Deburring device for inner wall of oil hole in small end of connecting rod

Abstract

The utility model discloses a deburring device for the inner wall of an oil hole in the small end of a connecting rod and belongs to the technical field of connecting rod machining. A deburring device for the inner wall of an oil hole in the small end of a connecting rod comprises a workbench and further comprises a vertical plate fixedly arranged on the workbench, a fixing plate is arranged on the vertical plate in a lifting mode, and a grinding assembly is arranged on the fixing plate; the placing table is rotationally arranged on the working table, a first positioning column is fixedly arranged on the placing table, a second positioning column is arranged on the placing table in a sliding mode, and a driving part used for driving the second positioning column to slide is arranged on the placing table; the first positioning column is fixedly arranged on the placing table, the second positioning column is arranged on the placing table in a sliding mode, connecting rods of different specifications can be clamped, the fixing plate is arranged on the vertical plate in a lifting mode, the position of the grinding rod can be adjusted, the connecting rods of different thicknesses can be ground, and the use range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of connecting rod processing, in particular to a device for deburring the inner wall of an oil hole at a small end of a connecting rod. Background Art

[0002] The connecting rod connects the piston and crankshaft, transmitting the piston's force to the crankshaft and converting the piston's reciprocating motion into rotational motion. The connecting rod body consists of three parts: the part that connects to the piston pin is called the small end, the part that connects to the crankshaft is called the big end, and the rod connecting the small and big ends is called the connecting rod shaft. The small end of the connecting rod is usually a thin-walled, annular structure. To reduce wear between the small end and the piston pin, a thin-walled bronze bushing is press-fitted into the small end hole. Holes or grooves are drilled or milled into the small end and bushing to allow splashing oil to lubricate the mating surfaces of the bushing and piston pin. During the connecting rod manufacturing process, burrs inevitably form at the intersection of the small end hole and the oil hole, as well as on the inner surface. To meet production requirements and ensure optimal performance, these burrs must be removed.

[0003] At present, most methods of deburring are manual operations, which increases the labor intensity of workers. In addition, due to human factors such as unskilled operation, the deburring process is unstable, which affects product quality. In addition, the specifications of connecting rods are different, and the diameters of the small head hole and the oil hole are also inconsistent, which makes deburring difficult. Utility Model Content

[0004] The utility model aims to solve the problems of unstable manual deburring in the prior art and inconvenience in deburring connecting rods of various specifications, and proposes a deburring device for the inner wall of the oil hole at the small end of the connecting rod.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A device for deburring the inner wall of an oil hole at the small end of a connecting rod comprises a workbench, and further comprises: a vertical plate fixedly arranged on the workbench, a fixed plate being raised and lowered on the vertical plate, and a grinding assembly being provided on the fixed plate; a placement table rotatably arranged on the workbench, a first positioning column being fixedly arranged on the placement table, a second positioning column being slidably provided on the placement table, and a driving part for driving the second positioning column to slide being provided on the placement table.

[0007] In order to facilitate the driving of the fixed plate to rise and fall, preferably, a limiting groove is provided on the vertical plate, one end of the fixed plate is slidably set in the limiting groove, a first screw is rotatably set in the limiting groove, the fixed plate is threadedly connected to the first screw, and a first knob is fixedly set on one end of the first screw extending out of the limiting groove.

[0008] In order to be able to insert the grinding brush into the oil hole, further, an electric telescopic cylinder is fixedly provided on the fixed plate, a mounting plate is fixedly provided on the output end of the electric telescopic cylinder, the grinding assembly is provided on the mounting plate, and a sliding rod is fixedly provided on the fixed plate, and the mounting plate is slidably connected to the sliding rod.

[0009] In order to facilitate the clamping of the connecting rod, the driving part further includes a handle, a guide groove is opened on the placement table, a slider is slidingly arranged in the guide groove, the second positioning column is fixedly connected to the slider, and a third screw is rotatably arranged in the guide groove, the slider is threadedly connected to the third screw, and the end of the third screw extending out of the guide groove is fixedly connected to the handle.

[0010] Furthermore, the polishing assembly includes a polishing rod, a polishing brush is fixedly provided on the polishing rod, a motor is fixedly provided on the mounting plate, an adapter is fixedly provided on the output end of the motor, the polishing rod is inserted into the adapter, and a screw for fixing the polishing rod is threadedly connected on the adapter.

[0011] Preferably, a rotating seat is fixedly provided on the workbench, a column is fixedly provided on the bottom of the placement table, the end of the column away from the placement table is rotatably connected to the rotating seat, and multiple groups of threaded holes are equidistantly provided on the column, a second screw is threadedly connected to the rotating seat, and one end of the second screw is threadedly connected to the threaded hole.

[0012] Compared with the prior art, the present invention provides a deburring device for the inner wall of the oil hole at the small end of the connecting rod, which has the following beneficial effects:

[0013] 1. The deburring device for the inner wall of the oil hole at the small end of the connecting rod can clamp connecting rods of different specifications by fixing a first positioning column on the placement table and sliding a second positioning column. The fixing plate can be raised and lowered on the vertical plate to adjust the position of the grinding rod, so as to meet the needs of grinding connecting rods of different thicknesses and expand the scope of use.

[0014] 2. The deburring device for the inner wall of the oil hole at the small end of the connecting rod starts the electric telescopic cylinder to extend the grinding brush into the oil hole. Then the motor drives the grinding rod and the grinding brush to rotate, which can remove the burrs in the oil hole and improve the use effect. In addition, by inserting the grinding rod into the adapter and then fixing it in the adapter with screws, it is convenient to assemble and disassemble. Different grinding brushes can be replaced according to the diameter of the oil hole to improve the grinding effect.

[0015] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The utility model can clamp connecting rods of different specifications by fixing the first positioning column on the placement table and sliding the second positioning column. The fixing plate is raised and lowered and set on the vertical plate to adjust the position of the grinding rod to meet the needs of grinding connecting rods of different thicknesses, thereby improving the scope of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic structural diagram of a deburring device for the inner wall of the oil hole at the small end of a connecting rod proposed by the present invention;

[0017] Figure 2 This is a cross-sectional view of a deburring device for the inner wall of the oil hole at the small end of a connecting rod proposed by the utility model;

[0018] Figure 3 This utility model proposes a deburring device for the inner wall of the oil hole at the small end of the connecting rod Figure 2 Enlarged view of part A;

[0019] Figure 4 This is a structural schematic diagram of a column for a deburring device on the inner wall of an oil hole at the small end of a connecting rod proposed by the utility model.

[0020] In the figure: 1. workbench; 2. vertical plate; 201. limit slot; 202. first screw; 203. first knob; 3. placement table; 301. column; 302. rotating seat; 303. second screw; 304. threaded hole; 305. guide groove; 4. first positioning column; 401. second positioning column; 402. slider; 403. third screw; 404. handle; 5. fixing plate; 501. slide rod; 6. electric telescopic cylinder; 601. mounting plate; 7. motor; 701. adapter; 8. grinding brush; 801. grinding rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] Example:

[0024] Reference Figure 1-Figure 4 A deburring device for the inner wall of the oil hole at the small end of a connecting rod comprises a workbench 1, a support leg is fixedly arranged at the bottom of the workbench 1 for supporting the workbench 1, and further comprises: a vertical plate 2 is fixedly arranged on the workbench 1, a fixed plate 5 is lifted and lowered on the vertical plate 2, and a grinding assembly is arranged on the fixed plate 5. By lifting and lowering the fixed plate 5 on the vertical plate 2, the position of the grinding assembly can be adjusted according to the thickness of the connecting rod, so that the grinding brush 8 can be extended into the oil hole for grinding, which is convenient for removing burrs in the oil hole and improving product quality; a placing table 3 is rotatably arranged on the workbench 1, a first positioning column 4 is fixedly arranged on the placing table 3, and a first positioning column 4 is slidably arranged on the placing table 3. There are two positioning columns 401, and a driving part for driving the second positioning column 401 to slide is provided on the placement table 3. When in use, the connecting rod is placed on the placement table 3, so that the first positioning column 4 is located in the small head hole of the connecting rod and is against the inner wall of the small head hole. At this time, the second positioning column 401 is located in the large head hole. The driving part brings the second positioning column 401 closer to the first positioning column 4, so that the connecting rod can be fixed on the placement table 3. On the one hand, it can prevent the connecting rod from moving during the deburring process, affecting normal use. On the other hand, by adjusting the position of the second positioning column 401, connecting rods of various specifications can be fixed and deburred, thereby improving the use effect.

[0025] Reference Figure 1 A limiting groove 201 is opened on the vertical plate 2, and one end of the fixing plate 5 is slidably set in the limiting groove 201. A first screw 202 is rotatably set in the limiting groove 201, and the fixing plate 5 is threadedly connected to the first screw 202, and a first knob 203 is fixedly set at one end of the first screw 202 extending out of the limiting groove 201. When in use, the first knob 203 is used to rotate the first screw 202 to drive the fixing plate 5 to slide up and down along the limiting groove 201. The height of the grinding brush 8 can be adjusted according to the thickness of the connecting rod to increase the range of use.

[0026] Reference Figure 1 and Figure 2 An electric telescopic cylinder 6 is fixedly provided on the fixed plate 5, and a mounting plate 601 is fixedly provided at the output end of the electric telescopic cylinder 6. The grinding assembly is set on the mounting plate 601, and a sliding rod 501 is fixedly provided on the fixed plate 5. Two groups of sliding rods 501 are symmetrically provided, and the mounting plate 601 is slidably connected to the sliding rod 501. When in use, by fixing the electric telescopic cylinder 6 on the fixed plate 5, not only can the grinding brush 8 be extended into the oil hole, which is convenient for grinding the oil hole, but also the grinding brush 8 can be made to slide back and forth, thereby further improving the grinding effect, reducing the wear of the grinding brush 8, and improving the use effect.

[0027] Reference Figure 1 and Figure 2The driving part can use a cylinder or a hydraulic cylinder to drive the second positioning column 401 to slide. Here, we design the driving part as a handle 404, and a guide groove 305 is opened on the placement table 3. A slider 402 is slidably provided in the guide groove 305 to fix the second positioning column 401 and the slider 402, and a third screw 403 is rotatably provided in the guide groove 305, and the slider 402 is threadedly connected to the third screw 403, and the end of the third screw 403 extending out of the guide groove 305 is fixedly connected to the handle 404. When in use, by placing the connecting rod on the placement table 3, the handle 404 drives the third screw 403 to rotate, and the slider 402 and the second positioning column 401 can be driven to slide along the guide groove 305. With the cooperation of the first positioning column 4, the connecting rod is fixed on the placement table 3, and the center point connection line of the first positioning column 4 and the second positioning column 401 is parallel to the axis of the third screw 403.

[0028] Reference Figure 1-Figure 3 The grinding assembly includes a grinding rod 801, on which a grinding brush 8 is fixedly arranged. The material of the grinding brush 8 is ceramic or silicon carbide, preferably silicon carbide. A motor 7 is fixedly arranged on the mounting plate 601, and an adapter 701 is fixedly arranged at the output end of the motor 7. The grinding rod 801 is inserted into the adapter 701, and a screw for fixing the grinding rod 801 is threadedly connected to the adapter 701. When in use, the electric telescopic cylinder 6 is started to make the grinding brush 8 extend into the oil hole, and then the motor 7 drives the grinding rod 801 and the grinding brush 8 to rotate, so that the burrs in the oil hole can be removed, thereby improving the use effect. Moreover, by inserting the grinding rod 801 into the adapter 701 and then fixing it in the adapter 701 with screws, it is convenient to assemble and disassemble, and different grinding brushes 8 can be replaced according to the diameter of the oil hole to improve the grinding effect.

[0029] Reference Figure 1 and Figure 4 A rotating seat 302 is fixedly provided on the workbench 1, and a column 301 is fixedly provided at the bottom of the placing table 3, and the end of the column 301 away from the placing table 3 is rotatably connected to the rotating seat 302, and a plurality of groups of threaded holes 304 are equidistantly provided on the column 301, and the threaded holes 304 are provided with two to twenty groups, preferably eleven groups. A second screw 303 is threadedly connected to the rotating seat 302, and one end of the second screw 303 is threadedly connected to the threaded hole 304, and a second knob is fixedly provided on the other end of the second screw 303. When in use, the second screw 303 is rotated by the second knob to move it away from the threaded hole 304. At this time, the position of the placing table 3 can be adjusted so that the axis of the oil hole coincides with the axis of the polishing rod 801, which is suitable for connecting rods with inclined oil holes to improve the use effect.

[0030] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A deburring device for the inner wall of the oil hole at the small end of a connecting rod, comprising a workbench (1), characterized in that: Also includes: A vertical plate (2) is fixedly arranged on the workbench (1), a fixed plate (5) is lifted and arranged on the vertical plate (2), and a grinding assembly is arranged on the fixed plate (5); A placement table (3) is rotatably arranged on the workbench (1), a first positioning column (4) is fixedly arranged on the placement table (3), a second positioning column (401) is slidably arranged on the placement table (3), and a driving part for driving the second positioning column (401) to slide is provided on the placement table (3).

2. A deburring device for the inner wall of the oil hole at the small end of a connecting rod according to claim 1, characterized in that: A limiting groove (201) is provided on the vertical plate (2), one end of the fixed plate (5) is slidably arranged in the limiting groove (201), a first screw rod (202) is rotatably arranged in the limiting groove (201), the fixed plate (5) is threadedly connected to the first screw rod (202), and a first knob (203) is fixedly arranged on one end of the first screw rod (202) extending out of the limiting groove (201).

3. A deburring device for the inner wall of the oil hole at the small end of a connecting rod according to claim 2, characterized in that: An electric telescopic cylinder (6) is fixedly provided on the fixed plate (5), a mounting plate (601) is fixedly provided on the output end of the electric telescopic cylinder (6), the polishing assembly is provided on the mounting plate (601), and a sliding rod (501) is fixedly provided on the fixed plate (5), and the mounting plate (601) is slidably connected to the sliding rod (501).

4. A deburring device for the inner wall of the oil hole at the small end of a connecting rod according to claim 3, characterized in that: The driving part includes a handle (404), a guide groove (305) is provided on the placement table (3), a slider (402) is slidably provided in the guide groove (305), the second positioning column (401) is fixedly connected to the slider (402), and a third screw (403) is rotatably provided in the guide groove (305), the slider (402) is threadedly connected to the third screw (403), and one end of the third screw (403) extending out of the guide groove (305) is fixedly connected to the handle (404).

5. A deburring device for the inner wall of the oil hole at the small end of a connecting rod according to claim 4, characterized in that: The polishing assembly comprises a polishing rod (801), a polishing brush (8) is fixedly provided on the polishing rod (801), a motor (7) is fixedly provided on the mounting plate (601), an adapter (701) is fixedly provided on the output end of the motor (7), the polishing rod (801) is plugged into the adapter (701), and a screw for fixing the polishing rod (801) is threadedly connected to the adapter (701).

6. The device for deburring the inner wall of the oil hole at the small end of the connecting rod according to claim 1, characterized in that: A rotating seat (302) is fixedly provided on the workbench (1), a column (301) is fixedly provided on the bottom of the placement table (3), one end of the column (301) away from the placement table (3) is rotatably connected to the rotating seat (302), and a plurality of groups of threaded holes (304) are equidistantly provided on the column (301), a second screw rod (303) is threadedly connected to the rotating seat (302), and one end of the second screw rod (303) is threadedly connected to the threaded hole (304).

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