A rotary multi-station connecting rod honing machine

Abstract

The present invention relates to the field of mechanical automation production, and in particular to a rotary multi-station connecting rod special honing machine, including a machine body base, a column, a rotary table, a floating fixture, a honing processing module, a vibration type automatic feeding device, a rotary synchronous grabbing manipulator, and a fixture switch device. The column is fixedly mounted on the machine body base, the rotary table is fixedly mounted in the center of the machine body base, a plurality of floating fixtures are mounted on the rotary table, the honing processing module is fixedly mounted on the top of the column, the vibration type automatic feeding device is fixedly mounted on one side of the machine body base, the rotary synchronous grabbing manipulator is fixedly mounted between two columns, and the fixture switch device is fixedly mounted on the rotary table. The present invention has the advantages of compact structure, low use cost, and high degree of automation.

Description

Technical Field

[0001] The invention relates to the field of mechanical automation production, in particular to a rotary multi-station connecting rod special honing machine. Background Art

[0002] With the development of the manufacturing industry, the requirements for parts processing accuracy in mass production are gradually increasing, among which the requirements for the size tolerance, shape tolerance, position tolerance and roughness of connecting rod workpiece holes are also constantly increasing. Therefore, connecting rod workpieces often need to be honed to ensure the quality requirements of related holes.

[0003] At present, most of the honing of connecting rod workpiece holes uses general honing equipment, and manual clamping and loading and unloading are required during the entire processing. This solution is relatively traditional and has low processing efficiency and consumes a lot of human resources. Therefore, the actual processing cost is often difficult to control. Therefore, the market urgently needs high-efficiency and low-cost special automated honing equipment for connecting rod workpieces.

[0004] In view of the above problems, the present invention designs a rotary multi-station connecting rod special honing machine through innovation. Summary of the invention

[0005] The purpose of the present invention is to provide a rotary multi-station connecting rod honing machine to overcome the deficiencies in the prior art.

[0006] The present invention discloses a rotary multi-station connecting rod honing machine, which is characterized by comprising a machine body base, a column, a rotary table, a floating fixture, a honing processing module, a vibration type automatic feeding device, a rotary synchronous grabbing manipulator, and a fixture switch device. The column is fixedly mounted on the machine body base, the rotary table is fixedly mounted in the center of the machine body base, a plurality of floating fixtures are mounted on the rotary table, the honing processing module is fixedly mounted on the top of the column, the vibration type automatic feeding device is fixedly mounted on one side of the machine body base, the rotary synchronous grabbing manipulator is fixedly mounted between two columns, and the fixture switch device is fixedly mounted on the rotary table.

[0007] Preferably, the rotary worktable is fixedly installed in the center of the fuselage base, and includes a turntable base, a first motor mounting plate, a first motor, a precision reducer, gears, and a turntable. The turntable base is installed on the fuselage base, the first motor mounting plate is fixedly connected to the turntable base, the first motor is fixedly installed on the first motor mounting plate, the precision reducer is fixedly installed in the center of the turntable base, the first motor and the input end of the precision reducer are transmitted through gears, and the output end of the precision reducer is fixedly connected to the turntable. The overall design makes the overall structure of the machine tool more compact and more stable.

[0008] Preferably, a plurality of floating fixtures are installed on the rotary workbench, which include a fixed seat, a first deflection seat, a second deflection seat, a positioning seat, a first slider, a first linear guide, a pressure block, a pull rod, a spring, a balance bracket, and a counterweight. The first deflection seat is installed on the fixed seat and can rotate around the transverse axis, and the second deflection seat is installed on the first deflection seat and can rotate around the longitudinal axis, so that the workpiece is in a floating balance state. The positioning seat is fixedly installed on the second deflection seat, the workpiece is placed on the positioning seat, the first slider is fixedly installed on the second deflection seat, the first linear guide is installed on both sides of the pressure block, the pressure block is fixedly connected to the pull rod, a spring is installed between the pull rod and the first slider, the balance bracket is fixed on the second deflection seat, and the counterweight is fixed on the balance bracket. During operation, the pressure block returns to the initial position under the action of the spring and is placed above the workpiece, effectively preventing the workpiece from moving and leaving the positioning seat with the honing tool after processing, thereby improving safety and stability, having a high degree of automation, and further improving processing efficiency. At the same time, the horizontal and vertical adjustability and flexibility of the floating fixture make the workpiece positioning more accurate and the processing accuracy is greatly improved.

[0009] Preferably, the honing processing module is fixedly mounted on the top of the column, and includes a top plate, a second motor seat, a second motor, a coupling, a ball screw, a screw nut, a lifting plate, a guide sleeve, a guide column, a third motor seat, a third motor, a belt transmission mechanism, a spline shaft, a honing tool clamping mechanism, and a spline sleeve. The top plate is fixedly mounted on the column, the second motor seat is fixedly mounted on the top plate, the second motor is fixedly mounted on the second motor seat and connected to the ball screw through a coupling, the screw nut is fixedly mounted on the lifting plate, the guide sleeve is fixedly mounted on the top plate, the bottom of the guide column is fixedly connected to the lifting plate, the third motor seat is fixedly mounted on the top plate, the third motor is fixedly mounted on the third motor seat, the spline sleeve is fixedly mounted on the top plate, the third motor is connected to the spline sleeve through a belt transmission mechanism, the spline shaft is connected to the honing tool clamping mechanism, and the honing tool clamping mechanism is fixedly mounted on the lifting plate. During the processing, the motor is fixed, and the tool is vertically lifted and lowered with the lifting plate, which optimizes the defect of the motor and the tool being lifted and lowered at the same time in the prior art. During the lifting process, the shaft that drives the tool to rotate and lift uses a spline shaft, which can achieve rotation and vertical movement at the same time, making the structure of the processing operation components simpler and greatly reducing the occupation of the workspace. The overall structure of the honing processing module is more compact and more stable, and it can realize multi-station processing at the same time, greatly improving the processing efficiency.

[0010] Preferably, a rotary synchronous grasping robot is fixedly mounted on one side of a fuselage column close to a feeding device, and comprises a bracket, a rotary cylinder, an adapter plate, a first telescopic cylinder, a gripper mounting plate, and a pneumatic gripper. The bracket is fixedly mounted on the column, the rotary cylinder is fixedly mounted on the top of the adapter plate, the adapter plate is fixedly mounted on the bottom of the bracket, the first telescopic cylinder is fixedly mounted on the bottom of the adapter plate, the gripper mounting plate is fixedly mounted on the push rod of the first telescopic cylinder, and three pneumatic grippers are fixedly mounted on the gripper mounting plate and evenly distributed along the circumference. The structure is simple, and the entire processing process has a strong rhythmicity, which can realize rapid loading and unloading.

[0011] Preferably, the fixture switch device is fixedly mounted on the rotary table, and includes a cover, a second telescopic cylinder, a connecting rod mechanism, a second slider, a second linear guide rail, and a C-shaped claw. The cover is fixedly mounted on the rotary table, the second telescopic cylinder is fixedly mounted on the cover, the connecting rod mechanism is connected to the push rod of the second telescopic cylinder, the second slider is fixedly mounted on the cover, the second linear guide rail is connected to the connecting rod mechanism, and the C-shaped claw is fixedly mounted on the second linear guide rail. During the processing, the two floating fixtures can be operated at the same time, the overall compactness, fast processing rhythm, high efficiency, and good sealing, which will not cause the grinding oil to leak from the middle and damage the reducer, motor and other components.

[0012] The beneficial effects of the present invention are as follows: the machine adopts a rotary multi-station processing solution with a compact overall structure. By distributing the honing allowance of the connecting rod hole to multiple stations, the honing time of a single station is reduced, the production efficiency is improved, and the service life of the honing tool is extended. At the same time, combined with the automatic loading and unloading module, the automated production of parts can be realized, further reducing labor costs, and ultimately achieving control of the production efficiency, quality stability and cost of batch processing of honing connecting rod workpiece holes.

[0013] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a schematic diagram of the rotary table structure of the present invention;

[0016] Figure 3 It is a schematic diagram of the floating fixture structure of the present invention;

[0017] Figure 4 It is a schematic diagram of the structure of the honing processing module of the present invention;

[0018] Figure 5 This is a schematic diagram of the structure of the rotary synchronous grasping manipulator of the present invention;

[0019] Figure 6 It is a schematic diagram of the structure of the clamp switch device of the present invention;

[0020] Figure 7 It is a schematic diagram of the connecting rod workpiece structure of the present invention.

[0021] In the figure: 1-body base; 2-column; 3-rotating worktable; 4-floating fixture; 5-honing processing module; 6-vibration type automatic feeding device; 7-rotating synchronous grabbing manipulator; 8-fixture switch device; 301-turntable base; 302-first motor mounting plate; 303-first motor; 304-gear; 305-precision reducer; 306-turntable; 307-gear; 401-fixed seat; 402-first deflection seat; 403-second deflection seat; 404-positioning seat; 405-first slider; 406-first linear guide; 407-pressing block; 408-pull rod; 409-spring; 410-balance bracket; 411-counterweight block; 412-transverse axis; 413-longitudinal Shaft; 501-top plate; 502-second motor seat; 503-second motor; 504-coupling; 505-ball screw; 506-screw nut; 507-lifting plate; 508-guide sleeve; 509-guide column; 510-third motor seat; 511-third motor; 512-belt transmission mechanism; 513-spline shaft; 514 honing tool clamping mechanism; 515-spline sleeve; 701-bracket; 702-rotary cylinder; 703-adapter plate; 704-first telescopic cylinder; 705-grip mounting plate; 706-pneumatic gripper; 801-cover; 802-second telescopic cylinder; 803-connecting rod mechanism; 804-second slider; 805-second linear guide; 806-C-claw. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 6 As shown, the present invention discloses a specific embodiment of a rotary multi-station connecting rod special honing machine, including a body base 1, a column 2, a rotary table 3, a floating fixture 4, a honing processing module 5, a vibration type automatic feeding device 6, a rotary synchronous grabbing manipulator 7, and a fixture switch device 8. The column 2 is fixedly mounted on the body base 1, the rotary table 3 is fixedly mounted in the center of the body base 1, 12 floating fixtures 4 are installed on the rotary table, the honing processing module 5 is fixedly mounted on the top of the column 2, the vibration type automatic feeding device 6 is fixedly mounted on one side of the body base 1, the rotary synchronous grabbing manipulator 7 is fixedly mounted between the two columns 2, and the fixture switch device 8 is fixedly mounted on the rotary table 3.

[0023] In the embodiment of the present invention, Figure 2As shown, the rotary table 3 is fixedly installed in the center of the machine body base 1, which includes a turntable base 301, a first motor mounting plate 302, a first motor 303, a precision reducer 305, a gear 304, a gear 307, and a turntable 306. The turntable base 301 is installed on the machine body base 1, the first motor mounting plate 302 is fixedly connected to the turntable base 301, the first motor 303 is fixedly installed on the first motor mounting plate 302, the precision reducer 305 is fixedly installed on the turntable base 301, and the output end of the precision reducer 305 is fixedly connected to the turntable 306. The output shaft of the first motor 303 is fixedly installed with a gear 304, the input end of the reducer is fixedly installed with a gear 307, and the first motor 303 drives the gear to cooperate to realize the rotation of the turntable 306. The overall design makes the overall structure of the machine tool more compact and more stable.

[0024] In the embodiment of the present invention, a plurality of floating fixtures 4 are installed on the rotary table 3, such as Figure 3 As shown, the floating fixture 4 includes a fixed seat 401, a first deflection seat 402, a second deflection seat 403, a positioning seat 404, a first slider 405, a first linear guide 406, a pressure block 407, a pull rod 408, a spring 409, a balancing bracket 410, and a counterweight 411. The first deflection seat 402 is installed on the fixed seat 401 and can rotate around a transverse axis 412. The second deflection seat 403 is installed on the first deflection seat 402 and can rotate around a longitudinal axis 413, so that the workpiece is in a fixed position. In the floating balance state, the positioning seat 404 is fixedly mounted on the second deflection seat 403, the workpiece is placed on the positioning seat 404, the first slider 405 is fixedly mounted on the second deflection seat 403, the first linear guide 406 is mounted on both sides of the pressure block 407, the pressure block 407 is fixedly connected to the pull rod 408, a spring 409 is installed between the pull rod 408 and the first slider 405, the balance bracket 410 is fixed on the second deflection seat 403, and the counterweight 411 is fixed on the balance bracket 410. Before the floating fixture 4 is used, the counterweight 411 is added according to the actual situation to keep the floating fixture 4 balanced, the pull rod 408 is pulled to make the pressure block 407 retreat, the workpiece to be processed is placed on the positioning seat 404, the pull rod 408 is released, and the pressure block 407 returns to the initial position under the action of the spring 409 and is placed above the workpiece, effectively preventing the workpiece from moving and leaving the positioning seat 404 with the honing tool after processing, thereby improving safety and stability. After the processing is completed, the honing tool is withdrawn, the pull rod 408 pulls out the pressure block 407, the workpiece is taken out and a new workpiece is placed, the pull rod 408 is loosened, and the pressure block 407 rebounds under the action of the spring 409, and this process is repeated continuously, with a high degree of automation and further improved processing efficiency. At the same time, the adjustability and flexibility of the floating fixture 4 in the horizontal and vertical directions make the workpiece positioning more accurate, and the processing accuracy is also greatly improved.

[0025] In the embodiment of the present invention, the grinding processing module 5 is fixedly installed on the top of the column 2. Figure 4 As shown, it includes a top plate 501, a second motor seat 502, a second motor 503, a coupling 504, a ball screw 505, a screw nut 506, a lifting plate 507, a guide sleeve 508, a guide column 509, a third motor seat 510, a third motor 511, a belt transmission mechanism 512, a spline shaft 513, a honing tool clamping mechanism 514, and a spline sleeve 515. The top plate 501 is fixedly mounted on the column 2, the second motor seat 502 is fixedly mounted on the top plate 501, and the second motor 503 is fixedly mounted on the second motor seat 502 and connected to the ball screw through the coupling 504. 505 is connected, the lead screw nut 506 is fixedly mounted on the lifting plate 507, the guide sleeve 508 is fixedly mounted on the top plate 501, the bottom of the guide column 509 is fixedly connected to the lifting plate 507, the third motor seat 510 is fixedly mounted on the top plate 501, the third motor 511 is fixedly mounted on the third motor seat 510, the spline sleeve 515 is fixedly mounted on the top plate 501, the third motor 511 is connected to the spline sleeve 515 through the belt transmission mechanism 512, the spline shaft 513 is connected to the honing tool clamping mechanism 514, and the honing tool clamping mechanism 514 is fixedly mounted on the lifting plate 507. The second motor 503 drives the ball screw nut pair, and the guide column 509 guides to realize the vertical lifting of the lifting plate 507, that is, the lifting of each processing station. This design optimizes the defect of the motor and the tool lifting at the same time in the prior art. The third motor 511 drives the spline shaft 513 to rotate through the belt transmission, and the spline shaft 513 can simultaneously realize rotation and vertical movement, making the structure of the processing operation components simpler and greatly reducing the occupation of the working space. The overall structure of the honing processing module 5 is more compact and more stable, and can realize multi-station processing at the same time, greatly improving the processing efficiency.

[0026] In the embodiment of the present invention, the rotary synchronous grabbing manipulator 7 is fixedly installed on one side of the fuselage column 2 close to the feeding device 6. Figure 5 As shown, the rotary synchronous grasping manipulator 7 includes a bracket 701, a rotary cylinder 702, an adapter plate 703, a first telescopic cylinder 704, a gripper mounting plate 705, and a pneumatic gripper 706. The bracket 701 is fixedly mounted on the column 2, the rotary cylinder 702 is fixedly mounted on the top of the adapter plate 703, the adapter plate 703 is fixedly mounted on the bottom of the bracket 701, the first telescopic cylinder 704 is fixedly mounted on the bottom of the adapter plate 703, the gripper mounting plate 705 is fixedly mounted on the push rod of the first telescopic cylinder 704, and three pneumatic grippers 706 are fixedly mounted on the gripper mounting plate 705 and evenly distributed along the circumference. During the processing operation, the rotary cylinder 702 controls the rotation of the manipulator 7, and the first telescopic cylinder 704 controls the vertical lifting of the manipulator 7. The two cooperate with each other to realize the grasping of the workpiece. The overall structure is simple, the processing process has a strong rhythm, and can realize rapid loading and unloading.

[0027] In the embodiment of the present invention, the fixture switch device 8 is fixedly mounted on the rotary table 3. Figure 6 As shown, the fixture switch device 8 includes a cover 801, a second telescopic cylinder 802, a connecting rod mechanism 803, a second slider 804, a second linear guide 805, and a C-shaped claw 806. The cover 801 is fixedly mounted on the rotary table 3, the second telescopic cylinder 802 is fixedly mounted on the cover 801, the connecting rod mechanism 803 is connected to the push rod of the second telescopic cylinder 802, the second slider 804 is fixedly mounted on the cover 801, the second linear guide 805 is connected to the connecting rod mechanism 803, and the C-shaped claw 806 is fixedly mounted on the second linear guide 805. During operation, the second telescopic cylinder 802 pulls or pushes the connecting rod mechanism 803, and the connecting rod mechanism 803 drives the C-shaped claw 806 to move. In the whole process, the operation of two floating fixtures can be realized at the same time, the overall compactness, fast processing rhythm, high efficiency, and good sealing, and there will be no phenomenon of grinding oil leaking from the middle to damage the reducer, motor and other components.

[0028] It should be emphasized that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rotary multi-station connecting rod honing machine, characterized in that It includes a machine body base, a column, a rotary table, a floating fixture, a honing processing module, a vibration type automatic feeding device, a rotary synchronous grabbing manipulator, and a fixture switch device; the column is fixedly installed on the machine body base, the rotary table is fixedly installed in the center of the machine body base, a plurality of floating fixtures are installed on the rotary table, the honing processing module is fixedly installed on the top of the column, the vibration type automatic feeding device is fixedly installed on one side of the machine body base, the rotary synchronous grabbing manipulator is fixedly installed between the two columns, and the fixture switch device is fixedly installed on the rotary table; The floating fixture comprises a fixed seat, a first deflection seat, a second deflection seat, a positioning seat, a first slider, a first linear guide, a pressure block, a pull rod, a spring, a balancing bracket, and a counterweight. The first deflection seat is mounted on the fixed seat and can rotate around a transverse axis, the second deflection seat is mounted on the first deflection seat and can rotate around a longitudinal axis, the positioning seat is fixedly mounted on the second deflection seat, the workpiece is placed on the positioning seat, the first slider is fixedly mounted on the second deflection seat, the first linear guide is mounted on both sides of the pressure block, the pressure block is fixedly connected to the pull rod, a spring is installed between the pull rod and the first slider, the balancing bracket is fixed on the second deflection seat, and the counterweight is fixed on the balancing bracket; The honing processing module includes a top plate, a second motor seat, a second motor, a coupling, a ball screw, a screw nut, a lifting plate, a guide sleeve, a guide column, a third motor seat, a third motor, a belt transmission mechanism, a spline shaft, a honing tool clamping mechanism, and a spline sleeve. The top plate is fixedly mounted on the column, the second motor seat is fixedly mounted on the top plate, the second motor is fixedly mounted on the second motor seat and is connected to the ball screw through a coupling, the screw nut is fixedly mounted on the lifting plate, the guide sleeve is fixedly mounted on the top plate, the bottom of the guide column is fixedly connected to the lifting plate, the third motor seat is fixedly mounted on the top plate, the third motor is fixedly mounted on the third motor seat, the spline sleeve is fixedly mounted on the top plate, the third motor is connected to the spline sleeve through a belt transmission mechanism, the spline shaft is connected to the honing tool clamping mechanism, and the honing tool clamping mechanism is fixedly mounted on the lifting plate.

2. A rotary multi-station connecting rod honing machine according to claim 1, characterized in that The rotary worktable includes a turntable base, a first motor mounting plate, a first motor, a precision reducer, gears, and a turntable. The turntable base is installed on the fuselage base, the first motor mounting plate is fixedly connected to the turntable base, the first motor is fixedly mounted on the first motor mounting plate, the precision reducer is fixedly mounted on the turntable base, the first motor and the input end of the precision reducer are transmitted through gears, and the output end of the precision reducer is fixedly connected to the turntable.

3. A rotary multi-station connecting rod honing machine according to claim 1, characterized in that The rotary synchronous grasping manipulator includes a bracket, a rotary cylinder, an adapter plate, a first telescopic cylinder, a gripper mounting plate, and a pneumatic gripper. The bracket is fixedly mounted on a column, the rotary cylinder is fixedly mounted on the top of the adapter plate, the adapter plate is fixedly mounted on the bottom of the bracket, the first telescopic cylinder is fixedly mounted on the bottom of the adapter plate, the gripper mounting plate is fixedly mounted on the first telescopic cylinder push rod, and three pneumatic grippers are fixedly mounted on the gripper mounting plate and evenly distributed along the circumference.

4. A rotary multi-station connecting rod honing machine according to claim 1, characterized in that The clamp switch device includes a cover shell, a second telescopic cylinder, a connecting rod mechanism, a second slider, a second linear guide rail, and a C-shaped claw. The cover shell is fixedly mounted on the rotary workbench, the second telescopic cylinder is fixedly mounted on the cover shell, the connecting rod mechanism is connected to the push rod of the second telescopic cylinder, the second slider is fixedly mounted on the cover shell, the second linear guide rail is connected to the connecting rod mechanism, and the C-shaped claw is fixedly mounted on the second linear guide rail.

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