CN209986592U

CN209986592U - Quick positioning tool for special-shaped shaft

Info

Publication number: CN209986592U
Application number: CN201920860367.9U
Authority: CN
Inventors: 赵夏明; 余烨烽; 张梦丹; 潘宏蕾
Original assignee: Zhejiang Institute of Mechanical and Electrical Engineering Co Ltd
Current assignee: Que's Holding Hangzhou Co ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-01-24
Anticipated expiration: 2029-06-10

Abstract

The utility model relates to the technical field of tool fixtures, and discloses a special-shaped shaft rapid positioning tool, which comprises a bottom plate, wherein a supporting seat is arranged at the left end of the bottom plate, and a stop block is arranged at the right side of the upper end of the supporting seat; a connecting seat is arranged on the right side of the bottom plate, a transversely-distributed cylindrical cavity is arranged inside the upper end of the connecting seat, a through hole is formed in the bottom surface of the cylindrical cavity, a sliding column is arranged in the cylindrical cavity, a push rod is fixed in the center of the sliding column, the left end of the push rod penetrates through the through hole, a pressing block is fixed at the end of the push rod, a V-shaped groove is formed in the left end surface of the pressing block, and a pressure spring is sleeved on the position, located between the sliding; the right side that lies in the connecting seat on the bottom plate is equipped with rotates the seat, rotates the upper end of seat and is equipped with the cam, and the axis of ejector pin passes the rotation center of cam, is equipped with low level face, high level face on the profile face of cam, and the opposite side that lies in high level face on the cam is fixed with the handle. The utility model discloses have convenient to use, centre gripping stable, can improve special-shaped axle machining efficiency's beneficial effect.

Description

Quick positioning tool for special-shaped shaft

Technical Field

The utility model relates to a frock clamp technical field especially relates to a dysmorphism axle fixes a position frock fast.

Background

In machining, non-standard parts are often used, as shown in figure 4 a cross-sectional view of a profiled shaft 21, namely, one side of the normal shaft is processed with a plane, when the shaft is connected with the shaft sleeve, the shaft and the shaft sleeve can slide along the axial direction and can limit the circumferential rotation, as is used in many mechanical constructions, the ends of the profiled shaft are usually connected to other parts, therefore, threaded holes are needed to be processed at two ends of the special-shaped shaft, the special-shaped shaft needs to be positioned during processing, currently, a three-jaw chuck is usually adopted for positioning a shaft workpiece, however, the side surface of the special-shaped shaft is not a complete circumference and has a plane, therefore, three clamping jaws of the three-jaw chuck cannot completely clamp the side surface of the special-shaped shaft, and if the bench vice is adopted for clamping, the cambered surface of the special-shaped shaft is difficult to clamp, the end surface level is difficult to ensure after clamping, and the hole site precision is further influenced. At present, no special tool is used for positioning the special-shaped shaft.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the above-mentioned problem that the dysmorphism axle processing location exists among the prior art, provide a dysmorphism axle fixes a position frock fast, can fix a position the dysmorphism axle fast through this kind of frock to improve the machining efficiency of dysmorphism axle.

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

a special-shaped shaft rapid positioning tool comprises a bottom plate, wherein a supporting seat is arranged at the left end of the bottom plate and fixedly connected with the bottom plate, and a stop block is arranged on the right side of the upper end of the supporting seat; the right side of the bottom plate is provided with a connecting seat, the bottom of the connecting seat is fixedly connected with the bottom plate through a bolt, a transversely distributed cylindrical cavity is arranged inside the upper end of the connecting seat, a through hole is formed in the bottom surface of the cylindrical cavity, a sliding column is arranged in the cylindrical cavity, a push rod is fixed at the center of the sliding column, the left end of the push rod penetrates through the through hole, a pressing block is fixed at the end part of the push rod, a V-shaped groove is formed in the left end surface of the pressing block, and a pressure spring is sleeved on the position, between the sliding column and; the bottom plate is provided with a rotating seat on the right side of the connecting seat, a cam is arranged at the upper end of the rotating seat, the cam is connected with the rotating seat in a rotating mode, the axis of the ejector rod penetrates through the rotating center of the cam, a low-level surface and a high-level surface are arranged on the contour surface of the cam, the low-level surface and the high-level surface are connected in a transition mode through an arc surface, and a handle is fixed on the opposite side of the cam, which is located on the high-level surface. Rotating the handle to enable the right end of the ejector rod to be in contact with the low-level surface, vertically placing the special-shaped shaft into a position between the pressing block and the stop block, enabling the plane on the special-shaped shaft to face the stop block, enabling the circumferential surface to face the V-shaped groove, rotating the handle, enabling the cam to turn to the high-level surface from the low-level surface, enabling the ejector rod to move leftwards to drive the pressing block to press the special-shaped shaft, then drilling the end face of the special-shaped shaft through the drilling machine, after machining, rotating the handle again, taking out the machined special-shaped shaft; the tool is very convenient and stable for positioning the special-shaped shaft, can effectively improve the clamping efficiency of the special-shaped shaft, and further improves the processing efficiency of the special-shaped shaft.

Preferably, the right side of the lower end of the supporting seat extends to form a left supporting block, the left side of the lower end of the connecting seat extends to form a right supporting block, the top surfaces of the left supporting block and the right supporting block are coplanar, and an avoiding groove is formed between the left supporting block and the right supporting block. The left supporting block and the right supporting block support the lower end of the special-shaped shaft, and when the through hole needs to be drilled in the special-shaped shaft, the avoiding groove is used for avoiding the drill bit.

Preferably, the stop block and the pressing block are both made of brass, round chamfers are arranged at the upper edge and the lower edge of the stop block, and round chamfers are also arranged at the edges of the V-shaped grooves on the stop block. The brass texture is softer to set up round chamfer in edge department, prevent that dog, briquetting from producing the indentation on the surface of dysmorphism axle.

Preferably, a limiting long groove is formed in the connecting seat and located on the upper side of the cylindrical cavity, and a limiting pin extending into the limiting long groove is fixed to the side face of the sliding column. The angle of the pressing block can be limited by the limiting long groove and the limiting pin, and the pressing block is prevented from rotating around the ejector rod.

Preferably, a bearing is provided at the right end of the carrier rod, and the circumferential surface of the bearing abuts against the contour surface of the cam.

Preferably, an L-shaped connecting plate is fixed at the bottom of the rotating seat, the side face of the L-shaped connecting plate is fixedly connected with the lower end of the right side of the connecting seat, and the bottom face of the L-shaped connecting plate is fixedly connected with the base. The cam and the rotating seat are connected with the connecting seat through the L-shaped connecting plate to form an assembly, so that the assembly is conveniently connected with the bottom plate, and meanwhile, the positions of the cam and the ejector rod can be kept stable.

Preferably, both sides of the left end of the bottom plate are provided with long slotted holes, and the supporting seat is fixedly connected with the long slotted holes through bolts. Because the profile of the cam is fixed, the displacement of the pressing block is fixed, and when the special-shaped shafts with different sizes need to be positioned, the distance of the supporting seat is adjusted through the long slotted hole so as to meet the clamping and positioning requirements of the special-shaped shafts with different models.

Preferably, the phase difference between the low level surface and the high level surface on the cam is 90 degrees, and a limit column is arranged on the side surface of the cam; when the handle is in a vertical position, the right end of the ejector rod is abutted to the low-level surface, and when the handle rotates to a horizontal position, the right end of the ejector rod is abutted to the high-level surface.

Therefore, the utility model discloses convenient to use, centre gripping are stable, can improve the beneficial effect of special-shaped axle machining efficiency have.

Drawings

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

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic view showing a clamping state of the special-shaped shaft.

Fig. 4 is a schematic cross-sectional view of a profiled shaft.

In the figure: the device comprises a bottom plate 1, a supporting seat 2, a left supporting block 200, a long groove hole 3, a stop block 4, a connecting seat 5, a right supporting block 50, a limit long groove 501, a cylindrical cavity 6, a through hole 7, a sliding column 8, a push rod 9, a pressing block 10, a V-shaped groove 11, a pressure spring 12, an avoiding groove 13, a limit pin 14, a rotating seat 15, a cam 16, a low level surface 160, a high level surface 161, a handle 17, a limit column 18, a bearing 19, an L-shaped connecting plate 20 and a special-shaped shaft 21.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1, 2 and 3, the quick positioning tool for the special-shaped shaft comprises a bottom plate 1, wherein a supporting seat 2 is arranged at the left end of the bottom plate, long slotted holes 3 are formed in two sides of the left end of the bottom plate, and the supporting seat is fixedly connected with the long slotted holes through bolts; the right side of the upper end of the supporting seat is provided with a stop block 4, the right side of the bottom plate is provided with a connecting seat 5, the bottom of the connecting seat is fixedly connected with the bottom plate through a bolt, a cylindrical cavity 6 which is transversely distributed is arranged inside the upper end of the connecting seat, the bottom surface of the cylindrical cavity is provided with a through hole 7, a sliding column 8 is arranged in the cylindrical cavity, the sliding column is in clearance fit with the cylindrical cavity, the center of the sliding column is fixed with a mandril 9, the left end of the mandril passes through the through hole, the end part of the mandril is fixed with a pressing block 10, the left end surface of the pressing block is provided with a V-shaped groove 11, the position of the mandril between the sliding column and the bottom surface of the cylindrical cavity is sleeved with a pressure spring 12, the stop block and the pressing block are both made of brass, the upper edge and the lower edge of the stop, the top surfaces of the left supporting block and the right supporting block are coplanar, an avoiding groove 13 is formed between the left supporting block and the right supporting block, a limiting long groove 501 is arranged on the connecting seat 5 and positioned on the upper side of the cylindrical cavity, and a limiting pin 14 extending into the limiting long groove is fixed on the side surface of the sliding column 8.

A rotating seat 15 is arranged on the bottom plate 1 and positioned on the right side of the connecting seat, a cam 16 is arranged at the upper end of the rotating seat, the cam is rotatably connected with the rotating seat, the axis of the ejector rod penetrates through the rotating center of the cam, a low level surface 160 and a high level surface 161 are arranged on the contour surface of the cam 16, the low level surface and the high level surface are in transition connection through an arc surface, a handle 17 is fixed on the opposite side of the high level surface on the cam, the phase difference between the low level surface and the high level surface on the cam is 90 degrees, a limiting column 18 is arranged on the side surface of the cam, a bearing 19 is arranged at the right end of the ejector rod, and the circumferential surface of; when the handle is in a vertical position, the right end of the ejector rod is abutted with the low-level surface, and when the handle rotates to a horizontal position, the right end of the ejector rod is abutted with the high-level surface; an L-shaped connecting plate 20 is fixed at the bottom of the rotating seat 5, the side surface of the L-shaped connecting plate is fixedly connected with the lower end of the right side of the connecting seat, and the bottom surface of the L-shaped connecting plate is fixedly connected with the base.

With the attached drawings, the principle of the utility model is as follows: as shown in fig. 1 and 2, the handle is in a vertical state, the right end of the ejector rod is in contact with the low-level surface, a special-shaped shaft 21 to be processed is arranged in a position between the stop blocks and the pressing block, the plane on the special-shaped shaft faces the stop blocks, the circumferential surface faces the V-shaped grooves, the handle is rotated to be in a state shown in fig. 3, the right end of the ejector rod is in contact with the high-level surface, the V-shaped grooves on the pressing block press the circumferential surface of the special-shaped shaft at the moment, the plane on the special-shaped shaft is attached to the stop blocks, the special-shaped shaft is completely positioned, and then. After processing, the handle is rotated to the state shown in figure 1, the processed special-shaped shaft is taken out, and the special-shaped shaft to be processed is arranged; the tool is very convenient and stable for positioning the special-shaped shaft, can effectively improve the clamping efficiency of the special-shaped shaft, and further improves the processing efficiency of the special-shaped shaft.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A special-shaped shaft rapid positioning tool comprises a bottom plate and is characterized in that a supporting seat is arranged at the left end of the bottom plate and fixedly connected with the bottom plate, and a stop block is arranged on the right side of the upper end of the supporting seat; the right side of the bottom plate is provided with a connecting seat, the bottom of the connecting seat is fixedly connected with the bottom plate through a bolt, a transversely distributed cylindrical cavity is arranged inside the upper end of the connecting seat, a through hole is formed in the bottom surface of the cylindrical cavity, a sliding column is arranged in the cylindrical cavity, a push rod is fixed at the center of the sliding column, the left end of the push rod penetrates through the through hole, a pressing block is fixed at the end part of the push rod, a V-shaped groove is formed in the left end surface of the pressing block, and a pressure spring is sleeved on the position, between the sliding column and; the bottom plate is provided with a rotating seat on the right side of the connecting seat, a cam is arranged at the upper end of the rotating seat, the cam is connected with the rotating seat in a rotating mode, the axis of the ejector rod penetrates through the rotating center of the cam, a low-level surface and a high-level surface are arranged on the contour surface of the cam, the low-level surface and the high-level surface are connected in a transition mode through an arc surface, and a handle is fixed on the opposite side of the cam, which is located on the high-level surface.

2. The quick positioning tool for the special-shaped shaft according to claim 1, wherein a left support block is formed by extending the right side of the lower end of the support seat, a right support block is formed by extending the left side of the lower end of the support seat, the top surfaces of the left support block and the right support block are coplanar, and an avoiding groove is formed between the left support block and the right support block.

3. The tooling for quickly positioning the special-shaped shaft according to claim 1, wherein the stop block and the pressing block are both made of brass, round chamfers are arranged at the upper edge and the lower edge of the stop block, and round chamfers are also arranged at the edges of the V-shaped groove on the stop block.

4. The quick positioning tool for the special-shaped shaft according to claim 1, 2 or 3, wherein a limiting long groove is formed in the connecting seat and located on the upper side of the cylindrical cavity, and a limiting pin extending into the limiting long groove is fixed to the side face of the sliding column.

5. The quick positioning tool for the special-shaped shaft according to claim 1, wherein a bearing is arranged at the right end of the ejector rod, and the circumferential surface of the bearing is abutted against the contour surface of the cam.

6. The quick positioning tool for the special-shaped shaft according to claim 1, wherein an L-shaped connecting plate is fixed to the bottom of the rotating seat, the side surface of the L-shaped connecting plate is fixedly connected with the lower end of the right side of the connecting seat, and the bottom surface of the L-shaped connecting plate is fixedly connected with the base.

7. The quick positioning tooling for the special-shaped shaft according to the claim 1, 2, 3, 5 or 6, characterized in that both sides of the left end of the bottom plate are provided with long slotted holes, and the supporting seat is fixedly connected with the long slotted holes through bolts.

8. The quick positioning tool for the special-shaped shaft according to claim 1, wherein the phase difference between the low-level surface and the high-level surface on the cam is 90 degrees, and a limiting column is arranged on the side surface of the cam; when the handle is in a vertical position, the right end of the ejector rod is abutted to the low-level surface, and when the handle rotates to a horizontal position, the right end of the ejector rod is abutted to the high-level surface.