CN219310684U

CN219310684U - Exchange type pneumatic quick clamping motor shaft drilling fixture

Info

Publication number: CN219310684U
Application number: CN202320141161.7U
Authority: CN
Inventors: 谢跃明; 田荣亮; 费广敏; 叶正生
Original assignee: Pinghu Sanfuli Precision Machinery Co ltd
Current assignee: Pinghu Sanfuli Precision Machinery Co ltd
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2023-07-07
Anticipated expiration: 2033-02-07

Abstract

The utility model relates to the technical field of clamps, in particular to an exchangeable pneumatic rapid clamping motor shaft drilling clamp which comprises a bottom plate, wherein at least two first cylinders are arranged on the bottom plate, a pressing block is arranged on each first cylinder, a clamping mechanism is arranged on the bottom plate and used for positioning and fixing a motor shaft, at least two positioning pins are arranged on the bottom plate, positioning holes corresponding to the positioning pins are formed in the clamping mechanism, and the pressing block on each first cylinder extends to the position above the clamping mechanism. According to the exchanged pneumatic rapid clamping motor shaft drilling clamp, rapid detachment and matching between the clamping mechanism and the bottom plate can be realized, and the first cylinder is utilized for positioning, so that when a machine tool processes a motor shaft, an operator can perform blanking and charging on the clamping mechanism outside the machine tool, the efficiency of loading and unloading on the machine tool is improved, and the utilization rate of the machine tool and the drilling efficiency of the motor shaft are improved.

Description

Exchange type pneumatic quick clamping motor shaft drilling fixture

Technical Field

The utility model relates to the technical field of clamps, in particular to an exchangeable pneumatic rapid clamping motor shaft drilling clamp.

Background

In the prior art, the drilling clamps of the small motor shafts are fixed on a machine tool, and operators need to perform blanking and then charging on the machine tool after finishing machining. Because the fixture can clamp a plurality of motor shafts, the time required for blanking and charging is long, the waiting time of the machine tool is long, the utilization rate of the machine tool is low, and the machining efficiency is affected.

Disclosure of Invention

The utility model provides the exchangeable pneumatic rapid clamping motor shaft drilling clamp for solving the technical defects, which can improve the clamping and blanking efficiency of a motor shaft by adopting the exchangeable clamp and pneumatic clamping, thereby improving the utilization rate of a machine tool and the machining efficiency of motor shaft drilling.

The utility model discloses an exchange type pneumatic rapid clamping motor shaft drilling fixture which comprises a bottom plate, wherein the bottom plate is fixed on a machine tool, at least two first air cylinders are arranged on the bottom plate, pressing blocks are arranged on the first air cylinders, the pressing blocks are rotationally connected with telescopic ends of the air cylinders, a clamping mechanism is arranged on the bottom plate and used for positioning and fixing a motor shaft, at least two positioning pins are arranged on the bottom plate, positioning holes corresponding to the positioning pins are formed in the clamping mechanism, and the pressing blocks on the first air cylinders extend to the upper part of the clamping mechanism.

The clamping mechanism comprises a base body, moving strips are arranged on two sides of the base body, the base body is in sliding connection with the moving strips, a plurality of sliding blocks are arranged on the moving strips, the sliding blocks are in butt joint with the side edges of the base body, semicircular clamping holes corresponding to each other are formed in the base body and the sliding blocks, the clamping holes are used for clamping a motor shaft, a second air cylinder is arranged on a bottom plate on the outer side of the moving strips, and the telescopic ends of the second air cylinder face the base body.

The two ends of each sliding block are respectively provided with a semicircular clamping hole, the middle part of each sliding block is horizontally provided with a through hole, a connecting rod is arranged in each through hole in a penetrating mode, one end of each connecting rod is fixedly connected with the corresponding moving strip, a connecting hole is formed in a base body at the other end of each connecting rod, each connecting rod extends to the inside of each connecting hole, a pressure spring is sleeved on each connecting rod in each through hole, and two ends of each pressure spring respectively abut against the base body and the corresponding moving strip.

The caliber of the connecting hole towards one end of the sliding block is reduced to form a step hole, the end part of the connecting rod in the connecting hole outwards extends to form an annular bulge, the diameter of the connecting rod is equal to the inner diameter of the smaller end of the connecting hole, and the outer diameter of the annular bulge is equal to the inner diameter of the larger end of the connecting hole.

According to the exchanged pneumatic rapid clamping motor shaft drilling clamp, rapid detachment and matching between the clamping mechanism and the bottom plate can be realized, and the first cylinder is utilized for positioning, so that when a machine tool processes a motor shaft, an operator can perform blanking and charging on the clamping mechanism outside the machine tool, the efficiency of loading and unloading on the machine tool is improved, and the utilization rate of the machine tool and the drilling efficiency of the motor shaft are improved.

Drawings

Fig. 1 is a partial cross-sectional view of the present utility model.

Description of the embodiments

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Examples

As shown in fig. 1, the utility model discloses an exchangeable pneumatic rapid clamping motor shaft drilling fixture, which comprises a bottom plate 1, wherein the bottom plate 1 is fixed on a machine tool, four first air cylinders 2 are arranged on the bottom plate 1, pressing blocks 3 are arranged on the first air cylinders 2, the pressing blocks 3 are rotationally connected with telescopic ends of the air cylinders, a clamping mechanism is arranged on the bottom plate 1 and used for positioning and fixing a motor shaft, two positioning pins are arranged on the bottom plate 1, positioning holes 13 corresponding to the positioning pins are arranged on the clamping mechanism, and the pressing blocks 3 on the first air cylinders 2 extend to the upper part of the clamping mechanism.

Adopt fixture and bottom plate 1's dismantlement formula cooperation, in actual course of working, a bottom plate 1 can dispose two or more fixture, on the bottom plate 1 of carrying the value lathe after one fixture is equipped with the motor shaft, utilize the cooperation between locating pin and the locating hole 13 and adopt first cylinder 2 to push down fixedly, realize quick location between the two, made things convenient for fixture's change. Therefore, when the machine tool automatically drills the motor shaft on the clamping mechanism on the bottom plate 1, an operator can perform blanking on the motor shaft processed on the clamping mechanism on the table top, and after blanking, the clamping mechanism can be subjected to feeding of the motor shaft to be processed, so that the feeding and discharging efficiency is improved. After the motor shaft is machined, only the clamping mechanisms are required to be directly exchanged, so that the time for loading and unloading on the machine tool is shortened, the utilization rate of the machine tool is improved, and the machining efficiency of the motor shaft is improved. Wherein briquetting 3 can rotate, can rotate briquetting 3 outside fixture when exchanging fixture, realize that both break away from, make things convenient for fixture to pull down.

The clamping mechanism comprises a base body 4, moving strips 5 are arranged on two sides of the base body 4, the base body 4 is slidably connected with the moving strips 5, a plurality of sliding blocks 6 are arranged on the moving strips 5, the sliding blocks 6 are in butt joint with the side edges of the base body 4, semicircular clamping holes 7 corresponding to each other are formed in the base body 4 and the sliding blocks 6, the clamping holes 7 are used for clamping a motor shaft, a second air cylinder 12 is arranged on a bottom plate 1 outside the moving strips 5, and the telescopic ends of the second air cylinders 12 face the base body 4. The movable strip 5 and the base body 4 can be connected in a sliding rail or guide rod mode, when a gap exists between the sliding block 6 and the base body 4, the diameter of the clamping hole 7 is increased, and the motor shaft can be clamped and discharged. After the motor shaft is clamped, the clamping mechanism is matched with the bottom plate 1, and then the sliding block 6 can be matched with the base body 4 through the pressurization of the second air cylinder 12, so that the motor shaft is fixed inside the clamping hole 7, and the rapid clamping of the motor shaft is realized.

The two ends of each sliding block 6 are respectively provided with a semicircular clamping hole 7, the middle part of each sliding block 6 is horizontally provided with a through hole, a connecting rod 8 is arranged in the through hole in a penetrating manner, one end of each connecting rod 8 is fixedly connected with the corresponding movable strip 5, a connecting hole 10 is arranged in the base body 4 at the corresponding position of the other end of each connecting rod 8, each connecting rod 8 extends to the inside of the corresponding connecting hole 10, a pressure spring 9 is sleeved on each connecting rod 8 in the through hole, and two ends of each pressure spring 9 respectively prop against the base body 4 and the corresponding movable strip 5.

The caliber of the connecting hole 10 towards one end of the sliding block 6 is reduced to form a step hole, the end part of the connecting rod 8 in the connecting hole 10 extends outwards to form an annular bulge 11, the diameter of the connecting rod 8 is equal to the inner diameter of the smaller end of the connecting hole 10, and the outer diameter of the annular bulge 11 is equal to the inner diameter of the larger end of the connecting hole 10.

The distance between the sliding block 6 and the base body 4 can be effectively limited by matching the step holes with the annular protrusions 11 at the end parts of the connecting rods, so that the clamping holes 7 and the motor shaft are contacted after the motor shaft is clamped, and the motor shaft is positioned. Under the action of the second air cylinder 12, the moving bar 5 overcomes the elastic force of the pressure spring 9, and tightly fits the sliding block 6 with the base body 4, so that the motor shaft in the clamping hole 7 is fixed. The connecting rod 8 is arranged in the middle of each sliding block 6, and the clamping holes 7 are arranged at the two ends, so that the left end and the right end can be balanced, and the fixation of each motor shaft is better, more firm and stable.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be in interaction relationship with two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The present utility model is not limited to the preferred embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. The utility model provides a pneumatic quick clamping motor shaft boring grab of exchange, includes the bottom plate, the bottom plate is fixed in on the lathe, characterized by: the motor is characterized in that at least two first cylinders are arranged on the bottom plate, a pressing block is arranged on the first cylinders, the pressing block is rotationally connected with the telescopic ends of the cylinders, a clamping mechanism is arranged on the bottom plate and used for positioning and fixing a motor shaft, at least two positioning pins are arranged on the bottom plate, positioning holes corresponding to the positioning pins are formed in the clamping mechanism, and the pressing block on the first cylinders extends to the upper portion of the clamping mechanism.

2. The interchangeable pneumatic quick clamp motor shaft boring grab of claim 1, wherein: the clamping mechanism comprises a base body, moving strips are arranged on two sides of the base body, the base body is in sliding connection with the moving strips, a plurality of sliding blocks are arranged on the moving strips, the sliding blocks are in butt joint with the side edges of the base body, semicircular clamping holes corresponding to each other are formed in the base body and the sliding blocks, the clamping holes are used for clamping a motor shaft, a second air cylinder is arranged on a bottom plate on the outer side of the moving strips, and the telescopic ends of the second air cylinder face the base body.

3. An exchangeable pneumatic rapid clamping motor shaft drilling jig as set forth in claim 2, wherein: the two ends of each sliding block are respectively provided with a semicircular clamping hole, the middle part of each sliding block is horizontally provided with a through hole, a connecting rod is arranged in each through hole in a penetrating mode, one end of each connecting rod is fixedly connected with the corresponding moving strip, a connecting hole is formed in a base body at the other end of each connecting rod, each connecting rod extends to the inside of each connecting hole, a pressure spring is sleeved on each connecting rod in each through hole, and two ends of each pressure spring respectively abut against the base body and the corresponding moving strip.

4. A switched pneumatic quick clamp motor shaft boring grab as claimed in claim 3, wherein: the caliber of the connecting hole towards one end of the sliding block is reduced to form a step hole, the end part of the connecting rod in the connecting hole outwards extends to form an annular bulge, the diameter of the connecting rod is equal to the inner diameter of the smaller end of the connecting hole, and the outer diameter of the annular bulge is equal to the inner diameter of the larger end of the connecting hole.