CN210080746U - Chamfering device for machining and forming groove on drilling machine - Google Patents

Abstract

The utility model relates to a chamfer ware that is used for machine-shaping groove on drilling machine. The utility model discloses a cutter arbor, centering part and cutting device who is fixed in the cutter arbor top, cutting device include knife rest, blade holder, are fixed in the cutting sword of blade holder, adopt sliding fit and through dismantling mode fixed connection between blade holder and the knife rest, and centering part adopts can dismantle mode and cutter arbor fixed connection. The utility model discloses have stronger commonality when processing the groove, the specification and the reserve quantity of chamfer ware that can significantly reduce between the processing vehicle to reduce groove machining's cutter preparation cost, still improved the machining efficiency of shaping groove simultaneously.

Description

Chamfers for forming bevels on drilling machines

technical field

The utility model relates to a cutter on a drilling machine, in particular to a chamfering device used for processing and forming grooves on a drilling machine.

Background technique

In boiler manufacturing, chamfers are often used for beveling of pipe joints and header pipe holes. The chamferer usually includes a shank, a centering part located at the center of the top end of the shank, a tool holder fixed on the side of the top end of the shank, and a cutting tool fixed on the tool holder. When the chamfer is working, the centering part enters and exits the inner hole of the pipe joint or the header pipe hole to guide and locate, and the cutting tool rotates with the cutter bar to cut the pipe wall of the pipe joint or the hole wall of the header pipe hole. The existing chamfering device has the following shortcomings in use: since one type of chamfering device can only be used to process the same groove corresponding to the pipe diameter/aperture, different specifications of chamfering need to be configured for different pipe diameters/apertures. Therefore, the production workshop needs to be equipped with many specifications and a large number of chamfers, which leads to the high cost of tool configuration for processing grooves; when processing grooves, if the pipe diameter/aperture size of pipe joints/header pipe holes is frequently The conversion requires repeated replacement of the entire chamfering device, which is time-consuming and labor-intensive, and reduces the processing efficiency of pipe joints/header pipe holes.

SUMMARY OF THE INVENTION

The utility model mainly solves the technical defects in the prior art that due to the poor versatility of the tool, the tool configuration cost for processing the groove is relatively high and the processing efficiency is low, and provides a kind of groove processing tool with strong versatility. A chamferer for forming grooves on a drilling machine with low tool configuration cost and high processing efficiency.

Aiming at the above-mentioned technical problems, the utility model is mainly solved by the following technical solutions: the utility model comprises a cutter bar, a centering component fixed at the center of the top end of the cutter bar, and a cutting device fixed at the side of the top end of the cutter bar, which The cutting device is characterized in that: the cutting device comprises a tool holder fixedly connected with the tool bar, a cutting tool, and a tool holder fixedly connected with the cutting tool, the tool holder and the tool holder adopt sliding fit and are fixedly connected in a detachable manner, and the centering component is connected to the tool holder. The rods are fixed and connected in a detachable manner.

Preferably, the tool holder has a protruding slide rail on the vertical surface of the tool holder, a waist-shaped groove adjacent to the slide rail and parallel to the tool holder, and the slide rail and the waist-shaped groove are connected from the vertical surface of the tool holder to The junction of the tool bar extends outward to the far end away from the tool bar. The tool holder has a chute that matches the slide rail. The tool holder is clamped with the slide rail through the slide slot, and the fastener and the tool holder are passed through the waist-shaped groove. Forms a detachable fixed connection.

Preferably, the center of the top end of the cutter bar has a downward insertion hole, and the centering component includes a mandrel whose lower end matches the shape of the insertion hole, a positioning sleeve movably connected with the upper end of the mandrel, and a pressing block fixed above the positioning sleeve to press The block is fixedly connected with the mandrel through the top screw, the mandrel is inserted into the jack, and is fixedly connected with the tool holder through the side screw which is inserted into the jack from the outer edge of the tool bar in a screwed manner.

Preferably, the center of the top end of the cutter bar has a downward slot and a screw hole at the bottom of the slot, the centering component includes a mandrel whose lower end matches the shape of the slot, and a positioning sleeve movably connected with the upper end of the mandrel, which is fixed on the The pressure block above the positioning sleeve, the top screw matched with the screw hole, the mandrel is inserted into the slot, and is fixedly connected to the tool holder through the top screw threaded through the pressure block and the mandrel and the screw hole.

Preferably, the cutting device has two sets and is placed on the two wings of the tool bar, the tool bar and the tool holder are integrally constructed, and the lower end of the tool bar adopts a Morse taper shank.

Therefore, the utility model has a reasonable structure and has the following advantages:

In the utility model, the centering part and the tool holder are detachably connected, so the centering part can be replaced according to the inner diameter of the groove to be processed; the tool seat and the tool holder in the cutting device adopt sliding fit, the cutting tool The radial distance from the centering element can be adjusted by sliding the tool holder along the tool holder. Therefore, the utility model can be used for forming groove processing of workpieces with different pipe diameters/aperture diameters by replacing the centering components and adjusting the working position of the cutting blade, and has good versatility.

In a preferred solution of the utility model, a protruding slide rail and a waist-shaped groove adjacent to and parallel to the slide rail are provided on the vertical surface of the tool holder, and the tool holder is fixed on the tool holder by a fastener passing through the waist-shaped groove, The working position of the cutting tool can be adjusted along the sliding rail with the tool seat; the protruding sliding rail is engaged with the sliding groove, which is beneficial to prevent the displacement of the tool seat under force and affect the cutting accuracy of the cutting tool.

In a preferred solution of the present invention, the centering component includes a mandrel, a positioning sleeve, a pressing block and a top screw. Among them, the positioning sleeve and the mandrel are connected in rotation, and the contact between the positioning sleeve and the hole wall of the inner hole of the pipe joint/header pipe hole plays the role of guiding and centering when the groove is processed; the pressing block is used to limit the positioning sleeve to the mandrel. Axial displacement on the upper part; the pressure block is fixed by the top screw. When the positioning sleeve is worn or needs to be replaced due to the change of the hole diameter of the processed groove, as long as the pressure block is removed, the positioning sleeve can be removed from the mandrel for replacement. .

In the preferred solution of the present utility model, there are two connection schemes between the cutter bar and the centering part. One connection solution is: a hole for installing the mandrel is provided at the center of the top end of the cutter bar, and the lower end of the mandrel is inserted into the hole. It is fixed to the tool holder through the side screws; another connection scheme is: a slot for installing the mandrel and a screw hole at the bottom of the slot are opened at the center of the top of the tool holder, and the lower end of the mandrel is inserted into the slot and passed through The top screw and the screw hole are screwed and fixed on the tool holder. Therefore, the connection between the mandrel and the cutter bar is simple and reliable, and the disassembly is convenient. The above two connection schemes can be selected according to the diameter of the shank.

In the preferred solution of the present utility model, there are two sets of cutting devices and are separated on the two wings of the tool bar, which can not only improve the cutting efficiency but also facilitate the balance of the force when the tool is working; the tool bar and the tool holder are integrally processed, so The tool holder and the tool holder can have good connection strength and concentricity; the lower end of the tool holder adopts Morse taper shank, which can facilitate the connection between the tool holder and the taper sleeve on the drilling machine.

Therefore, the utility model has strong versatility in processing the grooves. On the one hand, the number of chamfers required by the production workshop can be greatly reduced, thereby reducing the cost of tool configuration for processing grooves; on the other hand, it avoids the need for When the size of the formed groove is changed, it is necessary to replace the whole chamfering device, which improves the working efficiency of the groove.

Description of drawings

1 is a schematic diagram of a preferred embodiment of the present invention;

Accompanying drawing 2 is the assembly schematic diagram of the present utility model shown in accompanying drawing 1;

3 is a schematic diagram of another preferred embodiment of the present invention;

FIG. 4 is an assembly schematic diagram of the present invention shown in FIG. 3 .

Description of reference numerals: 1. Tool holder; 11. Jack; 12. Side screw; 13. Slot; 14. Screw hole; 2. Centering part; 21. Mandrel; block; 24. Top screw; 3. Cutting device; 31. Tool holder; 32. Cutting knife; 33. Tool seat; 34. Slide rail; 35. Waist groove; 36. Fastener;

Detailed ways

The technical solutions of the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

Embodiment 1: as shown in accompanying drawing 1 and accompanying drawing 2, the utility model comprises a cutter bar 1, a centering member 2 fixed at the center of the top end of the cutter bar 1, and a cutting device 3 which is placed on the two wings of the cutter bar 1;

The upper end of the tool bar 1 and the tool holder 31 are integrally processed, the lower end of the tool bar 1 adopts a Morse taper shank, and the center of the top of the tool bar 1 has a downward insertion hole 11;

The centering part 2 includes a mandrel 21 , a positioning sleeve 22 rotatably connected with the upper end of the mandrel 21 , a pressing block 23 fixed above the positioning sleeve 22 , the pressing block 23 is fixed to the mandrel 21 by the top screw 24 , and the lower end of the mandrel 21 The part is inserted into the insertion hole 11 and is fixedly connected with the blade holder 1 through the side screw 12 which is inserted into the insertion hole 11 from the outer edge of the blade holder 1 by screwing;

The cutting device 3 includes a tool holder 31 fixedly connected with the tool bar 1, a cutting blade 32, and a tool holder 33 fixedly connected with the cutting blade 32, and the tool holder 33 and the tool holder 31 adopt sliding fit;

On the vertical surface of the tool holder 31 and the tool bar 1, a protruding slide rail 34 is provided, and a waist-shaped groove 35 adjacent to the slide rail 34 and parallel to and penetrating the tool holder 31 is provided. The slide rail 34 and the waist-shaped groove 35 are formed by The junction between the vertical surface of the tool holder 31 and the tool holder 1 extends outward to the far end away from the tool holder 1. The tool holder 33 is provided with a sliding groove 37 that is engaged with the slide rail 34 and fits with the vertical surface of the tool holder 31. The tool holder 33 is detachably connected to the tool holder 31 through a fastener 36 passing through the waist-shaped groove 35 . The fastener 36 is a screw and is connected to the tool holder 33 in a screwed manner.

When the utility model is assembled, the corresponding cutting tool 32 is firstly installed on the tool holder 33 according to the bevel shape of the workpiece. The firmware 36 is connected and fixed with the tool holder 31; then the centering part 2 is installed, the lower end of the mandrel 21 is inserted into the jack 11, and then the side bolts 12 are tightened, and the positioning sleeve 22 whose outer diameter matches the diameter of the workpiece is sleeved on the mandrel On the upper end of 21, place the pressing block 23 on the upper end face of the mandrel 21 and fix it with the top screw 24; adjust the radial distance between the cutting knife 32 and the positioning sleeve 22 by sliding the tool seat 33 along the slide rail 34, and tighten it after the adjustment is completed. Firmware 36. So far, the utility model is assembled, and the taper shank 1 is inserted into the taper sleeve of the drilling machine, and the groove processing can be started.

Embodiment 2: as shown in accompanying drawing 3 and accompanying drawing 4, the utility model comprises a cutter bar 1, a centering member 2 fixed at the top center of the cutter bar 1, and a cutting device 3 that is placed on the two wings of the cutter bar 1;

The tool bar 1 and the tool holder 31 are integrally processed, the lower end of the tool bar 1 adopts a Morse taper shank, and the center of the top end of the tool bar 1 has a downward slot 13 and a screw hole 14 at the bottom of the slot 13;

The centering component 2 includes a mandrel 21 whose lower end is inserted into the slot 13 , a positioning sleeve 22 rotatably connected with the upper end of the mandrel 21 , and a pressing block 23 fixed above the positioning sleeve 22 , passing through the pressing block 23 and the mandrel 21 and the The top screw 24 screwed into the screw hole 14;

The cutting device 3 includes a tool holder 31 fixedly connected with the tool bar 1, a cutting blade 32, and a tool holder 33 fixedly connected with the cutting blade 32, and the tool holder 33 and the tool holder 31 adopt sliding fit;

On the vertical surface of the tool holder 31 and the tool bar 1, a protruding slide rail 34 is provided, and a waist-shaped groove 35 adjacent to the slide rail 34 and parallel to and penetrating the tool holder 31 is provided. The slide rail 34 and the waist-shaped groove 35 are formed by The junction between the vertical surface of the tool holder 31 and the tool holder 1 extends outward to the far end away from the tool holder 1. The tool holder 33 is engaged with the slide rail 34 through the chute 37 and abuts against the vertical surface of the tool holder 31. The tool holder 33 passes through The fastener 36 passing through the waist-shaped groove 35 forms a detachable connection with the tool holder 31 , and the fastener 36 is a screw and is connected with the tool holder 33 in a screw connection manner.

When the utility model is assembled, the corresponding cutting tool 32 is firstly installed on the tool holder 33 according to the bevel shape of the workpiece. The frame 31 forms a sliding fit and is connected and fixed with a fastener 36; then install the centering component 2, insert the lower end of the mandrel 21 into the slot 13, and put the positioning sleeve 22 whose outer diameter matches the diameter of the workpiece on the mandrel 21, and press the block 23 is placed on the top of the mandrel 21, the top screw 24 passes through the pressing block 23, the mandrel 21 is screwed with the screw hole 14, and the top screw 24 is tightened to fix the mandrel 21 in the slot 13; The radial spacing between the positioning sleeves 22 is adjusted, and the fasteners 36 are tightened. So far, the utility model has been assembled, and the taper shank of the cutter shank 1 is inserted into the taper sleeve of the drilling machine, and the groove processing can be started.

Of course, the above drawings and embodiments are only for explaining and illustrating the present invention, and should not be regarded as an improper limitation of the present invention. All technical solutions obtained by those skilled in the art by making equivalent adjustments and changes according to the present invention fall into the protection scope of the present invention.

Claims (7)

1. The utility model provides a chamfer ware that is used for processing shaping groove on drilling machine, includes cutter arbor (1), set firmly in centering member (2) at cutter arbor (1) top center set firmly in cutting device (3) of cutter arbor (1) top lateral part, its characterized in that: the cutting device (3) comprises a cutter holder (31) fixedly connected with the cutter bar (1), a cutting cutter (32) and a cutter seat (33) fixedly connected with the cutting cutter (32), the cutter seat (33) is in sliding fit with the cutter holder (31) and is fixedly connected with the cutter holder in a detachable mode, and the centering component (2) is fixedly connected with the cutter bar (1) in a detachable mode.

2. The chamfering device for machining the groove on the drilling machine according to claim 1, wherein: the tool rest is characterized in that a protruding sliding rail (34) is arranged on a vertical face of the tool rest (31) perpendicular to the tool bar (1), a waist-shaped groove (35) is adjacent to and parallel to the sliding rail (34) and penetrates through the tool rest (31), the sliding rail (34) and the waist-shaped groove (35) extend outwards from a junction of the vertical face of the tool rest (31) and the tool bar (1) to a far end far away from the tool bar (1), a sliding groove (37) matched with the sliding rail (34) is arranged on the tool rest (33), and the tool rest (33) is detachably and fixedly connected with the tool rest (31) through a fastener (36) penetrating through the waist-shaped groove (35) and the sliding rail (34) in a clamping manner.

3. The chamfering device for forming the groove on the drilling machine according to claim 1 or 2, wherein: cutter arbor (1) top center has decurrent jack (11), centering part (2) including lower tip with dabber (21) that jack (11) shape matches, with dabber (21) upper end swing joint's position sleeve (22), be fixed in briquetting (23) of position sleeve (22) top, briquetting (23) through top screw (24) with dabber (21) fixed connection, dabber (21) insert in jack (11) and through following the lateral part screw (12) of jack (11) with spiro union mode interlude to knife rest (31) fixed connection.

4. The chamfering device for forming the groove on the drilling machine according to claim 1 or 2, wherein: cutter arbor (1) top center has decurrent slot (13) and is located screw (14) of slot (13) bottom, centering part (2) including lower tip with dabber (21) that slot (13) shape matches, with dabber (21) upper end swing joint's position sleeve (22), be fixed in briquetting (23) of position sleeve (22) top, with top screw (24) that screw (14) match, dabber (21) insert in slot (13) and through running through briquetting (23) reach dabber (21) with screw (14) spiro union top screw (24) with knife rest (31) fixed connection.

5. The chamfering device for forming the groove on the drilling machine according to claim 1 or 2, wherein: the cutting device (3) is provided with two sets which are respectively arranged at two wings of the cutter bar (1), the cutter bar (1) and the cutter rest (31) are of an integral structure, and the lower end part of the cutter bar (1) is provided with a Morse taper shank.

6. The chamfering device for machining the groove on the drilling machine according to claim 3, wherein: the cutting device (3) is provided with two sets which are respectively arranged at two wings of the cutter bar (1), the cutter bar (1) and the cutter rest (31) are of an integral structure, and the lower end part of the cutter bar (1) is provided with a Morse taper shank.

7. The chamfering device for machining the groove on the drilling machine according to claim 4, wherein: the cutting device (3) is provided with two sets which are respectively arranged at two wings of the cutter bar (1), the cutter bar (1) and the cutter rest (31) are of an integral structure, and the lower end part of the cutter bar (1) is provided with a Morse taper shank.

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