CN102886567B - High-speed horizontal cutting band sawing machine - Google Patents

Abstract

A high-speed horizontal cutting band sawing machine, including a machine base, a column, a workbench, a liftable saw frame, a main transmission system, a guide device, a saw frame lifting device, a workpiece clamping device, a hydraulic transmission system and an electrical control system. The device includes two left and right guide arms and a guide head. The saw band passes through the two guide heads. It is characterized in that: the guide head guides the cutting direction of the saw band to be horizontal; The workbench drive device for the front and back movement of the workbench; the left and right connection blocks are respectively fixed at the lower ends of the left and right guide arms, and the left and right connection blocks are respectively provided with anti-pinch saw blades that protrude horizontally and are located at the front of the saw band. rear. It can perform high-speed horizontal cutting on large-area plate planes, and has good processing performance.

Description

High Speed Horizontal Cutting Band Saw

technical field

The invention relates to a column horizontal metal band sawing machine, in particular to a high-speed horizontal cutting band sawing machine.

Background technique

The traditional column horizontal metal band sawing machine includes machine base, column, saw frame, workbench, saw frame lifting device, workpiece clamping device, guide device, main transmission system, hydraulic system and electrical system, etc.

The workbench and the column are fixedly installed on the machine base; the saw frame is movably connected to the two columns, and intersects with the workbench in a vertical three-dimensional manner, and is driven by the lifting device of the saw frame and positioned by a grating ruler. The lifting device of the saw frame is usually The lifting cylinder is adopted; the workpiece clamping device includes fixed clamps and movable clamps, and they are all arranged on the machine base; the main transmission system includes a main motor, a driving wheel and a driven wheel, which are installed on the saw frame to drive the saw band to run Sawing; the guide device is composed of a guide arm and a guide head, the guide arm is installed on the saw frame, the saw band passes through the guide head, and the cutting direction of the guide saw band is vertical. When the machine tool is working, the workpiece material is fixed on the workbench by the workpiece clamping device, and the saw band feeds and cuts vertically with the saw frame.

Because the traditional vertical column horizontal metal band sawing machines are all cutting with vertical feed, it is very difficult to cut large-area plate planarly. Even if it can cut, the sawing machine must be very large, and the manufacturing cost and processing accuracy are difficult to control. And the feed rate cannot be too large when cutting large-area plates, but the cutting efficiency is low when processing at the saw band line speed of the traditional band sawing machine.

Contents of the invention

The problem to be solved by the present invention is to provide a high-speed horizontal cutting band sawing machine, which can perform high-speed horizontal cutting on large-area plate planes and has good processing performance.

The high-speed horizontal cutting band sawing machine of the present invention includes a machine base, a column, a workbench, a liftable saw frame, a main transmission system, a guide device, a saw frame lifting device, a workpiece clamping device, a hydraulic transmission system and an electrical control system, The guide device includes two left and right guide arms and a guide head. The saw band passes through the two guide heads. It is characterized in that: the guide head guides the cutting direction of the saw band to be horizontal; There is a worktable driving device that can drive the workbench to move back and forth; the left and right connection blocks are respectively fixed at the lower ends of the left and right guide arms, and the left and right connection blocks are respectively provided with anti-pinch saw blades that protrude horizontally and are located on the Right behind the saw band.

Further, in the present invention, the saw frame intersects the workbench obliquely and three-dimensionally. In this way, the contact surface between the saw band and the workpiece is reduced when the saw frame is initially fed to cut, and the cutting stability is better.

In the present invention, the protruding lengths of the two anti-pinch saw blades are both 5-10 cm. In this way, the anti-pinch effect of its auxiliary saw blade is the best.

Also in the present invention, the saw frame lifting device is composed of a servo motor, a commutator, a transmission shaft, a lifter, a screw and a screw nut arranged in the lifting mechanism box, and the servo motor is connected to the commutator, The commutator is respectively connected to the left and right elevators by two transmission shafts, and the two elevators are respectively connected with two vertical vertical screw rods and screw nuts. In this way, the lifting and lowering of the saw frame is connected by the screw nut, and the positioning accuracy of the lifting is higher.

Also in the present invention, the worktable drive device is a hydraulically driven oil cylinder. Its driving control is convenient.

Also in the present invention, the workbench is composed of a workbench body, a panel, a workpiece clamping device and a plurality of drag rollers, wherein the tops of each drag roller protrude from corresponding through holes in the panel. In this way, it is better to protect the bottom plane of the workpiece from being pulled when it moves.

Also in the present invention, the workpiece clamping device is composed of a clamping oil cylinder, a clamp and a sealing plate, wherein the sealing plate is connected with the clamp. In this way, the clamping control of the workpiece is convenient, and the sawdust is blocked by the sealing plate and is not easy to fall into the lower part of the panel.

Also in the present invention, the dragging roller is composed of a roller seat, a roller, a bearing, a roller spacer, a roller shaft, a stop ring and a fixing nut, wherein the roller seat is composed of a bottom plate connected with two opposite upright plates, and the bottom plate Mounting holes are arranged on the top, and the roller shaft passes through the bearings in the two vertical plates, the two roller spacers and the two sides of the roller. Its working reliability is good.

The beneficial technical effects of the present invention are: the high-speed horizontal cutting band sawing machine can perform high-speed horizontal cutting on large-area plate planes, and has good processing performance.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a schematic view showing an enlarged state of the guiding device in Fig. 1 .

Fig. 3 is a schematic diagram of the oblique three-dimensional intersection of the saw frame and the workbench in Fig. 1 .

Fig. 4 is a schematic diagram of the usage state of the saw frame lifting device in Fig. 1 .

Fig. 5 is a structural schematic view of the saw frame elevating device viewed from the front in Fig. 4 .

FIG. 6 is a schematic structural diagram of the workbench in FIG. 1 .

Fig. 7 is a schematic structural diagram of the drag roller in Fig. 6 .

FIG. 8 is a schematic cross-sectional structure diagram of FIG. 7 .

Detailed ways

Description of drawings: 1-lifting mechanism box, 2-saw frame, 20-machine base, 21-column, 22-main guide rail, 23-auxiliary guide rail, 3-left guide arm, 31-right guide arm, 4-left Guide head, 41-right guide head, 5-roller, 50-base plate, 51-roller shaft, 52-vertical plate, 53-installation hole, 54-fixing nut, 55-stop ring, 56-bearing, 57- Roller spacer, 6-clamp, 61-sealing plate, 62-clamping cylinder, 7-table, 70-base, 71-table body, 72-panel, 8-saw band, 9-anti-pinch saw blade , 91-left connection block, 92-right connection block, 10-electrical control box, 11-commutator, 12-servo motor, 13-transmission shaft, 14-elevator, 15-main motor, 16-screw nut, 17 - screw rod.

As shown in Figures 1 and 2, the high-speed horizontal cutting band sawing machine includes a machine base 20, a column 21, a workbench 7, a liftable saw frame 2, a main drive system, a guide device, a saw frame lifting device, and a workpiece clamping device. device, hydraulic transmission system and electrical control system, the guide device includes left and right guide arms (3, 31) and guide heads (4, 41), and the saw band 8 passes through the two guide heads (4, 41). The guide head (4, 41) guides the cutting direction of the saw band 8 to be horizontal; the workbench 7 is slidably connected to its base 70, and the base 70 is provided with a workbench driving device that can drive the workbench 7 to move back and forth; the left and right guide arms ( 3, 31) The lower end is also fixed with a left connection block 91 and a right connection block 92 respectively, and the left and right connection blocks (91, 92) are respectively provided with anti-pinch saw blades 9 that protrude horizontally and are located directly behind the saw band 8 .

The protruding length of the two anti-pinch saw blades is 5-10 cm. In this way, the anti-pinch effect of its auxiliary saw blade is the best.

The driving device of the workbench is a hydraulically driven oil cylinder, and its driving control is convenient. The driving oil cylinder is installed in the base 70, and its push rod is connected with the bottom surface of the worktable body 71, and drives the base 70 to move back and forth. The base 70 may be provided with a horizontal guide rail, so that the workbench 7 is slidably connected to the base 70 through the horizontal guide rail.

As shown in FIG. 3 , the saw frame 2 intersects the workbench 7 obliquely and three-dimensionally. In this way, when the saw frame 2 is initially fed and cut, the saw band 8 and the end surface of the workpiece will not be in contact at the same time, but a certain inclination will be fed and cut, so that the initial cutting contact surface is reduced, and the cutting is more stable than the saw frame and the workbench. Sex is better.

As shown in Fig. 4 and Fig. 5, the saw frame elevating device is composed of a servo motor 12, a commutator 11, a transmission shaft 13, an elevator 14, a screw mandrel 17 and a screw mandrel nut 16 arranged in the elevating mechanism box 1, The servo motor 12 is connected with a commutator 11, and the commutator 11 is connected with two left and right elevators 14 through two transmission shafts 13, and the two elevators 14 are connected with two vertical vertical screw rods 17 and screw nuts 16 respectively.

The screw nut 16 in the saw frame lifting device connects and drives the saw frame 2 to lift. Compared with the traditional hydraulic oil cylinder driving the saw frame lifting and grating ruler positioning, the saw frame lifting device has higher positioning accuracy. The saw frame 2 is also slidably connected with the main guide rail 22 and the auxiliary guide rail 23 on the column through the sliding sleeve provided therewith.

Described screw mandrel 17 can adopt trapezoidal screw mandrel, and its economy and practicability are all better. The lifting mechanism box 1 is provided with a bottom plate to block components such as servo motors above it. The servo motor 12, the commutator 11 and the elevator 14 can be respectively connected to the elevator mechanism box 1 through another mounting base.

As shown in Fig. 6, Fig. 7 and Fig. 8, the workbench 7 is composed of a workbench body 71, a panel 72, a workpiece clamping device and a plurality of support rollers, wherein the top of each support roller extends out of the panel 72. corresponding vias. In this way, it is better to protect the bottom plane of the workpiece from being pulled when it moves.

The workpiece clamping device is composed of a clamping oil cylinder 62, a clamp 6 and a sealing plate 61, wherein the sealing plate 61 is connected with the clamp 6 and can move horizontally together with the clamp 6, and the sealing plate 61 is used to block sawdust falls under the panel. Two pairs of tongs 6 can be respectively arranged on the front and rear sides and the left and right sides of the workbench 7, and each tongs 6 is connected to a clamping oil cylinder 62 to seal the plate 61, and the workpiece is clamped by the hydraulic system, which is convenient to control and not easy to seedust. falls under the panel.

The dragging roller is composed of a roller seat, a roller 5, a bearing 56, a roller spacer 57, a roller shaft 51, a stop ring 55 and a fixing nut 54, wherein the roller seat is formed by connecting a bottom plate 50 and two opposite vertical plates 52, The bottom plate 50 is provided with mounting holes 53 , and the roller shaft 51 passes through two vertical plates 52 , two roller spacers 57 and bearings 56 in both sides of the roller 5 . The supporting rollers are installed on the workbench body 71 through the mounting holes 53 on the base plate 50, the panels 72 on the workbench 7 are fixedly connected to the top surfaces of the two vertical plates 52, and the tops of each roller 5 are stretched out from the panels 72. corresponding through-holes. Each roller 5 is not easy to block during its work, and the work is reliable.

In the present invention, a saw band cooling device and a cutting dust-proof device can be arranged at the lower end of the left guide arm and the lower end of the right guide arm as required, so that the sawing machine can work better.

After the present invention cuts to a certain depth at a high speed and horizontally, the anti-pinch saw blade can bear the pressure of the cut upper panel to protect the saw band running in front from the influence of the heavy pressure of the upper panel, so that the saw band has very good working reliability. It can obviously reduce the friction and temperature rise when the saw band is working, and has the good performance of saving energy and preventing band saw band entrainment.

The present invention adopts the lifting device of the saw frame including the servo motor and the screw pair to drive the saw frame up and down. The lifting and positioning precision of the saw frame is high, and the numerical control control is more convenient. And the workbench adopts drag rollers, which can prevent the bottom surface of the plate from being damaged during the movement, and the performance is better. Moreover, it can work with a saw band at a linear speed of 1500 m/min, with high efficiency, and the cutting plane finish can reach the level of milling machine processing. It is very suitable for plane cutting of large-area plates and has good processing performance.

It should be understood that: the above-mentioned embodiments are only descriptions of the present invention, and any inventions that do not exceed the spirit of the present invention fall within the scope of protection of the present invention.

Claims (2)

1. a high speed horizontal resection band sawing machine, comprise support, column, workbench, liftable saw frame, main transmission, guider, saw bow lifting gear, Workpiece clamping device, Hydraulic Power Transmission System and electric control system, described guider comprises left and right two leading arms and guide head, saw band is passed from two guide heads, and saw band cut direction is led as transverse direction by described guide head; Workbench is connected with its base sliding, is provided with the Working table driving device that workbench can be driven to seesaw in base; It is characterized in that: leading arm lower end, described left and right two is also fixed with left contiguous block and right contiguous block respectively, the anti-pinch saw blade that level in opposite directions that left and right two contiguous block is respectively equipped with is stretched out, and is positioned at saw band dead astern, described two anti-pinch saw blades stretch out length and are 5-10 centimetre .

2. high speed horizontal resection band sawing machine according to claim 1, is characterized in that: described saw frame is crossing with the oblique solid of workbench.

3. high speed horizontal resection band sawing machine according to claim 1 or 2, it is characterized in that: described saw bow lifting gear is made up of the servomotor be located in elevating mechanism case, commutator, power transmission shaft, lift, screw mandrel and feed screw nut, described servomotor connects commutator, commutator connects left and right two lifts respectively by two power transmission shafts, and two lifts connect down two respectively and to stand screw mandrel and feed screw nut.

4. high speed horizontal resection band sawing machine according to claim 1 or 2, is characterized in that: described Working table driving device is hydraulic driving oil cylinder.

5. high speed horizontal resection band sawing machine according to claim 1 or 2, is characterized in that: described workbench drags roller to form by workbench body, panel, Workpiece clamping device and some holding, and wherein respectively holds the respective through hole of dragging in the equal extending panel in roller top.

6. high speed horizontal resection band sawing machine according to claim 5, is characterized in that: described Workpiece clamping device is made up of clamping cylinder, clamp and shrouding, and wherein shrouding is connected with clamp.

7. high speed horizontal resection band sawing machine according to claim 5, it is characterized in that: described in hold and drag roller to be made up of roller mount, roller, bearing, roller spacer, roller shaft, stop back-up ring and hold-down nut, wherein roller mount is connected and composed by base plate and two opposed plates, base plate is provided with installing hole, and roller shaft is through the bearing in two risers, two roller spacers and roller both sides.