CN114290228A - Honing head for machining slotted hole with key - Google Patents
Honing head for machining slotted hole with key Download PDFInfo
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- CN114290228A CN114290228A CN202210109664.6A CN202210109664A CN114290228A CN 114290228 A CN114290228 A CN 114290228A CN 202210109664 A CN202210109664 A CN 202210109664A CN 114290228 A CN114290228 A CN 114290228A
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- bistrique
- seat
- grinding
- head
- honing head
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Abstract
The invention discloses a honing head for processing a slotted hole with a key, which comprises a connecting body, a transition body and a grinding head seat which are coaxially connected in sequence, wherein a pushing assembly is arranged in the connecting body, a buffering assembly is arranged in the transition body, a grinding head assembly is arranged in the grinding head seat, and the pushing assembly is sequentially connected with the buffering assembly and the grinding head assembly and controls the grinding head assembly to act: the bistrique subassembly includes toper dabber and grinding sword, and the toper dabber sets up inside the bistrique seat, and the toper dabber is formed by continuous conical body fixed connection, and the less one end orientation of conical body keeps away from the one end of connector, sets up radially extended bistrique groove on the bistrique seat excircle, sets up flaky grinding sword in the bistrique groove, grinding sword inside bistrique seat with conical body external surface contact and contact site set to the structure similar with conical body external surface cross-section for grinding sword can with conical body interact and coordinated movement together. The invention has the advantages of light weight, good rigidity, high stability, high efficiency and low noise.
Description
Technical Field
The invention relates to the field of motorcycle structures, in particular to a honing head for machining a slotted hole with a key.
Background
In the honing process, the existing honing tool is mainly used for processing a standard round hole or an opening hole; there is no special honing head for slotted holes. When the universal honing head is used for grinding the slotted hole with the key, on one hand, the cutter clamping phenomenon can occur, and on the other hand, the abrasion blade is too fast to wear because the key slot repeatedly impacts the grinding blade, even the grinding blade is cracked, the grinding blade needs to be frequently replaced, and the working efficiency is greatly reduced. Therefore, a honing head with a key slot hole is needed.
Disclosure of Invention
In order to overcome the defect that the universal honing head in the prior art cannot process the slotted hole with the key, the invention provides the honing head for processing the slotted hole with the key, which can not clamp a cutter and can not frequently replace a grinding edge.
The invention is realized by the following technical scheme:
the utility model provides a honing head of processing area key slot hole, includes connector, transition body and bistrique seat that coaxial coupling set up in proper order, set up the promotion subassembly in the connector, set up the buffering subassembly in the transition body, set up the bistrique subassembly in the bistrique seat, the promotion subassembly is connected and is controlled the bistrique subassembly action with buffering subassembly and bistrique subassembly in proper order: the bistrique subassembly includes toper dabber and grinding sword, the toper dabber sets up inside the bistrique seat, the toper dabber is formed by continuous conical body fixed connection, the less one end orientation of conical body keeps away from the one end of connector, radially extended bistrique groove has been seted up on the bistrique seat excircle, the bistrique inslot sets up flaky grinding sword, the grinding sword inside the bistrique seat with conical body surface contact and contact site set to with the structure that conical body surface cross-section is imitative makes the grinding sword can with conical body interact and coordinated movement together.
The pushing assembly comprises a pushing shaft, an inner shaft and a ball screw, the pushing shaft is screwed in the connecting body through threads and is far away from one end of the grinding head seat, the pushing shaft is provided with a feeding screw towards the direction of the grinding head seat, the feeding screw is screwed in the inner shaft, the inner shaft is arranged in the connecting body in a sliding mode, the other end of the inner shaft is close to the ball head portion of the ball screw, and the ball screw is arranged in the connecting body in a sliding mode; the other end of the ball-head screw rod extends into the transition body and penetrates through the transition body to be fixedly connected with the conical core shaft.
Furthermore, a positioning plate is fixedly arranged at one end, close to the connecting body, of the transition body, the ball-head screw penetrates through the center of the positioning plate and can axially move, and a return spring is arranged outside the ball-head screw and between the positioning plate and the conical core shaft.
Further, the buffering assembly further comprises a spring gasket arranged at the joint of the ball-head screw and the conical core shaft.
Further, the radial section of the grinding edge is T-shaped.
Furthermore, the position that promotes the axle and be connected with the feed screw rod is equipped with the copper sheathing, the connector outer wall that the copper sheathing corresponds is provided with holding screw.
Furthermore, a limiting groove is formed in one side of the inner shaft, and a limiting screw is arranged outside the connecting body corresponding to the limiting groove.
Furthermore, a guide ring is arranged at one end, close to the transition body, of the connecting body, and the ball head screw rod is fixed through the guide ring.
Furthermore, one end of the connecting body, which is far away from the grinding head seat, is positioned on the outer side of the pushing assembly and is also provided with a threaded connecting part.
Further, an inner hexagonal hole is formed in one end, close to the threaded connection portion, of the pushing shaft.
Compared with the prior art, the grinding edge is movably arranged on the grinding head, when the grinding edge is abraded, the extension amount of the grinding edge can be adjusted through the pushing assembly, and efficiency reduction and cost loss caused by frequent replacement of the grinding edge are avoided; meanwhile, the detachable grinding edge which is arranged into a sheet shape is replaced by a grinding edge with the width larger than the width of the key slot hole according to the requirement in use, so that the cutter clamping can be avoided; compared with the prior similar honing tool, the honing tool has light weight and good rigidity, and is more beneficial to the clamping and the dismounting of an operator to the honing tool; in the rotary feeding process of the honing head, the honing head has high stability, high efficiency and low noise. When the diameter phi 38 mm-phi 52mm of the key groove is processed, the requirements of dimensional accuracy H6-H8, roundness 0.02mm and roughness a0.2-Ra0.4 can be met, and the method is very suitable for interrupted honing processing.
Drawings
Fig. 1 is a schematic cross-sectional view illustrating a honing head for processing a keyhole according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1;
fig. 3 is a schematic front view illustrating a structure of a grinding edge of an embodiment of a honing head for processing a keyhole according to the present invention.
The reference numbers are as follows:
1. a linker; 2. a transition body; 4. a burr base; 5. a tapered mandrel; 6. grinding the edge; 7. a grinding head groove; 8. a zinc-aluminum alloy base; 9. -oilstone; 10. pushing the shaft; 11. an inner shaft; 12. a ball head screw; 13. a feed screw; 14. positioning a plate; 15. a return spring; 16. a spring washer; 17. a copper sleeve; 18. tightening the screw; 19. a limit screw; 20. a limiting groove; 21. a guide ring; 22. a threaded connection; 23. and (4) a hexagonal hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, a honing head of processing area keyway, including connector 1, transition body 2 and bistrique seat 4 that coaxial coupling set up in proper order, set up in the connector 1 and promote the subassembly, set up the buffering subassembly in the transition body 2, set up the bistrique subassembly in the bistrique seat 4, promote the subassembly and be connected and control the bistrique subassembly action with buffering subassembly and bistrique subassembly in proper order: the bistrique subassembly includes toper dabber 5 and grinding sword 6, and toper dabber 5 sets up inside bistrique seat 4, and toper dabber 5 is formed by continuous conical body fixed connection, and the less one end orientation of conical body keeps away from the one end of connector 1, sets up radially extending's bistrique groove 7 on bistrique seat 4 excircle, sets up flaky grinding sword 6 in bistrique groove 7, grinding sword 6 in bistrique seat 4 inside with conical body surface contact and contact site set to with the structure that conical body surface cross-section is imitative, like figure 3 for grinding sword 6 can be with conical body interact and coordinated movement together.
In a preferred embodiment of the present invention, as shown in fig. 2, the radial cross section of the grinding head seat 4 is T-shaped, the T-shaped cross section is made of large arc zinc-aluminum alloy by die casting to form a zinc-aluminum alloy seat 8, the longitudinal surface is made of 45# steel, two grooves are formed in the middle of the zinc-aluminum alloy seat 8 for embedding grinding knives, and the grinding knives are generally made of oilstones 9. Because the zinc-aluminum alloy is softer, the zinc-aluminum alloy can be synchronously worn along with the oilstone 9, and when the honing tool is used, the surface of the zinc-aluminum alloy is larger than the width of the key slot hole as required, and can support the oilstone 9 to smoothly pass through the open hole, so that the honing process of key slot hole workpieces is realized.
In a preferred embodiment of the present invention, as shown in fig. 1, the pushing assembly includes a pushing shaft 10, an inner shaft 11 and a ball screw 12, the pushing shaft 10 is screwed inside the connecting body 1 through a thread at one end far from the grinding head seat 4, the pushing shaft 10 is provided with a feed screw 13 toward the direction of the grinding head seat 4, the feed screw 13 is screwed inside the inner shaft 11, the inner shaft 11 is slidably disposed inside the connecting body 1, the other end of the inner shaft 11 is close to the ball head of the ball screw 12, and the ball screw 12 is slidably disposed inside the connecting body 1; the other end of the ball head screw rod 12 extends into the transition body 2 and passes through the transition body 2 to be fixedly connected with the conical core shaft 5. When the grinding edge 6 is worn, the pushing shaft 10 is adjusted to push the feeding screw 13, the feeding screw 13 drives the conical core shaft 5, and the conical core shaft 5 moves to the right, so that the grinding edge 6 is pushed out.
In a preferred embodiment of the present invention, as shown in fig. 1, a positioning plate 14 is fixedly disposed at one end of the transition body 2 close to the connecting body 1, a ball-head screw 12 penetrates through the center of the positioning plate 14 and can move axially, a return spring 15 is disposed outside the ball-head screw 12, and the return spring 15 and the positioning plate 14 form a buffer assembly. The reset spring 15 has two forms, one end is close to the locating plate 14, the other end is fixed on the ball head screw 12, when the grinding edge 6 is impacted during grinding, the conical core shaft 5 can be extruded, the conical core shaft 5 moves leftwards to drive the ball head screw 12, the reset spring 15 can be extruded at the moment, and after the impact disappears, the reset spring 15 drives the ball head screw 12 to reset the grinding edge 6, so that a buffering effect is achieved; the other end of the grinding blade is fixed at the tail of the conical mandrel 5, the other end of the grinding blade is fixed on the ball-head screw 12, and the conical mandrel 5 can be pulled, so that the grinding blade 6 is prevented from being squeezed into the key groove by the conical mandrel 5 to cause clamping when encountering the key groove after being excessively worn.
In a preferred embodiment of the present invention, as shown in fig. 1, the cushion assembly further comprises a spring washer 16 disposed at the junction of the ball screw 12 and the tapered spindle 5. The spring washer 16 may be used to hold the spring against damage to the tapered spindle 5 caused by repeated rubbing of the return spring 15
In a preferred embodiment of the present invention, as shown in fig. 1, a copper sleeve 17 is sleeved at a position where the pushing shaft 10 is connected with the feed screw 13, and a set screw 18 is arranged on the outer wall of the connecting body 1 corresponding to the copper sleeve 17. After the pushing shaft 10 is adjusted to enable the grinding edge 6 to be in a proper position, the pushing shaft 10 can be locked, and the pushing shaft 10 is prevented from moving due to impact.
In a preferred embodiment of the present invention, as shown in fig. 1, a limiting groove 20 is formed at one side of the inner shaft 11, a limiting screw 19 is disposed outside the connecting body 1 corresponding to the limiting groove 20, and the limiting screw 19 and the limiting groove 20 cooperate to limit a moving limit position of the inner shaft 11, so as to prevent the pushing shaft 10 from being excessively adjusted.
In a preferred embodiment of the present invention, as shown in fig. 1, a guide ring 21 is disposed at one end of the connecting body 1 close to the transition body 2, the ball-end screw 12 is fixed by the guide ring 21, and the guide ring 21 can ensure the coaxiality of the ball-end screw 12.
In a preferred embodiment of the present invention, as shown in fig. 1, one end of the connecting body 1, which is far away from the head base 4, is located at the outer side of the pushing assembly, and is further provided with a threaded connection portion 22 for connecting with a driving assembly of the honing head.
In a preferred embodiment of the present invention, as shown in fig. 1, an inner hexagonal hole 23 is formed at one end of the push shaft 10 near the threaded connection portion 22 to facilitate adjustment of the push shaft 10.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a honing head of processing key slot hole, its characterized in that, including connector, transition body and the bistrique seat of coaxial coupling setting in proper order, set up the promotion subassembly in the connector, set up the buffering subassembly in the transition, set up the bistrique subassembly in the bistrique seat, promote the subassembly and be connected and control bistrique subassembly action with buffering subassembly and bistrique subassembly in proper order: the bistrique subassembly includes toper dabber and grinding sword, the toper dabber sets up inside the bistrique seat, the toper dabber is formed by continuous conical body fixed connection, the less one end orientation of conical body keeps away from the one end of connector, radially extended bistrique groove has been seted up on the bistrique seat excircle, the bistrique inslot sets up flaky grinding sword, the grinding sword inside the bistrique seat with conical body surface contact and contact site set to with the structure that conical body surface cross-section is imitative makes the grinding sword can with conical body interact and coordinated movement together.
2. The honing head with a keyway according to claim 1, wherein the pushing assembly comprises a pushing shaft, an inner shaft and a ball screw, the pushing shaft is screwed inside the connecting body through threads and is far from one end of the honing head seat, the pushing shaft is provided with a feed screw towards the direction of the honing head seat, the feed screw is screwed inside the inner shaft, the inner shaft is slidably arranged inside the connecting body, the other end of the inner shaft is close to a ball head part of the ball screw, and the ball screw is slidably arranged inside the connecting body; the other end of the ball-head screw rod extends into the transition body and penetrates through the transition body to be fixedly connected with the conical core shaft.
3. The honing head for machining a splined hole of claim 2, wherein a positioning plate is fixedly disposed at one end of the transition body near the connecting body, the ball screw penetrates through the center of the positioning plate and can move axially, and a return spring is disposed outside the ball screw between the positioning plate and the tapered mandrel.
4. The honing head for machining a splined bore according to claim 3, wherein said bumper assembly further comprises a spring washer disposed at the junction of said ball screw and said tapered mandrel.
5. The honing head for machining a splined bore according to claim 1, wherein said radial cross-section of the honing blade comprises a T-shaped grinding seat, and oilstones are embedded in the grinding seat.
6. The honing head for machining a slotted hole with a key according to claim 2, wherein a copper sleeve is sleeved on a position where the pushing shaft is connected with the feed screw, and a set screw is arranged on an outer wall of a connecting body corresponding to the copper sleeve.
7. The honing head for machining a slotted hole with a key according to claim 2, wherein a limiting groove is formed in one side of the inner shaft, and a limiting screw is arranged outside a connecting body corresponding to the limiting groove.
8. The honing head for machining a slotted key hole according to claim 1, wherein a guide ring is disposed at an end of the connecting body adjacent to the transition body, and the ball-head screw is fixed by the guide ring.
9. The honing head for machining a slotted hole with a key according to claim 1, wherein the end of the connecting body away from the head base is further provided with a threaded connection part at the outer side of the pushing assembly.
10. The honing head for machining a slotted key hole according to claim 1, wherein the pushing shaft is provided with an inner hexagonal hole at an end thereof adjacent to the threaded connection portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210109664.6A CN114290228A (en) | 2022-01-29 | 2022-01-29 | Honing head for machining slotted hole with key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210109664.6A CN114290228A (en) | 2022-01-29 | 2022-01-29 | Honing head for machining slotted hole with key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114290228A true CN114290228A (en) | 2022-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210109664.6A Pending CN114290228A (en) | 2022-01-29 | 2022-01-29 | Honing head for machining slotted hole with key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114290228A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115256209A (en) * | 2022-08-03 | 2022-11-01 | 常州凯瑞莱精密工具有限公司 | Honing method for inner hole of workpiece with open slot |
-
2022
- 2022-01-29 CN CN202210109664.6A patent/CN114290228A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115256209A (en) * | 2022-08-03 | 2022-11-01 | 常州凯瑞莱精密工具有限公司 | Honing method for inner hole of workpiece with open slot |
| CN115256209B (en) * | 2022-08-03 | 2024-01-05 | 常州凯瑞莱精密工具有限公司 | Honing method for inner hole of workpiece with open slot |
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