CN211991118U - Numerical control double-end double-sided fore shaft milling machine - Google Patents

Abstract

The utility model discloses a numerical control double-end two-sided fore shaft milling machine, relate to numerical control turn-milling processing technology field, it mainly includes the frame and sets up the feed channel in the frame, install two sets of units that mill in the frame, two sets of units that mill are located the both sides of feed channel respectively, it includes the stand to mill the unit, hold-down mechanism and cutter head mechanism, the stand is located feed channel one side, hold-down mechanism and cutter head mechanism all can install on the stand vertically with sliding, cutter head mechanism includes the headstock with stand sliding connection and installs two sets of cutter head subassemblies at the headstock output, the stand is close to and installs on the lateral wall of feed channel one side and mills dark fender iron mechanism, hold-down mechanism is located the top of milling dark fender iron mechanism, two sets of cutter head subassemblies are located the both sides of milling dark fender iron mechanism respectively. The utility model discloses can carry out milling process to the both ends of steel, reach the operation mode that the double-end milled the purpose in the relative field and not only reduced the area of equipment, process more stable, efficiency is higher moreover.

Description

Numerical control double-end double-sided fore shaft milling machine

Technical Field

The utility model relates to a numerical control turn-milling processing technology field, concretely relates to two-sided fore shaft milling machine of numerical control double-end.

Background

The fore shaft milling machine is also called fore shaft machine, mainly apply to the milling process operation of the steel material end in the steel construction field, especially the H-shaped steel or I-shaped steel end milling process operation. At present, a domestic fore shaft milling machine can only mill one side or two sides of a single head of steel, and when milling of one side or two sides of the other head of steel is needed, the steel needs to be turned around or reversed, and then double-head milling operation can be completed. For solving this problem, the mode commonly used in the field adopts and installs the transfer roller way between two fore shaft machines, steel conveys another fore shaft machine department again after one end processing finishes and processes, though avoid numerous switching-over problem, this kind of operating means can increase the whole area of equipment after all, especially to the longer condition of steel, can occupy the overall arrangement in the factory building greatly, and steel is carrying out both ends processing, need forward and reverse conveying, increased the control degree of difficulty on the one hand, on the other hand transmission stability can not be guaranteed.

In view of this, it is necessary to design a numerical control fore shaft milling machine that can mill both ends of steel.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-sided fore shaft milling machine of numerical control double-end, this fore shaft milling machine can carry out milling process to the both ends of steel, and the operating means who reaches the double-end purpose of milling in the relative field has not only reduced the area of equipment, processes more stably moreover, efficiency is higher.

The utility model aims at realizing through the following technical scheme: a numerical control double-end double-sided locking milling machine comprises a machine frame, wherein one side of the machine frame is provided with a feeding hole, the other side of the machine frame is provided with a discharging hole, a feeding channel for conveying materials is formed between the feeding hole and the discharging hole of the machine frame, conveying mechanisms are arranged at the positions of the feeding hole and the discharging hole of the machine frame, two groups of milling units are arranged on the machine frame and are respectively positioned on two sides of the feeding channel, each milling unit comprises an upright post, a pressing mechanism and a milling head mechanism, the upright post is positioned on one side of the feeding channel between the feeding hole and the discharging hole conveying mechanism, the pressing mechanism and the milling head mechanisms can be vertically and slidably arranged on the upright post, the pressing mechanism is positioned above the milling head mechanism, the milling head mechanism comprises a power box in sliding connection with the upright post and two groups of milling head assemblies arranged at, the pressing mechanism is located above the deep stop iron milling mechanism, and the two groups of milling head assemblies are located on two sides of the deep stop iron milling mechanism respectively.

Furthermore, the rack comprises a bottom frame and a top frame fixed above the bottom frame through a plurality of vertical beams, the top frame comprises at least one X-axis beam and at least one Y-axis beam, one group of milling units is slidably mounted between the X-axis beam and the bottom frame, a first power assembly used for driving the group of milling units to slide back and forth along the transmission direction of the feeding channel is mounted on the X-axis beam, the other group of milling units is slidably mounted between the Y-axis beam and the bottom frame, and a second power assembly used for driving the group of milling units to slide along the direction close to or far away from the feeding channel is mounted on the Y-axis beam.

Furthermore, hold-down mechanism includes slide and expansion bend, and slide one side and stand are close to the lateral wall sliding fit of feed passageway one side, the stiff end and stand upper portion or top fixed connection of expansion bend, the flexible end and the slide upper portion of expansion bend are connected and can promote the slide and slide from top to bottom along the stand lateral wall, the clamp plate is installed to the bottom of slide.

Further, mill dark stop iron mechanism and include positioning seat, baffle casing and install the clamping component in the baffle casing, the positioning seat is fixed on the stand lateral wall, and the positioning seat all articulates along the both sides of feed channel transmission direction has the swing arm that can rotate towards feed channel one side, clamping component includes telescoping cylinder, curved boom and clamping bar, the clamping bar is fixed between the swing arm of both sides, and the cylinder end of telescoping cylinder articulates on the stand lateral wall, and the piston end of telescoping cylinder articulates with the one end of curved boom, the curved boom other end and clamping bar middle part fixed connection, the lower part of baffle casing is located one side that the telescoping cylinder is close to feed channel, and baffle casing lower part and stand lateral wall fixed connection, the upper portion of baffle casing is located one side that the clamping bar is close to feed channel, and baffle casing upper portion install and form the splint head in clamp material clearance between the clamping bar.

Further, the material clamping gap is located right below the pressing mechanism.

Further, mill dark stop iron mechanism still includes drive assembly, and drive assembly includes driving motor and a plurality of transfer roller, and a plurality of transfer rollers all rotationally install on the stand is close to the lateral wall of feed passageway one side through the roller, and a plurality of transfer rollers arrange side by side between positioning seat and clamping bar along feed passageway direction of transmission, driving motor all passes through the belt pulley assembly linkage with the roller of all transfer rollers.

Furthermore, one side of the power box is in sliding fit with the side wall of the stand column, which is far away from one side of the feeding channel, a screw rod transmission mechanism for driving the power box to slide up and down is installed on the side wall of the stand column, which is far away from the feeding channel, the two groups of milling head assemblies are installed on one side of the power box, which is close to the feeding channel, and the two groups of milling head assemblies are respectively located on two sides of the deep milling stop iron mechanism along the transmission direction of the feeding channel.

Further, the cutter head assembly comprises a first cutter head, a second cutter head, a third cutter head and a retaining sleeve which are sequentially arranged from top to bottom, the first cutter head, the second cutter head and the third cutter head are rotatably connected with the output end of the power box, and the retaining sleeve is adjustably installed on the side wall of the power box.

Furthermore, the power box is provided with an adjusting oil cylinder which can at least enable the second milling head and the third milling head to extend and retract towards the direction close to or far away from the feeding channel.

Further, conveying mechanism is roller conveyor, is provided with at least one location fixture block of arranging along its direction of delivery on the roller conveyor, and the location fixture block includes card strip and fixes the stabilizer blade at card strip lower surface, and the stabilizer blade is fixed on roller conveyor between the adjacent cylinder on surperficial, and the length direction of card strip is parallel to each other with roller conveyor's direction of delivery.

The embodiment of the utility model provides a beneficial effect that fore shaft milling machine has is:

1. the two groups of milling units are arranged on the feeding channel, the milling head mechanism in each group of milling units comprises two groups of milling head assemblies, after the double-sided milling of one end of the steel is finished, the steel is continuously fed to a specified station, and then the other end of the steel can be milled, so that the aim of double-ended double-sided processing of the steel on the premise of only adopting one machine is fulfilled, compared with other modes in the prior art, the single-direction feeding mode has the advantage of small occupied area of equipment, the single-side feeding mode can not only ensure the stability of steel conveying and higher processing precision, but also does not need reversing transmission or turning transmission, and the higher overall operation efficiency can be ensured;

2. the first power assembly is arranged on the top frame, so that one group of milling units can move or adjust in the X-axis direction, and the milling operation of the bevel opening steel is adapted; the second power assembly is arranged, so that the other group of milling units can move or adjust in the Y-axis direction, and the purpose of milling steel with different width sizes is achieved;

3. the pressing mechanism is arranged, so that the displacement of steel in the vertical (Y-axis) direction can be prevented, the processing stability of the steel is ensured, and the deep stop iron milling mechanism is matched, so that the displacement of the steel in the vertical (Y-axis) direction and the transverse (X-axis) direction can not be generated during processing, and the sufficient stability of the steel is greatly ensured, so that higher processing precision can be obtained;

4. through the transmission assembly arranged in the milling deep stop iron mechanism, the conveying precision and conveying smoothness of the whole process of machining the other end of the steel can be guaranteed by continuously feeding the steel when one end of the steel is machined, so that the higher positioning precision of the steel can be guaranteed when the other end of the steel is machined, and the high precision of the whole milling operation is guaranteed.

Drawings

Fig. 1 is a schematic structural view of a fore shaft milling machine provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of the fore-and-aft milling machine shown in FIG. 1;

fig. 3 is an assembly schematic view of the stand column and the pressing mechanism provided in the embodiment of the present invention;

fig. 4 is a schematic view of the matching positions of two sets of milling head mechanisms according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a milling head mechanism according to an embodiment of the present invention;

fig. 6 is an internal structural schematic diagram of the deep stop mechanism for milling provided by the embodiment of the present invention.

The labels in the figure are: 1-a frame; 2-a protective outer cover; 3-a conveying mechanism; 4-a feeding channel; 5-a milling unit; 6-milling a deep stop iron mechanism; 11-a chassis; 12-X axis beam; 13-Y-axis beam; 14-a second power assembly; 15-a first power assembly; 16-vertical beams; 31-positioning a fixture block; 51-a column; 52-a hold down mechanism; 53-a milling head mechanism; 61-a baffle housing; 62-a clamping plate head; 63-positioning seat; 64-swing arm; 65-telescopic cylinder; 66-bent arm; 67-clamping bar; 68-a transfer roll; 69-a drive motor; 521-a retractor; 522-a slide; 523-pressing plate; 531-power box; 532-a cutter head assembly; 5311-a gear box; 5312-an active motor; 5313 adjusting the oil cylinder; 5314-an output; 5321-a first milling head; 5322-a second milling head; 5323-a third milling head; 5324 stop sleeve.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside" and "outside" are used for indicating the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the utility model is usually placed when using, and are only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

The terms "substantially", "essentially", and the like are intended to indicate that the relative terms are not required to be absolutely exact, but may have some deviation. For example, "substantially parallel" does not merely mean absolute parallelism, and there is generally a certain deviation because absolute parallelism is difficult to achieve in actual production and operation. Therefore, "substantially parallel" includes the case where there is a certain deviation as described above, in addition to the absolute parallel.

In the description of the present invention, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be connected internally or indirectly. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

Referring to fig. 1 and fig. 2, the numerical control double-ended double-sided locking milling machine provided in this embodiment includes a frame 1 having a feeding port on one side and a discharging port on the other side, a feeding channel 4 for material transmission is formed between the feeding port and the discharging port of the frame 1, the feeding port and the discharging port are respectively located on the front side and the rear side of the frame 1, or on the front left side or the front side and the rear side of the frame 1, and the feeding port and the discharging port are respectively located on the front side and the rear side of the frame 1 in the direction in which the frame is normally used according to the design. The feeding port and the discharging port of the frame 1 are both provided with a conveying mechanism 3 for conveying steel materials into the feeding port and outputting the steel materials from the discharging port, the conveying mechanism 3 may be a belt conveyor, a scraper conveyor or a roller conveyor, etc., in order to ensure sufficient supporting strength and conveying stability, the roller conveyor is preferred in the embodiment, and sufficient support can be provided for the steel materials, especially for the H-shaped steel materials. In order to further ensure that steel can obtain better conveying stability on the roller conveyor and the phenomenon of large-amplitude deviation cannot occur on the roller, at least one positioning fixture block 31 arranged along the conveying direction of the roller conveyor is arranged on the roller conveyor, the number of the positioning fixture blocks 31 is arranged according to the conveying length, and only the requirement that all the positioning fixture blocks 31 are arranged in a head-tail contact or non-contact manner along the conveying direction is met. All positioning fixture blocks 31 are located on one side of the roller surface of the roller conveyor, and limit one side edge of the H-shaped steel, that is, the H-shaped steel is placed on the roller conveyor in an H shape, the inner edge of the side plate on the left side or the right side of the H-shaped steel is in contact friction with the outer edge of the positioning fixture block 31, and the positioning fixture block 31 serves as a guide rail. In order to ensure that the positioning clamping block 31 has adjustable and detachable functions, in this embodiment, the positioning clamping block 31 includes a clamping strip and two support legs fixed on the lower surface of the clamping strip, the clamping strip is a strip-shaped body with a rectangular cross section, the length direction of the clamping strip is parallel to the conveying direction of the roller conveyor, the support legs are strip-shaped and detachably fixed on the surface between the adjacent rollers on the roller conveyor through bolts, a plurality of rows of screw hole groups are processed on the surface between the adjacent rollers, and the positions of the whole positioning clamping block 31 in the width direction of the roller conveyor can be adjusted by screwing the support legs with screw holes in different rows through bolts, so as to adapt to steel conveying operations of different sizes.

In addition, the whole rack 1 is provided with the protective outer cover 2 arranged around the circumference of the rack, so that the moving components in the rack 1 can be separated to a certain extent, the safety of the working environment is improved, and the influence of external force factors on the moving components in the rack 1 is also prevented. In the present embodiment, the frame 1 includes a bottom frame 11 and a top frame fixed above the bottom frame 11 by four vertical beams 16 fixedly installed at four corners of the bottom frame 11, the top frame may adopt a T-shaped, i-shaped or "ii" structure, that is, at least one X-axis beam 12 and at least one Y-axis beam 13, and in the present embodiment, an i-shaped structure is adopted, that is, the top frame includes two X-axis beams 12 and one Y-axis beam 13. The feeding channel 4 between the two groups of conveying mechanisms 3 is an operation space for milling the H-shaped steel, in order to mill the single end of the H-shaped steel at each time, the two groups of milling units 5 are installed on the rack 1, the two groups of milling units 5 are respectively positioned on the left side and the right side of the transmission direction of the feeding channel 4, and the two groups of milling units 5 work simultaneously during each single-end machining process, so that the single-end double-side milling can be carried out.

In order to achieve the purpose of milling steel materials with different width sizes and milling steel materials with oblique openings, one group of milling units 5 is slidably mounted between an X-axis beam 12 and an underframe 11, a first power assembly 15 for driving the group of milling units 5 to slide back and forth along the transmission direction (front and back direction) of a feeding channel 4 is mounted on the X-axis beam 12, the other group of milling units 5 is slidably mounted between a Y-axis beam 13 and the underframe 11, and a second power assembly 14 for driving the group of milling units 5 to slide along the direction (left and right direction) close to or far away from the feeding channel 4 is mounted on the Y-axis beam 13. The two sets of milling units 5 and the bottom frame 11 are slidably connected in the form of a sliding rail and a sliding seat, or in the form of a sliding groove and a pulley, which is not limited herein, and similarly, the two sets of milling units 5 and the X-axis beam 12 and the Y-axis beam 13 may also be slidably connected in the form of a sliding rail and a sliding seat, or in the form of a sliding groove and a pulley. In the embodiment, the first power assembly 15 mounted on the X-axis beam 12 and the second power assembly 14 mounted on the Y-axis beam 13 may be in the form of linear driving mechanisms such as an electric telescopic rod, a telescopic cylinder or cylinder, a motor and a pulley assembly, and in order to ensure reliable transmission and a long transmission distance, the first power assembly 15 and the second power assembly 14 are both in the form of a motor and a screw transmission mechanism, so that not only stable sliding of the two sets of milling units 5 can be ensured, but also a long sliding stroke can be realized. When the H-shaped steel with different width sizes needs to be adapted to milling, the milling unit 5 at the X-axis beam 12 is kept still, and the milling unit 5 at the Y-axis beam 13 is adjusted to slide left and right to achieve the purpose of processing the steel with different width sizes; when the bevel H-shaped steel (the end part of the steel is an inclined plane) needs to be milled, the milling unit 5 at the Y-axis beam 13 is kept still, and the milling unit 5 at the X-axis beam 12 is adjusted to slide back and forth, so that the bevel steel can be machined.

In order to ensure accurate positioning and stable clamping of the steel during processing, a single group of milling units 5 is used for explanation, each milling unit 5 comprises an upright 51, a pressing mechanism 52 and a milling head mechanism 53, the upright 51 is located on the left side or the right side of the feeding channel, the upright 51 is arranged between the top frame and the bottom frame 11 in a sliding manner in any one of the sliding connection manners, the pressing mechanism 52 and the milling head mechanism 53 are vertically and slidably mounted on the upright 51, the pressing mechanism 52 is located above the milling head mechanism 53, the pressing mechanism 52 mainly firmly presses the single-sided upper surface of the steel, please refer to fig. 3, the pressing mechanism 52 comprises a sliding seat 522 and a telescopic device 521, one side of the sliding seat 522 is in sliding fit with the side wall (on the inner wall) of the upright 51 close to the feeding channel 4, the sliding fit manner can be realized in the form of a sliding rail and a sliding seat, or can be realized in the form of a, the device can also be realized in the form of a sliding plate and a sliding chute, the fixed end of the expansion piece 521 is fixedly connected with a support plate at the top of the upright post 51, the support plate top frame is in sliding connection, the expansion end of the expansion piece 521 is connected with the upper part of the sliding seat 522 and can push the sliding seat 522 to slide up and down along the side wall of the upright post 51, the expansion piece 521 can be any one of the forms of an electric expansion rod, an expansion oil cylinder, an expansion air cylinder, a motor-matched belt pulley assembly and a motor-matched screw rod transmission mechanism, the form of the hydraulic oil cylinder is preferred, a pressing plate 523 is installed at the bottom of the sliding seat 522, a pressing opening matched with the upper surface of a single side of the H-shaped steel is processed on the lower surface of the pressing plate 523, the longitudinal section of the pressing opening is triangular, when the expansion piece 521 extends and drives the sliding seat 522 to slide down, the pressing opening, thereby ensuring the processing stability of the steel.

In order to fix the lower part of the steel material and prevent the steel material from displacement in a vertically downward direction and in a transverse direction (X axis), referring to fig. 5 and 6, a depth milling iron blocking mechanism 6 is installed on a side wall of the upright post 51 close to the feeding channel 4, specifically, the depth milling iron blocking mechanism 6 includes a positioning seat 63, a baffle shell 61 and a clamping assembly installed in the baffle shell 61, the positioning seat 63 has a substantially U-shaped cross section, the middle part of the positioning seat 63 is fixed on an inner side wall of the upright post 51 through a fastener (bolt) or by welding, two ends (sides) of the positioning seat 63 are extended towards one side of the feeding channel 4 and distributed along the transmission direction of the feeding channel 4, two ends (sides) of the positioning seat 63 are hinged with a swing arm 64 capable of rotating towards one side of the feeding channel 4, the clamping assembly includes a telescopic cylinder 65, a bent arm 66 and a clamping rod 67, the clamping rod 67 is fixed between the swing arms 64 on the two sides, the length direction of the clamping rod 67 is parallel to the transmission direction of the feeding channel 4, the telescopic cylinder 65 is in a cylinder form, the cylinder end of the telescopic cylinder 65 is hinged to the side wall of the upright post 51 through a hinged support, the piston end of the telescopic cylinder 65 is hinged to one end of the bent arm 66, the bent arm 66 can be in a single form or in a combined form that two or more of the bent arms are parallel to each other and fixed to each other through a short shaft, the other end of the bent arm 66 is fixedly connected with the middle of the clamping rod 67, and the fixed connection mode is preferably welding. The baffle shell 61 is roughly L-shaped in longitudinal section, the baffle shell 61 is positioned on one side of the telescopic cylinder 65 close to the feeding channel 4, a lower transverse supporting beam of the baffle shell 61 is fixedly screwed or welded with the side wall of the upright post 51, an upper vertical supporting beam of the baffle shell 61 is positioned on one side of the clamping rod 67 close to the feeding channel 4, and the top of the baffle shell 61 is provided with a clamping plate head 62 forming a clamping gap with the clamping rod 67. The clamp plate head 62 is detachably fixed on the top of the baffle shell 61 through a bolt, the clamp plate head 62 and the clamp rod 67 are located on the same horizontal working surface, when the telescopic cylinder 65 retracts, the clamp rod 67 can approach the clamp plate head 62 and narrow a clamp gap, and the clamp gap is located right below a pressing plate in the pressing mechanism 52, so that the single-side bottom of the H-shaped steel is clamped, and the H-shaped steel is prevented from being displaced in a vertical downward direction and being displaced in a transverse (X-axis) direction.

In order to enable the processed H-shaped steel to continue to be fed towards one side of the conveying direction of the feeding channel 4, the deep iron blocking milling mechanism 6 further comprises a transmission assembly, the transmission assembly comprises a transmission motor 69 and a plurality of transmission rollers 68, the plurality of transmission rollers 68 are rotatably mounted on the side wall of the upright post 51 close to one side of the feeding channel 4 through roller shafts and bearing assemblies, the plurality of transmission rollers 68 are uniformly arranged between the positioning seat 63 and the clamping rod 67 side by side along the conveying direction of the feeding channel 4, preferably, the number of the transmission rollers 68 is three, and the three transmission rollers 68 are located between the swing arms 64 on the two sides. The transmission motor 69 is linked with the roll shafts of all the conveying rollers 68 through a belt pulley assembly, the control motor 69 is started, and all the conveying rollers 68 start synchronous and same-direction transmission, so that the steel materials are continuously fed along one side of the transmission direction of the feeding channel 4.

In order to achieve the purpose of performing double-head milling on steel materials continuously fed, please refer to fig. 4 and 5, the milling head mechanism 53 includes a power box 531 slidably connected to the upright 51 and two sets of milling head assemblies 532 mounted at output ends 5314 at two sides of the power box 531, an inner side of the power box 531 is slidably fitted to a side wall of the upright 51 far from the feeding channel 4, the sliding fitting is in any one of the above-mentioned sliding connection manners, a screw rod transmission mechanism for driving the power box 531 to slide up and down is mounted on a side wall of the upright 51 far from the feeding channel 4, the two sets of milling head assemblies 532 are both mounted at an inner side of the power box 531, i.e. at a side close to the feeding channel 4, specifically, the two sets of milling head assemblies 532 are respectively located at two sides of a baffle shell 61 in the milling depth stop iron mechanism 6, and the two sets of milling head assemblies 532 are distributed. When the H-shaped steel is conveyed into the feeding channel 4 from the conveying mechanism 3 at one side, one end of the H-shaped steel crosses the milling head assembly 532 in the previous group and stays on the material clamping gap in the deep iron blocking milling mechanism 6, the end part of the H-shaped steel is milled by the milling head assembly 532 in the next group, after the milling is finished, the H-shaped steel is continuously fed, one end of the H-shaped steel stays on the material clamping gap in the deep iron blocking milling mechanism 6, the other end part of the H-shaped steel is milled by the milling head assembly 532 in the previous group, and finally the purpose of double-end and double-side processing of the steel is achieved on the premise of single-side transmission by adopting one milling machine. In this embodiment, the power box 531 is in the form of a gear transmission box 5311, which uses an external driving motor 5312 as power input, and through mutual transmission between gears, a plurality of output shafts are arranged at both ends of the inner side, i.e. both ends in the transmission direction of the feeding channel 4, as output ends 5314, and the milling head assembly 532 is installed on the output ends 5314, so that the purpose of multi-shaft output can be achieved on the premise of one power input, and not only the power input of the power box 531 is reduced, but also the floor area of the power box 531 is reduced.

For a conventional milling process of H-shaped steel, machining of a groove, an end face and an arc groove of an edge plate is generally involved, in this embodiment, the milling head assembly 532 includes a first milling head 5321, a second milling head 5322, a third milling head 5323 and a retaining sleeve 5324 which are sequentially arranged from top to bottom, wherein the first milling head 5321, the second milling head 5322 and the third milling head 5323 may be arranged in an alternative sorting manner, and in this embodiment, preferably, the first milling head 5321 is a conical milling cutter, the second milling head 5322 is a disc milling cutter, and the third milling head 5323 is a cylindrical milling cutter. The output end 5314 of each side of the power box 531 comprises three output shafts, and the first milling head 5321, the second milling head 5322 and the third milling head 5323 are fixedly sleeved and connected with the three output shafts, so that the end parts of the H-shaped steel can be subjected to milling operation of grooves, end faces and side plate arc grooves. The blocking sleeve 5324 is fixed at the bottom of the power box 531 and is connected with the bottom of the power box 531 in an adjustable manner, the blocking sleeve 5324 is used for limiting the end portion of the H-shaped steel, namely determining the initial position of feed operation, specifically, a transverse sliding block capable of sliding along the transmission direction of the feeding channel 4 is installed at the bottom of the power box 531 right below the third milling head 5323, a support is fixed on one side, namely the outer side, of the transverse sliding block away from the power box 531, a support shaft is fixed on the outer side of the support shaft, the blocking sleeve 5324 is detachably sleeved on the support shaft, and when one end of the steel or the plate is fed and abuts against the blocking sleeve 5324, the positioning of the processing end of the steel or the plate to the. When the milling depth needs to be adjusted, a servo motor screw rod mechanism for driving the transverse sliding block to slide is installed at the bottom of the power box 531, a screw rod in the servo motor screw rod mechanism is connected with the transverse sliding block (serving as a screw nut) in a matched mode, the output end of a servo motor is connected with one end of the screw rod through a belt pulley assembly, the servo motor is started to rotate, the transverse sliding block can be controlled to move left and right, and therefore the position of the blocking sleeve 5324 is controlled to be adjusted to an accurate milling deep processing position. In order to enable the retaining sleeve 5324 to have a telescopic function and facilitate feeding or retracting, a longitudinal sliding block is slidably arranged on one side of the bottom of the power box 531, which is close to the feeding channel 4, through a dovetail sliding groove, the transverse sliding block and the servo motor screw rod mechanism are both arranged on the longitudinal sliding block, and a telescopic oil cylinder for driving the longitudinal sliding block to slide is arranged on the other side of the bottom of the power box 531 to control the telescopic oil cylinder to stretch so as to achieve the purpose of controlling the retaining sleeve 5324 to stretch.

When one end of steel is machined, the first milling head 5321, the second milling head 5322 and the third milling head 5323 are required to be pushed towards one side of the feeding channel 4 in time, in this embodiment, an adjusting oil cylinder 5313 which can enable the second milling head 5322 and the third milling head 5323 to stretch and retract towards the direction close to or away from the feeding channel 4 is installed on the power box 531, a piston rod of the adjusting oil cylinder 5313 is connected with a transmission shaft connected with the corresponding milling head through a connecting piece, the connecting piece can be an end face bearing, a universal joint, a sleeve embedded with a bearing, a nut seat and the like, and can realize a coupling, one end of the connecting piece is fixed, the other end of the connecting piece can rotate and is connected, a shaft sleeve is installed on the transmission shaft through a spline sleeve, a gear and other gears are machined on the shaft sleeve to achieve the purpose of mutual transmission, and the structural form can ensure that the milling head has the stretching. The telescopic mode of the first milling head 5321 can be the same as that of the second milling head 5322, in this embodiment, the telescopic adjustment power input of the first milling head 5321 adopts a motor-matched screw transmission mechanism instead of the adjustment cylinder 5313, which has the advantages of larger moving stroke and higher control precision, and after the first milling head 5321 is controlled to a precise position, the second milling head 5322 and the third milling head 5323 can be telescopic to a designated processing position according to the precise position.

The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and the utility model should be covered in the protection scope of the present invention. It should be noted that structures or components illustrated in the drawings are not necessarily drawn to scale, and descriptions of well-known components and processing techniques and technologies are omitted to avoid unnecessarily limiting the invention.

Claims (10)

1. The utility model provides a numerical control double-end two-sided fore shaft milling machine which characterized in that: the milling machine comprises a rack, wherein a feeding port is formed in one side of the rack, a discharging port is formed in the other side of the rack, a feeding channel for conveying materials is formed between the feeding port and the discharging port of the rack, conveying mechanisms are arranged at the positions of the feeding port and the discharging port of the rack, two groups of milling units are arranged on the rack and are respectively positioned on two sides of the feeding channel, each milling unit comprises an upright post, a pressing mechanism and a milling head mechanism, the upright post is positioned on one side of the feeding channel between the feeding port and the discharging port conveying mechanism, the pressing mechanisms and the milling head mechanisms can be vertically and slidably mounted on the upright posts, the pressing mechanisms are positioned above the milling head mechanisms, each milling head mechanism comprises a power box in sliding connection with the upright posts and two groups of milling head assemblies mounted at the output ends of the power boxes, a milling depth stop iron mechanism is mounted on the, and the two groups of milling head assemblies are respectively positioned at two sides of the deep milling stop iron mechanism.

2. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 1, wherein: the frame includes the chassis and fixes the roof-rack in the chassis top through many perpendicular roof beams, and the roof-rack includes at least one X axle beam and at least one Y axle beam, and wherein a set of unit of milling slidable installs between X axle beam and chassis, and installs on the X axle beam and be used for driving this set of unit of milling along the gliding first power component of feed channel transmission direction front and back, and another set of unit of milling slidable installs between Y axle beam and chassis, and installs on the Y axle beam and be used for driving this set of unit of milling along being close to or keeping away from the gliding second power component of feed channel direction.

3. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 1, wherein: the pressing mechanism comprises a sliding seat and an expansion piece, one side of the sliding seat is in sliding fit with the side wall of one side, close to the feeding channel, of the stand column, the fixed end of the expansion piece is fixedly connected with the upper portion or the top of the stand column, the expansion end of the expansion piece is connected with the upper portion of the sliding seat and can push the sliding seat to slide up and down along the side wall of the stand column, and a pressing plate is installed at the bottom of the sliding.

4. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 1, wherein: the deep stop iron milling mechanism comprises a positioning seat, a baffle shell and a clamping assembly arranged in the baffle shell, wherein the positioning seat is fixed on the side wall of an upright column, both sides of the positioning seat along the transmission direction of a feeding channel are hinged with swing arms capable of rotating towards one side of the feeding channel, the clamping assembly comprises a telescopic cylinder, a bent arm and a clamping rod, the clamping rod is fixed between the swing arms at both sides, the cylinder end of the telescopic cylinder is hinged on the side wall of the upright column, the piston end of the telescopic cylinder is hinged with one end of the bent arm, the other end of the bent arm is fixedly connected with the middle part of the clamping rod, the lower part of the baffle shell is positioned at one side of the telescopic cylinder close to the feeding channel, the lower part of the baffle shell is fixedly connected with the side wall of the upright column, the upper part of the baffle shell is positioned at one side of the.

5. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 4, wherein: the material clamping gap is positioned right below the pressing mechanism.

6. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 4, wherein: the deep stop iron milling mechanism further comprises a transmission assembly, the transmission assembly comprises a transmission motor and a plurality of transmission rollers, the transmission rollers are rotatably installed on the side wall, close to one side of the feeding channel, of the stand column through roller shafts, the transmission rollers are arranged between the positioning seat and the clamping rod side by side along the transmission direction of the feeding channel, and the transmission motor is linked with the roller shafts of all the transmission rollers through belt pulley assemblies.

7. The numerically controlled double-ended double-sided fore-and-aft milling machine according to any one of claims 1 to 4, wherein: the side wall of one side of the power box and the side wall of one side of the stand column, which is far away from the feeding channel, are in sliding fit, a lead screw transmission mechanism used for driving the power box to slide up and down is installed on the side wall of the stand column, which is far away from the feeding channel, the two groups of milling head assemblies are installed on one side of the power box, which is close to the feeding channel, and the two groups of milling head assemblies are respectively located on two sides of the deep milling stop iron mechanism along the transmission direction.

8. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 7, wherein: the milling head assembly comprises a first milling head, a second milling head, a third milling head and a retaining sleeve which are sequentially arranged from top to bottom, the first milling head, the second milling head and the third milling head are rotatably connected with the output end of the power box, and the retaining sleeve is adjustably installed on the side wall of the power box.

9. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 8, wherein: and the power box is provided with an adjusting oil cylinder which can at least enable the second milling head and the third milling head to extend and retract towards the direction close to or far away from the feeding channel.

10. The numerically controlled double-ended double-sided fore-and-aft milling machine according to claim 1, wherein: the conveying mechanism is a roller conveyor, at least one positioning fixture block arranged along the conveying direction of the roller conveyor is arranged on the roller conveyor, the positioning fixture block comprises a clamping strip and support legs fixed to the lower surface of the clamping strip, the support legs are fixed to the surface between adjacent rollers on the roller conveyor, and the length direction of the clamping strip is parallel to the conveying direction of the roller conveyor.

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