CN211361068U

CN211361068U - Clamp for batch processing of PCBN blade blank with counter bore

Info

Publication number: CN211361068U
Application number: CN201922315802.2U
Authority: CN
Inventors: 崔卫民; 卜进昌; 冯志朝
Original assignee: Zhengzhou Berlt Hard Materials Co ltd
Current assignee: Zhengzhou Berlt Hard Materials Co ltd
Priority date: 2019-12-21
Filing date: 2019-12-21
Publication date: 2020-08-28
Anticipated expiration: 2029-12-21

Abstract

The utility model provides a batch processing takes anchor clamps of counter bore PCBN blade blank, including the bottom plate, bottom plate upper portion evenly is provided with a plurality of reference column, and the reference column bonds with the blade blank; a positioning boss is fixedly arranged on one side of the bottom plate, a cutter nest depth positioning block is movably sleeved on the positioning boss, the positioning boss is connected with a limiting device, and the limiting device is matched with the cutter nest depth positioning block. The utility model discloses according to sword nest degree of depth requirement, the rotatory reference surface at the sword nest locating piece of bottom plate one side faces up, regards the reference surface as the reference surface, is convenient for carry out sword nest processing to batch PCBN blade blank on the bottom plate, fine assurance the uniformity of PCBN blade nest degree of depth.

Description

Clamp for batch processing of PCBN blade blank with counter bore

Technical Field

The utility model relates to a technical field of PCBN blade processing especially relates to an anchor clamps of batch processing area counter bore PCBN blade blank.

Background

In the past, PCBN can only be made into a smooth surface because of no positioning hole, and after the PCBN is installed on a cutter bar, a blade is easy to shake in the machining process, so that the machining precision is insufficient. PCBN blade with counter bore appears in the market at present, and the installation is firmer. The PCBN blade with the counter bore has two processing modes, one mode is that the counter bore is processed on the smooth blade by a laser engraving method, the method has low efficiency and high cost, and the advantage is that the precision of the processed counter bore is high; the other mode is that a PCBN blade blank with the counter bore blade is directly formed through a die in the synthesis process, the depths of upper tool pockets of the blank are different and have larger difference, and then the later-stage processing is carried out to ensure the size and the consistency of the counter bores. The second method for machining the counter bore blade faces several problems: machining efficiency is not high, needs a slice volume, and the condition that the sword nest degree of depth is inconsistent appears in batch processing in addition, causes the blade outward appearance pleasing to the eye, and the fastness is not enough during the clamping.

SUMMERY OF THE UTILITY MODEL

When processing production to present batch area counter bore PCBN blade blank sword nest, machining efficiency is not high to the inconsistent condition of sword nest degree of depth appears easily, causes the blade outward appearance pleasing to the eye, technical problem that the fastness is not enough during the clamping, the utility model provides an anchor clamps of batch processing area counter bore PCBN blade blank.

In order to solve the above problem, the technical scheme of the utility model is so realized:

a fixture for batch processing of PCBN blade blanks with counter bores comprises a bottom plate, wherein a plurality of positioning columns are uniformly arranged at the upper part of the bottom plate and are bonded with the blade blanks; a positioning boss is fixedly arranged on one side of the bottom plate, a cutter nest depth positioning block is movably sleeved on the positioning boss, the positioning boss is connected with a limiting device, and the limiting device is matched with the cutter nest depth positioning block.

Preferably, the upper surface of the positioning boss is parallel to the upper plane of the base plate, and the upper surface of the positioning boss is matched with the cutter nest depth positioning block.

Preferably, a screw hole is formed in the positioning boss and is in threaded connection with the limiting device.

Preferably, stop device includes the housing screw, housing screw and screw hole threaded connection and housing screw and sword nest degree of depth locating piece cooperate.

Preferably, the tool recess depth positioning block comprises a plurality of reference surfaces, the reference surfaces are matched with the upper surface of the positioning boss, a positioning hole is formed in the tool recess depth positioning block, and the positioning hole is sleeved on the positioning boss.

Preferably, the shape of the positioning hole is the same as that of the positioning boss, and the length of the positioning hole is greater than that of the positioning boss.

Preferably, the shape of the knife nest depth positioning block is a polygon.

The utility model has the advantages that: the utility model discloses when adopting non-regular polygon sword nest degree of depth locating hole, because the locating hole central point on the locating piece puts the distance to every reference surface different, according to sword nest degree of depth requirement, the rotatory reference surface of sword nest locating piece in bottom plate one side faces up, the internal surface of locating hole and the upper surface coincidence of location boss this moment, height between reference surface and the location boss up this moment can regard as the correction height, be convenient for carry out sword nest processing to the batch PCBN blade blank on the bottom plate, fine assurance PCBN blade sword nest degree of depth's uniformity, when having solved present batch production to counter bore PCBN blade blank sword nest processing, machining efficiency, and the not high unanimous condition of sword nest degree of depth appears easily, cause the not aesthetic technical problem of blade outward appearance.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the usage state of the present invention.

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

Fig. 3 is a schematic view of the overall structure of the present invention.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a top view of the middle bottom plate of the present invention.

Fig. 6 is a right side view of fig. 5.

Fig. 7 is a schematic structural view of the depth positioning block of the regular polygon positioning tool nest of the present invention.

Fig. 8 is a schematic structural view of the non-regular polygon positioning tool nest depth positioning block of the present invention.

In the figure, 1 is a blade blank, 2 is a positioning column, 3 is a bottom plate, 4 is a tool nest depth positioning block, 41 is a reference surface, 42 is a positioning hole, 5 is a compression screw, 6 is a screw hole, and 7 is a positioning boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example 1: as shown in figures 3 and 4, a batch processing area counter bore PCBN blade blank's anchor clamps, includes

bottom plate

3, 3 upper portions of bottom plate evenly are provided with a plurality of reference column 2, and reference column upper portion plane is provided with blade bonding plane, and reference column 2 bonds with blade blank 1, and when using, on putting into the reference column with the sword nest of blade blank, the laminating of blade sword nest bottom plane and reference column upper portion plane is through powerful glue bonding.

As shown in fig. 5 and 6, a positioning boss 7 is fixedly arranged on one side of the base plate 3, a knife nest depth positioning block 4 is sleeved on the positioning boss 7, the upper surface of the positioning boss 7 is parallel to the upper surface of the base plate 3, and the upper surface of the positioning boss 7 is matched with the knife nest depth positioning block 4, so that when the knife nest depth positioning block is mounted on the positioning boss, the upper surface of the knife nest depth positioning block is parallel to the plane of the base plate, and the knife nest depth positioning block can be conveniently used as a reference.

The positioning boss 7 is connected with a limiting device, a screw hole 6 is formed in the positioning boss 7, the screw hole 6 is in threaded connection with the limiting device, the limiting device is matched with the cutter nest depth positioning block 4, namely, the limiting device is used for clamping and fixing the cutter nest depth positioning block, the limiting device comprises a compression screw 5, the compression screw 5 is in threaded connection with the screw hole 6, the compression screw 5 is matched with the cutter nest depth positioning block 4, and the cutter nest depth positioning block and the positioning lug are tightly attached and clamped and fixed on the floor after the compression screw is screwed into the screw hole.

The tool nest depth positioning block 4 comprises a plurality of reference surfaces 41, the reference surfaces 41 are matched with the upper surface of the positioning boss 7, namely when different depths are selected, when the tool nest depth positioning block is rotated to determine the position, the reference surfaces are parallel to the upper surface of the positioning boss, the positioning hole 42 is formed in the tool nest depth positioning block 4 and is sleeved on the positioning boss 7, the shape of the positioning hole 42 is the same as that of the positioning boss 7, the matching precision of the positioning boss and the positioning hole is required to be high, the matching tolerance is controlled to be 0.02-0.05 mm, the length of the tool nest depth positioning block 4 is larger than that of the positioning boss 7, the shape of the tool nest depth positioning block 4 is a polygon, the appearance of the tool nest depth positioning block can be designed to be various, such as triangle, square, hexagon, octagon and the like, as shown in figure 8, when the tool nest depth positioning block is a non-regular polygon, the distance, and processing the distance from each surface to the center of the mounting hole according to the depth requirement of the cutter nest, and rotating the positioning block according to the depth requirement of the cutter nest of the blade so as to facilitate the rapid adjustment of the blade with different cutter nest depths.

As shown in fig. 1 and 2, in use, according to the depth requirement of a tool nest, rotating the reference surface of the corresponding tool nest depth positioning block to face upwards, clamping and fixing the tool nest depth positioning block and the positioning lug on a bottom plate by using a compression screw, then adhering a blade blank on a positioning column of the bottom plate by using strong glue, drawing a mark on the surface of the tool nest depth positioning block by using a marking pen, then fixing the bottom plate on a machine tool by using an electromagnetic chuck of the machine tool, observing whether the mark on the tool nest depth positioning block is ground or not in the grinding process, if part of the mark is ground, machining the size of the tool nest in place, taking out a clamp, baking the clamp to 200 degrees in an oven, burning off a blade stuck on the clamp, and then installing the other surface for grinding. The utility model discloses when adopting non-regular polygon sword nest degree of depth locating hole, because the locating hole central point on the locating piece puts the distance to every reference surface different, according to sword nest degree of depth requirement, the rotatory reference surface of sword nest locating piece in bottom plate one side faces up, the internal surface of locating hole and the upper surface coincidence of location boss this moment, height between reference surface and the location boss up this moment can regard as the correction height, be convenient for carry out sword nest processing to the batch PCBN blade blank on the bottom plate, fine assurance PCBN blade sword nest degree of depth's uniformity, when having solved present batch production to counter bore PCBN blade blank sword nest processing, machining efficiency, and the not high unanimous condition of sword nest degree of depth appears easily, cause the not aesthetic technical problem of blade outward appearance.

Example 2: as shown in fig. 7, when the tool nest depth positioning block is a regular polygon, the tool nest depth requires that the distances from each machined surface to the center of the mounting hole are consistent, and the tool nest depth positioning block does not need to be rotated during batch production.

The rest of the structure is the same as in example 1.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for batch processing of PCBN blade blanks with counter bores comprises a bottom plate (3), and is characterized in that a plurality of positioning columns (2) are uniformly arranged at the upper part of the bottom plate (3), and the positioning columns (2) are bonded with the blade blanks (1); the utility model discloses a cutter nest depth positioning device, including bottom plate (3), bottom plate (7) are fixed to be provided with location boss (7) one side, and the cover is equipped with cutter nest depth positioning piece (4) on location boss (7), and location boss (7) are connected with stop device and cutter nest depth positioning piece (4) cooperate.

2. The fixture for batch processing of the PCBN blade blank with the counter bore according to claim 1, wherein the upper surface of the positioning boss (7) is parallel to the upper surface of the bottom plate (3) and the upper surface of the positioning boss (7) is matched with the tool recess depth positioning block (4).

3. The fixture for batch processing of the PCBN blade blank with the counter bore according to claim 1 or 2, wherein a screw hole (6) is formed in the positioning boss (7), and the screw hole (6) is in threaded connection with a limiting device.

4. The fixture for batch processing of the PCBN blade blank with the counter bore according to claim 3, wherein the limiting device comprises a compression screw (5), the compression screw (5) is in threaded connection with the screw hole (6), and the compression screw (5) is matched with the tool recess depth positioning block (4).

5. The fixture for batch processing of the PCBN blade blank with the counter bore according to claim 1 or 4, wherein the tool pocket depth positioning block (4) comprises a plurality of reference surfaces (41), the reference surfaces (41) are matched with the upper surfaces of the positioning bosses (7), positioning holes (42) are formed in the tool pocket depth positioning block (4), and the positioning holes (42) are sleeved on the positioning bosses (7).

6. The fixture for batch processing of the PCBN blade blank with the counter bore according to claim 5, wherein the shape of the positioning hole (42) is the same as that of the positioning boss (7) and the length of the tool recess depth positioning block (4) is larger than that of the positioning boss (7).

7. The fixture for batch processing of a countersunk PCBN blade blank according to claim 6, wherein the pocket depth positioning block (4) is polygonal in shape.