CN201316850Y

CN201316850Y - Tapping power head

Info

Publication number: CN201316850Y
Application number: CNU2008202169813U
Authority: CN
Inventors: 蒋宏宝
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-11
Filing date: 2008-12-11
Publication date: 2009-09-30
Anticipated expiration: 2018-12-11

Abstract

The utility model relates to a tapping power head, which comprises a spindle (1) and a box body (4) and is characterized in that the spindle (1) is moveably supported in the box body (4) through a front bushing (3) and a rear bushing (6), a spline housing (11) is installed on one end of the spindle (1) extending out from the box body (1), a driven wheel (9) is installed on the spline housing (11) and drives the spline housing (11) to rotate, the driven wheel (9) is connected with a power device, a bearing (17) is installed on the spline bushing (11) and each side of the driven wheel (9), a transmission frame (8) is installed on the bearing (17) and connected with the box body (4), a rear bearing cover (12) is installed on one side of the transmission frame (8) which is not connected with the box body (4), a master form (13) is connected with the rear bearing cover (12) through fastening pieces, a thread gauge (14) with male threads is screwed in the female thread hole of the master form (13), the thread gauge (14) is sheathed on the spindle (1), the thread gauge (14) and the spindle (1) are driven synchronously through a flat key or a spline and the advancing end of the thread gauge (14) leans against the shoulders on the spindle (1). The utility model has the advantages that the structure is simple, the volume is small and the manufacturing cost can be saved greatly on the premise that the accuracy is ensured.

Description

Tapper unit

Technical field

The utility model relates to a kind of machinery processing apparatus, especially a kind of chasing bar, specifically a kind of tapper unit.

Background technology

As everyone knows, in machine components and pipe fitting, valve member, often the internal and external threads structure to be used,, tapper unit must be used in order to guarantee machining accuracy.

The main axis rotation of existing tapper unit is to be driven by the different actuating unit of two covers with feeding, rotating as main shaft is by driven by motor, feeding then is to come whole drive shaft device to move as straight line by pneumatic or hydraulic means, therefore existing tapper unit complex structure not only, and volume is big, the cost height is installed, safeguards complicated.

Summary of the invention

The purpose of this utility model is to be driven by the different device of two covers with feeding and the complex structure that causes at the main axis rotation of existing chasing bar, bulky problem, design a kind of simple in structure, the tapper unit that volume is little.

The technical solution of the utility model is:

A kind of tapper unit, comprise and drive cutter rotation and main shaft 1 that advances and the casing 4 that is used for supporting spindle 1, main shaft 4 links to each other with the power set that drive its rotation, it is characterized in that being equipped with on the end of described main shaft 1 the tooth rule of rotating with main shaft 1 14, described tooth is advised 14 spinnings in pattern 13, and pattern 13 directly or indirectly links to each other with casing 4.

Main shaft 1 by front lining 3 and back bush 6 expansion bearings in casing 4, stretch out at main shaft 1 spline housing 11 is installed on the end of casing 1, the follower 9 that drives its rotation is installed on the spline housing 11, follower 9 links to each other with power set, on spline housing 11, the both sides of follower 9 respectively are equipped with a bearing 17, gear frame 8 is sleeved on the bearing 17 and with casing 4 and is fixedly linked, a side that does not link to each other with casing 4 at gear frame 8 is equipped with rear bearing cover 12, pattern 13 and rear bearing cover 12 link to each other by securing member, be installed with in the internal thread hole of pattern 13 and have externally threaded tooth rule 14, tooth rule 14 are sleeved on the main shaft 1, both rotate synchronously by flat key or spline, the preceding inlet side of tooth rule 14 and the shaft shoulder on the main shaft 1 offset, the other end of tooth rule 14 links to each other with main shaft 1 with securing member by pressing plate 16, and cover is equipped with the guard shield 15 that links to each other with pattern on tooth rule 14.

Location bearing lid 7 also is installed between casing 4 and gear frame 8, between a follower 9 and a side bearing 17, spacer 10 is installed also.

The beneficial effects of the utility model:

The utility model integrates the rotation and the feeding of main shaft, and unified have power set to drive, and therefore simple in structure, volume is little, under the prerequisite that guarantees precision, can save manufacturing cost greatly.

The utility model can be used for and the supporting use of all kinds of internal and external threads process equipments, can realize the processing of various screw threads according to the difference of institute's dress cutter.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the vertical view of Fig. 1.

Among the figure: 1 is main shaft, and 2 is seal cover, and 3 is front lining, 4 is casing, and 5 is signal panels, and 6 is back bush, 7 are the location bearing lid, and 8 is gear frame, and 9 is follower, 10 is spacer, and 11 is spline housing, and 12 is rear bearing cover, 13 is pattern, and 14 are tooth rule, and 15 are tooth rule guard shield, 16 are tooth rule pressing plate, and 17 is bearing.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described.

As shown in Figure 1, 2.

A kind of tapper unit, comprise and drive cutter rotation and main shaft 1 that advances and the casing 4 that is used for supporting spindle 1, main shaft 4 links to each other with the power set that drive its rotation, the tooth rule of rotating with main shaft 1 14 are installed on one end of described main shaft 1, described tooth is advised 14 spinnings in pattern 13, pattern 13 directly or indirectly links to each other with casing 4, and structure shown in Figure 1 is the structure that links to each other indirectly.During concrete enforcement except adopting Fig. 1, outside the structure shown in 2, also can adopt the structure that directly links to each other, pattern 13 both can be installed on the end that main shaft is equipped with power, also can be installed near on the end of cutter, among Fig. 1 main shaft 1 by front lining 3 and back bush 6 expansion bearings in casing 4, stretch out at main shaft 1 spline housing 11 is installed on the end of casing 1, the follower 9 that drives its rotation is installed on the spline housing 11, follower 9 links to each other with power set (as motor), on spline housing 11, the both sides of follower 9 respectively are equipped with a bearing 17, gear frame 8 is sleeved on the bearing 17 and with casing 4 and is fixedly linked, a side that does not link to each other with casing 4 at gear frame 8 is equipped with rear bearing cover 12, pattern 13 and rear bearing cover 12 link to each other by securing member, be installed with in the internal thread hole of pattern 13 and have externally threaded tooth rule 14, tooth rule 14 are sleeved on the main shaft 1, both rotate synchronously by flat key or spline, the preceding inlet side of tooth rule 14 and the shaft shoulder on the main shaft 1 offset, the other end of described tooth rule 14 links to each other with main shaft 1 with securing member by pressing plate 16, and cover is equipped with the guard shield 15 that links to each other with pattern on tooth rule 14.Location bearing lid 7 also is installed between casing 4 and gear frame 8, between a follower 9 and a side bearing 17, spacer 10 is installed also.

The course of work of the present utility model is:

Motor drives follower 9 by belt wheel and rotates, follower 9 drives main shaft 1 rotation by spline housing 11, the cutter that main shaft 1 drives an end rotates tooth rule 14 rotations that drive when doing circumferential cutting on the other end, tooth rule 14 are rotated in pattern 13, because pattern 13 is fixed on the gear frame 8, and rotating turret 8 is fixedly linked with casing, therefore, pattern 13 forces tooth rule 14 to move axially owing to rotating, thereby driving main shaft 1 moves axially, the rotatablely moving and move axially the screw that synthesizes screw thread of main shaft 1, thus process the internal thread that equates with tooth rule pitch.Process the internal thread of different pitch if desired, then can realize by changing pattern 13 and tooth rule 14 simultaneously.

The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.

Claims

1, a kind of tapper unit, comprise and drive cutter rotation and main shaft (1) that advances and the casing (4) that is used for supporting spindle (1), main shaft (4) links to each other with the power set that drive its rotation, it is characterized in that being equipped with on the end of described main shaft (1) the tooth rule of rotating with main shaft (1) (14), described tooth rule (14) spinning is in pattern (13), and pattern (13) directly or indirectly links to each other with casing (4).

2, tapper unit according to claim 1, it is characterized in that main shaft (1) by front lining (3) and back bush (6) expansion bearing in casing (4), stretch out at main shaft (1) on the end of casing (1) spline housing (11) is installed, the follower (9) that drives its rotation is installed on the spline housing (11), follower (9) links to each other with power set, on spline housing (11), the both sides of follower (9) respectively are equipped with a bearing (17), gear frame (8) is sleeved on bearing (17) and upward and with casing (4) is fixedly linked, a side that does not link to each other with casing (4) at gear frame (8) is equipped with rear bearing cover (12), pattern (13) links to each other by securing member with rear bearing cover (12), be installed with in the internal thread hole of pattern (13) and have externally threaded tooth rule (14), tooth rule (14) are sleeved on the main shaft (1), both rotate synchronously by flat key or spline, the preceding inlet side of tooth rule (14) and the shaft shoulder on the main shaft (1) offset, the other end of tooth rule (14) links to each other with main shaft (1) with securing member by pressing plate (16), goes up cover on tooth rule (14) the guard shield (15) that links to each other with pattern is housed.

3, tapper unit according to claim 2 is characterized in that also being equipped with location bearing lid (7) between casing (4) and gear frame (8), between a follower (9) and a side bearing (17) spacer (10) is installed also.