CN213497758U - Clamping device for machining precision parts - Google Patents

Abstract

The utility model discloses a clamping device for processing precision parts, which comprises a chuck, wherein the chuck is provided with at least one group of a first clamping component and a second clamping component, and the first clamping component and the second clamping component are both provided with one or more compression blocks I and II; the second clamping assembly and the first clamping assembly are radially and symmetrically arranged; the lower end face of the first pressing block is provided with a first protruding part which protrudes partially; and the second pressing block and the first pressing block are axially and symmetrically arranged, and the upper end surface of the second pressing block is provided with a second protruding part. The clamping device has large clamping force, and the cutter can partially or completely enter the notch of the groove, so that the cutting depth is deep.

Description

Clamping device for machining precision parts

Technical Field

The utility model relates to a preparation frock field of machinery, concretely relates to a clamping device for accurate parts machining.

Background

The machining of the precision parts is one of the machining processes, but the machining process is very strict because the machining precision requirement on the parts is higher and the requirements on the production machinery and the process are also higher, and the cutter feeding ring and the cutter discharging ring are buckled with each other. For this reason, a clamp for clamping precision parts needs to be more professional, and the positioning precision and the clamping force of the clamp affect the turning and machining precision of each step.

The clamping device is a device for clamping a workpiece and guiding a tool, and is contacted with a positioning reference of the workpiece for determining the correct position of the workpiece in the clamping device, so as to ensure the relative correct position of the workpiece relative to the tool and the processing movement of a machine tool during processing. However, in the clamping of precision parts, the clamping portion of the clamp should not be too large because of the small size and small machining allowance, otherwise the actual cutting portion of the workpiece exposed in the clamp is small, and particularly, when the tool is fed or withdrawn, the machining feed amount and the depth of cut of the workpiece are insufficient due to the collision with the clamp, and the clamp is damaged. However, if the clamping piece of the clamp is set too small, the clamping force of the clamp is insufficient, the workpiece becomes loose, which affects the positioning accuracy of clamping, and further causes poor cutting accuracy of the workpiece, and the product is scrapped.

The prior art discloses a lathe fixture (chinese patent No. CN201720432020.5), which comprises a chuck, a jaw, and a telescopic shaft, wherein the telescopic shaft is provided to extend into the workpiece, and then the piston ejector rod is used to reinforce and support the inside of the workpiece. Although the telescopic shaft can improve the stability of workpiece installation and reduce the offset, the telescopic shaft needs to be adjusted when workpieces with different diameters are clamped, so that the telescopic shaft is inconvenient, is not suitable for clamping precise workpieces, and has a narrow application range. Especially for some workpieces needing to be cut deeply, due to the fact that the end portion of the workpiece is provided with the telescopic shaft, in the machining process, the cutter cannot completely turn the end portion of the workpiece, and therefore the turning allowance of the workpiece needs to be properly increased in the manufacturing process to meet the requirement of sufficient cutting depth, and material cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough among the prior art, provide a clamping device for accurate parts machining, be applicable to the processing of accurate work piece, the centre gripping dynamics is big, and during the cutter can partly or whole entering groove incision, depth of cut is little with the cutting allowance, and material cost is lower.

The utility model discloses a following technical scheme can solve:

a clamping device for precision part machining comprising a chuck provided with at least one set of a first clamping assembly and a second clamping assembly, wherein:

the first clamping assembly is provided with one or more first compression blocks and second compression blocks;

the second clamping assembly is radially and symmetrically arranged with the first clamping assembly and is provided with one or more first pressing blocks and second pressing blocks;

the lower end face of the first pressing block is provided with a first protruding part which protrudes partially; the second pressing block and the first pressing block are axially and symmetrically arranged, and the upper end face of the second pressing block is provided with a second protruding part which partially protrudes;

the first clamping assembly and the second clamping assembly are arranged at intervals to form groove notches I, and the protruding portion I and the protruding portion are arranged at intervals to form groove notches II.

Preferably, the width of the first slot cut is greater than the width of the second slot cut, and part or all of the turning tool can be entered into the first slot cut.

Preferably, the cross section of the first slot cut is rectangular.

Preferably, the centers of the first groove notch and the second groove notch are provided with positioning grooves for clamping materials.

Preferably, the positioning groove is formed by the tops of the first pressing block and/or the second pressing block, and the positioning groove is a movable groove.

Preferably, the chuck rear end is equipped with the main shaft that is used for rotatory chuck, the main shaft front end with chuck fixed connection, the main shaft rear end is connected with the motor.

Preferably, an electromagnetic valve used for adjusting the clamping tightness of the first pressing block and the second pressing block is arranged in parallel with the main shaft, a control module is arranged at the front end of the electromagnetic valve, and the control module is connected with the main shaft.

Preferably, a sliding table device which can do reciprocating axial and/or radial motion is arranged below the main shaft and the electromagnetic valve, and the sliding table device can drive the chuck to move in multiple directions.

Preferably, the material is a cylindrical material with two ends having different structures, one end face of the cylindrical material is provided with a concave part, and the other end is a plane.

Preferably, the chuck is fixedly clamped at the end part, provided with the concave part, of the cylindrical material, the finished cylindrical material is provided with a middle notch, channels are arranged on the end surfaces of the two sides of the finished cylindrical material, and partial or all turning tools can enter the first notch to turn the middle notch.

The utility model discloses the main beneficial effect who gains as follows: this clamping device is including the chuck that is used for the clamping material, and is equipped with first centre gripping subassembly and second centre gripping subassembly on the chuck, and first centre gripping subassembly and second centre gripping subassembly all are equipped with the compact piece one and sticiss a piece two, and both are structurally the same, consequently under exerting force equally, and the centre gripping dynamics between them is unanimous, can not lead to the centre gripping dynamics different because of the inconsistent structure of first centre gripping subassembly or second centre gripping subassembly, makes the material fix a position inaccurate or because of the too big damage material of centre gripping dynamics.

First centre gripping subassembly and second centre gripping subassembly are radial symmetrical arrangement on the chuck position, and the material clamping is in relative centre between them, makes the centre gripping dynamics of both sides more even, and in addition, first centre gripping subassembly and second centre gripping subassembly interval set up and form groove incision one, and groove incision one both sides are the plane, and the turning cutter can partly or whole get into groove incision one when the darker material of turning depth, and the material cutting is complete, can satisfy sufficient cutting depth, and does not collide clamping part or chuck. Specifically, the first compression block and the second compression block are axially symmetrically arranged and are radially symmetrically arranged with the first clamping assembly and the second clamping assembly to form a cross-shaped structure, so that the clamping device has a better stabilizing effect. Wherein, the lower terminal surface that sticiss piece one is equipped with part convex bulge one, and two up ends of sticising piece are equipped with part convex bulge two, and bulge one and the setting of bulge two intervals form groove incision two, and bulge one has increased the area of contact of groove incision two with the material with setting up of bulge two, and it is bigger to make the tight dynamics of clamp, avoids or compensaties that the width of groove incision one is great, and makes the clamp force not enough, makes the material location not accurate. Therefore, the sufficient clamping force is guaranteed, and the sufficient cutting depth can be met under the condition of small turning allowance.

Actually, in the machining process, for some materials with deep cutting depth, the tool cannot completely turn to the required machining surface of the material, and for this reason, the turning allowance of the material needs to be properly reserved in the manufacturing process to ensure the clamping of the material and meet the sufficient cutting depth, but the material cost is also greatly increased. Therefore, some clamping devices on the market make the clamping dynamics increase for making increase clamping part and material area of contact, therefore set up great clamping part, but the actual turning part that the material exposes in the clamping part is less, leads to the processing feed volume of material not enough or depth of cut not enough because of colliding the clamping part when the turning cutter advances or moves back the sword, can lead to clamping device's damage even. Or some clamping parts set up too little clamping device, because of the material in clamping part centre gripping area of contact less, the centre gripping dynamics is little, the material is easy not hard up in the clamping part, influences the positioning accuracy who presss from both sides the dress, and this cutting accuracy that also can further lead to the material is poor or lead to the product to scrap.

Therefore, the utility model discloses effectively solve above-mentioned some clamping device's shortcoming, mainly be applicable to and process accurate, small component, it is big to have the centre gripping dynamics, the material is difficult not hard up, and depth of cut is dark, makes the little advantage of material cutting surplus.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a diagram of an overall installation position of a clamping device according to an embodiment of the present invention.

Fig. 2 is a partial view of a clamping device according to an embodiment of the present invention.

Fig. 3 is another partial view of the clamping device according to an embodiment of the present invention.

Fig. 4 is a front view of a clamping device according to an embodiment of the present invention.

Fig. 5 is another partial view of a clamping device according to an embodiment of the present invention.

Fig. 6 is another partial view of a clamping device according to an embodiment of the present invention.

Fig. 7 is a cylindrical material diagram of the holding device according to an embodiment of the present invention.

Fig. 8 is a diagram of a material product of the clamping device according to an embodiment of the present invention.

Fig. 9 is an overall structure diagram of an automatic production apparatus according to an embodiment of the present invention.

Fig. 10 is another overall structural view of the automatic manufacturing apparatus according to an embodiment of the present invention.

Fig. 11 is a structural view of a multi-station processing device of an automatic production apparatus according to an embodiment of the present invention.

Fig. 12 is a structural view of an automatic feeding device of an automatic production apparatus according to an embodiment of the present invention.

Fig. 13 is a structural view of another automatic feeding device of the automatic production equipment disclosed in an embodiment of the present invention.

Fig. 14 is a structural diagram of a reversing component of an automatic production apparatus according to an embodiment of the present invention.

Fig. 15 is a structural diagram of a positioning assembly of an automatic production apparatus according to an embodiment of the present invention.

Fig. 16 is a structural view of another multi-station processing device of the automatic production equipment according to an embodiment of the present invention.

Fig. 17 is a structural diagram of a blanking mechanism of an automatic production apparatus according to an embodiment of the present invention.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one.

As shown in fig. 1-3, as the embodiment of the present invention, a clamping device for precision parts machining is disclosed, which is installed on a machine tool or an automatic mechanical device, and can clamp and/or machine precision and small mechanical components, and also can be changed according to the size of different materials. In this embodiment, a gastrointestinal clamp member for use in processing medical instruments is mounted on an automated apparatus, as shown in fig. 1. The clamping device comprises a chuck 13 for clamping materials, the chuck 13 is provided with at least one group of first clamping assembly 11 and second clamping assembly 12, in this embodiment, a group of first clamping assembly 11 and a group of second clamping assembly 12, and of course, in other embodiments, a plurality of first clamping assemblies 11 and/or second clamping assemblies 12 may be provided to form a plurality of clamping portions or chucks 13. The first clamping assembly 11 and the second clamping assembly 12 are provided with one or more first pressing blocks 112 and second pressing blocks 113, and the two pressing blocks are structurally the same, so that under the same applied force, the clamping force of the two pressing blocks is consistent, the clamping force is not different due to inconsistent structures of the first clamping assembly 11 or the second clamping assembly 12, and the material is not accurately positioned or damaged due to overlarge clamping force. In this embodiment, one compressing block 112 and one compressing block 113 are provided, and in other embodiments, a plurality of compressing blocks 112 and/or two compressing blocks 113 may be provided, which also have the above-mentioned functions and can make the clamping force of the clamping device larger.

Furthermore, the first clamping assembly 11 and the second clamping assembly 12 are arranged in a radial symmetry mode at the position of the chuck 13, materials are clamped between the two clamping assemblies, clamping force on two sides of the clamping assemblies is more uniform, in addition, the first clamping assembly 11 and the second clamping assembly 12 are provided with the first groove cuts 14 at intervals, two sides of the first groove cuts 14 are planes, when the turning tool turns the materials with the deeper depth, the turning tool can partially or completely enter the first groove cuts 14, the materials are completely cut, the sufficient cutting depth can be met, and the materials do not collide with the clamping portion or the chuck 13. Specifically, the first pressing block 112 and the second pressing block 113 are axially symmetrically arranged, and are radially symmetrically arranged with the first clamping assembly 11 and the second clamping assembly 12 to form a cross-shaped structure, so that a better stabilizing effect is achieved. The lower end face of the first pressing block 112 is provided with a first protruding part 1121, the upper end face of the second pressing block 113 is provided with a second protruding part 1122, and the first protruding part 1121 and the second protruding part 1122 are arranged at intervals to form a second groove notch 14. Specifically, the first protrusion 1121 and the second protrusion 1122 are adjacent to the end face for clamping the material, so that the contact area between the second groove notch 15 and the material is increased, the clamping force is larger, the situation that the width of the first groove notch 14 is large or is compensated for, the clamping force is insufficient, and the material is not accurately positioned is avoided. Therefore, enough clamping force is guaranteed, and enough cutting depth can be met under the condition of smaller turning allowance.

Actually, in the machining process, for some materials with deep cutting depth, the tool cannot completely turn to the required machining surface of the material, and for this reason, the turning allowance of the material needs to be properly reserved in the manufacturing process to ensure the clamping of the material and meet the sufficient cutting depth, but the material cost is also greatly increased. Therefore, some clamping devices on the market make the clamping dynamics increase for making increase clamping part and material area of contact, therefore set up great clamping part, but the actual turning part that the material exposes in the clamping part is less, leads to the processing feed volume of material not enough or depth of cut not enough because of colliding the clamping part when the turning cutter advances or moves back the sword, can lead to clamping device's damage even. Or some clamping parts set up too little clamping device, because of the material in clamping part centre gripping area of contact less, the centre gripping dynamics is little, the material is easy not hard up in the clamping part, influences the positioning accuracy who presss from both sides the dress, and this cutting accuracy that also can further lead to the material is poor or lead to the product to scrap.

Specifically, in the present embodiment, the width of the first slot 14 is greater than the width of the second slot 15, and the first slot 14 has a function of positioning the material, and most importantly, a part or all of the turning tool can enter the first slot 14 to cut the deep portion of the material. The width of the second groove cut 15 is narrower than that of the second groove cut 15, so that the clamping force is increased, the materials are not easy to loosen, and clamping is more accurate. In other embodiments, the width of the second slot 15 may be greater than or equal to the width of the first slot 14, and the second slot also has a function of clamping and positioning, and is only deficient in clamping force. In addition, the protruding cross-sectional shapes of the first protruding portion 1121 and the second protruding portion 1122 are rectangular, so in other embodiments, a part or all of the cutters can enter the second groove cut 14 to perform deep material cutting.

As shown in fig. 4, the first slot 14 has a rectangular cross section, and two end faces are flat and have no protrusion, which is mainly for the purpose that the turning tool can freely enter and exit during feeding or retracting without colliding with the first clamping assembly 11 and the second clamping assembly 12. The second groove cut 15 is provided with a first partially convex protrusion 1121 on the upper end surface and a second partially convex protrusion 1122 on the lower end surface, so that a cross-sectional shape with a narrow middle part and wide two sides is formed, sufficient clamping force is guaranteed, material cost of the clamp is saved, and the clamp is more flexible in the material clamping process. In other embodiments, the first slot cut 14 and/or the second slot cut 15 may be provided with a plurality of protrusions or recesses, so as to form different widths or irregular cross-sectional shapes, which can meet the turning requirements of different materials.

Furthermore, a positioning groove 16 for clamping materials is arranged in the center of the first groove notch 14 and the second groove notch 15. The first groove notch 14 is vertically arranged relative to the second groove notch 15, the first groove notch 14 can axially position materials, and the second groove notch 22 can radially position materials, so that the positioning groove 16 is arranged at the centers of the first groove notch and the second groove notch more stably, and the stress is more uniform. In addition, the positioning groove 16 is provided with a round angle, and a symmetrical four-way positioning surface is formed by the round angle and the first groove notch 14, so that the contact area of the material and the positioning surface is increased, the clamping force is increased, the material is prevented from sliding off, and the material is prevented from being pinched by the excessively severe positioning surface when the clamping force is applied.

Specifically, in the present embodiment, the positioning groove 16 is formed by the tops of the two first pressing blocks 112 and the two second pressing blocks 113, so that when the material is clamped and positioned, the outer edge surfaces of the first pressing blocks 112 and the second pressing blocks 113 are fixed on the chuck 13, and the center top can be controlled to adjust the clamping force to be received and released, so that the positioning groove 16 is a movable groove and can be scaled according to the clamping force on the tops of the first pressing blocks 112 and the second pressing blocks 113. When the material is clamped, the first pressing block 112 and the second pressing block 113 are loosened, and the positioning groove 16 is enlarged, so that the material can be clamped more quickly and conveniently; after the material is clamped, the first pressing block 112 and the second pressing block 113 are tightened, so that the positioning groove 16 is reduced to a size suitable for the material and fixed without looseness.

As shown in fig. 5, a spindle 131 for rotating the chuck 13 is provided at the rear end of the chuck 13, the front end of the spindle 131 is fixedly connected to the chuck 13, and the rear end of the spindle 131 is connected to the motor 17. In the course of working, the material needs a plurality of positions of processing, for this needs the rotation of material when the turning, so motor 17 drives the rotation of main shaft 131 through the drive, and main shaft 131 drives the positive or negative rotation of chuck 13 again through chuck 13 fixed connection with the front end to make the material rotation on the chuck 13, carry out diversified material processing.

In addition, an electromagnetic valve 18 for adjusting the clamping tightness of the first pressing block 112 and the second pressing block 113 is arranged in parallel with the main shaft 131, a control module 181 is arranged at the front end of the electromagnetic valve 18, and the control module 181 is connected with the main shaft 131. Further, connected to the control module 181 is an integrated module 182, and the chuck 13 is disposed on a front end surface of the integrated module 182. The electromagnetic valve 18 and the spindle 131 are connected with the control module 181, on one hand, speed regulation of the spindle 131 is controlled, and on the other hand, a command signal of the electromagnetic valve 18 is transmitted and led out to the integration module 182 to drive rotation and/or clamping force regulation of the chuck 13.

As shown in fig. 6, a sliding table device 2 which can move axially and/or radially in a reciprocating manner is arranged below the main shaft 131 and the electromagnetic valve 18, the sliding table device 2 comprises a first guide rail 21 and a second guide rail 22, and the first guide rail 21 and the second guide rail 22 are arranged in different planes and are perpendicular to each other. The upper end face of the first guide rail 21 is provided with a sliding plate 211 and a sliding seat 213 which moves relative to the first guide rail 21, the sliding plate 211 is fixedly connected with the first guide rail 21, the upper end face of the sliding plate 211 is provided with two first sliding grooves 2211, and the sliding seat 213 can axially move relative to the sliding plate 211 in the first sliding grooves 2211, so that the chuck 13 is driven to move forwards and backwards. The upper end of the second guide rail 22 is provided with two second sliding grooves 2221, and the first sliding rail 21 can move radially relative to the second guide rail 22 in the second sliding grooves 2221, so as to drive the chuck 13 to move horizontally.

As shown in fig. 7 and 8, the material in this embodiment is a cylindrical material 3 with two different structures, specifically, one end of the cylindrical material 3 is provided with a recess 31, and the middle is provided with a small hole 32, and the other end is a closed plane end 33. In the process of clamping the material, the chuck 13 fixedly clamps the first clamping component 11 and the second clamping component 12 on the end part of the cylindrical material 3 provided with the concave part 31, and exposes part or all of the plane end to the chuck 13 for turning. The finished product 4 of the cylindrical material 3 is provided with a middle notch 41, the cutting depth and the width of the notch 41 are large, the notch 41 extends to one end of the clamping concave part 31 of the chuck 13, and in addition, the end surfaces of the two sides of the finished product 4 are also provided with a channel 42. Therefore, during the actual turning of the cylindrical material 3, the side end face passage 42 is turned for positioning, then the notch 41 is turned in the middle, and part or all of the turning tool can enter the first notch 14, so that the tool can be turned to or close to one end of the recess 31 to meet the enough cutting depth, and then another passage symmetrical to the side passage 42 is turned. In other embodiments, the present invention can also clamp other materials or workpieces with different structures, and also has the above-mentioned function.

The utility model also discloses an automatic production equipment of adopting above-mentioned clamping device, but the independent production processing also can install on lathe or automatic mechanical equipment, perhaps can dismantle with lathe or automatic mechanical equipment and be connected. The utility model discloses can be used to process accurate, small mechanical component, also can be according to the size of different materials, change the utility model discloses a size to be applicable to the processing of more materials. In this embodiment, an entero/gastroscopic clamp member for use in the manufacture of medical devices, as shown in figure 9.

As shown in fig. 9 and 10, the automatic production equipment comprises an automatic feeding device 5 and a feeding mechanism 51 for conveying materials and/or for reversing, conveying and guiding the materials, so that the feeding mechanism 51 has the function of automatically conveying the materials, the materials are randomly arranged and sequentially conveyed to a discharge port, manual feeding is not needed, and the labor cost is greatly saved. In addition, for some materials needing to be processed with a specified end face, the function of only conveying the materials cannot be realized, and a manual material reversing procedure needs to be added or equipment or a device with a reversing function needs to be additionally arranged. Especially for some precise and tiny materials, an operator cannot conveniently hold the materials, the end face of the material is identified, and the reversing process is easily influenced by subjective consciousness, so that the manual material reversing work efficiency is low, the error rate is high, and the material reversing machine is not suitable for reversing precise parts. For this reason, the feeding mechanism 51 also has a function of adjusting the end portions of the materials conveyed to the discharging end to the same direction, automatically recognizing or distinguishing a designated processing surface of the materials, and reversing the randomly arranged materials to the designated processing end surface. Therefore, the feeding mechanism 51 can not only automatically convey materials, but also automatically reverse the materials without manual operation, and is high in conveying efficiency and accurate in reversing.

The automatic feeding device 5 is provided with a feeding mechanism 52 for connecting the discharge port 511 of the feeding mechanism 51, so that the feeding mechanism 52 has the function of connecting the material at the discharge port 511 and accurately discharging the material, rather than directly discharging the material only by the transmission and reversing of the feeding mechanism 51. If only the feeding mechanism 51 is arranged, the reversed material is directly led out to the clamp or the processing device, and during the feeding and processing, the phenomena of material accumulation, material blockage and the like in the clamp or the processing device are easily caused due to the excessively high feeding speed, or the phenomena of material shortage and the like are caused due to the excessively high processing efficiency of the processing device and the lack of the feeding speed, so that the two are difficult to coordinate. Therefore, the feeding mechanism 52 is arranged, so that materials are accurately connected, conveyed and positioned to the clamp or the processing device, the feeding accuracy is improved, the function of controlling the feeding speed of the materials is achieved, and the materials are prevented from being accumulated or in shortage in the feeding process.

Meanwhile, the feeding mechanism 51 is provided with a leading-in member 53 for transmitting the material to the feeding mechanism 52, and one end of the leading-in member 53 is connected with the feeding mechanism 51, and the other end is connected with the feeding mechanism 52. Feed mechanism 51 is connected through leading-in component 53 with feed mechanism 52 is direct, has not only realized material transmission's function, does not be equipped with other external connecting pieces moreover, simple structure, and material transmission is swift accurate, compares in some loading attachment on the market, connects the material through manipulator or other rotation piece, and the structure is complicated, and the material loading error appears in material handling or transmission course easily. Of course, in other embodiments, the introducing member 53 may be another connecting member having a function of connecting the feeding mechanism 51 and the feeding mechanism 52.

The automatic production equipment comprises a clamping device 1, a chuck 13 for clamping materials, wherein the chuck 13 is provided with at least one group of first clamping component 11 and second clamping component 12, in this embodiment, a group of first clamping components 11 and a group of second clamping components 12, and in other embodiments, a plurality of first clamping components 11 and/or second clamping components 12 can be provided to form a plurality of clamping parts or chucks 13. The first clamping assembly 11 and the second clamping assembly 12 are provided with one or more first pressing blocks 112 and second pressing blocks 113, and the two pressing blocks are structurally the same, so that under the same applied force, the clamping force of the two pressing blocks is consistent, the clamping force is not different due to inconsistent structures of the first clamping assembly 11 or the second clamping assembly 12, and the material is not accurately positioned or damaged due to overlarge clamping force. In this embodiment, one compressing block 112 and one compressing block 113 are provided, and in other embodiments, a plurality of compressing blocks 112 and/or two compressing blocks 113 may be provided, which also have the above-mentioned functions and can make the clamping force of the clamping device larger.

In some embodiments, the first clamping assembly 11 and the second clamping assembly 12 are arranged in radial symmetry at the position of the chuck 13, and the material is clamped between the two clamping assemblies, so that the clamping force on the two sides is more uniform, in addition, the first clamping assembly 11 and the second clamping assembly 12 are provided with the first groove cut 14 at intervals, the two sides of the first groove cut 14 are planes, when the turning tool turns the material with a deeper depth, the turning tool can partially or completely enter the first groove cut 14, the material is completely cut, the sufficient cutting depth can be met, and the material does not collide with the clamping part or the chuck 1. Specifically, the first pressing block 112 and the second pressing block 113 are axially symmetrically arranged, and are radially symmetrically arranged with the first clamping assembly 11 and the second clamping assembly 12 to form a cross-shaped structure, so that a better stabilizing effect is achieved. The lower end face of the first pressing block 112 is provided with a first protruding part 1121, the upper end face of the second pressing block 113 is provided with a second protruding part 1122, and the first protruding part 1121 and the second protruding part 1122 are arranged at intervals to form a second groove notch 15. Specifically, the first protrusion 1121 and the second protrusion 1122 are adjacent to the end face for clamping the material, so that the contact area between the second groove notch 15 and the material is increased, the clamping force is larger, the situation that the width of the first groove notch 14 is large or is compensated for, the clamping force is insufficient, and the material is not accurately positioned is avoided. Therefore, enough clamping force is guaranteed, and enough cutting depth can be met under the condition of smaller turning allowance.

This automatic production equipment includes slip table device 2, is connected with frame 7, including reciprocal axial and/or radial motion's slip subassembly 23, consequently this slip subassembly 23 can drive devices such as anchor clamps or cutter multidirectional or multidirectional removal simultaneously, improves the convenience and the flexibility of device, reduces the repeated setting of some equipment, and the structure is simpler. Compared with the existing sliding table devices which only move in a single direction, the sliding table device has a single moving direction, only drives the clamp or the cutter to move in a single direction, and is not suitable for operation with a plurality of processing stations or a plurality of working procedures. Specifically, the sliding assembly is provided with a first guide rail 21 and a second guide rail 22, the second guide rail 22 is arranged on the lower portion of the first guide rail 21 and fixedly connected with the rack 7, the first guide rail 21 and the second guide rail 22 are of two relatively independent structures, the first guide rail 21 can axially move in a reciprocating mode, the second guide rail 22 can radially move in a reciprocating mode, and can also move in multiple directions simultaneously, instructions of an external controller are set according to the requirements of actual clamping or material processing, and then the sliding assembly is controlled.

Furthermore, the upper part of the sliding component 23 is also provided with a clamping device 1 for clamping materials. For some precise and tiny materials, the material clamping device is small in size, inconvenient to clamp, prone to accuracy deviation when clamping and positioning, poor in subsequent machining accuracy, and capable of clamping materials for multiple times, clamping times of the material by the clamp are required to be reduced as far as possible, on one hand, work efficiency can be improved, and on the other hand, corresponding machining is completed through one-time clamping and positioning, so that the positioning accuracy is higher.

As shown in fig. 11, the automatic production equipment includes a multi-station processing device 8 connected to the frame 7 and including a processing mechanism 81 for turning the material, in this embodiment, a worktable 83 for placing the processing mechanism is provided on the frame 7, and the worktable 83 is connected to the frame 7. Therefore, in the material processing process, the worktable 83 and the processing mechanism 81 are both in a static and passive state, and the material needs to be actively operated and fed to the processing mechanism 81 through a clamping device or a mechanical arm so as to complete processing and turning, so that the structure is simple and the product precision is high. Especially for some precise and tiny components, the processing precision requirement is high, and the process is complex. Compared with some machining equipment on the market, in the machining process, if a plurality of equipment assembly line operations are adopted, and a plurality of procedures are used for sequence conversion machining, the deviation of the cutter and program setting among different equipment is caused, the working efficiency is low, more manpower is needed, and the comprehensive cost is higher. If single-station equipment is adopted, and each procedure is completed on the equipment, the operation of each procedure needs to be adjusted and clamped again, so that the fixture is clamped and repeatedly positioned for multiple times, the size yield is low, the final finished product precision is low, and the working efficiency is low. In addition, although a plurality of machining stations are arranged, the multi-station automatic turning machine is actively operated, the sliding table is arranged on each station to move, and materials fixed on the clamping device are turned, so that the machining efficiency is improved, multiple clamping and positioning are not needed, and the product precision is improved. However, such multi-station equipment is complex in structure, needs to be provided with a plurality of sliding tables to drive a plurality of processing stations to move, and is not high in multi-direction moving and positioning accuracy.

The machining mechanism 81 in this embodiment is provided with a plurality of machining stations 82 having different turning functions, and the plurality of machining stations 82 are connected in series to a table 83. The machining of a plurality of processes is completed on the same equipment, the operation of a plurality of different processes can be completed only by clamping the clamp once, and the machining precision is high. In addition, the processing of a plurality of processes is finished on the same equipment, the assembly line operation or machine adjustment of a plurality of devices is not needed, the labor cost is greatly saved, and the working efficiency is improved.

In other embodiments, as shown in fig. 12, the feed mechanism 51 includes a diverter assembly 54 that can direct material into the intake member 53 in the same direction. The reversing assembly 54 can automatically reverse the materials without manual operation, and is high in machining efficiency and reversing accuracy. In the embodiment, the reversing component 54 reverses the materials at the discharging hole 511, so that the materials passing through the discharging hole 511 are all reversed by the reversing component 54, and the error-proofing function is achieved. More importantly, the reversing assembly 54 directly transmits the reversed materials to the guide-in member 53, and the feeding and reversing are synchronously performed without transmission and transfer of other connecting pieces, so that the reversing function in the feeding is realized, the time is effectively saved, and the efficiency is improved. Compare in other some switching-over devices on the existing market, it sets up the switching-over part in the course of working, directly drives the material through rotating parts such as being equipped with pivot or swing arm and processes to the station. Above-mentioned utility model although also can realize the material switching-over function, nevertheless, carry out the processing of holding again after holding the switching-over to the material in the course of working, and can only operate single material mostly, machining efficiency is lower, and the material is not high through rotating many times in addition, and the material is at clamping in-process positioning accuracy.

Specifically, the feeding mechanism 51 is further provided with a vibrating disk 512 for orderly arranging and conveying the materials contained in the feeding mechanism to the discharge hole 511, the inner wall of the vibrating disk 512 is a spiral track 5121 which gradually spirals up, the spiral track 5121 gradually ascends and narrows, and the spiral track 5121 finally ascends to the discharge hole 511. Specifically, the material is vibrated by the bottom of the vibrating plate 512 to ascend along the spiral track 5121, and during the ascending process, along with the narrowing of the spiral track 5121 and the screening of a series of tracks, a part of the material falls to the bottom and is vibrated again to ascend along the spiral track 5121, and the ascending material finally reaches the discharge end in a single row and single column manner. Therefore, the disordered materials are automatically, orderly and accurately conveyed, and the single materials are gradually output, so that the orderly material reversing of the feeding mechanism 51 is facilitated. The vibration plate 512 is further provided with a vibration controller 5122 for controlling the on/off, adjusting the vibration frequency, and the like. In addition, the reversing assembly 54 is arranged at the upper edge of the vibrating disk 512, specifically on the outer wall surface of the vibrating disk 512 opposite to the discharge port 511, and is adjacent to the discharge port 511 at a certain interval, and the distance between the two parts is short, which is beneficial to the close connection of the discharge and the reversing of the materials, and the efficiency is higher. In other embodiments, if the reversing assembly 54 is far from the discharge port 511 and is disposed on other end surfaces of the vibrating plate 512 or other devices, the reversing of the material may also be performed, but a connecting member or a transmission member is also required to connect the two, which makes the structure more complicated and the efficiency lower. In other embodiments, the feeding mechanism 51 may also be a pneumatic feeder, an electric vacuum feeder, or other devices with a feeding function.

The material in this embodiment is a cylindrical material 3 with different structures at two ends, specifically, a concave portion 31 is provided at one end of the cylindrical material 3, a small hole 32 is provided in the middle, and the other end is a closed plane end 33. In other embodiments, the cylindrical material 3 may be other materials with different configurations or shapes at multiple ends, and the above-mentioned effects are also achieved. Further, the finished product 4 of the cylindrical material 3 in this embodiment is provided with a middle notch 41, a smooth fillet 411 is arranged on the peripheral surface of the notch, and channels 42 are further arranged on the end surfaces of the other two sides, and the channels 42 are arranged on the two opposite side surfaces and are a first channel 421 and a second channel 422.

As shown in fig. 13, the introducing member 53 may contain a plurality of materials therein, and has a discharging passage 531 therein for transferring the materials diverted by the diverting assembly 54. In this embodiment, the discharging channel 531 is a pipe-shaped hollow structure with a width slightly wider than the diameter of the material, so that the material is transported in a single row and single column to ensure the consistency of the discharging speed and the discharging amount of the vibrating disk 512, and prevent the phenomenon of excessive material accumulation or material vacancy. Specifically, in addition, the feeding mechanism 52 is provided with a positioning assembly 55 for acquiring the material at one end of the blanking channel 531 and guiding the material out, the positioning assembly 55 is fixed on the frame 7, the discharging end 5312 of the blanking channel 531 is connected with the positioning assembly 55, and the ground is used as a reference surface, the height of the feeding end 5311 of the blanking channel 531 is higher than that of the discharging end 5312, so that the material automatically slides downwards to the discharging end 5312 according to the gravity center, and the blanking channel 521 is an inclined channel inclined towards the positioning assembly 55. In other embodiments, the feeding channel 531 may be two or more than two or be widened in width to accommodate multiple rows and multiple columns of materials, which all have the above-mentioned functions and the conveying efficiency is higher.

In other embodiments, as shown in fig. 14, the reversing assembly 54 includes a guide 541 for identifying at least one end face of the material facing, the guide 541 is disposed on the reversing assembly 54 and is vertically long, and the guide 541 is disposed at the front of the outlet 511, and has a lower end height substantially flush with the material in the outlet 511, and the guide 541 is not or partially in contact with the end face of the outlet 511 during the material reversing process. Specifically, in the discharging process, the materials are individually discharged to the discharging port 511 until any end surface of the materials contacts with the guide 541, and the materials push the guide 541 at the front part outwards under the action of force. The reversing assembly 54 further includes a bracket for mounting the guide member 541, wherein the upper end of the guide member 541 is rotatably connected to the bracket 542 and can swing within a certain range. The lower end of the guiding element 541 is provided with a bending part 5413 which can partially or completely extend into the concave part 31 or the small hole 32 of the cylindrical material 3, and the bending part 5413 and the guiding element 541 are bent towards the discharging hole 511 at an angle slightly larger than 90 degrees. During the discharging process, the cylindrical material 3 pushes out the bending portion 5413 of the guide 541, and the end of the recess 31 faces the bending portion 5413, the bending portion 5413 can catch the recess 31 when the cylindrical material 3 falls, so that the flat end 33 inclines downward and slides down to the feeding end 5311 of the discharging channel 531, thereby completing the reversing. However, if the flat end 33 faces the bending portion 5413, the bending portion 5413 cannot catch the cylindrical material 3, and the cylindrical material 3 falls into the vibration tray 512, and the direction change and the transportation cannot be completed. In addition, if the feed member 53 is filled with the material, the material overflows from the opening of the feed end 5311, and even if the end of the concave portion 31 faces the bent portion 5413, the flat end 33 collides with the cylindrical material 3 at the opening of the feed end 5311 in the process of being inclined downward, and thus falls into the vibration plate 512. Therefore, the reversing and conveying can be completed only when the guiding member 53 is not full and the end of the concave portion 31 of the cylindrical material 3 faces the bending portion 5413 during discharging, and the functions of automatically recognizing the end surface of the cylindrical material 3 and uniformly reversing the random two end surfaces of the cylindrical material 3 to the flat end 33 are provided.

As shown in fig. 15, the positioning assembly 55 is provided with a movable plate 551 moving to and fro and a connecting member 552 for getting the material to the movable plate 551. The connecting member 552 is connected to a discharge end 5311 of the discharging passage 531, and discharges the material onto the connecting member 552. Further, the other end of the connecting member 552 is communicated with the movable plate 551, the movable plate 551 guides the cylindrical material 3 in the connecting member 552 through an ascending motion, and the material is directionally moved to a certain position through a descending motion and a part of the material is guided out, so that a subsequent clamp or a subsequent processing device is convenient to clamp and position more accurately. In this embodiment, the movable plate 551 only picks up one material per reciprocation from the connecting member 552 to further control the discharge speed and coordinate with the processing speed. In other embodiments, a plurality of movable plates 551 may be provided, or a plurality of materials may be obtained from the connecting member 552, which all have the above-mentioned functions and improve the processing efficiency.

In some embodiments, the width of the first flute cut 14 is greater than that of the second flute cut 15, and the first flute cut 14 has a function of positioning materials due to the greater width, and most importantly, a part or all of the turning tool can enter the first flute cut 14 to cut deep materials. The width of the second groove cut 15 is narrower than that of the first groove cut 14, so that the clamping force is increased, the materials are not easy to loosen, and clamping is more accurate. In other embodiments, the width of the second slot 15 may be greater than or equal to the width of the first slot 13, and the second slot also has a function of clamping and positioning, and is only deficient in clamping force. In addition, the protruding cross-sectional shapes of the first protruding portion 1121 and the second protruding portion 1122 are rectangular, so in other embodiments, a part or all of the cutters can enter the second groove cut 15 to cut deep parts of the material.

In other embodiments, the first guiding rail 21 includes a sliding base 213 moving relative to the first guiding rail 21, and a sliding plate 211 for carrying the clamping device 1, wherein the sliding base 213 is disposed on the upper portion of the sliding plate 211 and detachably connected to the sliding plate 211, the clamping device 1 is disposed on the sliding base 213, and the motor 17, the solenoid valve 18, the control module 181, and the integration module 182 are disposed on the clamping device 1 and connected to the sliding base 213. Therefore, the slide plate 211 not only has the function of connecting the slide base 213, but also has the function of supporting the slide base 213 and the holding device 1, and the structure is simple and the effect is diversified. If the slide 211 is not provided, but the slide 213 is directly connected to the first rail 21, the pressure on the first rail 21 is large, and the structure is thin and easy to damage. In addition, the lower end surface of the sliding plate 211 is fixedly connected with the first guide rail 21, so that the first guide rail 21 can directly drive the sliding plate 211 and the clamping device 1 on the upper part of the sliding plate 213 to translate when translating. In other embodiments, the upper end surface of the first guide rail 21 may also be provided with a plurality of sliding plates 211, which may have a more stable structure, or the upper end of the sliding base 213 may be provided with a sliding plate, which may have a better supporting force.

As shown in fig. 16 and 17, further, the plurality of processing stations 82 are divided into a first station 821, a second station 822, a third station 823 and a fourth station 824, a blanking mechanism 84 for receiving processed materials is disposed at a lower portion of the second station 822, the blanking mechanism 84 includes a hopper 841 for receiving finished products and a storage tray 842 for receiving finished product materials 4, specifically, the hopper 841 is disposed at a lower end of the clamping device 1, after the cylindrical material 3 is processed into the finished product materials 4, the clamping device 1 releases the clamping portion according to an instruction set by an external controller, the finished product materials 4 drop into the hopper 841, the finished product materials 4 in the hopper 841 slowly roll down into the storage tray 842, if the hopper is not disposed, the finished product materials 4 directly drop into the storage tray 842, and a depression is easily formed on the surface of the finished product 4 or the finished product materials are damaged due to a large vertical distance drop height. In addition, the storage tray 842 is disposed on the surface of the rack 7, and a plurality of through holes are formed in the storage tray 842 for draining the lubricant grease or sundries of the finished product 4.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims (10)

1. A clamping device for precision parts processing, its characterized in that: including the chuck, the chuck is equipped with at least a set of first centre gripping subassembly and second centre gripping subassembly, wherein:

the first clamping assembly is provided with one or more first compression blocks and second compression blocks;

the second clamping assembly is radially and symmetrically arranged with the first clamping assembly and is provided with one or more first pressing blocks and second pressing blocks;

the lower end face of the first pressing block is provided with a first protruding part which protrudes partially; the second pressing block and the first pressing block are axially and symmetrically arranged, and the upper end face of the second pressing block is provided with a second protruding part which partially protrudes;

the first clamping assembly and the second clamping assembly are arranged at intervals to form groove notches I, and the protruding portion I and the protruding portion are arranged at intervals to form groove notches II.

2. The clamping device of claim 1, wherein: the width of the first groove cut is larger than that of the second groove cut, and part or all of the turning tools can enter the first groove cut.

3. The clamping device of claim 2, wherein: the cross section of the first groove cut is rectangular.

4. A clamping device according to claim 3, characterised in that: and a positioning groove for clamping materials is formed in the centers of the first groove notch and the second groove notch.

5. The clamping device of claim 4, wherein: the positioning groove is formed by the tops of the first pressing blocks and/or the second pressing blocks, and is a movable groove.

6. The clamping device of claim 5, wherein: the chuck rear end is equipped with the main shaft that is used for rotatory chuck, the main shaft front end with chuck fixed connection, the main shaft rear end is connected with the motor.

7. The clamping device of claim 6, wherein: and an electromagnetic valve used for adjusting the clamping tightness of the first pressing block and the second pressing block is arranged in parallel with the main shaft, and a control module is arranged at the front end of the electromagnetic valve and connected with the main shaft.

8. The clamping device of claim 7, wherein: and a sliding table device which can do reciprocating axial and/or radial motion is arranged below the main shaft and the electromagnetic valve and can drive the chuck to move in multiple directions.

9. The clamping device of claim 8, wherein: the material is a cylindrical material with two ends having different structures, a concave part is arranged on one end face of the cylindrical material, and the other end of the cylindrical material is a plane.

10. The clamping device of claim 9, wherein: the chuck is fixedly clamped at the end part, provided with the concave part, of the cylinder material, the finished product of the cylinder material is provided with a middle notch, the end faces of the two sides of the finished product of the cylinder material are provided with channels, and partial or all turning tools can enter the middle notch for turning.

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