CN204321242U - A kind of inner walls of deep holes blind hole processing device - Google Patents

Abstract

A blind hole processing device on the inner wall of a deep hole. Guide blocks are evenly distributed on the outer wall of the base body. The small bevel gear and the large bevel gear mesh; the large bevel gear is fixed between the through holes of the sleeve; the large bevel gear is connected with the external thread installation cutter head, and the external thread installation cutter head is fixed in the tool shell; the tool shell is connected with a disc, The disc is matched with the radial through hole of the base body, the rack meshes with the gear put into the housing, the gear is installed on one end of the feed shaft, the rotation of the feed shaft drives the gear to rotate, the gear meshes with the rack, and the rotation of the gear causes the rack Radial movement, the rack is fixed on the half cylinder, so that the half cylinder, the tool shell, the sleeve, and the disc move radially together, and the radial movement of the tool shell makes the externally threaded cutter head move radially, and at the same time Radial movement of the tool mounted on the externally threaded mounting head.

Description

A deep hole inner wall blind hole processing device

technical field

The utility model belongs to the technical field of mechanical processing, in particular to a blind hole processing device on the inner wall of a deep hole.

technical background

At present, the processing of blind holes at home and abroad mainly adopts the methods of electric processing, mechanical processing and perforating gun processing. Electric processing such as ultrasonic wave processing, ultraviolet wave processing, and electric discharge processing have certain limitations, such as small processing aperture, long processing time, and high cost. Perforating guns are often used to process blind holes in oil pipe strings, which also has certain disadvantages, such as the inability to accurately control the size of blind holes. Machining blind holes is more suitable for actual production, but it also has certain shortcomings. Some existing mechanical processing methods are mainly used for the processing of blind holes on the inner wall of shallow holes. It can only process blind holes that are close to the two ends of the hole, and the position of the blind hole in the axial length dimension is very small. The processing of blind holes on the inner wall of deep holes is still in the exploratory stage.

Contents of the invention

In order to overcome the above-mentioned shortcomings of the existing blind hole processing method, the purpose of this utility model is to provide a deep hole inner wall blind hole processing device to replace the original blind hole processing method; the utility model overcomes the disadvantage of single processing size of the same tool , It has the characteristics of being able to process deep holes and blind holes, and the processing vibration is small.

In order to achieve the above object, the technical solution of the utility model is designed in this way:

A blind hole processing device on the inner wall of a deep hole, comprising a base body 1, the base body 1 is supported by a base 7, three guide blocks 2 are evenly distributed on the outer wall of the base body 1, and the base body 1 has a radial through hole R and an axial non-through hole K, there is a cover plate 3 at the upper end of the through hole, and the power shaft 4 is fixed in the axial hole of the base body 1 through a bearing and an end cover. The pulley 5 is connected, and the pulley 5 is connected with a motor through a belt; the other end of the power shaft 4 has a keyway on the inner wall, which is connected with the small bevel gear 8 through the key, and the small bevel gear 8 meshes with the large bevel gear 9 through teeth; the outer circle of the large bevel gear 9 Cooperate with the bearing and fix between the radial through holes of the sleeve 1; there is a spline keyway A on the inner circle of the large bevel gear 9, which is connected with the external thread installation cutter head 10 with splines, and the external thread installation cutter head 10 can pass through the outer Threads and cutters are used to replace cutters of different sizes. The external thread mounting cutter head 10 is fixed in the cutter housing 11 through the end cover and bearings; there is a half cylindrical groove B on the cutter housing 11, and the rack 12 and the half cylinder C pass through the groove connection, the size of the semi-cylindrical body C is the same as the size of the semi-cylindrical groove B on the tool housing 11, the semi-cylindrical body C embedded with the rack 12 is fixed in the semi-cylindrical groove B of the tool housing 11 through the sleeve 13, and the top of the tool housing 11 It is connected with a disc 14 through threads, and the disc 14 cooperates with the radial through hole of the base body 1 to ensure that the housing only moves radially in the through hole; the rack 12 meshes with the gear 15 put into the housing, and the gear 15 is installed On one end of the feed shaft 6, there is a feed handle 16 at the other end of the feed shaft 6.

Using the utility model, in the process of processing deep and blind holes, since three guide blocks 2 are evenly distributed on the sleeve 1, the vibration generated by the tool during the processing can be eliminated, and the processing time generated during the processing can be reduced. error. Simultaneously, because of the guide block, the utility model can carry out blind hole processing to the deep hole. And because the external thread is used to install the cutter head 10, the needs of processing blind holes of different sizes can be met within a certain range.

The tool for machining blind holes of the utility model has the following characteristics: 1. The tool can process blind holes in deep holes. 2. The cutter head can be connected with different cutters, and within a certain range, it can meet the needs of processing blind holes of different sizes. 3. Eliminate the vibration generated during cutting, make the tool run more stably during the processing, and reduce the processing error.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model.

Fig. 2 is a front sectional view of the utility model.

Fig. 3 is a left sectional view of the utility model.

Specific implementation method

Below in conjunction with accompanying drawing, the utility model is described in further detail.

With reference to accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, a kind of deep hole inner wall blind hole processing device comprises base body 1, guide block 2, cover plate 3, power shaft 4, belt pulley 5, feed shaft 6, base 7, Small bevel gear 8, large bevel gear 9, external thread installation cutter head 10, cutter housing 11, rack 12, sleeve 13, disc 14, gear 15 and feed handle 16. The base body 1 is supported by the base 7. There are three guide blocks 2 uniformly distributed on the outer wall of the base body 1. The base body 1 has a radial through hole R and an axial non-through hole K. There is a cover plate 3 at the upper end of the through hole, and the power shaft 4 passes through The bearing and the end cover are fixed in the axial hole of the base body 1, the power shaft 4 is hollow, and there is a feed shaft 6 inside, and the outer wall of one end of the power shaft 4 has a keyway to connect with the pulley 5 through the key, and the pulley 5 is connected to a motor through a belt; There is a keyway on the inner wall of the other end of the shaft 4, which is connected with the small bevel gear 8 through the key, and the small bevel gear 8 and the large bevel gear 9 are meshed through the teeth; the outer circle of the large bevel gear 9 cooperates with the bearing and is fixed between the radial through holes of the sleeve 1; There is a spline keyway A on the inner circle of the large bevel gear 9, which is connected with the external thread installation cutter head 10 with splines. The external thread installation cutter head 10 can be used to replace different sizes of cutters through the cooperation of the external thread and the tool. The external thread installation The cutter head 10 is fixed in the cutter housing 11 through the end cover and the bearing; there is a half cylindrical groove B on the cutter housing 11, and the rack 12 is connected with the half cylinder C through the groove, and the size of the half cylinder C is the same as that of the upper half of the cutter housing 11. The dimensions of the cylindrical groove B are the same, and the semi-cylindrical body C embedded with the rack 12 is fixed in the semi-cylindrical groove B of the cutter housing 11 through the sleeve 13. The top of the cutter housing 11 is connected with a disc 14 through threads, and the disc 14 is connected to the base 1 The radial through-hole fits to ensure that the shell only moves radially in the through-hole; the rack 12 meshes with the gear 15 put into the shell, and the gear 15 is installed on one end of the feed shaft 6, and the feed shaft 6 There is a feed handle 16 at the other end.

The working principle of the utility model is: the feed movement of the cutter is completed by the feed shaft 6 . Move the handle to make the feed shaft 6 rotate, the feed shaft 6 rotates to drive the gear 15 to rotate, the gear 15 meshes with the rack 12, the rotation of the gear 15 causes the rack 12 to move radially, and the rack 12 is fixed on the semi-cylindrical body, so that The half cylinder, the tool housing 11, the sleeve 13, and the disc 14 move radially together, and the radial movement of the tool housing 11 makes the external thread mounting cutter head 10 produce radial movement, and at the same time, the external thread mounting cutter head 10 is installed The tool produces radial movement. This radial movement is the feed movement of the tool.

The main movement of the tool cutting is completed by the power shaft 4, the motor drives the pulley 5 and the power shaft 4 to rotate through the belt, the small bevel gear 8 and the power shaft 4 rotate together, the small bevel gear 8 meshes with the large bevel gear 9, and drives the large gear 7 Rotate, large gear 7 cooperates with external thread installation cutter head 10 by spline, and the rotation of large gear 7 makes external thread installation cutter head 10 produce rotary motion, simultaneously makes the cutter installed on external thread installation cutter head 10 produce rotary motion. This rotational movement is the main movement of the tool.

Through the above two movements, the processing of deep and blind holes can be completed.

Claims (1)

1. an inner walls of deep holes blind hole processing device, it is characterized in that, comprise matrix (1), matrix (1) is supported by base (7), matrix (1) outer wall is evenly distributed in (3) individual guide pad (2), matrix (1) has a radial direction through hole (R) and an axial non through hole (K), there is a cover plate (3) through hole upper end, line shaft (4) is fixed in matrix (1) axial hole by bearing and end cap, line shaft (4) is for hollow, inside there is a feed shaft (6), line shaft (4) one end outer wall has keyway to be connected with belt pulley (5) by key, belt pulley (5) is connected with a motor by belt, line shaft (4) other end inwall has keyway, is connected with bevel pinion (8) by key, and bevel pinion (8) is engaged by tooth with bevel gear wheel (9), bevel gear wheel (9) cylindrical and bearing fit are fixed between sleeve (1) radial direction through hole, bevel gear wheel (9) inner circle there is spline keyway (A), install cutter head (10) with the external screw thread with spline to be connected, external screw thread is installed cutter head (10) and is fixed in cutter shell (11) by end cap and bearing, cutter shell (11) there is half column type groove (B), tooth bar (12) is connected by groove with a semicylinder (C), this semicylinder (C) size and cutter shell (11) first cylinder groove (B) measure-alike, the semicylinder (C) being embedded with tooth bar (12) is fixed in the semicolumn groove (B) of cutter shell (11) by sleeve (13), cutter shell (11) top is connected with a disk (14) by screw thread, and disk (14) coordinates with matrix (1) radial direction through hole, tooth bar (12) engages with the gear (15) putting into housing, and gear (15) is arranged on one end of feed shaft (6), and the other end of feed shaft (6) then has a feeding handle (16).