Auxiliary clamping fixture for turning small shafts on two sides of bearing seat

Abstract

The utility model relates to the field of lathing of bearing seats, and discloses an auxiliary clamping fixture for lathing of small shafts on two sides of a bearing seat, which comprises a positioning seat, small shaft limiting pins and a fastening component, and is characterized in that a fixed shaft is arranged at one end of the positioning seat, and a clamping table top is arranged at the other end of the positioning seat; a positioning boss matched with a bearing hole of the bearing seat is arranged at the end, away from the fixing shaft, of the clamping table top, and the positioning boss meets the requirement that the axis of the small shaft and the axis of the fixing shaft are collinear after the bearing seat is installed. The small shaft limiting pin is arranged on the clamping tabletop and located between the fixing shaft and the positioning boss, a transverse open groove is formed in the top of the small shaft limiting pin, and the width of the open groove is equal to the diameter of the small shaft on the side face of the bearing seat; and the fastening assembly is used for locking the bearing seat on the positioning boss. According to the utility model, the problem that a workpiece flies out to hurt people is avoided, and the problem that the machining precision is influenced by easy generation of cutter vibration is solved.

Description

Technical Field

[0001] The utility model relates to the field of bearing seat turning, in particular to an auxiliary clamping fixture for turning small shafts on both sides of a bearing seat. Background Art

[0002] There is currently a bearing seat 10 product with small shafts on both sides, and its structure is as shown in the attached manual. Figure 1 and attached Figure 2 As shown, this product requires machining the retaining ring grooves on the heads of the small shafts 10.1 on both sides, and also requires machining the heads and shoulders of the small shafts to ensure that their outer diameters are within the design range. If this product is machined directly using a lathe chuck to clamp the small shafts, the following problems will arise:

[0003] 1. The shoulder of the small shaft is short, and the chuck clamping is unreliable. There is a risk of the workpiece flying out and injuring people during the processing;

[0004] 2. Directly clamping the small shaft on the chuck of the lathe to process the other side is prone to tool vibration, which affects the accuracy of the small shaft processing size and the processing yield rate; at the same time, when processing the other end after one end is processed, clamping the processed end will also cause damage to the surface of that end.

[0005] Based on this, the present application provides an auxiliary clamping fixture for turning the small shafts on both sides of the bearing seat, which can improve the product processing accuracy to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the technical problems existing in the prior art. To this end, the utility model provides an auxiliary clamping fixture for machining small shafts on both sides of a bearing seat, which can improve the machining accuracy of the product.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] An auxiliary clamping fixture for turning the small shafts on both sides of a bearing seat is provided, comprising a positioning seat, a small shaft limiting pin and a fastening assembly, wherein: one end of the positioning seat is provided with a fixed shaft, and the other end is provided with a clamping table, and the end of the clamping table away from the fixed shaft is provided with a positioning boss matching the bearing hole of the bearing seat, and the positioning boss ensures that the axis of the small shaft and the axis of the fixed shaft are collinear after the bearing seat is installed; the small shaft limiting pin is provided on the clamping table between the fixed shaft and the positioning boss, and the top of the small shaft limiting pin is provided with a horizontal opening groove, the width of the opening groove is equal to the diameter of the small shaft on the side of the bearing seat; the fastening assembly is used to lock the bearing seat on the positioning boss.

[0009] In some optional embodiments, a longitudinal groove is further provided on the side of the small shaft limiting pin facing the positioning boss, so that the side surface of the small shaft limiting pin forms a positioning plane for limiting the small shaft shoulder end face.

[0010] In some optional embodiments, the small shaft limiting pin is connected to the clamping table by screwing or welding.

[0011] In some optional embodiments, the fastening assembly includes a bolt and a pressure plate, the pressure plate is provided with a center hole, the bolt passes through the center hole of the pressure plate and is threadedly connected to the positioning boss, and the bearing seat is locked on the positioning boss through the pressure plate and the bolt.

[0012] In some optional embodiments, the positioning seat is an integral structure processed from a stepped shaft.

[0013] In some optional embodiments, a counterweight block is further included, which is detachably mounted above one end of the clamping table away from the positioning boss.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model utilizes the positioning boss and the small shaft limit pin to position the bearing seat, and locks it through the fastening component to achieve the fixation of the middle part of the bearing seat. Compared with directly clamping the small shaft for processing, there will be no problem of the workpiece flying out and injuring people. At the same time, it also solves the problem of easy tool vibration and affecting the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 It is a schematic diagram of the structure of the bearing seat with small shafts on both sides;

[0018] Figure 2 yes Figure 1 A top view of the bearing housing is provided;

[0019] Figure 3 This is a structural diagram of the auxiliary clamping fixture provided by the utility model;

[0020] Figure 4 yes Figure 3 A top view of the provided auxiliary clamping fixture;

[0021] Figure 5 yes Figure 3Left side view of the provided auxiliary clamping fixture;

[0022] Figure 6 This is a diagram showing the clamping state of the bearing seat provided by the utility model on the auxiliary clamping fixture.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1—Location seat, 1.1—Fixed shaft, 1.2—Clamping table, 1.3—Location boss, 2—Small shaft limit pin, 2.1—Opening slot, 2.2—Longitudinal slot, 3—Fastener assembly, 3.1—Bolt, 3.2—Pressure plate, 4—Counterweight, 10—Bearing seat, 10.1—Small shaft. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; the terms "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0029] Example 1

[0030] This embodiment provides an auxiliary clamping fixture for machining the small shafts on both sides of the bearing seat, as shown in the attached Figures 3 to 5 As shown, it includes a positioning seat 1, a small shaft limiting pin 2, a fastening component 3 and a counterweight 4, wherein:

[0031] A fixed shaft 1.1 is provided at one end of the positioning seat 1, and a clamping table 1.2 is provided at the other end; the fixed shaft 1.1 is used for clamping with the chuck of a lathe, and the clamping table 1.2 is used for clamping the bearing seat 10. A positioning boss 1.3 that matches the bearing hole of the bearing seat 10 is provided on the clamping table 1.2 at the end away from the fixed shaft 1.1. The bearing seat 10 can be buckled onto the positioning boss 1.3 so that the bearing hole matches the positioning boss. The positioning boss 1.3 satisfies the requirement that the axis of the small shaft 10.1 and the axis of the fixed shaft 1.1 are collinear after the bearing seat 10 is installed, so that the small shaft of the bearing seat can be on the same straight line as the fixed shaft, which facilitates the turning of the small shaft of the bearing seat. Preferably, the positioning seat 1 is an integrated structure processed from a stepped shaft.

[0032] The small shaft stop pin 2 is provided on the clamping table 1.2, between the fixed shaft 1.1 and the positioning boss 1.3. The top of the small shaft stop pin 2 is provided with a transverse open slot 2.1, the width of which is equal to the diameter of the small shaft 10.1 on the side of the bearing seat 10. In this embodiment, the small shaft stop pin is used to limit the small shaft of the bearing seat, thereby ensuring the position of the bearing seat clamping and preventing deviation between the small shaft and the fixed shaft from affecting processing. Preferably, the small shaft stop pin 2 is screwed or welded to the clamping table 1.2. In this embodiment, screwing is preferred to facilitate replacement of the small shaft stop pin.

[0033] The fastening assembly 3 is used to lock the bearing seat 10 on the positioning boss 1.3, and includes a bolt 3.1 and a pressure plate 3.2. The pressure plate 3.2 is provided with a center hole. The bolt 3.1 passes through the center hole of the pressure plate and is threadedly connected to the positioning boss 1.3. The bearing seat 10 is locked on the positioning boss 1.3 through the pressure plate 3.2 and the bolt 3.1.

[0034] The counterweight block 4 is detachably mounted above the end of the clamping table 1.2 away from the positioning boss 1.3, and is used to counterweight the positioning seat 1 to prevent the positioning seat from vibrating due to counterweight problems when rotating at high speed.

[0035] When using it specifically, Figure 6 As shown, install the bearing seat upside down on the positioning boss, adjust the small shaft so that it is located in the open groove of the small shaft limit pin, and then prevent the pressure plate on the bearing seat, screw the bolts into the positioning boss to complete the fixation of the bearing seat; clamp the auxiliary clamp on the chuck of the lathe to complete the turning of the small shaft on one side of the bearing seat; then loosen the bolts and turn the bearing seat to process the small shaft on the other side of the bearing seat.

[0036] Example 2

[0037] Based on the first embodiment, as shown in the attached Figure 3 To the attached Figure 5 As shown, this embodiment further provides a longitudinal groove 2.2 on the side of the small shaft stop pin 2 facing the positioning boss 1.3, so that the side of the small shaft stop pin 2 forms a positioning plane for limiting the end face of the small shaft shoulder. This design can improve the positioning accuracy of the fixture on the bearing seat.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An auxiliary clamping fixture for machining small shafts on both sides of a bearing seat, characterized by: It includes a positioning seat, a small shaft limiting pin and a fastening component, wherein: One end of the positioning seat is provided with a fixed shaft, and the other end is provided with a clamping table. The end of the clamping table away from the fixed shaft is provided with a positioning boss that matches the bearing hole of the bearing seat, and the positioning boss ensures that the axis of the small shaft and the axis of the fixed shaft are collinear after the bearing seat is installed; The small shaft limiting pin is arranged on the clamping table between the fixed shaft and the positioning boss, and a transverse opening groove is provided on the top of the small shaft limiting pin, and the width of the opening groove is equal to the diameter of the small shaft on the side of the bearing seat; The fastening assembly is used to lock the bearing seat on the positioning boss.

2. The auxiliary clamping fixture for machining the small shafts on both sides of the bearing seat according to claim 1, characterized in that: A longitudinal groove is further provided on the side of the small shaft limiting pin facing the positioning boss, so that the side surface of the small shaft limiting pin forms a positioning plane for limiting the end face of the small shaft shoulder.

3. The auxiliary clamping fixture for machining the small shafts on both sides of the bearing seat according to claim 1, characterized in that: The small shaft limiting pin is connected to the clamping table by screw connection or welding.

4. The auxiliary clamping fixture for machining the small shafts on both sides of the bearing seat according to claim 1, characterized in that: The fastening assembly includes a bolt and a pressure plate, wherein the pressure plate is provided with a center hole, the bolt passes through the center hole of the pressure plate and is threadedly connected to the positioning boss, and the bearing seat is locked on the positioning boss through the pressure plate and the bolt.

5. The auxiliary clamping fixture for machining the small shafts on both sides of the bearing seat according to claim 1, characterized in that: The positioning seat is an integrated structure processed from a stepped shaft.

6. The auxiliary clamping fixture for turning the small shafts on both sides of the bearing seat according to any one of claims 1 to 5, characterized in that: It also includes a counterweight block, which is detachably mounted above one end of the clamping table away from the positioning boss.

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