Machining mechanism for agricultural machinery bucket pin shaft

Abstract

The utility model relates to a machining mechanism for an agricultural machine bucket pin shaft. The machining mechanism comprises a rack, a platen transversely fixed to the top of the rack, a first machining unit and a second machining unit, wherein the first machining unit and the second machining unit are arranged on the platen. The first machining unit comprises a rotating module and a machining module which are matched with each other. The rotating module comprises a side frame fixed to the top of the platen, a rotating motor fixed to the side frame and a first positioning base concentrically fixed to a rotating shaft of the rotating motor. The second machining unit comprises a lifting plate, a lifting air cylinder, a second machining motor and a second chuck, wherein the lifting plate is movably connected to the upper portion of the platen, has the vertical moving function and is located in the door-shaped frame, the lifting air cylinder is fixed to the top of the platen and located below the lifting plate, the second machining motor is fixed to the top of the lifting plate, and the second chuck is concentrically fixed to a rotating shaft of the second machining motor. The second milling cutter is concentrically and detachably fixed in the second chuck; according to the utility model, the processing cost is effectively reduced, and the size is reduced, so that the waste of space is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of processing mechanism of agricultural machine bucket pin shaft. BACKGROUND

[0002] Agricultural machine is the abbreviation of agricultural machinery, and agricultural tractor is a common self-propelled agricultural machinery used for moving crops. The bucket is an indispensable important tool on the agricultural tractor. The bucket can be lifted and tilted by the hydraulic system to achieve precise excavation and loading. The bucket also has a pin shaft connected to the hydraulic system. In order to ensure the connection strength, the pin shaft is made of metal.

[0003] The processing of the pin shaft includes multiple process steps, including the formation of an annular groove and two open slots on its outer wall. The annular groove and two open slots are usually machined by milling. The existing pin shaft requires at least two milling machines to complete the milling of the annular groove and two open slots. The price of a milling machine is already high, and two milling machines undoubtedly increase the cost of equipment purchase, thereby increasing the processing cost and occupying twice the space, resulting in waste of space. In addition, the pin shaft must be repeatedly transferred between the two milling machines, which is time-consuming and labor-intensive, thereby affecting the processing efficiency and requiring further improvement. SUMMARY

[0004] In view of the above-mentioned status of the prior art, the technical problem to be solved by the present utility model is to provide a processing mechanism for agricultural machine bucket pin shaft that effectively reduces processing cost, reduces size to avoid space waste, saves time and effort to improve processing efficiency.

[0005] The technical solution adopted by the present utility model to solve the above-mentioned technical problem is as follows: a processing mechanism for agricultural machine bucket pin shaft, characterized by comprising a rack, a table plate fixed horizontally on the top of the rack, and a first processing unit and a second processing unit arranged on the table plate.

[0006] The first processing unit comprises a rotary module and a processing module that cooperate with each other. The rotary module comprises a side frame fixed on the top of the table plate, a rotary motor fixed on the side frame, and a first positioning seat concentrically fixed on the rotating shaft of the rotary motor. The rotating shaft of the rotary motor is arranged horizontally to the right.

[0007] The processing module comprises a door-shaped frame fixed on the top of the table plate, a moving block movably connected on the top of the door-shaped frame to have left-right translation function, a displacement cylinder fixed on the door-shaped frame and located on one side of the moving block, a lifter arranged on the top of the moving block, a first processing motor fixed on the moving end of the lifter, a first chuck concentrically fixed on the rotating shaft of the first processing motor, and a first milling cutter concentrically and detachably fixed in the first chuck, the extension end of the displacement cylinder is transversely arranged and fixed on the moving block, and the rotating shaft of the first processing motor is vertically arranged downward.

[0008] The second processing unit comprises a lifting plate movably connected above the table plate to have up-down vertical movement function and located in the door-shaped frame, a lifting cylinder fixed on the top of the table plate and located below the lifting plate, a second processing motor fixed on the top of the lifting plate, a second chuck concentrically fixed on the rotating shaft of the second processing motor, and a second milling cutter concentrically and detachably fixed in the second chuck, the extension end of the lifting cylinder is vertically arranged upward and fixed on the lifting plate, and the rotating shaft of the second processing motor is transversely arranged forward.

[0009] The second processing unit further comprises a support frame fixed on the top of the table plate and located between the first positioning seat and the pressing head, and a second positioning seat fixed on the top of the support frame and capable of adjusting the fixed position forward and backward.

[0010] Preferably, the first processing unit further comprises a bracket fixed on the top of the table plate and located on the right side of the side frame, a positioning cylinder fixed on the bracket, a connecting block fixed on the extension end of the positioning cylinder, and a pressing head rotatably connected to the connecting block and concentrically arranged with the first positioning seat.

[0011] Preferably, a positioning sleeve concentrically arranged is formed on the right side of the first positioning seat towards the pressing head, and two first arc-shaped rotation stop blocks arranged at opposite angles are formed on the inner wall of the opening end of the positioning sleeve towards the inside of the positioning sleeve.

[0012] Preferably, a limiting assembly is further arranged on the second positioning seat, the limiting assembly comprises a limiting cylinder fixed on the front side of the second positioning seat, and a limiting block fixed on the extension end of the limiting cylinder and capable of adjusting the fixed height upward and downward, and the extension end of the limiting cylinder is transversely arranged backward.

[0013] Preferably, a vertically arranged positioning boss is formed on the top of the second positioning seat upward, a counterbore is arranged in the center of the end of the positioning boss, a slot hole is arranged between the front side inner wall of the counterbore and the front side outer wall of the positioning boss, and the limiting block is movably inserted into the slot hole.

[0014] Preferably, a through hole is arranged at the center of the bottom surface of the counterbore, and a positioning hole concentric with the through hole is arranged at the top of the second positioning seat, and two second arc-shaped rotation-stopping blocks arranged at opposite angles are formed on the inner wall of the opening of the positioning hole.

[0015] Preferably, an arc-shaped limiting strip concentric with the arc-shaped guide surface is arranged on the arc-shaped guide surface of the end of the limiting block.

[0016] Preferably, a circular cavity is arranged at the center of the end of the pressure head.

[0017] Compared with the prior art, the utility model has the advantages that the utility model can complete the machining of the annular groove and the two open grooves of the pin shaft with only one equipment, and the structure is simpler than that of a milling machine, thereby reducing the cost and the equipment purchase cost, so that the processing cost is effectively reduced, the volume is reduced, and the space is saved; in addition, after the machining of the annular groove is completed, the position of the pin shaft can be changed and positioned only by simple operation, so that the pin shaft can be quickly circulated at a close distance to save time, thereby saving time and effort and improving the processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] The above and other features, advantages, and aspects of the embodiments of the present application will become more apparent by describing in detail the following specific embodiments with reference to the attached drawings; identical or similar reference numerals denote identical or similar elements throughout the several views of the drawings; it should be understood that the drawings are schematic, and the original and elements are not necessarily drawn according to the scale; in the drawings:

[0019] Fig. 1 It is a right front side exploded view of the utility model;

[0020] Fig. 2 It is a right front side exploded view of the first positioning seat and the pin shaft of the utility model;

[0021] Fig. 3 It is a left rear side view of the utility model;

[0022] Fig. 4 It is a right front side view of the limiting assembly of the utility model;

[0023] Fig. 5 It is a right rear side view of the limiting block of the utility model;

[0024] Fig. 6 It is a left front side view of the lifter of the utility model. DETAILED DESCRIPTION

[0025] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the ordinary meaning as understood by a person of ordinary skill in the art to which the present application pertains. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "comprise", "comprising", and similar terms mean that the elements or objects before the term encompass the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms "connected" or "coupled" and similar terms do not necessarily mean a physical or mechanical connection, but can include an electrical connection, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like are used only to indicate relative positional relationships, which can change when the absolute positions of the described objects change.

[0026] To keep the following description of the embodiments of the present application clear and concise, detailed descriptions of known functions and known components are omitted.

[0027] As shown in Figs. 1-6 A processing mechanism for a farm machine bucket pin, comprising a rack 1, a table plate 2 transversely fixed on the top of the rack 1, and a first processing unit 3 and a second processing unit 4 arranged on the table plate 2;

[0028] The first processing unit 3 comprises a rotating module and a processing module that cooperate with each other. The rotating module comprises a side frame 31 fixed on the top of the table plate 2, a rotating motor 32 fixed on the side frame 31, and a first positioning seat 33 concentrically fixed on the rotating shaft of the rotating motor 32. The rotating shaft of the rotating motor 32 is transversely arranged to the right;

[0029] The processing module comprises a door-shaped frame 38 fixed on the top of the table plate 2, a moving block 39 movably connected on the top of the door-shaped frame 38 to have left-right translation function, a displacement cylinder 310 fixed on the door-shaped frame 38 and located on one side of the moving block 39, a lifter 311 arranged on the top of the moving block 39, a first processing motor 312 fixed on the moving end of the lifter 311, a first chuck 313 concentrically fixed on the rotating shaft of the first processing motor 312, and a first milling cutter 314 concentrically and detachably fixed in the first chuck 313. The extension end of the displacement cylinder 310 is transversely arranged to the left or to the right and fixed on the moving block 39. The rotating shaft of the first processing motor 312 is vertically arranged downward;

[0030] The second machining unit 4 comprises a lifting plate 41 movably connected above the table plate 2 to have a vertical moving function and located in the door frame 38, a lifting cylinder 42 fixed on the top of the table plate 2 and located below the lifting plate 41, a second machining motor 43 fixed on the top of the lifting plate 41, a second chuck 44 concentrically fixed on the rotating shaft of the second machining motor 43, and a second milling cutter 45 concentrically and detachably fixed in the second chuck 44, and the extension end of the lifting cylinder 42 is vertically upwardly arranged and fixed on the lifting plate 41, and the rotating shaft of the second machining motor 43 is transversely forwardly arranged.

[0031] The second machining unit 4 further comprises a support frame 46 fixed on the top of the table plate 2 and located between the first positioning seat 33 and the pressing head 37, and a second positioning seat 47 fixed on the top of the support frame 46 and capable of being adjusted in the front and back directions.

[0032] The first machining unit 3 further comprises a bracket 34 fixed on the top of the table plate 2 and located to the right of the side frame 31, a positioning cylinder 35 fixed on the bracket 34, a connecting block 36 fixed on the extension end of the positioning cylinder 35, and a pressing head 37 rotatably connected to the connecting block 36 and concentrically arranged with the first positioning seat 33.

[0033] The right side of the first positioning seat 33 is formed with a positioning sleeve 331 concentrically arranged towards the direction of the pressing head 37, and two first arc-shaped rotation stop blocks 332 are formed on the inner wall of the opening end of the positioning sleeve 331 towards the inside of the positioning sleeve 331.

[0034] The second positioning seat 47 is further provided with a limiting assembly, which comprises a limiting cylinder 48 fixed on the front side of the second positioning seat 47 and a limiting block 49 fixed on the extension end of the limiting cylinder 48 and capable of being adjusted in the up and down directions to fix the height, and the extension end of the limiting cylinder 48 is transversely arranged towards the back.

[0035] The top of the second positioning seat 47 is formed with a positioning boss 471 vertically arranged, a counterbore 475 is formed in the center of the end of the positioning boss 471, a slot hole 474 is formed between the front side inner wall of the counterbore 475 and the front side outer wall of the positioning boss 471 to cooperate with the limiting block 49, and the limiting block 49 is movably inserted into the slot hole 474.

[0036] A through hole 476 is formed in the bottom surface center of the counterbore 475, and correspondingly, a positioning hole 472 concentrically arranged with the through hole 476 is formed in the top of the second positioning seat 47, and two second arc-shaped rotation stop blocks 473 are formed on the inner wall of the opening of the positioning hole 472 towards the inside of the positioning hole 472.

[0037] The end of the limiting block 49 is formed with a guide arc surface 491, and an arc-shaped limiting strip 492 concentrically arranged with the guide arc surface 491 is formed on the guide arc surface 491 towards the direction of the counterbore 475.

[0038] The lifter 311 comprises a stand 3111 fixed on the top of the moving block 39, a lifting motor 3112 fixed on the back side of the stand 3111, a lifting frame 3118 movably connected on the front side of the stand 3111 to have the up-and-down vertical moving function, an inner threaded block 3114 fixed on the lifting frame 3118, a lead screw 3113 vertically inserted and screwed in the inner threaded block 3114, a first pulley 3115 concentrically fixed on the rotating shaft of the lifting motor 3112, a second pulley 3116 concentrically sleeved and fixed on the lead screw 3113 and arranged at the same height with the first pulley 3115, a belt 3117 sleeved on the first pulley 3115 and the second pulley 3116, and the upper and lower ends of the lead screw 3113 are rotatably connected on the stand 3111, and the first machining motor 312 is fixed on the lifting frame 3118.

[0039] A circular cavity 371 is formed in the center of the end of the pressure head 37.

[0040] Working principle:

[0041] The pin shaft 5 is transversely placed and moved to the right of the first positioning seat 33, and the first step shaft 51 at one end of the pin shaft 5 is turned left to match the direction of the first positioning seat 33, and then the second step shaft 52 at the end of the first step shaft 51 is inserted into the end opening of the positioning sleeve 331, and the pin shaft 5 is also appropriately rotated in this process to make the two flat surfaces 53 on the outer wall of the second step shaft 52 respectively adhere to the outer walls of the two first arc-shaped stop blocks 332, so that the relative rotation between the pin shaft 5 and the first positioning seat 33 can be prevented; then the extension end of the positioning cylinder 35 is driven to extend outward to drive the pressure head 37 to move left through the connecting block 36, until the end of the pressure head 37 abuts against the right end of the pin shaft 5, at this time, the right end of the pin shaft 5 extends into the circular cavity 371 and is pressed against the bottom surface of the circular cavity 371, so that the coaxiality between the pin shaft 5 and the first positioning seat 33 during rotation is ensured to improve the machining precision.

[0042] Then the first processing motor 312 is started to rotate its rotating shaft, and then the first milling cutter 314 is driven to rotate by the first chuck 313, at this time, the first milling cutter 314 is located above the first stepped shaft 51, then the extension end of the displacement cylinder 310 is driven to extend outwards or contract inwards to drive the first processing motor 312, the first chuck 313 and the first milling cutter 314 to move left or right by the moving block 39 and the lifter 311, and then the first milling cutter 314 is located at the specified slotting position; then the rotating shaft of the lifting motor 3112 is started to rotate, and then the lead screw 3113 is driven to rotate by the first pulley 3115, the second pulley 3116 and the belt 3117, so as to drive the internally threaded block 3114 to move downwards according to the principle of screw connection, and then the first processing motor 312, the first chuck 313 and the first milling cutter 314 are all driven to move downwards by the lifting frame 3118 to gradually approach the first stepped shaft 51, when the end of the first milling cutter 314 contacts the outer wall of the first stepped shaft 51, a blind hole will be cut on the outer wall of the first stepped shaft 51, and the depth of the blind hole can be determined by adjusting the height of the first milling cutter 314; then the rotating shaft of the rotary motor 32 is started to rotate, and then the pin shaft 5 is driven to rotate by the first positioning seat 33, and the end of the first milling cutter 314 will rotate relative to the pin shaft 5, and finally an annular groove 54 will be opened on the outer wall of the first stepped shaft 51.

[0043] When the annular groove 54 is opened, the rotary motor 32 is first turned off, and the rotating shaft of the lifting motor 3112 is reversed to drive the first milling cutter 314 to move upwards, the first processing motor 312 is then turned off, and the extension end of the positioning cylinder 35 is driven to contract inwards to drive the pressing head 37 to move rightwards, then the pin shaft 5 is held by hand and moved rightwards to take out the pin shaft 5 from the first positioning seat 33; then the pin shaft 5 is rotated by 90 degrees and moved above the second positioning seat 47, and the first stepped shaft 51 is distributed downwards, then the pin shaft 5 is moved downwards to insert the first stepped shaft 51 into the counterbore 475, and then the second stepped shaft 52 is inserted into the through hole 476, and the pin shaft 5 is appropriately rotated during the process to make the two flat surfaces 53 on the outer wall of the second stepped shaft 52 respectively adhere to the outer walls of the two second arc-shaped rotation-stopping blocks 473, so that the relative rotation between the pin shaft 5 and the second positioning seat 47 can be prevented.

[0044] Then the extension end of the limiting cylinder 48 in the limiting assembly is driven to extend outwards to drive the limiting block 49 to move backwards and gradually approach the first stepped shaft 51, until the guide arc surface 491 adheres to the outer wall of the first stepped shaft 51, at this time, the arc-shaped limiting strip 492 is inserted into the annular groove 54, so that the transverse and vertical movement of the pin shaft 5 can be prevented.

[0045] At this time, the second milling cutter 45 is located above the pin shaft 5, and then the extension end of the lifting cylinder 42 is driven to retract inward to drive the second machining motor 43, the second chuck 44 and the second milling cutter 45 to move downward by means of the lifting plate 41, and the second machining motor 43 is started to rotate the rotating shaft, thereby driving the second milling cutter 45 to rotate by means of the second chuck 44, and when the end of the second milling cutter 45 contacts the upper end of the pin shaft 5, the end of the second milling cutter 45 will open a vertically distributed open slot on the rear side outer wall of the upper end of the pin shaft 5.

[0046] When the open slot is opened, the extension end of the lifting cylinder 42 is driven to extend outward to drive the second milling cutter 45 to move upward, and the second machining motor 43 is turned off, and then the extension end of the limiting cylinder 48 is driven to retract inward to drive the limiting block 49 to move forward, thereby making the guiding arc surface 491 away from the outer wall of the first stepped shaft 51, and the arc-shaped limiting strip 492 away from the annular groove 54, and then the pin shaft 5 is pulled upward and rotated by 180 degrees, and then the pin shaft 5 is moved downward again to be fixed in the second positioning seat 47, and the extension end of the limiting cylinder 48 in the limiting assembly is driven to extend outward to drive the limiting block 49 to move backward again, thereby preventing the pin shaft 5 from moving horizontally and vertically in the same way; the second machining motor 43 is started again and the lifting cylinder 42 is driven to control the second milling cutter 45 to move downward again, so that another open slot which is diagonally distributed with the previous open slot can be opened on the upper end outer wall of the pin shaft 5; finally, the lifting cylinder 42 is controlled in the same way and the second machining motor 43 is turned off to pull the pin shaft 5 upward, so that the machining of the annular groove 54 and the two open slots of the pin shaft 5 is completed.

[0047] The utility model only needs one equipment to complete the machining of the annular groove 54 and the two open slots of the pin shaft 5, and the structure is simpler than that of a milling machine, thereby reducing the cost and the equipment purchase cost, so that the processing cost is effectively reduced, the volume is reduced, and the space is avoided to be wasted; in addition, after the machining of the annular groove 54 is completed, the position transformation and positioning of the pin shaft 5 can be realized only by simple operation, thereby enabling the pin shaft 5 to be quickly circulated at close range to save time, thereby achieving the effect of saving time and effort to improve the processing efficiency.

[0048] Finally, it should be pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, but not to limit them; although the utility model has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can modify the technical solutions recorded in the foregoing examples, or replace some technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A processing mechanism of a farm machine bucket pin, characterized by, The machine comprises a rack, a table plate fixed transversely on the top of the rack, and a first machining unit and a second machining unit arranged on the table plate; The first machining unit comprises a rotary module and a machining module matched with each other, the rotary module comprises a side frame fixed on the top of the table plate, a rotary motor fixed on the side frame, and a first positioning seat concentrically fixed on the rotary shaft of the rotary motor, and the rotary shaft of the rotary motor is arranged transversely to the right; The machining module comprises a door-shaped frame fixed on the top of the table plate, a moving block movably connected on the top of the door-shaped frame to have left-right translation function, a displacement cylinder fixed on the door-shaped frame and located on one side of the moving block, a lifter arranged on the top of the moving block, a first machining motor fixed on the moving end of the lifter, a first chuck concentrically fixed on the rotary shaft of the first machining motor, and a first milling cutter concentrically and detachably fixed in the first chuck, the extension end of the displacement cylinder is arranged transversely to the left or right and fixed on the moving block, and the rotary shaft of the first machining motor is arranged vertically downward. The second machining unit comprises a lifting plate movably connected above the table plate to have up-down vertical movement function and located in the door-shaped frame, a lifting cylinder fixed on the top of the table plate and located below the lifting plate, a second machining motor fixed on the top of the lifting plate, a second chuck concentrically fixed on the rotary shaft of the second machining motor, and a second milling cutter concentrically and detachably fixed in the second chuck, the extension end of the lifting cylinder is arranged vertically upward and fixed on the lifting plate, and the rotary shaft of the second machining motor is arranged transversely forward. The second machining unit further comprises a support frame fixed on the top of the table plate and located between the first positioning seat and the pressure head, and a second positioning seat fixed on the top of the support frame and adjustable in the front-back direction.

2. The mechanism for processing a pin shaft of a farm machine bucket according to claim 1, wherein The first machining unit further comprises a bracket fixed on the top of the table plate and located to the right of the side frame, a positioning cylinder fixed on the bracket, a connecting block fixed on the extension end of the positioning cylinder, and a pressure head rotatably connected on the connecting block and concentrically arranged with the first positioning seat.

3. The mechanism for processing a pin shaft of a farm machine bucket according to claim 2, wherein The right side of the first positioning seat is formed with a positioning sleeve concentrically arranged towards the pressure head, and two first arc-shaped rotation stop blocks are formed on the inner wall of the end opening of the positioning sleeve towards the inside of the positioning sleeve.

4. The mechanism for processing a pin shaft of a farm machine bucket according to claim 1, wherein The second positioning seat is further provided with a limiting assembly, the limiting assembly comprises a limiting cylinder fixed on the front side of the second positioning seat, and a limiting block fixed on the extension end of the limiting cylinder and adjustable in the up-down direction, and the extension end of the limiting cylinder is arranged transversely rearward.

5. The mechanism for processing a pin shaft of a farm machine bucket according to claim 4, wherein The top of the second positioning seat is formed with a positioning boss arranged vertically upward, a counterbore is formed in the center of the end of the positioning boss, a slot hole is formed between the front side inner wall of the counterbore and the front side outer wall of the positioning boss, and the limiting block is movably inserted into the slot hole.

6. The mechanism for processing a pin shaft of a farm machine bucket according to claim 5, wherein A through hole is formed in the center of the bottom surface of the counterbore, and a positioning hole concentrically arranged with the through hole is formed in the top of the second positioning seat, two second arc-shaped rotation stop blocks are formed on the inner wall of the opening of the positioning hole towards the inside of the positioning hole.

7. The mechanism for processing a pin shaft of a farm machine bucket according to claim 5, wherein The end of the limiting block is formed with a guide arc surface, and the guide arc surface is formed with an arc-shaped limiting strip concentric with the guide arc surface and directed to the direction of the counterbore.

8. The mechanism for processing a pin shaft of a farm machine bucket according to claim 2, wherein The end of the pressure head is provided with a circular cavity.

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