CN215699964U

CN215699964U - Positioning fixture for processing pin shaft

Info

Publication number: CN215699964U
Application number: CN202122351468.3U
Authority: CN
Inventors: 封力军; 李明; 李杨; 崔晓娜
Original assignee: Zhengzhou Mingfeng Mechanical Equipment Manufacturing Co ltd
Current assignee: Zhengzhou Mingfeng Mechanical Equipment Manufacturing Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-01
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a positioning fixture for processing a pin shaft, which comprises a base and a clamping cylinder, wherein the middle part of the top end of the base is rotatably connected with a connecting shaft through a bearing, the clamping cylinder is fixedly arranged at the top end of the connecting shaft, one side of the top end of the base is provided with a driving assembly, the clamping cylinder is internally provided with a clamping assembly, the clamping assembly comprises three threaded seats, three connecting screw rods, three sliding grooves and three clamping plates, and the three threaded seats are respectively and fixedly arranged on the surface of the clamping cylinder: the connecting screw rod is conveniently driven to rotate through the arranged rotating wheel, the ejector rod at the end part of the connecting screw rod can be driven to extrude the clamping plate under the matching of the threaded seat and the connecting screw rod, the clamping plate is driven to move under the sliding matching of the sliding block and the sliding groove to clamp and limit the end part of the pin shaft, and the clamping plate can be reset under the condition that the connecting screw rod is not limited through the arranged reset spring, so that the pin shaft can be conveniently taken out; the rotation of the clamping barrel is facilitated through the arranged driving assembly.

Description

Positioning fixture for processing pin shaft

Technical Field

The utility model relates to a positioning clamp, in particular to a positioning clamp for pin shaft machining, and belongs to the technical field of pin shaft machining.

Background

The pin shaft is a standard fastener, can be fixedly connected statically, can also move relative to a connected piece, and is mainly used at the hinged part of two parts to form hinged connection; the position of a pin shaft needs to be limited when the pin shaft is machined, in the prior art, the pin shaft is generally placed on a horizontal table, then a worker limits the pin shaft with one hand and performs drilling, polishing and other work with the other hand, the pin shaft is limited by the hand, the pin shaft is unsafe and has a poor limiting effect, the pin shaft can roll on the horizontal table easily, and the limitation is inconvenient; and when processing, often can appear positional deviation, influence the processingquality of round pin axle.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a positioning clamp for processing a pin shaft, which aims to solve the problem that the position is easy to deviate during processing in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a positioning fixture for round pin axle processing, includes the base and presss from both sides tight section of thick bamboo, the middle part on base top is rotated through the bearing and is connected with the connecting axle, it is in to press from both sides tight section of thick bamboo fixed setting the top of connecting axle, one side on base top is equipped with drive assembly, the inside of pressing from both sides tight section of thick bamboo is equipped with clamping components, clamping components includes three screw thread seat, three connecting screw, three spout and three splint, it is three the screw thread seat is fixed the setting respectively the surface of pressing from both sides tight section of thick bamboo, it is three the screw thread seat respectively with three connecting screw threaded connection, it is three the inner wall at pressing from both sides tight section of thick bamboo is seted up to the spout, it is three the equal sliding connection in inside of spout has the slider, it is three one side of slider is all fixed limiting plate, it is three splint are fixed the one side that sets up at three limiting plate respectively.

As a preferable technical scheme of the utility model, the driving assembly comprises a driving motor, a driving gear and a transmission gear, the driving motor is fixedly arranged on one side of the base through a fixing frame, the driving gear is fixedly arranged on a transmission shaft of the driving motor, the transmission gear is fixedly arranged at the bottom of the connecting shaft, and the transmission gear is meshed with the driving gear.

As a preferred technical scheme, rotating wheels are fixedly arranged at one ends of the three connecting screw rods, ejector rods are fixedly arranged at the other ends of the three connecting screw rods, the end parts of the ejector rods are arc-shaped, and limiting grooves are formed in the middle parts of the three clamping plates.

As a preferable technical scheme of the utility model, the surfaces of the three sliding blocks are all fixedly provided with return springs, and one ends of the three return springs are all fixedly connected with the inner wall of the clamping cylinder.

As a preferred technical scheme of the utility model, four corners of the base are respectively fixedly provided with a fixed seat, and the middle parts of the three fixed seats are respectively provided with a fixed hole.

As a preferred technical scheme of the present invention, a switch panel is fixedly disposed on one side of the fixing frame, a driving motor switch is disposed on a surface of the switch panel, and the driving motor is electrically connected to a power supply through the driving motor switch.

Compared with the prior art, the utility model has the beneficial effects that: according to the positioning fixture for processing the pin shaft, the connecting screw rod is conveniently driven to rotate through the arranged rotating wheel, the ejector rod at the end part of the connecting screw rod can be driven to extrude the clamping plate under the matching of the threaded seat and the connecting screw rod, the clamping plate is driven to move under the sliding matching of the sliding block and the sliding groove to clamp and limit the end part of the pin shaft, and the clamping plate can be reset under the condition that the connecting screw rod is not limited through the arranged reset spring, so that the pin shaft can be conveniently taken out; the driving motor can drive the driving gear to rotate, and the driving gear can drive the connecting shaft to rotate under the meshing fit of the driving gear and the transmission gear, so that the clamping cylinder rotates, and different positions of the pin shaft can be conveniently processed.

Drawings

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

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a partially enlarged schematic view of the clamping assembly of the present invention.

In the figure: 1. a base; 101. a fixed seat; 102. a fixing hole; 2. a bearing; 3. a connecting shaft; 4. a clamping cylinder; 5. a drive assembly; 501. a fixed mount; 502. a drive motor; 503. a drive gear; 504. a transmission gear; 6. a clamping assembly; 601. a threaded seat; 602. connecting a screw rod; 603. a top rod; 604. a rotating wheel; 605. a chute; 606. a slider; 607. a return spring; 608. a limiting plate; 609. a splint; 6010. a limiting groove; 7. a switch panel.

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.

Referring to fig. 1-3, the present invention provides a positioning fixture for processing a pin shaft, comprising a base 1 and a clamping cylinder 4, wherein the middle of the top end of the base 1 is rotatably connected with a connecting shaft 3 through a bearing 2, the clamping cylinder 4 is fixedly arranged at the top end of the connecting shaft 3, one side of the top end of the base 1 is provided with a driving assembly 5, the clamping cylinder 4 is internally provided with a clamping assembly 6, the clamping assembly 6 comprises three threaded seats 601 and three connecting screws 602, three spout 605 and three splint 609, three screw thread seat 601 are fixed respectively and are set up on the surface of pressing from both sides tight section of thick bamboo 4, three screw thread seat 601 respectively with three connecting screw 602 threaded connection, three spout 605 is seted up at the inner wall of pressing from both sides tight section of thick bamboo 4, the equal sliding connection in inside of three spout 605 has slider 606, one side of three slider 606 all is fixed and is equipped with limiting plate 608, three splint 609 are fixed respectively and are set up in one side of three limiting plate 608.

Preferably, the driving assembly 5 comprises a driving motor 502, a driving gear 503 and a transmission gear 504, the driving motor 502 is fixedly arranged on one side of the base 1 through a fixing frame 501, the driving gear 503 is fixedly arranged on a transmission shaft of the driving motor 502, the transmission gear 504 is fixedly arranged at the bottom of the connecting shaft 3, the transmission gear 504 is meshed and connected with the driving gear 503, the driving motor 502 drives the driving gear 503 to rotate, the connecting shaft 3 can be driven to rotate under the meshing and matching of the driving gear 503 and the transmission gear 504, so that the clamping cylinder 4 can rotate, and different positions of the pin shaft can be processed; one end of each of the three connecting screw rods 602 is fixedly provided with a rotating wheel 604, the rotating wheels 604 are convenient to drive the connecting screw rods 602 to rotate, the other end of each of the three connecting screw rods 602 is fixedly provided with a top rod 603, the end parts of the three top rods 603 are all arranged in an arc shape, the middle parts of the three clamping plates 609 are all provided with a limiting groove 6010, and the friction between the connecting screw rods 602 and the clamping plates 609 can be reduced through the arranged top rods 603 and limiting grooves 6010, so that the connecting screw rods 602 can rotate conveniently; the surfaces of the three sliding blocks 606 are all fixedly provided with the return springs 607, one ends of the three return springs 607 are all fixedly connected with the inner wall of the clamping cylinder 4, the three clamping plates 609 can be reset under the action of the return springs 607, and the machined pin shaft can be taken out conveniently by workers; fixing seats 101 are fixedly arranged at four corners of the base 1, fixing holes 102 are formed in the middle of the three fixing seats 101, and the base 1 is conveniently and fixedly arranged on the workbench through the four fixing seats 101 and the fixing holes 102; one side of mount 501 is fixed and is equipped with flush mounting plate of switch 7, and flush mounting plate of switch 7's surface is equipped with the driving motor switch, and driving motor 502 passes through the driving motor switch and power electric connection, is convenient for control driving motor 502's work through the driving motor switch that sets up.

When the positioning fixture is used in detail, the positioning fixture for processing the pin shaft is characterized in that firstly, a base 1 is fixedly arranged on a workbench through four fixing seats 101 and fixing holes 102, the end part of the pin shaft to be processed is arranged in a clamping cylinder 4, three connecting screws 602 are rotated through three rotating wheels 604, a mandril 603 at the end part of each connecting screw 602 is driven to extrude a limiting groove 6010 of a clamping plate 609 under the threaded matching of the connecting screws 602 and a threaded seat 601, the three clamping plates 609 move inwards to clamp and fix the end part of the pin shaft, the movement of the clamping plate 609 plays a guiding role under the sliding matching of a sliding block 606 and a sliding groove 605, a worker processes the pin shaft, and controls a driving motor 502 to work through a driving motor switch, the driving motor 502 drives a driving gear 503 to rotate, and can drive a connecting shaft 3 to rotate under the meshing matching of the driving gear 503 and a transmission gear 504, therefore, the clamping cylinder 4 rotates to process different positions of the pin shaft, after the processing is finished, the three connecting screw rods 602 rotate reversely, the three clamping plates 609 reset under the action of the reset spring 607, and a worker can take out the processed pin shaft.

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. A positioning fixture for processing a pin shaft comprises a base (1) and a clamping cylinder (4), and is characterized in that the middle of the top end of the base (1) is rotatably connected with a connecting shaft (3) through a bearing (2), the clamping cylinder (4) is fixedly arranged at the top end of the connecting shaft (3), one side of the top end of the base (1) is provided with a driving assembly (5), a clamping assembly (6) is arranged inside the clamping cylinder (4), the clamping assembly (6) comprises three threaded seats (601), three connecting screw rods (602), three sliding chutes (605) and three clamping plates (609), the three threaded seats (601) are respectively and fixedly arranged on the surface of the clamping cylinder (4), the three threaded seats (601) are respectively in threaded connection with the three connecting screw rods (602), and the three sliding chutes (605) are arranged on the inner wall of the clamping cylinder (4), all sliding connection has slider (606) in the inside of three spout (605), and three one side of slider (606) all is fixed and is equipped with limiting plate (608), and three splint (609) are fixed respectively and are set up in one side of three limiting plate (608).

2. The positioning fixture for processing the pin shaft according to claim 1, characterized in that: drive assembly (5) include driving motor (502), drive gear (503) and drive gear (504), driving motor (502) pass through fixed setting of mount (501) and are in one side of base (1), the fixed drive gear (503) that is equipped with of transmission shaft of driving motor (502), drive gear (504) are fixed to be set up the bottom of connecting axle (3), drive gear (504) are connected with drive gear (503) meshing.

3. The positioning fixture for processing the pin shaft according to claim 1, characterized in that: the one end of three connecting screw rod (602) all is fixed and is equipped with runner (604), and is three the other end of connecting screw rod (602) all is fixed and is equipped with ejector pin (603), and is three the tip of ejector pin (603) all sets up to the arc, and is three spacing groove (6010) have all been seted up at the middle part of splint (609).

4. The positioning fixture for processing the pin shaft according to claim 1, characterized in that: the surface of the three sliding blocks (606) is fixedly provided with a return spring (607), and one end of the return spring (607) is fixedly connected with the inner wall of the clamping cylinder (4).

5. The positioning fixture for processing the pin shaft according to claim 1, characterized in that: four corners of base (1) are all fixed and are equipped with fixing base (101), and three fixed orifices (102) have all been seted up at the middle part of fixing base (101).

6. The positioning fixture for processing the pin shaft according to claim 2, characterized in that: one side of the fixing frame (501) is fixedly provided with a switch panel (7), the surface of the switch panel (7) is provided with a driving motor switch, and the driving motor (502) is electrically connected with a power supply through the driving motor switch.