Double-indexing fixture device of ball tooth drill bit sharpening machine
Technical Field
The invention belongs to an indexing fixture, and particularly relates to a double-indexing fixture device of a button bit sharpening machine.
Background
The fixture of the grinding machine for the ball bit is mainly equipment for clamping the bit when grinding the bit after the ball head is worn, and in the use of the existing fixture, the bit needs to be taken down when the grinding ball head is replaced each time, and the fixture is used for clamping for the second time, and is time-consuming, labor-consuming, low in efficiency and poor in precision.
In view of this, the present invention provides a double indexing fixture device for a button bit sharpening machine.
Disclosure of Invention
Technical problem to be solved
The invention mainly aims to study and design a double-indexing fixture device of a button bit sharpening machine, which solves the problem of frequent clamping when sharpening different bulbs on a bit.
Technical proposal adopted for solving the technical problems
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a double-indexing fixture device of a button bit sharpening machine, which mainly comprises a fixture chassis, a small L plate, an indexing disc, a fixed workpiece head, an angle disc and a large L plate; the method is characterized in that: the large L plate and the clamp chassis are fixed through bolts, and the small L plate is fixed on the large L plate through bolts; the small L plate is provided with an upper hole, a lower hole mandrel and a convex block; the indexing disc is fixedly matched with the fixed workpiece head through a countersunk head hole on the indexing disc by countersunk head screws, and the bottom surface of the indexing disc provided with a V-shaped groove is contacted with a small L-shaped plate provided with a convex block to determine the rotation angle of the fixed workpiece head; the fixed workpiece head is provided with an outer shaft, the outer shaft is provided with a step hole, the mandrel is in sliding fit with the outer shaft, and a spring is arranged at the step hole of the outer shaft; the upper end of the mandrel is tightly pressed by a screw and a gasket; the large L plate is fixed with an angle dial fixing block through a bolt, and the angle dial fixing block is used for determining the rotation angle of the small L plate in a matched mode with the angle dial with the degree.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the locking piece arranged on the fixed workpiece head is used for locking the workpiece.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the large L plate is provided with an arc hole, and the angle plate locking handle penetrates through the angle disc to be in threaded connection with the arc hole and the lower hole.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the indexing disk is provided with an alignment head for mating with a fixed workpiece head.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the bottom of the clamp chassis is provided with a groove for matching with an electromagnetic chuck of a button bit sharpening machine.
Advantageous effects
When the double-indexing fixture device is used, the drill bit can be rapidly positioned during grinding, and different ball heads can be rapidly replaced.
Compared with the prior art, the invention has obvious advantages and beneficial effects. According to the technical scheme, the invention has the advantages of simple structure, convenience and rapidness in assembling and disassembling the workpiece, improvement of the grinding efficiency of the workpiece and reduction of the cost of the grinding drill bit.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.
Fig. 4 is a schematic structural view of the small L-plate of the present invention.
Fig. 5 is a schematic view of the structure of the index disk according to the present invention.
Fig. 6 is a schematic view of the structure of the index disk according to the present invention.
The marks in the figure: 1. A clamp chassis; 2. a small L plate; 3. an indexing disc; 4. fixing a workpiece head; 5. a locking member; 6. an outer shaft; 7. a bolt; 8. the angle plate locks the handle; 9. an angle scale; 10. an angle scale fixing block; 11. a large L plate; 12. an arc-shaped hole; 13. a spring; 14. a groove; 15. an upper hole; 16. a lower hole; 17. a mandrel; 18. a bump; 19. a countersunk hole; 20. v-grooves; 21. the head is aligned.
Detailed Description
The following describes specific embodiments, structures, features and effects of the double indexing fixture device for a button bit sharpening machine according to the present invention in detail with reference to the accompanying drawings and preferred embodiments.
Referring to the accompanying drawings 1, 2, 3, 4, 5 and 6 in the specification, the invention provides a double-indexing fixture device of a button bit sharpening machine, which mainly comprises a fixture chassis 1, a small L plate 2, an indexing disc 3, a fixed workpiece head 4, an angle disc 9 and a large L plate 11; the method is characterized in that: the large L plate 11 and the clamp chassis 1 are fixed through bolts, and the small L plate 2 is fixed on the large L plate 11 through bolts 7; the small L plate 2 is provided with an upper hole 15, a lower hole 16, a mandrel 17 and a convex block 18; the indexing disc 3 is fixedly matched with the fixed workpiece head 4 through countersunk holes 19 on the indexing disc 3 by countersunk screws, and the bottom surface of the indexing disc 3 provided with V-grooves 20 is contacted with a small L-shaped plate 2 provided with convex blocks 18 to determine the rotation angle of the fixed workpiece head 4; the fixed workpiece head 4 is provided with an outer shaft 6, the outer shaft 6 is provided with a step hole, a mandrel 17 is in sliding fit with the outer shaft 6, and a spring 13 is arranged at the step hole of the outer shaft 6; the upper end of the mandrel 17 is used for pressing the spring 13 by a screw and a gasket; the large L plate 11 is fixed with an angle dial fixing block 10 through bolts and is used for determining the rotation angle of the small L plate 2 in cooperation with the angle dial 9 with the degrees.
The double indexing fixture device of the button bit sharpening machine is characterized in that: a locking member 5 provided on the fixed workpiece head 4 is used for locking the workpiece.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the large L plate 11 is provided with an arc hole 12, and the angle plate locking handle 8 passes through the angle plate 9 to be in threaded connection with the arc hole 12 and the lower hole 16.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the index plate 3 is provided with an alignment head 21 for co-operation with the fixed workpiece head 4.
The double indexing fixture device of the button bit sharpening machine is characterized in that: the bottom of the fixture chassis 1 is provided with a groove 14 for matching with an electromagnetic chuck of a button bit sharpening machine.
When the invention is used, the proper indexing disc 3 is selected according to the drill bit to be polished, the locking piece 5 is loosened after the indexing disc 3 is installed, the worn drill bit is sleeved on the outer shaft 6, the locking piece 5 is screwed, the drill bit is fixed, the angle plate locking handle 8 is unscrewed, the angle disc 9 is dragged according to the angle required to be adjusted, meanwhile, the angle disc fixing block 10 is matched for determining the adjusted degree, after one ball head is polished, the drill bit is held by hands to pull up, the drill bit can drive the outer shaft 6 to move up, the upper end of the spring 13 installed at the step hole of the outer shaft 6 is compressed by the screw and the gasket at the upper end of the mandrel 17, so that the spring 13 is compressed after being pressed by the step of the outer shaft 6, when the outer shaft 6 rises to a certain height, the indexing disc 3 connected with the fixed workpiece head 4 is separated from the bump 18 below, then the ball head is rotated by a required angle, the compressed ball head spring 13 is opened after the ball head is released, the indexing disc 3 is restored to the original position, the V-shaped groove 20 and the bump 18 on the index disc 3 are matched for completing one-time replacement, and the replacement is sequentially until all ball heads are polished.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any simple modification, equivalent variation and variation of the above embodiment according to the technical matter of the present invention still fall within the scope of the technical scheme of the present invention.