Clamp for machining engine crankshaft

Abstract

The clamp for engine crankshaft machining comprises a machining table, a supporting plate is installed on the top of the machining table, a fixing base is installed on the inner side of the supporting plate, a circular plate is rotationally connected to the inner side of the fixing base, and a discharging device for storing a crankshaft body is installed on the top of the fixing base. When a first clamping groove and a second clamping groove are right below, a clamped crankshaft body can fall into a hole groove formed in the connecting base to be positioned, then the crankshaft body can be fixed by controlling a hydraulic rod to be machined, the crankshaft is taken away after machining is finished, the next group of crankshafts can be conveyed to the inner side of the connecting base again to be machined, and the machining efficiency is improved. The automatic discharging and clamping and fixing functions are achieved, when the supporting plate moves to adapt to crankshafts of different lengths, the supporting seat can be synchronously driven to move, crankshaft bodies of different lengths can be conveniently clamped and fixed, the telescopic length of the arranged hydraulic rod is kept unchanged, and the operation of modifying a hydraulic system is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of engine parts processing, in particular to a clamp for processing an engine crankshaft. Background Art

[0002] The crankshaft is the most important component in the engine. It bears the force transmitted from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine to work. The crankshaft receives the centrifugal force of the rotating mass and the periodically changing gas inertia force, which makes the crankshaft subject to bending and torsional loads.

[0003] The processing of crankshafts includes various processes such as turning, milling and grinding. During the crankshaft processing, the crankshaft needs to be fixed with a clamp. However, the clamp in the prior art requires manual placement of the crankshaft on the clamp to work, which brings inconvenience to the actual operation. In addition, multiple adjustments are required for crankshafts of different lengths, which is relatively cumbersome.

[0004] Therefore, it is necessary to provide a clamp for machining an engine crankshaft to solve the above-mentioned technical problems. Summary of the invention

[0005] The purpose of the present invention is to provide a clamp for processing engine crankshafts to solve the above-mentioned background technology. The clamp in the prior art requires manual placement of the crankshaft on the clamp one by one to work, which brings inconvenience in actual operation, and multiple adjustments are required for crankshafts of different lengths, which is relatively cumbersome. The technical solution of the present invention addresses the technical problem that the prior art solution is too single and provides a solution that is significantly different from the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fixture for processing an engine crankshaft, comprising a processing table, a support plate is installed on the top of the processing table, a fixed seat is installed on the inner side of the support plate, a circular plate is rotatably connected to the inner side of the fixed seat, a unloading device for storing the crankshaft body is installed on the top of the fixed seat, through holes are provided at the upper and lower ends of the inner side of the fixed seat, an adjustment mechanism that can drive the support plate to move is installed at one end of the top of the processing table, and a clamping mechanism is installed at the bottom of the fixed seat.

[0007] Preferably, a first motor with an output end connected to one end of a circular plate is installed at one end of the fixing seat on the left side, and a first slot matching the front end of the crankshaft is formed at equal angles on the outer wall of one end of the circular plate on the left side.

[0008] Preferably, a second groove matching the output end of the crankshaft is formed at an equal angle on the outer wall of one end of the circular plate on the right side.

[0009] Preferably, the adjustment mechanism includes a first groove opened at the front and rear ends of one side of the top of the processing table, a threaded rod is rotatably connected inside the first groove, and a threaded seat fixed to the bottom of the support plate is installed on the outer wall of the threaded rod.

[0010] Preferably, a top groove is opened at one end of the top of the processing table, and a second motor is arranged at the protruding end of the top groove. One end of the threaded rod is connected to a rotating rod passing through the top groove. The two rotating rods are connected by a transmission assembly, and the transmission assembly is driven by the second motor.

[0011] Preferably, the clamping mechanism includes support seats installed at both ends of the top of the processing table, a connecting seat fixed to the bottom of the fixed seat is installed at one end of the top of the support seat, and a hydraulic rod is installed on the outer side of the top of the support seat.

[0012] Preferably, a second groove is opened at the center of one end of the top of the processing table, a fixing rod is installed inside the second groove, and a movable seat fixed to the bottom of the support seat is movably installed on the outer wall of the fixing rod.

[0013] Preferably, electrically controlled rotating support rods are equidistantly arranged from top to bottom at the opposite end inside the unloading device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When the present invention is used, the staff first places the crankshafts of the same model on the inner sides of the two unloading devices in sequence, and each crankshaft is supported by a support rod. During the process of placing the crankshaft, the second motor driving the transmission assembly is controlled by the length of the crankshaft so that the two sets of rotating rods synchronously drive the two threaded rods to rotate to realize the movement of the support plate, so that the distance between the two unloading devices can just support the crankshaft body, and the present invention can be applied to crankshafts of different lengths. The present invention can realize the sequential unloading of crankshafts by electrically controlling the rotation of the support rods. The support rods from bottom to top rotate in sequence, so that the crankshafts can move downward in sequence. When the crankshaft body falls on the inner side of the fixing seat, the front end and the output end of the crankshaft body are respectively engaged in the first slot and the second slot. At this time, the second motor starts to rotate to drive the circular plate to continue to rotate and transport the crankshaft body. The crankshaft body will fall on the inner side of the fixing seat for transportation in sequence, thereby realizing automatic unloading. In the present invention, when the first clamping slot is directly below the second clamping slot, the engaged crankshaft body will fall into the hole slot opened in the connecting seat for positioning, and then the crankshaft body can be fixed by controlling the hydraulic rod for processing steps. After the processing is completed, the crankshaft is taken away, and the next group of crankshafts will be transported to the inside of the connecting seat for processing again, thereby realizing automated material unloading and clamping and fixing. Moreover, when the support plate moves to adapt to crankshafts of different lengths, the support seat will be driven to move synchronously, which is convenient for clamping and fixing crankshaft bodies of different lengths. Moreover, the telescopic length of the set hydraulic rod remains unchanged, avoiding the need to modify the operation of the hydraulic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional Figure 1 ; Figure 2 The three-dimensional Figure 2 ; Figure 3 The present invention eliminates the three-dimensional structure of the crankshaft. Figure 1 ; Figure 4 The present invention eliminates the three-dimensional structure of the crankshaft. Figure 2 ; Figure 5 It is a schematic diagram of the top view of the processing table of the present invention; Figure 6 It is a schematic diagram of the internal structure of the feeding device of the present invention.

[0016] In the figure: 1. processing table; 2. support plate; 3. fixed seat; 4. circular plate; 5. unloading device; 6. adjustment mechanism; 601. first groove; 602. threaded rod; 603. threaded seat; 7. clamping mechanism; 701. support seat; 702. connecting seat; 703. hydraulic rod; 8. first motor; 9. first slot; 10. second slot; 11. top slot; 12. second motor; 13. rotating rod; 14. transmission assembly; 15. second groove; 16. fixed rod; 17. movable seat; 18. support rod. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0019] See also Figure 1-6 A clamp for processing an engine crankshaft comprises a processing table 1, a support plate 2 is installed on the top of the processing table 1, a fixed seat 3 is installed on the inner side of the support plate 2, a circular plate 4 is rotatably connected to the inner side of the fixed seat 3, a feeding device 5 for storing a crankshaft body is installed on the top of the fixed seat 3, through holes are opened at the upper and lower ends of the inner side of the fixed seat 3, an adjusting mechanism 6 that can drive the support plate 2 to move is installed at one end of the top of the processing table 1, and a clamping mechanism 7 is installed at the bottom of the fixed seat 3.

[0020] like Figure 1-6 As shown, a first motor 8 with an output end connected to one end of a circular plate 4 is installed at one end of the left fixed seat 3, and a first slot 9 matching the front end of the crankshaft is provided at equal angles on the outer wall of one end of the left circular plate 4. The first slot 9 is used to engage the front end of the crankshaft.

[0021] like Figure 1-6 As shown, the outer wall of one end of the circular plate 4 on the right side is provided with a second slot 10 matching the output end of the crankshaft at an equal angle, and the second slot 10 is used to engage the output end of the crankshaft.

[0022] like Figure 1-6As shown, the adjustment mechanism 6 includes a first groove 601 opened at the front and rear ends of one side of the top of the processing table 1, and the interior of the first groove 601 is rotatably connected to a threaded rod 602, and the outer wall of the threaded rod 602 is installed with a threaded seat 603 fixed to the bottom of the support plate 2. The set threaded rod 602 can control the movement of the threaded seat 603 so that the right side support plate 2 can be adjusted to move left and right, and then it can adapt to crankshaft bodies of different lengths, and is used to transport and clamp crankshaft bodies of different sizes.

[0023] like Figure 1-6 As shown, a top groove 11 is opened at one end of the top of the processing table 1, and a second motor 12 is arranged at the protruding end of the top groove 11. One end of the threaded rod 602 is connected to a rotating rod 13 which runs through the top groove 11. The two rotating rods 13 are connected by a transmission assembly 14, and the transmission assembly 14 is driven by the second motor 12. By driving the transmission assembly 14 with the second motor 12, the two groups of rotating rods 13 synchronously drive the two threaded rods 602 to rotate to realize the movement of the support plate 2, so that the working process is more stable.

[0024] like Figure 1-6 As shown, the clamping mechanism 7 includes a support seat 701 installed at both ends of the top of the processing table 1, and a connecting seat 702 fixed to the bottom of the fixing seat 3 is installed at one end of the top of the support seat 701. A hydraulic rod 703 is installed on the outer side of the top of the support seat 701. The crankshaft body transported through the fixing seat 3 will fall into the hole groove opened on the inner side of the connecting seat 702 for positioning, and then the crankshaft body can be fixed by controlling the hydraulic rod 703.

[0025] like Figure 1-6 As shown, a second groove 15 is opened at the center of one end of the top of the processing table 1, and a fixed rod 16 is installed inside the second groove 15. A movable seat 17 fixed to the bottom of the support seat 701 is movably installed on the outer wall of the fixed rod 16. The fixed rod 16 and the movable seat 17 enable the support seat 701 on the right to move synchronously with the support plate 2 through the connection between the connecting seat 702 and the fixed seat 3 when the support plate 2 on the right side moves, so as to facilitate the clamping and fixing of crankshaft bodies of different lengths, and the telescopic length of the hydraulic rod 703 remains unchanged, avoiding the need to modify the operation of the hydraulic system.

[0026] like Figure 1-6 As shown, electrically controlled rotating support rods 18 are equidistantly arranged at the opposite end inside the unloading device 5 from top to bottom. The unloading device 5 is provided with two types for the front end and the output end of the crankshaft, and the crankshaft can be unloaded sequentially by electrically controlling the rotation of the support rods 18. The support rods 18 from bottom to top rotate in sequence, so that the crankshaft can move downward sequentially.

[0027] Working principle: When in use, the staff first places the crankshafts of the same model on the inner sides of the two unloading devices 5 in turn, and each crankshaft is supported by the support rod 18. In the process of placing the crankshaft, the second motor 12 is controlled by the length of the crankshaft to drive the transmission assembly 14 so that the two sets of rotating rods 13 synchronously drive the two threaded rods 602 to rotate to realize the movement of the support plate 2, so that the distance between the two unloading devices 5 can just support the crankshaft body. Then the first motor 8 is used to drive the circular plate 4 on the left to rotate intermittently. Whenever the first slot 9 opened on the outer wall of the circular plate 4 on the left is directly above, the first motor 8 stops working. At this time, the rotation of the support rod 18 is controlled by electric control to realize the sequential unloading of the crankshaft. The support rods 18 from bottom to top rotate in sequence, so that the crankshaft can move downward in sequence. When the crankshaft body falls on the inner side of the fixed seat 3, the front end of the crankshaft body and the output end are aligned. They are respectively engaged in the first slot 9 and the second slot 10. At this time, the second motor 12 starts to rotate and drives the circular plate 4 to continue to rotate to transport the crankshaft body. The crankshaft body will fall into the inner side of the fixing seat 3 for transportation in sequence, realizing automatic unloading. When the first slot 9 and the second slot 10 are directly below, the engaged crankshaft body will fall into the hole groove opened in the connecting seat 702 for positioning. Then, the crankshaft body can be fixed by controlling the hydraulic rod 703 for processing steps. After the processing is completed, the crankshaft is taken away, and the next group of crankshafts will be transported to the inner side of the connecting seat 702 for processing again, realizing automatic unloading and clamping and fixing. When the support plate 2 moves to adapt to crankshafts of different lengths, it will synchronously drive the support seat 701 to move, which is convenient for clamping and fixing crankshaft bodies of different lengths. The telescopic length of the set hydraulic rod 703 remains unchanged, avoiding the need to modify the operation of the hydraulic system.

[0028] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A fixture for machining an engine crankshaft, comprising a machining table (1), characterized in that: A support plate (2) is installed on the top of the processing table (1), a fixed seat (3) is installed on the inner side of the support plate (2), a circular plate (4) is rotatably connected to the inner side of the fixed seat (3), a material discharge device (5) for storing the crankshaft body is installed on the top of the fixed seat (3), through holes are provided at the upper and lower ends of the inner side of the fixed seat (3), an adjustment mechanism (6) capable of driving the support plate (2) to move is installed at one end of the top of the processing table (1), and a clamping mechanism (7) is installed at the bottom of the fixed seat (3).

2. The engine crankshaft machining fixture according to claim 1, characterized in that: A first motor (8) having an output end connected to one end of a circular plate (4) is mounted on one end of the fixing seat (3) on the left side, and a first slot (9) matching the front end of the crankshaft is formed on the outer wall of one end of the circular plate (4) on the left side at an equal angle.

3. The engine crankshaft machining fixture according to claim 2, characterized in that: A second slot (10) matching the output end of the crankshaft is formed at an equal angle on the outer wall of one end of the circular plate (4) on the right side.

4. The engine crankshaft machining fixture according to claim 3, characterized in that: The adjustment mechanism (6) comprises a first groove (601) formed at the front and rear ends of one side of the top of the processing table (1), a threaded rod (602) being rotatably connected inside the first groove (601), and a threaded seat (603) fixed to the bottom of the support plate (2) is installed on the outer wall of the threaded rod (602).

5. The engine crankshaft machining fixture according to claim 4, characterized in that: A top groove (11) is provided at one end of the top of the processing table (1), a second motor (12) is provided at the protruding end of the top groove (11), one end of the threaded rod (602) is connected to a rotating rod (13) that passes through the top groove (11), the two rotating rods (13) are connected by a transmission assembly (14), and the transmission assembly (14) is driven by the second motor (12).

6. The engine crankshaft machining fixture according to claim 5, characterized in that: The clamping mechanism (7) comprises a support seat (701) mounted at both ends of the top of the processing table (1), a connecting seat (702) fixed to the bottom of the fixing seat (3) is mounted on one end of the top of the support seat (701), and a hydraulic rod (703) is mounted on the outer side of the top of the support seat (701).

7. The engine crankshaft machining fixture according to claim 6, characterized in that: A second groove (15) is provided at the centre of one end of the top of the processing table (1), a fixing rod (16) is installed inside the second groove (15), and a movable seat (17) fixed to the bottom of the support seat (701) is movably installed on the outer wall of the fixing rod (16).

8. The engine crankshaft machining fixture according to claim 7, characterized in that: Electrically controlled rotating support rods (18) are equidistantly arranged at opposite ends of the material discharge device (5) from top to bottom.

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