CN102962533B - Internal thread processing clamp and processing method thereof - Google Patents
Internal thread processing clamp and processing method thereof Download PDFInfo
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- CN102962533B CN102962533B CN201210448824.6A CN201210448824A CN102962533B CN 102962533 B CN102962533 B CN 102962533B CN 201210448824 A CN201210448824 A CN 201210448824A CN 102962533 B CN102962533 B CN 102962533B
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- internal thread
- drill
- knife bar
- thread machining
- machining fixture
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Abstract
The invention discloses an internal thread processing clamp and a processing method thereof, and the internal thread processing clamp which comprises a cutter bar, wherein a cutter bar cavity is opened formed inside the cutter bar; a jacket is installed inside the cutter bar cavity; the jacket is composed of a jacket head and a jacket body; the jacket head is located outside the cutter bar; the cutter bar cavity is sleeved inside the jacket body; a spring is arranged between the jacket head and the end face of the cutter bar; a tension springs is are arranged between the jacket head and the cutter bar cavity; a sliding groove is opened onformed in the cutter bar; and a sliding pin is arranged inside the sliding groove. The purpose of the invention is to provide the internal thread processing clamp and the processing method thereof; the internal thread processing clamp is simple in structure; the whole process of internal thread processing can be realized on a common numerically controlled lathe; the internal thread processing clamp and the processing method thereof has have the advantages that the production cost is reduced, the product quality is improved, and the labour intensity of operators is largely reduced, thereby effectively improving the work efficiency.
Description
Technical field
The present invention relates to a kind of internal thread machining fixture and processing method thereof.
Background technology
Bent axle is the core component of the internal combustion engine such as gasoline engine, diesel engine, is the power resources of automobile, diesel locomotive, generator etc.And Crankshaft Machining operation is many, required precision is high, and production line is badly in need of reform.Particularly crankshaft output end tapping internal thread, because the diameter of thread is little, quality requirement is high, is the bottleneck operation that superzapping production line normally circulates always.
Engine lathe is taken centre frame and is carried out manual operations, through centering, beat thread Pilot hole, tapping three road manufacturing procedure, and centering, beat thread Pilot hole, tapping relies on manual seat of wagging the tail.Shake that tailstock changes centre drill successively, drill bit, screw tap make the amount of labour very large to and fro, because accuracy of thread requires high, also very harsh to the technical requirement of operative employee, even experienced actuator also can cause quality fluctuation large because of human factor, be difficult to control product quality.The manual processing of former U.S. axle is because human factor often there will be screw thread pine, no-go gage two encloses above, the not first-class quality problems of screw thread effective length.
Centre numerically controlled lathe does not also take the precedent of centre frame processing.And centre numerically controlled lathe does not possess again the function of rigid tapping.
Summary of the invention
The object of the present invention is to provide a kind of internal thread machining fixture and processing method thereof, its internal thread machining clamp structure is simple, the whole process of internal thread machining can be realized on centre numerically controlled lathe, its processing method of internal thread machining fixture improves the quality of product while reducing production cost, greatly reduce the labour intensity of operator, thus effectively improve operating efficiency.
In order to reach above-mentioned purpose, the technical solution of the utility model is:
A kind of internal thread machining fixture, comprises knife bar, offers knife bar cavity in knife bar; Be provided with chuck in described knife bar cavity, chuck is made up of chuck head and jacket body; Described chuck head is positioned at outside knife bar, is socketed on knife bar cavity in jacket body; Between described chuck head and knife bar end face, spring is installed, between chuck head and knife bar cavity, extension spring is installed; Described knife bar offers sliding tray, in sliding tray, sliding pin is installed.
Two extension springs are installed between described chuck head and knife bar cavity.
Described extension spring and chuck head are connected by the first screw; Described extension spring and knife bar cavity are connected by the second screw.
A processing method for internal thread machining fixture, comprises the steps:
1) first on numerically controlled lathe, bent axle is installed, then cutter hub, fluted drill drill bushing, internal thread machining fixture are installed on Tool-rest of Numerical Control Lathe respectively, then difference mounting center drill bushing, lathe tool in cutter hub, then in the drill bushing of center, mounting center is bored, then in fluted drill drill bushing, fluted drill is installed, finally in internal thread machining fixture, screw tap is installed;
2), after described step 1 installs, first rotate cutter hub and make lathe tool aim at machining crankshafts, then by the chamfering of 45 degree, lathe tool car, then use lathe tool face work;
3), after the complete end face of described step 2 car, then move cutter hub and make centre drill aim at machining crankshafts, then use centre drill drill centers;
4) after described step 3 has bored centre bore, first rotate fluted drill drill bushing and make fluted drill aim at machining crankshafts, be then 26-32mm by the Twist Drill degree of depth, its speed of mainshaft is 400-650r/min, and per minute feeding is 60-120mm/min;
5) after described step 4 has bored degree of depth hole, first rotate internal thread machining fixture and make screw tap aim at machining crankshafts, be then 22-28mm by the tap tapping degree of depth, its speed of mainshaft is 100-300r/min, and often turning feeding is 1.0-1.1mm/r.
The lathe tool be arranged in described step 1 on cutter hub is 91o lathe tool.
The centre drill be arranged in described step 1 in the drill bushing of center is A4 centre drill.
The fluted drill be arranged in described step 1 in fluted drill drill bushing is the fluted drill of 8.4mm, and the Twist Drill degree of depth is 29mm, and its speed of mainshaft is 450-600r/min, and per minute feeding is 80-100mm/min.
The screw tap be arranged in described step 1 in internal thread machining fixture is 3/8-24UNF screw tap, and the tap tapping degree of depth is 25mm, and its speed of mainshaft is 150-250r/min, and often turning feeding is 1.058mm/r.
Beneficial effect of the present invention is: a kind of internal thread machining fixture provided by the invention and processing method thereof, its internal thread machining clamp structure is simple, because knife bar is connected the whole process enabling screw tap realize internal thread machining on centre numerically controlled lathe with the elasticity of chuck, its processing method of this internal thread machining fixture improves the quality of product while reducing production cost, greatly reduce the labour intensity of operator, thus effectively improve operating efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of internal thread machining fixture of the present invention;
Fig. 2 is the structural representation of the clamping lathe tool device after loading centre drill and lathe tool in the embodiment of the present invention;
Fig. 3 is the structural representation of the fluted drill clamping drill bushing after loading fluted drill in the embodiment of the present invention;
Fig. 4 is the structural representation of the internal thread machining fixture after loading screw tap in the embodiment of the present invention.
Specific embodiment
Embodiment 1
As shown in Figure 1, a kind of internal thread machining fixture of the present embodiment, comprises knife bar 1, offers knife bar cavity 2 in knife bar 1; Be provided with chuck 3 in described knife bar cavity 2, chuck 3 is made up of chuck head 10 and jacket body 11; Described chuck head 10 is positioned at outside knife bar 1, is socketed on knife bar cavity 2 in jacket body 11; Between described chuck head 10 and knife bar 1 end face, spring 4 is installed, two extension springs 6 are installed between chuck head 10 and knife bar cavity 2; Described knife bar 1 offers sliding tray 5, sliding pin 7 is installed in sliding tray 5.Described extension spring 6 is connected by the first screw 8 with chuck head 10.Described extension spring 6 is connected by the second screw 9 with knife bar cavity 2.
Can install the screw tap of different model in chuck head 10, extension spring 6 not only fixed by the first screw 8 be arranged in chuck head 10, also can fix screw tap.Knife bar 1 offers sliding tray 5, sliding pin 7 is installed in sliding tray 5.Sliding pin 7 by moving fixing with the position of two extension springs 6, thus makes chuck 3 move forward and backward.Between chuck head 10 and knife bar 1 end face, spring 4 is installed.In process, the power that spring 4 can provide screw tap to advance; When screw tap runs into powerful resistance, spring 4 compression can regulate screw tap by the fixed position between sliding pin 7 and extension spring 6, prevents screw tap from collapsing tooth or rotten tooth.
As shown in Figure 2, Figure 3, Figure 4, the processing method of a kind of internal thread machining fixture of the present embodiment, comprise the steps: first, first on numerically controlled lathe, bent axle is installed, then cutter hub 12, fluted drill drill bushing 16, internal thread machining fixture 19 are installed on Tool-rest of Numerical Control Lathe respectively, then difference mounting center drill bushing 13,91o lathe tool 15 in cutter hub 12, then in center drill bushing 13, A4 centre drill 14 is installed, then the fluted drill 17 of 8.4mm is installed in fluted drill drill bushing 16, the screw tap 18 of 3/8-24UNF is finally installed in internal thread machining fixture 19.The second, after described step 1 installs, first rotate cutter hub 12 and make 91o lathe tool 15 aim at machining crankshafts, then by the chamfering of 45 degree, lathe tool 15 car of 91o, then use 91o lathe tool 15 face work.3rd, after the complete end face of described step 2 car, then move cutter hub 12 and make A4 centre drill 14 aim at machining crankshafts, then use A4 centre drill 14 drill centers.4th, after described step 3 has bored centre bore, first rotate fluted drill drill bushing 16 and make the fluted drill 17 of 8.4mm aim at machining crankshafts, be then 26mm by fluted drill 17 drilling depth of 8.4mm, its speed of mainshaft is 400r/min, and per minute feeding is 60mm/min.5th, after described step 4 has bored degree of depth hole, first rotating internal thread machining fixture 19 makes the screw tap 18 of 3/8-24UNF aim at machining crankshafts, then be 22mm with screw tap 18 tapping depth of 3/8-24UNF, its speed of mainshaft is 100r/min, often turning feeding is 1.0mm/r, machines the screw tap 18 retreating 3/8-24UNF, completes whole internal thread machining process.
A kind of internal thread machining fixture that the present embodiment provides and the beneficial effect of processing method thereof are: the structure of internal thread machining fixture is simple, because knife bar is connected the whole process enabling screw tap realize internal thread machining on centre numerically controlled lathe with the elasticity of chuck, its processing method of this internal thread machining fixture improves the quality of product while reducing production cost, greatly reduce the labour intensity of operator, thus effectively improve operating efficiency.
Embodiment 2
As shown in Figure 1, a kind of internal thread machining fixture of the present embodiment, comprises knife bar 1, offers knife bar cavity 2 in knife bar 1; Be provided with chuck 3 in described knife bar cavity 2, chuck 3 is made up of chuck head 10 and jacket body 11; Described chuck head 10 is positioned at outside knife bar 1, is socketed on knife bar cavity 2 in jacket body 11; Between described chuck head 10 and knife bar 1 end face, spring 4 is installed, two extension springs 6 are installed between chuck head 10 and knife bar cavity 2; Described knife bar 1 offers sliding tray 5, sliding pin 7 is installed in sliding tray 5.Described extension spring 6 is connected by the first screw 8 with chuck head 10.Described extension spring 6 is connected by the second screw 9 with knife bar cavity 2.
Can install the screw tap of different model in chuck head 10, extension spring 6 not only fixed by the first screw 8 be arranged in chuck head 10, also can fix screw tap.Knife bar 1 offers sliding tray 5, sliding pin 7 is installed in sliding tray 5.Sliding pin 7 by moving fixing with the position of two extension springs 6, thus makes chuck 3 move forward and backward.Between chuck head 10 and knife bar 1 end face, spring 4 is installed.In process, the power that spring 4 can provide screw tap to advance; When screw tap runs into powerful resistance, spring 4 compression can regulate screw tap by the fixed position between sliding pin 7 and extension spring 6, prevents screw tap from collapsing tooth or rotten tooth.
As shown in Figure 2, Figure 3, Figure 4, the processing method of a kind of internal thread machining fixture of the present embodiment, comprise the steps: first, first on numerically controlled lathe, bent axle is installed, then cutter hub 12, fluted drill drill bushing 16, internal thread machining fixture 19 are installed on Tool-rest of Numerical Control Lathe respectively, then difference mounting center drill bushing 13,91o lathe tool 15 in cutter hub 12, the centre drill 14 of A4 is then installed in center drill bushing 13, then the fluted drill 17 of 8.4mm is installed in fluted drill drill bushing 16, the screw tap 18 of 3/8-24UNF is finally installed in internal thread machining fixture 19.The second, after described step 1 installs, first rotate cutter hub 12 and make 91o lathe tool 15 aim at machining crankshafts, then by the chamfering of 45 degree, 91o lathe tool 15 car, then use 91o lathe tool 15 face work.3rd, after the complete end face of described step 2 car, then move cutter hub 12 and make A4 centre drill 14 aim at machining crankshafts, then use A4 centre drill 14 drill centers.4th, after described step 3 has bored centre bore, first rotate fluted drill drill bushing 16 and make the fluted drill 17 of 8.4mm aim at machining crankshafts, be then 32mm by fluted drill 17 drilling depth of 8.4mm, its speed of mainshaft is 650r/min, and per minute feeding is 120mm/min.5th, after described step 4 has bored degree of depth hole, first rotating internal thread machining fixture 19 makes the screw tap 18 of 3/8-24UNF aim at machining crankshafts, then be 28mm with screw tap 18 tapping depth of 3/8-24UNF, its speed of mainshaft is 300r/min, often turning feeding is 1.1mm/r, machines the screw tap 18 retreating 3/8-24UNF, completes whole internal thread machining process.
A kind of internal thread machining fixture that the present embodiment provides and the beneficial effect of processing method thereof are: the structure of internal thread machining fixture is simple, because knife bar is connected the whole process enabling screw tap realize internal thread machining on centre numerically controlled lathe with the elasticity of chuck, its processing method of this internal thread machining fixture improves the quality of product while reducing production cost, greatly reduce the labour intensity of operator, thus effectively improve operating efficiency.
Embodiment 3
As shown in Figure 1, a kind of internal thread machining fixture of the present embodiment, comprises knife bar 1, offers knife bar cavity 2 in knife bar 1; Be provided with chuck 3 in described knife bar cavity 2, chuck 3 is made up of chuck head 10 and jacket body 11; Described chuck head 10 is positioned at outside knife bar 1, is socketed on knife bar cavity 2 in jacket body 11; Between described chuck head 10 and knife bar 1 end face, spring 4 is installed, two extension springs 6 are installed between chuck head 10 and knife bar cavity 2; Described knife bar 1 offers sliding tray 5, sliding pin 7 is installed in sliding tray 5.Described extension spring 6 is connected by the first screw 8 with chuck head 10.Described extension spring 6 is connected by the second screw 9 with knife bar cavity 2.
Can install the screw tap of different model in chuck head 10, extension spring 6 not only fixed by the first screw 8 be arranged in chuck head 10, also can fix screw tap.Knife bar 1 offers sliding tray 5, sliding pin 7 is installed in sliding tray 5.Sliding pin 7 by moving fixing with the position of two extension springs 6, thus makes chuck 3 move forward and backward.Between chuck head 10 and knife bar 1 end face, spring 4 is installed.In process, the power that spring 4 can provide screw tap to advance; When screw tap runs into powerful resistance, spring 4 compression can regulate screw tap by the fixed position between sliding pin 7 and extension spring 6, prevents screw tap from collapsing tooth or rotten tooth.
As shown in Figure 2, Figure 3, Figure 4, the processing method of a kind of internal thread machining fixture of the present embodiment, comprise the steps: first, first on numerically controlled lathe, bent axle is installed, then cutter hub 12, fluted drill drill bushing 16, internal thread machining fixture 19 are installed on Tool-rest of Numerical Control Lathe respectively, then difference mounting center drill bushing 13,91o lathe tool 15 in cutter hub 12, then in center drill bushing 13, A4 centre drill 14 is installed, then the fluted drill 17 of 8.4mm is installed in fluted drill drill bushing 16, the screw tap 18 of 3/8-24UNF is finally installed in internal thread machining fixture 19.The second, after described step 1 installs, first rotate cutter hub 12 and make 91o lathe tool 15 aim at machining crankshafts, then by the chamfering of 45 degree, 91o lathe tool 15 car, then use 91o lathe tool 15 face work.3rd, after the complete end face of described step 2 car, then move cutter hub 12 and make A4 centre drill 14 aim at machining crankshafts, then use A4 centre drill drill centers.4th, after described step 3 has bored centre bore, first rotate fluted drill drill bushing 16 and make the fluted drill 17 of 8.4mm aim at machining crankshafts, be then 29mm by fluted drill 17 drilling depth of 8.4mm, its speed of mainshaft is 500r/min, and per minute feeding is 90mm/min.5th, after described step 4 has bored degree of depth hole, first rotating internal thread machining fixture 19 makes the screw tap 18 of 3/8-24UNF aim at machining crankshafts, then be 25mm with screw tap 18 tapping depth of 3/8-24UNF, its speed of mainshaft is 180r/min, often turning feeding is 1.058mm/r, machines the screw tap 18 retreating 3/8-24UNF, completes whole internal thread machining process.
A kind of internal thread machining fixture that the present embodiment provides and the beneficial effect of processing method thereof are: the structure of internal thread machining fixture is simple, because knife bar is connected the whole process enabling screw tap realize internal thread machining on centre numerically controlled lathe with the elasticity of chuck, its processing method of this internal thread machining fixture improves the quality of product while reducing production cost, greatly reduce the labour intensity of operator, thus effectively improve operating efficiency.
Claims (8)
1. an internal thread machining fixture, is characterized in that: comprise knife bar (1), offers knife bar cavity (2) in knife bar (1); Be provided with chuck (3) in described knife bar cavity (2), chuck (3) is made up of chuck head (10) and jacket body (11); Described chuck head (10) is positioned at knife bar (1) outside, is socketed on knife bar cavity (2) in jacket body (11); Between described chuck head (10) and knife bar (1) end face, spring (4) is installed, extension spring (6) is installed between chuck head (10) and knife bar cavity (2); Described knife bar (1) offers sliding tray (5), sliding pin (7) is installed in sliding tray (5).
2. a kind of internal thread machining fixture according to claim 1, is characterized in that: be provided with two extension springs (6) between described chuck head (10) and knife bar cavity (2).
3. a kind of internal thread machining fixture according to claim 1, is characterized in that: described extension spring (6) and chuck head (10) are connected by the first screw (8); Described extension spring (6) and knife bar cavity (2) are connected by the second screw (9).
4. the processing method of a kind of internal thread machining fixture according to claim 1, is characterized in that comprising the steps:
First on numerically controlled lathe, bent axle is installed, cutter hub (12), fluted drill drill bushing (16), internal thread machining fixture (19) are then installed respectively on Tool-rest of Numerical Control Lathe, then difference mounting center drill bushing (13), lathe tool (15) in cutter hub (12), then in center drill bushing (13), mounting center bores (14), then in fluted drill drill bushing (16), fluted drill (17) is installed, finally in internal thread machining fixture (19), screw tap (18) is installed;
After described step 1 installs, first rotate cutter hub (12) and make lathe tool (15) aim at machining crankshafts, then use the chamfering of 45 degree, lathe tool (15) car, then use lathe tool (15) face work;
After the complete end face of described step 2 car, then move cutter hub (12) and make centre drill (14) aim at machining crankshafts, then use centre drill (14) drill centers;
After described step 3 has bored centre bore, first rotating fluted drill drill bushing (16) makes fluted drill (17) aim at machining crankshafts, then use fluted drill (17) drilling depth to be 26-32mm, its speed of mainshaft is 400-650r/min, and per minute feeding is 60-120mm/min;
After described step 4 has bored degree of depth hole, first rotating internal thread machining fixture (19) makes screw tap (18) aim at machining crankshafts, then use screw tap (18) tapping depth to be 22-28mm, its speed of mainshaft is 100-300r/min, and often turning feeding is 1.0-1.1mm/r.
5. the processing method of a kind of internal thread machining fixture according to claim 4, is characterized in that: the lathe tool (15) be arranged in described step 1 on cutter hub (12) is 91o lathe tool.
6. the processing method of a kind of internal thread machining fixture according to claim 4, is characterized in that: the centre drill (14) be arranged in described step 1 in center drill bushing (13) is A4 centre drill.
7. the processing method of a kind of internal thread machining fixture according to claim 4, it is characterized in that: in described step 1, be arranged on the fluted drill that the fluted drill (17) in fluted drill drill bushing (16) is 8.4mm, fluted drill (17) drilling depth is 29mm, its speed of mainshaft is 450-600r/min, and per minute feeding is 80-100mm/min.
8. the processing method of a kind of internal thread machining fixture according to claim 4, it is characterized in that: the screw tap (18) be arranged in described step 1 in internal thread machining fixture (19) is 3/8-24UNF screw tap, screw tap (18) tapping depth is 25mm, its speed of mainshaft is 150-250r/min, and often turning feeding is 1.058mm/r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210448824.6A CN102962533B (en) | 2012-11-09 | 2012-11-09 | Internal thread processing clamp and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210448824.6A CN102962533B (en) | 2012-11-09 | 2012-11-09 | Internal thread processing clamp and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102962533A CN102962533A (en) | 2013-03-13 |
| CN102962533B true CN102962533B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210448824.6A Expired - Fee Related CN102962533B (en) | 2012-11-09 | 2012-11-09 | Internal thread processing clamp and processing method thereof |
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| CN (1) | CN102962533B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191048B (en) * | 2014-08-14 | 2016-10-05 | 梧州市旺捷机械制造有限公司 | Internal thread tube piece processing method |
| CN104259595A (en) * | 2014-08-14 | 2015-01-07 | 梧州市旺捷机械制造有限公司 | Spline machining tool |
| CN104289863B (en) * | 2014-08-14 | 2016-09-07 | 梧州市旺捷机械制造有限公司 | spline processing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS5391488A (en) * | 1976-12-22 | 1978-08-11 | Moatti Henri | Drilling and thread cutting machine |
| CZ295167B6 (en) * | 2002-12-18 | 2005-06-15 | Západočeská Univerzita V Plzni | Device for clamping tools in machine-tool spindle |
| CN201768974U (en) * | 2010-08-17 | 2011-03-23 | 鞍山钢铁集团公司 | Quick-change tap clamping device |
| CN102423854A (en) * | 2011-09-30 | 2012-04-25 | 刘成义 | Threaded drilling and tapping cutter at end of novel crankshaft timing gear |
| CN202292147U (en) * | 2011-09-30 | 2012-07-04 | 刘成义 | Novel crankshaft timing gear end thread drilling tapping cutter head |
-
2012
- 2012-11-09 CN CN201210448824.6A patent/CN102962533B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5391488A (en) * | 1976-12-22 | 1978-08-11 | Moatti Henri | Drilling and thread cutting machine |
| CZ295167B6 (en) * | 2002-12-18 | 2005-06-15 | Západočeská Univerzita V Plzni | Device for clamping tools in machine-tool spindle |
| CN201768974U (en) * | 2010-08-17 | 2011-03-23 | 鞍山钢铁集团公司 | Quick-change tap clamping device |
| CN102423854A (en) * | 2011-09-30 | 2012-04-25 | 刘成义 | Threaded drilling and tapping cutter at end of novel crankshaft timing gear |
| CN202292147U (en) * | 2011-09-30 | 2012-07-04 | 刘成义 | Novel crankshaft timing gear end thread drilling tapping cutter head |
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Inventor after: Wang Xiaocui Inventor after: Zhu Zhenrong Inventor before: Zhu Zhenrong |
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Granted publication date: 20150318 Termination date: 20211109 |