CN209831334U - Cylindrical grinding expandable mandrel jig - Google Patents

Abstract

The utility model provides a formula mandrel tool that can rise of peripheral milling belongs to anchor clamps structure field. The utility model discloses a worktable plane board sets up the work piece fixing base on the worktable plane board, wherein, be equipped with first stiff end and second stiff end on the work piece fixing base, be equipped with the formula mandrel that can expand between first stiff end and the second stiff end, treat that the work piece of processing cup joints and fixes on the formula mandrel that can expand. The utility model has the advantages that: the labor intensity of operators is reduced, and the efficiency of clamping workpieces is improved.

Description

Cylindrical grinding expandable mandrel jig

Technical Field

The utility model relates to a guide pin bushing anchor clamps structure especially relates to an excircle grinds formula mandrel tool that can rise.

Background

The guide sleeve is used as a standard part of the die, and along with the increase of the business volume of a company, the clamping efficiency of the guide sleeve in the process of processing an excircle is urgently needed to be improved. When the outer circle of the traditional guide sleeve is ground, the guide sleeve with a machined inner hole is clamped on a mandrel with slight taper and central holes at two ends by hand, then the guide sleeve is taken to an outer circle grinding machine, two centers on the left and right of the machine are used for propping against two ends of the mandrel in a clamping mode, and the guide sleeve needs to be knocked out manually after being machined.

The defects of the existing clamping technology for grinding the excircle of the guide sleeve are as follows: because the workpiece is knocked into the mandrel by manual labor and then knocked out after being processed, the operator is easy to fatigue, has high labor intensity, is easy to damage the workpiece, and has lower efficiency for batch production.

SUMMERY OF THE UTILITY MODEL

For solving the problem among the prior art, the utility model provides a can realize quick clamping work piece and effectively carry out the cylindrical grinder formula mandrel tool that can expand that fixes a position to the work piece.

The utility model discloses a worktable plane board sets up the work piece fixing base on the worktable plane board, wherein, be equipped with first stiff end and second stiff end on the work piece fixing base, be equipped with the formula mandrel that can expand between first stiff end and the second stiff end, treat that the work piece of processing cup joints and fixes on the formula mandrel that can expand.

The utility model discloses make further improvement, but still be equipped with the packing ring on the expanding mandrel.

The utility model discloses make further improvement, first stiff end and second stiff end are top structure, the both ends of formula mandrel that can expand are equipped with the centre bore, top structure can push up into the centre bore.

The utility model discloses make further improvement, first stiff end or second stiff end are equipped with the elastomer in work piece fixing base installation department, work as when first stiff end or second stiff end are pressed to the installation department direction, the elastomer produces deformation, and first stiff end and second stiff end loosen the tight expandable mandrel that presss from both sides, and when the elastomer resumes deformation, first stiff end and second stiff end press from both sides tight expandable mandrel.

The utility model discloses make further improvement, the work piece fixing base is including setting up the first top headstock and setting up the top tailstock of second, interval between headstock and the tailstock is in can adjust on the table panel.

The utility model discloses make further improvement, the elastomer sets up in the tailstock, still be equipped with on the tailstock and adjust the elastic tailstock handle of elastomer.

The utility model discloses make further improvement, but cylindrical grinder expandable mandrel tool still includes actuating mechanism, and sets up the rolling disc at first stiff end or second stiff end, the rolling disc by the actuating mechanism drive and drive the expandable mandrel is rotatory.

The utility model discloses make further improvement, the rolling disc with first stiff end sets up for the center pin, still be equipped with the driving lever on the rolling disc, the tip of driving lever is equipped with fastening screw, fastening screw can lock but the formula mandrel that rises makes but the formula mandrel rotates along with the rolling disc.

The utility model discloses make further improvement, actuating mechanism is the motor, still be equipped with control on the work piece fixing base the operating button of motor application.

Compared with the prior art, the beneficial effects of the utility model are that: the operation is easy and convenient, the labor intensity of operators is greatly reduced, the use effect is good, and the clamping efficiency is high.

Drawings

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

fig. 2 is an enlarged view of a portion of fig. 1A.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

As shown in fig. 1 and 2, the utility model discloses a table panel 6 sets up the guide rail on table panel 6, sets up the work piece fixing base on the guide rail, be equipped with first stiff end and second stiff end on the work piece fixing base, be equipped with expandable mandrel 14 between first stiff end and the second stiff end, treat that the guide pin bushing work piece 13 of processing cup joints and fixes on expandable mandrel 14.

Preferably, the first fixing end and the second fixing end of the present embodiment are both tip structures, which are respectively a first tip 11 and a second tip 15, the expandable mandrel 4 is provided with a plurality of uniformly distributed grooves, and both ends of the expandable mandrel are provided with center holes, and the tip structures can be pushed into the center holes, so that the installation and positioning are facilitated. The workpiece fixing seat of the embodiment is arranged separately, and comprises a spindle seat 4 provided with a first centre 11 and a tailstock 5 provided with a second centre 15, and the distance between the spindle seat 4 and the tailstock 5 can be adjusted on a guide rail of the worktable panel 6.

In order to adapt to guide sleeve workpieces with different lengths, the expandable mandrel 14 of the embodiment is also provided with a gasket 12. The embodiment can clamp guide sleeve workpieces with different lengths and outer diameters by replacing washers with different thicknesses on the expandable mandrel and the corresponding expandable mandrel.

In this embodiment, a spring is provided at the mounting position of the second center 15 of the tailstock 5, and when the second center 15 is pressed toward the mounting position, the spring is deformed, the first center 11 and the second center 15 release the clamped expandable mandrel 14, and when the spring is deformed again, the first center 11 and the second center 15 clamp the expandable mandrel 14. The tailstock 5 is also provided with the tailstock handle 7 with the elasticity of the spring, and the clamping tension between the first centre 11 and the second centre 15 is adjusted by adjusting the elasticity of the spring in the tailstock 5 through the tailstock handle 7, so that the structure is simple, and the clamping is quick and reliable.

As an embodiment of the utility model, this example cylindrical grinder expandable mandrel tool still includes headstock motor 1 and the control of setting on spindle drum 1 the operating button 3 of headstock motor 1 motion has still installed protection casing 2 in the headstock motor 1 outside, still is equipped with the rolling disc 8 that uses first top 11 as the center pin on spindle drum 1, rolling disc 8 by headstock motor 1 drive and drive expandable mandrel 14 is rotatory.

Preferably, a shift lever 9 is further disposed on the rotating disc 8, a fastening screw 10 is disposed at an end of the shift lever 9, and the fastening screw 10 can lock the expandable spindle 14, so that the expandable spindle 14 rotates with the rotating disc 8.

The utility model discloses a guide pin bushing (work piece) direct cover is on the mandrel that can rise who sets up many grooves of evenly distributed and both ends and be equipped with the centre bore, under the top spring force effect of first top and tailstock second, open mandrel that can rise rises to open the mode that presss from both sides tight guide pin bushing hole and reaches the purpose that presss from both sides tight guide pin bushing. After the machining is finished, the guide sleeve workpiece can be easily taken down by loosening the ejector piece. The fixture is structurally two completely different clamping modes compared with the prior art, the fixture clamping mode changes the traditional design idea that workpieces are clamped by manually knocking the workpieces tightly, and has the advantages of easily loading and unloading the workpieces, high clamping efficiency, reduction of the labor intensity of operators and great improvement of the clamping efficiency.

The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.

Claims (9)

1. The utility model provides an excircle grinds formula mandrel tool that can rise which characterized in that: including the workstation panel, set up the work piece fixing base on the workstation panel, wherein, be equipped with first stiff end and second stiff end on the work piece fixing base, be equipped with expandable mandrel between first stiff end and the second stiff end, treat that the work piece of processing cup joints and fixes on the expandable mandrel.

2. The cylindrical grinding expandable mandrel jig of claim 1, wherein: and a gasket is also arranged on the expandable mandrel.

3. The cylindrical grinding expandable mandrel jig of claim 2, wherein: the first fixing end and the second fixing end are of tip structures, central holes are formed in two ends of the expandable mandrel, and the tip structures can be jacked into the central holes.

4. The cylindrical grinding expandable mandrel jig of claim 3, wherein: first stiff end or second stiff end are equipped with the elastomer in work piece fixing base installation department, work as first stiff end or second stiff end when pressing to installation department direction, the elastomer produces deformation, and the tight expandable mandrel of clamp is loosened to first stiff end and second stiff end, and when the elastomer resumes deformation, the tight expandable mandrel of clamp is pressed from both sides to first stiff end and second stiff end.

5. The cylindrical grinding expandable mandrel jig of claim 4, wherein: the workpiece fixing seat comprises a spindle seat provided with a first tip and a tailstock provided with a second tip, and the distance between the spindle seat and the tailstock can be adjusted on the workbench panel.

6. The cylindrical grinding expandable mandrel jig of claim 5, wherein: the elastic body is arranged in the tailstock, and the tailstock handle for adjusting the elasticity of the elastic body is further arranged on the tailstock.

7. The cylindrical grinding expandable mandrel jig according to any one of claims 1 to 6, characterized in that: the cylindrical grinding expandable mandrel fixture further comprises a driving mechanism and a rotating disc arranged at the first fixed end or the second fixed end, and the rotating disc is driven by the driving mechanism and drives the expandable mandrel to rotate.

8. The cylindrical grinding expandable mandrel jig of claim 7, wherein: the rotating disc is arranged by taking the first fixed end as a central shaft, the rotating disc is further provided with a deflector rod, the end part of the deflector rod is provided with a fastening screw, and the fastening screw can lock the expandable mandrel so that the expandable mandrel rotates along with the rotating disc.

9. The cylindrical grinding expandable mandrel jig of claim 7, wherein: the driving mechanism is a motor, and an operating button for controlling the motor to operate is further arranged on the workpiece fixing seat.