressed, the structure of clamping jaw 53 is prior art, not detailed specifically, clamping jaw seat 51 is provided with the clamp plate 512 that opens and shuts and open and shut servo motor 513, the clamp plate 512 that opens and shuts vertically slides in clamping jaw seat 51 and contradicts with drive end 531, the clamp plate 512 that opens and shuts transversely is provided with linkage groove 5121, servo motor 513 that opens and shuts is eccentric drive and is provided with inserted universal driving shaft 5131, by the opening and shutting of servo motor 513 control clamping jaw 53, it is easier to control and adjust, can change the angle of opening and shutting, the parameter that traditional mechanical structure such as moment is difficult to adjust, improve equipment intelligence.

The machine frame 1 is rotatably provided with a main shaft 11 driven by a main motor 2 to rotate, the forming device 5 comprises a front die 55 moving longitudinally relative to the machine frame 1 and a front die mounting seat 551 for mounting the front die 55, the main shaft 11 is provided with an eccentric section 111, the eccentric section 111 is sleeved with a front swing arm 112 hinged with the front die mounting seat 551, the front swing arm 112 of the main motor 2 is used for driving the front die 55 by driving force, and more components are driven while the structure of the main shaft 11 is simplified.

The machine frame 1 is rotatably provided with a main shaft 11 driven to rotate by a main motor, the end part of the main shaft 11 extends out of the machine frame 1 and is eccentrically provided with a first transmission disc 113, the forming device 5 comprises a rear die 59, the rear die 59 is provided with a top rod 591 which longitudinally slides in the machine frame 1, the machine frame 1 is rotatably provided with a rear die driving shaft 12, the rear die driving shaft 12 is provided with a rear driving arm 121 which extrudes the top rod 591, the end part of the rear die driving shaft 12 extends out of the machine frame 1 and is provided with a rear transmission arm 122, the first transmission disc 113 is sleeved with a rear connecting rod 114 which is hinged with the rear transmission arm 122, the first transmission disc 113 of the main motor 2 uses driving force for driving the top rod 591 to act, and the main shaft 11 is guaranteed to be structurally simplified and simultaneously drives more components.

The frame 1 is provided with a conveying channel for conveying strip raw materials, the cutting device 4 comprises a cutter seat 41, a cutter displacement mechanism and a limiting seat 42, an annular cutter 411 is arranged in the cutter seat 41, the cutter displacement mechanism drives the cutter seat 41 to switch between a position opposite to the conveying channel and a position opposite to the forming device 5, the limiting seat 42 is provided with a limiting column 421 coaxial with the annular cutter 411, the frame 1 is provided with a limiting sliding groove 13 for the longitudinal direction of the limiting seat 42, the limiting seat 42 is longitudinally provided with an adjusting rack 421 and a matching groove 422, the matching groove 422 is provided with an adjusting shaft 423 which is in running fit with the frame 1, the adjusting shaft 423 is provided with an adjusting gear 424 which is meshed with the adjusting rack 421 and limits the limiting seat 42 to the limiting sliding groove 13, the adjusting gear 424 enables the longitudinal position of the limiting seat 42 to be adjusted more conveniently, and simultaneously, a limiting structure of the limiting seat 42 is formed to avoid the limiting structure from being separated from the limiting sliding groove 13, the regulation stability and the structural simplification are improved.

The machine frame 1 is rotatably provided with a main shaft 11 driven by a main motor 2 to rotate, the end part of the main shaft 11 extends to the machine frame 1 and is fixed with a second transmission disc 115, the cutter displacement mechanism comprises a side shifting seat 43, the side shifting seat 43 is provided with a side sliding plate 431 sliding along the longitudinal direction and a cutter shaft 432 sliding along the transverse direction, the side sliding plate 431 faces the cutter shaft 432 and is longitudinally provided with a relief surface 4311 abutting against the cutter shaft 432, the other end of the cutter shaft 432 opposite to the relief surface 4311 is fixedly matched with the cutter seat 41, the second transmission disc 115 is eccentric and is hinged with a cutter connecting rod 116 hinged with the side sliding plate 431, the second transmission disc 115 of the main motor 2 uses driving force for driving the cutter seat 41 to move laterally, and the structure of the main shaft 11 is guaranteed to be simple and simultaneously more components are driven.

The bottom is provided with cooling oil chamber 14 in frame 1, frame 1 outside is equipped with housing 15, the part bottom that housing 15 is located cooling oil chamber 14 outside is provided with the domatic 151 of guide with the cooling oil to cooling oil chamber 14 guide, because need the cooling oil to last the cooling in the course of working, the event is arranged frame 1 in with the cooling chamber in, a cooling oil for receiving all drippage completely, and simultaneously, the cooling oil that splashes also can be blockked by housing 15, converge to cooling oil chamber 14 under the guide of guide domatic 151, make the recovery of cooling oil more comprehensive when avoiding polluting operational environment.