Special inclined hole machine tool for crankshaft processing

Abstract

The present invention discloses a special inclined hole machine tool for crankshaft processing, which relates to the technical field of crankshaft processing machine tools, including a base and a crankshaft body, the top of the base is installed with an inclined drill bit through a first driving mechanism; a fixed seat and two guide plates are fixedly connected to the base, and inclined plates are fixedly connected to both sides of the fixed seat, and a material drop channel is formed between each inclined plate and each guide plate in a one-to-one correspondence; a first side plate and a second side plate with an L-shaped cross section are rotatably installed on the fixed seat, and slide plates are slidably installed at both ends of the first side plate, and a second driving mechanism is fixedly connected to the slide plate, and a movable plate is fixedly connected to the output end of the second driving mechanism. The present invention sleeves the crankshaft to be processed on the connecting rod, and as the positions of the two crankshafts on the first side plate continue to be exchanged, the crankshaft to be processed that has just been installed will move with the slide plate and cooperate with the protrusion to limit the position.

Description

Technical Field

[0001] The invention relates to the technical field of crankshaft machining machine tools, in particular to a special inclined hole machine tool for crankshaft machining. Background Art

[0002] The crankshaft is the most important part of the engine. It bears the force from the connecting rod and converts it into torque, which is output through the crankshaft and drives other accessories on the engine. The crankshaft is subjected to the combined effects of the centrifugal force of the rotating mass, the periodically changing gas inertia force and the reciprocating inertia force, which makes the crankshaft subject to bending and torsion loads. Therefore, the crankshaft is required to have sufficient strength and rigidity, the journal surface needs to be wear-resistant, work evenly and have good balance. The crankshaft often needs to be drilled with an inclined hole for use during processing;

[0003] For example, the patent with publication number CN210677168U and name "A machine tool for crankshaft processing" includes a spindle box, a bed, a crankshaft supporting mechanism and a tool holder. The bed is fixed with a spindle box, and the opposite side of the spindle box is provided with a crankshaft supporting mechanism slidably connected to the bed; a movable tool holder is provided between the spindle box and the crankshaft supporting mechanism; a crankshaft clamping mechanism is connected to the spindle box, and the crankshaft clamping mechanism includes a driver, a positioning member, a pressure cover, a fixed block, a mounting seat, a mounting shaft, and a square pin. The pressure cover is provided with a notch, and there are two square pins. The pressure cover is provided with square holes corresponding to the square pins, and the mounting shaft is provided with two parallel inclined planes, the fixed block is provided with a hole position for the inclined plane to enter and exit, and the mounting seat is provided with a cylindrical hole position for the mounting shaft to enter and exit; the fixed block is fixedly arranged with the positioning member.

[0004] In the existing crankshaft inclined hole processing, the crankshaft is often clamped and limited by a chuck. When the crankshaft needs to be replaced, the chuck needs to be released from the limit, and then the staff takes the crankshaft away and puts it away before taking a new crankshaft to clamp and limit it. These operations are too cumbersome and easily affect the processing. Summary of the invention

[0005] The purpose of the present invention is to provide a special inclined hole machine tool for crankshaft processing to solve the above-mentioned shortcomings in the prior art.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special inclined hole machine tool for crankshaft processing, comprising a base and a crankshaft body, the top of the base is equipped with an inclined drill bit through a first driving mechanism; a fixed seat and two guide plates are fixedly connected to the base, and inclined plates are fixedly connected on both sides of the fixed seat, and a blanking channel is formed between each inclined plate and each guide plate in a one-to-one correspondence; a first side plate and a second side plate with an L-shaped cross-section are rotatably installed on the fixed seat, and slides are slidably installed at both ends of the first side plate, and a second driving mechanism is fixedly connected to the slide, and a movable plate is fixedly connected to the output end of the second driving mechanism, and a connecting rod plugged into the crankshaft body is fixedly connected to the movable plate; the rotation of the first side plate will cooperate with the abutment mechanism to drive the connecting rod out of the crankshaft body, thereby passively unloading the crankshaft body.

[0007] Preferably, a center rod is fixedly connected between the first side plate and the second side plate.

[0008] Preferably, a protrusion is rotatably mounted on the second side plate, and a magnet is fixedly connected to one end of the protrusion away from the second side plate.

[0009] Preferably, a convex frame is fixedly connected to the slide plate, a guide groove is provided on the convex frame, a guide frame is fixedly connected to the base, a guide rod is fixedly connected to the guide frame, and the size of the guide rod is matched with the size of the guide groove.

[0010] Preferably, a support rod is fixedly connected to the movable plate, and the support rod is located between two connecting rods, and the length of the connecting rod is greater than the length of the support rod.

[0011] Preferably, a connecting frame is fixedly connected to the base, and the first driving mechanism includes a driving motor fixedly mounted on the connecting frame, a screw is fixedly connected to the output end of the driving motor, a sliding rod is threadedly connected to the screw, a limiting rod is fixedly connected to the connecting frame, the sliding rod is slidably sleeved on the limiting rod, a connecting frame is fixedly connected to the sliding rod, an electric push rod is fixedly connected to the connecting frame, the output end of the electric push rod is fixedly connected to the drilling motor, and the drill bit is fixedly mounted on the output end of the drilling motor.

[0012] Preferably, a side rod with an L-shaped cross-section is fixedly connected to the first side plate, a plug-in rod that is slidably inserted into the side rod and plugged into the base, the plug-in rod has a T-shaped cross-section, and a first spring is fixedly connected between the short arm end of the plug-in rod and the side rod.

[0013] Preferably, a convex rod is fixedly connected to the two plug-in rods.

[0014] Preferably, a limit bar is fixedly connected to the connecting frame, and the limit bar fits with the vertically arranged sliding plate.

[0015] Preferably, a convex plate is fixedly connected to the base, a limiting groove is provided on the convex plate, a limiting block is slidably installed in the limiting groove, the cross-section of the limiting block is T-shaped, a collection frame is fixedly connected to the limiting block, an insertion strip is slidably inserted on the limiting block, an outer plate is fixedly connected to the insertion strip, a second spring is fixedly connected between the outer plate and the limiting block, and a slot matching the insertion strip is provided on the convex plate.

[0016] In the above technical scheme, the present invention provides a special inclined hole machine tool for crankshaft processing, which has the following beneficial effects: by rotating the first side plate, when the first side plate is rotated, the two crankshaft bodies on the first side plate can be swapped in position, at this time the crankshaft body processed on the upper side will move downward, so as to cooperate with the guide rod for unloading, and at the same time the crankshaft originally moved up from the bottom will be in the processing position for convenient processing, and the position of the unloaded first side plate can now allow the crankshaft to be processed to be sleeved on the connecting rod, and as the positions of the two crankshafts on the first side plate continue to be swapped, the crankshaft to be processed that has just been installed will move with the slide plate and cooperate with the protrusion for limiting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of a three-dimensional structure provided by an embodiment of the present invention;

[0019] Figure 2 The embodiment of the present invention provides Figure 1 The left structural diagram of ;

[0020] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of some structures;

[0021] Figure 4 The embodiment of the present invention provides Figure 3 A schematic diagram of the structure at A;

[0022] Figure 5 A partial structural schematic diagram of a first side plate provided in an embodiment of the present invention;

[0023] Figure 6 The embodiment of the present invention provides Figure 3 Schematic diagram of the structure at B;

[0024] Figure 7A partial structural schematic diagram of a connecting rod provided in an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1. Base; 2. Connecting frame; 21. Limiting strip; 31. Driving motor; 32. Screw; 33. Limiting rod; 34. Sliding rod; 35. Connecting frame; 36. Electric push rod; 37. Drilling motor; 41. Fixed frame; 42. Atomizing nozzle; 43. Connecting pipe; 51. Middle rod; 52. First side plate; 53. Second side plate; 531. Bump; 54. Sliding plate; 541. Bump frame; 541 1. Guide groove; 55. Servo motor; 56. Movable plate; 561. Connecting rod; 562. Abutment rod; 57. Side rod; 58. Connecting rod; 581. Protruding rod; 59. Guide frame; 591. Guide rod; 6. Crankshaft body; 71. Collecting frame; 72. Protruding plate; 721. Limiting groove; 73. Limiting block; 74. Insert strip; 75. Outer plate; 81. Guide plate; 82. Fixed seat; 821. Inclined plate. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1-7 The invention discloses a special inclined hole machine tool for crankshaft processing, comprising a base 1 and a crankshaft body 6, wherein a drill bit arranged obliquely is installed on the top of the base 1 through a first driving mechanism; a fixed seat 82 and two guide plates 81 are fixedly connected to the base 1, and inclined plates 821 are fixedly connected to both sides of the fixed seat 82, and a material-dropping channel is formed between each inclined plate 821 and each guide plate 81 in a one-to-one correspondence; a first side plate 52 and a second side plate 53 with an L-shaped cross section are rotatably installed on the fixed seat 82, and a slide plate 54 is slidably installed at both ends of the first side plate 52, and a second driving mechanism is fixedly connected to the slide plate 54, and a movable plate 56 is fixedly connected to the output end of the second driving mechanism , a connecting rod 561 which is plugged into the crankshaft body 6 is fixedly connected to the movable plate 56; the rotation of the first side plate 52 will cooperate with the abutment mechanism to drive the connecting rod 561 to move out of the crankshaft body 6, thereby passively unloading the crankshaft body 6; wherein the end of the crankshaft body 6 close to the slide plate 54 is fixedly connected to a flange, and the connecting rod 561 is inserted in the flange. When the crankshaft body 6 is drilled by the drill bit, the first side plate 52 is rotated. At this time, the first side plate 52 will cooperate with the abutment mechanism to release the limit on the crankshaft body 6, thereby causing the crankshaft body 6 to fall off, wherein the second driving mechanism includes a servo motor 55 fixedly mounted on the slide plate 54.

[0029] In another embodiment of the present invention, a middle rod 51 is fixedly connected between the first side plate 52 and the second side plate 53 ; the middle rod 51 facilitates the synchronous rotation of the first side plate 52 and the second side plate 53 .

[0030] In another embodiment of the present invention: a protrusion 531 is rotatably mounted on the second side plate 53, and a magnet is fixedly connected to one end of the protrusion 531 away from the second side plate 53; when the connecting rod 561 is detached from the crankshaft body 6, the magnet will absorb the crankshaft body 6 to prevent the crankshaft body 6 from being moved by the connecting rod 561; when the connecting rod 561 is completely removed from the crankshaft body 6, the crankshaft body 6 will fall off due to its own gravity and will not be absorbed and kept still by the magnet.

[0031] In another embodiment of the present invention: a convex frame 541 is fixedly connected to the slide plate 54, and a guide groove 5411 is provided on the convex frame 541; a guide frame 59 is fixedly connected to the base 1, and a guide rod 591 is fixedly connected to the guide frame 59, and the size of the guide rod 591 is adapted to the size of the guide groove 5411; wherein the guide groove 5411 is in a parallelogram shape, and when the first side plate 52 rotates, the guide groove 5411 on the convex frame 541 will abut against the guide rod 591, and at this time the convex frame 541 will be abutted by the guide rod 591 and drive the slide plate 54 to move in a direction away from the second side plate 53, and at this time the connecting rod 561 will fall off from the crankshaft body 6, thereby facilitating the falling off.

[0032] In another embodiment of the present invention: a push rod 562 is fixedly connected to the movable plate 56, and the push rod 562 is located between the two connecting rods 561, and the length of the connecting rod 561 is greater than the length of the push rod 562; when the connecting rod 561 is inserted into the crankshaft body 6, the push rod 562 will be against the crankshaft body 6 to prevent the connecting rod 561 from being inserted too deep.

[0033] In another embodiment of the present invention: a connecting frame 2 is fixedly connected to the base 1, and a first driving mechanism includes a driving motor 31 fixedly installed on the connecting frame 2, a screw rod 32 is fixedly connected to the output end of the driving motor 31, a sliding rod 34 is threadedly connected to the screw rod 32, a limiting rod 33 is fixedly connected to the connecting frame 2, the sliding rod 34 is slidably sleeved on the limiting rod 33, a connecting frame 35 is fixedly connected to the sliding rod 34, an electric push rod 36 is fixedly connected to the connecting frame 35, a drilling motor 37 is fixedly connected to the output end of the electric push rod 36, and a drill bit is fixedly installed on the output end of the drilling motor 37; start the driving motor 31, at this time the driving motor 31 will drive the screw rod 32 to rotate, the screw rod 32 will drive the sliding rod 34 to slide on the limiting rod 33, thereby adjusting the position of the drilling motor 37 to facilitate drilling, and starting the electric push rod 36 facilitates the drilling motor 37 to be close to the crankshaft body 6.

[0034] In another embodiment of the present invention: a side bar 57 with an L-shaped cross section is fixedly connected to the first side plate 52, a plug-in rod 58 plugged into the base 1 is slidably inserted on the side bar 57, the plug-in rod 58 has a T-shaped cross section, and a first spring is fixedly connected between the short arm end of the plug-in rod 58 and the side bar 57; wherein the first side plate 52 and the side bar 57 are both L-shaped, and the first side bar and the side bar 57 are symmetrically arranged, when the first side bar is as Figure 5 When the plug-in rod 58 is rotated counterclockwise as shown, the left end of the side rod 57 will drop and approach the base 1, wherein the base 1 is provided with a plug-in slot, the size of which matches the size of the plug-in rod 58. At this time, the plug-in slot will be aligned with the dropped plug-in rod 58, so as to facilitate the insertion of the plug-in rod 58 into the plug-in slot, thereby limiting the rotation of the first side plate 52. At the same time, the first spring on the plug-in rod 58 will always pull the plug-in rod 58 to be inserted into the plug-in slot to avoid the accidental falling off of the plug-in rod 58. The symmetrical arrangement of the first side plate 52 and the side rod 57 ensures that when the first side plate 52 rotates left or right, there is always a plug-in rod 58 inserted into the plug-in slot, thereby limiting the rotation of the first side plate 52.

[0035] In another embodiment of the present invention, the two plug-in rods 58 are fixedly connected with protruding rods 581 . The protruding rods 581 facilitate the simultaneous movement of the two plug-in rods 58 , thereby facilitating the rotation of the side rods 57 .

[0036] In another embodiment of the present invention: a limit strip 21 is fixedly connected to the connecting frame 2, and the limit strip 21 fits with the vertically arranged slide plate 54; when the slide plate 54 is detached from the guide rod 591 through the convex frame 541 thereon, the slide plate 54 will be aligned with the first side plate 52. At this time, the slide plate 54 sliding upward will be restricted by the limit strip 21 and the convex block 531, so that when the drill bit is tilted for processing, it will not push the slide plate 54 to slide and affect the drilling process.

[0037] In another embodiment of the present invention, a convex plate 72 is fixedly connected to the base 1, a limiting groove 721 is provided on the convex plate 72, a limiting block 73 is slidably installed in the limiting groove 721, the cross section of the limiting block 73 is T-shaped, a collection frame 71 is fixedly connected to the limiting block 73, an insertion strip 74 is slidably inserted on the limiting block 73, an outer plate 75 is fixedly connected to the insertion strip 74, a second spring is fixedly connected between the outer plate 75 and the limiting block 73, and a slot adapted to the insertion strip 74 is provided on the convex plate 72; the collection frame 71 is placed between the two convex plates 72, and the limiting block 73 is inserted into the limiting groove 721, and the insertion strip 74 is aligned with the slot, at this time, the insertion strip 74 is fixedly connected to the limiting block 73, and the insertion strip 74 is fixedly connected to the limiting block 73. Inserted into the slot, thereby limiting the movement of the limit block 73, at this time, the collecting frame 71 will be located at the opening at the bottom end of the two guide plates 81, so as to collect the processed crankshaft body 6, and the second spring will always pull the inserting strip 74 to be inserted into the slot to avoid the accidental falling off of the inserting strip 74; wherein the side wall of the base 1 is fixedly connected with a fixing frame 41, a connecting pipe is fixedly installed on the fixing frame 41, a plurality of atomizing nozzles 42 are installed on the connecting pipe, a plurality of connecting pipes 43 are installed on the connecting pipe, a water source is connected to the connecting pipe 43, at this time, the connecting pipe 43 will introduce water into the atomizing nozzle 42 through the connecting pipe, and at this time, the water mist will be sprayed on the crankshaft body 6, so that dust is reduced during processing.

[0038] Working principle: when the connecting rod 561 is separated from the crankshaft body 6, the magnet will absorb the crankshaft body 6 to prevent the crankshaft body 6 from being moved by the connecting rod 561. When the connecting rod 561 is completely removed from the crankshaft body 6, the crankshaft body 6 will fall off due to its own gravity and will not be absorbed and stopped by the magnet. The guide groove 5411 is a parallelogram. When the first side plate 52 rotates, the guide groove 5411 on the convex frame 541 will abut against the guide rod 591. At this time, the convex frame 541 will be abutted by the guide rod 591 and drive the slide plate 54 to move in the direction away from the second side plate 53. At this time, the connecting rod 561 1 will fall off the crankshaft body 6, so as to facilitate the falling off; when the connecting rod 561 is inserted into the crankshaft body 6, the push rod 562 will be against the crankshaft body 6 to prevent the connecting rod 561 from being inserted too deep; start the driving motor 31, at this time the driving motor 31 will drive the screw rod 32 to rotate, the screw rod 32 will drive the slide rod 34 to slide on the limit rod 33, so as to adjust the position of the drilling motor 37 to facilitate drilling, and start the electric push rod 36 to facilitate the drilling motor 37 to approach the crankshaft body 6; wherein the first side plate 52 and the side rod 57 are both L-shaped, and the first side rod and the side rod 57 are symmetrically arranged, when the first side rod is as shown in FIG. Figure 5When the first side plate 52 is rotated counterclockwise, the left end of the side rod 57 will drop, thereby approaching the base 1, wherein the base 1 is provided with a plug slot, the size of the plug slot and the size of the plug rod 58 are adapted, and the plug slot will be aligned with the dropped plug rod 58, so that it is convenient to insert the plug rod 58 into the plug slot, thereby limiting the rotation of the first side plate 52, and at the same time, the first spring on the plug rod 58 will always pull the plug rod 58 to be inserted into the plug slot to prevent the plug rod 58 from accidentally falling off, and the first side plate 52 will be rotated counterclockwise. The symmetrical arrangement of the plate 52 and the side rod 57 ensures that when the first side plate 52 rotates left or right, there is always one plug-in rod 58 inserted into the plug-in slot to limit the rotation of the first side plate 52; the two plug-in rods 58 are conveniently moved simultaneously by the protruding rod 581, thereby facilitating the rotation of the side rod 57; when the slide plate 54 is separated from the guide rod 591 through the protruding frame 541 thereon, the slide plate 54 will be aligned with the first side plate 52, and the slide plate 54 sliding to the upper side will be stopped by the limit strip 21 and the protruding block 5 31 is limited so that when the drill bit is tilted for processing, it will not push the slide plate 54 to slide and affect the drilling process; the collection frame 71 is placed between the two convex plates 72, and the limit block 73 is inserted into the limit groove 721, and the insertion strip 74 is aligned with the slot, and the insertion strip 74 is inserted into the slot to limit the movement of the limit block 73. At this time, the collection frame 71 will be located at the opening at the bottom end of the two guide plates 81, so as to collect the processed crankshaft body 6, and the second spring will always pull the insertion strip 74 to be inserted into the slot to avoid the accidental fall of the insertion strip 74; wherein the side wall of the base 1 is fixedly connected with a fixed frame 41, and a connecting pipe is fixedly installed on the fixed frame 41, and a plurality of atomizing nozzles 42 are installed on the connecting pipe, and a plurality of connecting pipes 43 are installed on the connecting pipe, and a water source is connected to the connecting pipe 43, and at this time the connecting pipe 43 will introduce water into the atomizing nozzle 42 through the connecting pipe, and at this time the water mist will be sprayed on the crankshaft body 6, so that dust is reduced during processing.

[0039] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A special inclined hole machine tool for crankshaft processing, comprising a base and a crankshaft body, characterized in that: A drill bit arranged obliquely is installed on the top of the base through a first driving mechanism; A fixed seat and two guide plates are fixedly connected to the base, and inclined plates are fixedly connected to both sides of the fixed seat, and a material drop channel is formed between each inclined plate and each guide plate in a one-to-one correspondence; A first side plate and a second side plate with an L-shaped cross section are rotatably mounted on the fixed seat, a slide plate is slidably mounted on both ends of the first side plate, a second driving mechanism is fixedly connected to the slide plate, an output end of the second driving mechanism is fixedly connected to a movable plate, and a connecting rod plugged into the crankshaft body is fixedly connected to the movable plate; The rotation of the first side plate will cooperate with the abutment mechanism to drive the connecting rod out of the crankshaft body, thereby passively unloading the crankshaft body; a protrusion is rotatably installed on the second side plate, and a magnet is fixedly connected to the end of the protrusion away from the second side plate; a convex frame is fixedly connected to the slide plate, and a guide groove is provided on the convex frame, and a guide frame is fixedly connected to the base, and a guide rod is fixedly connected to the guide frame, and the size of the guide rod is adapted to the size of the guide groove; a side rod with an L-shaped cross-section is fixedly connected to the first side plate, and a plug-in rod that is plugged into the base is slidably inserted on the side rod, and the cross-section of the plug-in rod is T-shaped, and a first spring is fixedly connected between the short arm end of the plug-in rod and the side rod.

2. The special inclined hole machine tool for crankshaft machining according to claim 1, characterized in that: A middle rod is fixedly connected between the first side plate and the second side plate.

3. The special inclined hole machine tool for crankshaft machining according to claim 1, characterized in that: A support rod is fixedly connected to the movable plate, and the support rod is located between two connecting rods. The length of the connecting rod is greater than the length of the support rod.

4. The special inclined hole machine tool for crankshaft machining according to claim 3, characterized in that: The base is fixedly connected to a connecting frame, the first driving mechanism includes a driving motor fixedly mounted on the connecting frame, the output end of the driving motor is fixedly connected to a screw, a sliding rod is threadedly connected to the screw, a limiting rod is fixedly connected to the connecting frame, the sliding rod is slidably sleeved on the limiting rod, a connecting frame is fixedly connected to the sliding rod, an electric push rod is fixedly connected to the connecting frame, the output end of the electric push rod is fixedly connected to a drilling motor, and the drill bit is fixedly mounted on the output end of the drilling motor.

5. The special inclined hole machine tool for crankshaft machining according to claim 4, characterized in that: The two plug-in rods are fixedly connected with convex rods.

6. The special inclined hole machine tool for crankshaft machining according to claim 5, characterized in that: The connection frame is fixedly connected with a limit bar, and the limit bar is fitted with a vertically arranged slide plate.

7. The special inclined hole machine tool for crankshaft machining according to claim 6, characterized in that: A convex plate is fixedly connected to the base, a limiting groove is provided on the convex plate, a limiting block is slidably installed in the limiting groove, the cross-section of the limiting block is T-shaped, a collecting frame is fixedly connected to the limiting block, an insertion strip is slidably inserted on the limiting block, an outer plate is fixedly connected to the insertion strip, a second spring is fixedly connected between the outer plate and the limiting block, and a slot adapted to the insertion strip is provided on the convex plate.

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