A connecting rod processing and grinding device for medium-sized excavators

Abstract

The present invention relates to the technical field of processing accessories for excavators, and in particular to a connecting rod processing and grinding device for a medium-sized excavator, comprising a base frame, a vertical frame fixedly connected to the middle of the upper end of the rear side wall of the base frame, a movable frame movably arranged inside the base frame, a positioning and locking mechanism for positioning and locking the connecting rod is arranged between the vertical frame and the base frame, and a hole grinding mechanism for grinding the inner wall of the connecting hole of the connecting rod is arranged inside the movable frame. The positioning and locking mechanism and hole grinding mechanism adopted by the present invention can automatically complete the synchronous and rapid grinding of two connecting holes of connecting rods of different specifications, and the work efficiency is significantly improved. The whole is completed automatically, and it is convenient and quick to use. At the same time, the connecting rod and the grinding rod are both highly stable, which can effectively ensure the grinding quality of the connecting hole of the connecting rod, and ensure that the hole wall of the connecting hole is smooth and has a high concentricity.

Description

Technical Field

[0001] The invention relates to the technical field of excavator accessory processing, and in particular to a connecting rod processing and grinding device for a medium-sized excavator. Background Art

[0002] In construction machinery such as excavators, the connecting rod refers to a component in its hydraulic system or a part of the mechanical arm. The connecting rod can assist in the extension and retraction of the digging arm and the swing of the bucket arm. For excavators, the connecting rod refers to the articulated parts on their working devices. These parts allow relative movement between the boom, bucket arm and bucket. These parts are driven by hydraulic cylinders, allowing the excavator to complete various excavation actions.

[0003] As an articulated component, both ends of the connecting rod of a medium-sized excavator will be processed with symmetrically distributed connection holes (such as Fig.11 As shown in the figure, an oil filling hole will be processed on the wall of the connecting hole. The lubricating oil in the oil filling hole is used to continuously lubricate the connection hole and the pin shaft. The overall shape is symmetrical. After the connecting rod is completed, it will not be put into use directly. The inner wall of the connecting hole of the connecting rod needs to be fine-ground. Grinding the inner wall of the connecting hole of the connecting rod of a medium-sized excavator is an important task. It is related to the tightness of the connection between the connecting rod and other components (such as pin shafts, bushings, etc.) and the reliability of the overall operation.

[0004] In the prior art, the connecting hole of the connecting rod is mostly polished manually with the help of a polishing machine. During polishing, the connecting rod is first locked with the help of a tool, and then the inner wall of the connecting hole of the connecting rod is polished with a hole grinding machine. On the one hand, it is difficult to ensure the polishing accuracy with manual technology, which will directly affect the roundness of the connecting hole, which is not conducive to the close fit of the pin and the connecting rod, and the polishing quality needs to be improved. On the other hand, there are two connecting holes in the connecting rod, and the two connecting holes have a certain positional relationship. Manual polishing needs to be carried out one by one, and it is also impossible to ensure whether there is a slight change in the positional relationship of the two connecting holes after the polishing is completed, which will further have an adverse effect on the polishing quality. In addition, the overall manual polishing of the two connecting holes takes a long time, and the polishing efficiency needs to be improved, which is not conducive to the batch shipment of connecting rods. Summary of the invention

[0005] Technical problem to be solved: The present invention provides a medium-sized excavator connecting rod processing and grinding device, which can solve the above-mentioned problems.

[0006] Technical solution: In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution, a connecting rod processing and grinding device for a medium-sized excavator, a connecting rod processing and grinding device for a medium-sized excavator, comprising a base frame, a vertical frame is fixedly connected to the upper end of the rear side wall of the base frame, a movable frame is movably provided inside the base frame, a positioning and locking mechanism for positioning and locking the connecting rod is provided between the vertical frame and the base frame, and a grinding mechanism for grinding the inner wall of the connecting hole of the connecting rod is provided inside the movable frame.

[0007] The positioning and locking mechanism includes a plurality of electric push rods 2 fixedly connected to the top of the stand, the output end of each electric push rod 2 faces downward and is fixedly connected to a mounting frame, three cone heads corresponding to the oil filling holes of the connecting rod are arranged below the mounting frame, and a positioning assembly for adjusting the positions of the three cone heads is arranged between the mounting frame and each cone head, a support plate for placing the connecting rod is arranged below the cone head, the lower side of the support plate is fixedly connected to the output end of the plurality of electric push rods 1, and a lower end of each electric push rod is fixedly connected to the base frame, and a spacing display assembly is arranged on the right side of the support plate and on the top of the moving frame.

[0008] The hole grinding mechanism includes an outer ring seat which is symmetrically and movably arranged inside the movable frame. The upper and lower sides of the two outer ring seats are jointly provided with a shaft assembly for controlling the opposite movement thereof. A rotating drum is rotatably connected inside the outer ring seat. Grinding rods are symmetrically arranged on the rear side of the rotating drum. A coupling assembly for controlling the two grinding rods to operate synchronously is arranged inside the rotating drum. A rotating assembly for controlling the rotation of the two rotating drums is jointly arranged on the lower sides of the two rotating drums. Insertion assemblies for controlling the movement of the two rotating drums toward the connecting rod are jointly arranged on the left and right sides of the movable frame.

[0009] The positioning locking mechanism and the hole grinding mechanism are used in coordination, so that the connection holes at both ends of the connecting rod can be quickly and synchronously ground.

[0010] As a preferred technical solution of the present invention, the positioning assembly includes a plurality of sliding rods one fixedly connected between the left and right walls of the mounting frame, each sliding rod one is slidably connected with a mounting seat and a sliding guide frame, the mounting seat and the sliding guide frame are respectively fixedly connected to the two end output ends of the first double-axis electric push rod, the first double-axis electric push rod is fixedly connected to the bottom of the mounting frame, the left and right central axis surface of the first double-axis electric push rod coincides with the left and right central axis surface of the moving frame, a sliding rod two extending in the front and back direction is fixedly connected to the center line sliding guide frame of the two, and sliding rods symmetrically distributed front and back are slidably connected to the sliding rod two, the sliding rods on the front and rear sides are also fixedly connected to the two end output ends of the second double-axis electric push rod, the second double-axis electric push rod is fixedly connected in the sliding guide frame, the front and back central axis surface of the sliding guide frame coincides with the front and back central axis surface of the mounting frame, and the three cone heads are respectively fixedly connected to the lower center of the two sliders and the mounting seat.

[0011] As a preferred technical solution of the present invention, the interval display assembly includes a scale reading instrument 1 fixedly connected to the upper side of the left outer ring seat, and a scale reading instrument 2 fixedly connected to the rear end of the right side of the support plate. The scale reading instrument 1 is slidably installed on the scale 1, and the scale 1 is fixedly connected to the upper side of the movable frame. The scale starting end of the scale 1 faces right and corresponds to the left-right central axis position of the movable frame. The scale reading instrument 2 is slidably installed on the scale 2, and the scale 2 is fixedly connected to the rear side wall of the base frame. The scale starting end of the scale 2 faces upward and corresponds to the height of the central axis of the rotating drum.

[0012] As a preferred technical solution of the present invention, the shaft assembly includes a bidirectional screw rod rotatably connected to the upper side of the interior of the mobile frame, and a guide rod 2 fixedly connected to the lower side of the interior of the mobile frame. The left and right outer ring seats are symmetrically threadedly connected to the bidirectional screw rod and slidably connected to the guide rod 2. One end of the bidirectional screw rod extends to the outside of the mobile frame and is fixedly connected to the output end of the motor 3. The motor 3 is fixedly connected to the outside of the mobile frame.

[0013] As a preferred technical solution of the present invention, the coupling assembly includes a fixed frame 1 fixedly connected to the front end of a rotating drum, a motor 4 is fixedly connected to the front center of the fixed frame 1, the motor 4 is a small motor, the output end of the motor 4 is fixedly connected to a driving rod facing backwards, the driving rod is rotatably connected in an adapter sleeve 2, the adapter sleeve 2 passes through and is fixed in the center of the fixed frame 1, a center gear is fixedly connected to the rear end of the driving rod, a connecting gear is symmetrically meshed with the periphery of the center of the center gear, the periphery of each connecting gear is respectively meshed with a belt gear, the two belt gears are symmetrically distributed about the central axis of the center gear, the rear center of the belt gear is fixedly connected to the front end of the grinding rod, the front center of the belt gear is rotatably connected to the adapter sleeve 1, and a distance adjustment component for controlling the change of the spacing between the two grinding rods is provided between the two adapter sleeves 1 in the same rotating drum.

[0014] As a preferred technical solution of the present invention, the distance adjusting component includes a fixing frame 2 fixedly connected to the front side of a fixing frame 1, a fourth dual-axis electric push rod is fixedly connected to the front center of the fixing frame 2, both end output ends of the fourth dual-axis electric push rod are fixedly connected to a connecting frame 2, and the connecting frames 2 on both sides are respectively fixedly connected to the adapter sleeve 1 on both sides, and the distance adjusting component also includes a central connecting arm rotatably connected to the periphery of the adapter sleeve 2, the two ends of the central connecting arm are hinged with hinge arms through pin seats, one end of the hinge arm away from the central connecting arm is hinged to the adapter sleeve 1, and the connecting gear is rotatably connected to the pin seat through a short rod 1.

[0015] As a preferred technical solution of the present invention, the rotating assembly includes a gear ring fixedly connected to the outer wall of the rotating drum, a driving gear is meshedly connected to the lower side of the gear ring, the driving gear is rotatably connected to the outer ring seat through short rod 2, the front end of short rod 2 is also fixedly connected to the second bevel gear, the outer periphery of the second bevel gear is meshedly connected to the first bevel gear, the center of the first bevel gear is fixedly connected to a connecting sleeve, the connecting sleeve is rotatably connected to a plate, the plate is fixedly connected to the outer ring seat, the left and right side connecting sleeves are commonly limited and slidably connected to the limiting sliding shaft, the limiting sliding shaft is rotatably connected between the left and right walls of the moving frame, one end of the limiting sliding shaft extends to the outside of the moving frame and is fixedly connected to the output end of motor 2, and motor 2 is fixedly connected to the outside of the moving frame.

[0016] As a preferred technical solution of the present invention, the insertion assembly includes a plurality of guide rods 1 fixedly connected between the front and rear walls of the base frame, and a translation screw rotatably connected between the front and rear walls of the base frame. Connecting ears are fixedly connected to the positions of each guide rod 1 and the translation screw at the outer side of the movable frame corresponding to the positions of each guide rod 1 and the translation screw. The translation screw is threadedly connected to one of the connecting ears, and the remaining connecting ears are slidingly connected to each guide rod 1. One end of the translation screw extends to the outside of the base frame and is fixedly connected to the output end of motor 1. Motor 1 is fixedly connected to the outside of the base frame. A supporting component for supporting the grinding rod is provided on the rear side wall of the base frame.

[0017] As a preferred technical solution of the present invention, the supporting component includes a guide groove 2 which is symmetrically opened on the rear side wall of the base frame at the height of the central axis of the rotating drum, a moving block 2 is connected to the guide groove 2 in a limited sliding manner, a connecting frame 1 is fixedly connected to the rear side of the moving block 2, and the connecting frame 1 on both sides is symmetrically fixedly connected to the output ends of both ends of the third double-axis electric push rod, the third double-axis electric push rod is fixedly connected to the base frame, the front center of the moving block 2 is rotatably connected to the mounting plate, the mounting plate is symmetrically provided with a guide groove 1, the guide groove 1 is connected to the moving block 1 in a limited sliding manner, and the front center of the moving block 1 is rotatably connected to a nested connection.

[0018] Beneficial effects: 1. The positioning and locking mechanism adopted by the present invention utilizes the oil filling hole distribution and shape characteristics of the connecting rod to perform three-point pressure against the hole to effectively lock the connecting rod, effectively ensure the stability of the grinding of the connecting rod connecting hole, and further ensure the grinding quality of the connecting rod connecting hole. The three-point position can be adjusted to the position that meets the oil filling hole distribution requirements according to the specifications of the specific connecting rod. It has strong applicability and is easy to use.

[0019] 2. The hole grinding mechanism adopted in the present invention utilizes double grinding rods to perform synchronous rotation and revolution to grind the connecting holes, which effectively improves the overall work efficiency. At the same time, the method of synchronous grinding of two connecting holes is adopted to further improve the work efficiency. In addition, the grinding rod can fit and contact connecting holes of different diameters according to the specifications of the specific connecting rod, thereby further improving the applicability and saving time and effort in use.

[0020] 3. The positioning locking mechanism and hole grinding mechanism adopted by the present invention can automatically complete the synchronous and rapid grinding of two connecting holes of connecting rods of different specifications, which significantly improves the work efficiency. The whole process is completed automatically, which is convenient and quick to use. At the same time, both the connecting rod and the grinding rod have high stability, which can effectively ensure the grinding quality of the connecting rod connecting hole and ensure that the wall of the connecting hole is smooth and has a high concentricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention after the stand is removed.

[0024] Figure 3 It is a schematic diagram of the three-dimensional connection structure of the positioning component and the stand of the present invention.

[0025] Figure 4 It is a schematic diagram of the internal three-dimensional connection structure of the slide guide frame of the present invention.

[0026] Figure 5 It is a schematic diagram of the internal rear view structure of the mobile frame of the present invention.

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the support component of the present invention from a first viewing angle.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the support component of the present invention from a second viewing angle.

[0029] Figure 8 It is a schematic diagram of the three-dimensional connection structure of the outer ring seat, the rotating assembly and the connecting assembly of the present invention.

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the joint rotation assembly of the present invention.

[0031] Fig.10 It is a schematic diagram of the connection structure of the central gear, the second adapter sleeve and the driving rod of the present invention.

[0032] Fig.11 It is a schematic diagram of the style of the excavator connecting rod of the present invention.

[0033] In the figure: 1, base frame; 2, stand; 3, positioning locking mechanism; 31, support plate; 32, cone head; 33, electric push rod 1; 34, interval display component; 341, ruler 1; 342, scale reading instrument 1; 343, ruler 2; 344, scale reading instrument 2; 35, adjustment component; 351, mounting frame; 352, mounting seat; 353, slide bar 1; 354, first dual-axis electric push rod; 355, slide block; 35 6. Slide guide frame; 357. Slide rod 2; 358. Second double-axis electric push rod; 36. Electric push rod 2; 4. Hole grinding mechanism; 41. Grinding rod; 42. Insertion assembly; 421. Support component; 4211. Third double-axis electric push rod; 4212. Mounting plate; 4213. Nesting; 4214. Moving block 1; 4215. Guide groove 1; 4216. Moving block 2; 4217. Connecting frame 1; 422. Connecting ear; 42 3. Guide rod 1; 424. Motor 1; 425. Translation screw rod; 43. Rotation assembly; 431. Motor 2; 432. Limiting slide shaft; 433. Plate; 434. First bevel gear; 435. Connecting sleeve; 436. Second bevel gear; 437. Driving gear; 438. Gear ring; 439. Rotating drum; 4391. Fixed frame 1; 44. Axis assembly; 441. Bidirectional screw rod; 442. Motor 3; 443. Guide rod 1; 444. Bidirectional screw rod; 445. Motor 3; 446. Rod two; 45, coupling assembly; 451, center gear; 452, connecting gear; 453, belt gear; 454, motor four; 455, distance adjustment component; 4551, fixed frame two; 4552, fourth dual-axis electric push rod; 4553, connecting frame two; 456, hinge arm; 457, adapter sleeve one; 458, center connecting arm; 459, adapter sleeve two; 4510, driving rod; 46, outer ring seat; 5, moving frame. DETAILED DESCRIPTION

[0034] The embodiments of the present invention are described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways as defined and covered by the claims.

[0035] See also Figure 1 A connecting rod processing and grinding device for a medium-sized excavator comprises a base frame 1, a vertical frame 2 is fixedly connected to the upper end of the rear side wall of the base frame 1, a movable frame 5 is movably provided inside the base frame 1, a positioning and locking mechanism 3 for positioning and locking the connecting rod is provided between the vertical frame 2 and the base frame 1, and a grinding mechanism 4 for grinding the inner wall of the connecting hole of the connecting rod is provided inside the movable frame 5.

[0036] See also Figure 1 , Figure 2 and Figure 3The positioning and locking mechanism 3 includes a plurality of electric push rods 36 fixedly connected to the top of the stand 2, the output end of each electric push rod 36 faces downward and is fixedly connected to a mounting frame 351, and three cone heads 32 corresponding to the oil filling holes of the connecting rod are arranged below the mounting frame 351, and a positioning component 35 for adjusting the positions of the three cone heads 32 is arranged between the mounting frame 351 and each cone head 32, and a support plate 31 for placing the connecting rod is arranged below the cone head 32, and the lower side of the support plate 31 is fixedly connected to the output end of a plurality of electric push rods 33, and the lower end of each electric push rod 33 is fixedly connected to the base frame 1, and a spacing display component 34 is commonly arranged on the right side of the support plate 31 and the top of the moving frame 5.

[0037] During specific operation, the mounting frame 351 is controlled to move downward by the electric push rod 2 36 to drive the three cone heads 32 to move downward as a whole to press against the oil filling hole of the connecting rod. The cone head 32 and the circular oil filling hole cooperate with each other in a three-point contact manner, which can greatly ensure the stability of the connecting rod locking. The supporting plate 31 is driven upward by the electric push rod 1 33 to lift the connecting rod, so that the upper and lower central axis surfaces of the connecting rods of different thicknesses can be adjusted to the same position, which is convenient for the upper and lower alignment of the grinding holes and ensures that the grinding mechanism 4 can be accurately inserted into the connecting hole.

[0038] See also Figure 1 , Figure 5 and Figure 8 The hole grinding mechanism 4 includes an outer ring seat 46 which is symmetrically and movably arranged inside the movable frame 5. The upper and lower sides of the two outer ring seats 46 are jointly provided with a shaft assembly 44 for controlling the opposite movement thereof. A rotating cylinder 439 is rotatably connected inside the outer ring seat 46. A grinding rod 41 is symmetrically arranged on the rear side of the rotating cylinder 439. A coupling assembly 45 for controlling the two grinding rods 41 to operate synchronously is arranged inside the rotating cylinder 439. A rotating assembly 43 for controlling the rotation thereof is jointly arranged on the lower side of the two rotating cylinders 439. An insertion assembly 42 for controlling the movement thereof toward the connecting rod is jointly arranged on the left and right sides of the movable frame 5.

[0039] By using the positioning locking mechanism 3 and the hole grinding mechanism 4 in coordination, the connection holes at both ends of the connecting rod can be quickly and synchronously ground.

[0040] See also Figure 3 and Figure 4The positioning assembly 35 includes a plurality of slide bars 353 fixedly connected between the left and right walls of the mounting frame 351, each slide bar 353 is slidably connected with a mounting seat 352 and a slide guide frame 356, the mounting seat 352 and the slide guide frame 356 are respectively fixedly connected to the output ends of the first double-axis electric push rod 354 at both ends, the first double-axis electric push rod 354 is fixedly connected to the bottom of the mounting frame 351, the left and right central axis surface of the first double-axis electric push rod 354 coincides with the left and right central axis surface of the moving frame 5, and the center line of the two slide guides A second slide bar 357 extending in the front-to-back direction is fixedly connected in the frame 356, and sliders 355 symmetrically distributed in the front and back are slidably connected to the second slide bar 357. The sliders 355 on the front and back sides are also fixedly connected to the output ends of the second dual-axis electric push rod 358 respectively. The second dual-axis electric push rod 358 is fixedly connected in the sliding guide frame 356. The front-to-back central axis surface of the sliding guide frame 356 coincides with the front-to-back central axis surface of the mounting frame 351. The three cone heads 32 are fixedly connected to the lower center of the two sliders 355 and the mounting seat 352 respectively.

[0041] During specific operation, the first double-axis electric push rod 354 is used to control the mounting seat 352 and the sliding guide frame 356 to move synchronously in opposite directions, so as to adjust the left-right straight-line distance of the three cone heads 32. For connecting rods of different lengths, the spacing between the two connecting holes varies. The first double-axis electric push rod 354 is used to control the changing position of the cone head 32 to meet the use of connecting rods of different lengths. The second double-axis electric push rod 358 is used to control the two sliders 355 to change the spacing, so as to adjust the front-to-back spacing of the two cone heads 32 on the right side. For connecting rods of different widths, the spacing between the two oil filling holes on the right connecting hole also varies. The second double-axis electric push rod 358 is used to control the cone head 32 to meet the use of connecting rods of different widths.

[0042] See also Figure 1 and Figure 2 The interval display assembly 34 includes a scale reading instrument 1 342 fixedly connected to the upper side of the left outer ring seat 46, and a scale reading instrument 2 344 fixedly connected to the rear end of the right side of the support plate 31. The scale reading instrument 1 342 is slidably installed on a ruler 1 341, and the ruler 1 341 is fixedly connected to the upper side of the mobile frame 5. The scale starting end of the ruler 1 341 faces right and corresponds to the left-right central axis position of the mobile frame 5. The scale reading instrument 2 344 is slidably installed on a ruler 2 343, and the ruler 2 343 is fixedly connected to the rear side wall of the base frame 1. The scale starting end of the ruler 2 343 faces upward and corresponds to the central axis height of the rotating drum 439.

[0043] During specific work, the distance from the outer ring seat 46 to the left and right central axis of the movable frame 5 can be directly read through the scale reading instrument 342. For the connecting rod, there are specific dimensional data before processing. The reading *2 on the scale reading instrument 342 is required to meet the hole spacing of the two connecting holes of the connecting rod, which can ensure that the connecting hole and the polishing rod 41 are accurately aligned in the left and right directions. The vertical distance from the support plate 31 to the central axis of the rotating drum 439 can be directly read through the scale reading instrument 344. The reading *2 on the scale reading instrument 344 is required to meet the thickness of the connecting rod, which can ensure that the connecting hole and the polishing rod 41 are accurately aligned in the up and down directions.

[0044] See also Figure 5 and Figure 8 The pair of shaft components 44 include a bidirectional screw rod 441 rotatably connected to the upper side of the interior of the mobile frame 5, and a guide rod 443 fixedly connected to the lower side of the interior of the mobile frame 5. The left and right outer ring seats 46 are symmetrically threadedly connected to the bidirectional screw rod 441 and slidably connected to the guide rod 443. One end of the bidirectional screw rod 441 extends to the outside of the mobile frame 5 and is fixedly connected to the output end of the motor 3 442. The motor 3 442 is fixedly connected to the outside of the mobile frame 5.

[0045] During specific operation, the motor three 442 drives the bidirectional screw rod 441 to rotate, thereby controlling the two outer ring seats 46 to move synchronously along the guide rod two 443, and the outer ring seat 46 drives the grinding rod 41 to change its position, so that the grinding rod 41 can be accurately aligned with the two connecting holes of the connecting rods of different lengths in the left and right directions.

[0046] See also Figure 5 , Figure 8 , Fig. 9 and Fig.10 The coupling assembly 45 includes a fixing frame 4391 fixedly connected to the front end of the rotating drum 439, a motor 454 is fixedly connected to the front center of the fixing frame 4391, the motor 454 is a small motor, the output end of the motor 454 is fixedly connected to a driving rod 4510 facing backward, the driving rod 4510 is rotatably connected in the adapter sleeve 459, the adapter sleeve 459 is fixed through the center of the fixing frame 4391, the rear end of the driving rod 4510 is fixedly connected to the central gear 451, the outer periphery of the central gear 451 A connecting gear 452 is symmetrically meshed with the center, and the periphery of each connecting gear 452 is respectively meshed with a belt gear 453, and the two belt gears 453 are distributed symmetrically with respect to the central axis of the central gear 451. The rear center of the belt gear 453 is fixedly connected to the front end of the grinding rod 41, and the front center of the belt gear 453 is rotatably connected to the adapter sleeve 457. A distance adjustment component 455 for controlling the change of the spacing between the two grinding rods 41 is provided between the two adapter sleeves 457 in the same rotating cylinder 439.

[0047] See also Fig. 9 and Fig.10 The distance adjusting component 455 includes a fixing frame 2 4551 fixedly connected to the front side of the fixing frame 1 4391, a fourth dual-axis electric push rod 4552 is fixedly connected to the front center of the fixing frame 2 4551, both ends of the output ends of the fourth dual-axis electric push rod 4552 are fixedly connected to a connecting frame 2 4553, and the connecting frames 2 4553 on both sides are respectively fixedly connected to the adapter sleeve 1 457 on both sides, and the distance adjusting component 455 also includes a central connecting arm 458 rotatably connected to the periphery of the adapter sleeve 2 459, and both ends of the central connecting arm 458 are hinged with hinge arms 456 through pin seats, and one end of the hinge arm 456 away from the central connecting arm 458 is hinged to the adapter sleeve 1 457, and the connecting gear 452 is rotatably connected to the pin seat through a short rod 1.

[0048] During specific operation, the motor 454 is used to control the driving rod 4510 to drive the central gear 451 to rotate, and the central gear 451 drives the two connecting gears 452 to control the two rotating gears 453 to rotate, and the two rotating gears 453 respectively drive the respectively connected grinding rods 41 to perform synchronous grinding operation, and the fourth dual-axis electric push rod 4552 controls the connecting frame 2 4553 to drive the two adapter sleeves 1 457 to move towards each other, so as to change the spacing between the two grinding rods 41, which can meet the grinding of connecting holes with different apertures. When the adapter sleeve 1 457 moves, the hinge arm 456 can drive the central connecting arm 458 to change its angle, and the central connecting arm 458 drives the connecting gear 452 to rotate a certain angle around the central gear 451, so as to adapt to the position change of the adapter sleeve 1 457.

[0049] See also Figure 1 , Figure 5 and Figure 8 The rotating assembly 43 includes a gear ring 438 fixedly connected to the outer wall of the rotating drum 439, and a driving gear 437 is meshedly connected to the lower side of the gear ring 438. The driving gear 437 is rotatably connected to the outer ring seat 46 through a second short rod. A second bevel gear 436 is also fixedly connected to the front end of the second short rod. The outer periphery of the second bevel gear 436 is meshedly connected to the first bevel gear 434. The center of the first bevel gear 434 is fixedly connected to a connecting sleeve 435, which is rotatably connected to a plate 433, and the plate 433 is fixedly connected to the outer ring seat 46. The connecting sleeves 435 on the left and right sides are jointly limited and slidably connected to a limiting sliding shaft 432, and the limiting sliding shaft 432 is rotatably connected between the left and right walls of the mobile frame 5. One end of the limiting sliding shaft 432 extends to the outside of the mobile frame 5 and is fixedly connected to the output end of the second motor 431, and the second motor 431 is fixedly connected to the outside of the mobile frame 5.

[0050] During specific operation, the motor 431 controls the rotation of the limit sliding shaft 432 to drive the two connecting sleeves 435 to rotate synchronously, and the connecting sleeve 435 drives the first bevel gear 434 to rotate to engage the second bevel gear 436 to rotate, and the second bevel gear 436 drives the driving gear 437 to engage the gear ring 438 to drive the rotating drum 439 to rotate, and the rotation of the rotating drum 439 drives the two grinding rods 41 to revolve, so that the grinding rods 41 can automatically grind the inner wall of the connecting hole completely.

[0051] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The insertion assembly 42 includes a plurality of guide rods 423 fixedly connected between the front and rear walls of the base frame 1, and a translation screw rod 425 rotatably connected between the front and rear walls of the base frame 1. Connecting ears 422 are fixedly connected to the positions of the guide rods 423 and the translation screw rods 425 on the outer side of the mobile frame 5. The translation screw rod 425 is threadedly connected to one of the connecting ears 422, and the remaining connecting ears 422 are slidably connected to each guide rod 423. One end of the translation screw rod 425 extends to the outside of the base frame 1 and is fixedly connected to the output end of the motor 424. The motor 424 is fixedly connected to the outside of the base frame 1. A supporting component 421 for supporting the grinding rod 41 is provided on the rear side wall of the base frame 1; the supporting component 421 includes a pair A guide groove 2 is symmetrically provided on the rear side wall of the base frame 1 at the height of the central axis of the rotating drum 439, and a moving block 4216 is connected to the guide groove 2 in a limited sliding manner, and a connecting frame 1 4217 is fixedly connected to the rear side of the moving block 4216, and the connecting frames 1 4217 on both sides are symmetrically fixedly connected to the output ends of the third dual-axis electric push rod 4211 at both ends, and the third dual-axis electric push rod 4211 is fixedly connected to the base frame 1, and the front center of the moving block 4216 is rotatably connected to the mounting disk 4212, and a guide groove 1 4215 is symmetrically provided on the mounting disk 4212, and a moving block 4214 is connected to the guide groove 1 4215 in a limited sliding manner, and the front center of the moving block 1 4214 is rotatably connected to the nesting 4213.

[0052] During specific operation, the motor 424 controls the translation screw 425 to rotate, thereby driving the mobile frame 5 and the grinding rod 41 to be inserted into the connecting hole of the connecting rod along the guide rod 423, so that the grinding rod 41 enters the connecting hole as a whole until the grinding rod 41 is inserted into the nesting 4213. A rubber sleeve is installed in the nesting 4213. When the nesting 4213 is not in position, the nesting 4213 can be manually pushed to change its position along the guide groove 4215, so that the grinding rod 41 can be accurately aligned with the nesting 4213. 4211 controls the moving block 4216 to drive the mounting plate 4212 to move as a whole, so that the center of the moving block 4216 can coincide with the central axis of the rotating drum 439. When the grinding rod 41 is running, the nesting 4213 rotates with the grinding rod 41 due to the friction, and the suspended end of the grinding rod 41 is supported by the nesting 4213 to avoid large shaking of the grinding rod 41 during operation. Before insertion, the distance between the two grinding rods 41 can be reduced to avoid collision with the wall of the connecting hole, and then the distance can be increased to make the grinding rod 41 contact with the wall of the connecting hole.

[0053] It should be noted that the friction between the moving block 4214 and the inner wall of the guide groove 4215 can keep the nesting 4213 in a static state when not subjected to external thrust.

[0054] During operation: S1: First, place the connecting rod with the oil filling hole facing upward on the support plate 31, and check the size of the connecting rod. Then, adjust the positions of the three cone heads 32 according to the distribution size of the oil filling holes of the connecting rod. During adjustment, the first double-axis electric push rod 354 controls the mounting seat 352 and the sliding guide frame 356 to move synchronously in opposite directions, so as to adjust the left-right straight-line distance of the three cone heads 32. The second double-axis electric push rod 358 controls the two sliders 355 to change the spacing, so as to adjust the front-to-back spacing of the two cone heads 32 on the right side. At the same time, the support plate 31 is driven upward by the electric push rod 1 33, so as to lift the connecting rod. The distance from the support plate 31 to the central axis of the rotating drum 439 is directly read by the scale reader 2 344. The reading * 2 on the scale reader 2 344 is required to meet the thickness of the connecting rod, and then the operation of the electric push rod 1 33 is stopped.

[0055] S2: The mounting frame 351 is controlled to move downward by the electric push rod 2 36 to drive the three cone heads 32 to move downward as a whole to approach the oil filling hole of the connecting rod. During the approaching stage, the position of the connecting rod is continuously fine-tuned until the cone head 32 and the oil filling hole are accurately aligned. Then, the cone head 32 is controlled by the electric push rod 2 36 to press the connecting rod.

[0056] S3: Then check the size and specification of the connecting rod, and control the two-way screw rod 441 to rotate through the motor three 442 to control the two outer ring seats 46 to move synchronously along the guide rod two 443, and the outer ring seat 46 drives the grinding rod 41 to change its position, so that the grinding rod 41 can be accurately aligned with the two connecting holes of the connecting rods of different lengths in the left and right directions, and at the same time, the distance from the outer ring seat 46 to the left and right middle section of the movable frame 5 is directly read through the scale reader one 342, and the reading * 2 on the scale reader one 342 is required to meet the hole distance between the two connecting holes of the connecting rod. After the position is determined, stop the motor three 442, and at the same time, control the moving block two 4216 through the third dual-axis electric push rod 4211 to drive the mounting plate 4212 to move as a whole, so that the center of the moving block two 4216 can coincide with the central axis of the rotating drum 439.

[0057] S4: Then, the motor 424 controls the translation screw 425 to rotate and drives the moving frame 5 to control the grinding rod 41 to be inserted into the connecting hole of the connecting rod along the guide rod 423, so that the grinding rod 41 enters the connecting hole as a whole until the grinding rod 41 is inserted into the nesting 4213. A rubber sleeve is installed in the nesting 4213. When the nesting 4213 is not in position, the nesting 4213 can be manually pushed to change its position along the guide groove 4215, so that the grinding rod 41 can be accurately aligned with the nesting 4213.

[0058] S5: Then, the motor 454 is operated to control the driving rod 4510 to drive the central gear 451 to rotate, and the central gear 451 drives the two connecting gears 452 to control the two belt rotating gears 453 to rotate, and the two belt rotating gears 453 respectively drive the respectively connected grinding rods 41 to perform synchronous grinding operation, and at the same time, the motor 2 431 controls the limited sliding shaft 432 to rotate to drive the two connecting sleeves 435 to rotate synchronously, and the connecting sleeve 435 drives the first bevel gear 434 to rotate to control the second bevel gear 436 to rotate, and the second bevel gear 436 drives the driving gear 437 to control the gear ring 438 to drive the rotating drum 439 to rotate, and the rotating drum 439 is driven by the rotating drum 439. The rotation of 9 drives the two grinding rods 41 to revolve, so that the grinding rods 41 can automatically grind the inner wall of the connecting hole completely. If the size of the connecting rod connecting hole changes, the fourth dual-axis electric push rod 4552 controls the connecting frame 2 4553 to drive the two adapter sleeves 1 457 to move in opposite directions, so as to change the spacing between the two grinding rods 41, which can meet the grinding of connecting holes with different apertures. When the adapter sleeve 1 457 moves, the hinge arm 456 can drive the central connecting arm 458 to change its angle, and the central connecting arm 458 drives the connecting gear 452 to rotate a certain angle around the central gear 451, so as to adapt to the position change of the adapter sleeve 1 457.

[0059] S6: After the grinding is completed, the cone head 32 is moved away from the connecting rod, and the grinding rod 41 is withdrawn from the connecting hole, and the grinding connecting rod can be directly taken out.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A connecting rod processing and grinding device for a medium-sized excavator, comprising a base frame (1), characterized in that: The upper end of the rear side wall of the base frame (1) is fixedly connected to a vertical frame (2); a movable frame (5) is movably provided inside the base frame (1); a positioning and locking mechanism (3) for positioning and locking the connecting rod is provided between the vertical frame (2) and the base frame (1); a grinding mechanism (4) for grinding the inner wall of the connecting hole of the connecting rod is provided inside the movable frame (5); The positioning locking mechanism (3) comprises a plurality of electric push rods (36) fixedly connected to the top of the stand (2), the output end of each electric push rod (36) facing downward and fixedly connected to a mounting frame (351), three cone heads (32) corresponding to the oil injection holes of the connecting rod are arranged below the mounting frame (351), and a positioning assembly (35) for adjusting the positions of the three cone heads (32) is arranged between the mounting frame (351) and each cone head (32), and a support plate (31) for placing the connecting rod is arranged below the cone head (32), the lower side of the support plate (31) is fixedly connected to the output end of a plurality of electric push rods (33), the lower end of each electric push rod (33) is fixedly connected to the bottom frame (1), and a spacing display assembly (34) is arranged on the right side of the support plate (31) and on the top of the moving frame (5); The position adjustment component (35) comprises a first double-axis electric push rod (354) and a second double-axis electric push rod (358); for connecting rods of different lengths, the spacing between the two connecting holes varies, and the first double-axis electric push rod (354) operates to control the cone head (32) to change position to meet the use of connecting rods of different lengths; for connecting rods of different widths, the spacing between the two oil injection holes on the right connecting hole also varies, and the second double-axis electric push rod (358) operates to control the cone head (32) to meet the use of connecting rods of different widths; The hole grinding mechanism (4) comprises an outer ring seat (46) movably arranged inside the movable frame (5) in a left-right symmetrical manner, the two outer ring seats (46) are provided with a shaft assembly (44) for controlling the outer ring seats to move in opposite directions on the upper and lower sides, a rotating cylinder (439) is rotatably connected inside the outer ring seat (46), a grinding rod (41) is symmetrically arranged on the rear side of the rotating cylinder (439), a joint rotating assembly (45) for controlling the two grinding rods (41) to operate synchronously is arranged inside the rotating cylinder (439), a rotating assembly (43) for controlling the two rotating cylinders (439) to rotate is provided on the lower sides, and an insertion assembly (42) for controlling the movement of the rotating cylinder toward the connecting rod is provided on the left and right sides of the movable frame (5); The insertion assembly (42) comprises a plurality of guide rods (423) fixedly connected between the front and rear walls of the base frame (1), and a translation screw (425) rotatably connected between the front and rear walls of the base frame (1); a connecting ear (422) is fixedly connected to the position of each guide rod (423) and the translation screw (425) on the outer side of the movable frame (5); the translation screw (425) is threadedly connected to one of the connecting ears (422); the remaining connecting ears (422) are slidably connected to each guide rod (423); one end of the translation screw (425) extends to the outside of the base frame (1) and is fixedly connected to the output end of a motor (424); the motor (424) is fixedly connected to the outside of the base frame (1); and a supporting component (421) for supporting the grinding rod (41) is provided on the rear side wall of the base frame (1); The interval display assembly (34) comprises a first scale reading instrument (342) fixedly connected to the upper side of the left outer ring seat (46), and a second scale reading instrument (344) fixedly connected to the right rear end of the support plate (31); the first scale reading instrument (342) and the shaft alignment assembly (44) cooperate to ensure that the connection hole and the grinding rod (41) are accurately aligned in the left-right direction, and the second scale reading instrument (344) ensures that the connection hole and the grinding rod (41) are accurately aligned in the up-down direction; By using the positioning locking mechanism (3) in conjunction with the hole grinding mechanism (4), synchronous and rapid grinding of the connecting holes at both ends of the connecting rod can be achieved.

2. A connecting rod processing and grinding device for a medium-sized excavator according to claim 1, characterized in that: The positioning assembly (35) further comprises a plurality of slide bars (353) fixedly connected between the left and right walls of the mounting frame (351), each slide bar (353) being slidably connected to a mounting seat (352) and a slide guide frame (356), the mounting seat (352) and the slide guide frame (356) being respectively fixedly connected to the output ends of both ends of a first dual-axis electric push rod (354), the first dual-axis electric push rod (354) being fixedly connected to the bottom of the mounting frame (351), the left and right central axis surfaces of the first dual-axis electric push rod (354) being coincident with the left and right central axis surfaces of the moving frame (5), and the centerline slide guides of the two being aligned. A second slide bar (357) extending in the front-to-back direction is fixedly connected in the frame (356), and sliders (355) symmetrically distributed in the front and back directions are slidably connected to the second slide bar (357). The sliders (355) on the front and back sides are also fixedly connected to the output ends of the second double-axis electric push rod (358) respectively. The second double-axis electric push rod (358) is fixedly connected in the slide guide frame (356), and the front-to-back central axis surface of the slide guide frame (356) coincides with the front-to-back central axis surface of the mounting frame (351). The three cone heads (32) are respectively fixedly connected to the lower center of the two sliders (355) and the mounting seat (352).

3. A connecting rod processing and grinding device for a medium-sized excavator according to claim 1, characterized in that: The scale reading instrument 1 (342) is slidably mounted on the scale ruler 1 (341), the scale ruler 1 (341) is fixedly connected to the upper side of the movable frame (5), the scale starting end of the scale ruler 1 (341) faces rightward and corresponds to the position of the left-right central axis surface of the movable frame (5), and the scale reading instrument 2 (344) is slidably mounted on the scale ruler 2 (343), the scale ruler 2 (343) is fixedly connected to the rear side wall of the base frame (1), the scale starting end of the scale ruler 2 (343) faces upward and corresponds to the height of the central axis of the rotating drum (439).

4. A connecting rod processing and grinding device for a medium-sized excavator according to claim 1, characterized in that: The shaft assembly (44) comprises a bidirectional screw rod (441) rotatably connected to the upper side of the interior of the moving frame (5), and a second guide rod (443) fixedly connected to the lower side of the interior of the moving frame (5); two left and right outer ring seats (46) are symmetrically threadedly connected to the bidirectional screw rod (441) and slidably connected to the second guide rod (443); one end of the bidirectional screw rod (441) extends to the outside of the moving frame (5) and is fixedly connected to the output end of the third motor (442); and the third motor (442) is fixedly connected to the outside of the moving frame (5).

5. The connecting rod processing and grinding device for a medium-sized excavator according to claim 1, characterized in that: The coupling assembly (45) comprises a fixing frame 1 (4391) fixedly connected to the front end of the rotating drum (439); a motor 4 (454) is fixedly connected to the front center of the fixing frame 1 (4391); the motor 4 (454) is a small motor; the output end of the motor 4 (454) is fixedly connected to a driving rod (4510) facing backwards; the driving rod (4510) is rotatably connected to a transfer sleeve 2 (459); the transfer sleeve 2 (459) is fixedly connected to the center of the fixing frame 1 (4391); the rear end of the driving rod (4510) is fixedly connected to a central gear (451); the central gear (451) The connecting gears (452) are symmetrically meshed with each other at the periphery, and the periphery of each connecting gear (452) is respectively meshed with a belt gear (453). The two belt gears (453) are symmetrically distributed about the central axis of the central gear (451). The rear center of the belt gear (453) is fixedly connected to the front end of the grinding rod (41), and the front center of the belt gear (453) is rotatably connected to the adapter sleeve (457). A spacing adjustment component (455) for controlling the change of the spacing between the two grinding rods (41) is provided between the two adapter sleeves (457) in the same rotating drum (439).

6. A connecting rod processing and grinding device for a medium-sized excavator according to claim 5, characterized in that: The distance adjusting component (455) comprises a second fixing frame (4551) fixedly connected to the front side of the first fixing frame (4391); a fourth dual-axis electric push rod (4552) is fixedly connected to the front center of the second fixing frame (4551); both output ends of the fourth dual-axis electric push rod (4552) are fixedly connected to a second connecting frame (4553); the second connecting frames (4553) on both sides are respectively fixedly connected to the first adapter sleeve (457) on both sides; the distance adjusting component (455) further comprises a central connecting arm (458) rotatably connected to the periphery of the second adapter sleeve (459); both ends of the central connecting arm (458) are hinged to hinge arms (456) via pin seats; one end of the hinge arm (456) away from the central connecting arm (458) is hinged to the first adapter sleeve (457); and the connecting gear (452) is rotatably connected to the pin seat via a short rod.

7. A connecting rod processing and grinding device for a medium-sized excavator according to claim 1, characterized in that: The rotating assembly (43) comprises a gear ring (438) fixedly connected to the outer wall of the rotating drum (439), the lower side of the gear ring (438) is meshingly connected to a driving gear (437), the driving gear (437) is rotatably connected to the outer ring seat (46) via a second short rod, the front end of the second short rod is also fixedly connected to a second bevel gear (436), the outer periphery of the second bevel gear (436) is meshingly connected to a first bevel gear (434), the center of the first bevel gear (434) is fixedly connected to a connecting sleeve (435), and the connecting sleeve (435) is fixedly connected to the outer ring seat (46). The connecting sleeve (435) is rotatably connected to the plate (433), the plate (433) is fixedly connected to the outer ring seat (46), the connecting sleeves (435) on the left and right sides are slidably connected to the limit sliding shaft (432), the limit sliding shaft (432) is rotatably connected between the left and right walls of the moving frame (5), one end of the limit sliding shaft (432) extends to the outside of the moving frame (5) and is fixedly connected to the output end of the second motor (431), and the second motor (431) is fixedly connected to the outside of the moving frame (5).

8. The connecting rod processing and grinding device for a medium-sized excavator according to claim 1, characterized in that: The support component (421) comprises a guide groove 2 which is symmetrically arranged on the rear side wall of the base frame (1) at a height corresponding to the central axis of the rotating drum (439); a movable block 2 (4216) is slidably connected in a limited position in the guide groove 2; a connecting frame 1 (4217) is fixedly connected to the rear side of the movable block 2 (4216); the connecting frames 1 (4217) on both sides are symmetrically fixedly connected to the output ends of the third double-axis electric push rod (4211); the third double-axis electric push rod (4211) is fixedly connected to the base frame (1); a mounting plate (4212) is rotatably connected to the front center of the movable block 2 (4216); a guide groove 1 (4215) is symmetrically arranged on the center of the mounting plate (4212); a movable block 1 (4214) is slidably connected in a limited position in the guide groove 1 (4215); and a nesting (4213) is rotatably connected to the front center of the movable block 1 (4214).

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