CN115674121A - Opposite clamping type positioning tool for nodular cast iron machining - Google Patents

Abstract

The invention relates to an opposite-clamping type positioning tool for nodular cast iron processing, which relates to the technical field of nodular cast iron processing equipment; the driving motor is fixed on the front side wall of the workbench, and an output shaft of the driving motor is inserted in the workbench; two ends of the driving screw rods are respectively connected with two side walls of the cavity in a rotating mode through bearings, the other end of one driving screw rod is fixedly connected with an output shaft of the driving motor, and the vertical end of the supporting frame is fixed on the screw nuts at the front end and the rear end of the driving screw rod adjacent to the supporting frame; the supporting tube is arranged at the lower side of the supporting plate, and the lower end of the supporting tube is fixed on the upper surface of the workbench; the support inserting rod is inserted in the support pipe, and the upper end of the support inserting rod is fixedly connected with the lower side wall of the support plate; the end fixing mechanism is arranged on one side of the upper surface of the workbench; the driving mechanism is arranged between the front clamping plate and the rear clamping plate and is fixed on the workbench; the nodular cast iron pipes with different diameters can be clamped, and the driving can be carried out when the nodular cast iron pipes are clamped, so that the labor capacity of workers is reduced.

Description

Opposite-clamping type positioning tool for nodular cast iron machining

Technical Field

The invention relates to the technical field of nodular cast iron processing equipment, in particular to a wafer type positioning tool for nodular cast iron processing.

Background

The nodular cast iron is a high-strength cast iron material developed in the 20 th century and the fifties, the comprehensive performance of the nodular cast iron material is close to that of steel, and the parts with high requirements on strength, toughness and wear resistance are high.

Disclosure of Invention

The invention aims to provide the wafer type positioning tool for processing nodular cast iron, which is reasonable in design and convenient to use, aiming at overcoming the defects and shortcomings of the prior art, can be used for clamping nodular cast iron pipes with different diameters, can be driven during clamping, and reduces the labor amount of workers.

In order to achieve the purpose, the invention adopts the technical scheme that: the clamping device comprises a workbench, supporting legs, clamping plates and a supporting frame, wherein the supporting legs are fixed at four corners of the outer bottom wall of the workbench, every two opposite clamping plates are arranged on the upper side of the workbench at equal intervals from left to right, the clamping plates are all arranged in an arc shape, the supporting frame is fixed on the outer arc surface of each clamping plate, the supporting frame is arranged in an inverted L shape, and the bottom end of a vertical rod of the supporting frame is inserted into the workbench in a sliding manner; it also includes:

the driving motor is fixed on the front side wall of the workbench and connected with an external power supply, and an output shaft of the driving motor is inserted in the workbench;

the driving screw rods are arranged in the cavity in the workbench at equal intervals from left to right, two ends of each driving screw rod are oppositely arranged towards threads on two sides by taking the middle end as the center, two ends of each driving screw rod are respectively screwed with two side walls of the cavity through bearings, one ends of the driving screw rods are connected through a synchronizing wheel transmission assembly, the other end of one driving screw rod is fixedly connected with an output shaft of a driving motor, and the vertical ends of the front and rear corresponding support frames are respectively fixed on the screw nuts at the front and rear ends of the driving screw rod adjacent to the driving screw rod;

the supporting plates are arranged in an arc shape, the supporting plates are suspended at the middle side above the workbench at equal intervals from left to right, and the supporting plates and the clamping plates are arranged in a staggered manner;

the supporting pipes are arranged on the lower side of the supporting plate in a one-to-one correspondence mode, and the lower ends of the supporting pipes are fixed on the upper surface of the workbench;

the supporting inserted rods are a plurality of and are correspondingly inserted into the supporting tubes one by one, the positioning bolts penetrate through the supporting tubes and are arranged in a manner of abutting against the outer ring walls of the supporting inserted rods, and the upper ends of the supporting inserted rods penetrate through the upper ends of the supporting tubes and are fixedly connected with the lower side walls of the supporting plates;

the end fixing mechanism is arranged on one side of the upper surface of the workbench, and the center point of the end fixing mechanism and the circle center of the clamping plate are arranged in the same straight line;

the driving mechanisms are arranged between the front clamping plate and the rear clamping plate in a corresponding mode, and are fixed on the workbench;

according to the technical scheme, bolts on the supporting tube are loosened according to the diameter of the nodular cast iron pipe, the height of the supporting inserted rods is adjusted, the position of the supporting plate is adjusted, the nodular cast iron pipe is placed on the supporting plate, the circle center of the nodular cast iron pipe and the circle center of the clamping plate are in the same plane, then the nodular cast iron pipe is placed on the supporting plate, the driving mechanism is started, the driving mechanism drives the nodular cast iron pipe to move towards one side of the end fixing mechanism until the nodular cast iron pipe is sleeved on the end fixing mechanism, the end of the nodular cast iron pipe is fixed through the end fixing mechanism, then the driving motor is started, the driving motor drives the driving screw rods connected with the driving screw rods to rotate, the driving screw rods drive the other driving screw rods to rotate through the synchronous wheel transmission assembly, the driving screw rods drive the supporting frames connected with the driving screw rods to move through the nuts at two ends of the driving clamping plates respectively, and the clamping plates are clamped on the outer ring wall of the nodular cast iron pipe, and the position of the nodular cast iron pipe is positioned.

Preferably, the inner arc-shaped surfaces of the clamping plates are fixed with anti-slip pads;

through above-mentioned technical scheme, increase the frictional force between grip block and the nodular cast iron pipe through the slipmat.

Preferably, the tip fixing mechanism comprises:

the supporting seat is fixed on the upper surface of the workbench, and an inserting plate is inserted into the supporting seat and fixed through a bolt;

the rotary seat is suspended above the workbench, and a bulge on one side of the rotary seat is screwed with the inserting plate through a bearing;

the rotating gear is arranged in the rotating seat, and rotating shafts on two sides of the rotating gear are respectively connected with two side walls of the rotating seat in a rotating mode through bearings;

the first racks are respectively arranged on the front side and the rear side of the rotating gear, the first racks are meshed with the rotating gear, and the front first racks and the rear first racks are arranged in a staggered manner;

the two second racks are respectively arranged on the upper side and the lower side of the rotating gear, the two second racks are meshed with the rotating gear, and the upper and the lower two second racks are arranged in a staggered manner;

the number of the springs is four, one of the springs is correspondingly fixed on one end wall of the first rack and the second rack adjacent to the rotating gear, and the other end of the spring is fixed on the inner wall of the rotating seat;

the number of the supporting columns is four, one of the supporting columns is correspondingly inserted into the spring, two ends of each supporting column are respectively fixed on the inner wall of the rotating seat, and the first rack and the second rack are respectively movably sleeved on the supporting columns adjacent to the first rack;

the push rod is movably inserted into the upper side wall of the rotary seat, and the lower end of the push rod is fixedly connected with the top end of the first rack positioned on the upper side;

the four connecting frames are arranged in an L shape, one side edge of each connecting frame movably penetrates through the rotary seat and is far away from the sliding groove in one side wall of the inserting plate, and then the connecting frames are respectively fixed on the side walls of the first rack and the second rack in a one-to-one correspondence mode, and the end head of the other side edge of each connecting frame is arranged in the sliding groove in the rotary seat, which is far away from one side wall of the inserting plate, in a sliding mode through the sliding block;

the number of the clamping rods is four, and one of the clamping rods is correspondingly fixed on the side wall of the connecting frame, which is positioned on the outer side of the rotating seat;

through the technical scheme, during clamping, the push rod is pressed down, the push rod drives the first rack connected with the push rod to move downwards, the first rack drives the rotating gear to rotate, the rotating gear drives the first rack on the other side to move upwards, meanwhile, the rotating gear drives the second racks on the upper side and the lower side to move in opposite directions, the spring is compressed at the moment, the two first racks and the two second racks respectively drive the connecting frame connected with the first racks to move towards the center of the rotating seat, the clamping rods move to the center of the rotating seat, then the graphite cast iron pipe is sleeved to the outer sides of the four clamping rods, the push rod is loosened, and the spring pushes the first rack and the second racks connected with the spring to move towards the initial position until the clamping rods abut against the inner wall of the graphite cast iron pipe.

Preferably, the anti-slip strips are fixed on one side wall of the clamping rod away from the center of the rotating seat;

through the technical scheme, the friction force between the clamping rod and the inner wall of the nodular cast iron pipe is increased through the anti-slip strip.

Preferably, the driving mechanism comprises:

the electric push rods are arranged on the upper surface of the workbench in a front-back symmetrical manner and are connected with an external power supply;

the front side and the rear side of the lower surface of the transverse plate of the fixing frame are respectively and fixedly connected with piston rods of the electric push rods on the front side and the rear side;

the driving wheel is embedded in the fixed frame, and rotating shafts on the front side and the rear side of the driving wheel are respectively screwed with the front side wall and the rear side wall of the fixed frame through bearings;

the rotating motor is fixed on one side of the lower surface of the transverse plate of the fixing frame and is connected with an external power supply, and an output shaft of the rotating motor is connected with a rotating shaft on one side of the driving wheel through a synchronous wheel transmission assembly;

according to the technical scheme, the electric push rod is started and drives the fixing frame to move upwards until the upper side of the outer ring wall of the driving wheel inside the fixing frame and the middle side of the inner wall of the supporting plate are on the same plane, the rotating motor is started and drives the driving wheel to rotate through the synchronous wheel transmission assembly, and the driving wheel drives the nodular cast iron pipe in the rotating process so as to drive the nodular cast iron pipe to move.

Preferably, a plurality of circular grooves are equidistantly formed in the upper surface of the workbench, the circular grooves are in one-to-one correspondence with a plurality of driving mechanisms, a rotating plate is arranged in each circular groove, the outer edge of the rotating plate is slidably arranged in a sliding groove in the inner annular wall of each circular groove, two electric push rods in the same driving mechanism are respectively fixed on two sides of the upper surface of the rotating plate adjacent to the electric push rods, a limit screw rod is inserted into one side of the rotating plate, and the limit screw rod is screwed with the inner wall of each circular groove through threads after penetrating through the rotating plate;

through the technical scheme, when the nodular cast iron pipe is clamped and the surface needs to be changed, the limiting screw is unscrewed to be separated from the inner wall of the circular groove, the rotating plate is rotated by 90 degrees, then the limiting screw is screwed into the circular groove to limit the rotating plate, the driving wheel in the driving mechanism is parallel to the nodular cast iron pipe, the nodular cast iron pipe is driven by the driving wheel to rotate, and the nodular cast iron pipe rotates by taking the center of the nodular cast iron pipe as an axial point, so that the surface changing effect is achieved.

Compared with the prior art, the invention has the beneficial effects that:

1. the position of the clamping plate can be adjusted through the matching of the driving motor and the driving screw rod, so that the nodular cast iron pipes with different diameters can be used, the plurality of supporting plates are arranged on the lower side of each nodular cast iron pipe, the height of each supporting plate can be adjusted, the nodular cast iron pipes are supported while the clamping of the nodular cast iron pipes is not influenced, and the stability of the nodular cast iron pipes is improved;

2. an end fixing mechanism is arranged on one side of the workbench, so that the end part of the nodular cast iron pipe can be limited and fixed, and the stability in positioning is further improved;

3. all be equipped with actuating mechanism in the downside between two grip blocks of front and back symmetry, at the in-process of placing, can follow the workstation and keep away from on the backup pad is put into to one side in end fixed establishment, and drives through actuating mechanism at the in-process of placing, has reduced staff's the amount of labour.

Drawings

FIG. 1 is a schematic view of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is an enlarged view of the portion C in fig. 3.

Fig. 5 is a right side view of the rotary base in the present invention.

Fig. 6 is a schematic view of the internal structure of the rotary base according to the present invention.

Description of the reference numerals:

the device comprises a workbench 1, supporting legs 2, a clamping plate 3, a supporting frame 4, a driving motor 5, a driving screw rod 6, a supporting plate 7, a supporting tube 8, a supporting inserted rod 9, an end fixing mechanism 10, a supporting seat 10-1, an inserted plate 10-2, a rotating seat 10-3, a rotating gear 10-4, a first rack 10-5, a second rack 10-6, a spring 10-7, a supporting column 10-8, a push rod 10-9, a connecting frame 10-10, a clamping rod 10-11, a driving mechanism 11, an electric push rod 11-1, a fixing frame 11-2, a driving wheel 11-3, a rotating motor 11-4, an anti-skid pad 12, an anti-skid strip 13, a circular groove 14, a rotating plate 15 and a limiting screw rod 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 and 3, the present embodiment includes a workbench 1, supporting legs 2, clamping plates 3 and a supporting frame 4, the supporting legs 2 are riveted and fixed to four corners of the outer bottom wall of the workbench 1, every two opposite clamping plates 3 are equidistantly arranged from left to right on the upper side of the workbench 1, the clamping plates 3 are all arranged in an arc shape, anti-skid pads 12 are fixed to inner arc surfaces of the clamping plates 3, and friction between the clamping plates 3 and the nodular cast iron pipe is increased through the anti-skid pads 12; the outer arc surfaces of the clamping plates 3 are welded and fixed with supporting frames 4, the supporting frames 4 are arranged in an inverted L shape, and the bottom ends of vertical rods of the supporting frames 4 are inserted into the workbench 1 in a sliding mode; it also includes:

the driving motor 5 is riveted and fixed on the front side wall of the workbench 1, the driving motor 5 is connected with an external power supply, and an output shaft of the driving motor 5 is inserted in the workbench 1;

the driving screw rods 6 are arranged in a cavity in the workbench 1 at equal intervals from left to right, two ends of each driving screw rod 6 are arranged oppositely to threads on two sides by taking the middle end as the center, two ends of each driving screw rod 6 are respectively screwed with two side walls of the cavity through bearings, one ends of the driving screw rods 6 are connected through a synchronous wheel transmission assembly, the front end of the driving screw rod 6 on the left side is riveted and fixed with an output shaft of the driving motor 5, and the vertical ends of the front and rear corresponding support frames 4 are respectively riveted and fixed on nuts at the front and rear ends of the driving screw rod 6 adjacent to the driving screw rods;

the supporting plates 7 are arranged in an arc shape, the supporting plates 7 are suspended on the middle side above the workbench 1 at equal intervals from left to right, and the supporting plates 7 and the clamping plates 3 are arranged in a staggered manner;

a plurality of supporting tubes 8, wherein one of the supporting tubes 8 is correspondingly arranged at the lower side of the supporting plate 7, and the lower ends of the supporting tubes 8 are riveted and fixed on the upper surface of the workbench 1;

the supporting inserted bars 9 are provided with a plurality of supporting inserted bars 9, one of the supporting inserted bars 9 is correspondingly inserted into the supporting tube 8, the positioning bolts are arranged in a manner of abutting against the outer annular wall of the supporting inserted bar 9 after penetrating through the supporting tube 8, and the upper ends of the supporting inserted bars 9 are riveted and fixed with the lower side wall of the supporting plate 7 after penetrating through the upper ends of the supporting tube 8;

the end fixing mechanism 10 is arranged on one side of the upper surface of the workbench 1, and the central point of the end fixing mechanism 10 and the circle center of the clamping plate 3 are arranged in the same straight line;

a plurality of driving mechanisms 11, wherein one of the driving mechanisms 11 is correspondingly arranged between the front clamping plate 3 and the rear clamping plate 3, and the driving mechanisms 11 are fixed on the workbench 1;

according to the technical scheme, bolts on a supporting pipe 8 are loosened according to the diameter of the nodular cast iron pipe, the height of a supporting inserted rod 9 is adjusted, the position of a supporting plate 7 is further adjusted, after the nodular cast iron pipe is placed on the supporting plate 7, the circle center of the nodular cast iron pipe and the circle center of a clamping plate 3 are in the same plane, then the nodular cast iron pipe is placed on the supporting plate 7, a driving mechanism 11 is started, the driving mechanism 11 drives the nodular cast iron pipe to move towards one side of an end fixing mechanism 10 until the nodular cast iron pipe is sleeved on the end fixing mechanism 10, the end of the nodular cast iron pipe is fixed through the end fixing mechanism 10, then a driving motor 5 is started, the driving motor 5 drives a driving screw rod 6 connected with the driving screw rod to rotate, the driving screw rod 6 drives another plurality of driving screw rods 6 to rotate through a synchronous wheel transmission cast iron assembly, the driving screw rods 6 respectively drive a supporting frame 4 connected with the driving screw rods to move through screw rods at two ends of the driving screw rods to drive the clamping plate 3 to move, and the clamping plate 3 opposite to clamp the outer ring wall of the nodular cast iron pipe, and the position of the nodular cast iron pipe is positioned.

Example 2:

referring to fig. 1-2 and 5-6, the tip fixing mechanism 10 according to embodiment 1 includes:

the support seat 10-1 is riveted and fixed on the upper surface of the workbench 1, and an inserting plate 10-2 is inserted into the support seat 10-1 and fixed through a bolt;

the rotary seat 10-3 is suspended above the workbench 1, and a protrusion on one side of the rotary seat 10-3 is rotatably connected with the inserting plate 10-2 through a bearing;

the rotating gear 10-4 is arranged in the rotating seat 10-3, and rotating shafts on two sides of the rotating gear 10-4 are respectively in rotary connection with two side walls of the rotating seat 10-3 through bearings;

the first racks 10-5 are arranged, the first racks 10-5 are respectively arranged on the front side and the rear side of the rotating gear 10-4, the first racks 10-5 are meshed with the rotating gear 10-4, and the front first racks 10-5 and the rear first racks 10-5 are arranged in a staggered mode;

the number two of the racks 10-6 is two, the racks 10-6 are respectively arranged on the upper side and the lower side of the rotating gear 10-4, the racks 10-6 are meshed with the rotating gear 10-4, and the racks 10-6 are arranged in a staggered manner;

the springs 10-7, the number of the springs 10-7 is four, one of the springs is correspondingly riveted and fixed on one end wall of the first rack 10-5 and the second rack 10-6 adjacent to the rotating gear 10-4, and the other end of the spring 10-7 is riveted and fixed on the inner wall of the rotating seat 10-3;

the number of the supporting columns 10-8 is four, one of the supporting columns 10-8 is correspondingly inserted into the spring 10-7, two ends of each supporting column 10-8 are respectively riveted and fixed on the inner wall of the rotating seat 10-3, and the first rack 10-5 and the second rack 10-6 are respectively movably sleeved on the supporting columns 10-8 adjacent to the first rack;

the push rod 10-9 is movably inserted into the upper side wall of the rotating seat 10-3, and the lower end of the push rod 10-9 is riveted and fixed with the top end of the first rack 10-5 positioned on the upper side;

the number of the connecting frames 10-10 is four, the connecting frames 10-10 are all arranged in an L shape, one side edge of each connecting frame 10-10 movably penetrates through a sliding groove in the side wall of the rotary seat 10-3 far away from the plugboard 10-2 and then is riveted and fixed on the side walls of the first rack 10-5 and the second rack 10-6 in a one-to-one correspondence mode, and the end head of the other side edge of each connecting frame 10-10 is arranged in the sliding groove in the side wall of the rotary seat 10-3 far away from the plugboard 10-2 in a sliding mode through a sliding block in a sliding mode;

the number of the clamping rods 10-11 is four, and one of the clamping rods 10-11 is correspondingly riveted and fixed on the side wall of the connecting frame 10-10 positioned on the outer side edge of the rotating seat 10-3; an anti-slip strip 13 is fixed on one side wall of the clamping rod 10-11 far away from the center of the rotating seat 10-3;

according to the technical scheme, when clamping is carried out, the push rod 10-9 is pressed down, the push rod 10-9 drives the first rack 10-5 connected with the push rod to move downwards, the first rack 10-5 drives the rotating gear 10-4 to rotate, the rotating gear 10-4 drives the first rack 10-5 on the other side to move upwards, meanwhile, the rotating gear 10-4 drives the second racks 10-6 on the upper side and the lower side to move in opposite directions, the spring 10-7 is compressed at the moment, the two first racks 10-5 and the two second racks 10-6 respectively drive the connecting frames 10-10 connected with the first racks to move towards the center of the rotating seat 10-3, the clamping rod 10-11 is made to move to the center of the rotating seat 10-3, then the graphite cast iron pipe is sleeved to the outer sides of the four clamping rods 10-11, the push rod 10-9 is loosened, and the spring 10-7 pushes the first racks 10-5 and the second racks 10-6 connected with the first racks to move towards the initial position until the clamping rod 10-11 is positioned on the inner wall of the graphite cast iron pipe, and the friction force between the graphite cast iron pipe and the clamping rod 10-11 is increased.

Example 3:

referring to fig. 3 and 4, in the embodiment 1, the driving mechanism 11 includes:

the electric push rods 11-1 are arranged, the electric push rods 11-1 are arranged in a front-back symmetrical mode and are arranged on the upper surface of the workbench 1, and the electric push rods 11-1 are connected with an external power supply;

the fixing frame 11-2 is arranged in a U shape, and the front side and the rear side of the lower surface of the transverse plate of the fixing frame 11-2 are respectively riveted and fixed with piston rods of the electric push rods 11-1 at the front side and the rear side;

the driving wheel 11-3 is embedded in the fixed frame 11-2, and rotating shafts on the front side and the rear side of the driving wheel 11-3 are respectively connected with the front side wall and the rear side wall of the fixed frame 11-2 in a rotating manner through bearings;

the rotating motor 11-4 is riveted and fixed on one side of the lower surface of the transverse plate of the fixed frame 11-2, the rotating motor 11-4 is connected with an external power supply, and an output shaft of the rotating motor 11-4 is connected with a rotating shaft on the rear side of the driving wheel 11-3 through a synchronizing wheel transmission assembly;

by the technical scheme, the electric push rod 11-1 is started, the electric push rod 11-1 drives the fixing frame 11-2 to move upwards until the upper side of the outer ring wall of the driving wheel 11-3 in the fixing frame 11-2 and the middle side of the inner wall of the supporting plate 7 are on the same plane, then the rotating motor 11-4 is started, the rotating motor 11-4 drives the driving wheel 11-3 to rotate through the synchronous wheel transmission assembly, and the driving wheel 11-3 drives the nodular cast iron pipe in the rotating process, so that the nodular cast iron pipe is driven to move.

Example 4:

referring to fig. 1 and 3-4, based on embodiment 3, a plurality of circular grooves 14 are equidistantly formed in the upper surface of the table 1, the circular grooves 14 are arranged in one-to-one correspondence with a plurality of driving mechanisms 11, a rotating plate 15 is arranged in each circular groove 14, the outer edge of each rotating plate 15 is slidably arranged in a sliding groove in the inner annular wall of each circular groove 14, two electric push rods 11-1 in the same driving mechanism 11 are respectively riveted and fixed on two sides of the upper surface of the rotating plate 15 adjacent to the electric push rods, a limit screw 16 is inserted into the left side of each rotating plate 15, and the limit screw 16 penetrates through the rotating plate 15 and is screwed with the inner wall of each circular groove 14 through threads;

through the technical scheme, when the nodular cast iron pipe is clamped and needs to be subjected to surface replacement processing, the limit screw 16 is screwed off, so that the limit screw 16 is separated from the inner wall of the circular groove 14, the rotating plate 15 is rotated by 90 degrees, then the limit screw 16 is screwed into the circular groove 14, so that the rotating plate 15 is limited, at the moment, the driving wheel 11-3 in the driving mechanism 11 is parallel to the nodular cast iron pipe, and the nodular cast iron pipe is driven to rotate by the driving wheel 11-3, so that the nodular cast iron pipe rotates by taking the center of the nodular cast iron pipe as an axis point, and the surface replacement effect is achieved.

When the device is used, bolts on the supporting tube 8 are loosened according to the diameter of the nodular cast iron pipe, the height of the supporting inserted link 9 is adjusted, the position of the supporting plate 7 is further adjusted, after the nodular cast iron pipe is placed on the supporting plate 7, the circle center of the nodular cast iron pipe and the circle center of the clamping plate 3 are in the same plane, then the nodular cast iron pipe is placed on the supporting plate 7, the electric push rod 11-1 is started, the electric push rod 11-1 drives the fixing frame 11-2 to move upwards until the upper side of the outer ring wall of the driving wheel 11-3 in the fixing frame 11-2 and the middle side of the inner wall of the supporting plate 7 are in the same plane, then the rotating motor 11-4 is started, the rotating motor 11-4 drives the driving wheel 11-3 to rotate through the synchronous wheel transmission component, the driving wheel 11-3 drives the nodular cast iron pipe in the rotating process, so as to drive the nodular cast iron pipe to move towards one side of the end fixing mechanism 10 until the nodular cast iron pipe is sleeved on the end fixing mechanism 10, when clamping is carried out, the push rod 10-9 is pressed, the push rod 10-9 drives the first rack 10-5 connected with the push rod to move downwards, the first rack 10-5 drives the rotating gear 10-4 to rotate, the rotating gear 10-4 drives the first rack 10-5 at the other side to move upwards, meanwhile, the rotating gear 10-4 drives the second racks 10-6 at the upper side and the lower side to move towards opposite directions, at the moment, the spring 10-7 is compressed, the two first racks 10-5 and the two second racks 10-6 respectively drive the connecting frames 10-10 connected with the first racks to move towards the center of the rotating seat 10-3, so that the clamping rod 10-11 moves to the center of the rotating seat 10-3, then, the graphite cast iron pipe is sleeved outside the four clamping rods 10-11, the pushing rods 10-9 are loosened, the springs 10-7 push the first rack 10-5 and the second rack 10-6 connected with the pushing rods to move towards the initial positions until the clamping rods 10-11 abut against the inner wall of the graphite cast iron pipe, then the driving motor 5 is started, the driving screw 6 connected with the driving screw 5 drives the driving screw 6 to rotate, the driving screw 6 drives another plurality of driving screws 6 to rotate through a synchronous wheel transmission assembly, the driving screws 6 respectively drive the supporting frames 4 connected with the driving screws to move through nuts at two ends of the driving screws, so that the clamping plates 3 are driven to move until the front clamping plate 3 and the rear clamping plate 3 opposite to each other clamp the outer annular wall of the graphite cast iron pipe, so that the position of the graphite cast iron pipe is positioned, when the graphite cast iron pipe is clamped and the surface needs to be changed, the limiting screws 16 are screwed down, so that the limiting screws 16 are separated from the inner wall of the circular groove 14, the rotating plate 15 is rotated, and the driving wheel 11 in the graphite cast iron pipe is driven to rotate through the center of the driving wheel 11.

Compared with the prior art, the beneficial effects of the embodiment are as follows:

1. the position of the clamping plate 3 can be adjusted through the matching of the driving motor 5 and the driving screw rod 6, so that the nodular cast iron pipes with different diameters can be used, a plurality of supporting plates 7 are arranged on the lower side of each nodular cast iron pipe, the height of each supporting plate 7 can be adjusted, the nodular cast iron pipes are supported while the clamping of the nodular cast iron pipes is not influenced, and the stability of the nodular cast iron pipes is improved;

2. an end fixing mechanism 10 is arranged on one side of the workbench 1, so that the end part of the nodular cast iron pipe can be limited and fixed, and the stability in positioning is further improved;

3. the driving mechanisms 11 are arranged on the lower sides between the two clamping plates 3 which are symmetrical in the front and the back, the clamping plates can be placed on the supporting plate 7 from one side, far away from the end fixing mechanism 10, of the workbench 1 in the placing process, and the driving mechanisms 11 are used for driving in the placing process, so that the labor amount of workers is reduced;

4. the rotary plate 15 is arranged below the driving mechanism 11, and the rotary plate 15 is embedded in and slides in the circular groove 14 on the upper surface of the workbench 1, so that the nodular cast iron pipe can be driven to change the surface when the surface needs to be changed, and the machining is convenient.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims (6)

1. The utility model provides a nodular cast iron processing is with double-layered formula location frock, it contains workstation (1), supporting legs (2), grip block (3) and support frame (4), the four corners of workstation (1) outer bottom wall all is fixed with supporting legs (2), the upside of workstation (1) is equipped with two liang of relative grip blocks (3) from left to right equidistance, grip block (3) all are the arc setting, support frame (4) are all fixed on the outer arc face of grip block (3), this support frame (4) are the shape of falling "L" and set up, the bottom of the montant of support frame (4) slides and inserts in workstation (1); it is characterized in that it also comprises:

the driving motor (5) is fixed on the front side wall of the workbench (1), the driving motor (5) is connected with an external power supply, and an output shaft of the driving motor (5) is inserted in the workbench (1);

the driving screw rods (6) are arranged in a cavity in the workbench (1) at equal intervals from left to right, two ends of each driving screw rod (6) are arranged oppositely to threads on two sides by taking the middle end as the center, two ends of each driving screw rod (6) are connected with two side walls of the cavity in a screwing mode through bearings, one ends of the driving screw rods (6) are connected through a synchronizing wheel transmission assembly, the other end of one driving screw rod (6) is fixedly connected with an output shaft of a driving motor (5), and the vertical ends of the front and rear corresponding support frames (4) are fixed on screw nuts at the front and rear ends of the driving screw rod (6) adjacent to the driving screw rod respectively;

the supporting plates (7) are arranged in an arc shape, the supporting plates (7) are suspended on the middle side above the workbench (1) at equal intervals from left to right, and the supporting plates (7) and the clamping plates (3) are arranged in a staggered manner;

a plurality of supporting tubes (8), wherein one of the supporting tubes (8) is correspondingly arranged at the lower side of the supporting plate (7), and the lower ends of the supporting tubes (8) are fixed on the upper surface of the workbench (1);

the supporting inserted rods (9) are provided in a plurality of numbers, one of the supporting inserted rods is correspondingly inserted into the supporting tube (8), the positioning bolts are arranged in a manner of abutting against the outer ring wall of the supporting inserted rods (9) after penetrating through the supporting tube (8), and the upper ends of the supporting inserted rods (9) are fixedly connected with the lower side wall of the supporting plate (7) after penetrating through the upper ends of the supporting tube (8);

the end fixing mechanism (10), the end fixing mechanism (10) is arranged on one side of the upper surface of the workbench (1), and the central point of the end fixing mechanism (10) and the circle center of the clamping plate (3) are arranged in the same straight line;

the driving mechanisms (11) are multiple, one of the driving mechanisms (11) is correspondingly arranged between the front clamping plate and the rear clamping plate (3), and the driving mechanisms (11) are fixed on the workbench (1);

according to the technical scheme, bolts on a supporting pipe (8) are loosened according to the diameter of the nodular cast iron pipe, the height of a supporting inserted rod (9) is adjusted, the position of a supporting plate (7) is further adjusted, after the nodular cast iron pipe is placed on the supporting plate (7), the circle center of the nodular cast iron pipe and the circle center of a clamping plate (3) are in the same plane, then the nodular cast iron pipe is placed on the supporting plate (7), a driving mechanism (11) is started, the driving mechanism (11) drives the nodular cast iron pipe to move towards one side of an end fixing mechanism (10) until the nodular cast iron pipe is sleeved on the end fixing mechanism (10), the end of the nodular cast iron pipe is fixed through the end fixing mechanism (10), then a driving motor (5) is started, the driving motor (5) drives a driving screw rod (6) connected with the driving screw rod to rotate, the driving screw rod (6) drives a plurality of driving screw rods (6) to rotate through a synchronous wheel transmission assembly, the driving screw rods (6) respectively drive the supporting frames (4) connected with the driving screw rods to move until the clamping plate (3) moves to clamp the nodular cast iron pipe, and accordingly the position of the nodular cast iron pipe is clamped on the front and the outer ring wall.

2. The opposite-clamping type positioning tool for nodular cast iron machining according to claim 1 is characterized in that: the inner arc surfaces of the clamping plates (3) are fixed with anti-skid pads (12);

the friction force between the clamping plate (3) and the nodular cast iron pipe is increased through the anti-slip pad (12).

3. The opposite-clamping type positioning tool for nodular cast iron machining according to claim 1 is characterized in that: the end fixing mechanism (10) comprises:

the supporting seat (10-1) is fixed on the upper surface of the workbench (1), and an inserting plate (10-2) is inserted into the supporting seat (10-1) and fixed through a bolt;

the rotary seat (10-3) is suspended above the workbench (1), and a protrusion on one side of the rotary seat (10-3) is in rotary connection with the inserting plate (10-2) through a bearing;

the rotating gear (10-4), the rotating gear (10-4) is arranged in the rotating seat (10-3), and rotating shafts on two sides of the rotating gear (10-4) are respectively connected with two side walls of the rotating seat (10-3) in a rotating mode through bearings;

the first racks (10-5) are arranged on the front side and the rear side of the rotating gear (10-4), the first racks (10-5) are meshed with the rotating gear (10-4), and the front first racks (10-5) and the rear first racks (10-5) are arranged in a staggered mode;

the number two racks (10-6) are arranged, the number two racks (10-6) are respectively arranged on the upper side and the lower side of the rotating gear (10-4), the number two racks (10-6) are meshed with the rotating gear (10-4), and the upper number two racks (10-6) and the lower number two racks (10-6) are arranged in a staggered mode;

the number of the springs (10-7) is four, one of the springs (10-7) is correspondingly fixed on one end wall of the first rack (10-5) and the second rack (10-6) adjacent to the rotating gear (10-4), and the other end of the spring (10-7) is fixed on the inner wall of the rotating seat (10-3);

the number of the supporting columns (10-8) is four, one of the four supporting columns (10-8) is correspondingly inserted into the spring (10-7), two ends of each supporting column (10-8) are respectively fixed on the inner wall of the rotating seat (10-3), and the first rack (10-5) and the second rack (10-6) are respectively movably sleeved on the supporting columns (10-8) adjacent to the first rack;

the push rod (10-9), the push rod (10-9) is movably inserted into the upper side wall of the rotating seat (10-3), and the lower end of the push rod (10-9) is fixedly connected with the top end of the first rack (10-5) positioned on the upper side;

the number of the connecting frames (10-10) is four, the connecting frames (10-10) are all arranged in an L shape, one side edge of each connecting frame (10-10) movably penetrates through the rotary seat (10-3) and is far away from the sliding groove in one side wall of the inserting plate (10-2), and then is correspondingly fixed on the side walls of the first rack (10-5) and the second rack (10-6) one by one, and the end of the other side edge of each connecting frame (10-10) is arranged in the sliding groove in one side wall, far away from the inserting plate (10-2), of the rotary seat (10-3) in a sliding mode through the sliding block in a sliding mode;

the number of the clamping rods (10-11) is four, and one of the clamping rods (10-11) is correspondingly fixed on the side wall of the connecting frame (10-10) positioned on the outer side of the rotating seat (10-3);

when in clamping, the push rod (10-9) is pressed down, the push rod (10-9) drives the first rack (10-5) connected with the push rod to move downwards, the first rack (10-5) drives the rotating gear (10-4) to rotate, the rotating gear (10-4) drives the first rack (10-5) on the other side to move upwards, meanwhile, the rotating gear (10-4) drives the second racks (10-6) on the upper side and the lower side to move in opposite directions, the spring (10-7) is compressed at the moment, the two first racks (10-5) and the two second racks (10-6) respectively drive the connecting frames (10-10) connected with the first racks to move towards the center of the rotating seat (10-3), so that the clamping rods (10-11) move to the center of the rotating seat (10-3), then the graphite pipe is sleeved on the outer sides of the four clamping rods (10-11), the push rod (10-9) is loosened, and the spring (10-7) pushes the first rack (10-5) connected with the graphite pipe to move towards the inner wall of the graphite pipe (10-6) until the initial position of the graphite pipe (10-11).

4. The opposite-clamping type positioning tool for nodular cast iron machining according to claim 3, is characterized in that: anti-slip strips (13) are fixed on one side wall of the clamping rod (10-11) far away from the center of the rotating seat (10-3);

the friction force between the clamping rods (10-11) and the inner wall of the nodular cast iron pipe is increased through the anti-slip strips (13).

5. The opposite-clamping type positioning tool for nodular cast iron machining according to claim 1, characterized in that: the drive mechanism (11) comprises:

the two electric push rods (11-1) are arranged on the upper surface of the workbench (1) in a front-back symmetrical mode, and the electric push rods (11-1) are connected with an external power supply;

the fixing frame (11-2), the fixing frame (11-2) is arranged in a U shape, and the front side and the rear side of the lower surface of the transverse plate of the fixing frame (11-2) are respectively and fixedly connected with the piston rods of the electric push rods (11-1) at the front side and the rear side;

the driving wheel (11-3) is embedded in the fixed frame (11-2), and rotating shafts on the front side and the rear side of the driving wheel (11-3) are respectively connected with the front side wall and the rear side wall of the fixed frame (11-2) in a rotating mode through bearings;

the rotating motor (11-4), the rotating motor (11-4) is fixed on one side of the lower surface of the transverse plate of the fixed frame (11-2), the rotating motor (11-4) is connected with an external power supply, and an output shaft of the rotating motor (11-4) is connected with a rotating shaft on one side of the driving wheel (11-3) through a synchronizing wheel transmission assembly;

the electric push rod (11-1) is started, the electric push rod (11-1) drives the fixing frame (11-2) to move upwards until the upper side of the outer ring wall of the driving wheel (11-3) in the fixing frame (11-2) and the middle side of the inner wall of the supporting plate (7) are on the same plane, then the rotating motor (11-4) is started, the rotating motor (11-4) drives the driving wheel (11-3) to rotate through the synchronous wheel transmission assembly, and the driving wheel (11-3) drives the nodular cast iron pipe in the rotating process, so that the nodular cast iron pipe is driven to move.

6. The opposite-clamping type positioning tool for nodular cast iron machining according to claim 5, is characterized in that: a plurality of circular grooves (14) are equidistantly arranged on the upper surface of the workbench (1), the circular grooves (14) are arranged in one-to-one correspondence with a plurality of driving mechanisms (11), rotating plates (15) are arranged in the circular grooves (14), the outer edges of the rotating plates (15) are arranged in sliding grooves in the inner annular wall of the circular grooves (14) in a sliding manner, two electric push rods (11-1) in the same driving mechanism (11) are respectively fixed on two sides of the upper surface of the rotating plate (15) adjacent to the electric push rods, a limiting screw rod (16) is inserted into one side of each rotating plate (15), and the limiting screw rod (16) penetrates through the rotating plates (15) and is in screwed connection with the inner wall of the circular grooves (14) through threads;

when the nodular cast iron pipe is clamped well and needs to be subjected to surface replacement processing, the limiting screw (16) is screwed off to enable the limiting screw (16) to be separated from the inner wall of the circular groove (14), the rotating plate (15) is rotated by 90 degrees, then the limiting screw (16) is screwed into the circular groove (14) to limit the rotating plate (15), at the moment, the driving wheel (11-3) in the driving mechanism (11) is parallel to the nodular cast iron pipe, the nodular cast iron pipe is driven to rotate through the driving wheel (11-3), and the nodular cast iron pipe rotates by taking the center of the nodular cast iron pipe as an axial point, so that the surface replacement effect is achieved.

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