CN211540572U - Machine tool grinding pin positioning device - Google Patents

Abstract

The utility model provides a lathe grinds round pin positioner belongs to machining technical field. The grinding pin positioning device is a clamping structure of a cylinder structure, the clamping structure is provided with a through hole along the axis direction, the through hole is composed of a first hole section, a second hole section and a third hole section which are connected in sequence, the first hole section and the third hole section are larger than the diameter of the axis along the second hole section along the diameter of the axis, the first hole section and the second hole section are used for installing a machine tool spindle, and the inner side wall of the third hole section is provided with a locking structure. The utility model discloses the lathe grinding pin positioner that sets up can realize at the in-process that grinds round pin product hole, and the external tooth reference circle position of product links to each other with the inseparable zero clearance of clamp structure for the product precision that grinds the round pin meets the standard requirement, in machining process, has industry popularization and application and worth.

Description

Machine tool grinding pin positioning device

Technical Field

The utility model relates to the technical field of machining, concretely relates to lathe grinds round pin positioner.

Background

In the existing machine tool machining process, when an inner hole of a pin product is ground, the design is not reasonable enough due to the fact that a positioning structure and a fixing structure are not arranged, the inner hole and the product reference circle jump radially, the precision of the ground pin product is not high, and the condition that the pin product is scrapped in a large quantity exists, so that the production cost is greatly increased, and the production benefit is reduced.

Disclosure of Invention

In order to improve the product precision, reduction in production cost, the utility model provides a lathe grinds round pin positioner.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a lathe grinds round pin positioner, grind round pin positioner and be the tight structure of clamp of cylinder structure, it is provided with the through-hole to press from both sides tight structure along the axis direction, the through-hole comprises the first hole section that connects gradually, second hole section and third hole section, first hole section with the diameter of third hole section along the axis all is greater than the diameter of second hole section along the axis, first hole section with second hole section is used for installing the lathe main shaft, the inside wall of third hole section is provided with locking structure.

Preferably, the locking structure is at least three locking posts.

Preferably, the locking structure is three locking columns, and connecting lines of central points of the three locking columns are in an equilateral triangle shape.

Preferably, one end of the clamping structure, which is far away from the main shaft of the machine tool, is also provided with a pressing structure.

Preferably, the compressing structure is movably connected with the clamping structure.

Preferably, the compressing structure and the clamping structure are in bolt connection.

Preferably, the pressing structure is a pressing plate.

Preferably, one end of the clamping structure close to the main shaft of the machine tool is also provided with a threaded hole.

The utility model has the advantages that:

the utility model discloses a lathe grinds round pin positioner fixes a position when pressing from both sides tight structure to product grinding hole, then closely gapless with the tight structure of clamp through the locking post with the outer tooth reference circle of product links to each other, and further lock fixedly through the clamp plate, it is not hard up to produce during the grinding, effectively guaranteed to grind the round pin in-process at the product, hole and product reference circle run-out are within 0.03, make the geometric tolerances of product satisfy the standard requirement, thereby effectively guaranteed the machining precision of product, and the production efficiency is greatly improved. The utility model discloses a lathe mill round pin positioner, simple structure, convenient operation, it is convenient to install, low cost, safe and reliable has very big industry popularization and application and worth in the small batch production process of machining.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is the structural schematic diagram of the machine tool grinding pin positioning device designed by the utility model.

Detailed Description

The embodiments of the present invention will be described with reference to the accompanying drawings and preferred embodiments, and other advantages and effects of the invention will be easily understood by those skilled in the art from the disclosure in the specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are for purposes of illustration only and are not intended to limit the scope of the present invention.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.

As shown in figure 1, the grinding pin positioning device of the machine tool is a clamping structure 1 of a cylinder structure, a through hole is formed in the clamping structure 1 along the axis direction, the through hole is composed of a first hole section 2, a second hole section 3 and a third hole section 4 which are sequentially connected, the diameters of the first hole section 2 and the third hole section 4 along the axis are larger than the diameters of the second hole section 3 along the axis, the first hole section 2 and the second hole section 3 are used for installing a machine tool spindle, and a locking structure 5 is arranged on the inner side wall of the third hole section 4. The locking structure 5 is at least three locking columns. The locking structure 5 is three locking columns, and the connecting lines of the central points of the three locking columns are in an equilateral triangle shape. And a pressing structure 6 is further arranged at one end, away from the main shaft of the machine tool, of the clamping structure 1. The compressing structure 6 is movably connected with the clamping structure 1. The compressing structure 6 is connected with the clamping structure 1 through a bolt 7. The compacting structure 6 is a press plate. One end of the clamping structure 1 close to the main shaft of the machine tool is also provided with a threaded hole 8.

Wherein, the clamping structure is used for positioning when the product is ground into the inner hole. The locking column is used for locking the external tooth reference circle of the product and the clamping structure. The effect of clamp plate lies in compressing tightly the product on pressing from both sides tight structure, avoids the product to take place to become flexible when grinding the round pin.

The utility model discloses a lathe grinds round pin positioner of above-mentioned embodiment, through first hole section and second hole section with the tight structrual installation of clamp of cylinder structure on the lathe main shaft, and will press from both sides tight structure through the bolt and further fix on the lathe main shaft, then install the product in third hole section, fix a position through pressing from both sides tight structure, and further lock fixed product external tooth reference circle and press from both sides tight structure through the locking post, wherein, the position of all locking posts is between two teeth of product, rotating pressing plate compresses tightly the product on pressing from both sides tight structure again, and further lock solid fixed pressing plate through the bolt that compresses tightly structural, then carry out product and grind round pin work.

The utility model discloses the in-process of lathe round pin positioner for grinding round pin product hole that sets up realizes that the external tooth reference circle position of product links to each other with the tight zero clearance of clamp structure closely, and hole and product reference circle radial run-out are less than 0.03 when ensureing to grind the round pin for the product precision of grinding the round pin accords with the standard requirement, and simple structure, convenient operation, it is convenient to install, low cost, safe and reliable has very big industry popularization and application and worth at the small batch production in-process of machining.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims (8)

1. The utility model provides a lathe grinds round pin positioner, its characterized in that, it is the tight structure of clamp of cylinder structure to grind round pin positioner, it is provided with the through-hole to press from both sides tight structure along the axis direction, the through-hole comprises the first hole section that connects gradually, second hole section and third hole section, first hole section with the third hole section all is greater than along the diameter of axis the second hole section is along the diameter of axis, first hole section with second hole section is used for installing the lathe main shaft, the inside wall of third hole section is provided with locking structure.

2. The machine tool pin grinding orientation device of claim 1 wherein the locking structure is at least three locking posts.

3. The device of claim 2, wherein the locking structure comprises three locking columns, and the connecting lines of the central points of the three locking columns are equilateral triangles.

4. The apparatus of claim 1, wherein the clamping structure further comprises a compression structure at an end of the clamping structure remote from the spindle of the machine tool.

5. The machine tool pin grinding orientation device of claim 4 wherein the hold down structure is movably connected to the clamp structure.

6. The machine tool pin grinding positioning device of claim 5, wherein the compression structure and the clamping structure are bolted together.

7. The machine tool pin grinding orientation device of claim 4 wherein the hold-down structure is a platen.

8. The machine tool pin grinding positioning device of claim 1, wherein the clamping structure is further provided with a threaded hole at an end thereof adjacent to the spindle of the machine tool.

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