CN216324973U

CN216324973U - Core setting sand box positioning device

Info

Publication number: CN216324973U
Application number: CN202122910827.4U
Authority: CN
Inventors: 赵林栋; 朱亮; 俄立业; 董永博; 张成纪; 吴俊建
Original assignee: Sinomach Casting & Forging Machinery Co ltd
Current assignee: Sinomach Casting & Forging Machinery Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-04-19
Anticipated expiration: 2031-11-25

Abstract

Core sand box positioner down, including having a base frame, install the lifting support through vertical drive arrangement on the base frame, still fixed mounting has the track support on the base frame, and the platform truck track is all installed to the both sides of track support, corresponds to the orbital position of every platform truck, installs two sets of platform truck gyro wheel prepositioning devices corresponding on the track support, and the lifting support is located between base frame and the track support. The utility model has the positive effects that: according to the core setting sand box positioning device, the separation of the sand box and the trolley can be realized through the vertical lifting of the lifting support, the three-axis accurate positioning of the sand box is realized by means of the sand box longitudinal positioning device, the sand box transverse positioning device and the vertical positioning device, the online positioning accuracy of the sand box is greatly improved, the requirement of the core setting positioning accuracy of the sand box is met, and the size accuracy and the product performance of a casting blank in a production line are further improved.

Description

Core setting sand box positioning device

Technical Field

The utility model relates to the technical field of casting equipment, in particular to a positioning device for a core setting sand box.

Background

The position precision of a sand core placed in a sand box directly influences the size precision and the product performance of a casting blank, in the production of the existing casting moulding line, particularly for an automatic box moulding line, the positioning precision of a core setting position on the sand box can directly influence the final core setting precision, and the positioning mode of the core setting position sand box of the existing common moulding line mainly realizes the positioning by inserting a positioning bolt into a pin hole of the sand box through driving of an oil cylinder or an air cylinder, but the mode can only realize the positioning of the pushing direction of the sand box, has poor positioning precision of other positions of the sand box, and cannot ensure the core setting precision in the production line.

Disclosure of Invention

The utility model aims to provide a core setting sand box positioning device, which separates a sand box from a trolley through a lifting support, and then realizes the three-axis positioning of the sand box by means of a sand box longitudinal positioning device, a sand box transverse positioning device and a vertical positioning device, thereby solving the problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model relates to a core setting sand box positioning device, which comprises a base frame, wherein a lifting support is arranged on the base frame through a vertical driving device, a rail support is also fixedly arranged on the base frame, trolley rails are respectively arranged on two sides of the rail support, two corresponding trolley roller pre-positioning devices are arranged on the rail support corresponding to the position of each trolley rail, the lifting support is positioned between the base frame and the rail support, sand box supports are respectively arranged on two sides of the lifting support extending out of the rail support, the vertical driving device can drive the lifting support and the sand box supports thereon to vertically move relative to the base frame so as to separate a sand box from a trolley, a sand box longitudinal positioning device and a sand box transverse positioning device are respectively arranged on each sand box support, a vertical positioning device is also arranged on the upper side of the sand box supports, and the vertical positioning device can realize the positioning of the longitudinal position of the sand box, the horizontal positioning device of the sand box can realize the positioning of the horizontal position of the sand box, and the vertical positioning device can realize the positioning of the vertical position of the sand box. The vertical driving device comprises a lifting oil cylinder installed on a base frame, a piston rod of the lifting oil cylinder is hinged to a lifting support, a guide rod vertically arranged is installed at the bottom of the lifting support, a guide sleeve matched with the guide rod is installed on the base frame, and the lifting oil cylinder can drive the lifting support to vertically lift between the base frame and a rail support when being started. The trolley roller wheel pre-positioning device comprises a first mounting seat, a connecting plate is mounted on the first mounting seat through a rubber torsion spring, a pre-positioning wheel is mounted on the connecting plate, and the rubber torsion spring always has the tendency of enabling the pre-positioning wheel on the connecting plate to rotate and move upwards. The sand box longitudinal positioning device comprises a second mounting seat mounted on a sand box support, a positioning oil cylinder horizontally arranged is mounted on the second mounting seat, a positioning pin is mounted on a piston rod of the positioning oil cylinder, a positioning guide sleeve matched with the positioning pin is further arranged in the second mounting seat, and adjusting jackscrews are mounted in the second mounting seats on two sides of the positioning guide sleeve. The end part of the positioning pin is provided with a conical surface, and a plurality of supporting rollers arranged along the length direction are arranged on the sand box bracket. The sand box transverse positioning device comprises a third mounting seat mounted on a sand box support, a crank plate is hinged to the top end of the third mounting seat, a clamping oil cylinder is further mounted on the sand box support, a piston rod of the clamping oil cylinder is hinged to one end of the crank plate, a clamping wheel is mounted at the other end of the crank plate, and when the piston rod of the clamping oil cylinder extends out, the clamping wheels on the sand box supports on the two sides can be driven to rotate to be close to each other. The vertical positioning device comprises limiting supports arranged at two ends of the sand box support, and an upper limiting jackscrew is arranged at the top end of each limiting support. The four corners position department corresponding to lifting support all installs down spacing jackscrew on the bed frame, all is equipped with the reinforcing plate on every lifting support of spacing jackscrew upper end down, all installs adjustable pad foot in the four corners position department of bed frame bottom. And the track support is provided with a limiting baffle which is positioned at the two ends of the trolley track in the length direction. Rotatory cardboard is installed in the articulated on the terminal surface of limit baffle inboard, corresponds to the position of rotatory cardboard, installs the swash plate on lifting support, is equipped with on the rotatory cardboard with swash plate matched with inclined plane, install the torsional spring in the pivot of rotatory cardboard, the torsional spring has all the time to make the inclined plane on the rotatory cardboard rotate to the trend that contacts with the swash plate, when lifting support and the swash plate on it rise vertically, can overcome the elasticity of torsional spring and make rotatory cardboard rotate to the orbital upside position department of platform truck.

The utility model has the positive effects that: the core setting sand box positioning device comprises a base frame and a rail support, wherein a trolley rail is arranged on the rail support, a lifting support capable of moving vertically is arranged between the base frame and the rail support, a sand box support is arranged on the lifting support, the separation of a sand box and the trolley can be realized through the vertical lifting of the lifting support, the three-axis accurate positioning of the sand box is realized by virtue of a sand box longitudinal positioning device, a sand box transverse positioning device and a vertical positioning device, the online positioning accuracy of the sand box is greatly improved, the core setting positioning accuracy requirement of the sand box is met, and the size accuracy and the product performance of a casting blank in a production line are further improved.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged partial view of I of FIG. 3;

FIG. 5 is an enlarged partial view of II of FIG. 3;

FIG. 6 is a sectional view taken along line B-B of FIG. 5;

FIG. 7 is an enlarged view of the cross-sectional view taken along line C-C of FIG. 3;

FIG. 8 is a schematic structural view of a rotary clamping plate mounted on a limit baffle;

FIG. 9 is a schematic view of the lifting bracket moving upward to push the rotating chuck plate to rotate to the upper side of the trolley rail;

FIG. 10 is a schematic view showing a state of use in which the carriage and the flask are provided in the present invention.

Detailed Description

The core setting sand box positioning device comprises a base frame 1, a lifting support 2 is arranged on the base frame 1 through a vertical driving device, a track support 3 is fixedly arranged on the base frame 1, trolley tracks 4 are arranged on two sides of the track support 3, sand box trolleys are placed on the trolley tracks 4, and the trolley tracks 4 are butted with tracks of other procedures on a production line.

Corresponding to the position of each trolley track 4, two corresponding trolley roller pre-positioning devices are arranged on the track support 3 and can position the rollers of the trolley on the trolley tracks 4. The lifting support 2 is located between the base frame 1 and the track support 3, the sand box supports 5 are installed on two sides of the lifting support 2 extending out of the track support 3, the lifting support 2 and the sand box supports 5 on the lifting support can be driven to vertically move relative to the base frame 1 by starting of the vertical driving device, the sand boxes are located on the sand box supports 5 on two sides, when the lifting support 2 moves upwards, the sand boxes can be supported and separated from the trolley through the sand box supports 5, the sand boxes after separation are located again, and adverse effects caused by positioning of the trolley or the track errors on the sand boxes can be effectively avoided. The lifting frame 2 may be of frame construction to ensure good stability during lifting.

The sand box longitudinal positioning device and the sand box transverse positioning device are mounted on each sand box support 5, the vertical positioning device is further mounted on the upper side of each sand box support 5, the sand box longitudinal positioning device can achieve positioning of the longitudinal position of the sand box, the sand box transverse positioning device can achieve positioning of the transverse position of the sand box, the vertical positioning device can achieve positioning of the vertical position of the sand box, and three positioning devices sequentially achieve three-axis accurate positioning of the sand box to improve accuracy of core setting operation. The positioning device can be a positioning plate arranged on an output shaft of a power mechanism such as an existing oil cylinder or a motor, or can control the action stroke of an action part through a photoelectric detection device and a plc circuit board.

Further, in order to ensure the stability when the vertical driving device drives the lifting support 2 to lift, the vertical driving device comprises a lifting oil cylinder 6 installed on the base frame 1, a piston rod of the lifting oil cylinder 6 is hinged on the lifting support 2, a guide rod 7 vertically arranged is installed at the bottom of the lifting support 2, a guide sleeve 8 matched with the guide rod 7 is installed on the base frame 1, the lifting support 2 can be driven to vertically lift between the base frame 1 and the track support 3 when the lifting oil cylinder 6 is started, the sand box is lifted through a sand box support 5 on the lifting support 2, and the separation of the sand box and the trolley is realized. The guide rod 7 and the guide sleeve 8 are arranged, so that the vertical movement of the lifting support 2 is guided, and the stability in the moving process is effectively improved.

Further, as shown in fig. 4, the trolley roller pre-positioning device comprises a first mounting seat 9, a connecting plate 11 is mounted on the first mounting seat 9 through a rubber torsion spring 10, a pre-positioning wheel 12 is mounted on the connecting plate 11, the rubber torsion spring 10 always has a tendency of enabling the pre-positioning wheel 12 on the connecting plate 11 to rotate and move upwards, that is, the wheel edge of the trolley roller can be limited on the trolley track 4. When the trolley enters the core box setting device from the previous working procedure device, under the pushing action of external force, the trolley overcomes the elasticity of the rubber torsion spring 10 and passes over the preset wheel 12, and then the preset wheel 12 is restored to the original state, so that the limiting effect is achieved on the preset wheel 12.

Further, in order to realize accurate positioning of the sand box in the length direction of the trolley track 4, as shown in fig. 5 and 6, the sand box longitudinal positioning device comprises a second mounting seat 13 mounted on the sand box support 5, a horizontally arranged positioning oil cylinder 14 is mounted on the second mounting seat 13, a positioning pin 15 is mounted on a piston rod of the positioning oil cylinder 14, a positioning guide sleeve 17 matched with the positioning pin 15 is further arranged in the second mounting seat 13, positioning pin sleeves matched with the positioning pin 15 are mounted on both sides of the sand box, and when the piston rod of the positioning oil cylinder 14 extends out to drive the positioning pin 15 to enter the positioning pin sleeves, positioning of the sand box in the length direction of the trolley track 4 is realized. In order to adjust the relative position of the positioning guide sleeve 17 in the second mounting seat 13 as required and further realize the guiding function of the positioning pin 15, adjusting jackscrews 18 are mounted in the second mounting seats 13 at both sides of the positioning guide sleeve 17.

Further, in order to enable the positioning pin 15 to still extend into the positioning pin sleeve when the positioning pin 15 is in a fit error with a certain distance from the positioning pin sleeve on the sand box, the end part of the positioning pin 15 is provided with the conical surface 16, the arrangement of the conical surface 16 reduces the requirement on the accuracy of moving the sand box, and as long as the conical surface 16 and the positioning pin sleeve overlap with each other, the relative position of the sand box on the sand box support 5 can be adjusted when the positioning pin 15 extends out, so that the positioning pin can enter into the positioning pin sleeve to complete the positioning operation. The sand box support 5 is provided with a plurality of supporting rollers 19 arranged along the length direction, when the sand box support 5 moves upwards, the supporting rollers 19 lift the sand box synchronously, wherein the supporting rollers 19 not only support the sand box, but also reduce the friction force of relative movement between the sand box and the sand box support 5 in the positioning adjustment process, thereby prolonging the service life of the sand box.

Further, as shown in fig. 7, the flask transverse positioning device comprises a third mounting seat 20 mounted on the flask support 5, a crank plate 21 is hinged to the top end of the third mounting seat 20, a clamping cylinder 22 is further mounted on the flask support 5, a piston rod of the clamping cylinder 22 is hinged to one end of the crank plate 21, a clamping wheel 23 is mounted at the other end of the crank plate 21, and when the piston rod of the clamping cylinder 22 extends out, the clamping wheel 23 on the flask supports 5 on both sides can be driven to rotate close, so as to clamp the flask, and realize transverse positioning of the flask, wherein when the clamping wheel 23 rotates close, the side surface of the flask is clamped in a rolling friction manner, so that hard contact between the side surface of the flask and the flask is avoided, and meanwhile, friction between the flask transverse positioning device and the flask can be reduced, and the service life of the flask is further prolonged.

Further, the vertical positioning device comprises limiting brackets 24 arranged at two ends of the sand box bracket 5, an upper limiting jackscrew 25 is mounted at the top end of each limiting bracket 24, the upper limiting jackscrew 25 is located on the upper side of the sand box, and when the sand box moves upwards along with the sand box bracket 5, the height position of the upper limiting jackscrew 25 is adjusted, so that the sand box can be positioned vertically through a mechanical hard limiting mode.

By adopting the positioning device, the action process of realizing the online core setting positioning of the sand box is as follows: the trolley loaded sand box is pushed to the trolley track 4, the trolley roller is locked on the trolley track 4 by a preset wheel 12 in the trolley roller preset position device through the elasticity of a rubber torsion spring 10 in the pushing process, then a piston rod of a lifting oil cylinder 6 extends out, a support roller 19 on a sand box support 5 stably rises along with the lifting support 2, the support roller 19 supports the lower surface of the box belt of the sand box until a positioning pin sleeve on the sand box moves to be flush with a positioning pin 15, the sand box is separated from the trolley at the moment, then the piston rod of a positioning oil cylinder 14 extends out to drive the positioning pin 15 to extend into the positioning pin sleeve, the longitudinal positioning of the sand box is realized, the piston rod of a clamping oil cylinder 22 extends out to drive a clamping wheel 23 to rotate to tightly hold two side surfaces of the sand box, the transverse positioning of the sand box is realized, the lifting support 2 continuously moves upwards, an upper limit jackscrew 25 arranged on a limit support 24 props against the upper surface of the box belt of the sand box, vertical positioning of the sand box is realized in a mechanical hard limiting mode, and after transverse, longitudinal and vertical three-axis accurate positioning of the sand box is completed, the sand core setting work is completed by a robot or a core setting machine.

Further, in order to limit the lower limit position of the downward movement of the lifting support 2, corresponding to the four corners of the lifting support 2, the lower limit jackscrews 26 are installed on the base frame 1, and a reinforcing plate 27 is arranged on the lifting support 2 at the upper end of each lower limit jackscrew 26 to avoid the collision damage of the lower limit jackscrews 26 to the lifting support 2. In order to adjust the installation height position of the whole device as required, adjustable foot pads 28 are installed at the four corners of the bottom of the base frame 1.

Further, in order to prevent the trolley from being lifted when the sand box moves upwards, the track support 3 is provided with limit baffles 29, the limit baffles 29 are positioned at two ends of the trolley track 4 in the length direction, and a gap of 2-5mm can be reserved between the limit baffles 29 and the trolley rollers, so that derailment of the trolley on the trolley track 4 can be effectively prevented.

Further, in order to prevent the trolley rollers from crossing the trolley roller pre-positioning device due to misoperation or production line failure and ensure that the sand box can accurately fall onto the previous trolley in the subsequent falling process, in the process of core setting operation after the sand box is separated from the trolley, as shown in fig. 8, a rotary clamping plate 30 is hinged to the end surface on the inner side of the limit baffle 29, an inclined plate 31 is mounted on the lifting support 2 corresponding to the position of the rotary clamping plate 30, an inclined surface 32 matched with the inclined plate 31 is arranged on the rotary clamping plate 30, a torsion spring 33 is mounted on the rotating shaft of the rotary clamping plate 30, and the torsion spring 33 always tends to enable the inclined surface 32 on the rotary clamping plate 30 to rotate to be in contact with the inclined plate 31. When the lifting bracket 2 and the inclined plate 31 thereon vertically rise, the rotating clamping plate 30 can be rotated to the upper side position of the trolley track 4 against the elasticity of the torsion spring 33.

As shown in fig. 8, which is a schematic view of a state when the lifting support 2 is not lifted, at this time, the rotary clamping plate 30 contacts with the sloping plate 31 under the action of the torsion spring 33, and the rotary clamping plate 30 does not interfere with the movement of the trolley rollers on the trolley track 4, when the subsequent lifting support 2 moves upwards, the sand box is separated from the trolley and the subsequent coring operation is performed, the lifting support 2 moving upwards drives the sloping plate 31 to move upwards synchronously, the rotary clamping plate 30 rotates anticlockwise in the direction shown in fig. 8 against the elasticity of the torsion spring 33 until the state shown in fig. 9, and at this time, the rotary clamping plate 30 rotates to the upper side position of the trolley track 4 to form a mechanical limit on the trolley rollers, so as to ensure that the trolley at the bottom does not move. When the sand box vertically moves downwards after the core is completely removed from the sand box, the rotating clamping plate 30 resets, and the trolley can freely move on the trolley track 4. Wherein the inclined plate 31 can not only provide the cooperation support of bigger area for inclined plane 32 on the rotatory cardboard 30, can also play the effect of smooth transition at rotatory in-process of rotatory cardboard 30, avoids rotatory cardboard 30 to rotate at the excessive speed and leads to torsional spring 33's damage etc..

The technical solution of the present invention is not limited to the scope of the embodiments of the present invention. The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The utility model provides a core setting sand box positioner which characterized in that: the base frame (1) is provided with a lifting support (2) through a vertical driving device, the base frame (1) is further fixedly provided with a track support (3), trolley tracks (4) are arranged on two sides of the track support (3), corresponding to the positions of the trolley tracks (4), two groups of trolley roller pre-positioning devices are arranged on the track support (3) correspondingly, the lifting support (2) is positioned between the base frame (1) and the track support (3), sand box supports (5) are arranged on two sides of the lifting support (2) extending out of the track support (3), the lifting support (2) and the sand box supports (5) on the sand box supports are driven by the vertical driving device to move vertically relative to the base frame (1) so as to separate a sand box from the trolleys, and each sand box support (5) is provided with a sand box longitudinal positioning device and a sand box transverse positioning device, and a vertical positioning device is further mounted on the upper side of the sand box support (5), wherein the vertical positioning device of the sand box can realize the positioning of the longitudinal position of the sand box, the transverse positioning device of the sand box can realize the positioning of the transverse position of the sand box, and the vertical positioning device can realize the positioning of the vertical position of the sand box.

2. The core box positioning device of claim 1, wherein: vertical drive arrangement is including installing lift cylinder (6) on base frame (1), and the piston rod of lift cylinder (6) articulates on lifting support (2), and guide bar (7) of vertical setting are installed to the bottom of lifting support (2), install on base frame (1) with guide bar (7) matched with uide bushing (8), can drive lift support (2) vertical lift between base frame (1) and track support (3) when lift cylinder (6) start.

3. The core box positioning device of claim 1, wherein: trolley gyro wheel prepositioning device installs connecting plate (11) through rubber torsional spring (10) including first mount pad (9) on first mount pad (9), installs on connecting plate (11) and advances wheel (12), rubber torsional spring (10) have the trend that advances of advance wheel (12) rotation on making connecting plate (11) all the time.

4. The core box positioning device of claim 1, wherein: the sand box longitudinal positioning device comprises a second mounting seat (13) installed on a sand box support (5), a positioning oil cylinder (14) horizontally arranged is installed on the second mounting seat (13), a positioning pin (15) is installed on a piston rod of the positioning oil cylinder (14), a positioning guide sleeve (17) matched with the positioning pin (15) is further arranged in the second mounting seat (13), and adjusting jackscrews (18) are installed in the second mounting seats (13) on two sides of the positioning guide sleeve (17).

5. The core box positioning device of claim 4, wherein: the end part of the positioning pin (15) is provided with a conical surface (16), and a plurality of supporting rollers (19) arranged along the length direction are arranged on the sand box bracket (5).

6. The core box positioning device of claim 1, wherein: the sand box transverse positioning device comprises a third mounting seat (20) mounted on a sand box support (5), a crank plate (21) is hinged to the top end of the third mounting seat (20), a clamping oil cylinder (22) is further mounted on the sand box support (5), a piston rod of the clamping oil cylinder (22) is hinged to one end of the crank plate (21), a clamping wheel (23) is mounted at the other end of the crank plate (21), and the piston rod of the clamping oil cylinder (22) can drive the clamping wheels (23) on the sand box supports (5) on two sides to rotate to be close to each other when extending out.

7. The core box positioning device of claim 1, wherein: the vertical positioning device comprises limiting brackets (24) arranged at two ends of the sand box bracket (5), and an upper limiting jackscrew (25) is installed at the top end of each limiting bracket (24).

8. The core box positioning device of claim 1, wherein: corresponding to the four corners of the lifting support (2), lower limiting jackscrews (26) are installed on the base frame (1), reinforcing plates (27) are arranged on the lifting support (2) at the upper end of each lower limiting jackscrew (26), and adjustable pad feet (28) are installed at the four corners of the bottom of the base frame (1).

9. The core box positioning device of claim 1, wherein: and the track support (3) is provided with a limit baffle (29), and the limit baffle (29) is positioned at the two ends of the trolley track (4) in the length direction.

10. A drag flask positioning device as claimed in claim 9, in which: rotatory cardboard (30) are installed in the articulated on the terminal surface of limit baffle (29) inboard, corresponding to the position of rotatory cardboard (30), install swash plate (31) on lifting support (2), be equipped with on rotatory cardboard (30) with swash plate (31) matched with inclined plane (32), install torsional spring (33) in the pivot of rotatory cardboard (30), torsional spring (33) have all the time to make inclined plane (32) on rotatory cardboard (30) rotate to the trend that contacts with swash plate (31), when lifting support (2) and swash plate (31) on it are vertical to rise, can overcome the elasticity of torsional spring (33) and make rotatory cardboard (30) rotate to the upside position department of platform truck track (4).