阅读说明：本技术 一种曲轴加工的全自动生产线 (Full-automatic production line for crankshaft machining ) 是由 谢政平 招景良 党军朋 梁羡升 曾文艺 郭炜文 王彦彪 于 2021-10-08 设计创作，主要内容包括：本发明公开了一种曲轴加工的全自动生产线,此全自动生产线通过工件输送导轨沿依次排布的各种加工机床进行曲轴工件的传输,并通过取料桁架和取料机械手沿工件输送导轨布置对曲轴工件进行定时抓取和安装,通过此布置可根据各加工工序的加工耗时来调整各加工工序中取放曲轴工件的数量,以实现各步骤之间加工时间的匹配,来实现全自动化地同时多个曲轴工件的加工,从而显著提高加工效率,此发明用于机加工生产线领域。(The invention discloses a full-automatic production line for crankshaft machining, which is used for conveying crankshaft workpieces along various machining machines which are sequentially arranged through a workpiece conveying guide rail, regularly grabbing and installing the crankshaft workpieces through a material taking truss and a material taking manipulator along the workpiece conveying guide rail, and adjusting the quantity of the crankshaft workpieces taken from and put into each machining process according to the machining time consumption of each machining process so as to realize the matching of the machining time among the steps and realize the full-automatic simultaneous machining of a plurality of crankshaft workpieces, thereby obviously improving the machining efficiency.)

1. The utility model provides a full automatic production line of bent axle processing which characterized in that includes:

a workpiece conveying guide rail for conveying a workpiece;

the material taking machine comprises a crankshaft end face machining tool, a long shaft machining lathe, a short shaft machining lathe, a finish machining lathe, a deep hole machining tool, an eccentric machining tool and a tail groove milling machine which are sequentially arranged along the conveying direction of a workpiece conveying guide rail, and a plurality of material taking trusses and material taking mechanical arms which are distributed along the workpiece conveying guide rail in a row, wherein the material taking trusses drive the material taking mechanical arms to take and place workpieces.

2. The fully automatic production line for crankshaft machining according to claim 1, characterized in that: the crankshaft end face machining machine tool is provided with a first Z-direction sliding plate and a second Z-direction sliding plate which are oppositely arranged at two sides, two oppositely arranged end face machining main shafts are respectively arranged on the first Z-direction sliding plate and the second Z-direction sliding plate, and an end face machining cutter is arranged on each end face machining main shaft; the long shaft machining lathe, the short shaft machining lathe, the finish machining lathe, the eccentric machining machine tool and the tail groove milling machine are provided with at least two groups of machining main shafts which are arranged in parallel so as to machine at least two workpieces simultaneously; and a third Z-direction sliding plate and a fourth Z-direction sliding plate which are oppositely arranged at two sides are arranged on the deep hole machining machine tool, and six groups of deep hole drilling main shafts which are arranged in parallel are respectively arranged on the third Z-direction sliding plate and the fourth Z-direction sliding plate.

3. The fully automatic production line for crankshaft machining according to claim 2, characterized in that: the lower part of the workpiece conveying guide rail is paved with a workbench parallel to the workpiece conveying guide rail, the workbench is provided with a plurality of crankshaft tool fixtures, and the crankshaft end face machining machine tool and the deep hole machining machine tool are arranged on two sides of the workbench.

4. The fully automatic production line for crankshaft machining according to claim 3, characterized in that: the crankshaft tool clamp comprises a crankshaft long-end clamping clamp, the crankshaft long-end clamping clamp comprises a tool base and two tool main bodies symmetrically arranged on the tool base, each tool main body is provided with a V-shaped supporting block respectively, a corner oil cylinder is arranged between the tool main bodies, a crankshaft pressing block extending towards two sides is installed at the top end of the corner oil cylinder, and the corner oil cylinder drives the crankshaft pressing block to rotate so as to pass through the crankshaft long-end clamping clamp to symmetrically clamp two crankshaft workpieces.

5. The fully automatic production line for crankshaft machining according to any one of claims 1 to 4, characterized in that: the material taking truss comprises a truss support and a beam guide rail, wherein the beam guide rail is linearly laid on the truss support, a material taking frame capable of moving along the beam guide rail and a material taking manipulator arranged at the end part of the material taking frame are arranged on the beam guide rail, the material taking frame comprises a Y-axis guide rail and a Z-axis guide rail, the Y-axis guide rail moves along the beam guide rail and is perpendicular to the beam guide rail, the Z-axis guide rail moves along the Z direction, and the end part of the material taking manipulator comprises two groups or four groups of material taking manipulators.

6. The fully automatic production line for crankshaft machining according to any one of claims 1 to 4, characterized in that: the material taking truss comprises a truss support and a beam guide rail which is linearly laid on the truss support, a Z-direction sliding plate which moves along the beam guide rail is arranged on the beam guide rail, a material taking manipulator which moves along the Z-direction sliding plate is arranged below the Z-direction sliding plate, and the end part of the material taking manipulator comprises two groups or four groups of material taking grippers.

7. The fully automatic production line for crankshaft machining according to claim 4, characterized in that: each crankshaft end face machining tool comprises two groups of end face machining main shafts and end face machining cutters, wherein the two groups of end face machining main shafts and the two groups of end face machining cutters are respectively arranged on two sides of the crankshaft long end clamping fixture.

8. The fully automatic production line for crankshaft machining according to claim 7, characterized in that: the end face machining cutter comprises a cutter head, a central drill bit is arranged in the middle of the cutter head, and an end face turning tool surrounding the central drill bit and an excircle turning tool located on the outer side of the end face turning tool are further arranged on the cutter head.

9. The fully automatic production line for crankshaft machining according to claim 4, characterized in that: the side surfaces of the long shaft machining lathe, the short shaft machining lathe, the finish machining lathe, the eccentric machining machine tool and the tail groove milling machine are provided with crankshaft workpiece main shafts located on the workbench, the crankshaft workpiece main shafts are used for clamping one ends of crankshaft workpieces, and the machining main shafts arranged in pairs at the other ends are used for machining the crankshaft workpieces clamped in pairs.

10. The fully automatic production line for crankshaft machining according to claim 4, characterized in that: three groups of crankshaft long end clamping fixtures are arranged on a workbench, which is positioned between two oppositely-arranged deep hole drilling main shafts, on the deep hole processing machine tool, the axes of six crankshaft workpieces in the three groups of crankshaft long end clamping fixtures are parallel to each other, and two ends of each crankshaft workpiece are positioned between the two oppositely-arranged deep hole drilling main shafts.

Technical Field

The invention belongs to the field of machining production lines, and particularly relates to a full-automatic production line for crankshaft machining.

Background

The existing full-automatic production line for parts with complex procedures, such as crankshafts and the like, is difficult to simultaneously process a plurality of crankshaft parts through one production line because the time for processing each procedure is inconsistent. After the full-automatic production line is formed by hard splicing, the situation that parts are piled up in a certain process due to the time-consuming difference of a single process can be caused, so that the full-automatic production in the true sense is difficult to realize, the parts need to be manually sorted and clamped in the middle flow, and the improvement of the whole production efficiency is not facilitated.

Disclosure of Invention

The invention mainly aims to provide a full-automatic production line for crankshaft machining, which can be used for comprehensively arranging the time of each machining process, realizing one-line simultaneous machining of multiple workpieces and obviously improving the productivity.

According to an embodiment of a first aspect of the invention, a full-automatic production line for crankshaft machining is provided, which comprises a workpiece conveying guide rail, a workpiece conveying device and a workpiece clamping device, wherein the workpiece conveying guide rail is used for conveying workpieces; the material taking machine comprises a crankshaft end face machining tool, a long shaft machining lathe, a short shaft machining lathe, a finish machining lathe, a deep hole machining tool, an eccentric machining tool and a tail groove milling machine which are sequentially arranged along the conveying direction of a workpiece conveying guide rail, and a plurality of material taking trusses and material taking mechanical arms which are distributed along the workpiece conveying guide rail in a row, wherein the material taking trusses drive the material taking mechanical arms to take and place workpieces.

According to the full-automatic production line for crankshaft machining, the crankshaft end face machining machine tool is provided with a first Z-direction sliding plate and a second Z-direction sliding plate which are oppositely arranged on two sides, two oppositely arranged end face machining main shafts are respectively arranged on the first Z-direction sliding plate and the second Z-direction sliding plate, and an end face machining tool is mounted on each end face machining main shaft; the long shaft machining lathe, the short shaft machining lathe, the finish machining lathe, the eccentric machining machine tool and the tail groove milling machine are provided with at least two groups of machining main shafts which are arranged in parallel so as to machine at least two workpieces simultaneously; and a third Z-direction sliding plate and a fourth Z-direction sliding plate which are oppositely arranged at two sides are arranged on the deep hole machining machine tool, and six groups of deep hole drilling main shafts which are arranged in parallel are respectively arranged on the third Z-direction sliding plate and the fourth Z-direction sliding plate.

According to the full-automatic production line for crankshaft machining, a workbench parallel to the workpiece conveying guide rail is laid below the workpiece conveying guide rail, a plurality of crankshaft tool fixtures are mounted on the workbench, and the crankshaft end face machining machine and the deep hole machining machine are arranged on two sides of the workbench.

According to the full-automatic production line for crankshaft machining, the crankshaft tool clamp comprises a crankshaft long-end clamping clamp, the crankshaft long-end clamping clamp comprises a tool base and two tool main bodies symmetrically arranged on the tool base, each tool main body is respectively provided with a V-shaped supporting block, a corner oil cylinder is arranged between the two tool main bodies, a crankshaft pressing block extending towards two sides is installed at the top end of the corner oil cylinder, and the corner oil cylinder drives the crankshaft pressing block to rotate so as to symmetrically clamp two crankshaft workpieces through the crankshaft long-end clamping clamp.

According to the full-automatic production line for crankshaft machining, the material taking truss comprises a truss support and a cross beam guide rail which is linearly laid on the truss support, a material taking frame which can move along the cross beam guide rail and a material taking manipulator which is arranged at the end part of the material taking frame are arranged on the cross beam guide rail, the material taking frame comprises a Y-axis guide rail which moves along the cross beam guide rail and is perpendicular to the cross beam guide rail and a Z-axis guide rail which is perpendicular to the cross beam guide rail and the Y-axis guide rail and can move in the Z direction, and two groups or four groups of material taking hand grips are arranged at the end part of the material taking manipulator.

According to the full-automatic production line for crankshaft machining, the material taking truss comprises a truss support and a beam guide rail which is linearly laid on the truss support, a Z-direction sliding plate which moves along the beam guide rail is arranged on the beam guide rail, a material taking manipulator which moves along the Z-direction sliding plate in the Z direction is arranged below the Z-direction sliding plate, and two groups or four groups of material taking grippers are arranged at the end part of the material taking manipulator.

According to the fully-automatic production line for machining the crankshafts, each crankshaft end face machining machine tool comprises two groups of end face machining main shafts and end face machining cutters, wherein the two groups of end face machining main shafts and the two groups of end face machining cutters are respectively arranged on two sides of the crankshaft long end clamping fixture.

According to the full-automatic production line for crankshaft machining, the end face machining cutter comprises a cutter head, a central drill bit is arranged in the middle of the cutter head, and an end face turning tool arranged around the central drill bit and an excircle turning tool located on the outer side of the end face turning tool are further arranged on the cutter head.

According to the fully automatic production line for crankshaft machining, the side surfaces of the long shaft machining lathe, the short shaft machining lathe, the finish machining lathe, the eccentric machining machine tool and the tail groove milling machine are provided with the crankshaft workpiece spindle on the workbench, the crankshaft workpiece spindle is used for clamping one end of a crankshaft workpiece, and machining of the crankshaft workpiece clamped in pairs is carried out through the machining spindles arranged in pairs at the other end.

According to the fully-automatic production line for crankshaft machining, three groups of crankshaft long-end clamping fixtures are arranged on a workbench, positioned between two oppositely-arranged deep-hole drilling main shafts, of the deep-hole machining machine tool, the axes of six crankshaft workpieces in the three groups of crankshaft long-end clamping fixtures are parallel to each other, and two ends of each crankshaft workpiece are positioned between the two oppositely-arranged deep-hole drilling main shafts.

One of the above technical solutions of the present invention has at least one of the following advantages or beneficial effects: this full-automatic production line of bent axle processing carries out the transmission of bent axle work piece through work piece conveying guide along the various machine tools of arranging in proper order to arrange along work piece conveying guide through getting material truss and material taking manipulator and snatch regularly and install the bent axle work piece, arrange through this and to adjust the quantity of putting the bent axle work piece in each manufacturing procedure according to the processing of each manufacturing procedure consuming time, with the matching of the process time between each step of realization, realize the processing of a plurality of bent axle work pieces simultaneously of full automatization, thereby show improvement machining efficiency.

Drawings

The invention is further described below with reference to the accompanying drawings and examples;

FIG. 1 is a schematic view of a layout structure of a single eccentric crankshaft production line according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of the layout structure of a double eccentric crankshaft production line according to a second embodiment of the present invention;

FIG. 3 is a schematic layout of a crankshaft end face machining tool used in the crankshaft workpiece machining process according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a layout structure of a double spindle tailstock lathe used in a crankshaft workpiece machining process according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a layout structure of a double-spindle numerically controlled lathe used in a crankshaft workpiece machining process according to an embodiment of the present invention;

FIG. 6 is a schematic layout structure of a deep hole processing machine tool used in the crankshaft workpiece processing technology according to an embodiment of the invention;

FIG. 7 is a schematic diagram of a layout structure of a material taking truss used in a crankshaft workpiece machining process according to an embodiment of the invention;

FIG. 8 is a schematic layout structure of a crankshaft tooling fixture used in a crankshaft workpiece machining process according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, and may be, for example, a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other elements or indirectly connected through one or more other elements or in an interactive relationship between two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the invention.

Referring to fig. 1 to 8, there is provided a fully automatic production line for crankshaft machining, including a workpiece conveying rail 100 for conveying a workpiece; the automatic material taking machine comprises a crankshaft end face machining lathe 110, a long shaft machining lathe 130, a short shaft machining lathe 140, a finish machining lathe 150, a deep hole machining lathe 120, an eccentric machining lathe 160 and a tail groove milling machine 170 which are sequentially arranged along the conveying direction of a workpiece conveying guide rail 100, and a plurality of material taking trusses 200 and material taking manipulators 210 which are distributed along the workpiece conveying guide rail 100 in a row, wherein each material taking truss 200 drives each material taking manipulator 210 to take and place a workpiece; a first Z-direction sliding plate 111 and a second Z-direction sliding plate 112 which are positioned on two opposite sides are arranged on the crankshaft end face machining machine tool 110, two end face machining main shafts 113 which are arranged in opposite directions are respectively arranged on the first Z-direction sliding plate 111 and the second Z-direction sliding plate 112, and an end face machining cutter 114 is arranged on each end face machining main shaft 113; the long axis processing lathe 130, the short axis processing lathe 140, the finishing lathe 150, the eccentric processing machine 160 and the tail groove milling machine 170 are provided with at least two groups of parallel machining main shafts so as to simultaneously process at least two workpieces; the deep hole processing machine 120 is provided with a third Z-direction sliding plate 121 and a fourth Z-direction sliding plate 122 which are oppositely arranged at two sides, and six groups of deep hole drilling main shafts 123 which are arranged in parallel are respectively arranged on the third Z-direction sliding plate 121 and the fourth Z-direction sliding plate 122.

In some embodiments of the present invention, a worktable 300 parallel to the workpiece conveying guide rail 100 is laid below the workpiece conveying guide rail 100, a plurality of crankshaft tool fixtures 310 are mounted on the worktable 300, and each of the crankshaft end face processing machine 110 and the deep hole processing machine 120 is disposed on both sides of the worktable 300.

In some embodiments of the present invention, the crankshaft fixture 310 includes a crankshaft long-end clamping fixture, the crankshaft long-end clamping fixture includes a fixture base 311 and two fixture bodies 312 symmetrically disposed on the fixture base 311, each fixture body 312 is respectively provided with a V-shaped supporting block 313, an angle cylinder 314 is disposed between the two fixture bodies 312, a crankshaft pressing block 315 extending to both sides is mounted at a top end of the angle cylinder 314, and the angle cylinder 314 drives the crankshaft pressing block 315 to rotate so as to symmetrically clamp the two crankshaft workpieces 1000 through the crankshaft long-end clamping fixture.

In some embodiments of the present invention, the material taking truss 200 includes a truss support and a cross beam guide rail linearly laid on the truss support, the cross beam guide rail is provided with a material taking frame capable of moving along the cross beam guide rail and a material taking manipulator 210 arranged at an end of the material taking frame, the material taking frame includes a Y-axis guide rail moving along the cross beam guide rail and perpendicular to the cross beam guide rail and a Z-axis guide rail perpendicular to the cross beam guide rail and Y-axis guide rail and capable of moving in the Z direction, and an end of the material taking manipulator 210 includes two or four groups of material taking grippers.

In some embodiments of the present invention, the material taking truss 200 includes a truss support and a cross beam guide rail linearly laid on the truss support, the cross beam guide rail is provided with a Z-direction sliding plate moving along the cross beam guide rail, a material taking manipulator 210 moving in the Z-direction along the Z-direction sliding plate is arranged below the Z-direction sliding plate, and an end of the material taking manipulator 210 includes two or four groups of material taking grippers.

In some embodiments of the present invention, each crankshaft facing machine 110 includes two sets of facing spindles 113 and facing tools 114 disposed on opposite sides of the crankshaft long end clamp.

In some embodiments of the present invention, the facing tool 114 includes a tool bit having a central drill bit disposed in a middle portion thereof, and a facing tool disposed around the central drill bit and an outer turning tool disposed outside the facing tool.

In some embodiments of the present invention, the sides of the long axis machining lathe 130, the short axis machining lathe 140, the finishing lathe 150, the eccentric processing machine 160, and the tail groove milling machine 170 are provided with crankshaft workpiece spindles on the worktable 300, and the crankshaft workpiece spindles are used for clamping one end of the crankshaft workpiece 1000 and processing the crankshaft workpiece 1000 clamped in pairs through the machining spindles arranged in pairs at the other end.

In some embodiments of the present invention, three sets of crankshaft long-end clamping fixtures are disposed on the working table 300 of the deep-hole drilling machine 120, which is located between two oppositely disposed deep-hole drilling spindles 123, the axes of six crankshaft workpieces 1000 in the three sets of crankshaft long-end clamping fixtures are parallel to each other, and two ends of each crankshaft workpiece 1000 are located between the two oppositely disposed deep-hole drilling spindles 123.

This full-automatic production line of bent axle processing carries out the transmission of bent axle work piece 1000 through work piece conveying guide rail 100 along the various machine tools of arranging in proper order to arrange along work piece conveying guide rail 100 through getting material truss 200 and reclaimer manipulator 210 and snatch and install bent axle work piece 1000 regularly, can adjust the quantity of getting in each manufacturing procedure and putting bent axle work piece 1000 according to the processing consuming time of each manufacturing procedure through this arrangement, in order to realize the matching of process time between each step, realize the processing of a plurality of bent axle work pieces 1000 simultaneously in full automatization, thereby show improvement machining efficiency.

The key parts of the air-conditioning compressor comprise an air cylinder, a flange and a crankshaft, wherein the processing technology of the crankshaft of the compressor is the most complex, the needed labor is the most, and the crankshaft is divided into a single eccentric crankshaft and a double eccentric crankshaft.

The processing technology of the single eccentric crankshaft comprises the following steps: OP10, flattening two end faces, punching center holes at two ends and turning an excircle at a short end; OP20, clamping the outer circle of the short end, pushing the center hole of the long end and turning the long shaft; OP30, clip long end, car short end; OP40, center holes at the long end and the short end of the top, and finish turning of the long shaft and the short shaft; OP50, drilling deep holes at two ends; OP60, car eccentricity; OP70, milling a tail groove; OP80, oil groove milling and oil hole drilling.

The processing technology of the double-eccentric crankshaft comprises the following steps: OP10, flattening two end faces, punching center holes at two ends and turning an excircle at a short end; OP20, clamping the outer circle of the short end, pushing the center hole of the long end and turning the long shaft; OP30, clip long end, car short end; OP40, center holes at the long end and the short end of the top, and finish turning of the long shaft and the short shaft; OP50, drilling deep holes at two ends; OP60, eccentric in the vehicle; OP70, eccentric outside the vehicle, OP80 and a milled tail groove; OP90, oil groove milling and oil hole drilling.

The machining process of the single eccentric crankshaft needs 8 procedures, the machining process of the double eccentric crankshaft needs 9 procedures, the procedures are very many, and the needed labor is also very much. And the shape of the crankshaft is complex, the variety and the quantity are large, and the characteristics of the crankshaft determine that the automation of the processing of the crankshaft is very difficult.

Along with the increasing and more expensive manpower, the more and more difficult workman is recruited, and the manual labor cost is higher and higher, urgent need develop the full-automatic production line of air conditioner compression key spare part bent axle processing.

The invention connects the processing machine tools of each procedure of the crankshaft into a full-automatic production line through a truss, a transfer mechanism, a positioning mechanism, a gripper, an automatic clamp and other mechanisms, and the processing machine tools of each procedure of the crankshaft are correspondingly changed and designed for realizing the crankshaft processing and being suitable for automatic feeding and discharging. In order to realize that the crankshaft machining is suitable for automatic feeding and discharging, the working procedures of the crankshaft are properly adjusted, and in order to realize the balance among the working procedures of the crankshaft, the machine tools of the working procedures of the crankshaft are specially designed.

In the patent of the invention, the full-automatic production line of the crankshaft consists of a crankshaft end face processing lathe 110, a long shaft processing lathe 130, a short shaft processing lathe 140, a finish machining lathe 150, a deep hole processing lathe 120, an eccentric processing lathe 160, a tail groove milling machine 170, a plurality of material taking trusses 200 and material taking manipulators 210 which are distributed along a workpiece conveying guide rail 100 in rows, and the like.

Specifically in single eccentric bent axle production line and the production line of two eccentric bent axles:

the single eccentric crankshaft production line comprises 1 special plane for drilling a central hole on a flat end surface and turning an excircle, 2 double-shaft lathes with tail seats, 2 double-shaft lathes with double spindles, 1 special plane for drilling a deep hole, 1 special plane for milling a tail groove with double spindles, 1 special plane for turning and milling a tail groove with a tail seat and 8 special planes for each process of crankshafts, and comprises 1 feeding warehouse, 3 double-shaft trusses, 5 three-shaft trusses, one positioning mechanism, 7 feeding and discharging cross-connection areas, 1 discharging area and other automatic components.

The double-eccentric crankshaft production line comprises 9 crankshaft special process machines such as a flat end face centering hole turning machine 1 machine, a double-spindle lathe with a tail seat 2 machine, a double-spindle lathe 3 machine, a deep hole drilling machine 1 machine, a double-spindle tail groove milling machine 1 machine, a double-spindle turning machine with a tail seat 1 machine and the like, and automatic components such as a feeding warehouse 1, a double-spindle truss 3 machine, a three-spindle truss 6 machine, a positioning mechanism 1, a feeding and discharging cross-connection area 8, a discharging area 1 machine and the like.

The crankshaft end face machining tool 110 is a special crankshaft machine for machining a center hole on a flat end face and turning an excircle, and the crankshaft end face machining tool 110 comprises two groups of end face machining main shafts 113 and end face machining tools 114 which are respectively arranged on two sides of a crankshaft long end clamping fixture.

In order to realize loading and unloading, the crankshaft special machine designs the material taking truss 200 and a machine tool into a whole, and adopts a machine tool robot integrated production line and a machine tool independent production line; in order to meet the capacity requirement of a crankshaft production line, two end face machining main shafts 113 are respectively arranged on two sides of the special crankshaft machine, and two parts can be machined at one time.

The machine tool of the crankshaft end face machining machine tool 110 is provided with two coordinate axes Z1 and Z2, and two spindle boxes are respectively arranged on a Z1-direction sliding plate and a Z2-direction sliding plate and can simultaneously machine two ends of a workpiece; the end face machining tool 114 adopts a combined tool, combines a center drill bit, an end face turning tool and an excircle turning tool together, and can simultaneously drill a center hole, flatten an end face and turn an excircle, so that the efficiency is improved, the machine tool is simplified, and the cost is reduced.

The crankshaft tooling clamp 310 mainly comprises a tooling base 311, a tooling main body 312, an oil circuit block, a V-shaped supporting block 313, a pressing plate, a floating cross beam and the like, wherein a corner oil cylinder 314 rotates by 90 degrees to facilitate loading and unloading of a workpiece, the corner oil cylinder 314 rotates to press down, the workpiece is pressed tightly through the floating cross beam and a crankshaft pressing block 315, and the corner oil cylinder is used for clamping a crankshaft workpiece 1000 during machining of an excircle and an end face of a short shaft end and an end face and a central hole of a long shaft end.

The installation of bent axle frock clamp 310 carries out the centre gripping of bent axle work piece 1000, still set up the last unloading transfer district that is on a parallel with work piece conveying guide rail 100 along work piece conveying guide rail 100 direction of delivery, go up unloading transfer district and include the guide rail, the hold-in range and set up in the slide of hold-in range both sides, be equipped with the cylinder on the slider of both sides and be located the thing board that puts that the cylinder top links to each other, the slider moves to next station along with guide rail and hold-in range, bent axle work piece 1000 is shelved on putting the thing board and is carried out the transportation and shift, play material loading, the conversion transfer effect in the unloading process, after last equipment has been processed, put the work piece in last unloading transfer district, next equipment gets the material from here.

The machining equipment such as the long shaft machining lathe 130, the short shaft machining lathe 140, the tail groove milling machine 170 and the like are all arranged in a double-spindle machine tool mode with a tailstock, the double-spindle machine tool with the tailstock and the turning and milling machine tool have three coordinate axes of an X axis, a Y axis and a Z axis, the machine tool is provided with 2 spindles, and two parts can be manufactured at one time.

On the basis of improving production efficiency, the capacity requirement of the whole automatic production line can be met, the material taking truss 200 and a machine tool are designed into a whole, the crankshaft can be conveniently and automatically fed and discharged, the workpiece spindle and the tailstock are designed to move front and back, the tool rest is designed to move up and down and left and right, and the rigidity is improved while the requirement of crankshaft automatic feeding and discharging is met.

In a single-crankshaft full-automatic production line, double-spindle numerically controlled lathes are used in working procedures OP30 and OP 60; in the full-automatic double-crankshaft production line, double-spindle lathes are used in the processes OP30, OP60 and OP 70. The double-spindle lathe mainly comprises a lathe body, a workbench 300, a spindle box, an X1 spindle sliding plate, an X2 spindle sliding plate, a Z1 spindle sliding plate and a Z2 spindle sliding plate, the lathe is provided with two spindles, two parts can be machined at one time, the machining efficiency is improved, meanwhile, the capacity requirement of a production line can be met, the lathe is provided with four feeding coordinate axes of X1, X2, Z1 and Z2, the two spindles can move independently, tool setting is convenient, machining precision is high, a truss and the lathe are designed into a whole, and crankshaft automation is convenient to achieve.

The tool for clamping the crankshaft workpiece 1000 in the process OP40 is composed of a driving center, a floating center, a tailstock center, end face driving teeth and the like, is used for finish turning of the long end and the short end of the crankshaft and a crankshaft thrust surface, and the driving center is installed at the flange end of the main shaft.

A deep hole machine tool 120 for processing of process OP50 comprises parts such as lathe bed, slide, Z axle servo drive system, the headstock, main motor, frock clamp, deep hole machine tool 120 has two coordinate axes of Z1, Z2, both ends respectively are provided with 6 main shafts, can carry out deep hole drilling to the both ends of work piece simultaneously and process 6 spare parts at one time, when improving machining efficiency, also can satisfy the productivity requirement of the full automatic production line of bent axle, design into a whole with the lathe with the truss, be convenient for automatic realization.

The tool for clamping the workpiece in the process OP50 comprises a tool main body 312, a corner oil cylinder 314, a floating lever, a tool pressing plate, a pressing nail, a tool mounting block, a V-shaped block and the like, is used for machining a deep hole of a crankshaft, the two ends of the crankshaft are machined simultaneously, the 6 crankshaft workpieces 1000 can be clamped and machined at one time, the tool mounting block is formed by self-boring of a spindle boring cutter on a machine tool, the V-shaped block is mounted on the tool mounting block, the concentricity of a workpiece spindle and the workpiece is guaranteed, products can be replaced quickly, and the model replacing efficiency is improved.

The tool for clamping the crankshaft workpiece 1000 in the process OP60 is composed of a rotary oil cylinder, a pull rod, a tool body, a chuck body, a standard chuck, an end face positioning cover, an eccentric adjusting cushion block and the like, is used for processing the eccentricity of a crankshaft, and the crankshaft with different eccentricity amounts is adjusted and replaced by replacing the eccentric adjusting cushion block and the chuck body in a sliding way of a guide rail of the tool body.

The eccentric detection mechanism is arranged at the eccentric machining station of the crankshaft and consists of a base, a driving motor, a guide rail, a positioning cylinder, an eccentric detection switch, a workpiece driving roller, a workpiece driving motor and the like, and the eccentric detection mechanism detects the eccentricity of the crankshaft so that the tail groove is machined by eccentric positioning in the next procedure.

The special crankshaft tail groove milling machine comprises a base, a sliding plate, a spindle box, an X-direction sliding plate, a working fixture, a two-shaft truss and the like, wherein the machine tool is provided with an X-axis coordinate axis, a workpiece is arranged on the X-direction sliding plate and is provided with two spindles, and two side disc milling cutters are arranged on the two spindles and can process two parts at one time, so that the efficiency is improved, and meanwhile, the capacity requirement of a crankshaft automatic production line can be met.

The tool for clamping the crankshaft workpiece 1000 in the process OP80 is composed of a main shaft flange, an eccentric positioning block, a tailstock center, a compressed air nozzle, a rotary joint, an air pipe and the like, compressed air automatically cleans the eccentric positioning block, a short shaft outer circle sleeve and the workpiece of the workpiece through the compressed air nozzle, and is used for machining oil grooves and oil holes in the outer circle of the crankshaft workpiece 1000, workpieces of different models only need to be replaced by the eccentric positioning block, and the tool is simple and convenient and fast to replace.

The full-automatic production line for processing the crankshaft of the air-conditioning compressor, which is related by the patent of the invention, properly adjusts the crankshaft process according to the process of the crankshaft processing, the characteristics of crankshaft automation and the capacity requirement of the crankshaft production line, so that the crankshaft process is suitable for the automation requirement; the machine tool in each working procedure of the crankshaft adopts a brand-new design, and can not only easily realize the automation requirement but also meet the capacity requirement of a crankshaft production line under the condition of meeting the processing requirement of the crankshaft process; the crankshaft special machine and the automatic feeding and discharging truss are designed into a whole, so that the requirement of automatic feeding and discharging can be met, and the automatic cost can be reduced; the machine tool robot is designed into a whole, the occupied area is small, the failure rate is low, and the safety performance is high; through last unloading transfer mechanism, carry out seamless connection with the equipment of each process of bent axle, connect into full automatization production line with the bent axle production line, this bent axle full automatization production line has following characteristics:

a. the process innovation is that the crankshaft process and machine tools of all the procedures of the crankshaft and the automation requirements are integrally considered, and the crankshaft process is properly adjusted according to the automation requirements of the machine tools so as to meet the requirements of easy automation realization.

b. The machine tool is innovative in structure, all crankshaft special machines are designed in an integrated mode through a machine tool robot, and the machine tool and the robot are designed into a whole.

b. The special machine tool for the crankshafts is designed according to the processing capacity of the crankshafts, the flat end face of the crankshafts is laid down by using double spindles, the crankshaft turning and milling machine tool adopts double spindles, and the special machine for drilling deep holes on the crankshafts adopts a 12-spindle structure, so that the machine tool for each process of the crankshafts can achieve balance capacity and can meet the capacity requirement of a crankshaft production line.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.