CN112139731A

CN112139731A - Profiling positioning device

Info

Publication number: CN112139731A
Application number: CN202010952371.5A
Authority: CN
Inventors: 李亚
Original assignee: Wuhu Shunwei Intelligent Technology Co ltd
Current assignee: Wuhu Shunwei Intelligent Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2020-12-29
Anticipated expiration: 2040-09-11
Also published as: CN112139731B

Abstract

The invention discloses a profiling positioning device, which relates to the field of processing auxiliary equipment and comprises a machine table and a motor, wherein the motor is fixedly connected to the bottom of the machine table, a stop block is fixedly connected to the middle of the machine table, 2 positioning plates are symmetrically arranged on the machine table relative to the stop block, the positioning plates are driven by the motor and are in sliding connection with the machine table, and 2 positioning mechanisms are arranged on the positioning plates. The device carries out the synthetic one step of location and two steps of butt joint originally simultaneously, has reduced the process flow, has shortened processing cycle, utilizes positioning mechanism to replace the locating pin for the part can automatic positioning, and easy dismounting, and the location of device and butt joint adopt a motor as the drive original paper, have reduced the use cost of device.

Description

Profiling positioning device

Technical Field

The invention relates to the field of processing auxiliary equipment, in particular to a profiling positioning device.

Background

With the rapid development of technology, parts are manufactured in more and more ways, and for parts which are not suitable for being integrally formed, two identical parts need to be welded into one part, such as the part shown in fig. 2.

Need carry out accurate location to the part earlier in the welding, then let two parts press close to, later just can weld, it is comparatively troublesome that this kind of preparation flow before welding is still because two parts butt joint are uneven sometimes, lead to the crooked condition to appear in the welding back part, influence the yields.

For some parts that are difficult to locate, fabrication holes are typically left in order to facilitate location. The positioning pin is used in a matched mode with the positioning pin in positioning, the diameter of the positioning pin is fixed, the smaller the radial gap between the positioning pin and the process hole is, the more accurate the positioning is, the assembly and disassembly are quite inconvenient, the larger the radial gap between the positioning pin and the process hole is, the more convenient the assembly and disassembly are, but the larger the positioning error is relatively, and especially when two parts are required to be subjected to butt welding through the process hole, the error can be further enlarged.

Disclosure of Invention

The present invention is directed to a profiling positioning device to solve the above mentioned problems of the background art.

A profiling positioning device comprises a machine table and a motor, wherein the motor is fixedly connected to the bottom of the machine table, a stop block is fixedly connected to the middle of the machine table, 2 positioning plates are symmetrically arranged on the machine table relative to the stop block, the positioning plates are driven by the motor and are in sliding connection with the machine table, and 2 positioning mechanisms are mounted on the positioning plates;

the positioning mechanism comprises a fixing plate and a positioning piece, the fixing plate is installed on the positioning plate, a sliding sleeve is fixed on the fixing plate, a sliding column is connected in the sliding sleeve in a sliding mode, a hinge sleeve is fixedly connected to the sliding column and located in front of the sliding sleeve, 4 hinge portions are arranged on the hinge sleeve at equal intervals, 2 first connecting rods are hinged to the hinge portions, the first connecting rods are hinged to one ends of the positioning piece, the other ends of the positioning piece are connected with second connecting rods in a sliding mode, the second connecting rods are hinged to the sliding sleeve, the first connecting rods on the same positioning piece are hinged to the connecting rods in an X-shaped mode, reset pieces are fixedly connected to the back of the fixing plate, the rear ends of the sliding column penetrate through the reset pieces, a blocking ring is arranged on the sliding column, and a reset spring is sleeved on the sliding column.

Preferably, the stop block is connected with 2 sliding shafts in a sliding mode, one end of each sliding shaft is fixedly connected with an L-shaped block, the other end of each sliding shaft is fixedly connected with a nut, a pressing wheel is rotatably connected between the two L-shaped blocks on the same side, and a positioning spring is sleeved on the sliding shaft between each L-shaped block and the stop block.

Preferably, the machine table is provided with a guide rail, the positioning plate is fixedly connected with a sliding block, and the sliding block is connected with the guide rail in a sliding manner.

Preferably, an output shaft of the motor penetrates through the machine table to be connected with a gear, a front side rack and a rear side rack are respectively meshed with the front side and the rear side of the gear, the front side rack is fixedly connected to the bottom of the positioning plate on the right side, and the rear side rack is fixedly connected to the bottom of the positioning plate on the left side.

Preferably, the both sides of guide rail all are equipped with the jacking cylinder, fixedly connected with backup pad on the output shaft of jacking cylinder, the backup pad passes through slide bar and board sliding connection, jacking cylinder fixed connection is in the bottom of board.

Preferably, the positioning plate is provided with a T-shaped sliding groove, and the fixing plate is locked with the T-shaped sliding groove through a bolt.

Preferably, the front end of the sliding column is in threaded connection with a contact block, and the front end of the contact block is made of rubber.

The invention has the advantages that:

the device carries out the synthetic one step of location and two steps of butt joint originally simultaneously, has reduced the process flow, has shortened processing cycle, utilizes positioning mechanism to replace the locating pin for the part can automatic positioning, and easy dismounting, and the location of device and butt joint adopt a motor as the drive original paper, have reduced the use cost of device.

Utilize motor drive to drive two locating plates and be close to each other to this makes two parts of treating welding be close to each other, and the pinch roller contacts the part first for the part hugs closely the fixed plate, later when the traveller on the positioning mechanism contacts with the dog, the one that becomes X-shaped and two contained angles of connecting rod reduce and make the locating piece open to all around from the center, until with the fabrication hole coaxial and prop tight fabrication hole, the part is accomplished the location this moment, and two parts reach suitable welding position.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a similarly constructed machined-in-place part.

Fig. 3 is a top view of the assembled parts.

Fig. 4 is a front view of the present invention.

Fig. 5 is a schematic structural view of a driving part of the present invention.

Fig. 6 is a cross-sectional view of the positioning mechanism.

Fig. 7 is a partial structural schematic view of the positioning mechanism.

Fig. 8 is a schematic structural view of the positioning plate.

In the figure: 1-machine table, 2-motor, 3-positioning plate, 31-T-shaped sliding groove, 32-bolt, 4-stop block, 5-positioning mechanism, 6-guide rail, 7-gear, 8-front side rack, 9-rear side rack, 10 jacking cylinder, 11-supporting plate and 12 parts.

50-a fixed plate, 51-a sliding sleeve, 52-a sliding column, 521-a stop ring, 522 a contact block, 53-a hinging sleeve, 531-a hinging part, 54-a first connecting rod, 55-a positioning sheet, 56-a second connecting rod, 57-a resetting piece, 58-a resetting spring,

41-sliding shaft, 42-L-shaped block, 43-pressing wheel and 44-positioning spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

A profiling positioning device comprises a machine table 1 and a motor 2, wherein the motor 2 is fixedly connected to the bottom of the machine table 1, a stop block 4 is fixedly connected to the middle of the machine table 1, 2 positioning plates 3 are symmetrically arranged on the machine table 1 relative to the stop block 4, the positioning plates 3 are driven by the motor 2 and are in sliding connection with the machine table 1, and 2 positioning mechanisms 5 are mounted on the positioning plates 3;

the positioning mechanism 5 comprises a fixing plate 50 and a positioning sheet 55, the fixing plate 50 is mounted on the positioning plate 3, a sliding sleeve 51 is fixed on the fixing plate 50, a sliding column 52 is connected in the sliding sleeve 51 in a sliding way, the sliding column 52 is fixedly connected with a hinge sleeve 53, the hinge sleeve 53 is positioned in front of the sliding sleeve 51, the hinge sleeve 53 is provided with 4 hinge parts 531 at equal intervals, 2 connecting rods 54 are hinged in the hinge parts 531, the first connecting rod 54 is hinged with one end of a positioning sheet 55, the other end of the positioning sheet 55 is connected with a second connecting rod 56 in a sliding way, the second connecting rod 56 is hinged with the sliding sleeve 51, the first connecting rod 54 on the same positioning plate 55 is hinged with the second connecting rod 56 in an X shape, a reset piece 57 is fixedly connected to the back surface of the fixing plate 50, the rear end of the sliding column 52 passes through the reset piece 57, a baffle ring 521 is arranged on the sliding column 52, and a return spring 58 is sleeved on the sliding column 52 between the baffle ring 521 and the return element 57.

In this embodiment, the stopper 4 is slidably connected with 2 sliding shafts 41, one end of each sliding shaft 41 is fixedly connected with an L-shaped block 42, the other end of each sliding shaft 41 is fixedly connected with a nut, a pressing wheel 43 is rotatably connected between the two L-shaped blocks 42 on the same side, and a positioning spring 44 is sleeved on the sliding shaft 41 between each L-shaped block 42 and the stopper 4. The pressing wheel 43 is used for adhering the part to the fixing plate 50 before the positioning mechanism 5 positions the process hole so as to preliminarily calibrate the position of the part.

In this embodiment, be equipped with guide rail 6 on the board 1, fixedly connected with slider on the locating plate 3, slider and 6 sliding connection of guide rail.

In this embodiment, the output shaft of the motor 2 passes through the machine table 1 and is connected with a gear 7, a front side rack 8 and a rear side rack 9 are respectively meshed with the front side and the rear side of the gear 7, the front side rack 8 is fixedly connected to the bottom of the positioning plate 3 on the right side, and the rear side rack 9 is fixedly connected to the bottom of the positioning plate 3 on the left side. The rack and pinion drive performs simultaneous approaching and separating functions.

In this embodiment, the both sides of guide rail 6 all are equipped with jacking cylinder 10, fixedly connected with backup pad 11 on jacking cylinder 10's the output shaft, backup pad 11 passes through slide bar and board 1 sliding connection, jacking cylinder 10 fixed connection is in the bottom of board 1. The jacking cylinder plays a role in supporting the part when the part is separated from the positioning.

In this embodiment, the positioning plate 3 is provided with a T-shaped sliding slot 31, and the fixing plate 50 is locked with the T-shaped sliding slot 31 by a bolt 32. The fixing plate 50 is locked by the bolts 32, so that the positions of the two positioning mechanisms can be adjusted conveniently to adapt to parts with different hole pitches.

In this embodiment, a contact block 522 is screwed to the front end of the slide column 52, and the front end of the contact block 522 is made of rubber. The contact block 522 is used for buffering protection, and debugging errors are avoided, so that the positioning mechanism is excessively expanded.

The working principle and the process thereof are as follows:

for a better understanding of the working principle of the device, the part to be positioned is embodied as part 12 shown in fig. 2, note: the device is not limited to part 12 but is a part similar to part 12 that has locating holes and requires mating.

When the device is used, the two positioning blocks are separated towards two sides, then the positioning blocks are adjusted to the positions suitable for installing the parts 12, and then the process holes of the parts 12 to be butted are sleeved on the outer sides of the positioning plates 55. Starting motor 2, motor 2 drives gear 7 rotatory, and the rack of gear 7 both sides is close to each other under the effect of gear 7 meshing to make two locating plate 3 that slide on board 1 be close to each other along guide rail 6, when the inner wall of part 12 and pinch roller 43 contact, slide shaft 41 moves backward this moment, and positioning spring 44 is compressed, and pinch roller 43 exerts a power to the inner wall, makes part 12 paste tight fixed plate 50, and two parts 12 continue to be close to, and positioning spring 44 is further compressed. One end of the sliding shaft 41 is limited by a nut, so that the sliding shaft 41 is prevented from sliding out, and the length of the sliding shaft 41 which extends out when not stressed can be adjusted by the nut according to needs.

When the contact block 522 at the front end of the sliding column 52 abuts against the stop block 4, the sliding column 52 is forced to move backwards, the hinge sleeve 53 fixed on the sliding column 52 also moves backwards, so that the included angle between the first X-shaped connecting rod 54 and the second X-shaped connecting rod 56 is reduced, the positioning sheet 55 is opened towards the periphery until contacting and supporting the inner wall of the fabrication hole, when the positioning sheet 55 is opened and supported, the part 12 is automatically centered, the reset spring 58 is in a compressed state due to the limitation of the reset piece 57 and the stop ring 521, the part 12 is completely positioned by the two positioning mechanisms 5 and the pinch roller 43, and the gap between the two parts 12 at the moment is proper in size and correct in position. The jacking cylinder 10 is lifted to a proper height, so that the part 12 is prevented from falling when the positioning plate 3 is removed.

After the positioning is finished, the welding robot finishes welding according to a preset route, after the welding is finished, the motor 2 rotates reversely, so that the two positioning plates 3 are separated from each other, the supporting plate 11 of the jacking cylinder 10 plays a supporting role for the welded part 12, in the process that the two positioning plates 3 are separated from each other, the reset spring 58 releases pressure and has a forward force on the baffle ring 521, so that the sliding column 52 extends forwards and resets, the included angle between the first connecting rod 54 and the second connecting rod 56 is increased, the positioning sheet 55 contracts inwards, a gap is formed between the positioning sheet 55 and a process hole, the process hole and the positioning sheet 55 are not stressed mutually, and the positioning mechanism 5 can be separated from the process hole.

After the positioning mechanism 5 is completely disengaged from the part 12, the part 12 is moved up by a worker or a machine to be taken out. The jacking cylinder 10 is reset to the low position. The positioning mechanism 5 can be adjusted in position by bolts as required.

Based on the above: the device will be originally fixed a position with two synthetic one-step simultaneous executions of step of butt joint, reduced the process flow, shortened processing cycle, utilize positioning mechanism 5 to replace the locating pin for the part can automatic positioning, and easy dismounting, the location of device and butt joint adopt a motor 2 as the drive original paper, have reduced the use cost of device.

The motor 2 is used for driving the two positioning plates 3 to be close to each other, so that the two parts to be welded are close to each other, the pinch roller 43 firstly contacts the parts, the parts are enabled to be tightly attached to the fixing plate 50, then when the sliding column 52 on the positioning mechanism 5 contacts the stop block 4, the included angle between the X-shaped first connecting rod 54 and the second connecting rod 56 is reduced, so that the positioning piece 55 is opened from the center to the periphery until the positioning piece is coaxial with the process hole and tightly supports the process hole, the parts are positioned at the moment, and the two parts reach proper welding positions.

Based on the above: the device carries out the synthetic one step of location and two steps of butt joint originally simultaneously, has reduced the process flow, has shortened processing cycle, utilizes positioning mechanism to replace the locating pin for the part can automatic positioning, and easy dismounting, and the location of device and butt joint adopt a motor as the drive original paper, have reduced the use cost of device.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. A profile modeling positioner which characterized in that: the device comprises a machine table (1) and a motor (2), wherein the motor (2) is fixedly connected to the bottom of the machine table (1), a stop block (4) is fixedly connected to the middle of the machine table (1), 2 positioning plates (3) are symmetrically arranged on the machine table (1) relative to the stop block (4), the positioning plates (3) are driven by the motor (2) and are in sliding connection with the machine table (1), and 2 positioning mechanisms (5) are mounted on the positioning plates (3);

the positioning mechanism (5) comprises a fixing plate (50) and a positioning sheet (55), the fixing plate (50) is installed on the positioning plate (3), a sliding sleeve (51) is fixed on the fixing plate (50), a sliding column (52) is connected in the sliding sleeve (51) in a sliding mode, a hinge sleeve (53) is fixedly connected on the sliding column (52), the hinge sleeve (53) is located in front of the sliding sleeve (51), 4 hinge parts (531) are arranged on the hinge sleeve (53) at equal intervals, 2 first connecting rods (54) are hinged in the hinge parts (531), the first connecting rods (54) are hinged with one end of the positioning sheet (55), the other end of the positioning sheet (55) is connected with a second connecting rod (56) in a sliding mode, the second connecting rods (56) are hinged with the sliding sleeve (51), the first connecting rods (54) on the same positioning sheet (55) are hinged with the second connecting rods (56) in an X shape, and a reset piece (57) is fixedly connected on the back face of the fixing plate (, the rear end of the sliding column (52) penetrates through the reset piece (57), a blocking ring (521) is arranged on the sliding column (52), and a reset spring (58) is sleeved on the sliding column (52) between the blocking ring (521) and the reset piece (57).

2. A profiling positioning device according to claim 1, wherein: the improved structure is characterized in that the stop block (4) is connected with 2 sliding shafts (41) in a sliding mode, one end of each sliding shaft (41) is fixedly connected with an L-shaped block (42), the other end of each sliding shaft is fixedly connected with a nut, a pressing wheel (43) is rotatably connected between the two L-shaped blocks (42) on the same side, and a positioning spring (44) is sleeved on each sliding shaft (41) between each L-shaped block (42) and the stop block (4).

3. A profiling positioning device according to claim 1, wherein: the machine table is characterized in that a guide rail (6) is arranged on the machine table (1), a sliding block is fixedly connected to the positioning plate (3), and the sliding block is connected with the guide rail (6) in a sliding mode.

4. A profiling positioning device according to claim 1, wherein: the output shaft of motor (2) passes board (1) and is connected with gear (7), both sides mesh respectively around gear (7) has front side rack (8) and rear side rack (9), front side rack (8) fixed connection is in the bottom of locating plate (3) on right side, rear side rack (9) fixed connection is in the bottom of left locating plate (3).

5. A profiling locating device according to claim 3, wherein: the two sides of the guide rail (6) are provided with jacking cylinders (10), the output shaft of each jacking cylinder (10) is fixedly connected with a supporting plate (11), each supporting plate (11) is connected with the machine table (1) in a sliding mode through a sliding rod, and the jacking cylinders (10) are fixedly connected to the bottom of the machine table (1).

6. A profiling positioning device according to claim 1, wherein: the positioning plate (3) is provided with a T-shaped sliding groove (31), and the fixing plate (50) is locked with the T-shaped sliding groove (31) through a bolt (32).

7. A profiling positioning device according to claim 1, wherein: the front end of the sliding column (52) is in threaded connection with a contact block (522), and the front end of the contact block (522) is made of rubber.