Bearing outer ring end chamfering mechanism

Abstract

The utility model discloses a chamfering mechanism for the end of a bearing outer ring. The chamfering mechanism comprises a backer chuck, a chuck driving device, a tool rest seat, a tool rest seat driving device and a chamfering tool. The backer chuck is used for fixing a bearing outer ring, and the chuck driving device is in transmission connection with the backer chuck and drives the backer chuck to rotate in the axial direction; the chamfering tool is fixedly installed on the tool rest base, the tool rest base driving device drives the chamfering tool to move towards the backing chuck, and the chamfering tool conducts one-time edge grinding forming on chamfers of the inner sharp corner and the outer sharp corner of the end of the bearing outer ring. The bearing outer ring is clamped through the backer chuck, the chuck driving device drives the bearing outer ring to rotate synchronously, one-time chamfering treatment on the inner sharp corner and the outer sharp corner of the bearing outer ring is achieved through the chamfering tool, and the machining efficiency is greatly improved; the device is high in automation degree, the chamfering quality and specification consistency of each workpiece are guaranteed, and quality fluctuation caused by human factors is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bearing assembly machinery technology, specifically to a bearing outer ring end chamfering mechanism. Background Technology

[0002] A linear ball bearing is a mechanical component used to support and guide the movement of moving parts in a linear direction. It typically consists of an outer ring, an inner ring, rolling elements (usually steel balls), and a cage. The main function of a linear ball bearing is to reduce friction, making movement smoother, while also being able to withstand certain radial and axial loads.

[0003] Linear ball bearings are widely used in various mechanical equipment, especially in applications requiring precise linear motion, such as CNC machine tools, automated equipment, measuring instruments, and printing equipment. The outer ring of the bearing is made by cutting a steel tube to the required length and then chamfering it. Chamfering refers to the process of cutting the edges of the workpiece into a certain bevel. Chamfering is used to remove burrs generated during machining and to facilitate assembly; it is generally done at the ends of the part.

[0004] In the current machining process, the inner and outer chamfering of the bearing outer ring needs to be done in two separate processes, which wastes time. Moreover, the two positioning steps are different, which affects the turning accuracy and efficiency. A lot of time is spent on product positioning, which also affects production efficiency.

[0005] In the prior art, such as the patent with publication number CN 208303899 U, there is a bearing outer ring inner and outer ring chamfering device, which is equipped with an inner chamfering cutter and an outer chamfering cutter, and can simultaneously realize the processing of inner and outer circle chamfers. The disadvantage is that after the cutter wears out, the angle needs to be readjusted after reinstallation, which can easily cause errors.

[0006] To address the aforementioned issues, it is necessary to develop a bearing outer ring end chamfering mechanism. Utility Model Content

[0007] The purpose of this invention is to provide a chamfering mechanism for the outer ring end of a bearing, overcoming the aforementioned defects in the prior art.

[0008] The technical solution to achieve the purpose of this utility model is: a bearing outer ring end chamfering mechanism, including a chuck, a chuck driving device, a tool holder, a tool holder driving device, and a chamfering cutter; the chuck is used to fix the bearing outer ring, the chuck driving device is connected to the chuck and drives the chuck to rotate axially; the chamfering cutter is fixedly installed on the tool holder, the tool holder driving device drives the chamfering cutter to move towards the chuck, and the chamfering cutter grinds the inner and outer sharp corners of the bearing outer ring end in one pass.

[0009] As a preferred embodiment, the chamfering tool is provided with an inner chamfering part and an outer chamfering part matched with the bearing outer ring.

[0010] As a preferred embodiment, the inner chamfering part and the outer chamfering part are inclined inwardly at a certain angle.

[0011] As a preferred embodiment, a circular-arc connecting part is arranged between the inner chamfering part and the outer chamfering part.

[0012] As a preferred embodiment, the inner chamfering part and the outer chamfering part are symmetrically arranged along the central axis of the circular-arc connecting part.

[0013] As a preferred embodiment, the chamfering tool is made of hard alloy material.

[0014] With the above technical scheme, the utility model has the following beneficial effects:

[0015] (1) The utility model discloses a bearing outer ring is clamped to the support clamp head, and the clamp head drive arrangement drives the synchronous rotation of bearing outer ring, and the one-time chamfering processing of the inner and outer sharp corners of bearing outer ring is realized through the chamfering tool, and the processing efficiency is greatly improved.

[0016] (2) The utility model discloses that the chamfering tool is provided with the inner chamfering part and the outer chamfering part matched with the bearing outer ring, and the tool is customized according to the specific shape of bearing outer ring, ensures the fitting degree and precision in the chamfering process, improves the processing quality, and the replacement of the tool after wearing also only needs to replace the whole tool, effectively guarantees the consistency before and after replacement.

[0017] (3) The inclined design of the inner and outer chamfering parts helps to reduce the resistance encountered in the cutting process, prolongs the service life of the tool and improves the processing efficiency.

[0018] (4) The circular-arc connecting part makes the transition between the inner and outer chamfers smoother, reduces stress concentration points and helps to improve the durability and aesthetics of the product.

[0019] (5) The symmetrical design helps to maintain the balance of force during the chamfering process, avoids vibration or deviation caused by imbalance and thus improves the processing accuracy and stability.

[0020] (6) The hard alloy has excellent hardness and wear resistance, can withstand high-strength cutting operations, prolongs the service life of the tool and reduces production costs. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed, wherein

[0022] Figure 1 It is the sectional view of the utility model.

[0023] Figure 2 It is the front view of chamfering tool.

[0024] Figure 3 It is the left view of chamfering tool.

[0025] The reference numerals in the drawings are: 1, backrest chuck; 2, chuck driving device; 3, tool holder seat; 4, tool holder seat driving device; 5, chamfering tool; 5-1, inner chamfering part; 5-2, outer chamfering part; 5-3, arcuate connecting part. DETAILED DESCRIPTION

[0026] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in conjunction with the drawings of the specification and specific implementation.

[0027] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further detailed, wherein

[0028] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the embodiments of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship commonly placed when the utility model product is used, or is the orientation or position relationship commonly understood by the person skilled in the art, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.

[0031] In the description of the embodiments of the utility model, it also needs to be explained that, unless explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The utility model will be further described below in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0032] (Embodiment)

[0033] See Figure 1 A bearing outer ring end chamfer mechanism, including abutment chuck 1, chuck driving device 2, tool holder seat 3, tool holder seat driving device 4 and chamfering tool 5;The abutment chuck 1 is used for clamping and fixing the bearing outer ring, one end of the bearing outer ring is attached to the abutment surface in the abutment chuck 1, and the end to be machined of the bearing outer ring protrudes outside the abutment chuck 1. The chuck driving device 2 is in transmission connection with the abutment chuck 1 and drives the abutment chuck 1 to rotate along the axial direction;The chamfering tool 5 is fixedly installed on the tool holder seat 3, and the tool holder seat driving device 4 drives the chamfering tool 5 to move towards the abutment chuck 1, and the chamfering tool 5 is once sharpened to form the inner and outer sharp corners of the outer ring end. The chuck driving device 2 can select a motor, and the tool holder seat driving device 4 selects a cylinder or a screw rod transmission device.

[0034] The bearing outer ring is clamped by the abutment chuck, the chuck driving device drives the bearing outer ring to rotate synchronously, and the chamfering tool realizes one-time chamfering processing of the inner and outer sharp corners of the bearing outer ring, which greatly improves the machining efficiency;The device has high automation, ensures the chamfer quality and specification consistency of each workpiece, and reduces the quality fluctuation caused by human factors.

[0035] Further, see Figure 2 And Figure 3The chamfering tool 5 is provided with an inner chamfering part 5-1 and an outer chamfering part 5-2 matched with the bearing outer ring; the inner chamfering part 5-1 and the outer chamfering part 5-2 are inclined inwardly by a certain angle; a circular-arc connecting part 5-3 is arranged between the inner chamfering part 5-1 and the outer chamfering part 5-2; and the inner chamfering part 5-1 and the outer chamfering part 5-2 are symmetrically arranged along the central axis of the circular-arc connecting part 5-3; and the chamfering tool 5 is made of hard alloy material.

[0036] In use, the proper chamfering tool 5 is selected and installed on the tool holder seat 3; the bearing outer ring is clamped and fixed in the backup chuck 1; the chuck driving device 2 is opened to make the bearing outer ring rotate; the tool holder seat driving device 4 is opened to move the chamfering tool 5 towards the bearing outer ring, and the chamfering tool 5 forms the inner and outer sharp corners of the end part of the bearing outer ring by one-time grinding.

[0037] The chamfering tool is provided with the inner chamfering part and the outer chamfering part matched with the bearing outer ring, the tool is customized according to the specific shape of the bearing outer ring, the fitting degree and the precision in the chamfering process are ensured, the machining quality is improved, and the replacement of the tool after wear only needs to replace the whole tool, thereby effectively ensuring the consistency before and after the replacement. The inclined design of the inner and outer chamfering parts helps to reduce the resistance encountered in the cutting process, prolong the service life of the tool, and improve the machining efficiency. The circular-arc connecting part makes the transition between the inner and outer chamfering parts more smooth, reduces the stress concentration points, and is beneficial to improve the durability and the appearance of the product; the smooth design reduces the risk of injury to the operator, and also reduces the potential damage to the matching parts. The symmetrical design helps to keep the force balanced during the chamfering process, avoids the vibration or deviation caused by the imbalance, and thereby improves the machining precision and the stability. The hard alloy has excellent hardness and wear resistance, can withstand high-strength cutting operations, prolongs the service life of the tool, and reduces the production cost; the high-hardness material can maintain the sharpness for a long time, and ensures the high quality and consistency of the chamfering surface.

[0038] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for the specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A chamfering mechanism for the outer ring end of a bearing, characterized in that: The device includes a chuck (1), a chuck drive device (2), a tool holder (3), a tool holder drive device (4), and a chamfering tool (5). The chuck (1) is used to fix the outer ring of the bearing. The chuck drive device (2) is connected to the chuck (1) and drives the chuck (1) to rotate axially. The chamfering tool (5) is fixedly installed on the tool holder (3). The tool holder drive device (4) drives the chamfering tool (5) to move towards the chuck (1). The chamfering tool (5) is used to chamfer the inner and outer sharp corners of the outer ring of the bearing in one pass.

2. The bearing outer ring end chamfering mechanism according to claim 1, characterized in that: The chamfering tool (5) is provided with an inner chamfer (5-1) and an outer chamfer (5-2) that match the outer ring of the bearing.

3. The bearing outer ring end chamfering mechanism according to claim 2, characterized in that: The inner chamfer (5-1) and outer chamfer (5-2) are inclined inward at a certain angle.

4. The bearing outer ring end chamfering mechanism according to claim 3, characterized in that: An arc-shaped connecting part (5-3) is provided between the inner chamfered part (5-1) and the outer chamfered part (5-2).

5. A bearing outer ring end chamfering mechanism according to claim 4, characterized in that: The inner chamfered portion (5-1) and the outer chamfered portion (5-2) are symmetrically arranged along the central axis of the arc-shaped connecting portion (5-3).

6. The bearing outer ring end chamfering mechanism according to claim 4, characterized in that: The chamfering tool (5) is made of cemented carbide.

Images