CN216657971U

CN216657971U - Manipulator for sand mold overturning

Info

Publication number: CN216657971U
Application number: CN202123407583.4U
Authority: CN
Inventors: 安东; 周鹏; 陆勤洋
Original assignee: ANHUI QUANCHAI TIANHE MACHINERY CO LTD
Current assignee: ANHUI QUANCHAI TIANHE MACHINERY CO LTD
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-03
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a manipulator for sand mold turnover, which comprises a cross beam, wherein one side of the cross beam is provided with a chute, two clamping arms are connected in the chute in a sliding manner, one side of each clamping arm in the chute is rotatably connected with a lead screw, the lead screw is rotatably arranged in the chute, one end of each lead screw is fixedly connected with a double-output-shaft motor, and the double-output-shaft motors are fixedly arranged in the middle of the chute; another lateral wall fixedly connected with servo motor of arm lock, servo motor's one end is rotated and is connected with the steering gear, steering gear fixed connection is connected with the driving shaft on the arm lock and rotate, and one side of driving shaft is connected with the driven shaft through gear engagement, and the driven shaft rotates and installs in one side of arm lock and the tip fixedly connected with grip block of driven shaft, and one side fixedly connected with spliced pole that the grip block kept away from the arm lock is kept away from to the driven shaft.

Description

Manipulator for sand mold overturning

Technical Field

The utility model relates to the technical field of sand mould turning of mechanical equipment, in particular to a manipulator for turning a sand mould.

Background

Sand casting refers to a casting process that produces a casting in a sand mold. Steel, iron and most nonferrous metal castings can be obtained by sand casting. The molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould can adapt to single-piece production, batch production and mass production of castings, and is a basic process in casting production for a long time. In order to make the sand molds and cores with certain strength and without deformation or damage during handling, molding and pouring of liquid metal, a sand binder is generally added to the casting to bind the loose sand particles together to form the molding sand.

At present, high-end production lines at home and abroad adopt hoisting sand boxes to turn over and mould boxes, namely, hoisting equipment is used for hoisting box handles at two ends of the sand box, directly hoisting the sand box, manually turning the sand box or driving a rotating arm to turn over the sand box by using a hydraulic cylinder, and mould boxes. The patent publication No. CN206839142U discloses a sand box overturning manipulator, which comprises a lifting rail and a cross beam which are perpendicular to each other, wherein a connecting rod is arranged on the lifting rail, a sliding seat connected with the connecting rod is arranged on the cross beam, a mechanical arm is arranged below the sliding seat, and a supporting claw is arranged at the tail end of the mechanical arm.

The other is as the grant chinese patent of publication No. CN208772404U discloses a sand mould detects with rotating mechanical arm, the top of head tree rotates and is equipped with the second revolving stage the fixed connection board that is equipped with in top of second revolving stage, the one end of arm is passed connection board and is connected with the flexible end hinge of fixing the third cylinder in second revolving stage one side, the below of the arm other end rotates with the one end of rotor arm to be connected, the below of the other end of rotor arm rotates and is equipped with the push rod, the fixed carriage that is equipped with of lower extreme of push rod the inside symmetry of carriage slides and is equipped with two sets of arm lock, the intermediate position of arm lock rotates and is equipped with first revolving stage the other end of arm lock rotates and is equipped with the holder, the holder is connected with the flexible end hinge of fixing the first cylinder on the arm lock.

The two patents improve the turnover efficiency, but the turnover angle is limited, and the omnibearing turnover operation cannot be realized, so that a manipulator for turnover of a sand mold is provided for solving the problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a manipulator for overturning a sand mold, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a manipulator for sand mold turnover comprises a cross beam, wherein a sliding groove is formed in one side of the cross beam, two clamping arms are connected in the sliding groove in a sliding mode, a lead screw is connected to one side, located in the sliding groove, of each clamping arm in a rotating mode, the lead screw is installed in the sliding groove in a rotating mode, a double-output-shaft motor is fixedly connected to one end of the lead screw, and the double-output-shaft motor is fixedly installed in the middle of the sliding groove;

another lateral wall fixedly connected with servo motor of arm lock, servo motor's one end is rotated and is connected with the steering gear, steering gear fixed connection is connected with the driving shaft on the arm lock and rotate, one side of driving shaft is connected with the driven shaft through gear engagement, the driven shaft rotates and installs in one side of arm lock and the tip fixedly connected with grip block of driven shaft, one side fixedly connected with spliced pole of arm lock is kept away from to the grip block.

Preferably, the two ends of one side of the cross beam, which is close to the sliding groove, are concavely provided with clamping grooves, and the clamping grooves are of rectangular structures.

Preferably, the one end fixedly connected with slider of arm lock, slider sliding connection is in the spout, one side that the arm lock was kept away from to the slider runs through and is equipped with the screw hole, the lead screw is connected to the screw hole internal rotation, slide clamping groove has been seted up respectively to the both sides of slider, slide clamping groove sliding connection is on the crossbeam and the both ends sliding connection of arm lock is in the draw-in groove.

Preferably, output shafts at two ends of the double-output-shaft motor are coaxially and fixedly connected with the lead screw, and the rotating directions of the lead screws at the two ends are opposite.

Preferably, the cavity of the one end that the crossbeam was kept away from to the arm lock is equipped with the cavity, both sides in the cavity rotate respectively and connect driving shaft and driven shaft, the driving shaft external fixation cover is equipped with the driving gear, the driven shaft external fixation cover is equipped with driven gear, the driving gear all rotates with driven gear and installs in the cavity and intermeshing connects.

Preferably, the steering gear is provided with two output shafts, the axes of the two output shafts are perpendicular to each other, one output shaft of the steering gear is fixedly connected with the servo motor, and the other output shaft of the steering gear is fixedly connected with the driving shaft.

Preferably, the clamping arms are arranged in parallel, and the connecting columns are symmetrically arranged in a lattice mode by taking the axis of the driven shaft as the axis of the driven shaft.

Compared with the prior art, the utility model has the beneficial effects that: the double-output-shaft motor drives the screw rod to rotate, so that the distance between the clamping arms is adjusted, the double-output-shaft clamping mechanism is convenient to adapt to sand boxes with different sizes, and the application range of the manipulator is enlarged; the sliding clamping groove and the sliding block arranged at the end part of the clamping arm are matched with the clamping groove and the sliding groove on the cross beam, so that the moving stability of the clamping arm is ensured, the moving stability of the sand box clamped by the clamping arm is further ensured, the sand box is prevented from shaking and falling off, and the yield of the mold in the sand box is ensured; the driving shaft is driven to rotate through the servo motor in a matching mode with the steering gear, the driving shaft drives the driven shaft to rotate through the meshing of the gears, the driven shaft further drives the clamping plate to rotate 360 degrees, the rotating angle is larger, and the sand box can be turned more conveniently.

Drawings

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

FIG. 2 is a schematic view of a clamp arm structure according to the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention;

FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

figure 5 is a partial cross-sectional view of the clamp arm of the present invention.

In the figure: the device comprises a cross beam 1, a clamping groove 101, a lead screw 2, a double-output-shaft motor 3, a sliding groove 4, a clamping arm 5, a threaded hole 51, a sliding clamping groove 52, a sliding block 53, a cavity 54, a servo motor 6, a steering gear 7, a driven shaft 8, a driven gear 81, a clamping plate 9, a connecting column 10, a driving shaft 11 and a driving gear 111.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, a first embodiment of the utility model provides a manipulator for sand mold turnover, which comprises a cross beam 1, wherein one side of the cross beam 1 is provided with a chute 4, two clamping arms 5 are slidably connected in the chute 4, one side of each clamping arm 5 in the chute 4 is rotatably connected with a lead screw 2, the lead screw 2 is rotatably installed in the chute 4, one end of each lead screw is fixedly connected with a double-output-shaft motor 3, and the double-output-shaft motor 3 is fixedly installed in the middle of the chute 4;

another lateral wall fixedly connected with servo motor 6 of arm lock 5, the one end of servo motor 6 is rotated and is connected with steering gear 7, steering gear 7 fixed connection is on arm lock 5 and rotate and be connected with driving shaft 11, one side of driving shaft 11 is connected with driven shaft 8 through gear engagement, driven shaft 8 rotates and installs in one side of arm lock 5 and the tip fixedly connected with grip block 9 of driven shaft 8, one side fixedly connected with spliced pole 10 of arm lock 5 is kept away from to grip block 9. When the mechanical arm is put into operation, the cross beam 1 is fixedly connected to the end part of a swing arm of a production line, the end part of one side of each clamping arm 5 is slidably arranged in the sliding groove 4, and the motor 3 with double output shafts drives the screw rod 2 to rotate so as to adjust the distance between the two clamping arms 5, so that the mechanical arm is convenient to adapt to sand boxes with different sizes, and the application range of the mechanical arm is enlarged; drive driving shaft 11 through 6 cooperation redirectors 7 of servo motor and rotate, then through the meshing transmission of gear, drive driven shaft 8 and rotate, driven shaft 8 drives fixed connection's grip block 9 and rotates, pegs graft the sand box through spliced pole 10 between the grip block 9, when grip block 9 rotates, and then drives the sand box of pegging graft and carry out 360 degrees circular motion, and the pivoted angle is bigger, makes things convenient for the use of sand box upset more.

Example 2

Referring to fig. 1 to 5, a second embodiment of the present invention is based on the previous embodiment, specifically, two ends of one side of the cross beam 1 close to the sliding chute 4 are concavely provided with clamping grooves 101, and the clamping grooves 101 are rectangular structures.

Specifically, one end fixedly connected with slider 53 of arm lock 5, slider 53 sliding connection is in spout 4, one side that 5 of arm lock was kept away from to slider 53 runs through and is equipped with screw hole 51, screw hole 51 internal rotation connecting lead screw 2, sliding clamping groove 52 has been seted up respectively to slider 53's both sides, sliding clamping groove 52 sliding connection is on crossbeam 1 and 5's both ends sliding connection is in draw-in groove 101, draw-in groove 101 cooperation sliding clamping groove 52, slider 53 cooperation spout 4 simultaneously, steadiness when 5 adjustment interval of arm lock have been guaranteed, avoid taking place the slope shake, the stability of work has been guaranteed, also prevent 5 wearing and tearing of arm lock simultaneously.

Specifically, the output shafts at the two ends of the double-output-shaft motor 3 are fixedly connected with the lead screws 2 coaxially, the rotating directions of the lead screws 2 at the two ends are opposite, the lead screws 2 in the opposite rotating directions can drive the clamping arms 5 arranged in parallel to be away from or close to each other, then the distance between the clamping arms 5 is changed synchronously, the sand boxes with different sizes are convenient to use, and the application range of the manipulator is enlarged.

Specifically, one end of the clamping arm 5, which is far away from the cross beam 1, is hollow and provided with a cavity 54, two sides in the cavity 54 are respectively connected with the driving shaft 11 and the driven shaft 8 in a rotating mode, the driving shaft 11 is fixedly sleeved with a driving gear 111, the driven shaft 8 is fixedly sleeved with a driven gear 81, the driving gear 111 and the driven gear 81 are both rotatably installed in the cavity 54 and are connected in an engaged mode, the driving gear 111 and the driven gear 81 are in transmission, 360-degree unlimited rotation can be achieved, the rotating angle is larger, and the sand box can be turned over more conveniently.

Specifically, the steering gear 7 is provided with two output shafts and the axis mutually perpendicular of two output shafts, one side output shaft fixed connection servo motor 6 of steering gear 7, the opposite side output shaft fixed connection driving shaft 11 of steering gear 7, servo motor 6 cooperates the use of steering gear 7, the high space that occupies when having reduced servo motor 6 installation, avoid protruding too high on arm lock 5, when having reduced the swing arm swing of production line, the space area that spare part occupy.

Specifically, 5 mutual parallel arrangement of arm lock, spliced pole 10 use the axis of driven shaft 8 to set up for battle array point symmetry, and the spliced pole 10 that the symmetry set up makes things convenient for the grafting sand box more, and the steadiness when having guaranteed the upset is simultaneously in same straight line at axle center and driven shaft 8.

Example 3

Referring to fig. 1-5, a third embodiment of the present invention is based on the above two embodiments, when in use, the cross beam 1 is fixedly connected to the end of the swing arm of the production line, the slide block 53 fixedly connected to the end of the clamp arm 5 is slidably mounted in the slide groove 4, the screw shaft 2 is rotatably connected to the inside of the threaded hole 51, the dual output shaft motor 3 is fixedly mounted in the middle of the slide groove 4, the output shafts at both sides of the dual output shaft motor 3 are respectively and coaxially and fixedly connected to the screw shaft 2, when the sand box needs to be clamped, the dual output shaft motor 3 is started to drive the screw shaft 2 to rotate, the clamp arms 5 are driven to approach or move away from each other due to the opposite thread rotation directions of the screw shafts 2 at both sides, after the clamp arm 5 is adjusted to a proper position, the connecting column 10 fixedly connected to the clamping plate 9 with the end rotatably connected to align with the connecting holes at both sides of the sand box, and the dual output shaft motor 3 is started again to drive the screw shaft 2 to rotate, the clamping arms 5 are further driven to enable the connecting column 10 to be inserted into the connecting holes in the two sides of the quasi-sand box, at the moment, the sand box is connected with the clamping arms 5, the double-output-shaft motor 3 is matched with the lead screw 2 to drive the two clamping arms 5 to adjust the distance, so that the manipulator can be conveniently suitable for sand boxes with different sizes, and the application range of the manipulator is enlarged; when the sand box needs to be turned over, the servo motor 6 is started, the circuit of the servo motor 6 is connected in a series mode, the servo motor 6 is driven to work simultaneously, the servo motor 6 drives the driving shaft 11 to rotate through the steering of the steering gear 7, the driving shaft 11 drives the driving gear 111 of the fixed connection to rotate after rotating, the driving gear 111 drives the driven gear 81 connected in a meshed mode to rotate, the driven gear 81 drives the driven shaft 8 of the fixed connection to rotate, the driven shaft 8 and the center of the clamping plate 9 are on the same straight line, the clamping plate 9 is driven to do circular motion, the sand box connected with the connecting column 10 in a plugged mode at the moment synchronously rotates, 360-degree rotation can be carried out due to the communication of the servo motor 6 matched with the gear, the sand box is driven to do 360-degree circular motion, the rotating angle is larger, and the sand box can be turned over more conveniently.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a sand mould manipulator for mould upset, includes crossbeam (1), its characterized in that: a sliding groove (4) is formed in one side of the cross beam (1), two clamping arms (5) are connected in the sliding groove (4) in a sliding mode, a lead screw (2) is rotatably connected to one side, located in the sliding groove (4), of each clamping arm (5), the lead screw (2) is rotatably installed in the sliding groove (4), one end of the lead screw is fixedly connected with a double-output-shaft motor (3), and the double-output-shaft motor (3) is fixedly installed in the middle of the sliding groove (4);

another lateral wall fixedly connected with servo motor (6) of arm lock (5), the one end of servo motor (6) is rotated and is connected with steering gear (7), steering gear (7) fixed connection is on arm lock (5) and rotate and be connected with driving shaft (11), one side of driving shaft (11) is connected with driven shaft (8) through gear engagement, driven shaft (8) are rotated and are installed in one side of arm lock (5) and tip fixedly connected with grip block (9) of driven shaft (8), one side fixedly connected with spliced pole (10) of arm lock (5) are kept away from in grip block (9).

2. The manipulator for sand mold turnover according to claim 1, characterized in that: the beam (1) is provided with clamping grooves (101) in the two ends of one side close to the sliding groove (4) in a concave mode, and the clamping grooves (101) are of rectangular structures.

3. The manipulator for sand mold turnover according to claim 2, characterized in that: one end fixedly connected with slider (53) of arm lock (5), slider (53) sliding connection is in spout (4), one side that arm lock (5) were kept away from in slider (53) is run through and is equipped with screw hole (51), screw hole (51) internal rotation connecting lead screw (2), sliding clamping groove (52) have been seted up respectively to the both sides of slider (53), sliding clamping groove (52) sliding connection is on crossbeam (1) and the both ends sliding connection of arm lock (5) is in draw-in groove (101).

4. The manipulator for sand mold turnover according to claim 1, characterized in that: output shafts at two ends of the double-output-shaft motor (3) are coaxially and fixedly connected with the screw rods (2), and the rotating directions of the screw rods (2) at the two ends are opposite.

5. The manipulator for sand mold turnover according to claim 1, characterized in that: one end cavity that crossbeam (1) was kept away from in arm lock (5) is equipped with cavity (54), both sides in cavity (54) rotate respectively and connect driving shaft (11) and driven shaft (8), driving shaft (11) external fixation cover is equipped with driving gear (111), driven shaft (8) external fixation cover is equipped with driven gear (81), driving gear (111) all rotate with driven gear (81) and install in cavity (54) and intermeshing connects.

6. The manipulator for sand mold turnover according to claim 1, characterized in that: the steering gear (7) is provided with two output shafts, the axes of the two output shafts are perpendicular to each other, one output shaft of the steering gear (7) is fixedly connected with the servo motor (6), and the other output shaft of the steering gear (7) is fixedly connected with the driving shaft (11).

7. The manipulator for sand mold turnover according to claim 1, characterized in that: the clamping arms (5) are arranged in parallel, and the connecting columns (10) are symmetrically arranged by taking the axis of the driven shaft (8) as a lattice point.