Deburring device and method for engine connecting rod

Abstract

The invention belongs to the technical field of connecting rod machining equipment, and particularly relates to an engine connecting rod deburring device and method.The engine connecting rod deburring device comprises a fixing assembly, a tooth-shaped blade, a ceramic fiber brush and a silicon carbide abrasive brush, a connecting rod is fixed to the fixing assembly, and the tooth-shaped blade corresponds to the tooth face of the connecting rod; the tooth-shaped blade is movably arranged on one side of the fixing assembly through the propelling assembly, and the ceramic fiber brush and the silicon carbide abrasive brush are both connected with rotating driving parts and installed on a movable arm of the robot through the rotating driving parts. After the connecting rod is fixed, the tooth surface can be automatically polished, the burr removing efficiency is high, manual burr removing operation is replaced, the labor intensity is reduced, and the connecting rod machining efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of connecting rod processing equipment, and in particular relates to a device and method for deburring an engine connecting rod. Background Art

[0002] There are many burrs on the tooth joint surface of the connecting rod, the tooth shape is complex, and the burrs on the bolt through-hole are not easy to remove. Generally, it is necessary to manually use a flat file to remove the burrs on the top surface and the plane, and then use a diamond file and a scraper to remove the burrs between the teeth and around the middle round hole. The entire deburring process is not only labor-intensive, but also inefficient and has low production efficiency. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide an engine connecting rod deburring device and method, which can quickly grind the burrs on the connecting rod tooth profile joint surface, liberate human resources and improve production efficiency.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an engine connecting rod deburring device, comprising a fixed component, a toothed blade, a ceramic fiber brush and a silicon carbide abrasive brush, the connecting rod is fixed on the fixed component, the toothed blade is arranged corresponding to the tooth surface of the connecting rod, the toothed blade is movably arranged on one side of the fixed component through a propulsion component, the ceramic fiber brush and the silicon carbide abrasive brush are both connected to a rotating drive member, and the ceramic fiber brush and the silicon carbide abrasive brush are installed on the movable arm of the robot through the rotating drive member.

[0005] Preferably, the fixing assembly comprises a fixing vertical plate, a supporting positioning member and a fixing block, the supporting positioning member is fixedly arranged on the fixing vertical plate, and the fixing block is connected to one side of the supporting positioning member through a rotary hydraulic cylinder.

[0006] Preferably, the supporting positioning member comprises a fixing column, a supporting member and a positioning block, and the fixing column and the positioning block are respectively arranged on both sides of the supporting member.

[0007] Preferably, the propulsion assembly includes a fixed seat and a movable seat, the movable seat is movably arranged on the fixed seat through the propulsion power assembly, a blade mounting block is protrudingly arranged at one end of the movable seat close to the fixed assembly, and the toothed blade is fixedly arranged on the blade mounting block.

[0008] Preferably, the propulsion power assembly includes a propulsion motor and a propulsion screw, the propulsion motor is mounted on a fixed seat, the propulsion screw is connected to an output end of the propulsion motor, and the movable seat is threadedly connected to the propulsion screw.

[0009] Preferably, the rotating driving member is a dual-output motor, and the ceramic fiber brush and the silicon carbide abrasive brush are respectively installed at both ends of the dual-output motor.

[0010] Preferably, the silicon carbide abrasive brush has a particle size of 75-85 mesh, and the diameter of the silicon carbide abrasive brush is 55 mm-65 mm.

[0011] Preferably, the silicon carbide abrasive brush is an abrasive brush with a particle size of 80 mesh, and the diameter of the silicon carbide abrasive brush is 60 mm.

[0012] Preferably, the toothed blade is tilted on the side close to the connecting rod, and the bottom of the toothed blade is tilted toward the side close to the connecting rod, with an inclination angle of 10° to 20°.

[0013] A method for deburring an engine connecting rod, using the above-mentioned engine connecting rod deburring device, the steps are: S1. Place the connecting rod on the supporting positioning piece, with the tooth surface of the connecting rod placed horizontally. The angular hydraulic cylinder drives the fixing block to rotate and press the connecting rod to fix it; S2, the propulsion power assembly pushes the moving seat forward, and the toothed blade moves along the tooth surface of the connecting rod and grinds the teeth. After the grinding is completed, the propulsion power assembly drives the moving seat back to its original position; S3, the robot moves the ceramic fiber brush to just above the bolt hole on the connecting rod, the ceramic fiber brush enters the bolt hole without rotating, and then the dual output motor drives the ceramic fiber brush to rotate, and at the same time the robot lifts the ceramic fiber brush upward until the bottom of the ceramic fiber brush completely leaves the bolt hole, and the ceramic fiber brush stops rotating; S4. The robot moves the silicon carbide abrasive brush to one end of the tooth surface of the connecting rod, and then the dual output motor drives the silicon carbide abrasive brush to rotate. At the same time, the robot drives the silicon carbide abrasive brush to move along the direction of the tooth width until the entire tooth surface is polished.

[0014] Preferably, in step S2, a gap of 0.02 mm to 0.04 mm is provided between the toothed blade and the tooth surface of the connecting rod.

[0015] Preferably, in step S2, the moving speed of the toothed blade is 300 mm / min.

[0016] Preferably, in step S3, the rotation speed of the ceramic fiber brush is 4500 r / min, and the speed at which the robot lifts the ceramic fiber brush upward is 30 mm / min.

[0017] Preferably, in step S4, the rotation speed of the silicon carbide abrasive brush is 3000 r / min, and the speed at which the robot drives the silicon carbide abrasive brush to move is 200 mm / min.

[0018] Compared with the prior art, the above technical solution has the following beneficial effects: The present invention fixes the connecting rod on the fixing component, the toothed blade is arranged corresponding to the tooth surface of the connecting rod, the propulsion component pushes the toothed blade, the toothed blade moves along the tooth surface to grind the spaces between the teeth, the ceramic fiber brush rotates to grind the burrs in the bolt hole flat, and finally the silicon carbide abrasive brush rotates to grind the burrs on the tooth top and edge parts flat. After the connecting rod is fixed, the present invention can automatically grind the tooth surface, has high burr removal efficiency, replaces the manual deburring operation, reduces labor intensity, and improves the efficiency of connecting rod processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0021] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0022] Figure 4 It is a schematic diagram of the connecting rod structure.

[0023] Figure 5 This is a schematic diagram of the structure of the present invention without the fixing components.

[0024] Figure 6 for Figure 5 Enlarged view of point B in the middle.

[0025] Figure 7 A side view of a toothed blade.

[0026] Figure 8 for Figure 5 Enlarged view of point C in the middle.

[0027] Fig. 9 Schematic diagram of the structure of ceramic fiber brush and silicon carbide abrasive brush.

[0028] Wherein: 1. robot 2. dual output motor 3. silicon carbide abrasive brush 4. ceramic fiber brush 5. fixing assembly 6. support platform 7. connecting rod 701. bolt hole 702. tooth surface 8. propulsion assembly 9. fixed vertical plate 10. fixed column 11. support 12. angle hydraulic cylinder 13. fixed seat 14. propulsion motor 15. moving seat 16. tool 1601. blade mounting block 1602. toothed blade 17. positioning block 18. fixing block. DETAILED DESCRIPTION

[0029] Figures 1 to 9 The best embodiment of the present invention is shown below in conjunction with the attached Figures 1 to 9 The present invention is further described.

[0030] like Figure 1~2 As shown, an engine connecting rod deburring device of the present invention comprises a fixing assembly 5, a toothed blade 1602, a ceramic fiber brush 4 and a silicon carbide abrasive brush 3, a connecting rod 7 is fixedly mounted on the fixing assembly 5, the toothed blade 1602 is arranged corresponding to the teeth of the tooth surface 702 of the connecting rod 7, the toothed blade 1602 is movably arranged on one side of the fixing assembly 5 through a propulsion assembly 8, and the propulsion power assembly pushes the toothed blade 1602 to move along the tooth surface 702, thereby removing the burrs on the tooth surface 702. Grinding and smoothing, the ceramic fiber brush 4 and the silicon carbide abrasive brush 3 are both connected to a rotating drive member, and the ceramic fiber brush 4 and the silicon carbide abrasive brush 3 are installed on the movable arm of the robot 1 through the rotating drive member. After the toothed blade 1602 grinds the burrs on the tooth surface 702, the robot 1 drives the ceramic fiber brush 4 to grind the burrs on the inner hole of the bolt hole 701 in the middle of the tooth surface 702, and finally the robot 1 drives the silicon carbide abrasive brush 3 to grind the tooth top and edge burrs on the tooth surface 702.

[0031] like Figure 3~4 As shown, the fixing assembly 5 includes a fixing plate 9, a supporting positioning member and a fixing block 18. The supporting positioning member is fixedly arranged on the side of the fixing plate 9. The fixing block 18 is connected to one side of the fixing supporting positioning member through an angle hydraulic cylinder 12. The supporting positioning member first determines the position of the connecting rod 7, and then the angle hydraulic cylinder 12 rotates the fixing block 18 so that the fixing block 18 presses and fixes the connecting rod 7, which is convenient for subsequent grinding of burrs. Specifically, the supporting positioning member includes a fixing column 10, a supporting member 11 and a fixing block 17. The fixing column 10 and the fixing block 17 are respectively arranged on both sides of the supporting member 11, as shown in FIG. Figure 3 One end of the connecting rod 7 shown is arranged in a circular ring shape, and teeth are arranged on two planes of the circular ring, and the two planes are tooth surfaces 702. A bolt hole 701 is arranged in the middle of the tooth surface 702, and a circular hole is arranged at the other end of the connecting rod 7. The circular hole is clamped on the outer side of the fixing column 10, and at the same time, the circular end of the connecting rod 7 is pressed against the positioning block 17, and the circular part is placed on the support 11. The angular hydraulic cylinder 12 rotates the fixing block 18 to press and fix the connecting rod 7.

[0032] like Figures 5 and 6As shown, the fixed component 5 and the propulsion component 8 are both arranged on the support platform 6, and the fixed component 5 and the propulsion component 8 are arranged opposite to each other. The propulsion direction of the propulsion component 8 is perpendicular to the fixed vertical plate 9. The propulsion component includes a fixed seat 13 and a movable seat 15. The fixed seat 13 is fixedly arranged on the support platform 6, and the movable seat 15 is movably arranged on the fixed seat 13 through the propulsion power component. The tool 16 is installed on the end of the movable seat 15 close to the fixed component. Specifically, a blade mounting block 1601 is protrudingly provided at the end of the movable seat 15 close to the fixed component. There are two blade mounting blocks 1601. Two toothed blades 1602 are respectively fixed on the blade mounting blocks 1601. The two toothed blades 1602 respectively correspond to the two tooth surfaces 702 of the connecting rod 7. The movable seat 15 drives the two toothed blades 1602 to move together and grinds the teeth between the two tooth surfaces 702 at the same time. In this embodiment, the propulsion power assembly includes a propulsion motor 14 and a propulsion screw. The propulsion motor 14 is installed on the fixed seat 13. The propulsion screw is connected to the output end of the propulsion motor 14. The propulsion screw is arranged perpendicular to the fixed vertical plate 9. The movable seat 15 is threadedly connected to the propulsion screw. A guide rail is arranged on the fixed seat 13. The movable seat 15 is slidably connected to the guide rail of the fixed seat 13. The propulsion motor 14 drives the propulsion screw to rotate when it works, and the movable seat 15 translates along the propulsion screw.

[0033] like Figure 7 As shown, the toothed blade 1602 is tilted on the side close to the connecting rod 7, and the bottom of the toothed blade 1602 is tilted toward the side close to the connecting rod, with an inclination angle of 10°~20°. In this embodiment, the toothed blade 1602 is tilted at 15° on the side close to the connecting rod 7.

[0034] like Figures 8 and 9 As shown, in this embodiment, the rotating driving member is a dual-output motor 2, and the ceramic fiber brush 4 and the silicon carbide abrasive brush 3 are respectively installed at both ends of the dual-output motor 2. The dual-output motor 2 is rotatably installed at the front end of the robot arm 1, and the robot 1 drives the ceramic fiber brush 4 and the silicon carbide abrasive brush 3 to move. The silicon carbide abrasive brush 3 uses an abrasive brush with a particle size of 75 to 85. In this embodiment, the silicon carbide abrasive brush 3 uses an abrasive brush with a particle size of 80. The diameter of the silicon carbide abrasive brush 3 is 55 mm to 65 mm. In this embodiment, the diameter of the silicon carbide abrasive brush 3 is 60 mm.

[0035] The present invention provides a method for deburring an engine connecting rod using the above device, comprising the following steps: S1. Place the connecting rod 7 at the supporting positioning piece, with the tooth surface 702 of the connecting rod 7 placed horizontally, and the angular hydraulic cylinder 12 drives the fixing block 18 to rotate and press and fix the connecting rod 7; S2, the propulsion power assembly pushes the moving seat 15 forward, and the toothed blade 1602 moves along the tooth surface 702 of the connecting rod 7 and grinds the teeth. After the grinding is completed, the propulsion power assembly drives the moving seat 15 to return to its original position; S3, the robot 1 moves the ceramic fiber brush to just above the bolt hole on the connecting rod, the ceramic fiber brush 4 enters the bolt hole 701 in a non-rotating state, and then the dual-output motor 2 drives the ceramic fiber brush 4 to rotate, and at the same time the robot 1 lifts the ceramic fiber brush 4 upward until the bottom of the ceramic fiber brush 4 completely leaves the bolt hole 701, and the ceramic fiber brush 4 stops rotating; S4, the robot 1 moves the silicon carbide abrasive brush 3 to one end of the tooth surface 702 of the connecting rod 7, and then the dual-output motor 2 drives the silicon carbide abrasive brush 3 to rotate. At the same time, the robot 1 drives the silicon carbide abrasive brush 3 to move along the direction of the tooth width until the entire tooth surface 702 is polished.

[0036] In step S2, when the toothed blade 1602 is grinding between teeth, a gap of 0.02 mm to 0.04 mm is set between the toothed blade 1602 and the tooth surface 702 of the connecting rod 7. In this embodiment, a gap of 0.03 mm is set between the toothed blade 1602 and the tooth surface 702 of the connecting rod 7. The purpose of this setting is to avoid damaging the tooth surface 702. The moving speed of the toothed blade 1602 during grinding is 300 mm / min.

[0037] In step S3, the aperture of the processed bolt hole 701 is 15.1mm, the diameter of the ceramic fiber brush 4 is 14mm, the ceramic fiber brush 4 enters the bolt hole 701 in a non-rotating state, the robot 1 drives the ceramic fiber brush 4 6mm down from the top of the tooth, and then the dual output motor 2 drives the ceramic fiber brush 4 to rotate at a speed of 4500r / min. The fiber filaments of the ceramic fiber brush 4 increase in diameter under the action of centrifugal force, and the burrs on the circular hole wall of the bolt hole 701 are removed by hitting. At the same time, the robot 1 drives the ceramic fiber brush 4 to move upward, and the lifting speed of the ceramic fiber brush 4 is 30mm / min. In step S4, the rotation speed of the silicon carbide abrasive brush 3 is 3000r / min, and the speed at which the robot 1 drives the silicon carbide abrasive brush 3 to move is 200mm / min.

[0038] When the present invention is in use, the connecting rod 7 is placed on the fixing assembly 5 and pressed and fixed, the propulsion motor 14 works to push the moving seat 15 forward, the toothed blade 1602 moves along the tooth surface 702 of the connecting rod 7 and grinds the teeth. After the grinding is completed, the propulsion motor 14 drives the moving seat 15 to return to its original position, and then the robot 1 moves the ceramic fiber brush 4 to the top of the bolt hole 701 on the connecting rod 7, and the ceramic fiber brush 4 enters the bolt hole 701 without rotating, and then the dual output motor 2 drives the ceramic fiber brush 4 to rotate, and at the same time, the robot 1 lifts the ceramic fiber brush 4 upward until the bottom of the ceramic fiber brush 4 completely leaves the bolt hole 701, and the ceramic fiber brush 4 stops rotating; the robot 1 then rotates the dual output motor 2 to move the silicon carbide abrasive brush 3 to one end of the tooth surface 702 of the connecting rod 7, and the dual output motor 2 drives the silicon carbide abrasive brush 3 to rotate, and at the same time, the robot 1 drives the silicon carbide abrasive brush 3 to move along the direction of the tooth width until the entire tooth surface 702 is polished. After the connecting rod 7 is fixed, the present invention can automatically grind the tooth surface 702, with high burr removal efficiency, replacing the manual burr removal operation, reducing labor intensity, and improving the processing efficiency of the connecting rod 7.

[0039] The above is only a preferred embodiment of the present invention, and does not limit the present invention in other forms. Any technician familiar with the profession may use the above disclosed technical content to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the technical solution of the present invention still belongs to the protection scope of the technical solution of the present invention.

Claims

1. An engine connecting rod deburring device, characterized in that: The invention comprises a fixed component (5), a toothed blade (1602), a ceramic fiber brush (4) and a silicon carbide abrasive brush (3); a connecting rod (7) is fixed on the fixed component (5); the toothed blade (1602) is arranged corresponding to the tooth surface (702) of the connecting rod (7); the toothed blade (1602) is movably arranged on one side of the fixed component (5) through a propulsion component (8); the ceramic fiber brush (4) and the silicon carbide abrasive brush (3) are both connected to a rotating drive member; the ceramic fiber brush (4) and the silicon carbide abrasive brush (3) are installed on a movable arm of the robot (1) through the rotating drive member.

2. The engine connecting rod deburring device according to claim 1, characterized in that: The fixing assembly (5) comprises a fixing upright plate (9), a supporting positioning member and a fixing block (18); the supporting positioning member is fixedly arranged on the fixing upright plate (9); and the fixing block (18) is connected to one side of the supporting positioning member via a rotary hydraulic cylinder (12).

3. The engine connecting rod deburring device according to claim 1, characterized in that: The propulsion assembly (8) comprises a fixed seat (13) and a movable seat (15); the movable seat (15) is movably arranged on the fixed seat (13) by means of a propulsion power assembly; a blade mounting block (1601) is protrudingly arranged at one end of the movable seat (15) close to the fixed assembly (5); and the toothed blade (1602) is fixedly arranged on the blade mounting block (1601).

4. The engine connecting rod deburring device according to claim 1, characterized in that: The rotating drive member is a dual-output motor (2), and the ceramic fiber brush (4) and the silicon carbide abrasive brush (3) are respectively mounted at two ends of the dual-output motor (2).

5. The engine connecting rod deburring device according to claim 1, characterized in that: The silicon carbide abrasive brush (3) is an abrasive brush with a particle size of 75 to 85 meshes, and the diameter of the silicon carbide abrasive brush (3) is 55 mm to 65 mm.

6. The engine connecting rod deburring device according to claim 1, characterized in that: The toothed blade (1602) is arranged to be inclined on the side close to the connecting rod (7), and the bottom of the toothed blade (1602) is inclined towards the side close to the connecting rod (7), with an inclination angle of 10° to 20°.

7. A method for deburring an engine connecting rod, characterized in that: The engine connecting rod deburring device according to any one of claims 1 to 6 is used, and the steps are as follows: S1. Place the connecting rod (7) on the supporting positioning member, with the tooth surface (702) of the connecting rod (7) placed horizontally, and the angular hydraulic cylinder (12) drives the fixing block (18) to rotate and press the connecting rod (7) to fix it; S2, the propulsion power assembly pushes the movable seat (15) forward, and the toothed blade (1602) moves along the tooth surface (702) of the connecting rod (7) and grinds the space between the teeth. After the grinding is completed, the propulsion power assembly drives the movable seat (15) to return to its original position; S3, the robot (1) moves the ceramic fiber brush (4) to the position just above the bolt hole on the connecting rod (7), and the ceramic fiber brush (4) enters the bolt hole (701) in a non-rotating state, and then the dual output motor (2) drives the ceramic fiber brush (4) to rotate, and at the same time, the robot (1) lifts the ceramic fiber brush (4) upward until the bottom of the ceramic fiber brush (4) completely leaves the bolt hole (701), and the ceramic fiber brush (4) stops rotating; S4, the robot (1) moves the silicon carbide abrasive brush (3) to one end of the tooth surface (702) of the connecting rod (7), and then the dual output motor (2) drives the silicon carbide abrasive brush (3) to rotate, and at the same time, the robot (1) drives the silicon carbide abrasive brush (3) to move along the direction of the tooth width until the entire tooth surface (702) is polished.

8. The engine connecting rod deburring method according to claim 7, characterized in that: In step S2, a gap of 0.02 mm to 0.04 mm is provided between the toothed blade (1602) and the tooth surface (702) of the connecting rod (7).

9. The engine connecting rod deburring method according to claim 7, characterized in that: In step S3, the rotation speed of the ceramic fiber brush (4) is 4500 r / min, and the speed at which the robot (1) lifts the ceramic fiber brush (4) upward is 30 mm / min.

10. The engine connecting rod deburring method according to claim 7, characterized in that: In step S4, the rotation speed of the silicon carbide abrasive brush (3) is 3000 r / min, and the speed at which the robot (1) drives the silicon carbide abrasive brush (3) to move is 200 mm / min.

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