CN218799339U - Deep hole machining positioning guide tool - Google Patents

Abstract

The utility model relates to a BTA location direction instrument, include: the guide piece is connected with the workpiece to be perforated and is used for positioning and guiding the cutter when the workpiece to be perforated is machined; the guide hole is a through hole with a first end surface extending to a second end surface, and the rear end of the guide hole on the second end surface close to the workpiece to be punched is arranged at the position eccentric along the axis of the workpiece shell; the positioning boss of the guide part is connected with the guide part and a positioning groove arranged on the contact surface of the workpiece to be punched through a matching structure; and the processing inclined plane is configured to be capable of being matched with the angle of the guide hole to be set so as to facilitate the processing of the drill bit.

Description

Deep hole machining positioning guide tool

Technical Field

The utility model relates to a location frock field preferably relates to a BTA location guiding tool.

Background

Deep Hole Machining (DHM) is a type of machining area dominated by tools designed specifically for existing applications. Deep hole drilling involves many different industries, but the most widely used are the energy and aerospace industries. However, the phenomena of large aperture, taper, hole deflection and the like are often generated during deep hole processing, and the suspension extension of a cutter during processing can cause poor cutter rigidity, low strength, and easy generation of vibration, corrugation, taper and the like, so that the concentricity and the surface roughness of a hole are influenced, deep hole processing becomes a big difficulty in machining. Along with the continuous development of the machining process, a plurality of shaft rod parts particularly applied to the energy field need to be subjected to deep hole machining and inclined hole machining simultaneously during machining, so that the machining difficulty is further improved, and meanwhile, the tool which can be conveniently positioned and guided during inclined hole machining is required for increasing requirements of complex holes and urgent requirements of shorter machining time.

Prior art like CN201922037717.4 discloses a pneumatic cylinder bores inclined hole frock, belong to the frock field, comprises a workbench, the upper end fixedly connected with support frame of workstation, the upper end fixedly connected with cylinder of support frame, the extension board is gone up to the cylinder pole fixedly connected with of cylinder, the lower extreme left and right sides difference fixedly connected with link board of going up the extension board, the lower extreme of link board is connected with down the extension board through the screw rotation, the motor has been placed to the upper end of lower extension board, the motor shaft fixedly connected with thread bush of motor, the upper end fixedly connected with mount pad of workstation, the mount pad is equipped with the mounting groove, through the setting of mounting groove, the threaded rod is connected with the anticreep piece, conveniently fix the machined part of treating, avoid adding the drawback that the emergence removal brought, simultaneously through being connected of ejector pin and kicking block, conveniently make the inside of treating the machined part and shifting out the mounting groove, through the setting of motor, the drill bit rotates the drill bit when convenient descending, convenient drilling, the resistance that the drill bit received has been reduced simultaneously.

The prior art, for example, cn201721818511.X discloses a guide tool for slide block inclined hole tapping. The guide device consists of a guide body, a lower pressing plate, an upper pressing plate, a lower pressing plate fixing screw, an upper pressing plate fixing screw, a lower connecting fastening screw, an upper connecting fastening screw and a guide rod; the utility model discloses to the inclined hole tapping of slider in the diesel engine part for the system ship, through removing the direction body, make the laminating of direction body wait to process slider body, insert the guide bar in the inclined hole of waiting to process slider body. After the upper and lower connecting clinch screws are connected and fastened, the guide rod is pulled out. The utility model discloses a direction instrument can guarantee the accuracy nature of location direction.

The prior art, for example, cn201610658096.X discloses a device for machining a deep hole, in particular, a device for machining an inclined deep hole and an operating method, which comprise a workbench and a base that are assembled with each other and can be disassembled, and is characterized in that an upright post fixed on the base, a support plate movably connected to the upright post and moving up and down along the vertical direction of the upright post, a rotating shaft fixed on the support plate, a sliding table rotating around the rotating shaft with the rotating shaft as a rotating center, a drill pipe box fixed on the sliding table and moving left and right along the sliding table, and a tool mounted on the drill pipe box and driven to rotate by the drill pipe box; the drill rod box is provided with an inner hole. When the gun drill is used for processing inclined deep holes, the rotating shaft is adopted to adjust the angle of the gun drill to be consistent with the angle of the inclined holes, and the linear moving shaft is adopted to adjust the position of the gun drill to reach a proper drilling position; the deep holes with different inclination angles of the workpiece can be machined only by adjusting the angle and the position of the cutter; the rotating shaft and the linear moving shaft are combined, so that the method is novel, and time and labor are saved.

Although the frock clamp who is used for the inclined hole processing among the prior art can accomplish the processing of some inclined holes, still have some problems man-hour adding, for example prior art like CN201922037717.4 discloses a pneumatic cylinder bores inclined hole frock, setting through the mounting groove, the threaded rod is connected with the anticreep piece, conveniently fix treating the machined part, avoid adding the drawback that takes place to remove and bring man-hour, simultaneously through being connected of ejector pin and kicking block, conveniently treat that the machined part shifts out the inside of mounting groove, but this inclined hole frock is only applicable to vertical drill, vertical drill's maximum lifting range is 300mm, when the longer great axostylus axostyle part of processing footpath, the axial length that can have the axostylus axostyle part is greater than vertical drill's maximum lifting range, and then lead to the unable circumstances of processing, adopt vertical drill to lead to the higher being unfavorable for operating workman to find the accurate location through the frock of work piece locating of putting position simultaneously. For example, the prior art cn201610658096.X discloses a device for machining a deep hole, which adjusts the angle of a gun drill through a rotating shaft when a gun drill is used for machining an inclined deep hole, so that the gun drill is consistent with the inclined hole angle, adjusts the position of the gun drill through a linear moving shaft, so that the gun drill reaches a proper drilling position, but the gun drill is often not successfully positioned once when the angle of the gun drill is adjusted through the rotating shaft, an operator needs to adjust the gun drill angle for multiple times and continuously adjust the linear moving shaft to position the gun drill, the process is complicated, time is consumed, the operator needs to have certain experience, the time is long in the whole positioning process, the efficiency is low, and when the machining device machines a shaft rod workpiece with a large diameter, the problem that the drill with a large inclined hole angle cannot approach the workpiece because the drill has to keep a certain distance from the end face of the workpiece during machining, unnecessary friction between the drill and the end face of the drill is prevented, the machining position and the angle of the drill are limited by the machine tool and the workpiece, so that the drill spindle cannot approach the workpiece, the length of the drill is in a machining state, the machining process, the problem that the drilling is difficult, the swinging is caused, the problem that the drilling is difficult, the problem that the drilling surface roughness is easily caused, and the problem of the drilling is easily caused, the problem of the drilling deviation and the drilling roughness is easily caused.

Furthermore, on the one hand, due to the differences in understanding to the person skilled in the art; on the other hand, since the applicant has studied a lot of documents and patents when making the present invention, but the space is not limited to detail and not to list all details and contents, however, this is by no means the present invention does not have these prior art features, but on the contrary the present invention has all features of the prior art, and the applicant reserves the right to increase the related prior art in the background.

SUMMERY OF THE UTILITY MODEL

The utility model provides a deep hole machining location direction instrument, include: connect the guide of treating the trompil work piece, the guide includes first terminal surface, second terminal surface, guiding hole, the guiding hole does first terminal surface extends to the through-hole of second terminal surface, preferably, the guiding hole is followed first terminal surface extends to the angle configuration of second terminal surface is processing angle, processing angle can adapt to treat the processing of trompil work piece, and be close to the work piece guiding hole rear end on the second terminal surface dispose in following treat the eccentric department of axis of trompil work piece casing.

Preferably, the central axis of the guide hole coincides with the central axis of the guide hole in the workpiece to be drilled, so that the angles of the guide hole and the guide hole are kept consistent, and the guide hole can provide position positioning and angle positioning for the drill bit.

Preferably, the pilot hole front end cross-sectional area on the first end face is greater than or at least equal to the pilot hole rear end cross-sectional area on the second end face.

Preferably, a guide member is provided at a front end of the guide hole on the first end surface for guiding the machining tool smoothly into the guide hole.

Preferably, the guide member is provided with a machined inclined surface on the first end surface of the guide hole away from the guide hole.

Preferably, the processing inclined plane can have any angle, and the angle can be matched with the angle of the guide hole to be set so as to facilitate the processing of the drill bit.

Preferably, a central axis of the guide hole forms a first angle with an assembly plane of the workpiece to be punched, where the central axis of the guide hole is located, and the first angle is any value from 5 ° to 30 °.

Preferably, the distance between the starting point of the pilot hole and the inner diameter of the workpiece to be drilled on the radial cross section close to the second end face is not equal to the distance between the starting point of the pilot hole and the outer diameter of the workpiece to be drilled.

Preferably, a connection line between the guide hole on the second end face and the center point of the positioning boss forms a second angle with an assembly plane of the workpiece to be perforated, and the second angle is any value from 5 degrees to 30 degrees.

Preferably, the guide is provided with a positioning boss, the guide and the contact surface of the workpiece to be punched are provided with positioning grooves, the positioning grooves are used for installing the guide, and the positioning boss of the guide is connected with the positioning grooves through a matching structure.

The utility model discloses a beneficial technological effect includes: dispose the guiding hole on the guide with lining up, the guiding hole is the through-hole that first terminal surface extends to the second terminal surface, when the guide passes through bolt or keyway mode configuration and treating trompil work piece surface, the axis coincidence in the inside axis that leads of work piece in guiding hole of guiding hole, make the angle in guiding hole and leading hole keep unanimous, and can fix a position fast through the guiding hole that sets up in advance on the guide rather than the planar first angle of the assembly of treating the trompil work piece at place and rather than the planar second angle of the assembly of treating the trompil work piece at place, after fixing the guide, only need pass the guiding hole with the cutter and can realize finding the accuracy fast of cutter, reach quick finding accuracy, convenient to use's beneficial effect.

The guide piece is far away from the one end of leading the hole and has arranged the processing inclined plane at the guiding hole, treats the trompil work piece and adds man-hour at the cutter, because the existence on processing inclined plane can make the cutter needn't collide the friction with the location direction instrument at the in-process of feeding, the angle on processing inclined plane cooperates the angle of guiding hole to set up and reaches the drill bit processing of being convenient for, the beneficial effect of free feed.

The guide with treat that trompil work piece contact surface sets the constant head tank, use this application location guiding tool to carry out parts machining, location boss on the guide is connected through cooperation structure with the constant head tank for the guide with treat that the trompil work piece can not relative vibration, reach the cutter and treat the stable effect when the trompil work piece.

The guide assembly is arranged at the front end of the guide hole of the guide piece on the first end face and used for guiding a machining cutter to smoothly enter the guide hole, when the cutter is about to enter the guide hole, the cutter can smoothly enter the guide hole by arranging the guide assembly, the condition that multiple times of cutter setting is needed due to the fact that the guide hole is too thin is avoided, and the beneficial effect of facilitating cutter setting is achieved.

Drawings

Fig. 1 is a schematic view of the assembly of a deep hole machining positioning guide tool and a workpiece to be drilled according to the present invention;

fig. 2 isbase:Sub>A sectional view ofbase:Sub>A deep hole machining positioning guide tool of the present invention;

fig. 3 is a front view of a deep hole machining positioning guide tool of the present invention;

fig. 4 is a bottom view of the deep hole machining positioning guide tool of the present invention;

fig. 5 is a left side view of a deep hole machining positioning guide tool of the present invention;

fig. 6 is a cross-sectional view of a workpiece B-B to be apertured.

List of reference numerals

100: a guide member; 101: a first end face; 102: a second end face; 103: processing an inclined plane; 104: a guide hole; 105: positioning the boss; 106: the front end of the guide hole; 107: the rear end of the guide hole; 200: a workpiece to be perforated; 201: a lead hole; 301: a first angle; 302: a second angle.

Detailed Description

Any orientation specified in this application is provided for the convenience of the reader only and is not intended to limit the application accordingly. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

These and other features and advantages of the present invention will be more fully understood from the following description of one or more embodiments of the invention taken together with the accompanying drawings.

To prior art, this application has provided a BTA location guiding tool, includes: according to a preferred embodiment, since the workpiece 200 to be perforated needs to be provided with the guide connection hole 201 at a position 1/3 of the axis eccentricity of the workpiece shaft housing, an assembly plane needs to be cut at the position of the workpiece 200 to be perforated where the guide connection hole 201 is provided to facilitate the assembly of the guide 100, as shown in fig. 1, the assembly plane may also be provided with a positioning groove with a size matched with the positioning boss 105 of the guide 100 for inserting the positioning boss 105 of the guide 100, when a tool processes the workpiece 200 to be perforated through the guide 100, the positioning boss 105 of the guide 100 may be in an insertion connection with the positioning groove on the assembly plane of the workpiece to be perforated, and then tightly connected with the assembly plane of the workpiece to be perforated through a bolt and a screw hole or the like, so that when the tool processes the workpiece 200 to be perforated through the guide 100, the guide 100 does not move relative to the workpiece 200 to be perforated, and the stability of the processing is ensured.

According to a preferred embodiment, the guide member 100 has a first end surface 101 and a second end surface 102, when the guide member 100 is connected with the assembly plane of the workpiece to be drilled through a matching structure (the matching structure may be a key slot or a bolt hole or the like), the guide member 100 may be in contact relation with the end surface to be drilled of the workpiece to be drilled 200, the first end surface 101 of the guide member 100 is the end surface far away from the workpiece to be drilled 200, the second end surface 102 of the guide member 100 is configured close to the end surface to be drilled of the workpiece to be drilled 200, the rear end 107 of the guide hole on the second end surface 102 close to the end surface to be drilled 200 is configured at 1/3 eccentric position along the axis of the housing of the workpiece to be drilled, preferably, as shown in fig. 6, after the tool is used for machining the lead hole 201 of the workpiece to be drilled 200 through the guide member 100, the starting point 201 of the lead hole on the radial cross section close to the second end surface 102 is not equal to the inner diameter of the workpiece to be drilled 200 and is not equal to the outer diameter of the lead hole 201, and the connecting line between the starting point 201 and the vertical to the assembly plane of the workpiece to be drilled 201 is 22.65 °.

According to a preferred embodiment, as shown in fig. 2, the guide member 100 is provided with a through guide hole 104, the guide hole 104 is a through hole extending from the first end surface 101 to the second end surface 102, and the angle of the guide hole 104 extending from the first end surface 101 to the second end surface 102 is configured as a machining angle, the machining angle is suitable for machining the workpiece 200 to be drilled, preferably, the machining angle extending from the first end surface 101 to the second end surface 102 is configured as 10 °, when the guide member 100 is assembled on the assembly plane of the workpiece to be drilled, the central axis of the guide hole 104 is in a coincidence relation with the central axis of the lead hole 201 of the workpiece 200 to be drilled, and since the central axis of the guide hole coincides with the central axis of the lead hole of the workpiece to be drilled, the lead hole 201 at a desired angle can be drilled directly when the tool is fed to the lead hole 201 of the workpiece 200 to be drilled through the guide hole 104.

According to a preferred embodiment, as shown in fig. 2 and 5, the guide hole 104 has a first angle 301 and a second angle 302, when the guide 100 is assembled on the assembly plane of the workpiece 200 to be drilled, the central axis of the guide hole 104 is at the first angle 301 with the assembly plane of the workpiece 200 to be drilled, the first angle 301 may be any value from 5 ° to 30 °, a connecting line between the central point of the cross section of the guide hole 104 on the second end surface 102 and the central point of the positioning boss 105 is at the second angle 302 with the assembly plane of the workpiece 200 to be drilled, the second angle 302 may be any value from 5 ° to 30 °, preferably, the first angle 301 is 10 °, the second angle 302 is 22.65 °, and the positioning by the first angle 301 and the second angle 302 is such that when the guide 100 is assembled on the assembly plane of the workpiece to be drilled, the feeding angle of the tool to the lead hole 201 of the workpiece 200 to be drilled through the guide hole 104 is the desired angle of the guide hole 201.

According to a preferred embodiment, as shown in fig. 3, the guide 100 is provided with a processing bevel 103 on the first end surface 101 away from the guide hole 201, the processing bevel 103 can have any angle, and the angle can be set according to the angle of the guide hole 104, wherein the processing bevel 103 can slide relative to the tool housing when the tool is about to enter the guide 100, so that the tool housing does not collide with the guide 100 during tool feeding, thereby facilitating tool processing.

According to a preferred embodiment, a guiding component is configured at the front end 106 of the guiding hole on the first end surface 101, and the guiding component is in guiding relation with the tool when the tool is about to enter the guiding element 100, and the cross-sectional area of the front end 106 of the guiding hole on the first end surface 101 is equal to the cross-sectional area of the rear end 107 of the guiding hole on the second end surface 102, so that when the tool is about to enter the guiding element 100, the tool can smoothly enter the guiding hole 104 by the guiding component, thereby avoiding the situation that the tool needs to be set for multiple times due to the guiding hole 104 being too thin, and again, it is noted that when the tool enters the guiding component, the tool does not actually cut yet, but the tool moves in the radial direction under the driving of the main shaft, and even if the rotating speed of the main shaft is low, the tool will tend to rub against the hole wall of the guiding hole 104, so that the tool enters the guiding hole 104 in the low feeding mode in the process, and the tool and the guiding element 100 are prevented from being damaged due to the too fast and strong rubbing against the hole wall. When the tool is moved to about 1mm from the bottom of the guide hole 104 with constant machining parameters, the machine tool starts up the circulation of the cutting fluid, (providing cooling, lubrication and chip removal for subsequent machining). After the cutter drills about 2-3 times of diameter depth from the bottom hole of the guide hole 104, the processing parameters are improved, and the cutter can be effectively guaranteed to be supported sufficiently during processing.

Generally, to save time and optimize the processing procedure, the following are used: when the cutter is machined to 2-3 times of diameter depth at low feeding and low rotating speed, the rotating speed of a main shaft and the feeding of the cutter are increased when no measure is taken, the process has the defect that the cutter is obvious under phi 5, the impact of the feeding sudden change in machining on a cutting edge is large enough to exceed the bearing of the cutter, the edge is broken, the situation is very dangerous, and once the edge is broken, the risk of cutter breakage can occur under the condition that the cutter is not replaced in time. To avoid this, the tool is usually retracted by about 1mm in the feeding direction before the tool is shifted, and the spindle speed and feed are increased to cut the workpiece at high tool speed and high feed. Therefore, the cutter is processed at high rotating speed and high feeding when the cutter starts to cut, and the situation that the cutting force is suddenly increased in the reprocessing process is avoided. Can effectively improve the problem of cutter breakage. During high-speed cutting, the rotating speed and feeding of the main shaft are changed according to the actual working condition and by combining a plurality of factors such as the stability of a machine tool, the supply pressure of cutting fluid, the casting characteristic of a workpiece and the like.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents. The present description contains several inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", all indicating that the respective paragraph discloses an independent concept, the applicant reserves the right to propose divisional applications according to each inventive concept.

Claims (11)

1. A deep hole machining positioning guide tool, comprising: the guide piece (100) is connected with a workpiece (200) to be perforated, the guide piece (100) comprises a first end face (101), a second end face (102) and guide holes (104), the guide holes (104) are through holes extending from the first end face (101) to the second end face (102), and the guide holes (104) are configured into machining angles from the angle of the first end face (101) extending to the second end face (102), the machining angles can be suitable for machining the workpiece (200) to be perforated, and the rear ends (107) of the guide holes on the second end face (102) close to the workpiece are configured at the position eccentric along the axis of the shell of the workpiece (200) to be perforated.

2. A deep hole machining positioning guide tool according to claim 1, characterized in that a central axis of the guide hole (104) coincides with a central axis of a guide hole (201) inside the workpiece (200) to be drilled, so that angles of the guide hole (104) and the guide hole (201) are consistent, and the guide hole (104) can provide position positioning and angle positioning for a drill bit.

3. A deep-hole-machining positioning guide tool according to claim 2, characterized in that the cross-sectional area of the guide hole front end (106) on the first end face (101) is at least equal to the cross-sectional area of the guide hole rear end (107) on the second end face (102).

4. A deep-hole machining positioning guide tool according to claim 2, characterized in that the cross-sectional area of the guide hole front end (106) on the first end face (101) is larger than the cross-sectional area of the guide hole rear end (107) on the second end face (102).

5. Deep hole machining positioning and guiding tool according to claim 3 or 4, characterized in that a guiding assembly is arranged at the front end (106) of the guiding hole on the first end surface (101) for guiding the machining tool smoothly into the guiding hole (104).

6. A deep-hole-machining positioning guide tool according to claim 1, characterized in that the guide (100) is provided with a machining bevel (103) at the first end face (101) of the guide hole (104) remote from the guide connection hole (201).

7. A deep hole machining positioning guide tool according to claim 6, characterized in that the machining inclined surface (103) can have any angle which can be set to match the angle of the guide hole (104) to facilitate drill machining.

8. Deep hole machining positioning and guiding tool according to claim 7, characterized in that the central axis of the guiding hole (104) forms a first angle (301) with the assembly plane of the workpiece to be drilled on which the central axis is located, and the first angle (301) is any value from 5 ° to 30 °.

9. A deep-hole machining positioning and guiding tool according to claim 8, characterized in that the distance from the starting point of the pilot hole (201) to the inner diameter of the workpiece (200) to be drilled and the distance from the outer diameter of the workpiece (200) to be drilled are unequal on a radial cross section close to the second end face (102).

10. Deep hole machining positioning guide tool according to claim 1, characterized in that the guide member (100) is provided with a positioning boss (105), a positioning groove is provided on the contact surface of the guide member (100) and the workpiece (200) to be drilled, the positioning groove is used for installing the guide member (100), and the positioning boss (105) of the guide member (100) is connected with the positioning groove through a matching structure.

11. A deep hole machining positioning and guiding tool according to claim 10, characterized in that a connecting line of the guide hole (104) on the second end face (102) and the center point of the positioning boss (105) forms a second angle (302) with an assembly plane of a workpiece to be drilled on which the second angle (302) is located, and the second angle (302) is any value from 5 ° to 30 °.

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