CN220311968U - Sawing tool for gantry sawing machine - Google Patents

Abstract

The utility model discloses a sawing tool for a gantry sawing machine. According to the utility model, two sawing support blocks are symmetrically arranged about the chip groove, and inclined plates of the two sawing support blocks are arranged in parallel; the dovetail groove screw rod sliding tables are symmetrically arranged, and a guide rail of each dovetail groove screw rod sliding table is fixed with one inclined plate; the thread sections of the two spiral tail cylindrical pins are connected with the sliding blocks of the two dovetail groove screw rod sliding tables through threads, and the inner rings of the two rolling bearings are in interference fit with the pin bodies of the two spiral tail cylindrical pins; each inclined plate is fixed with one pressing plate through two screws. According to the utility model, the center line of the workpiece to be processed is aligned with the saw blade by adjusting the distance between the two sawing support blocks, the workpiece to be processed is driven to move along the upper surface of the inclined plate, the contact surface between the pressing plate and the workpiece to be processed is increased, the workpiece to be processed is rotated to align the sawing line of the center with the saw blade, and the pressing plate firmly presses the workpiece to be processed, so that the alignment efficiency and the sawing efficiency are improved.

Description

Sawing tool for gantry sawing machine

Technical Field

The utility model belongs to the field of machining, and particularly relates to a sawing tool for a gantry sawing machine.

Background

Auxiliary parts on the steam turbine, such as an oil seal ring body, a backing ring, a partition plate and the like, are indispensable parts of the steam turbine, when the sawing machine processes parts of the steam turbine, the sawing machine most hopefully uses time for sawing key workpieces, and simultaneously, the auxiliary parts are most hopefully sawed in the shortest time for cost and efficiency, so that the auxiliary parts are set as soon as possible. At present, an oil seal ring body and a backing ring on a steam turbine are cut into a central sawing line after finishing the whole circle of processing, and then are processed by a sawing machine, but the saw blade and the central sawing line are aligned slowly before sawing processing, and the alignment efficiency is low due to the fact that the number of repetition is large.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides a sawing tool for a gantry sawing machine.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the utility model relates to a sawing tool for a gantry sawing machine, which comprises a base bottom plate, a sawing support block, a dovetail groove screw rod sliding table, a screw tail cylindrical pin, a rolling bearing and a pressing plate.

A chip removal groove is formed in the base bottom plate; the sawing support block comprises a horizontal bottom plate and inclined plates which are integrally formed, two inclined plates are symmetrically arranged relative to the chip grooves, the two inclined plates are arranged in parallel, the two horizontal bottom plates and the base bottom plate form a horizontal moving pair perpendicular to the chip grooves, n waist-shaped grooves which are distributed along the chip grooves at intervals are formed in each horizontal bottom plate, n is more than or equal to 2, a group of bolt groups are arranged, and the chip grooves are arranged perpendicular to the chip grooves; the bolt group consists of n bolts which are arranged at intervals, and each bolt passes through one waist-shaped groove on the corresponding horizontal bottom plate to be connected with the base bottom plate through threads and compress the corresponding horizontal bottom plate; the two dovetail groove screw rod sliding tables are symmetrically arranged about the chip grooves, guide rails of the two dovetail groove screw rod sliding tables are fixed on the inner sides of the inclined plates integrally formed on the two sawing support blocks, sliding blocks of the two dovetail groove screw rod sliding tables are parallel, the upper surfaces of the two sliding blocks are flush with the upper surfaces of the corresponding inclined plates, screw rods of the two dovetail groove screw rod sliding tables are parallel, and the inclination angles of the two screw rods are equal to those of the corresponding inclined plates; the screw tail cylindrical pins are perpendicular to the inclined plates and symmetrically arranged about the chip grooves, and the thread section of each screw tail cylindrical pin is connected with one sliding block through threads; the inner rings of the two rolling bearings are in interference fit with pin bodies of the two spiral tail cylindrical pins; the clamp plate is equipped with two that parallel and set up symmetrically about the junk slot, and two through-holes that every clamp plate intermediate position offered are fixed through two screws that the interval was arranged with two screw holes that integrated into one piece's inclined plate upper surface was offered on the support piece to a saw cut.

Preferably, the inclined plate is also provided with n waist-shaped grooves distributed along the clearance between the chip grooves, and each waist-shaped groove of the inclined plate is aligned with each waist-shaped groove of the lower horizontal bottom plate one by one.

Preferably, the dovetail groove screw rod sliding table comprises a guide rail, a sliding block and a screw rod, wherein the sliding block and the guide rail form a sliding pair, the screw rod and the guide rail form a rotating pair, and a threaded pair is formed by a threaded hole formed in the sliding block and the sliding block.

The beneficial effects of the utility model are as follows:

1. according to the utility model, the distance between the two sawing support blocks is adjusted, so that the contact area of the workpiece to be machined and the inclined surfaces integrally formed on the two sawing support blocks is large while the alignment of the central line of the workpiece to be machined and the saw blade is ensured, the workpiece to be machined contacts with the outer rings of the two rolling bearings under the action of self gravity through the inclined plates integrally formed on the sawing support blocks, and the rolling bearings on the screw tail cylindrical pins are driven by the dovetail groove screw rod sliding table, so that the workpiece to be machined is driven to move along the upper surfaces of the inclined plates, and the pressing plates can be symmetrically arranged about the diameter of the workpiece to be machined, which is perpendicular to the chip grooves, when being placed, so that the contact surface between the pressing plates and the workpiece to be machined is larger; the workpiece to be processed can be rotated easily through the rolling bearing, and then the alignment of the center sawing line on the workpiece to be processed and the saw blade is quickened. Therefore, the utility model can reduce the times of aligning the center sawing line with the saw blade on the workpiece to be processed and improve the alignment efficiency.

2. According to the utility model, the contact surface between the two pressing plates and the workpiece to be processed is increased, so that the workpiece to be processed can be more firmly pressed on the two inclined plates and is not easy to shift, the stability of the workpiece to be processed in the sawing process is ensured, and the sawing speed and the sawing efficiency are improved.

3. The base bottom plate is arranged in the utility model, other parts are all arranged on the base bottom plate, and the base bottom plate can be fixed on a workbench of the gantry sawing machine before sawing processing, so that quick installation is realized, and time is saved.

Drawings

FIG. 1 is a schematic view of the structure of the present utility model for sawing a workpiece to be machined;

FIG. 2 is a schematic view of the structure of the present utility model after being mounted on a gantry sawing machine and the pressing plate being removed;

FIG. 3 is a schematic view of the structure of the present utility model after being mounted to a planer saw machine with the platen and one sawing support block removed;

FIG. 4 is a front view of a dovetail lead screw slipway in the present utility model;

fig. 5 is a top view of a dovetail lead screw slipway in the present utility model.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1, 2 and 3, the sawing tool for the gantry sawing machine comprises a base bottom plate 1, a sawing support block 2, a dovetail groove screw rod sliding table 4, a screw tail cylindrical pin 5, a rolling bearing and a pressing plate 7.

A chip removal groove is formed in the base bottom plate 1; the sawing support block 2 comprises a horizontal bottom plate and inclined plates which are integrally formed, two inclined plates are symmetrically arranged relative to the chip grooves, the two inclined plates are arranged in parallel, the two horizontal bottom plates and the base bottom plate 1 form a horizontal moving pair perpendicular to the chip grooves, n waist-shaped grooves 3, n is more than or equal to 2, which are distributed along the interval of the chip grooves, are formed in each horizontal bottom plate, and a group of bolts are arranged, and the chip grooves are perpendicular to the chip grooves; the bolt group consists of n bolts which are arranged at intervals, each bolt passes through one waist-shaped groove 3 on the corresponding horizontal bottom plate to be in threaded connection with the base bottom plate and is used for compacting the corresponding horizontal bottom plate, when each bolt is unscrewed, the two sawing support blocks 2 can move relatively or reversely, the installation positions of the two sawing support blocks 2 can be adjusted, the contact area of a machined workpiece and an integrally formed inclined plate on the two sawing support blocks 2 is large, and the stability of the machined workpiece during machining is further improved; the two dovetail groove screw rod sliding tables 4 are symmetrically arranged about the chip grooves, guide rails of the two dovetail groove screw rod sliding tables 4 are fixed on the inner sides of the inclined plates integrally formed on the two sawing support blocks 2, sliding blocks of the two dovetail groove screw rod sliding tables 4 are parallel, the upper surfaces of the two sliding blocks are flush with the upper surfaces of the corresponding inclined plates, screw rods of the two dovetail groove screw rod sliding tables 4 are parallel, and the inclination angles of the two screw rods are equal to those of the corresponding inclined plates; the screw tail cylindrical pins 5 are perpendicular to the inclined plates and symmetrically arranged about the chip grooves, and the thread section of each screw tail cylindrical pin 5 is connected with one sliding block through threads; the inner rings of the two rolling bearings are in interference fit with pin bodies of the two spiral tail cylindrical pins 5, and the rolling bearings are used for reducing friction force when contacting with a workpiece to be processed; the pressing plate 7 is provided with two parallel pressing plates which are symmetrically arranged about the chip grooves, and two through holes formed in the middle position of each pressing plate 7 are fixed with two screw holes formed in the upper surface of the integrally formed inclined plate on one sawing support block 2 through two screws 8 which are arranged at intervals.

As a preferred embodiment, the inclined plate is also provided with n kidney-shaped grooves arranged along the clearance between the chip grooves, and each kidney-shaped groove of the inclined plate is aligned with each kidney-shaped groove of the lower horizontal bottom plate one by one, and each kidney-shaped groove of the inclined plate can be penetrated by a tool for screwing the bolt.

As a preferred embodiment, as shown in fig. 4 and 5, the dovetail screw sliding table 4 includes a guide rail, a slider and a screw, the slider and the guide rail form a sliding pair, the screw and the guide rail form a rotating pair, and a screw pair is formed by a threaded hole formed in the slider and the slider.

The utility model relates to a working principle of a sawing tool for a gantry sawing machine, which comprises the following steps:

firstly, fixing a base bottom plate 1 on a workbench of a gantry sawing machine, and enabling a chip groove to be positioned right below a saw blade 9 of the gantry sawing machine; then unscrewing each bolt, and moving the two sawing support blocks 2 in opposite directions or in opposite directions by the same distance according to the inner diameter and the wall thickness of the workpiece 6 to be processed until the distance between the two pressing plates 7 is slightly smaller (can be 4-7mm smaller) than the inner diameter of the workpiece to be processed, so that each screw 8 and each screw tail cylindrical pin 5 can be placed in the inner ring of the workpiece 6 to be processed, and screwing each bolt; then unscrewing each screw 8, taking down the two pressing plates 7, placing the processed workpiece on the inclined plates integrally formed on the two sawing support blocks 2, and enabling the processed workpiece to slide downwards along the upper surfaces of the inclined plates under the action of self gravity until the outer rings of the two rolling bearings are contacted with the inner rings of the processed workpiece and the processed workpiece is prevented from sliding downwards, so that the center line of the processed workpiece can be aligned with the saw blade, and the contact area of the inclined surfaces integrally formed on the processed workpiece and the two sawing support blocks is larger; the lead screws of the dovetail groove lead screw sliding tables 4 are rotated, the lead screws drive the workpiece to be processed to move along the upper surfaces of the inclined plates through corresponding sliding blocks and screw tail cylindrical pins 5 until the workpiece to be processed moves to a position between two threaded holes, perpendicular to the chip grooves, on the workpiece to be processed, on the upper surfaces of the inclined plates, so that the pressing plates 7 can be symmetrically arranged about the diameter, perpendicular to the chip grooves, on the workpiece to be processed when being placed, and the contact surface between the pressing plates 7 and the workpiece to be processed is larger; then, the two pressing plates 7 are remounted on the corresponding inclined plates, but the screws 8 are not screwed, and the lower surfaces of the two pressing plates 7 are contacted with the upper surface of the workpiece to be processed; finally, the saw blade 9 is lowered to a position 1-2mm away from the workpiece to be processed, the workpiece to be processed is rotated, the center sawing line on the workpiece to be processed is aligned with the saw blade 9, each screw 8 is screwed down, the two pressing plates 7 press the workpiece to be processed, and the saw blade 9 is sawed along the center sawing line on the workpiece to be processed.

In the sawing process, after the saw blade 9 saws the highest point of the processed workpiece, the back taper withdrawal needle can be knocked into a sawn gap on the processed workpiece slowly, so that the effect of preventing the saw blade 9 from being blocked is achieved.

Claims (3)

1. A saw cut frock for planer-type sawing machine, its characterized in that: the device comprises a base bottom plate, a sawing support block, a dovetail groove screw rod sliding table, a screw tail cylindrical pin, a rolling bearing and a pressing plate; a chip removal groove is formed in the base bottom plate; the sawing support block comprises a horizontal bottom plate and inclined plates which are integrally formed, two inclined plates are symmetrically arranged relative to the chip grooves, the two inclined plates are arranged in parallel, the two horizontal bottom plates and the base bottom plate form a horizontal moving pair perpendicular to the chip grooves, n waist-shaped grooves which are distributed along the chip grooves at intervals are formed in each horizontal bottom plate, n is more than or equal to 2, a group of bolt groups are arranged, and the chip grooves are arranged perpendicular to the chip grooves; the bolt group consists of n bolts which are arranged at intervals, and each bolt passes through one waist-shaped groove on the corresponding horizontal bottom plate to be connected with the base bottom plate through threads and compress the corresponding horizontal bottom plate; the two dovetail groove screw rod sliding tables are symmetrically arranged about the chip grooves, guide rails of the two dovetail groove screw rod sliding tables are fixed on the inner sides of the inclined plates integrally formed on the two sawing support blocks, sliding blocks of the two dovetail groove screw rod sliding tables are parallel, the upper surfaces of the two sliding blocks are flush with the upper surfaces of the corresponding inclined plates, screw rods of the two dovetail groove screw rod sliding tables are parallel, and the inclination angles of the two screw rods are equal to those of the corresponding inclined plates; the screw tail cylindrical pins are perpendicular to the inclined plates and symmetrically arranged about the chip grooves, and the thread section of each screw tail cylindrical pin is connected with one sliding block through threads; the inner rings of the two rolling bearings are in interference fit with pin bodies of the two spiral tail cylindrical pins; the clamp plate is equipped with two that are parallel and set up about the junk slot, and two through-holes that every clamp plate intermediate position offered are fixed through two screws that the interval was arranged with two screw holes that integrated into one piece's inclined plate upper surface offered on the support piece of saw cutting.

2. Sawing tool for a planer saw machine according to claim 1, characterized in that: the inclined plate is also provided with n waist-shaped grooves which are distributed along the intervals of the chip grooves, and all waist-shaped grooves of the inclined plate are aligned with all waist-shaped grooves of the lower horizontal bottom plate one by one.

3. Sawing tool for a planer saw machine according to claim 1, characterized in that: the dovetail groove screw rod sliding table comprises a guide rail, a sliding block and a screw rod, wherein the sliding block and the guide rail form a sliding pair, the screw rod and the guide rail form a revolute pair, and a threaded pair is formed by a threaded hole formed in the sliding block and the sliding block.