CN213052885U

CN213052885U - Self-centering rapid drilling clamp for rocker shaft of speed regulator

Info

Publication number: CN213052885U
Application number: CN202021765331.1U
Authority: CN
Inventors: 李海东; 李响; 庄星
Original assignee: Jiangsu University
Current assignee: Jiangsu University
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-27
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a self-centering fast drilling clamp for a rocker shaft of a speed regulator, which comprises a bottom plate, wherein a base and a cylinder are arranged on the bottom plate; a sliding groove is formed in the base and used for assembling V-shaped iron, a V-shaped groove in the V-shaped iron can be used for radially positioning a processing workpiece placed in the V-shaped iron, the centering process is simple and convenient, and the position of the central point of the processing workpiece is constant; the upper end of the base is provided with a cover plate, the upper end surface of the cover plate is provided with a groove, and the lever pressing plate is arranged in the groove and is hinged with the cover plate; the output end of the air cylinder is connected with a fork-shaped push-pull rod, the upper end of the fork-shaped push-pull rod is fixedly connected with the lever pressing plate through a pin shaft, the air cylinder is opened, the air cylinder upwards pushes the fork-shaped push-pull rod to drive the tail end of the lever pressing plate to upwards move, so that the front end of the lever pressing plate downwards rotates to clamp the machining workpiece, the workpiece is prevented from sliding during machining, the machining process is stable, the quality of finished products is effectively improved, the drilling efficiency is improved, and the drilling tool has the advantages of being accurate in positioning.

Description

Self-centering rapid drilling clamp for rocker shaft of speed regulator

Technical Field

The utility model relates to the field of machining, concretely relates to speed regulator rocker shaft is from centering quick boring grab.

Background

Before machining parts with cylindrical shapes such as shafts and pipes, holes perpendicular to the outer surfaces of the parts are often required to be machined in the cylindrical surfaces, and when drilling, a workpiece is usually directly mounted on a machine tool workbench, and then drilling is carried out by using a drill. The speed regulator rocker shaft also needs to be drilled before machining, the speed regulator rocker shaft rolls easily in the machining process, the drilling positioning accuracy is poor, a large number of defective products and waste products are caused, the machining quality is poor, time and labor are consumed, and the production efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned problem provide a speed regulator rocker shaft is from centering quick boring grab, be provided with the quick centering that V shaped iron is used for realizing processing the work piece to press from both sides tight processing work piece through anchor clamps, avoid the work piece to add the slip man-hour, effectively improve finished product quality, improved drilling efficiency, have fix a position accurate, easy operation is convenient, advantage such as the practicality is strong.

The technical scheme of the utility model is that:

a self-centering rapid drilling clamp for a rocker shaft of a speed regulator comprises a bottom plate, wherein a base and a cylinder are arranged on the bottom plate; a sliding groove is formed in the base and used for assembling V-shaped iron, and a V-shaped groove in the V-shaped iron can be used for radially positioning a machining workpiece placed in the V-shaped iron; the upper end of the base is provided with a cover plate, the upper end surface of the cover plate is provided with a groove, and the lever pressing plate is arranged in the groove and is hinged with the cover plate; the output end of the air cylinder is connected with a fork-shaped push-pull rod, and the upper end of the fork-shaped push-pull rod is fixedly connected with the lever pressing plate through a pin shaft; the fork-shaped push-pull rod drives the lever pressing plate to press the processing workpiece.

In the scheme, the rear end face of the cover plate is in threaded connection with a limit screw, and a nut is screwed on the limit screw; the front end of the bottom plate is provided with a baffle plate, and the baffle plate is in threaded connection with an adjusting screw; the front end of the processing workpiece props against the limiting screw; and screwing the adjusting screw to enable the baffle to be abutted against the rear end of the machined workpiece so as to axially fix the machined workpiece.

In the scheme, the upper end face of the cover plate is provided with the drill bushing, and the lower end of the drill bushing is inserted into the cover plate; a threaded hole is formed in the cover plate, and a positioning screw is screwed into the threaded hole to fix the upper position and the lower position of the drill bushing; the center line of the drill bushing is superposed with the symmetrical center line of the V-shaped iron so as to ensure the radial dimension precision of the processed workpiece.

In the scheme, the lever pressing plate is connected to the positioning hole in the groove through the positioning pin, and the lever pressing plate can rotate around the positioning pin relatively; a waist-shaped groove is formed at the tail end of the lever pressing plate, and a pin shaft is arranged in the waist-shaped groove; clamping grooves are formed in two ends of the pin shaft, and clamping springs are arranged in the clamping grooves.

In the scheme, the base, the cover plate and the bottom plate are in threaded connection and are fixed through the positioning pins.

In the scheme, the processing workpiece is a rocker shaft of the speed regulator; the pressure of the cylinder is adjustable; the V-shaped iron can be replaced according to the size of a machined workpiece.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a promote the processing work piece, make its both ends offset with stop screw and baffle respectively, realize the axial fixity of processing work piece, open the cylinder this moment, the cylinder upwards promotes the Y-shaped push-and-pull rod, drives the terminal rebound of lever clamp plate, and then the lever clamp plate front end rotates downwards, and then presss from both sides tight processing work piece, has avoided the work piece to add the sliding man-hour, whole course of working is stable, effectively improves the finished product quality, has improved drilling efficiency, has the advantages such as location is accurate, easy operation is convenient, the practicality is strong.

2. The V-shaped iron is arranged in the base, the processing workpiece is placed in the V-shaped groove of the V-shaped iron, the radial automatic positioning of the processing workpiece is realized, the centering process is simple and convenient, the position of the central point of the processing workpiece is constant, and the accuracy of the processing positioning is further improved; the model of the V-shaped iron can be changed so as to meet the drilling processing requirements of shaft parts with different diameters; meanwhile, the pressure of the air cylinder is adjusted to be used for clamping the machined workpiece or preventing the machined workpiece from being pressed and deformed by the lever pressing plate.

Drawings

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

Fig. 2 is a partial schematic view of the present invention.

Fig. 3 is a diagram of the lever pressing plate and the fork-shaped push-pull rod assembly according to the present invention.

Fig. 4 is a schematic structural view of the workpiece to be processed according to the present invention.

In the figure:

1-a bottom plate; 2-a cylinder; 3-a base; 4-a baffle plate; 5-type V iron; 6-cover plate; 7-drilling a sleeve; 8-lever pressing plate; 9-forked push-pull rods; 10-processing the workpiece; 11-a set screw; 12-a locating pin; 13-a pin shaft; 14-an adjusting screw; 15-a limit screw; 16-clamp spring.

Detailed Description

The invention will be further described with reference to the drawings and the following examples, but the scope of the invention is not limited thereto.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is conventionally placed when the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element to which the present invention is directed must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and 2, speed regulator rocker axle is from centering quick boring grab, including bottom plate 1, be equipped with base 3 and cylinder 2 on the bottom plate 1, it is concrete, base 3 is adorned in 1 left side of bottom plate, cylinder 2 is adorned in 1 right side of bottom plate. The base 3 is internally provided with a sliding chute used for assembling the V-shaped iron 5, when the processing tool is used, a processing workpiece with a drilled hole is placed in a V-shaped groove of the V-shaped iron 5, the V-shaped groove can automatically radially position the processing workpiece 10, the center point position of the processing workpiece 10 is constant, centering is simple and rapid, and the V-shaped iron 5 can be replaced according to the size of the processing workpiece 10. Specifically, as shown in fig. 4, the processing workpiece 10 is a rocker shaft of a speed regulator. The apron 6 is equipped with to 3 upper ends of base, and base 3,

apron

6 and 1 threaded connection of bottom plate and fix through the locating pin, and is specific, apron 6, four holes are joined in marriage to the same position of base 3 and bottom plate 1 and are bored, wherein are equipped with the internal thread on bottom plate 1, install apron 6 and base 3 on bottom plate 1 through four hexagon socket head cap screws, and apron 6, base 3, two locating holes are joined in marriage to the same position of bottom plate 1 and are bored, fixes the position of apron 6, base 3, bottom plate 1 with two locating pins.

6 rear end faces of apron are equipped with the internal thread hole, 6 rear end face female connection of apron has stop screw 15, stop screw 15 top spin has the nut, the length that stop screw 15 stretched out has been adjusted, stop screw 15 stretches out length can be adjusted according to the actual length of the rocker shaft of treating drilling, the nut of screwing makes it withstand 6 rear end faces of apron to carry out axial length fixed, with the axial dimensions precision in order to guarantee epaxial hole, whole adjustment process is simple and convenient, the practicality is strong. Baffle 4 is equipped with to bottom plate 1 front end, is equipped with the internal thread hole on the baffle 4, and baffle 4 has adjusting screw 14 through female connection. When the processing workpiece 10 is placed, the processing workpiece 10 is pushed forwards until the front end of the processing workpiece 10 abuts against a limiting screw 15 connected to the rear end face of the cover plate 6, and at the moment, an adjusting screw 14 is screwed to enable the baffle plate 4 to abut against the rear end of the processing workpiece 10, so that the axial fixation of the processing workpiece 10 is realized.

The upper end face of the cover plate 6 is provided with a drill bushing 7, the lower end of the drill bushing 7 is inserted into the cover plate 6, the cover plate 6 is provided with a threaded hole, the threaded hole is connected with a positioning screw 11, and the positioning screw 11 is screwed into the threaded hole to fix the upper position and the lower position of the drill bushing 7. The central line of the hole of the drill bushing 7 is superposed with the symmetrical central line of the V-shaped iron 5 to ensure the radial dimension precision of the machined workpiece 10. The drill bushing 7 can be replaced according to the size of the drilled hole. The upper end face of the cover plate 6 is provided with a groove, the lever pressing plate 8 is arranged in the groove and hinged with the cover plate 6, specifically, positioning holes are respectively arranged on two sides of the groove, the groove is connected to the lever pressing plate 8 through a positioning pin 12, the lever pressing plate 8 can rotate around the positioning pin 12 relatively, and a waist-shaped groove is formed in the tail end of the lever pressing plate 8.

The output end of the cylinder 2 is connected to the lower end of a fork-shaped push-pull rod 9, the upper end of the fork-shaped push-pull rod 9 is fixedly connected with a lever pressing plate 8 through a pin shaft 13, specifically, the pin shaft 13 is arranged in a waist-shaped groove, as shown in fig. 3, clamping grooves are formed in two ends of the pin shaft 13, and clamping springs 16 are arranged in the clamping grooves and used for limiting axial movement of the pin shaft 13. When the machined workpiece 10 is axially fixed, the cylinder 2 on the base 1 is opened, the cylinder 2 pushes the fork-shaped push-pull rod 9 upwards, so that the tail end of the lever pressing plate 9 is driven to move upwards, the front end of the lever pressing plate 9 downwards presses the machined workpiece 10, and then the machining process of drilling can be carried out by taking the central point as a reference. The pressure of the cylinder 2 is adjustable, so that the workpiece to be processed is prevented from being pressed and deformed, or parts are prevented from loosening in the processing process. Whole course of working clamping is effectual, avoids adding man-hour the processing work piece and takes place to roll, and drilling location is easily controlled, and the centering is quick, effectively improves finished product quality, has improved drilling efficiency, has advantages such as location accuracy, easy operation are convenient, the practicality is strong.

The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. A self-centering rapid drilling clamp for a rocker shaft of a speed regulator is characterized by comprising a bottom plate (1), wherein a base (3) and a cylinder (2) are arranged on the bottom plate (1); a sliding groove is formed in the base (3) and used for assembling the V-shaped iron (5), and a V-shaped groove in the V-shaped iron (5) can be used for radially positioning a machining workpiece (10) placed in the V-shaped iron; a cover plate (6) is arranged at the upper end of the base (3), a groove is formed in the upper end face of the cover plate (6), and a lever pressing plate (8) is arranged in the groove and hinged with the cover plate (6); the output end of the air cylinder (2) is connected with a fork-shaped push-pull rod (9), and the upper end of the fork-shaped push-pull rod (9) is fixedly connected with a lever pressing plate (8) through a pin shaft (13); the fork-shaped push-pull rod (9) drives the lever pressing plate (8) to press the processing workpiece (10).

2. The self-centering rapid drilling clamp for the speed regulator rocker shaft according to claim 1, wherein a limit screw (15) is in threaded connection with the rear end face of the cover plate (6), and a nut is screwed on the limit screw (15); the front end of the bottom plate (1) is provided with a baffle (4), and the baffle (4) is in threaded connection with an adjusting screw (14); the front end of the processing workpiece (10) props against the limiting screw (15); and screwing the adjusting screw (14) to enable the baffle plate (4) to abut against the rear end of the processing workpiece (10) so as to realize the axial fixation of the processing workpiece (10).

3. The self-centering rapid drilling clamp for the speed regulator rocker shaft according to claim 1, wherein a drill bushing (7) is arranged on the upper end face of the cover plate (6), and the lower end of the drill bushing (7) is inserted into the cover plate (6); a threaded hole is formed in the cover plate (6), and a positioning screw (11) is screwed into the threaded hole to fix the upper position and the lower position of the drill bushing (7); the central line of the drill bushing (7) is superposed with the symmetrical central line of the V-shaped iron (5) to ensure the radial dimension precision of the machined workpiece (10).

4. The speed governor rocker shaft self-centering rapid drilling jig of claim 1, characterized in that the lever pressing plate (8) is connected to the positioning hole in the groove through a positioning pin (12), and the lever pressing plate (8) can rotate relatively around the positioning pin (12); a waist-shaped groove is formed at the tail end of the lever pressing plate (8), and a pin shaft (13) is arranged in the waist-shaped groove; clamping grooves are formed in two ends of the pin shaft (13), and clamping springs (16) are installed in the clamping grooves.

5. The speed governor rocker shaft self-centering rapid drilling clamp according to claim 1, characterized in that the base (3) and the cover plate (6) are in threaded connection with the base plate (1) and are fixed by positioning pins.

6. The speed governor rocker shaft self-centering rapid drilling jig of claim 1, characterized in that the machined workpiece (10) is a speed governor rocker shaft; the pressure of the cylinder (2) is adjustable; the V-shaped iron (5) can be replaced according to the size of the machined workpiece (10).