阅读说明：本技术 一种用于轴承体油环槽加工的装夹工装 (Clamping tool for machining oil ring groove of bearing body ) 是由 李露 聂骞 朱杰 周少华 熊健 丁剑峰 于 2021-07-27 设计创作，主要内容包括：本发明提供了一种用于轴承体油环槽加工的装夹工装,包括工作台和安装在工作台上的挡板、至少一个可活动的工位,待加工的轴承体放置并被压紧在挡板和一个工位之间,工位接触并压紧轴承体的外侧曲面,工位的和轴承体接触的面为V形。本发明通过限制轴承体的自由度而不施加过大压紧力的方法将轴承体固定,既保证了产品不因压紧而变形,又实现了通过对轴承体的装夹,防止其不利于加工的移动,所述工装可以实现多工位,同时进行同规格多个轴承体的加工或者进行不同规格轴承体的加工,所述工装结构合理简单,安全可靠成本低,保证了轴承体的加工质量,提高了生产效率。(The invention provides a clamping tool for machining an oil ring groove of a bearing body, which comprises a workbench, a baffle plate and at least one movable station, wherein the baffle plate is arranged on the workbench, the bearing body to be machined is placed and pressed between the baffle plate and one station, the station is contacted with and presses the outer curved surface of the bearing body, and the surface of the station, which is contacted with the bearing body, is in a V shape. The tool fixes the bearing body by limiting the freedom degree of the bearing body without applying an excessive pressing force, thereby not only ensuring that a product is not deformed due to pressing, but also preventing the bearing body from moving which is not beneficial to processing by clamping the bearing body.)

1. The utility model provides a clamping frock for bearing body oil ring groove processing which characterized in that, includes workstation (1) and baffle (3), at least one mobilizable station of installing on workstation (1), and the bearing body (4) of treating the processing are placed and are compressed tightly between baffle (3) and a station, and the outside curved surface of station contact and compression bearing body (4), the face of station and bearing body (4) contact is the V-arrangement.

2. The clamping tool according to claim 1, wherein: the station comprises a positioning block (23), the positioning block (23) is movable on the workbench (1), the positioning block (23) is provided with a V-shaped opening, and the V-shaped opening is in contact with the outer side curved surface of the bearing body (4) during use.

3. The clamping tool according to claim 2, wherein: the station still includes fixing base (21) and regulating block (22), and fixing base (21), regulating block (22) and locating piece (23) are arranged in proper order, and fixing base (21) fixed mounting is on workstation (1), and the one end of regulating block (22) and the one end inclined plane cooperation of fixing base (21), the other end of regulating block (22) and the one end inclined plane cooperation of locating piece (23), and regulating block (22) can reciprocate.

4. The clamping tool according to claim 3, wherein: the station further comprises a first bolt and a first nut, a through hole is formed in the middle of the adjusting block (22), the bolt penetrates through the through hole, the upper end of the bolt is in threaded connection with the first nut, and the lower end of the bolt is tightly pressed on the workbench (1).

5. The clamping tool according to claim 2, wherein: the station also comprises a pressure plate assembly (24) used for contacting and pressing the end face of the bearing body (4), and the pressure plate assembly (24) is arranged on the positioning block (23).

6. The clamping tool according to claim 5, wherein: the pressing plate assembly (24) comprises a pressing plate (241), a screw rod (242) and a second nut (243), one end of the screw rod (242) is fixedly installed on the positioning block (23), the other end of the screw rod (242) is suspended upwards, the pressing plate (241) is sleeved on the screw rod (242) and can move along the screw rod (242), and the second nut (243) is screwed on the upper end of the screw rod (242).

7. The clamping tool according to claim 6, wherein: the pressing plate assembly (24) further comprises a guide rod (244), the guide rod (244) is fixedly installed on the positioning block (23), the guide rod (244) and the screw rod (242) are arranged in parallel at intervals, and the pressing plate (241) is sleeved on the guide rod (244) and the screw rod (242) simultaneously.

8. The clamping tool according to claim 2, wherein: when a plurality of stations are arranged on the workbench (1), the opening angle of the V-shaped opening of the positioning block (23) of each station is different.

9. The clamping tool according to claim 4, wherein: at least one rail (5) is arranged on the workbench (1) in parallel at intervals, and the positioning block (23) of each station moves along one rail (5).

10. The clamping tool according to claim 9, wherein: the baffle (3) is vertical to the track (5).

Technical Field

The invention belongs to the technical field of bearings, and particularly relates to a clamping tool for machining an oil ring groove of a bearing body.

Background

When the oil ring groove is machined in the bearing, the end face of the bearing body is pressed by a pressing plate in a traditional fixing mode, the clamping mode is that the friction force of the end face of the bearing body is utilized to play a fixing role, and when the clamping force is high, the clamping stress is easily generated on the position of the oil ring groove, so that the quality and the stability of a product are influenced; when the clamping force is small, the workpiece cannot resist the cutting force, so that the workpiece is displaced in the machining process to cause cutter breakage or collision, and the center coordinates of the joint surface and the part need to be corrected again when the clamping is repeated, so that the clamping correction time is long, and the machining efficiency is not high.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a clamping tool for machining an oil ring groove of a bearing body, wherein the tool fixes the bearing body by limiting the degree of freedom of the bearing body without applying an excessive pressing force, so that not only is the product prevented from deforming due to pressing, but also the bearing body is prevented from moving which is not beneficial to machining by clamping, and the tool can realize multi-station machining and simultaneously machine a plurality of bearing bodies with the same specification or machine bearing bodies with different specifications.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a clamping frock for bearing body oil ring groove processing, includes the workstation and installs baffle, at least one mobilizable station on the workstation, and the bearing body of treating processing is placed and is compressed tightly between baffle and a station, and the outside curved surface of station contact and compression bearing body, the station with the face of bearing body contact be the V-arrangement.

As a further improvement of the above technical solution:

the station includes the locating piece, and the locating piece is portable on the workstation, and the locating piece is equipped with the V-arrangement opening, during the use V-arrangement opening contact bearing body's lateral surface.

The station still includes fixing base and regulating block, and fixing base, regulating block and locating piece are arranged in proper order, and fixing base fixed mounting is on the workstation, and the one end inclined plane cooperation of one end of regulating block and fixing base, the other end of regulating block and the one end inclined plane cooperation of locating piece, regulating block can reciprocate.

The station further comprises a first bolt and a first nut, a through hole is formed in the middle of the adjusting block, the bolt penetrates through the through hole, the upper end of the bolt is in threaded connection with the first nut, and the lower end of the bolt is tightly pressed on the workbench.

The station also comprises a pressing plate assembly used for contacting and pressing the end face of the bearing body, and the pressing plate assembly is installed on the positioning block.

The pressing plate component comprises a pressing plate, a screw rod and a second nut, one end of the screw rod is fixedly arranged on the positioning block, the other end of the screw rod is suspended upwards, the pressing plate is sleeved on the screw rod and can move along the screw rod, and the second nut is screwed on the upper end of the screw rod.

The pressing plate assembly further comprises a guide rod, the guide rod is fixedly installed on the positioning block, the guide rod and the screw rod are arranged in parallel at intervals, and the pressing plate is sleeved on the guide rod and the screw rod simultaneously.

When a plurality of stations are arranged on the workbench, the opening angle of the V-shaped opening of the positioning block of each station is different.

At least one rail is arranged on the workbench at intervals in parallel, and the positioning block of each station moves along one rail.

The baffle is perpendicular to the track.

The invention has the beneficial effects that: the tool fixes the bearing body by limiting the freedom degree of the bearing body without applying an excessive compression force, so that the deformation of a product due to compression is avoided, the clamping of the bearing body is realized, the movement which is not beneficial to processing is prevented, the multi-station tool can realize multi-station processing, a plurality of bearing bodies with the same specification or processing of bearing bodies with different specifications are simultaneously carried out, the tool is reasonable and simple in structure, safe and reliable, low in cost, capable of guaranteeing the processing quality of the bearing body and improving the production efficiency.

Drawings

Fig. 1 is a schematic view of a bearing body according to an embodiment of the present invention.

Fig. 2 is a schematic view of another perspective structure of a bearing body according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of a bearing body according to an embodiment of the present invention.

Fig. 4 is a schematic view of tangential entry during machining of a cutting disk milling cutter in accordance with an embodiment of the present invention.

Fig. 5 is a schematic view of a cutting disk milling cutter machining in accordance with an embodiment of the present invention.

Fig. 6 is a schematic view of tangential tool extraction during machining of a cutting disk milling cutter according to an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The utility model provides a clamping frock for processing of bearing body oil ring groove, as shown in fig. 1 ~ 6, includes workstation 1 and installs baffle 3, at least one mobilizable station on workstation 1, and the bearing body 4 of treating processing is placed and is compressed tightly between baffle 3 and a station.

At least one rail 5 is arranged on the working table 1 at intervals in parallel, and each working station can move along one rail 5.

The station comprises a fixed seat 21, an adjusting block 22, a positioning block 23, a pressure plate assembly 24, a bolt and a first nut. The fixed seat 21, the adjusting block 22 and the positioning block 23 are arranged in sequence.

The fixed seat 21 is fixedly arranged on the workbench 1. The positioning block 23 is supported on the table 1, and the positioning block 23 is movable on the table 1. Specifically, the bottom of the positioning block 23 is provided with a guide block which is slidably or rollably arranged on the rail 5, so that the positioning block 23 linearly moves along the rail 5, and the movement of the positioning block 23 is smoother.

The adjusting block 22 is located between the fixing seat 21 and the positioning block 23, one end of the adjusting block 22 is matched with one inclined surface of the fixing seat 21, and the other end of the adjusting block 22 is matched with one inclined surface of the positioning block 23. Specifically, one end surface of the fixing seat 21 close to the adjusting block 22 is an inclined surface inclined downward, one end surface of the positioning block 23 close to the adjusting block 22 is an inclined surface inclined upward, and two end surfaces of the adjusting block 22 respectively contact the inclined surface of the fixing seat 21 and the inclined surface of the positioning block 23. The adjusting block 22 can move up and down, preferably, the adjusting block 22 is a trapezoidal block, and the small end of the trapezoidal block faces downwards and the big end of the trapezoidal block faces upwards. The middle part of regulating block 22 is equipped with the through-hole, through-hole perpendicular to workstation 1, the bolt passes the through-hole, the upper end and the nut spiro union of bolt, the lower extreme of bolt compresses tightly on workstation 1.

Based on the above structure, the two end surfaces of the adjusting block 22 are respectively kept attached to the fixed base 21 and the positioning block 23. The adjusting block 22 is pressed downwards, so that when the adjusting block 22 moves downwards, the adjusting block 22 pushes the positioning block 23 to move towards a direction away from the fixed seat 21. The adjustment block 22 may be locked in a fixed position by locking the first nut and bolt. After the first nut and the first bolt are loosened, the positioning block 23 can be returned, that is, the positioning block 23 moves towards the direction close to the fixed seat 21, and at the moment, the adjusting block 22 moves upwards. The return of the positioning block 23 can be achieved by providing a return spring or manually adjusted by hand.

The positioning block 23 contacts and presses the outer curved surface of the bearing body 4, a V-shaped opening is formed in one end, far away from the adjusting block 22, of the positioning block 23, or the V-shaped opening is formed by two intersecting V-shaped planes, and the plane where the V-shape is located is parallel to the workbench 1. When in use, the V-shaped opening contacts the outer curved surface of the bearing body 4, in other words, the positioning block 23 and the bearing body 4 have at least two contact points, and the two contact points are respectively located on two planes of the V-shaped opening.

When the opening angle of the V-shaped opening of the positioning block 23, or the included angle between two intersecting planes of the V-shaped opening, is different, the positioning block 23 is suitable for bearing bodies 4 with different outer diameters.

Preferably, when a plurality of stations are provided on the working table 1, the opening angle of the V-shaped opening of the positioning block 23 of each station may be the same or different. When the opening angles of the V-shaped openings of the positioning blocks 23 of a plurality of stations on the workbench 1 are the same, a plurality of bearing bodies 4 with the same outer diameter can be simultaneously processed; when the opening angles of the V-shaped openings of the positioning blocks 23 of the stations on the workbench 1 are different, each tool can be suitable for processing bearing bodies 4 with different specifications.

The pressure plate assembly 24 is used for contacting and pressing the end face of the bearing body 4, and the pressure plate assembly 24 is installed on the positioning block 23.

The pressing plate assembly 24 includes a pressing plate 241, a screw 242, a second nut 243 and a guide rod 244, wherein one end of the screw 242 is fixedly installed on the positioning block 23, and the other end of the screw is suspended upwards. The guide rod 244 is fixedly installed on the positioning block 23, and the guide rod 244 and the screw 242 are arranged in parallel and spaced apart. Preferably, the guide rod 244 and the screw 242 are perpendicular to the table 1.

The pressing plate 241 is sleeved on the guide rod 244 and the screw rod 242 at the same time, the pressing plate 241 is movable along the screw rod 242 and the guide rod 244, that is, at least two through holes are formed in the pressing plate 241 at intervals, and the screw rod 242 and the guide rod 244 respectively penetrate through the two through holes in the pressing plate 241. The second nut 243 is screwed on the upper end of the screw 242, and the outer diameter of the second nut 243 is larger than the width of the through hole on the pressure plate 241 through which the screw 242 passes, so that the second nut 243 can press the pressure plate 241 on the bearing body 4.

Baffle 3 and track 5 are perpendicular, and baffle 3 fixed mounting is on workstation 1. During operation, the bearing body 4 placed between the baffle 3 and the positioning block 23 is in an unassembled state, namely, the bearing body is a half of a complete bearing and is a semi-cylinder, and the baffle 3 is in contact with the splicing surfaces of the bearing body 4 and the other half of the bearing body 1, or is a section of the complete bearing passing through an axis.

The working process of the invention is as follows: and determining a selected station according to the shape and specification of the bearing body 4 to be machined, loosening the first bolt and the first nut, releasing the first bolt and the first nut from locking the adjusting block 22, enabling the positioning block 23 to return, namely moving along the track 5 towards the direction close to the fixed seat 21, and enabling the bearing body 4 to be lowered to the space between the positioning block 23 and the baffle 3.

The bearing body 4 is placed between the positioning block 23 and the baffle 3 on the workbench 1, so that the end face of the bearing body 4 is supported on the workbench 1, and the splicing surface of the bearing body 4 contacts the baffle 3.

Then the adjusting block 22 is pressed downwards, the adjusting block 22 pushes the positioning block 23 to move along the track 5, the moving direction is towards the baffle 3, the V-shaped opening of the positioning block 23 is enabled to contact and press the outer curved surface of the bearing body 4, meanwhile, the splicing surface of the bearing body 4 contacts the baffle 3, the first nut is locked on the adjusting block 22, the position of the adjusting block 22 is fixed, namely, the position of the positioning block 23 is fixed, therefore, the bearing body 4 is limited in the moving and rotating freedom degree on the plane of the workbench 1 through the positioning block 23 and the baffle 3, and meanwhile, the bearing body 4 is not subjected to large pressure and has no local stress.

Then, the position of the pressing plate 241 on the screw 242 is adjusted until the pressing plate 241 presses the upper end face of the bearing body 4, and then the nut 243 is locked, so that the pressing plate 241 is locked between the nut 243 and the bearing body 4, and the limitation of the freedom degree of the bearing body 4 in the direction perpendicular to the working table 1 is realized.

And (3) a cutting disc milling cutter 7 for processing the bearing body 4 enters along the tangential direction of the inner ring of the bearing body 4 for tangential processing, and the processed cutting disc enters and is tangentially discharged to obtain an oil ring groove 6 as shown in 4-6.

And finally, loosening the second nut 243 and the first nut, removing the pressure of the pressure plate 241 on the bearing body 4, simultaneously returning the positioning block 23, taking out the machined bearing body 4, putting in a new bearing body 4 to be machined, and repeating the steps.

The height of the baffle 3 is set to be appropriate so as not to interfere with the operation of the cutting disc cutter 7 and the operation of other components.

Finally, it must be said here that: the above embodiments are only used for further detailed description of the technical solutions of the present invention, and should not be understood as limiting the scope of the present invention, and the insubstantial modifications and adaptations made by those skilled in the art according to the above descriptions of the present invention are within the scope of the present invention.