CN111774910A - A jig for machining and testing a shaft hole of a casing - Google Patents

Abstract

The utility model provides a machine shell shaft hole processing and anchor clamps for detection, the on-line screen storage device comprises a base, be equipped with three holder on the base and be used for supporting a supporting bench nail of casing, the holder includes the clamp plate, a spring, positioning screw and supporting screw, positioning screw's bottom is connected in the base, the middle part that the clamp plate was upwards passed on the top, positioning screw's top and lower part are connected with a lock nut who is used for compressing tightly the clamp plate and is used for fixed position screw respectively, spring suit is on positioning screw and on it, both ends lean on respectively in the clamp plate and the lock nut who connects the positioning screw lower part down, through each lock nut of rotating, can make the front end of clamp plate compress tightly the casing down on a supporting bench nail that corresponds, lock nut leans on and fixed connection's first nut and second nut together from top to bottom including. Above-mentioned technical scheme simple structure through setting up lock nut and spring, can improve the convenience of anchor clamps dismouting to a great extent.

Description

A jig for machining and testing a shaft hole of a casing

technical field

The invention relates to the technical field of tooling and fixtures, in particular to a fixture for machining and detecting a shaft hole of a casing.

Background technique

When the existing processing fixture presses the workpiece through the pressing member, the pressure plate is often locked with a conventional nut, and an external tool such as a wrench must be used to disassemble and assemble it. If the fixture is directly used as a detection fixture , because the locking degree does not need to be as high as the processing fixture, you can consider screwing the nut directly by hand to reduce the use of external tools, but during manual operation, directly hold the nut with your fingers to screw it, because the torque is too short, it is very Difficult to tighten nuts. If a quick disassembly and assembly device that is convenient for manual operation can be provided in the clamp, the pressing member can also be disassembled and assembled without using an external tool, which makes disassembly and assembly of the clamp more convenient.

SUMMARY OF THE INVENTION

In view of the above problems, the purpose of the present invention is to provide a jig for machining and testing a shaft hole of a casing, which is used to solve the problem of inconvenient disassembly and assembly of the jig.

In order to achieve the above purpose of the invention, the present invention adopts the following solutions: a jig for machining and detecting a shaft hole of a casing, including a base, and a jig for processing and detecting a shaft hole of a casing, including a base, characterized in that: on the base There is a positioning pin for inserting into the positioning hole at the bottom of the casing and a limit stop pin for abutting against the left end of the casing. The base is provided with three supporting table nails for supporting the casing. Each side is provided with a clamping piece, the clamping piece includes a pressure plate, a spring, a positioning screw and a support screw, the bottom end of the support screw is abutted on the base, and the top end is connected to the end of the pressure plate, and the positioning screw The bottom end is connected to the base, the top end passes through the middle of the pressing plate upward, the top and bottom of the positioning screw are respectively connected with a locking nut for pressing the pressing plate and for fixing the positioning screw, and the spring is sleeved on the positioning screw And its upper and lower ends are respectively against the pressure plate and the locking nut at the lower part of the connecting positioning screw. On the top, the locking nut includes a first nut and a second nut that are abutted up and down and fixedly connected together, and a first lever is respectively connected on both sides of the second nut.

Preferably, the locking nut is an integral molding structure.

Preferably, the first nut, the second nut and the first lever are connected to each other by welding.

Further, the base is provided with a movable stop pin for abutting against the right end of the casing, the movable stop pin is connected to the base through a locking bolt, and the locking bolt includes a head and a rod portion with an external thread. , a second lever is respectively provided on both sides of the bottom end of the head.

Further, the side portion of the positioning pin is provided with a support step for supporting the casing.

Further, a lathe connecting plate is fixedly connected to the bottom of the base.

The invention has a simple structure. By setting the lock nut, the lock nut can be manually rotated to lock and loosen the pressure plate, which can not only reduce the use of external tools to a large extent, but also rotate the lock by turning the first lever. Tightening the nut can make the disassembly and assembly of the fixture more convenient; by setting the spring on the positioning screw, the pressure plate can be supported by the spring even after it is loosened, so as to prevent the pressure plate from being directly tilted on the casing. After deflecting to a certain angle, the operator can quickly remove the casing. At this time, because the pressure plate can be kept at its own height under the action of the spring without freeing up hands to hold the pressure plate, then when the casing is installed again, directly rotate the pressure plate. To the casing, the pressure plate can be easily locked and the casing is pressed, which further improves the convenience of disassembly and assembly of the fixture.

Description of drawings

Fig. 1 is the front view of clamp among the present invention;

Fig. 2 is the top view of clamp among the present invention;

FIG. 3 is a schematic structural diagram of the locking nut in the present invention.

In the picture:

1——Locating pin 2——Lock nut 2a——First lever

2b——the second nut 2c——the first nut 3——the pressure plate

4——Support screw 5——Limit stop pin 6——Locating screw

7——Support table nail 8——Case 9——Moveable stop pin

10 - base 11 - lathe connecting plate 12 - locking bolt

13 - Spring.

Detailed ways

In order to make the objectives, technical solutions and advantages of the invention more clear, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and not to limit the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation shown in the drawings Or the positional relationship is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

As shown in FIGS. 1 and 2 , a jig for machining and testing a shaft hole of a casing includes a base 10 . The base 10 is provided with a positioning pin 1 for inserting into the positioning hole at the bottom of the casing 8 and a jig for abutting against the left side of the casing 8 . The limit stop pin 5 at the side end can position the casing 8 through the joint action of the positioning pin 1 and the limit stop pin 5 . Since the positioning pin 1 is vertically inserted into the positioning hole at the bottom of the casing 8, it only plays a positioning role, and the positioning hole at the bottom of the casing 8 is relatively suspended, so the side of the positioning pin 1 is also provided with a support for supporting the casing 8 steps to avoid the phenomenon of sinking of the suspended part of the casing 8 . The base 10 is provided with three supporting table nails 7 for supporting the casing 8, and one side of each supporting table nail 7 is provided with a clamping piece, and the supporting table nail 7 cooperates with the clamping piece to clamp the machine. Shell 8. The clamping piece includes a pressure plate 3, a spring 13, a positioning screw 6 and a support screw 4. The bottom end of the support screw 4 abuts on the base 10, and the top end is connected to the end of the pressure plate 3, which can support the pressure plate 3 and cooperate with the pressure plate 3 to press Chassis 8. The bottom end of the positioning screw 6 is connected to the base 10 , and the top end passes upward through the middle of the pressing plate 3 , so that the pressing plate 3 can rotate around the positioning screw 6 . The top and bottom of the positioning screw 6 are respectively connected with a locking nut 2 for pressing the pressing plate 3 and for fixing the positioning screw 6. By rotating each locking nut 2, the front end of the pressing plate 3 can push the casing 8 to the position. Press down on the corresponding support table nails 7. The spring 13 is sleeved on the positioning screw 6 and its upper and lower ends are respectively abutted against the pressure plate 3 and the locking nut 2 connecting the lower part of the positioning screw 6. After the locking nut 2 is loosened, the pressure plate 3 is supported by the supporting screw 4, which can Avoid the phenomenon that the pressure plate 3 is tilted toward the casing 8 during the disassembly process. The locking nut 2 includes a first nut 2c and a second nut 2b which are abutted up and down and fixedly connected together. A first lever 2a is connected on both sides of the second nut 2b respectively, and the locking nut 2 is an integral molding structure. As another optional structure, the first nut 2c, the second nut 2b and the first lever 2a in the locking nut 2 are connected to each other by welding. During the disassembly and assembly process of the clamp, since the first lever 2a can provide a longer torque, the locking nut 2 can be locked or loosened by directly rotating the first lever 2a by hand to complete the positioning screw 6 The disassembly and assembly of the pressing plate 3 reduces the use of external tools such as wrenches and makes the disassembly and assembly of the clamp more convenient. When the fixture is used for processing, since the locking degree is higher, the locking nut 2 can be locked by rotating the first lever 2a by hand, and then using a wrench or other tools to rotate the first nut 2c to lock the locking nut 2 by hand. Continue to tighten the lock nut 2. Among them, since the locking nut 2 has been locked by rotating the first lever 2a first, when the first nut 2c is continuously rotated with a wrench and other tools, the locking nut 2 can be screwed without too much screwing. to the degree of locking required for processing. During the dismantling process of the clamp, after loosening the lock nut 2 on the pressure plate 3, the pressure plate 3 can be supported by the spring 13 to prevent the pressure plate 3 from being directly tilted on the casing 8. After deflecting to a certain angle, the operator can quickly remove the casing 8. At this time, since the pressure plate 3 can be kept at its own height under the action of the spring 13 without having to free up his hand to hold the pressure plate 3, when the casing 8 is installed again , and directly rotate the pressing plate 3 to the casing 8, the pressing plate 3 can be easily locked and the casing 8 can be pressed, which further improves the convenience of disassembly and assembly of the clamp.

In addition, the base 10 is also provided with a movable stop pin 9 for abutting against the right end of the casing 8 , and the movable stop pin 9 is connected to the base 10 through a locking bolt 12 . The movable leaning pin can cooperate with the limit stop pin 5 abutting against the left end of the casing 8 by abutting against the right end of the casing 8 , so as to fix the casing 8 . The locking bolt 12 includes a head and a rod with an external thread. A second lever is respectively provided on both sides of the bottom end of the head. During the disassembly and assembly process, the locking movement can be achieved by simply rotating the second lever. When the clamp is used for processing, the upper end of the head of the locking bolt 12 can be screwed with a wrench and other tools to continue locking, which can not only greatly reduce the use of external tools, but also The convenience of disassembling the clamp can be improved. The bottom of the base 10 is fixedly connected with a lathe connecting plate 11, so that the fixture can be easily installed on the lathe.

To sum up, the structure of the present invention is simple. By setting the locking nut 2, the locking nut 2 can be directly manually rotated to lock and loosen the pressing plate 3, which can not only reduce the use of external tools to a large extent, but also reduce the use of external tools to a great extent. Moving the first lever 2a to rotate the locking nut 2 can make the disassembly and assembly of the fixture more convenient; by arranging the spring 13 on the positioning screw 6, the pressure plate 3 can also be supported by the spring 13 after loosening, so as to avoid the pressure plate 3 It is directly tilted on the casing 8, and the operator can quickly remove the casing 8 after slightly shifting the pressure plate 3 to deflect it to a certain angle. Under the action, the pressure plate 3 maintains its own height, then when the casing 8 is installed again, the pressure plate 3 is directly rotated to the casing 8, and the pressure plate 3 can be easily locked and the casing 8 is pressed, which further improves the fixture. Ease of disassembly.

The above is only the preferred implementation of the present invention, and is not intended to limit the present invention in any form. Although the present invention has been disclosed above for the preferred embodiments, it is not intended to limit the product form and style of the present invention. Those skilled in the art can make some changes or modifications to equivalent examples of equivalent changes by using the technical content disclosed above within the scope of the technical solution of the present invention, but any content that does not depart from the technical solution of the present invention is still It belongs to the patent scope of the technical solution of the present invention.

Claims (6)

1. A jig for machining and testing a shaft hole of a casing, comprising a base (10), characterized in that: the base (10) is provided with a positioning pin (1) for inserting into a positioning hole at the bottom of the casing (8) and A limit stop pin (5) for abutting against the left end of the casing (8), the base (10) is provided with three supporting table nails (7) for supporting the casing (8), each supporting table One side of the nail (7) is provided with a clamping member, and the clamping member includes a pressure plate (3), a spring (13), a positioning screw (6) and a supporting screw (4). The supporting screw (4) The bottom end of the positioning screw (6) is connected to the base (10), and the top end is connected to the end of the pressure plate (3). The top and bottom of the positioning screw (6) are respectively connected with a locking nut (2) for pressing the pressure plate (3) and for fixing the positioning screw (6). The spring (13) is sleeved on the positioning screw ( 6) The upper and lower ends of the upper and lower ends respectively abut against the pressure plate (3) and the locking nut (2) connecting the lower part of the positioning screw (6). By rotating each locking nut (2), the pressure plate can be made The front end of (3) presses the casing (8) down on the corresponding support table nails (7). A first lever (2a) is connected with the second nut (2b) on both sides of the second nut (2b). 2 . The jig for machining and testing the shaft hole of the casing according to claim 1 , wherein the locking nut ( 2 ) is an integrally formed structure. 3 . 3 . The jig for machining and testing the shaft hole of the casing according to claim 1 , wherein the first nut ( 2c ), the second nut ( 2 b ) and the first lever ( 2 a ) are welded to each other. 4 . connect. 4. The jig for machining and testing the shaft hole of the casing according to claim 2 or 3, wherein the base (10) is provided with a movable stop pin (9) for abutting against the right end of the casing (8). ), the movable stop pin (9) is connected to the base (10) through a locking bolt (12), the locking bolt (12) includes a head and a rod part with an external thread, the bottom end of the head is A second lever is provided on both sides respectively. 5 . The jig for machining and detecting the shaft hole of the casing according to claim 4 , wherein the side portion of the positioning pin ( 1 ) is provided with a support step for supporting the casing ( 8 ). 6 . 6 . The jig for machining and testing the shaft hole of the casing according to claim 5 , wherein a lathe connecting plate ( 11 ) is fixedly connected to the bottom of the base ( 19 ). 7 .

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