CN219189830U

CN219189830U - Port grinding accurate positioning fixture

Info

Publication number: CN219189830U
Application number: CN202320130411.7U
Authority: CN
Inventors: 龙军
Original assignee: Taixi Precision Parts Suzhou Co ltd
Current assignee: Taixi Precision Parts Suzhou Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2023-06-16
Anticipated expiration: 2033-01-17

Abstract

The utility model belongs to the field of positioning fixtures, in particular to a precise port grinding positioning fixture, which comprises a base, wherein a clamping seat is fixedly arranged at the top of the base, a placing groove is formed in the top of the clamping seat, positioning seats are fixedly arranged on the inner walls of the bottom of the placing groove, moving grooves are formed in the inner walls of the two sides of the placing groove, a moving seat is slidably arranged in the moving groove, one end of the moving seat extends into the placing groove and is provided with an arc-shaped clamping plate, a driving hole is formed in the inner wall of the top of the moving groove, a driving seat fixedly connected with the moving seat is slidably arranged in the driving hole, a plurality of rectangular grooves are formed in the outer side of the positioning seat, and a plurality of rectangular seats are slidably arranged in the rectangular grooves. The clamping device is reasonable in design, the outer sides of the workpieces can be clamped and fixed through the two arc clamping plates, and the inner parts of the workpieces can be pressed and fixed through the plurality of rectangular seats, so that the workpieces can be positioned and clamped conveniently.

Description

Port grinding accurate positioning fixture

Technical Field

The utility model relates to the technical field of positioning fixtures, in particular to a port grinding accurate positioning fixture.

Background

The grinding processing belongs to finish processing in mechanical processing, has less processing amount and high precision, is widely applied in the mechanical manufacturing industry, and the carbon tool steel and carburized and quenched steel parts subjected to heat treatment and quenching often have a large number of cracks which are arranged regularly and are ground on the surface which is basically vertical to the grinding direction during grinding, so that the appearance of the parts is influenced, and more importantly, the quality of the parts is also directly influenced.

At present, when the port of an automobile part is ground, a workpiece needs to be positioned and fixed, but the existing positioning clamp can only be fixed from the outer side, and the port grinding is easy to deviate, so that the processing quality is affected, and therefore, the port grinding accurate positioning clamp is provided for solving the problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a precise positioning fixture for port grinding.

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

the utility model provides an accurate positioning fixture of port grinding, includes the base, the top fixed mounting of base has the cassette, the standing groove has been seted up at the top of cassette, fixed mounting has the positioning seat on the bottom inner wall of standing groove, all seted up on the both sides inner wall of standing groove and removed the groove, and movable seat has been slided to movable seat in the moving groove, and movable seat's one end extends to the standing groove and installs arc splint, has seted up the drive hole on the top inner wall of movable groove, and slidable mounting has the drive seat with movable seat fixed connection in the drive hole, a plurality of rectangular channels have been seted up in the outside of positioning seat, and slidable mounting has a plurality of rectangular seats in the rectangular channel, and the spread groove has been seted up to the bottom of positioning seat, is equipped with pushing mechanism in the spread groove, and pushing mechanism is connected with the rectangular seat.

Preferably, the two inner walls of one side of the driving holes far away from each other are rotatably provided with threaded rods, the driving seat is sleeved on the threaded rods in a threaded manner, one side of the clamping seat is fixedly provided with a stepping motor, and an output shaft of the stepping motor is fixedly connected with the threaded rods.

Preferably, the threaded rod is provided with two external threads with opposite screwing directions, the driving seat is provided with an internal threaded hole, and the external threads are meshed with the corresponding internal threads.

Preferably, the pushing mechanism comprises a lifting plate and a hinge rod, wherein the lifting plate is slidably installed in the connecting groove, the bottom end of the hinge rod is hinged to the lifting plate, and the top end of the hinge rod is hinged to the rectangular base.

Preferably, the base is provided with a connecting hole, a transverse plate is fixedly arranged in the connecting hole, a rotating seat is rotatably arranged on the transverse plate, a transmission mechanism is arranged between the rotating seat and the threaded rod, and a driving mechanism is arranged between the rotating seat and the lifting plate.

Preferably, the driving bevel gear is fixedly mounted on the threaded rod, the driven bevel gear is fixedly mounted on the bottom end of the rotating seat, and the driving bevel gear is meshed with the corresponding driven bevel gear.

Preferably, the driving mechanism comprises a thread groove and a driving screw rod, the thread groove is formed in the top end of the rotating seat, and the driving screw rod fixedly connected with the lifting plate is installed in the thread groove in a threaded manner.

Preferably, the limiting grooves are formed in the inner walls of the two sides of the connecting groove, the limiting seats are fixedly arranged on the two sides of the lifting plate, and the limiting seats are in sliding connection with the corresponding limiting grooves.

The utility model has the beneficial effects that:

1. when a workpiece to be processed is placed in the placing groove, the workpiece is sleeved on the positioning seat, the stepping motor is started, the stepping motor can drive the threaded rod to rotate, the rotation of the threaded rod can drive the two driving seats to move in the direction of approaching each other, the driving seats can drive the moving seat and the arc clamping plates to move, and the purpose of compressing and fixing the outer side of the workpiece can be achieved through the two arc clamping plates;

2. under the cooperation of driving bevel gear and driven bevel gear, the threaded rod can drive the roating seat and rotate, and the roating seat can drive screw upward movement through the thread groove, and drive screw can drive the lifter plate upward movement, and the lifter plate drives the rectangular seat through articulated rod and removes, and a plurality of rectangular seats can realize the inside to the work piece and extrude fixed purpose.

Drawings

Fig. 1 is a schematic perspective view of a precise positioning fixture for port grinding according to the present utility model;

fig. 2 is a schematic diagram of a front view structure of a precise positioning fixture for port grinding according to the present utility model;

fig. 3 is a schematic structural diagram of a portion a of a precise positioning fixture for port grinding according to the present utility model;

fig. 4 is a schematic diagram of a part B of a precise positioning fixture for port grinding according to the present utility model.

In the figure: 1. a base; 2. a clamping seat; 3. a placement groove; 4. a positioning seat; 5. a moving groove; 6. a movable seat; 7. an arc clamping plate; 8. a drive hole; 9. a driving seat; 10. a threaded rod; 11. a stepping motor; 12. rectangular grooves; 13. a rectangular seat; 14. a connecting groove; 15. a lifting plate; 16. a hinge rod; 17. a connection hole; 18. a cross plate; 19. a rotating seat; 20. a transmission mechanism; 21. a thread groove; 22. the screw is driven.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present, the term "disposed" indicating a manner of presence and may be connected, mounted, fixedly connected, operatively connected, or the like. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, a precise positioning fixture for port grinding comprises a base 1, a clamping seat 2 is fixedly arranged at the top of the base 1, a placing groove 3 is formed in the top of the clamping seat 2, a positioning seat 4 is fixedly arranged on the inner wall of the bottom of the placing groove 3, moving grooves 5 are formed in the inner walls of two sides of the placing groove 3, a moving seat 6 is slidably arranged in the moving groove 5, one end of the moving seat 6 extends into the placing groove 3 and is provided with an arc clamping plate 7, a driving hole 8 is formed in the inner wall of the top of the moving groove 5, a driving seat 9 fixedly connected with the moving seat 6 is slidably arranged in the driving hole 8, a plurality of rectangular grooves 12 are formed in the outer side of the positioning seat 4, a plurality of rectangular seats 13 are slidably arranged in the rectangular grooves 12, connecting grooves 14 are formed in the bottom of the positioning seat 4, a pushing mechanism is arranged in the connecting grooves 14 and is connected with the rectangular seats 13, the number of the rectangular seats 13 is three to five, and three to five rectangular seats 13 are arranged in an annular equidistant mode.

In this embodiment, the threaded rod 10 is rotatably installed on the inner wall of one side of two drive holes 8 that keep away from each other, the drive seat 9 thread bush is established on threaded rod 10, one side fixed mounting of cassette 2 has step motor 11, and step motor 11's output shaft and threaded rod 10 fixed connection, be equipped with two external screw threads that revolve opposite direction on the threaded rod 10, the internal thread hole has been seted up on the drive seat 9, and the external screw thread meshes with corresponding internal screw thread, because the outside of threaded rod 10 is equipped with two external screw threads that revolve opposite direction, the rotation of threaded rod 10 can drive two drive seats 9 and remove, and the direction of movement of two drive seats 9 is opposite.

In this embodiment, pushing mechanism includes lifter plate 15 and articulated rod 16, lifter plate 15 slidable mounting is in spread groove 14, the bottom of articulated rod 16 articulates on lifter plate 15, the top of articulated rod 16 articulates on rectangular seat 13, more specifically, the spacing groove has all been seted up on the both sides inner wall of spread groove 14, the both sides of lifter plate 15 are all fixed mounting has spacing seat, and spacing seat and corresponding spacing groove sliding connection, through setting up spacing seat and spacing groove, can lead lifter plate 15 for lifter plate 15 carries out stable removal.

In this embodiment, the base 1 is provided with a connecting hole 17, a transverse plate 18 is fixedly installed in the connecting hole 17, a rotating seat 19 is rotatably installed on the transverse plate 18, a transmission mechanism 20 is arranged between the rotating seat 19 and the threaded rod 10, a driving mechanism is arranged between the rotating seat 19 and the lifting plate 15, the transmission mechanism 20 comprises a driving bevel gear and a driven bevel gear, the driving bevel gear is fixedly installed on the threaded rod 10, the driven bevel gear is fixedly installed on the bottom end of the rotating seat 19, the driving bevel gear is meshed with the corresponding driven bevel gear, the driving mechanism comprises a thread groove 21 and a driving screw 22, the thread groove 21 is formed in the top end of the rotating seat 19, the driving screw 22 fixedly connected with the lifting plate 15 is installed in the thread groove 21 in a threaded manner, and the driving screw 22 can be driven to move by the rotation of the rotating seat 19 through the thread groove 21.

According to the utility model, when a workpiece to be machined is placed in the placing groove 3, the workpiece is sleeved on the positioning seat 4, the stepping motor 11 is started, the stepping motor 11 can drive the threaded rod 10 to rotate, the threaded rod 10 can drive the two driving seats 9 to move in the directions close to each other, the driving seats 9 can drive the moving seat 6 and the arc clamping plates 7 to move, the purpose of compressing and fixing the outer side of the workpiece can be achieved through the two arc clamping plates 7, the threaded rod 10 can drive the rotating seat 19 to rotate under the cooperation of the driving bevel gear and the driven bevel gear, the rotating seat 19 can drive the driving screw 22 to move upwards through the threaded groove 21, the driving screw 22 can drive the lifting plate 15 to move upwards, the lifting plate 15 can drive the rectangular seats 13 to move through the hinging rod 16, and the purposes of compressing and fixing the inner side of the workpiece can be achieved through the plurality of rectangular seats 13.

The accurate port grinding positioning fixture provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, which are intended to be merely illustrative of the methods of the present utility model and their core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.

Claims

1. The port grinding accurate positioning fixture is characterized by comprising a base (1), wherein a clamping seat (2) is fixedly arranged at the top of the base (1), a placing groove (3) is formed in the top of the clamping seat (2), and a positioning seat (4) is fixedly arranged on the inner wall of the bottom of the placing groove (3);

the movable seat (6) is slidably mounted in the movable groove (5), one end of the movable seat (6) extends into the movable groove (3) and is provided with an arc-shaped clamping plate (7), a driving hole (8) is formed in the inner wall of the top of the movable groove (5), and a driving seat (9) fixedly connected with the movable seat (6) is slidably mounted in the driving hole (8);

a plurality of rectangular grooves (12) are formed in the outer side of the positioning seat (4), a plurality of rectangular seats (13) are slidably mounted in the rectangular grooves (12), connecting grooves (14) are formed in the bottom of the positioning seat (4), pushing mechanisms are arranged in the connecting grooves (14), and the pushing mechanisms are connected with the rectangular seats (13).

2. The port grinding accurate positioning clamp according to claim 1, wherein a threaded rod (10) is rotatably mounted on the inner wall of one side of each of the two driving holes (8), which is far away from each other, the driving seat (9) is sleeved on the threaded rod (10) in a threaded manner, a stepping motor (11) is fixedly mounted on one side of the clamping seat (2), and an output shaft of the stepping motor (11) is fixedly connected with the threaded rod (10).

3. The precise positioning fixture for port grinding according to claim 2, wherein the threaded rod (10) is provided with two external threads with opposite screwing directions, the driving seat (9) is provided with an internal threaded hole, and the external threads are meshed with the corresponding internal threads.

4. The port grinding accurate positioning clamp according to claim 1, wherein the pushing mechanism comprises a lifting plate (15) and a hinging rod (16), the lifting plate (15) is slidably mounted in the connecting groove (14), the bottom end of the hinging rod (16) is hinged on the lifting plate (15), and the top end of the hinging rod (16) is hinged on the rectangular seat (13).

5. The port grinding accurate positioning fixture according to claim 1, wherein the base (1) is provided with a connecting hole (17), a transverse plate (18) is fixedly installed in the connecting hole (17), a rotating seat (19) is rotatably installed on the transverse plate (18), a transmission mechanism (20) is arranged between the rotating seat (19) and the threaded rod (10), and a driving mechanism is arranged between the rotating seat (19) and the lifting plate (15).

6. The precise positioning fixture for port grinding according to claim 5, wherein the transmission mechanism (20) comprises a drive bevel gear and a driven bevel gear, the drive bevel gear is fixedly mounted on the threaded rod (10), the driven bevel gear is fixedly mounted on the bottom end of the rotary seat (19), and the drive bevel gear is meshed with the corresponding driven bevel gear.

7. The port grinding accurate positioning clamp according to claim 5, wherein the driving mechanism comprises a thread groove (21) and a driving screw (22), the thread groove (21) is formed in the top end of the rotating seat (19), and the driving screw (22) fixedly connected with the lifting plate (15) is installed in the thread groove (21) in a threaded mode.

8. The port grinding accurate positioning fixture according to claim 4, wherein limiting grooves are formed in inner walls of two sides of the connecting groove (14), limiting seats are fixedly mounted on two sides of the lifting plate (15), and the limiting seats are in sliding connection with the corresponding limiting grooves.