CN111618676A - Floating support applied to grinding machine - Google Patents

Floating support applied to grinding machine Download PDF

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Publication number
CN111618676A
CN111618676A CN202010522128.XA CN202010522128A CN111618676A CN 111618676 A CN111618676 A CN 111618676A CN 202010522128 A CN202010522128 A CN 202010522128A CN 111618676 A CN111618676 A CN 111618676A
Authority
CN
China
Prior art keywords
supporting
support
head
grinding machine
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010522128.XA
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Chinese (zh)
Inventor
林继龙
林继泉
冯秀雷
高君吉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Lan Yu Precision Bearing Manufacturing Co ltd
Original Assignee
Shandong Lan Yu Precision Bearing Manufacturing Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Lan Yu Precision Bearing Manufacturing Co ltd filed Critical Shandong Lan Yu Precision Bearing Manufacturing Co ltd
Priority to CN202010522128.XA priority Critical patent/CN111618676A/en
Publication of CN111618676A publication Critical patent/CN111618676A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/35Accessories
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B41/00Component parts such as frames, beds, carriages, headstocks
    • B24B41/06Work supports, e.g. adjustable steadies
    • B24B41/067Work supports, e.g. adjustable steadies radially supporting workpieces

Abstract

The invention discloses a floating support applied to a grinding machine, and relates to the technical field of bearing machining. The floating support comprises a first support component and a second support component, wherein the first support component is positioned below the part to be processed, the second support component is positioned on the left side or the right side of the part to be processed, and the first support component and the second support component have the same structure. The second supporting component comprises a supporting rod and a supporting head arranged at the inner end of the supporting rod, and the middle part of the supporting head is hinged with the inner end of the supporting rod. The inner side surface of the supporting head is symmetrically provided with supporting inclined surfaces about the central line of the supporting rod, and the two supporting inclined surfaces form a concave structure together. The supporting inclined plane is fixedly provided with a supporting block. The floating support can automatically find the machining center of a part, greatly improves the efficiency of equipment adjustment, shortens the adjustment time of the equipment, and has a good rounding effect.

Description

Floating support applied to grinding machine
Technical Field
The invention relates to the technical field of bearing machining, in particular to a floating support applied to a grinding machine.
Background
The positioning mode adopted by the grinding machine when grinding the outer circle of the part to be processed is shown in fig. 6 and 8. Specifically, the end face of the part 4 to be processed is pressed close to the magnetic pole 5 of the grinding machine through the attraction force of the magnetic pole 5, so that the axial fixation of the part 4 to be processed is realized, the radial fixation of the part 4 to be processed is realized by arranging two fixed supports 6 on the outer side of the part to be processed, and the excircle of the part 4 to be processed is ground through a grinding wheel after the axial fixation and the radial fixation are realized.
As shown in fig. 6 and 7, the conventional supports are fixed supports 6 of a straight rod type, the support blocks on the supports are fixed on the support rods by welding, and the support blocks are arranged obliquely relative to the support rods. When the device is installed, the supporting blocks of the two supports abut against the part 4 to be machined, and the supporting blocks and the excircle of the part to be machined are ensured to be in a tangent position relation. This requires adjustment of the support bevel angle to ensure a tangential positional relationship. Since the support is fixed, when the device is adjusted, the support needs to be adjusted continuously until the support is adjusted to a proper angle, and in the process, the optimal angle can not be found because one angle may need to be adjusted for a long time, and the skill requirement of an operator is very high.
In addition, the supporting head of the traditional support is made of hard alloy, the hard alloy can be worn after being used for a period of time, the process requirements cannot be met during product processing, and the hard alloy needs to be replaced because the surface roughness cannot meet the requirements after the hard alloy is worn and the product can be scratched during product processing, so that the product is unqualified. And the traditional support has the problem that the support head is welded, so that the replacement is labor-consuming and time-consuming.
Disclosure of Invention
Aiming at the problems, the invention provides the floating support applied to the grinding machine, the floating support can automatically find the machining center of the part, the efficiency of adjusting the equipment is greatly improved, the adjusting time of the equipment is shortened, and the rounding effect is good.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a floating bearing applied to a grinding machine comprises a first supporting component and a second supporting component, wherein the first supporting component is positioned below a part to be machined, the second supporting component is positioned on the left side or the right side of the part to be machined, and the first supporting component and the second supporting component have the same structure;
the second supporting component comprises a supporting rod and a supporting head arranged at the inner end of the supporting rod, and the middle part of the supporting head is hinged with the inner end of the supporting rod;
the inner side surface of the supporting head is symmetrically provided with supporting inclined surfaces about the central line of the supporting rod, and the two supporting inclined surfaces form a concave structure together;
the supporting inclined plane is fixedly provided with a supporting block.
Furthermore, a clamping groove with a trapezoidal cross section is formed in the supporting inclined surface, and the supporting block is arranged in the clamping groove and clamped and fixed through a first locking bolt.
Furthermore, a first expansion joint is arranged on the bottom surface of the clamping groove, the supporting head is divided into a supporting head body and a clamping part by the first expansion joint, and a first locking bolt for clamping the supporting block is arranged between the clamping part and the supporting head body.
Furthermore, a first expansion joint is arranged on the bottom surface of the clamping groove, the first expansion joint penetrates through the supporting head along the direction perpendicular to the bottom surface of the clamping groove, and two first locking bolts are arranged between the clamping part and the supporting head body.
Furthermore, a groove used for containing the supporting head is formed in the inner end face of the supporting rod, the width of the groove is larger than that of the supporting head, a second expansion joint is arranged on the bottom face of the groove, and a second locking bolt used for adjusting the width of the second expansion joint is arranged on the supporting rod.
Furthermore, a rigidity reduction seam is arranged on the outer side of the adjusting hole on the front side face or the rear side face of the supporting rod.
Further, the distance from the center line of the rigidity reduction seam to the inner end of the support rod is equal to the distance from the blind end of the second expansion joint to the inner end of the support rod.
Furthermore, the supporting block is made of ceramic materials or metal ceramics.
Furthermore, a tension spring is arranged between the supporting rod of the second supporting component and the upper end part of the supporting head, and in a free state, the supporting head of the second supporting component is in a lifting state.
The invention has the beneficial effects that:
1. the floating support can automatically find the machining center of a part, greatly improves the efficiency of equipment adjustment, shortens the adjustment time of the equipment, and has a good rounding effect.
2. The supporting block is replaced by a ceramic block from the original hard alloy, so that the wear resistance is better, the friction trace on the product can be effectively eliminated, and the processing precision of the product is improved.
3. When the supporting block is designed to be placed, in order to prevent the ceramic block from slipping, the placed groove is designed to be a trapezoidal groove, and meanwhile, a clamping structure is designed. Through the design, the product quality is improved, the supporting block is convenient to replace, and the product quality and the production efficiency are improved.
4. The adjusting mechanism capable of adjusting the clamping tightness is arranged at the joint between the supporting head and the supporting rod, so that on one hand, after the gap is generated due to abrasion, the supporting head generates axial movement, and on the other hand, the adjusting mechanism can also adapt to supporting heads of different specifications and models within a certain range.
5. The tension spring is arranged on the second supporting component on the left side or the right side of the part to be processed, so that the supporting head of the second supporting component is in a lifted state in a free state, and the part can be conveniently loaded.
6. The traditional supporting mode is only provided with two supporting points, the part to be processed (especially the part to be processed with a thin wall thickness) is easy to deform during processing, the supporting points are four, and the part to be processed is not easy to deform.
Drawings
FIG. 1 is a first schematic view of the floating support in an operating state;
FIG. 2 is a schematic structural view of a first floating support assembly;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a view taken along line A of FIG. 2;
FIG. 5 is a cross-sectional view of the support rod;
FIG. 6 is a second schematic view of the floating support in an operating state;
FIG. 7 is a schematic view of a conventional support in an operating state;
FIG. 8 is a schematic structural view of a conventional support;
FIG. 9 is a schematic view of axial positioning of a workpiece.
In the figure: 1-a first support member, the first support member,
2-second support element, 21-support bar, 211-clamping plate, 212-groove, 213-second expansion joint, 214-adjustment hole, 215-rigidity-cut-off joint, 22-support head, 221-support bevel, 222-clamping groove, 223-first expansion joint, 23-articulated shaft, 24-support block, 25-first locking bolt, 26-second locking bolt,
3-a tension spring is arranged at the lower part of the frame,
4-the part to be processed is processed,
5-the magnetic pole is arranged on the outer surface of the magnetic core,
6-fixing and supporting.
Detailed Description
Example one
For convenience of description, a direction extending in the axial direction of the part to be machined 4 will now be defined as a front-rear direction.
As shown in fig. 1, a floating bearing applied to a grinding machine includes a first supporting component 1 and a second supporting component 2, wherein the first supporting component 1 is located at the lower side of a part 4 to be machined, the second supporting component 2 is located at the left side or the right side of the part 4 to be machined, and the first supporting component 1 and the second supporting component 2 have the same structure. As a specific embodiment, the second supporting assembly 2 in this embodiment is disposed at the left side of the part to be processed 4.
Here, the structure of the second support member 2 will be described in detail by taking it as an example only.
As shown in fig. 2, the second supporting assembly 2 includes a supporting rod 21 and a supporting head 22 disposed at an inner end of the supporting rod 21 (an end close to the part 4 to be processed is an inner end), and the supporting head 22 and the supporting rod 21 together form a T-shaped structure, and a middle portion of the supporting head 22 is hinged to the inner end of the supporting rod 21.
As a specific embodiment, as shown in fig. 3 and 5, clamping plates 211 extending inward (inward is a side close to the part 4 to be processed) are respectively disposed on the front and rear sides (forward and backward directions along the axial direction of the part 4 to be processed) of the inner end surface of the support rod 21 on the inner end surface of the support rod 21, and the clamping plates 211 and the support rod 21 body together form a groove 212 for accommodating the support head 22. The outer end (the end far away from the part 4 to be processed is the outer end) of the supporting head 22 is positioned in the groove 212 and is hinged with the clamping plate 211 through a hinge shaft 23.
As shown in fig. 2, a support inclined plane 221 is respectively disposed on two sides of the support rod 21 on an inner side surface (a side close to the part 4 to be processed is an inner side) of the support head 22, the two support inclined planes 221 are symmetrically arranged about a center line of the support rod 21, and the two support inclined planes 221 together form an outwardly concave structure. The supporting block 24 is fixedly arranged on the supporting inclined plane 221.
Preferably, the supporting block 24 is made of a ceramic material or a cermet (e.g., a titanium carbonitride-based cermet), and the ceramic material or the cermet having higher hardness and better wear resistance can effectively scratch the supporting block 24, so that the processing quality of the workpiece surface is improved, and the roughness of the processed part surface is reduced.
Further, since the supporting block 24 directly contacts with the part 4 to be machined during machining, which belongs to a wearing part, the supporting block 24 needs to be replaced periodically. In order to facilitate the replacement of the supporting block 24, as shown in fig. 2 and 4, the supporting inclined surface 221 is provided with a clamping groove 222 having an isosceles trapezoid cross-sectional shape and penetrating the supporting head 22 in the front-rear direction. Accordingly, the projection of the supporting block 24 in the plane perpendicular to the front-rear direction is an isosceles trapezoid matching the shape of the clamping groove 222.
As shown in fig. 2, a first expansion joint 223 penetrating the support head 22 in the front-rear direction is provided on the bottom surface of the clamping groove 222, and the first expansion joint 223 divides the support head 22 into a support head 22 body and a clamping portion located outside the support head 22 body. A first locking bolt 25 is arranged between the clamping part and the supporting head 22 body, a threaded blind hole matched with the head part of the first locking bolt 25 is arranged on the supporting head 22 body, and a unthreaded hole used for accommodating the first locking bolt 25 is arranged on the clamping part. Thus, the width of the first expansion joint 223 can be changed by rotating the first locking bolt 25, so that the supporting block 24 can be clamped and loosened.
Preferably, a projected blind end of the first expansion joint 223 in a vertical plane perpendicular to the front-back direction is circular, and a diameter D of the projected blind end of the first expansion joint 223 in the vertical plane perpendicular to the front-back direction is greater than a width M of a projected open end of the first expansion joint 223 in the vertical plane perpendicular to the front-back direction. Preferably, the diameter D is 2 times the width M.
Further, since the included angle between the support head 22 and the support rod 21 is automatically adjusted according to the roundness of the part 4 to be machined during operation, the contact surface between the support head 22 and the clamping plate 211 of the support rod 21 is worn, and when the wear occurs to a certain extent, a gap occurs between the support head 22 and the clamping plate 211 of the support rod 21, so that the support head 22 moves axially during machining. In this case, the repair cannot be performed, and only the worn support head 22 or the worn support rod 21 can be replaced, or the support assembly can be directly replaced with a new one, which increases the use cost.
For this reason, as shown in fig. 3, the width P (dimension in the front-rear direction) of the groove 212 is larger than the width Q (dimension in the front-rear direction) of the support head 22. The bottom surface of the groove 212 is provided with a second expansion joint 213, the support rod 21 is provided with an adjusting hole 214 which penetrates through the support rod 21 along the front-back direction at a position corresponding to the second expansion joint 213, and the adjusting hole 214 is internally provided with a second locking bolt 26 for adjusting the width of the second expansion joint 213. The adjusting hole 214 is provided with an internal thread on the rear side of the second expansion joint 213 for matching with the end of the second locking bolt 26. The width of the second expansion joint 213 can be adjusted by turning the second locking bolt 26.
Thus, when a gap is formed between the support head 22 and the clamping plate 211 of the support rod 21 due to wear, and the support head 22 moves axially during machining, the support head 22 can be clamped again by rotating the second locking bolt 26.
Preferably, a projected blind end of the second expansion joint 213 in a vertical plane parallel to the front-rear direction is circular, and a projected blind end of the second expansion joint 213 in the vertical plane parallel to the front-rear direction has a diameter larger than a width of a projected open end of the second expansion joint 213 in the vertical plane parallel to the front-rear direction.
Further, since the support rod 21 has a large width (dimension in the front-rear direction) and high rigidity, and the tightness of the clamping between the support head 22 and the clamping plate 211 of the support rod 21 can be adjusted conveniently, as shown in fig. 5, a rigidity cut-off slit 215 is provided on the front side surface or the rear side surface of the support rod 21 on the outer side of the adjustment hole 214 (on the side away from the support head 22). As a specific embodiment, the rigidity cut-off slits 215 described in the present embodiment are provided on the rear side surface of the support bar 21.
Preferably, the distance from the center line of the stiffness-reduced slit 215 to the inner end of the support rod 21 is equal to the distance from the blind end of the second expansion joint 213 to the inner end of the support rod 21.
As shown in fig. 6, by adopting the above structure, even if the installation position of the first support assembly 1 and/or the second support assembly 2 deviates within a certain range when installing, namely the center line of the first support assembly 1 and/or the second support assembly 2 does not pass through the center of the part 4 to be processed, the support heads 22 of the first support assembly 1 and the second support assembly 2 can be automatically adjusted adaptively according to the actual situation. In the actual installation process, only the up-down direction and the left-right direction of the supporting component need to be adjusted, and the adjustment precision is not required to be too high.
Further, in order to facilitate the loading of the part 4 to be processed, as shown in fig. 1 and fig. 2, a tension spring 3 is disposed between the support rod 21 and the upper end of the support head 22 of the second support assembly 2, and in a free state (i.e., when the part 4 to be processed is loaded), the support head 22 of the second support assembly 2 is in a raised state, that is, a point of the inner side surface of the support head 22, which is located at the innermost side of the upper half portion, is located at the outer side of a point of the inner side surface of the support head 22, which is located at the innermost side.
Example two
The first expansion joint 223 penetrates the support head 22 along a direction perpendicular to the bottom surface of the clamping groove 222, that is, the support head 22 body and the clamping portion are in a split structure, and two first locking bolts 25 are arranged between the clamping portion and the support head 22 body. The rest of the structure is the same as the first embodiment.

Claims (9)

1. A floating support for a grinding machine, comprising: the machining tool comprises a first supporting component and a second supporting component, wherein the first supporting component is positioned below a part to be machined, the second supporting component is positioned on the left side or the right side of the part to be machined, and the first supporting component and the second supporting component are identical in structure;
the second supporting component comprises a supporting rod and a supporting head arranged at the inner end of the supporting rod, and the middle part of the supporting head is hinged with the inner end of the supporting rod;
the inner side surface of the supporting head is symmetrically provided with supporting inclined surfaces about the central line of the supporting rod, and the two supporting inclined surfaces form a concave structure together;
the supporting inclined plane is fixedly provided with a supporting block.
2. A floating support for a grinding machine as defined in claim 1 wherein: the supporting inclined plane is provided with a clamping groove with a trapezoidal section, and the supporting block is arranged in the clamping groove and is clamped and fixed through a first locking bolt.
3. A floating support for a grinding machine as defined in claim 2 wherein: the bottom surface of the clamping groove is provided with a first expansion joint, the first expansion joint divides the supporting head into a supporting head body and a clamping part, and a first locking bolt for clamping the supporting block is arranged between the clamping part and the supporting head body.
4. A floating support for a grinding machine as defined in claim 2 wherein: the bottom surface of the clamping groove is provided with a first expansion joint, the first expansion joint penetrates through the supporting head along the direction vertical to the bottom surface of the clamping groove, and two first locking bolts are arranged between the clamping part and the supporting head body.
5. A floating support for a grinding machine as defined in claim 1 wherein: the support rod is characterized in that a groove used for accommodating the support head is formed in the inner end face of the support rod, the width of the groove is larger than that of the support head, a second expansion joint is arranged on the bottom face of the groove, and a second locking bolt used for adjusting the width of the second expansion joint is arranged on the support rod.
6. A floating support for a grinding machine as defined in claim 5 wherein: and a rigid reduction seam is arranged on the front side surface or the rear side surface of the supporting rod and positioned outside the adjusting hole.
7. A floating support for a grinding machine as defined in claim 6 wherein: the distance from the central line of the rigidity reducing seam to the inner end of the supporting rod is equal to the distance from the blind end of the second expansion joint to the inner end of the supporting rod.
8. A floating support for a grinding machine as defined in claim 1 wherein: the supporting block is made of ceramic materials or metal ceramics.
9. A floating support for a grinding machine as defined in claim 1 wherein: and a tension spring is arranged between the supporting rod of the second supporting component and the upper end part of the supporting head, and the supporting head of the second supporting component is in a lifting state in a free state.
CN202010522128.XA 2020-06-10 2020-06-10 Floating support applied to grinding machine Pending CN111618676A (en)

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CN202010522128.XA CN111618676A (en) 2020-06-10 2020-06-10 Floating support applied to grinding machine

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CN202010522128.XA CN111618676A (en) 2020-06-10 2020-06-10 Floating support applied to grinding machine

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112975747A (en) * 2021-02-25 2021-06-18 中国航发哈尔滨轴承有限公司 Floating support structure for processing bearing
CN115139222A (en) * 2022-07-28 2022-10-04 武汉协和齿环有限公司 Conical ring high-precision grinding tool and equipment
CN115401543A (en) * 2022-08-25 2022-11-29 青岛高测科技股份有限公司 Grinding machine, control method and system thereof, equipment and computer readable storage medium

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112975747A (en) * 2021-02-25 2021-06-18 中国航发哈尔滨轴承有限公司 Floating support structure for processing bearing
CN115139222A (en) * 2022-07-28 2022-10-04 武汉协和齿环有限公司 Conical ring high-precision grinding tool and equipment
CN115401543A (en) * 2022-08-25 2022-11-29 青岛高测科技股份有限公司 Grinding machine, control method and system thereof, equipment and computer readable storage medium
CN115401543B (en) * 2022-08-25 2023-09-05 青岛高测科技股份有限公司 Grinding machine, control method and system thereof, equipment and computer readable storage medium

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Application publication date: 20200904