A small vertical bearing seat type part inner hole processing auxiliary device

Abstract

The utility model relates to a kind of small vertical bearing seat class part inner hole processing auxiliary device, comprising: clamping body (1), it has the reference outer circle for being clamped by three-jaw chuck;At least two positioning pins, it is vertically fixed on the top surface of the clamping body (1), for with the cooperation of two positioning holes on bearing seat part base, the positioning pin includes a cylindrical pin (2) and a rhombic pin (3);The device is clamped by three-jaw chuck, realizes the self-centering of device, installs part on clamping body, is positioned by cylindrical pin, rhombic pin, to screw part, the quick clamping of small vertical bearing seat class part inner hole can be completed when processing, the clamping mode of part when processing can be simplified, reduce the clamping time of part, avoid that part is too small and cannot be clamped and improve the machining accuracy of part.

Description

Technical Field

[0001] This utility model belongs to the field of internal hole processing of bearing seat parts, and specifically relates to a small auxiliary device for internal hole processing of vertical bearing seat parts. Background Technology

[0002] Small vertical bearing housing parts are cylindrical in structure with two symmetrically protruding wings in the middle of their outer circle. Due to the small size of the parts and the presence of two wings in the middle of the outer circle, a three-jaw chuck cannot clamp them, requiring a four-jaw chuck for alignment and machining. This process involves alignment and machining simultaneously, resulting in long clamping times, low machining efficiency, and large alignment errors. Consequently, the inner hole accuracy of the machined small vertical bearing housing parts is poor, affecting bearing rotation, machining accuracy, and ultimately, product quality. Utility Model Content

[0003] This utility model addresses the problems of low machining efficiency and poor quality in the internal hole machining of small vertical bearing seat parts by designing an auxiliary device for machining the internal holes of small vertical bearing seat parts, thereby achieving efficient and high-precision machining of the internal holes of small vertical bearing seat parts.

[0004] To solve the above technical problems, this utility model provides a small auxiliary device for machining the inner hole of vertical bearing seat parts, characterized in that it includes: The clamping body (1) has a reference outer circle for being clamped by a three-jaw chuck; At least two locating pins are vertically fixed to the top surface of the clamp body (1) for engaging with two locating holes on the base of the bearing seat part. The locating pins include a cylindrical pin (2) and a diamond pin (3). At least one clamping screw (4) is screwed into the threaded hole of the clamp body (1) for pressing the positioned bearing seat part against the top surface of the clamp body (1) from above; The clamping body (1) has a through hole at its center.

[0005] Preferably, the top surface of the clamping body (1) is provided with two protruding positioning platforms, and the cylindrical pin (2) and the rhomboid pin (3) are respectively installed on the two positioning platforms.

[0006] Preferably, the two positioning platforms are arranged symmetrically about the central axis of the clamping body (1), and their positions are adapted to the two "wing" structures on the base of the bearing seat part.

[0007] Preferably, there are two clamping screws (4), which are respectively located near the cylindrical pin (2) and the diamond pin (3).

[0008] Preferably, the cylindrical pin (2) is a stepped shaft structure, with its upper large-diameter section used to mate with the positioning hole of the part and its lower small-diameter section used to mate with the pin hole on the fixture body (1).

[0009] Preferably, the upper part of the rhomboid pin (3) is a rhomboid cylinder, which is used to cooperate with the positioning hole of the part to compensate for the positioning error, and the lower part is a cylinder, which is used to cooperate with the pin hole on the fixture (1).

[0010] Preferably, the reference outer circle of the clamping body (1) is clamped by a three-jaw chuck.

[0011] Preferably, the height of the positioning platform matches the structure of the lower surface of the bearing seat component base.

[0012] Beneficial effects: By clamping the device with a three-jaw chuck, the device achieves self-centering, and the parts are installed on the fixture body. The parts are positioned by cylindrical pins and diamond pins and pressed with screws. This allows for quick clamping of the inner holes of small vertical bearing seats during machining, simplifies the clamping method of the parts during machining, reduces the clamping time of the parts, avoids the inability to clamp parts that are too small, and improves the machining accuracy of the parts. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of this utility model; Figure 2 Schematic diagram of the clamping body structure; Figure 3 Schematic diagram of cylindrical pin structure; Figure 4 Schematic diagram of the diamond pin structure; Among them: 1. clamping body 2. cylindrical pin 3. diamond pin 4. screw. Detailed Implementation

[0014] To make the purpose, content and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below.

[0015] This utility model proposes an auxiliary device for machining the inner hole of a small vertical bearing seat part, including a clamping body, a cylindrical pin, a diamond pin, and a screw; The fixture body 1 is a structure combining an annular cylinder and two cuboids. The outer circle of the left annular cylinder is used for three-jaw chuck clamping, and a circular through hole is set in the middle for weight reduction and tool deflection. The upper end face of the outer cuboid on the right side coincides with the center line of the fixture body and contacts the wings on both sides of the part. A circular blind hole is set in the radial direction for installing a cylindrical pin 2, and a threaded through hole is set in the radial direction for installing a screw 4. The upper end face of the inner cuboid on the right side contacts the wings on both sides of the part. A circular blind hole is set in the radial direction for installing a diamond pin 3, and a threaded through hole is set in the radial direction for installing a screw 4.

[0016] The cylindrical pin 2 is a two-stage cylindrical structure with the diameter decreasing from top to bottom. The upper cylinder is used for limiting small vertical bearing seat parts, and the lower cylinder is used for mounting on the fixture body 1.

[0017] The rhombus pin 3 is a structure combining a rhombus column and a cylinder. The upper rhombus column is used for limiting small vertical bearing seat parts, and the lower cylinder is used for mounting on the fixture body 1.

[0018] How to use the auxiliary device for machining the inner hole of small vertical bearing housing parts: Before production, clamp the fixture body 1 with a three-jaw chuck and fix the device on the machine tool, ensuring that the center of the machine tool coincides with the center of the device. During production, place the wings on both sides of the small vertical bearing seat part on the two cuboids on the right side of the fixture body, and position them with cylindrical pins 2 and diamond pins 3. Then, use two screws 4 to press the small vertical bearing seat part tightly, and finally complete the machining of the inner hole of the small vertical bearing seat part.

[0019] Key points of this utility model 1. The entire device is clamped and fixed on the machine tool using a three-jaw chuck, so that the center of the auxiliary device is coaxial with the center of the spindle. This enables the part to be self-centered, eliminating the need to align the center of the part before processing and improving the processing efficiency of the part. 2. Utilize cylindrical pins and diamond pins to quickly position parts, and use screws to clamp the parts, achieving rapid clamping and precise machining of parts; 3. The positioning surface is a machined surface, which has good machining accuracy. It uses cylindrical pins and diamond pins for positioning and screw clamping, which does not produce clamping deformation and ensures good consistency of part machining quality.

[0020] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A small auxiliary device for machining the inner hole of a vertical bearing seat type part, characterized in that, include: The clamping body (1) has a reference outer circle for being clamped by a three-jaw chuck; At least two locating pins are vertically fixed to the top surface of the clamp body (1) for engaging with two locating holes on the base of the bearing seat part. The locating pins include a cylindrical pin (2) and a diamond pin (3). At least one clamping screw (4) is screwed into the threaded hole of the clamp body (1) for pressing the positioned bearing seat part against the top surface of the clamp body (1) from above; The clamping body (1) has a through hole at its center.

2. The auxiliary device for machining the inner hole of small vertical bearing seat parts according to claim 1, characterized in that, The top surface of the clamping body (1) is provided with two protruding positioning platforms, and the cylindrical pin (2) and the rhomboid pin (3) are respectively installed on these two positioning platforms.

3. The auxiliary device for machining the inner hole of small vertical bearing seat parts according to claim 2, characterized in that, The two positioning platforms are arranged symmetrically about the central axis of the clamping body (1), and their positions are adapted to the two "wing" structures on the base of the bearing seat part.

4. The auxiliary device for machining the inner hole of small vertical bearing seat parts according to claim 1, characterized in that, There are two clamping screws (4), which are respectively located near the cylindrical pin (2) and the diamond pin (3).

5. The auxiliary device for machining the inner hole of small vertical bearing seat parts according to claim 1, characterized in that, The cylindrical pin (2) is a stepped shaft structure, with its upper large-diameter section used to mate with the positioning hole of the part and its lower small-diameter section used to mate with the pin hole on the fixture body (1).

6. The auxiliary device for machining the inner hole of small vertical bearing seat parts according to claim 1, characterized in that, The upper part of the rhomboid pin (3) is a rhomboid cylinder, which is used to cooperate with the positioning hole of the part to compensate for the positioning error, and the lower part is a cylinder, which is used to cooperate with the pin hole on the fixture (1).

7. The auxiliary device for machining the inner hole of a small vertical bearing seat part according to any one of claims 1-6, characterized in that, The reference outer circle of the clamping body (1) is held by a three-jaw chuck.

8. The auxiliary device for machining the inner hole of small vertical bearing seat parts according to claim 2, characterized in that, The height of the positioning platform matches the structure of the lower surface of the bearing seat component base.

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