CN217831996U

CN217831996U - Automatic cutter for machining hole parts

Info

Publication number: CN217831996U
Application number: CN202220281106.3U
Authority: CN
Inventors: 王东; 舒向东
Original assignee: Sichuan Danfu Environmental Technology Co ltd
Current assignee: Sichuan Danfu Environmental Technology Co ltd
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-11-18
Anticipated expiration: 2032-02-11

Abstract

The utility model discloses an automatic cutter for processing of hole class spare part relates to part spot facing work technical field, and mainly used solves current drilling boring cutter and can leave the problem of a mar at the pore wall of being processed when moving back the sword. The main structure is as follows: including power main shaft, fixed blade holder, removal blade holder and tool bit, the terminal surface middle part of removing the blade holder is equipped with two slide rails of being connected with fixed blade holder terminal surface radial sliding formula, two be equipped with a drive slider between the slide rail, be equipped with the pull rod in the power main shaft, the one end and the actuating mechanism of pull rod are connected, and the other end is equipped with and drives slider joint complex slant drive draw-in groove, slant drive draw-in groove extends towards slide rail one end. The utility model provides a pair of an automatic tool for processing of hole class spare part, this cutter can realize the adjustment of hole size and avoid the tool bit at the in-process fish tail pore wall that withdraws from through the parallel translation of tool bit.

Description

Automatic cutter for machining hole parts

Technical Field

The utility model relates to a part spot facing work technical field especially relates to an automatic cutter for processing of hole class spare part.

Background

At present, in the mechanical manufacturing industry, when various holes with higher machining precision requirements are machined, two machining process methods are most commonly used. The first method is to use CNC, i.e. numerically controlled machine tool machining. The machine tool can adjust the tool compensation parameters at any time according to the size of the machined hole so as to ensure the precision requirement of parts. However, the numerical control machine tool is expensive, causes a large increase in production cost, and is not suitable for machining holes of parts. The second method is to use a fixed boring cutter to machine the hole. However, when the machining method is used for machining holes of parts, the size of the cutter needs to be adjusted manually in the machining process, and the size adjusting period is long. Meanwhile, after the drilling process is finished, the cutter can be withdrawn from the processed hole only after the cutter needs to stop rotating, and the cutter point is consistent with the hole in size, so that a scratch can be left on the processed hole wall at a high probability.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic cutter for processing of hole class spare part, this cutter can realize the adjustment of hole size and avoid the tool bit at the in-process fish tail pore wall that withdraws from through the parallel translation of tool bit.

In order to achieve the purpose, the utility model provides an automatic cutter for processing hole parts, which comprises a power main shaft, a fixed cutter seat, a movable cutter seat and a cutter head which are coaxially and sequentially connected, wherein the middle part of the end surface of the movable cutter seat, which is close to the fixed cutter seat, is parallelly provided with two slide rails which are connected with the end surface of the fixed cutter seat in a radial sliding manner, a driving slider is arranged between the two slide rails, a pull rod which is coaxial with the power main shaft and can axially reciprocate is arranged in the power main shaft, one end of the pull rod is connected with a driving mechanism, the other end of the pull rod extends to the end surface of the fixed cutter seat and is provided with an oblique driving clamping groove which is matched with the driving slider in a clamping manner, and the oblique driving clamping groove extends towards one end of the slide rails; the diameter of the movable cutter holder is larger than that of the fixed cutter holder.

As a further improvement, the driving mechanism includes a screw fixing seat which is coaxially arranged with the pull rod and can move along the axial direction of the pull rod in a reciprocating manner, one end of the screw fixing seat is connected with the end rotary type of the pull rod through a rotary bearing, and the other end of the screw fixing seat is connected with a driving motor in a transmission manner.

As a further improvement, be equipped with one between driving motor and the screw rod fixing base and with the coaxial setting of pull rod and ability axial pivoted drive screw, drive screw's one end and screw rod fixing base threaded connection cooperation, the other end is connected with the driving motor transmission.

As a further improvement, a motor mounting panel is arranged below the driving motor and the screw rod fixing seat, the driving motor is mounted on the motor mounting panel, and a fixing seat moving guide rail which is arranged along the axial direction of the pull rod and used for the sliding type mounting screw rod fixing seat is further arranged on the motor mounting panel.

As a further improvement, the fixed blade holder is equipped with two slide rail mounting panels with the radial sliding fit of slide rail on being close to the terminal surface of removal blade holder, the slide rail mounting panel includes along fixed blade holder radially overlap slide rail planking, the slide rail inner panel that sets up in proper order and set up the kingpin board between the two.

As a further improvement of the utility model, the cross-sectional shapes of the slide rail and the slide rail mounting plate are both V-shaped.

As a further improvement, a spring mounting part is arranged on the end face of the fixed tool holder at one end of the slide rail, and a reset spring is arranged between the spring mounting part and the end face of the slide rail.

As a further improvement of the utility model, a guide sleeve sleeved on the pull rod is arranged between the pull rod and the movable cutter holder.

As a further improvement of the utility model, a belt pulley is arranged on the outer wall of one side of the power main shaft close to the driving mechanism.

As a further improvement of the utility model, a tool apron dustproof sleeve is sleeved outside the movable tool apron.

Advantageous effects

Compared with the prior art, the utility model discloses an automatic cutter's for processing of hole class spare part advantage does:

1. the cutter comprises a power main shaft, a fixed cutter holder, a movable cutter holder and a cutter head which are coaxially connected in sequence. Two slide rails connected with the end face of the fixed cutter holder in a radial sliding manner are arranged in the middle of the end face of the movable cutter holder close to the fixed cutter holder in parallel. A driving slide block is arranged between the two slide rails. A pull rod which is coaxial with the power main shaft and can axially reciprocate is arranged in the power main shaft. One end of the pull rod is connected with the driving mechanism, and the other end of the pull rod extends to the end face of the fixed tool apron and is provided with an oblique driving clamping groove matched with the driving sliding block in a clamping mode. The oblique driving clamping groove extends towards one end of the sliding rail.

Before the tool is used for drilling parts, the tool is firstly installed on a boring machine platform of a boring cutter, parts to be machined are fixed, and then the drilling machining can be started. When drilling, the boring machine drives the power main shaft to rotate, and further drives the tool apron and the tool bit to rotate. Meanwhile, the driving mechanism drives the pull rod to move, and when the pull rod moves, the inclined driving clamping groove is matched with the driving sliding block to drive the movable tool apron, so that the tool bit moves outwards. And when the tool nose of the tool bit moves outwards to a proper size, the boring machine starts cutting. After the hole is machined, the driving mechanism drives the pull rod to move reversely to drive the movable tool apron, so that the tool tip of the tool bit moves inwards to a size smaller than the size of the machined hole, and then the tool bit retreats from the hole of the part to be machined in a circulating reciprocating mode.

By adopting the automatic cutter, a worker can drive the axial telescopic movement of the pull rod through the driving mechanism to drive the parallel movement of the cutter head, and further can realize the adjustment of the hole size. Simultaneously, drive the tool bit translation through the pull rod, the tool bit after the processing is accomplished can remove a section distance to the center in hole, and then can avoid the tool bit at the in-process fish tail pore wall that withdraws from, has guaranteed the processingquality in part hole.

2. The driving mechanism comprises a screw fixing seat which is coaxial with the pull rod and can axially reciprocate along the pull rod, one end of the screw fixing seat is rotatably connected with the end part of the pull rod through a rotary bearing, and the other end of the screw fixing seat is in transmission connection with a driving motor. The screw fixing seat is driven by the driving motor to move along the axial direction of the pull rod, so that the pull rod can be driven to move, the size of the hole can be adjusted, and the hole wall can be prevented from being scratched by the tool bit in the withdrawing process. Meanwhile, the pull rod is connected with the screw rod fixing seat through the rotary bearing, so that the pull rod and the power main shaft synchronously rotate at a high speed and the axial pushing of the screw rod fixing seat on the screw rod fixing seat is not influenced.

3. A driving screw rod which is coaxial with the pull rod and can axially rotate is arranged between the driving motor and the screw rod fixing seat, one end of the driving screw rod is in threaded connection and matching with the screw rod fixing seat, and the other end of the driving screw rod is in transmission connection with the driving motor. The driving motor drives the driving screw to axially rotate, and then the screw fixing seat in threaded connection with the driving screw can be driven to axially reciprocate. Due to the fact that the screw thread between the driving screw and the screw fixing seat is matched to control the movement of the screw fixing seat, the movement feeding amount can be accurately controlled, and the accurate adjustment of the translation distance of the tool bit can be guaranteed.

4. A motor mounting plate is arranged below the driving motor and the screw fixing seat, the driving motor is mounted on the motor mounting plate, and a fixing seat moving guide rail which is arranged along the axial direction of the pull rod and used for slidably mounting the screw fixing seat is further arranged on the motor mounting plate. Through on installing the fixing base movable guide to the screw rod fixing base, can its moving direction of accurate control.

5. And a spring mounting part is arranged on the end face of the fixed tool holder at one end of the slide rail, and a return spring is arranged between the spring mounting part and the end face of the slide rail. Through being provided with resilient means between fixed blade holder and removal blade holder, can eliminate the clearance that forms because manufacturing accuracy error accumulation between drive slider and slant drive draw-in groove, the removal blade holder, and then can promote the repeated positioning accuracy who removes the blade holder.

The invention will become more apparent from the following description when taken in conjunction with the accompanying drawings which illustrate embodiments of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is an exploded view of the present invention;

fig. 2 is a perspective view of the present invention.

Wherein: 1-driving a motor; 11-a motor mounting seat; 2-driving the screw; 3-screw rod fixing seat; 31-a slew bearing; 32-a fixed seat moving guide rail; 4-a power spindle; 41-a belt pulley; 5, fixing a tool apron; 51-a slide mounting plate; 52-a needle roller plate; 53-a guide sleeve; 54-a spring mounting portion; 6, moving the tool apron; 61-a slide rail; 62-driving the slide block; 63-a return spring; 7-a cutter head; 8-tool apron dustproof sleeve; 9-a pull rod; 91-oblique drive clamp plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Embodiments of the present invention will now be described with reference to the accompanying drawings.

Examples

The utility model discloses a specific embodiment is as shown in fig. 1-2, an automatic cutter for processing of hole class spare part, including coaxial power main shaft 4, fixed blade holder 5, removal blade holder 6 and the tool bit 7 that connects gradually. Two slide rails 61 connected with the end surface of the fixed tool apron 5 in a radial sliding manner are arranged in parallel in the middle of the end surface of the movable tool apron 6 close to the fixed tool apron 5. A driving slide block 62 is arranged between the two slide rails 61. A pull rod 9 which is coaxial with the power main shaft 4 and can axially reciprocate is arranged in the power main shaft 4. One end of the pull rod 9 is connected with the driving mechanism, and the other end extends to the end face of the fixed tool apron 5 and is provided with an inclined driving clamping groove 91 which is clamped and matched with the driving sliding block 62. The oblique driving catching groove 91 extends toward one end of the slide rail 61.

Before the tool is used for drilling parts, the tool is firstly installed on a boring machine platform of a boring cutter, a part to be machined is fixed, and then the drilling machining can be started. During drilling, the boring machine drives the power spindle 4 to rotate, and further drives the tool apron and the tool bit 7 to rotate. Meanwhile, the driving mechanism drives the pull rod 9 to move, and when the pull rod 9 moves, the inclined driving clamping groove 91 is matched with the driving sliding block 62 to drive the movable tool apron 6, so that the tool bit 7 moves outwards. When the tool tip of the tool bit 7 moves outwards to a proper size, the boring machine starts cutting. After the hole is machined, the driving mechanism drives the pull rod 9 to move reversely to drive the movable tool apron 6, so that the tool tip of the tool bit 7 moves inwards to a size smaller than the machined hole, and then the tool bit 7 retreats from the hole of the part to be machined in a circulating reciprocating mode.

By adopting the automatic cutter, a worker can drive the cutter head 7 to move in parallel by driving the axial telescopic movement of the pull rod 9 through the driving mechanism, and further can realize the adjustment of the hole size. Meanwhile, the tool bit 7 is driven to move horizontally through the pull rod 9, the tool bit 7 after machining can move a distance to the center of the hole, the hole wall can be prevented from being scratched when the tool bit 7 is withdrawn, and machining quality of the part hole is guaranteed.

In this embodiment, the diameter of the movable tool holder 6 is larger than that of the fixed tool holder 5, and a half of the difference between the diameters of the movable tool holder 6 and the fixed tool holder 5 is larger than the offset distance of the movable tool holder 6. A tool apron dustproof sleeve 8 is sleeved outside the movable tool apron 6. The tool apron dustproof sleeve 8 plays two roles in the mechanism, namely, the dustproof function and the cutting liquid function, and the accident caused by the fact that the movable tool apron falls in the high-speed rotating process is avoided.

Wherein, actuating mechanism includes and sets up and can follow pull rod 9 axial reciprocating motion's screw rod fixing base 3 with pull rod 9 is coaxial. One end of the screw fixing seat 3 is rotatably connected with the end part of the pull rod 9 through a rotary bearing 31, and the other end of the screw fixing seat is in transmission connection with a driving motor 1. Through the axial removal of driving motor 1 drive screw fixing base 3 along pull rod 9, can drive pull rod 9 and remove, and then can realize the adjustment of hole size and avoid tool bit 7 at the in-process fish tail pore wall that withdraws from. Meanwhile, as the pull rod 9 is connected with the screw fixing seat 3 through the rotary bearing, the pull rod 9 and the power spindle 4 synchronously rotate at high speed and simultaneously cannot influence the axial pushing of the screw fixing seat 3 on the screw fixing seat.

Specifically, a driving screw 2 which is coaxial with the pull rod 9 and can axially rotate is arranged between the driving motor 1 and the screw fixing seat 3. One end of the driving screw rod 2 is in threaded connection and matching with the screw rod fixing seat 3, and the other end of the driving screw rod is in transmission connection with the driving motor 1. The driving motor 1 drives the driving screw rod 2 to axially rotate, and then the screw rod fixing seat 3 in threaded connection with the driving screw rod 2 can be driven to axially reciprocate. Because it removes to adopt the screw-thread fit control between drive screw 2 and the screw rod fixing base 3, can accurate control remove the feed volume, and then can guarantee to 7 translation distance's of tool bit accurate adjustable.

In this embodiment, a motor mounting plate 11 is disposed below the driving motor 1 and the screw fixing seat 3. Driving motor 1 installs on motor mounting panel 11, still is equipped with the fixing base movable guide rail 32 that is used for slidingtype installation screw rod fixing base 3 that sets up along the pull rod 9 axial on the motor mounting panel 11. By installing the screw fixing seat 3 on the fixing seat moving guide rail 32, the moving direction thereof can be accurately controlled.

Meanwhile, two slide rail mounting plates 51 which are in radial sliding fit with the slide rails 61 are arranged on the end surface of the fixed cutter holder 5 close to the movable cutter holder 6. The rail mounting plate 51 includes a rail outer plate, a rail inner plate, and a needle roller plate 52 disposed therebetween, which are sequentially overlapped along the radial direction of the stationary blade holder. In the present embodiment, the cross-sectional shapes of the slide rail 61 and the slide rail mounting plate 51 are both V-shaped.

In this embodiment, a spring mounting portion 54 is disposed on an end surface of the fixed tool holder 5 at one end of the slide rail 61, and a return spring 63 is disposed between the spring mounting portion 54 and the end surface of the slide rail 61. By arranging the elastic device between the fixed cutter holder 5 and the movable cutter holder 6, the clearance between the driving slide block 62 and the oblique driving clamping groove 91 and between the driving slide block and the movable cutter holder 6, which is formed by accumulating manufacturing precision errors, can be eliminated, and the repeated positioning precision of the movable cutter holder 6 can be improved.

In addition, a guide sleeve 53 sleeved on the pull rod 9 is arranged between the pull rod 9 and the movable cutter holder 6, so that the pull rod 9 can move smoothly. And, a belt pulley 41 is arranged on the outer wall of the power main shaft 4 close to one side of the driving mechanism. The belt pulley 41 is in transmission connection with a power source belt on the boring machine, so that the power spindle 4 can be driven to normally run.

The present invention has been described above with reference to the preferred embodiments, but the present invention is not limited to the above-disclosed embodiments, and various modifications, equivalent combinations, which are made according to the essence of the present invention, should be covered.

Claims

1. The automatic cutter for machining hole parts is characterized by comprising a power main shaft (4), a fixed cutter seat (5), a movable cutter seat (6) and a cutter head (7), wherein the power main shaft (4), the fixed cutter seat (5), the movable cutter seat (6) and the cutter head (7) are coaxially and sequentially connected, two sliding rails (61) which are connected with the end surface of the fixed cutter seat (5) in a radial sliding manner are arranged in the middle of the end surface, close to the fixed cutter seat (5), of the movable cutter seat (6), a driving sliding block (62) is arranged between the two sliding rails (61), a pull rod (9) which is coaxial with the power main shaft (4) and can axially reciprocate is arranged in the power main shaft, one end of the pull rod (9) is connected with a driving mechanism, the other end of the pull rod extends to the end surface of the fixed cutter seat (5) and is provided with an oblique driving clamping groove (91) which is clamped and matched with the driving sliding block (62), and the oblique driving clamping groove (91) extends towards one end of the sliding rails (61); the diameter of the movable cutter holder (6) is larger than that of the fixed cutter holder (5).

2. The automatic tool for machining hole parts according to claim 1, wherein the driving mechanism comprises a screw fixing seat (3) which is coaxially arranged with the pull rod (9) and can axially reciprocate along the pull rod (9), one end of the screw fixing seat (3) is rotatably connected with the end of the pull rod (9) through a rotary bearing (31), and the other end of the screw fixing seat is in transmission connection with a driving motor (1).

3. The automatic tool for machining hole parts according to claim 2, wherein a driving screw (2) which is coaxial with the pull rod (9) and can axially rotate is arranged between the driving motor (1) and the screw fixing seat (3), one end of the driving screw (2) is in threaded connection and matching with the screw fixing seat (3), and the other end of the driving screw is in transmission connection with the driving motor (1).

4. The automatic cutting tool for processing the hole parts as claimed in claim 2 or 3, wherein a motor mounting plate (11) is arranged below the driving motor (1) and the screw fixing seat (3), the driving motor (1) is mounted on the motor mounting plate (11), and a fixing seat moving guide rail (32) which is arranged along the axial direction of the pull rod (9) and is used for slidably mounting the screw fixing seat (3) is further arranged on the motor mounting plate (11).

5. The automatic tool for processing the hole parts as claimed in claim 1, wherein two slide rail mounting plates (51) which are in radial sliding fit with the slide rails (61) are arranged on the end surface of the fixed tool apron (5) close to the movable tool apron (6), and the slide rail mounting plates (51) comprise an outer slide rail plate, an inner slide rail plate and a needle roller plate (52) arranged between the outer slide rail plate and the inner slide rail plate which are sequentially arranged in an overlapping manner along the radial direction of the fixed tool apron.

6. The automatic tool for machining hole parts as claimed in claim 5, wherein the cross-sectional shapes of the slide rail (61) and the slide rail mounting plate (51) are both V-shaped.

7. The automatic tool for machining hole parts according to claim 1, 5 or 6, wherein a spring mounting portion (54) is arranged on the end face of the fixed tool holder (5) at one end of the slide rail (61), and a return spring (63) is arranged between the spring mounting portion (54) and the end face of the slide rail (61).

8. The automatic tool for machining hole parts according to claim 1 or 5, characterized in that a guide sleeve (53) sleeved on the pull rod (9) is arranged between the pull rod (9) and the movable tool holder (6).

9. The automatic tool for machining hole parts according to claim 1, wherein a belt pulley (41) is arranged on the outer wall of one side of the power spindle (4) close to the driving mechanism.

10. The automatic tool for machining hole parts according to claim 1, wherein a tool holder dust sleeve (8) is sleeved outside the movable tool holder (6).