Deburring device for cross holes in the discharge pipe of fuel injection nozzle

Abstract

A deburring device for a cross hole in a discharge pipe of a fuel injector comprises a movable base unit, a horizontal swing unit arranged on the movable base unit, a vertical swing unit arranged on the horizontal swing unit, and a deburring unit connected to both the movable base unit and the horizontal swing unit. In this way, the inner side wall of the cross hole can be automatically deburred, and the working efficiency is high.

Description

Technical Field

[0001] The invention relates to the technical field of engine component production, in particular to a device for deburring a cross hole in a discharge pipe of a fuel injection nozzle. Background Art

[0002] Please refer to Figure 7 The fuel injector discharge pipe 100 has an inner hole 110 in the middle, and two cross holes 120 are radially opened on the outer wall to communicate with the inner hole 110. The bottom of the fuel injector discharge pipe 100 is connected to a connecting base 130, and two mounting holes 131 are opened on the connecting base 130. The cross hole 120 is in the shape of a long strip, and its inner length close to the inner hole 110 is shorter than the outer length at the opening.

[0003] After the inner hole 110 and the two cross holes 120 of the fuel injector discharge pipe 100 are formed, there will be many burrs on the inner surface. The existing deburring method is manual deburring. Due to the small volume of the fuel injector discharge pipe 100 and the special shape of the cross holes 120, the effect of manual deburring is poor and the work efficiency is low. Summary of the invention

[0004] In view of this, the present invention provides a deburring device for cross holes in a discharge pipe of a fuel injection nozzle, which can automatically deburr the inner side wall of the cross hole and has high working efficiency, so as to solve the above problems.

[0005] A deburring device for cross holes in a fuel injection nozzle discharge pipe comprises a movable base unit, a horizontal swing unit arranged on the movable base unit, a vertical swing unit arranged on the horizontal swing unit, and a deburring unit connected to both the movable base unit and the horizontal swing unit.

[0006] Furthermore, the movable base unit includes a fixed plate, a first mounting plate vertically connected to the fixed plate, a first cylinder mounted on the first mounting plate, a limit block connected to the output shaft of the first cylinder, and a movable plate connected to the limit block and located above the fixed plate; a limit hole is provided on the limit block; an avoidance hole is provided on the movable plate, and the first mounting plate passes through the avoidance hole.

[0007] Furthermore, the deburring unit includes a rotary driver, a working head connected to the output end of the rotary driver, a positioning assembly sleeved on the working head, a first connecting piece connected to one end of the rotary driver away from the working head, a first movable block connected to the first connecting piece, a first rotating shaft and two first connecting blocks; the bottom of the positioning assembly is located in the limiting hole; the first end of the first movable block is connected to the first connecting piece, and the second end is provided with a first axial hole; the two first connecting blocks are respectively located at both ends of the first movable block, and a second axial hole is provided on the first connecting block corresponding to the first axial hole; the first rotating shaft passes through the first axial hole and the second axial hole.

[0008] Furthermore, the positioning assembly includes a ring mounted on the working head, an inner column arranged at the bottom of the ring, and an outer column mounted outside the inner column, the bottom of the outer column is located in the limiting hole; a hole is opened in the middle of the ring, and the working head passes through the hole; the inner column is arranged vertically to the working head.

[0009] Furthermore, the horizontal swing unit includes a first base plate installed on the movable base unit, a second cylinder arranged on the first base plate, a second mounting plate connected to the output shaft of the second cylinder, a plurality of horizontal displacement sensors arranged on the first base plate and a plurality of horizontal sensing protrusions arranged on the second mounting plate.

[0010] Furthermore, a first guide rail parallel to the second cylinder is arranged on the first bottom plate, and a first sliding block slidably connected to the first guide rail is arranged at the bottom of the second mounting plate.

[0011] Furthermore, the plurality of horizontal displacement sensors include two first sensors arranged on the first side of the first base plate and a second sensor arranged on the second side of the first base plate; the plurality of horizontal sensing protrusions include a first sensing protrusion protruding on the first side of the second mounting plate and a second sensing protrusion protruding on the second side of the second mounting plate; when the first sensing protrusion is located between the two first sensors, the second sensing protrusion corresponds to the second sensor.

[0012] Furthermore, the vertical swing unit includes a second base plate installed on the horizontal swing unit, a third mounting plate vertically connected to the second base plate, a third cylinder arranged on the top of the third mounting plate, a fourth mounting plate connected to the output shaft of the third cylinder, a plurality of vertical displacement sensors arranged on the second mounting plate, and a plurality of vertical sensing bumps arranged on the fourth mounting plate.

[0013] Furthermore, the plurality of vertical displacement sensors include two third sensors arranged on the first side of the third mounting plate and a fourth sensor arranged on the second side of the third mounting plate; the plurality of vertical sensing protrusions include a third sensing protrusion protruding on the first side of the fourth mounting plate and a fourth sensing protrusion protruding on the second side of the fourth mounting plate; when the third sensing protrusion is located between the two third sensors, the fourth sensing protrusion corresponds to the fourth sensor.

[0014] Compared with the prior art, the cross hole deburring device of the fuel injector discharge pipe of the present invention comprises a movable base unit, a horizontal swing unit arranged on the movable base unit, a vertical swing unit arranged on the horizontal swing unit, and a deburring unit connected to both the movable base unit and the horizontal swing unit. In this way, the inner side wall of the cross hole can be automatically deburred, and the working efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The embodiments of the present invention are described below in conjunction with the accompanying drawings, wherein:

[0016] Figure 1 A three-dimensional schematic diagram of the cross hole deburring device in the discharge pipe of a fuel injector provided by the present invention.

[0017] Figure 2 A schematic diagram of the disassembly of the cross hole deburring device in the discharge pipe of a fuel injector provided by the present invention.

[0018] Figure 3 for Figure 2 A three-dimensional schematic diagram of the movable base unit in FIG.

[0019] Figure 4 for Figure 2 Schematic diagram of the deburring unit in FIG.

[0020] Figure 5 for Figure 2 A three-dimensional schematic diagram of the horizontal swing unit in FIG.

[0021] Figure 6 for Figure 2 A three-dimensional schematic diagram of the vertical swing unit in FIG.

[0022] Figure 7 It is a three-dimensional schematic diagram of the fuel injector drain pipe. DETAILED DESCRIPTION

[0023] The specific embodiments of the present invention are further described in detail below based on the accompanying drawings. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0024] Please refer to Figure 1 and Figure 2 The cross hole deburring device in the discharge pipe of a fuel injector provided by the present invention includes a movable base unit 10, a horizontal swing unit 20 arranged on the movable base unit 10, a vertical swing unit 30 arranged on the horizontal swing unit 20, and a deburring unit 40 connected to both the movable base unit 10 and the horizontal swing unit 20.

[0025] Please refer to Figure 3 The movable base unit 10 includes a fixed plate 11, a first mounting plate 12 vertically connected to the fixed plate 11, a first cylinder 13 mounted on the first mounting plate 12, a limit block 15 connected to the output shaft of the first cylinder 13, and a movable plate 14 connected to the limit block 15 and located above the fixed plate 11.

[0026] The limiting block 15 is provided with a limiting hole 151 .

[0027] The movable plate 14 is provided with an avoidance hole 141 , and the first mounting plate 12 passes through the avoidance hole 141 .

[0028] Please refer to Figure 4 The deburring unit 40 includes a rotary driver 41, a working head 42 connected to the output end of the rotary driver 41, a positioning assembly 43 sleeved on the working head 42, a first connecting member 44 connected to one end of the rotary driver 41 away from the working head 42, a first movable block 45 connected to the first connecting member 44, a first rotating shaft 46 and two first connecting blocks 47.

[0029] The positioning assembly 43 includes a collar 431 sleeved on the working head 42 , an inner column 432 disposed at the bottom of the collar 431 , and an outer column 433 sleeved on the inner column 432 .

[0030] A sleeve hole 4311 is formed in the middle of the sleeve ring 431, and the working head 42 passes through the sleeve hole 4311. The inner column 432 is vertically arranged with the working head 42.

[0031] The bottom of the outer column 433 is located in the limiting hole 151 of the limiting block 15 .

[0032] The first end of the first movable block 45 is connected to the first connecting member 44, and the second end is provided with a first axial hole; the two first connecting blocks 47 are respectively located at the two ends of the first movable block 45, and the first connecting blocks 47 are provided with second axial holes corresponding to the first axial holes; the first rotating shaft 46 passes through the first axial hole and the second axial hole.

[0033] Please refer to Figure 5 The horizontal swing unit 20 includes a first base plate 21 mounted on the movable plate 14, a second cylinder 22 disposed on the first base plate 21, a second mounting plate 23 connected to the output shaft of the second cylinder 22, a plurality of horizontal displacement sensors disposed on the first base plate 21, and a plurality of horizontal sensing bumps disposed on the second mounting plate 23.

[0034] A second connecting block 231 is protrudingly provided at the bottom of the second mounting plate 23 , and the output shaft of the second cylinder 22 is connected to the second connecting block 231 .

[0035] A first guide rail 211 parallel to the second cylinder 22 is disposed on the first bottom plate 21 , and a first sliding block 232 slidably connected to the first guide rail 211 is disposed at the bottom of the second mounting plate 23 .

[0036] The horizontal displacement sensors include two first sensors 251 disposed on the first side of the first bottom plate 21 and a second sensor 252 disposed on the second side of the first bottom plate 21. The horizontal sensing bumps include a first sensing bump 241 protruding from the first side of the second mounting plate 23 and a second sensing bump 242 protruding from the second side of the second mounting plate 23.

[0037] When the first sensing protrusion 241 is located between the two first sensors 251 , the second sensing protrusion 242 corresponds to the second sensor 252 .

[0038] The two first sensors 251 are used to sense the front and rear extreme positions of the horizontal movement of the second mounting plate 23 , and the second sensor 252 is used to sense the center position of the second mounting plate 23 .

[0039] Please refer to Figure 6 The vertical swing unit 30 includes a second base plate 31 mounted on the second mounting plate 23, a third mounting plate 32 vertically connected to the second base plate 31, a third cylinder 33 arranged on the top of the third mounting plate 32, a fourth mounting plate 35 connected to the output shaft of the third cylinder 33, a plurality of vertical displacement sensors arranged on the second mounting plate 23, and a plurality of vertical sensing bumps arranged on the fourth mounting plate 35.

[0040] A third connection block 351 is protrudingly provided on one side of the fourth mounting plate 35 facing the third mounting plate 32 , and the output shaft of the third cylinder 33 is connected to the third connection block 351 .

[0041] A second guide rail 321 parallel to the third cylinder 33 is protruded from the third mounting plate 32 toward one side of the fourth mounting plate 35 , and a second slider 321 slidably connected to the second guide rail 321 is protruded from the fourth mounting plate 35 toward one side of the third mounting plate 32 .

[0042] The plurality of vertical displacement sensors include two third sensors 371 disposed on the first side of the third mounting plate 32 and a fourth sensor 372 disposed on the second side of the third mounting plate 32. The plurality of vertical sensing protrusions include a third sensing protrusion 361 protruding from the first side of the fourth mounting plate 35 and a fourth sensing protrusion 362 protruding from the second side of the fourth mounting plate 35.

[0043] When the third sensing protrusion 361 is located between two third sensors 371 , the fourth sensing protrusion 362 corresponds to the fourth sensor 372 .

[0044] The two third sensors 371 are used to sense the two extreme positions of the up and down movement of the fourth mounting plate 35 , and the fourth sensor 372 is used to sense the center position of the fourth mounting plate 35 .

[0045] The two first connecting blocks 47 of the deburring unit 40 are fixed on the fourth mounting plate 35 .

[0046] During operation, the first cylinder 13 drives the working head 42 to move forward to approach the cross hole 120 of the discharge pipe 100 of the fuel injection nozzle.

[0047] The second cylinder 22 drives the deburring unit 40 to swing around the outer column 433, so that the working head 42 swings in the water direction. At the same time, the third cylinder 33 drives the deburring unit 40 to move up and down, so that the working head 42 swings in the vertical direction. The swings in the two directions cooperate with each other, so that the working head 42 can move along the inner wall of the cross hole 120 and automatically deburr the inner wall of the cross hole 120.

[0048] Compared with the prior art, the deburring device for the cross hole in the discharge pipe of the fuel injector of the present invention comprises a movable base unit 10, a horizontal swing unit 20 arranged on the movable base unit 10, a vertical swing unit 30 arranged on the horizontal swing unit 20, and a deburring unit 40 connected to both the movable base unit 10 and the horizontal swing unit 20. In this way, the inner side wall of the cross hole can be automatically deburred, and the working efficiency is high.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A deburring device for cross holes in a discharge pipe of a fuel injector, characterized in that: The invention comprises a movable base unit, a horizontal swing unit arranged on the movable base unit, a vertical swing unit arranged on the horizontal swing unit and a deburring unit connected to both the movable base unit and the horizontal swing unit. The movable base unit comprises a fixed plate, a first mounting plate vertically connected to the fixed plate, a first cylinder mounted on the first mounting plate, a limit block connected to the output shaft of the first cylinder and a movable plate connected to the limit block and located above the fixed plate; a limit hole is provided on the limit block; an avoidance hole is provided on the movable plate, and the first mounting plate passes through the avoidance hole; the deburring unit comprises a rotary drive, a working head connected to the output end of the rotary drive, a positioning component sleeved on the working head, and a positioner separated from the working head by the rotary drive. The first connecting piece connected to one end of the head, the first movable block connected to the first connecting piece, the first rotating shaft and two first connecting blocks; the bottom of the positioning assembly is located in the limiting hole; the first end of the first movable block is connected to the first connecting piece, and the second end is provided with a first shaft hole; the two first connecting blocks are respectively located at the two ends of the first movable block, and the first connecting block is provided with a second shaft hole corresponding to the first shaft hole; the first rotating shaft passes through the first shaft hole and the second shaft hole, and the horizontal swing unit includes a first bottom plate installed on the movable base unit, a second cylinder arranged on the first bottom plate, a second mounting plate connected to the output shaft of the second cylinder, a plurality of horizontal displacement sensors arranged on the first bottom plate, and a plurality of horizontal sensing protrusions arranged on the second mounting plate, The vertical swing unit includes a second base plate installed on the horizontal swing unit, a third mounting plate vertically connected to the second base plate, a third cylinder arranged on the top of the third mounting plate, a fourth mounting plate connected to the output shaft of the third cylinder, a plurality of vertical displacement sensors arranged on the second mounting plate and a plurality of vertical sensing protrusions arranged on the fourth mounting plate. The positioning assembly includes a ring mounted on the working head, an inner column arranged at the bottom of the ring and an outer column mounted on the outside of the inner column, and the bottom of the outer column is located in the limiting hole; a sleeve hole is opened in the middle of the ring, and the working head passes through the sleeve hole; the inner column is vertically arranged to the working head, and the two first connecting blocks of the deburring unit are fixed on the fourth mounting plate.

2. The cross hole deburring device in the discharge pipe of a fuel injection nozzle according to claim 1, characterized in that: The first bottom plate is provided with a first guide rail parallel to the second cylinder, and the bottom of the second mounting plate is provided with a first sliding block slidably connected to the first guide rail.

3. The cross hole deburring device in the discharge pipe of a fuel injection nozzle according to claim 1, characterized in that: The plurality of horizontal displacement sensors include two first sensors disposed on a first side of a first base plate and a second sensor disposed on a second side of the first base plate; the plurality of horizontal sensing protrusions include a first sensing protrusion protruding from a first side of a second mounting plate and a second sensing protrusion protruding from a second side of the second mounting plate; when the first sensing protrusion is located between the two first sensors, the second sensing protrusion corresponds to the second sensor.

4. The cross hole deburring device in the discharge pipe of a fuel injection nozzle according to claim 1, characterized in that: The plurality of vertical displacement sensors include two third sensors arranged on the first side of the third mounting plate and a fourth sensor arranged on the second side of the third mounting plate; the plurality of vertical sensing protrusions include a third sensing protrusion protruding on the first side of the fourth mounting plate and a fourth sensing protrusion protruding on the second side of the fourth mounting plate; when the third sensing protrusion is located between the two third sensors, the fourth sensing protrusion corresponds to the fourth sensor.

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