CN213531849U

CN213531849U - Process device for drilling indexing holes of cylindrical parts

Info

Publication number: CN213531849U
Application number: CN202022228540.9U
Authority: CN
Inventors: 魏明
Original assignee: Y & J Industries Co ltd
Current assignee: Y & J Industries Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-25
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a bore process units in drum class part indexing hole belongs to the processing tool field. The utility model discloses can satisfy the part and need in the spot facing work in radial equipartition or branch angle hole, effectively guarantee the graduation precision in hole, improve graduation and machining efficiency. The utility model comprises a dividing seat, a positioning pin, a compression washer and a compression bolt; a plurality of positioning grooves which are uniformly distributed or arranged at a set angle are arranged on the indexing seat and are in positioning connection with indexing holes of workpieces to be processed through positioning pins; the indexing seat is provided with a radial positioning surface and an axial positioning surface so as to meet the requirement of part positioning precision; set up pressure washer on the work piece compresses tightly the face to use pressure bolt in order to satisfy that the part pastes tightly with the axial positioning face, satisfy positioning accuracy, pressure washer still satisfies the requirement of fast loading and unloading part through setting up the U-shaped groove simultaneously, has improved machining efficiency.

Description

Process device for drilling indexing holes of cylindrical parts

Technical Field

The utility model relates to a processing tool field especially relates to a bore process units in drum class part indexing hole.

Background

At present, the common mode for processing the indexing holes of the cylindrical parts is to use an indexing disc or a four-axis processing; when the index plate is used for machining, the index plate has low efficiency because other indexes need to be scaled or numbered, and indexing errors caused by wrong numbers of turns or holes are easy to occur, so that the machining precision requirement of parts can not be met frequently; when four-axis machining is used, the efficiency is improved, but the cost is multiplied, the economical efficiency of parts is greatly influenced, and a plurality of customers cannot accept the method at all.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the process device for drilling the indexing holes of the cylindrical parts is provided, so that the rapid and high-precision machining of the uniformly distributed circumference or the angular holes of the cylindrical parts can be realized, the production efficiency is ensured under the condition of meeting the requirement of the machining precision of the indexing holes of the parts, and the machining cost is also reduced.

The utility model provides a technical scheme that its technical problem adopted is: the process device for drilling the indexing holes of the cylindrical parts comprises an indexing seat, a positioning pin, a compression washer and a compression bolt; the indexing seat is provided with an indexing seat clamping and fixing structure; an axial positioning surface and a radial positioning surface for positioning during workpiece assembly are arranged on the indexing seat; an avoiding surface is arranged on the indexing seat; one end of the radial positioning surface is connected with the axial positioning surface, the other end of the radial positioning surface is connected with the avoiding surface, a pressing threaded hole is formed in the avoiding surface side of the indexing seat, the axis of the pressing threaded hole is parallel to or collinear with the axis of the radial positioning surface, a pressing gasket is sleeved on the rod part of a pressing bolt, and the pressing bolt is in threaded connection with the pressing threaded hole; be provided with one or more constant head tank on the radial positioning face, the constant head tank is circular recess or for the axial consistent bar groove of length direction and radial positioning face, the diameter and the constant head tank looks adaptation of locating pin for in the locating pin can insert the constant head tank, set for the benchmark with the first position of treating the axis correspondence of processing hole of work piece on the radial positioning face, use the longitudinal section at this benchmark place as the reference plane, the central line position of constant head tank is the setting value for the central angle that the benchmark place formed.

Further, the method comprises the following steps: and a plurality of positioning grooves are arranged at intervals along the peripheral direction of the radial positioning surface.

Further, the method comprises the following steps: the position, corresponding to the axis of the first hole to be machined of the workpiece, on the radial positioning surface is set as a reference point, and the positioning grooves are distributed on two sides of the reference point in a mirror symmetry mode.

Further, the method comprises the following steps: the root part of the axial positioning surface of the dividing seat is provided with a tool withdrawal groove.

Further, the method comprises the following steps: the pressure washer is provided with a U-shaped groove, and the pressure bolt penetrates through the U-shaped groove on the pressure washer for assembly.

Further, the method comprises the following steps: the indexing seat clamping and fixing structure is provided with a clamping surface of a cylindrical structure, and the clamping surface and the radial positioning surface are arranged coaxially.

Further, the method comprises the following steps: the indexing seat clamping and fixing structure is a T-shaped structure with a pressing hole or a pressing groove.

The utility model has the advantages that: when the device is implemented, the indexing table is clamped and fixed on a machine tool or other auxiliary tools, the axial positioning surface of the indexing table is attached to and positioned on the axial positioning surface of a workpiece, the radial positioning surface of the indexing table is in tolerance fit with and coaxially positioned with the radial positioning surface of the workpiece, and the workpiece is tightly pressed and assembled on the indexing table through the compression bolt and the compression washer. After the workpiece is assembled, when a first hole of the workpiece is machined, drilling and machining are carried out according to a conventional mode. And after the first hole is processed, loosening the compression bolt, rotating the workpiece to align the first processed hole with the positioning groove, inserting the positioning pin to realize indexing positioning of the workpiece, and then screwing the compression bolt to process the second hole. And finishing the machining of all the rest indexing holes by referring to the machining mode of the second hole. When the utility model is in actual use, indexing and positioning are carried out by means of the positioning pin, the positioning groove and the processed hole of the workpiece, and the processing efficiency is improved on the premise of ensuring the indexing precision of the part indexing hole; meanwhile, the indexing use requirements on four-axis and other machine tools are reduced, and the production cost of parts is effectively reduced. The utility model discloses be particularly useful for the indexing hole processing of common symmetry mirror image graduation part such as 180 °, 90 and 45.

Drawings

FIG. 1 is a schematic diagram of the use of the process apparatus with a workpiece according to the present invention.

Fig. 2 is a schematic structural diagram of the process device of the present invention.

Fig. 3 is a structural view of the process apparatus of the present invention.

Labeled as: the indexing table comprises an indexing seat 1, a positioning pin 2, a workpiece 3, a compression washer 4, a compression bolt 5, a tool withdrawal groove 6, a positioning rectangular groove 7, a positioning kidney-shaped groove 8, a machined hole 9, a compression threaded hole 10, a clamping surface A, an axial positioning surface B, a radial positioning surface C, an avoiding surface D, an outer circular surface E of the positioning pin, a workpiece axial reference surface F, a compression surface H of the workpiece and a workpiece radial positioning surface K.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present invention includes an index seat 1, a positioning pin 2, a pressing washer 4 and a pressing bolt 5; the indexing seat 1 is provided with an indexing seat clamping and fixing structure; an axial positioning surface B and a radial positioning surface C for positioning when the workpiece 3 is assembled are arranged on the indexing seat 1; an avoidance surface D is arranged on the indexing seat 1; one end of the radial positioning surface C is connected with the axial positioning surface B, the other end of the radial positioning surface C is connected with the avoiding surface D, a pressing threaded hole 10 is formed in the side of the avoiding surface D of the indexing seat 1, the axis of the pressing threaded hole 10 is parallel or collinear with the axis of the radial positioning surface C, a pressing washer 4 is sleeved on the rod part of a pressing bolt 5, and the pressing bolt 5 is in threaded connection with the pressing threaded hole 10; be provided with one or more constant head tank on radial orientation face C, the constant head tank is circular recess or for the axial consistent bar groove of length direction and radial orientation face C, the diameter and the constant head tank looks adaptation of locating pin 2, make in locating pin 2 can insert the constant head tank, set for the benchmark with the first position that treats the axis correspondence of processing hole of work piece 3 on the radial orientation face C, use the longitudinal section at this benchmark place as the reference plane, the central line position of constant head tank is the setting value for the central angle that the benchmark place position formed.

When the positioning groove is a circular groove, the positioning groove is only suitable for processing the axial position of the indexing hole into a specific size, and in order to enable the process device to have better adaptability, the positioning groove is preferably a strip-shaped groove which can be a positioning rectangular groove 7 or a positioning kidney-shaped groove 8, so that the process device has no limit on the axial position of the indexing hole.

The number of the positioning grooves may be one or more. When the number of the positioning grooves is one, the process device is only used for machining the indexing holes at a certain specific angle. For example, the central angle formed by the position of the central line of the positioning groove relative to the position of the reference point is set to be 60 degrees, and the process device is only used for machining the indexing parts with the indexing holes uniformly distributed at 60 degrees.

In order to enable the process device to have better adaptability, a plurality of positioning grooves are arranged at intervals along the peripheral direction of the radial positioning surface C. Thus, the method can be suitable for machining the indexing holes in different distribution modes. Preferably, the position of the radial positioning surface C corresponding to the axis of the first hole to be machined in the workpiece 3 is set as a reference point, and the positioning grooves are distributed in mirror symmetry on two sides of the reference point. Thus, when the workpiece 3 is rotated in the machining process, the requirement of the rotating direction is not required, and the workpiece can be rotated clockwise or anticlockwise.

In addition, can adopt the equipartition mode to set up between a plurality of constant head tanks, also can adopt to be the mode setting of setting for the angle interval. The positioning groove and the processed hole of the workpiece 3 are the same in size and tolerance characteristics and are used for radial indexing positioning of the positioning pin 2.

The tool withdrawal groove 6 is arranged at the root part of the axial positioning surface B of the indexing seat 1, so that the axial reference surface F of the workpiece can be tightly attached and positioned with the axial positioning surface B of the indexing seat 1, and the processing precision is improved.

In order to realize rapid assembly, the pressing washer 4 is provided with a U-shaped groove, and the pressing bolt 5 penetrates through the U-shaped groove on the pressing washer 4 for assembly.

The utility model discloses when the in-service use, can adjust graduated seat centre gripping fixed knot according to the requirement of equipment and other instruments constructs. For example, when applied to a three-jaw chuck, the indexing table clamping fixture is provided as a cylindrical clamping surface a, which is arranged coaxially with the radial positioning surface C. When the indexing seat clamping and fixing structure is suitable for milling, the indexing seat clamping and fixing structure is arranged to be a T-shaped structure with a pressing and holding hole or a pressing and holding groove.

When a workpiece 3 is loaded, the axial reference surface F of the workpiece is aligned with the axial positioning surface B of the indexing seat 1 to complete axial positioning; the radial positioning surface K of the workpiece is coaxially matched with the radial positioning surface C of the indexing seat 1 to complete radial positioning; the positioning pin 2 is connected with a processed hole 9 on the workpiece 3 through a positioning rectangular groove 7 or positioning kidney-shaped grooves 8 which are uniformly distributed to complete positioning; and then the workpiece 3 is fixed on the indexing seat 1 through a compression washer 4 and a compression bolt 5 so as to finish the machining of the indexing hole.

In actual use, in the prior art, for example, when the index plate indexes, the index precision is low because of the fact that a plurality of index holes on the index plate easily cause wrong holes or wrong circles. Or the working time and the cost of equipment are high when the shaft four is used for processing, so that the processing cost of parts is multiplied, and the economic processing of large-batch parts cannot be met. The utility model discloses combine actual work piece structure, ingenious setting up a plurality of location rectangular channels 7 or location kidney slot 8 at graduated seat 1, do the locating hole through the good hole 9 of processing of part itself, accomplish location and accurate graduation with locating pin 2, guaranteed the graduation precision promptly, still improved graduation efficiency.

When the process device is used, the compression bolt 5 is firstly loosened, the compression washer 4 is then taken down, the workpiece 3 is then loaded into the indexing seat 1, and the positioning of the workpiece 3 is completed through the radial positioning surface C and the axial positioning surface B of the indexing seat 1. After the pressure washer 4 is installed, the pressure bolt 5 is tightened to complete the assembly. After the workpiece 3 is installed, the first hole is machined in a conventional mode, and other holes are machined by the machined holes 9 participating in indexing positioning.

Specifically, when the workpiece 3 is loaded, the axial reference surface F of the workpiece is aligned with the axial positioning surface B of the indexing seat 1 to complete axial positioning; the radial positioning surface K of the workpiece is coaxially matched with the radial positioning surface C of the indexing seat 1 to complete radial positioning concentricity; wherein, the radial positioning surface C of the dividing seat 1 and the radial positioning surface K of the workpiece are tolerance matching surfaces.

The number of the uniform distribution or the angle division of the positioning rectangular grooves 7 or the positioning kidney-shaped grooves 8 on the indexing base 1 is determined according to the radial holes of the parts (namely the processed holes 9 in the drawing) and is as same as possible, so that the sufficient indexing precision and efficiency are ensured.

The utility model is suitable for a batch processing drum class part indexing hole improves production efficiency under the requirement of ensureing part indexing hole machining precision, reduces the processing cost.

Claims

1. The process device for drilling the indexing holes of the cylindrical parts is characterized by comprising an indexing seat (1), a positioning pin (2), a compression washer (4) and a compression bolt (5); the indexing seat (1) is provided with an indexing seat clamping and fixing structure; an axial positioning surface (B) and a radial positioning surface (C) for positioning when the workpiece (3) is assembled are arranged on the indexing seat (1); an avoidance surface (D) is arranged on the indexing seat (1); one end of the radial positioning surface (C) is connected with the axial positioning surface (B), the other end of the radial positioning surface (C) is connected with the avoiding surface (D), a pressing threaded hole (10) is formed in the side of the avoiding surface (D) of the indexing seat (1), the axis of the pressing threaded hole (10) is parallel to or collinear with the axis of the radial positioning surface (C), a pressing washer (4) is sleeved on the rod part of a pressing bolt (5), and the pressing bolt (5) is in threaded connection with the pressing threaded hole (10); be provided with one or more constant head tank on radial positioning face (C), the constant head tank is circular recess or for the axial phase unanimous bar groove of length direction and radial positioning face (C), the diameter and the constant head tank looks adaptation of locating pin (2), make in locating pin (2) can insert the constant head tank, set up the position that corresponds with the first axis of treating the processing hole of work piece (3) on radial positioning face (C) for the benchmark point, the longitudinal section that uses this benchmark point to be the reference plane, the central line position of constant head tank is the setting value for the central angle that the position formed at benchmark point.

2. The apparatus for drilling indexing holes in cylindrical parts according to claim 1, wherein: and a plurality of positioning grooves are arranged at intervals along the peripheral direction of the radial positioning surface (C).

3. The apparatus for drilling indexing holes in cylindrical parts according to claim 2, wherein: the locating grooves are distributed in mirror symmetry at two sides of the datum point.

4. The process device for drilling the indexing holes of the cylindrical parts according to claim 1, wherein the root of the axial positioning surface (B) of the indexing seat (1) is provided with the tool withdrawal groove (6).

5. The process device for drilling the indexing hole of the cylindrical part according to claim 1, wherein the compression washer (4) is provided with a U-shaped groove, and the compression bolt (5) is assembled by penetrating the U-shaped groove on the compression washer (4).

6. The process device for drilling the indexing hole of the cylindrical part according to any one of claims 1 to 5, wherein the indexing seat clamping and fixing structure is provided as a clamping surface (A) of a cylindrical structure, and the clamping surface (A) and the radial positioning surface (C) are coaxially arranged.

7. The process device for drilling the indexing hole of the cylindrical part according to any one of claims 1 to 5, wherein the indexing seat clamping and fixing structure is a T-shaped structure with a press holding hole or a press holding groove.