CN114367917B - Crankshaft main journal polishing device - Google Patents
Crankshaft main journal polishing device Download PDFInfo
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- CN114367917B CN114367917B CN202210093134.7A CN202210093134A CN114367917B CN 114367917 B CN114367917 B CN 114367917B CN 202210093134 A CN202210093134 A CN 202210093134A CN 114367917 B CN114367917 B CN 114367917B
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- shaft
- plate
- extension
- main journal
- crankshaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
- B24B29/04—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces for rotationally symmetrical workpieces, e.g. ball-, cylinder- or cone-shaped workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/02—Bench grinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/04—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by mechanical gearing only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
- B24B5/421—Supports therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a crankshaft main journal polishing device, which relates to the technical field of crankshaft processing and comprises a processing table, wherein a flange end positioner and a shaft head end positioner are respectively arranged at the left end and the right end of the top of the processing table through a vertical plate and a distance adjusting plate; the polishing device is suitable for polishing the crankshaft main journals of different models, is convenient to adjust, and can effectively improve the polishing effect under the double polishing of the oilstone and the abrasive paper.
Description
Technical Field
The invention relates to the technical field of crankshaft machining, in particular to a crankshaft main journal polishing device.
Background
The crankshaft is the main rotating part of the engine, and after the connecting rod is arranged, the up-and-down reciprocating motion of the connecting rod can be converted into the rotating motion. The crankshaft is mostly made of carbon structural steel or nodular cast iron, and has two important parts: main journals and connecting rod journals. The main journal is mounted on the cylinder body, the connecting rod journal is connected with the connecting rod big end hole, and the connecting rod small end hole is connected with the cylinder piston, so that a typical crank block mechanism is formed.
In order to reduce the abrasion of the main journal during working and ensure the stable working of the crankshaft, the main journal needs to be polished during processing the crankshaft. The existing processing mode is to directly adopt sand paper to carry out manual polishing on the shaft neck, the polishing quality in the polishing operation process is completely determined by the experience of an operator, and the polishing mode is time-consuming and labor-consuming, has poor polishing efficiency and is difficult to ensure the precision.
Although the existing market already has equipment for polishing the crankshafts, the crankshafts are used in different machines, the size and the style of the crankshafts are various, the parameters of main journals of the crankshafts in different machines are different, and the existing polishing device cannot be freely adjusted according to the size of the crankshafts, so that the polishing efficiency is greatly limited.
Therefore, a crankshaft main journal polishing device is proposed to solve the above problems.
Disclosure of Invention
The invention aims to provide a crankshaft main journal polishing device to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a crankshaft main journal polishing device comprises a processing table for placing a crankshaft, wherein the crankshaft is formed by sequentially arranging a balance weight, a main journal and a connecting rod journal, and two ends of the crankshaft are respectively a shaft head end and a flange end;
the vertical plate is fixedly arranged at one end of the machining table, the top of the vertical plate is movably provided with a flange end positioner, the flange end positioner comprises an outer shaft cylinder, one end of the outer shaft cylinder is closed, arc-shaped clamping plates are symmetrically arranged at the upper part and the lower part inside the other end of the outer shaft cylinder, the top of each arc-shaped clamping plate is fixedly connected with a guide plate, the guide plate extends upwards and penetrates through the outer shaft cylinder, a limit groove matched with the guide plate is formed in the outer shaft cylinder, the inward end of each arc-shaped clamping plate is connected with an extension plate, the extension plate is screwed with a vertically arranged first lead screw, and the first lead screw extends upwards and is connected with a first fastening knob;
the tail part of the flange end positioner is driven by a driving component, the driving component comprises a second motor and two belt pulleys, the two belt pulleys are respectively arranged at the output shaft of the second motor and the tail end of the outer shaft cylinder, and the belt pulleys are in transmission through a belt;
the distance adjusting plate and the processing table are of a sliding structure, the top of the distance adjusting plate is movably provided with a shaft end positioner through a bearing, the shaft end positioner consists of a semi-arc base and a semi-arc fastener, two sides of the semi-arc base and the semi-arc fastener are respectively provided with a first extending platform and a second extending platform which are horizontally arranged, a plurality of reset springs are arranged between the semi-arc base and the semi-arc fastener, a second lead screw is connected between the first extending platform and the second extending platform in a penetrating manner, and the top end of the second lead screw is provided with a second fastening knob;
the lifting assembly comprises a bottom plate which is contacted with the electric sliding rail, a horizontally arranged double-threaded screw is movably installed on the top surface of the bottom plate through an embedded groove, one end of the double-threaded screw is outwards connected with a crank, a thread seat is movably installed at the thread position of the crank, the top end of the thread seat is rotatably connected with inclined support rods, the inclined support rods at two ends are arranged in a crossed mode, the tops of the inclined support rods are jointly and movably connected with a top plate, and the top plate is connected with the polishing assembly;
the polishing component comprises a shell with a cavity and two through ends, a third motor is arranged in the center of the inner bottom of the shell, an output shaft of the third motor is connected with a driving gear upwards, linkage shaft levers are arranged on two sides of the third motor in a centrosymmetric manner, one side of each linkage shaft lever is connected with an electric push rod, the electric push rods are installed on the inner bottom of the shell through fixing plates, a transmission gear and a driven gear are arranged on each linkage shaft lever, the driving gear, the transmission gear and the driven gear are sequentially meshed and form a whole through a movable connecting rod, and the driven gear is respectively connected with an oilstone grinding wheel and an abrasive paper grinding wheel upwards through a rotating shaft;
the adsorption component comprises a dust hood arranged on one side of the oilstone grinding wheel and the sand paper grinding wheel, the dust hood is connected with a dust suction pipe, the other end of the dust suction pipe penetrates through the table top of the machining table downwards and is connected with a dust collection box, and a suction fan is arranged on one side of the dust collection box;
and a control panel serving as a control center is also arranged on one side of the processing table.
As a further optimization of the above scheme, a strip-shaped groove for the distance adjusting plate to move is formed in the top of the processing table, the bottom of the distance adjusting plate is in an i shape and is embedded with the strip-shaped groove, a screw rod is arranged in the strip-shaped groove, the screw rod is in threaded connection with the distance adjusting plate, and one end of the screw rod is connected with a first motor outwards.
As a further optimization of the scheme, the extension plates are Z-shaped, the upper extension plate and the lower extension plate are oppositely and obliquely arranged, and the screw thread turning directions of the joints of the two extension plates and the first screw rod are opposite;
as a further optimization of the scheme, an electric sliding groove matched with the electric sliding rail is arranged at the bottom of the bottom plate, and the movement of the electric sliding groove on the electric sliding rail is regulated and controlled by a control panel.
As a further optimization of the above solution, the thread directions of the thread seats are opposite, and the diagonal brace is provided with a rotation pin as a joint at the intersection thereof.
As a further optimization of the above scheme, the linkage shaft lever is of a split structure and comprises an upper movable section and a lower fixed section, one side of the upper movable section is fixedly connected with an upper transverse connecting rod and a lower transverse connecting rod, the transmission gear is fixedly installed at the upper movable section, the driven gear is installed at the front end of the transverse connecting rods, and the transmission gear and the driven gear are meshed in an area surrounded by the two transverse connecting rods.
As a further optimization of the above scheme, the upper movable section is embedded in the lower fixed section through a clamping shaft at the bottom of the upper movable section and forms a rotating structure with the lower fixed section.
As a further optimization of the above scheme, the front end of the transverse connecting rod is in contact with the inner bottom of the outer shell through the extension shaft, the linkage shaft rod and the extension shaft are both in sliding structure with the inner bottom of the outer shell, the inner bottom of the outer shell is provided with a guide groove for the movement of the linkage shaft rod and the extension shaft, and the top of the guide groove is provided with a stroke groove for the movement of the rotating shaft.
As a further optimization of the above solution, the sliding directions of the linkage shaft lever and the extension shaft are perpendicular to each other.
As the further optimization of the scheme, the inner wall of the dust hood is symmetrically provided with the electromagnetic blocks.
The beneficial effects of the invention are:
1. according to the crankshaft main journal polishing device disclosed by the invention, the electric push rod is utilized to pull the linkage shaft rod to move, and due to the limitation that the sliding directions of the linkage shaft rod and the extension shaft are mutually vertical, the horizontal positions of an oilstone grinding wheel and a sand paper grinding wheel can be changed in the movement process of the linkage shaft rod, so that the crankshaft main journal polishing device is suitable for polishing crankshaft main journals of different models.
2. According to the crankshaft main journal polishing device disclosed by the invention, under the asynchronous pushing of the two electric push rods, the main journal is sequentially polished by the oilstone grinding wheel and the sand paper grinding wheel, so that the polishing effect can be greatly improved.
3. According to the crankshaft main journal polishing device disclosed by the invention, the screw pushes the distance adjusting plate to move, so that the distance adjusting plate can be matched with crankshafts with different lengths, and in addition, the crankshafts can be fixed by using the flange end positioner and the shaft head end positioner, so that the polishing effect is prevented from being influenced by the sliding position in the polishing process.
4. According to the crankshaft main journal polishing device disclosed by the invention, the polishing component can be brought to any position by the lifting component moving left and right, so that the main journals at different positions of the crankshaft can be conveniently polished, the height of the polishing component can be changed, and the crankshaft main journal polishing device has good applicability to the crankshaft with a larger size.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a first angular configuration of the present invention;
FIG. 2 is a second angular configuration of the present invention;
FIG. 3 is a schematic structural view of a crankshaft;
FIG. 4 is a schematic view of a flange end retainer of the present invention;
FIG. 5 is a schematic view of the spindle nose end locator of the present invention;
FIG. 6 is a schematic view of the polishing assembly and lift assembly of the present invention in connection;
FIG. 7 is a schematic illustration of the lift assembly of the present invention;
FIG. 8 is a schematic view of the internal structure of the polishing assembly of the present invention;
FIG. 9 is a schematic view of the drive gear mounting relationship of the polishing assembly;
FIG. 10 is an enlarged view of FIG. 3 at A;
in the drawings, the components represented by the respective reference numerals are listed below:
1-crankshaft: 101-counterweight, 102-main journal, 103-connecting journal, 104-shaft end, 105-flange end
2-processing table, 201-strip groove, 202-line-passing notch
3-vertical plate, 4-distance adjusting plate, 401-screw rod and 402-first motor
5-flange end locator: 501-outer shaft cylinder, 502-arc splint, 503-guide plate, 503 a-limit groove, 504-extension plate, 505-first screw rod, 506-first fastening knob
6-shaft head end positioner: 601-half arc base, 601 a-extension platform I, 602-half arc fastener, 602 a-extension platform II, 603-reset spring, 604-second screw rod, 605-second fastening knob
7-a drive assembly: 701-second electric machine, 702-pulley, 703-belt
8-electric sliding rail, 801-electric sliding groove
9-lifting assembly: 901-bottom plate, 902-embedded groove, 903-double-threaded screw rod, 904-threaded seat, 905-rocker, 906-diagonal brace rod and 907-top plate
10-polishing assembly: 1001-shell, 1001 a-guide groove, 1001 b-stroke groove, 1002-third motor, 1003-driving gear, 1004-linkage shaft rod, 1004 a-upper movable section, 1004 b-lower fixed section, 1004 c-clamping shaft, 1004 d-transverse connecting rod, 1005-transmission gear, 1006-driven gear, 1007-movable connecting rod, 1008-extension shaft, 1009-rotating shaft, 1010-oilstone grinding wheel, 1011-abrasive paper grinding wheel, 1012-electric push rod, 1013-fixed plate
11-adsorption component, 1101-dust hood, 1102-dust suction pipe, 1103-dust collection box, 1104-suction fan and 1105-electromagnetic block
12-control panel
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying drawings 1 to 10, in conjunction with the embodiments.
Example 1
Embodiment 1 discloses a crankshaft main journal polishing device, refer to fig. 1 to fig. 3, including a processing table 2 for placing a crankshaft 1, where the crankshaft 1 is composed of a balance weight 101, a main journal 102, and a connecting rod journal 103, which are sequentially arranged, and both ends of the crankshaft 1 are a spindle nose end 104 and a flange end 105, the left and right ends of the top of the processing table 2 are respectively provided with a flange end positioner 5 and a spindle nose end positioner 6 through a vertical plate 3 and a distance adjusting plate 4, a polishing assembly 10 is further provided between the vertical plate 3 and the distance adjusting plate 4 through an electric slide rail 8, the bottom of the polishing assembly 10 is provided with a lifting assembly 9, and one side of the processing table 2 is further provided with a control panel 12 serving as an operation center;
referring to fig. 2 and 4, a vertical plate 3 is fixedly installed at one end of a processing table 2, a flange end positioner 5 is movably installed at the top of the vertical plate, the flange end positioner 5 includes an outer shaft cylinder 501, one end of the outer shaft cylinder 501 is closed, arc-shaped clamping plates 502 are symmetrically arranged at the inner part of the other end of the outer shaft cylinder in a vertical manner, a guide plate 503 is fixedly connected to the top of the arc-shaped clamping plate 502, the guide plate 503 extends upwards and penetrates through the outer shaft cylinder 501, a limit groove 501a matched with the guide plate 503 is formed in the outer shaft cylinder 501, an extension plate 504 is connected to the inward end of the arc-shaped clamping plate 502, the extension plate 504 is in a Z shape, the upper extension plate 504 and the lower extension plate 504 are arranged in a relatively inclined manner, a first vertically arranged lead screw 505 is screwed on the extension plate 504, the screw directions of the joints of the two extension plates 504 and the first lead screw 505 are opposite, and the first lead screw 505 extends upwards and is connected with a first fastening knob 506;
referring to fig. 2, the tail of the flange end positioner 5 is driven by a driving assembly 7, the driving assembly 7 includes a second motor 701 and two belt pulleys 702, the two belt pulleys 702 are respectively installed at the output shaft of the second motor 701 and the tail end of the outer shaft cylinder 501, and the belt pulleys 702 are driven by a belt 703;
referring to fig. 1 and 5, the distance adjusting plate 4 and the processing table 2 are of a sliding structure, the top of the distance adjusting plate is movably provided with a shaft end positioner 6 through a bearing, the top of the processing table 2 is provided with a strip-shaped groove 201 for the distance adjusting plate 4 to move, the bottom of the distance adjusting plate 4 is i-shaped and is embedded with the strip-shaped groove 201, the strip-shaped groove 201 is internally provided with a screw 401, the screw 401 is in threaded connection with the distance adjusting plate 4, one end of the screw is externally connected with a first motor 402, the shaft end positioner 6 is composed of a half-arc base 601 and a half-arc fastener 602, two sides of the half-arc base 601 and the half-arc fastener 602 are respectively provided with a first extension platform 601a and a second extension platform 602a which are horizontally arranged, a plurality of reset springs 603 are arranged between the half-arc base 601 and the half-arc fastener 602, a second screw 604 is penetratingly connected between the first extension platform 601a and the second extension platform 602a, and the top end of the second screw 604 is provided with a second fastening knob 605;
referring to fig. 7, the lifting assembly 9 includes a bottom plate 901 contacting the electric slide rail 8, an electric sliding chute 801 matching the electric slide rail 8 is provided at the bottom of the bottom plate 901, the movement of the electric sliding chute 801 on the electric slide rail 8 is controlled by a control panel 12, a horizontally arranged double-threaded screw 903 is movably installed on the top surface of the bottom plate 901 through an embedded groove 902, one end of the double-threaded screw 903 is externally connected with a crank 905, a threaded seat 904 is movably installed at the threaded position of the double-threaded screw, a diagonal brace 906 is rotatably connected to the top end of the threaded seat 904, the diagonal braces 906 at the two ends are crossed, the top of the diagonal braces 906 are jointly and movably connected with a top plate 907, the top plate 907 is connected with the polishing assembly 10, the thread turning directions of the threaded seat 904 are opposite, and the diagonal brace 906 is provided with a rotating pin as a joint at the crossed position;
referring to fig. 8, the polishing assembly 10 includes a housing 1001 having a cavity therein and two ends thereof penetrating through, a third motor 1002 is disposed at a center of an inner bottom of the housing 1001, an output shaft of the third motor 1002 is connected to a driving gear 1003 upward, linkage shafts 1004 are disposed at two sides of the third motor 1003 in a central symmetry manner, one side of the linkage shafts 1004 is connected to an electric push rod 1012, the electric push rod 1012 is mounted on the inner bottom of the housing 1001 through a fixing plate 1013, the linkage shafts 1004 are provided with a transmission gear 1005 and a driven gear 1006, the driving gear 1003, the transmission gear 1005 and the driven gear 1006 are sequentially engaged and integrally formed through a movable link 1007, and the driven gear 1006 is upwardly connected to a grinding wheel 1010 and a sand paper grinding wheel through a rotating shaft 1009 respectively;
referring to fig. 9, the linkage shaft lever 1004 is a split structure, and includes an upper movable section 1004a and a lower fixed section 1004b, the upper movable section 1004a is embedded in the lower fixed section 1004b through a clamping shaft 1004c at the bottom of the upper movable section and forms a rotating structure with the lower fixed section, one side of the upper movable section 1004a is fixedly connected with an upper transverse connecting rod 1004d and a lower transverse connecting rod 1004d, a transmission gear 1005 is fixedly installed at the upper movable section 1004a, a driven gear 1006 is installed at the front end of the transverse connecting rod 1004d, and the transmission gear 1005 and the driven gear 1006 are engaged in an area surrounded by the two transverse connecting rods 1004 d;
the front end of the transverse connecting rod 1004d is in contact with the inner bottom of the shell 1001 through the extending shaft 1008, the linkage shaft 1004 and the extending shaft 1008 are both in a sliding structure with the inner bottom of the shell 1001, a guide groove 1001a for the movement of the linkage shaft 1004 and the extending shaft 1008 is arranged on the inner bottom of the shell 1001, a stroke groove 1001b for the movement of the rotating shaft 1009 is arranged at the top of the guide groove, and the sliding directions of the linkage shaft 1004 and the extending shaft 1008 are mutually vertical;
the principle of the crankshaft main journal polishing device disclosed by the embodiment 1 is as follows:
the distance adjusting plate 4 is driven by the first motor 402 and the screw 401 to move, the distance between the distance adjusting plate 4 and the vertical plate 3 is consistent with the length of the crankshaft 1, the flange end of the crankshaft 1 is placed into the flange end positioner 5 and is clamped by the arc-shaped clamping plate 502, the shaft end of the crankshaft is tightly buckled on the semi-arc base 601 by the semi-arc-shaped fastener 602, the crankshaft 1 is driven by the driving assembly 7 to rotate after being fixed, then the crank 904 is shaken to enable the inclined strut 906 to push the top plate to ascend, the height of the abrasive grinding wheel 1010 and the abrasive grinding wheel 1011 is consistent with that of the main journal, the abrasive grinding wheel 1010 and the abrasive grinding wheel 1011 rotate under the driving of the third motor, the electric push rod 1012 pulls the linkage shaft 1004 to move, the abrasive grinding wheel 1010 and the abrasive grinding wheel 1011 move towards the center to be close to the main journal due to the fact that the sliding directions of the linkage shaft 1004 and the extension shaft 1008 are perpendicular to each other, and the abrasive grinding wheel 1010 and the abrasive grinding wheel 1011 is used for fine grinding after the main journal is primarily ground by the abrasive grinding wheel 1010.
Example 2
Referring to fig. 1 and 10, an adsorption assembly 11 is further disposed on one side of the top of the polishing assembly 10, the adsorption assembly 11 includes a dust hood 1101 disposed on one side of the oilstone grinding wheel 1010 and the sandpaper grinding wheel 1011, the dust hood 1101 is connected with a dust suction pipe 1102, the other end of the dust suction pipe 1102 downwardly penetrates through the top of the processing table 2 and is connected with a dust collection box 1103, a suction fan 1104 is disposed on one side of the dust collection box 1103, and electromagnetic blocks 1105 are symmetrically disposed on the inner wall of the dust suction hood 1101.
The principle of the crankshaft main journal polishing device disclosed by the embodiment 2 is as follows:
the debris generated by grinding is absorbed by the dust collection cover 1101 and then enters the dust collection box 1103 through the dust collection pipe 1102, and the electromagnetic block 1105 in the dust collection cover 1101 can further assist in absorbing the debris and prevent the debris from flying.
In the description herein, reference to the description of the terms "one embodiment," "an example," "a specific example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. A crankshaft main journal polishing device comprises a processing table (2) for placing a crankshaft (1), wherein the crankshaft (1) is formed by sequentially arranging a balance weight (101), a main journal (102) and a connecting rod journal (103), and a shaft head end (104) and a flange end (105) are respectively arranged at two ends of the crankshaft (1), and is characterized in that a flange end positioner (5) and a shaft head end positioner (6) are respectively arranged at the left end and the right end of the top of the processing table (2) through a vertical plate (3) and a distance adjusting plate (4), a polishing assembly (10) is further arranged between the vertical plate (3) and the distance adjusting plate (4) through an electric sliding rail (8), a lifting assembly (9) is arranged at the bottom of the polishing assembly (10), and an adsorption assembly (11) is further arranged on one side of the top of the polishing assembly (10);
the vertical plate (3) is fixedly installed at one end of the machining table (2), the top of the vertical plate is movably provided with a flange end positioner (5), the flange end positioner (5) comprises an outer shaft cylinder (501), one end of the outer shaft cylinder (501) is closed, the inside of the other end of the outer shaft cylinder is provided with arc-shaped clamping plates (502) in a vertical symmetry mode, the top of each arc-shaped clamping plate (502) is fixedly connected with a guide plate (503), each guide plate (503) extends upwards and penetrates through the outer shaft cylinder (501), each outer shaft cylinder (501) is provided with a limiting groove (501 a) matched with each guide plate (503), one inward end of each arc-shaped clamping plate (502) is connected with an extension plate (504), each extension plate (504) is screwed with a first vertically arranged lead screw (505), and each first lead screw (505) extends upwards and is connected with a first fastening knob (506);
the tail of the flange end positioner (5) is driven by a driving component (7), the driving component (7) comprises a second motor (701) and two belt pulleys (702), the two belt pulleys (702) are respectively arranged at the output shaft of the second motor (701) and the tail end of an outer shaft cylinder (501), and the belt pulleys (702) are transmitted by a belt (703);
the distance adjusting plate (4) and the processing table (2) are of a sliding structure, the top of the distance adjusting plate is movably provided with a shaft end positioner (6) through a bearing, the shaft end positioner (6) is composed of a semi-arc base (601) and a semi-arc fastener (602), two sides of the semi-arc base (601) and the semi-arc fastener (602) are respectively provided with a first horizontally-arranged extension platform (601 a) and a second horizontally-arranged extension platform (602 a), a plurality of reset springs (603) are arranged between the semi-arc base (601) and the semi-arc fastener (602), a second lead screw (604) is connected between the first horizontally-arranged extension platform (601 a) and the second horizontally-arranged extension platform (602 a) in a penetrating manner, and the top end of the second lead screw (604) is provided with a second fastening knob (605);
the lifting assembly (9) comprises a bottom plate (901) which is in contact with the electric sliding rail (8), a horizontally arranged double-threaded screw rod (903) is movably mounted on the top surface of the bottom plate (901) through an embedded groove (902), one end of the double-threaded screw rod (903) is outwards connected with a crank (905), a threaded seat (904) is movably mounted at the threaded position of the crank, the top end of the threaded seat (904) is rotatably connected with an inclined strut (906), the inclined struts (906) at the two ends are arranged in a crossed mode, the top of the inclined strut (906) is jointly and movably connected with a top plate (907), and the top plate (907) is connected with the polishing assembly (10);
the polishing assembly (10) comprises a shell (1001) which is internally provided with a cavity and has two through ends, a third motor (1002) is arranged at the center of an inner bottom of the shell (1001), an output shaft of the third motor (1002) is upwards connected with a driving gear (1003), linkage shaft levers (1004) are arranged at two sides of the third motor (1002) in a central symmetry manner, one sides of the linkage shaft levers (1004) are connected with electric push rods (1012), the electric push rods (1012) are installed on the inner bottom of the shell (1001) through fixing plates (1013), a transmission gear (1005) and a driven gear (1006) are arranged on the linkage shaft levers (1004), the driving gear (1003), the transmission gear (1005) and the driven gear (1006) are sequentially meshed and form an integral sand paper through a movable connecting rod (1007), and the driven gear (1006) is upwards connected with an oilstone grinding wheel (1010) and a grinding wheel (1006) through a rotating shaft (1009) respectively;
the adsorption component (11) comprises a dust collection cover (1101) arranged on one side of the whetstone grinding wheel (1010) and the sandpaper grinding wheel (1011), the dust collection cover (1101) is connected with a dust collection pipe (1102), the other end of the dust collection pipe (1102) downwards penetrates through the table top of the processing table (2) to be connected with a dust collection box (1103), and one side of the dust collection box (1103) is provided with a suction fan (1104);
a control panel (12) as a control center is also arranged on one side of the processing table (2).
2. A crankshaft main journal polishing device according to claim 1, characterized in that: processing platform (2) top is seted up and is supplied bar groove (201) that roll adjustment board (4) removed, roll adjustment board (4) bottom is the I shape and with bar groove (201) looks gomphosis, be provided with screw rod (401) in bar groove (201), screw rod (401) and roll adjustment board (4) threaded connection and its one end outside be connected with first motor (402).
3. A crankshaft main journal polishing device according to claim 1, characterized in that: the extension plates (504) are Z-shaped, the upper extension plate and the lower extension plate (504) are oppositely arranged in an inclined mode, and the screw thread turning directions of the joints of the two extension plates (504) and the first screw rod (505) are opposite.
4. A crankshaft main journal polishing device according to claim 3, characterized in that: the bottom of the bottom plate (901) is provided with an electric sliding groove (801) matched with the electric sliding rail (8), and the movement of the electric sliding groove (801) on the electric sliding rail (8) is regulated and controlled by a control panel (12).
5. A crankshaft main journal polishing device according to claim 1, characterized in that: the thread directions of the thread seats (904) are opposite, and the inclined supporting rod (906) is provided with a rotating pin as a joint at the intersection of the inclined supporting rod and the inclined supporting rod.
6. A crankshaft main journal polishing device according to claim 1, characterized in that: the linkage shaft lever (1004) is of a split structure and comprises an upper movable section (1004 a) and a lower fixed section (1004 b), one side of the upper movable section (1004 a) is fixedly connected with an upper transverse connecting rod (1004 d) and a lower transverse connecting rod (1004 d), the transmission gear (1005) is fixedly installed on the upper movable section (1004 a), the driven gear (1006) is installed at the front end of the transverse connecting rods (1004 d), and the transmission gear (1005) and the driven gear (1006) are meshed in an area surrounded by the two transverse connecting rods (1004 d).
7. A crankshaft main journal polishing device according to claim 6, characterized in that: the upper movable section (1004 a) is embedded in the lower fixed section (1004 b) through a clamping shaft (1004 c) at the bottom of the upper movable section and forms a rotating structure with the lower fixed section.
8. A crankshaft main journal polishing device according to claim 6, characterized in that: the front end of the transverse connecting rod (1004 d) is in contact with the inner bottom of the shell (1001) through an extension shaft (1008), the linkage shaft rod (1004) and the extension shaft (1008) are in sliding structures with the inner bottom of the shell (1001), a guide groove (1001 a) for the linkage shaft rod (1004) and the extension shaft (1008) to move is formed in the inner bottom of the shell (1001), and a stroke groove (1001 b) for the rotating shaft (1009) to move is formed in the top of the guide groove.
9. A crankshaft main journal polishing device according to claim 8, characterized in that: the sliding directions of the linkage shaft lever (1004) and the extension shaft (1008) are mutually perpendicular.
10. A crankshaft main journal polishing device according to claim 1, characterized in that: the inner wall of the dust collection cover (1101) is symmetrically provided with electromagnetic blocks (1105).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210093134.7A CN114367917B (en) | 2022-01-26 | 2022-01-26 | Crankshaft main journal polishing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210093134.7A CN114367917B (en) | 2022-01-26 | 2022-01-26 | Crankshaft main journal polishing device |
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| CN114367917A CN114367917A (en) | 2022-04-19 |
| CN114367917B true CN114367917B (en) | 2023-01-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117943960B (en) * | 2024-03-14 | 2024-06-07 | 江苏中祥汽车部件有限公司 | Crankshaft surface polishing machine |
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| Publication number | Publication date |
|---|---|
| CN114367917A (en) | 2022-04-19 |
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