CN209811344U - Key slot pulling device - Google Patents
Key slot pulling device Download PDFInfo
- Publication number
- CN209811344U CN209811344U CN201821891376.6U CN201821891376U CN209811344U CN 209811344 U CN209811344 U CN 209811344U CN 201821891376 U CN201821891376 U CN 201821891376U CN 209811344 U CN209811344 U CN 209811344U
- Authority
- CN
- China
- Prior art keywords
- broach
- uide bushing
- groove
- spring pin
- plectrum
- 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.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Abstract
The utility model discloses a draw keyway device, including uide bushing and broach, the broach includes handle of a knife and cutter arbor, is provided with the draw-in groove on the handle of a knife, evenly is provided with the sword tooth on the cutter arbor, forms the tool withdrawal groove between the adjacent sword tooth, is provided with the guide way that can let the broach pass in the uide bushing, still including setting up at the uide bushing side can be for the uide bushing gliding automatic locking device of same level, automatic locking includes the base, is provided with two plectrums and two spring pin axles that are the V type and arrange on the base, plectrum one end is articulated with the base, and the other end is connected with the spring pin axle, and the spring pin axle can drive the plectrum rotatory towards one side of uide bushing, the utility model discloses simple structure, convenient operation, automatic locking device can accomplish the one-way spacing of broach automatically, has improved the degree of automation.
Description
Technical Field
The utility model belongs to the technical field of mechanical equipment processing technique and specifically relates to a draw keyway device.
Background
The key slot is a key slot formed in a shaft or bore to receive a key for transmitting torque. The traditional machining of the key slot is generally completed by a slotting machine, and the key slot machined by the slotting machine has the following defects: the processing speed is slow, the processing precision is not high, and the error is large.
Among the prior art, chinese patent CN207746480U discloses a draw keyway device, including the uide bushing that has the through-hole, the broach install in the through-hole and can the through-hole internal pulling, the uide bushing is in the bottom surface of through-hole has the mounting groove, it has the gasket to inlay in the mounting groove, the upper surface height of gasket is higher than the bottom surface height of through-hole, the hardness of gasket is higher than the hardness of uide bushing. However, the device has a single function, and does not consider the fixing mode of the broach, the discharge of scrap iron and the strength of the upper cutter teeth of the machine broach, so that the broach has the advantages of short service life, low automation degree, low universality and serious broach abrasion.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a key slot pulling device capable of being installed on a common machine tool is provided.
The utility model adopts the technical proposal that: broach keyway device, including uide bushing and broach, the broach includes handle of a knife and cutter arbor, is provided with the draw-in groove on the handle of a knife, evenly is provided with the sword tooth on the cutter arbor, forms the tool withdrawal groove between the adjacent sword tooth, is provided with the guide way that can let the broach pass in the uide bushing, still including setting up at the uide bushing side can be for the uide bushing at the gliding automatic locking device of same level, automatic locking includes the base, is provided with two plectrums and two spring pin axles that are the V type and arrange on the base, plectrum one end is articulated with the base, and the other end is connected with the spring pin axle, and the spring pin axle can drive the plectrum rotatory. The broach stretches to the automatic locking device, and the broach extrudes the plectrum, and the plectrum is rotatory around the base, extrudees spring pin axle through the plectrum to make the broach pass two plectrums, treat that the draw-in groove of broach passes the plectrum after, spring pin axle resets, spring pin axle extrudes the plectrum, but the plectrum chucking is in the draw-in groove of broach, can restrict the broach towards one side removal of uide bushing. The utility model has the advantages of being simple in structure and convenient in operation, automatic locking device can accomplish the one-way spacing of broach automatically, has improved the degree of automation of equipment, has improved production efficiency.
Furthermore, the height of the cutter teeth gradually rises in the direction away from the cutter handle, so that the broaching tool can slowly process the key groove, the key groove is processed more smoothly, the abrasion of the broaching tool is reduced, and the service life of the broaching tool is prolonged.
Further, the tool withdrawal groove is U-shaped, and the included angle between the tool teeth and the vertical direction is as follows: 15 degrees to 45 degrees, the U-shaped tool withdrawal groove can strengthen the cutter teeth, so that the cutter teeth are more stable; the included angle between the cutter teeth and the vertical direction is as follows: 15-45 degrees, so that the tool withdrawal groove can discharge the processed scrap iron more conveniently, and the abrasion of the broach is reduced.
Further, the guide way is internally provided with an adjusting device, the adjusting device is at least one adjusting pad arranged in the guide way, and the height of the broach can be adjusted by the adjusting pad, so that workpieces with different sizes and key grooves with different depths are met, and the universality of the device is improved.
The utility model has the advantages that:
1. the dynamic locking device of the utility model can automatically complete the one-way spacing of the broach, improve the automation degree of the equipment, improve the production efficiency, and has simple structure and convenient operation;
2. the U-shaped tool withdrawal groove can strengthen the cutter teeth, so that the cutter teeth are more stable; the included angle between the cutter teeth and the vertical direction is as follows: 15-45 degrees, so that the tool withdrawal groove can discharge the processed scrap iron more conveniently, and the abrasion of the broach is reduced;
3. the height of the broach can be adjusted by the adjusting pad, so that workpieces of different sizes and key grooves of different depths are met, and the universality of the device is improved.
Drawings
Fig. 1 is a front view of the structure diagram of the present invention.
Fig. 2 is a right side view of fig. 1.
Fig. 3 is a schematic structural view of the broach according to the present invention.
Fig. 4 is a top view of fig. 3.
Labeled as: 1. a guide sleeve; 2. broaching; 21. a knife handle; 22. a cutter bar; 3. a card slot; 4. cutter teeth; 5. a tool withdrawal groove; 6. a guide groove; 7. a base; 8. a shifting sheet; 9. a spring pin; 10. an adjustment pad; alpha, the included angle between the cutter teeth and the vertical direction.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1-4, the key slot broaching device of the present invention comprises a guide sleeve 1 and a broach 2, wherein the broach 2 comprises a handle 21 and a cutter bar 22, the handle 21 is provided with a clamping groove 3, the cutter bar 22 is uniformly provided with cutter teeth 4, a tool withdrawal groove 5 is formed between adjacent cutter teeth 4, a guide groove 6 for the broach 2 to pass is provided in the guide sleeve 1, the key slot device further comprises an automatic locking device which is arranged beside the guide sleeve 1 and can slide in the same horizontal direction relative to the guide sleeve 1, the automatic locking device comprises a base 7, two shifting pieces 8 arranged in a V shape and two spring pin shafts 9 are provided on the base 7, one end of each shifting piece 8 is hinged with the base 7, the other end of each shifting piece is connected with the spring pin shaft 9, and the spring pin shaft 9 can drive the shifting piece 8 to rotate towards one side of; the height of the cutter teeth 4 is gradually increased in the direction away from the cutter handle 21; the tool withdrawal groove 5 is U-shaped, and the included angle alpha between the tool teeth 4 and the vertical direction is as follows: 30 degrees; an adjusting device is arranged in the guide groove 6, and the adjusting device is three adjusting pads 10 arranged in the guide groove 6.
When a key groove needs to be machined on a workpiece, the guide sleeve 1 and the locking device are firstly installed on a machine tool (not shown in the figure), the guide sleeve 1 is fixedly connected with the machine tool, and the base 7 is connected with a power device of the machine tool. A workpiece to be machined is installed on the guide sleeve 1, an inner hole of the workpiece is communicated with the guide groove 6, a proper adjusting pad 10 is selected according to the depth of a key groove to be machined, and then the tool shank 21 of the broaching tool 2 sequentially penetrates through the inner hole of the workpiece, the guide groove 6 and the automatic locking device. When broach 2 stretches to automatic locking device, broach 2 extrudes plectrum 8, and plectrum 8 is rotatory around base 7, extrudees spring pin axle 9 through plectrum 8 to make broach 2 pass two adjacent clearance departments of plectrum 8, treat that draw-in groove 3 of broach 2 passes behind plectrum 8, spring pin axle 9 resets, and spring pin axle 9 extrudes plectrum 8, but plectrum 8 chucking is in draw-in groove 3 of broach. The power device drives the base 7 to be gradually far away from the workpiece, and the broach 2 can process a key groove in an inner hole of the workpiece. The utility model discloses a move locking device can accomplish the one-way spacing of broach automatically, improve the degree of automation of equipment, improve production efficiency, and construct simple, convenient operation.
Claims (4)
1. Draw keyway device, including uide bushing (1) and broach (2), broach (2) are provided with draw-in groove (3) including handle of a knife (21) and cutter arbor (22) on handle of a knife (21), evenly are provided with sword tooth (4) on cutter arbor (22), form tool withdrawal groove (5) between adjacent sword tooth (4), are provided with guide way (6) that can let broach (2) pass in uide bushing (1), its characterized in that: still including setting up at uide bushing (1) side can be for uide bushing (1) at the gliding automatic locking device of same level, automatic locking includes base (7), is provided with two plectrum (8) and two spring pin axle (9) that are the V type and arrange on base (7), plectrum (8) one end is articulated with base (7), and the other end is connected with spring pin axle (9), and spring pin axle (9) can drive plectrum (8) and rotate towards one side of uide bushing (1).
2. The key slot apparatus of claim 1, wherein: the height of the cutter teeth (4) is gradually increased in the direction away from the cutter handle (21).
3. The key slot apparatus of claim 1, wherein: the tool withdrawal groove (5) is U-shaped, and the included angle (alpha) between the tool teeth (4) and the vertical direction is as follows: 15 to 45 degrees.
4. The key slot apparatus of claim 1, wherein: an adjusting device is arranged in the guide groove (6), and the adjusting device is at least one adjusting pad (10) arranged in the guide groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891376.6U CN209811344U (en) | 2018-11-16 | 2018-11-16 | Key slot pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821891376.6U CN209811344U (en) | 2018-11-16 | 2018-11-16 | Key slot pulling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209811344U true CN209811344U (en) | 2019-12-20 |
Family
ID=68868547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821891376.6U Active CN209811344U (en) | 2018-11-16 | 2018-11-16 | Key slot pulling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209811344U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161102A (en) * | 2021-12-31 | 2022-03-11 | 重庆市星极齿轮有限责任公司 | Gear slotting and perforating process |
-
2018
- 2018-11-16 CN CN201821891376.6U patent/CN209811344U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161102A (en) * | 2021-12-31 | 2022-03-11 | 重庆市星极齿轮有限责任公司 | Gear slotting and perforating process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Pulling key groove device Granted publication date: 20191220 Pledgee: China Postal Savings Bank Co.,Ltd. Luzhou Jiangyang District Branch Pledgor: SICHUAN HAIKE MACHINERY MANUFACTURE Co.,Ltd. Registration number: Y2024980008724 |