CN118927040B - Cylindrical product fixed-point area machining clamp for centerless grinder based on three-point contact - Google Patents
Cylindrical product fixed-point area machining clamp for centerless grinder based on three-point contact Download PDFInfo
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- CN118927040B CN118927040B CN202411204917.3A CN202411204917A CN118927040B CN 118927040 B CN118927040 B CN 118927040B CN 202411204917 A CN202411204917 A CN 202411204917A CN 118927040 B CN118927040 B CN 118927040B
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- 238000003754 machining Methods 0.000 title claims description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 238000000227 grinding Methods 0.000 claims description 27
- 238000000034 method Methods 0.000 description 13
- 238000003801 milling Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 206010044565 Tremor Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/307—Means for supporting work
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- Jigs For Machine Tools (AREA)
Abstract
本发明涉及磨床夹具技术领域，尤其涉及一种基于三点接触无心磨床用柱状产品定点区域加工夹具，包括磨床操作台和柱状工件，所述磨床操作台的表面固定安装有防护箱，所述防护箱的内部转动连接有旋转件，所述旋转件为筒状结构且两端开设有圆孔，所述防护箱的内部设置有驱动旋转件进行转动的驱动机构，所述旋转件的表面位于两端圆孔的位置转动贯穿有连接筒，所述连接筒的端部固定安装有连接头。本发明通过设置连接筒，且连接筒的两端均开口，可以使柱状工件直接贯穿连接筒，使待加工的位置放置在夹杆固定的附近，从而在加工的过程中可以减少工件振动的情况，适应不同长度的工件进行使用。
The present invention relates to the technical field of grinder fixtures, and in particular to a fixed-point area processing fixture for columnar products based on a three-point contact centerless grinder, comprising a grinder operating table and a columnar workpiece, a protective box fixedly mounted on the surface of the grinder operating table, a rotating member rotatably connected inside the protective box, the rotating member is a cylindrical structure with round holes at both ends, a driving mechanism for driving the rotating member to rotate is disposed inside the protective box, a connecting tube is rotatably penetrated through the surface of the rotating member at the positions of the round holes at both ends, and a connector is fixedly mounted on the end of the connecting tube. The present invention provides a connecting tube, and both ends of the connecting tube are open, so that the columnar workpiece can directly penetrate the connecting tube, and the position to be processed is placed near the fixed clamp rod, thereby reducing the vibration of the workpiece during the processing and adapting to the use of workpieces of different lengths.
Description
Technical Field
The invention relates to the technical field of grinding machine clamps, in particular to a columnar product fixed-point area machining clamp for a centerless grinding machine based on three-point contact.
Background
The grinding machine is a machine tool for grinding a surface of a workpiece using a grinding tool. Most grinding machines use grinding wheels rotating at high speed for grinding, and few grinding machines such as oilstones, abrasive belts and other grinding tools and free abrasive materials, such as honing machines, superfinishing machines, abrasive belt grinding machines, grinding machines and polishing machines, and the grinding machines need to fix workpieces by triangular clamping jaws during processing.
The traditional grinding machine fixture generally directly utilizes the triangle jack catch, the tip of columnar workpiece is facing to the chuck of triangle jack catch, then utilize three jack catch to carry out the centre gripping to the lateral wall of columnar workpiece and fix, but many columnar workpieces possess longer length, and the fixed of triangle jack catch can only fix its tip, consequently when keeping away from fixed position's region to columnar product when carrying out processing operation, because columnar product self possesses toughness, and processing position is longer with fixed position distance again, leads to the course of working to take place great tremble easily, thereby lead to processing difficulty, the phenomenon that the precision is relatively poor.
Disclosure of Invention
The invention aims to provide a columnar product fixed-point area processing clamp based on a three-point contact centerless grinder, which solves the problems that in the prior art, a plurality of columnar workpieces have longer lengths, and the ends of the columnar workpieces can only be fixed by fixing triangular clamping jaws, so that when the columnar products are far away from an area of a fixed position for processing operation, the columnar products have toughness, and the distance between the processing position and the fixed position is longer, so that large tremble easily occurs in the processing process, and the processing is difficult and the accuracy is poor.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a cylindrical product fixed point area adds clamping apparatus based on three-point contact centerless grinder, includes grinding machine operation panel and columnar work piece, the fixed surface of grinding machine operation panel installs the protective housing, the inside of protective housing rotates and is connected with the rotating member, the round hole has been seted up for tubular structure and both ends to the rotating member, the inside of protective housing is provided with the actuating mechanism that drives the rotating member and carry out pivoted, the surface of rotating member is located the position rotation of both ends round hole and runs through there is the connecting cylinder, the tip fixed mounting of connecting cylinder has the connector, columnar work piece runs through connecting cylinder and connector, the surface slip of connector runs through there are three clamp bars, the surface cover of connecting cylinder is equipped with the expansion ring, the lateral wall fixed mounting of connector has three second electric cylinder, three electric cylinder's output port all with expansion ring fixed connection, the surface rotation of expansion ring is connected with three connecting rod, three the connecting rod respectively with three clamp bar rotate and be provided with the auxiliary mechanism that supplementary columnar work piece moved and be used for carrying out the link gear that promotes the columnar work piece.
Preferably, the auxiliary mechanism comprises a fixed ring, three first electric cylinders are fixedly arranged on the side wall of the fixed ring, connecting rings are sleeved on the surface of the connecting cylinder, the output end ports of the three first electric cylinders are fixedly connected with the connecting rings, three connecting rods are fixedly arranged on the side wall of the connecting rings, three through holes are formed in the surface of the connecting cylinder, sliding blocks are slidably connected to the surfaces of the through holes, inclined grooves are formed in the tops of the sliding blocks, and clamping wheels are uniformly connected in a rotating mode on the ports inside the sliding blocks.
Preferably, one end of the connecting rod, which is close to the sliding block, is rotationally connected with a roller, a second spring is fixedly arranged at the top of the sliding block, and one end of the second spring, which is far away from the sliding block, is fixedly connected with the connecting cylinder.
Preferably, three of said connecting rods each slide through the movable ring.
Preferably, the linkage mechanism comprises two third electric cylinders, the two third electric cylinders are respectively and fixedly arranged on two sides of the movable ring, clamping blocks are fixedly arranged at output end ports of the two third electric cylinders, limiting rods are fixedly arranged on one sides of the clamping blocks, which are far away from each other, the limiting rods penetrate through the movable ring in a sliding mode, V-shaped grooves are formed in one sides of the clamping blocks, which are close to each other, of the two limiting rods, and through holes are formed in the surface of the connecting cylinder so as to enable the clamping blocks to extend into the connecting cylinder to clamp cylindrical workpieces.
Preferably, three guide rods are fixedly arranged on the surface of the connector, and the three clamping rods respectively penetrate through the three guide rods in a sliding mode.
Preferably, the driving mechanism comprises a motor, the motor is fixedly arranged in the protective box, a driving gear is fixedly arranged at an output shaft port of the motor, a driven gear is fixedly arranged on the surface of the rotating piece, and the driving gear is meshed with the driven gear.
Preferably, the bottom of the clamping rod is slidably inserted with a push rod, the positions of the bottom of the clamping rod, which are positioned on two sides of the push rod, are rotationally connected with movable rods, teeth are arranged on two sides of the push rod, and the two movable rods are respectively meshed with two sides of the push rod.
Preferably, the movable rod comprises a clamping plate and cylindrical gears, the cylindrical gears are welded at the top of the clamping plate and are rotationally connected with the clamping rod, and the cylindrical gears in the movable rods at two sides are respectively meshed with two sides of the ejector rod.
Preferably, a first spring is fixedly arranged at the top of the ejector rod, and one end, far away from the ejector rod, of the first spring is fixedly connected with the clamping rod.
The invention has at least the following beneficial effects:
through setting up the connecting cylinder, and the both ends of connecting cylinder all open-ended, can make the direct through-connection of column work piece section of thick bamboo, make the position of waiting to process place near the clamp lever is fixed to can reduce the condition of work piece vibration in the in-process of processing, for the mode that directly adopts the triangle jack catch among the prior art, this mode can adapt to the work piece of different length and use, and stability is higher.
Through setting up the expansion ring, can remove on the surface of connecting cylinder under the effect of second electronic cylinder to the drive clamping lever removes, realizes the centre gripping to the work piece, and mechanical structure is simple, and the fault rate is low, adopts the mode that the triangle jack catch needs manual screwing in for prior art, and this mode is more convenient operation, and the removal of expansion ring not only can play the purpose of fixed work piece in addition, can also mutually support with clamp splice and third electronic cylinder, thereby realizes the removal to the work piece, makes the workman need not manual to the work piece remove, and this removal belongs to horizontal migration moreover, can not make the work piece take place to rotate, thereby more convenient processing operations.
Through setting up first electronic cylinder, go up the go-between, connecting rod and slider isotructure, when needs slide in order to reach the processing to other positions to the work piece, can make first electronic cylinder drive go-between and the connecting rod removes, thereby extrude the slider, make three slider carry out the centre gripping to the work piece, and the slider utilizes the pinch roller to realize the centre gripping, consequently, can not influence the work piece and remove along the direction of rotation of pinch roller, and then can play the direction function to the removal of work piece, and when the one end to the work piece is supported tightly, also can utilize the connecting rod to extrude the slider to the inside of connecting cylinder, then insert the work piece and establish the inside of connecting cylinder, make the one end of work piece by the slider butt, and then the convenience carries out processing operation to the tip of work piece, make the work piece can not take place to remove in the course of working, therefore the slider not only has the function of centre gripping work piece, can also play the function of supporting tightly to the work piece tip according to different service environment.
Through all being provided with ejector pin and movable rod at the tip of three clamping lever to when making things convenient for the clamping lever to work piece centre gripping, utilize ejector pin and two movable rods to realize three-point contact, directly adopt the mode of triangle jack catch in the relative prior art, only jack catch itself contacts with the work piece, and stability is relatively poor, and this mode can strengthen the centre gripping effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a side view of FIG. 1 in accordance with the present invention;
FIG. 3 is a cross-sectional view of the protective housing of the present invention;
FIG. 4 is a cross-sectional view of a rotary member of the present invention;
FIG. 5 is a schematic view of a connecting rod structure according to the present invention;
FIG. 6 is a schematic diagram of a movable ring structure according to the present invention;
FIG. 7 is a cross-sectional view of a connecting cylinder of the present invention;
FIG. 8 is a schematic view of a slider structure according to the present invention;
FIG. 9 is a cross-sectional view of a slider of the present invention;
FIG. 10 is a cross-sectional view of a clamping bar of the present invention;
Fig. 11 is a cross-sectional view of a movable ring according to the present invention.
The grinding machine comprises a grinding machine operating table 1, a protection box 2, a cylindrical workpiece 3, a rotary part 4, a rotary part 5, a driven gear 6, a driving gear 7, a motor 8, a connecting cylinder 9, a connector 10, a movable ring 11, a connecting rod 12, a clamping rod 13, a fixed ring 14, a first electric cylinder 15, a connecting ring 16, a connecting rod 17, a second electric cylinder 18, a clamping block 19, a third electric cylinder 20, a limiting rod 21, a movable rod 22, a first spring 23, a push rod 24, a roller 25, a sliding block 26, a clamping wheel 27, a second spring 28, a chute 29, a through hole 30, a through hole 31 and a guide rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like.
In describing embodiments of the present invention, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Referring to figures 1-11, a columnar product fixed point area processing clamp for a centerless grinding machine based on three-point contact comprises a grinding machine operation table 1 and a columnar workpiece 3, wherein a protective box 2 is fixedly arranged on the surface of the grinding machine operation table 1, a rotating part 4 is rotationally connected in the protective box 2, the rotating part 4 is of a cylindrical structure, round holes are formed in two ends of the rotating part, a driving mechanism for driving the rotating part 4 to rotate is arranged in the protective box 2, a connecting cylinder 8 is rotationally penetrated through the surface of the rotating part 4 at the round holes at the two ends, a connecting head 9 is fixedly arranged at the end part of the connecting cylinder 8, the columnar workpiece 3 penetrates through the connecting cylinder 8 and the connecting head 9, three clamping rods 12 are penetrated through the surface of the connecting head 9 in a sliding manner, a movable ring 10 is sleeved on the surface of the connecting cylinder 8, three second electric cylinders 17 are fixedly arranged on the side walls of the connecting head 9, output end ports of the three second electric cylinders 17 are fixedly connected with the movable ring 10, the surface of the movable ring 10 is rotationally connected with three connecting rods 11, the three connecting rods 11 are respectively rotationally connected with three clamping rods 12, the surface of the connecting cylinder 8 is provided with an auxiliary mechanism for assisting the movement of the columnar workpiece 3 and a linkage mechanism for pushing the columnar workpiece 3, the columnar workpiece 3 is inserted into a round hole of the rotating member 4, the columnar workpiece 3 is fixed according to the length of the columnar workpiece 3 and the position to be processed, when the columnar workpiece is fixed, the second electric cylinder 17 is directly started, the second electric cylinder 17 drives the movable ring 10 to move towards the direction away from the connecting head 9, so that the connecting rods 11 are driven to move, the other ends of the connecting rods 11 are rotationally connected with the clamping rods 12, and the clamping rods 12 are in sliding connection with the connecting head 9, so that the movement of the connecting rods 11 can enable the clamping rods 12 to slide, the three clamping rods 12 synchronously move towards the circle center position of the connecting head 9, therefore, the columnar workpiece 3 is clamped and fixed, and after the columnar workpiece 3 is fixed, the driving mechanism can be used for driving the whole rotating piece 4 to rotate in the protective box 2, so that the columnar workpiece 3 is driven to synchronously rotate, and further, the processing is conveniently realized.
Further, the auxiliary mechanism comprises a fixed ring 13, three first electric cylinders 14 are fixedly arranged on the side wall of the fixed ring 13, a connecting ring 15 is sleeved on the surface of a connecting cylinder 8, output end ports of the three first electric cylinders 14 are fixedly connected with the connecting ring 15, three connecting rods 16 are fixedly arranged on the side wall of the connecting ring 15, three through holes 29 are formed in the surface of the connecting cylinder 8, sliding blocks 25 are slidably connected to the surfaces of the three through holes 29, inclined grooves 28 are formed in the tops of the sliding blocks 25, clamping wheels 26 are uniformly connected to the ports of the sliding blocks 25, the milling cutters are required to be used in the process of machining the cylindrical workpieces 3, the working states of the milling cutters and the grinding machines are matched with each other, the first milling cutter is fixed, the cylindrical workpieces 3 rotate, machining is achieved, the second milling cutters are fixed, and machining can be achieved. For the second machining mode, after the cylindrical workpiece 3 finishes machining one position, the cylindrical workpiece 3 needs to be moved, so that the other position of the cylindrical workpiece 3 is moved to the machining position of the milling cutter, at this time, the cylindrical workpiece 3 needs to be moved, in order to ensure that the milling cutter is machined and kept on the same straight line with the last machining, the cylindrical workpiece 3 needs to be horizontally moved and cannot be rotated, at this time, if the fastening of the cylindrical workpiece 3 is directly released, the cylindrical workpiece 3 is manually moved, the machining position and the previous machining position are not on the same straight line, so that the fixed point area machining cannot be realized, an auxiliary mechanism is arranged, the first electric cylinder 14 is started, the first electric cylinder 14 drives the connecting ring 15 to move towards the direction of the connecting head 9, so that three connecting rods 16 are driven to synchronously move, the three connecting rods 16 extrude the inclined grooves 28 of the three sliding blocks 25, the three inclined grooves 28 extrude the three sliding blocks 25 to slide towards the inside of the connecting cylinder 8, the three sliding blocks 25 extrude the columnar workpiece 3, the clamping wheels 26 are arranged at the end parts of the sliding blocks 25, the sliding blocks 25 are contacted with the columnar workpiece 3 by the clamping wheels 26, at the moment, the second electric cylinder 17 is started, the second electric cylinder 17 drives the movable ring 10 to move towards the direction close to the connecting head 9, the connecting rod 11 drives the clamping rod 12 to move towards the direction far away from the columnar workpiece 3, the clamping rod 12 is used for clamping the columnar workpiece 3, the columnar workpiece 3 is supported by only three groups of clamping wheels 26 at the moment, the arrangement of each group of clamping wheels 26 is consistent with the length direction of the columnar workpiece 3, therefore, the columnar workpiece 3 can be directly pushed, and can move along the rotation direction of the clamping wheels 26, when the cylindrical workpiece 3 is moved, the workpiece is clamped and fixed again by the clamping rod 12, so that the machining is convenient, the traditional three-jaw chuck can realize the clamping and fixing of the workpiece with a shorter size, and the workpiece is abutted on the chuck, so that the workpiece cannot be moved even if the end part of the workpiece is machined, in the application, the slider 25 that sets up not only can play supplementary centre gripping work piece, makes the work piece can carry out the purpose of removal direction, can directly make slider 25 move towards the centre of a circle position of connecting cylinder 8 to shorter work piece moreover, so the work piece is inserted inside the connecting cylinder 8 and is pressed from both sides tightly fixedly after utilizing clamp lever 12, also can utilize slider 25 to play the purpose of butt work piece tip, improves the functionality.
Further, the connecting rod 16 is close to the one end of slider 25 and rotates and be connected with gyro wheel 24, the top fixed mounting of slider 25 has second spring 27, the one end that second spring 27 kept away from slider 25 and connecting cylinder 8 fixed connection, through set up second spring 27 on slider 25, make slider 25 when not needing to use, can be in the position of keeping away from connecting cylinder 8 centre of a circle under the effect of second spring 27, thereby can not be at the in-process of inserting columnar work piece 3, make columnar work piece 3 receive the jam of slider 25, therefore the use of slider 25 need cooperate the extrusion of connecting rod 16, through setting up gyro wheel 24, can make connecting rod 16 and chute 28 contact with it by using gyro wheel 24 when making contact, and then utilize the rotation of gyro wheel 24 can reduce at the in-process of promotion, the frictional force.
Further, the three connecting rods 16 all penetrate through the movable ring 10 in a sliding manner, the connecting rods 16 serve the purpose of pushing the sliding blocks 25, and meanwhile, the movable ring 10 can be limited, so that the movable ring 10 can only move along the length direction of the connecting rods 16, and the movable ring 10 can work more stably.
Further, the linkage mechanism comprises two third electric cylinders 19, the two third electric cylinders 19 are respectively and fixedly arranged at two sides of the movable ring 10, clamping blocks 18 are fixedly arranged at the output end ports of the two third electric cylinders 19, limiting rods 20 are fixedly arranged at one sides of the two clamping blocks 18, which are far away from each other, the limiting rods 20 slide through the movable ring 10, V-shaped grooves are formed at one sides of the two clamping blocks 18, which are close to each other, the surfaces of the connecting cylinders 8 are provided with through holes 30, the clamping blocks 18 can extend into the connecting cylinders 8 to clamp the columnar workpieces 3, when the columnar workpieces 3 are required to be machined, the sliding blocks 25 and the clamping wheels 26 in the auxiliary mechanism are firstly utilized to clamp the workpieces towards the outside of the rotary piece 4, then the third electric cylinders 19 are started, the third electric cylinders 19 drive the clamping blocks 18 to clamp the workpieces, then the second electric cylinders 17 are started, the second electric cylinders 17 drive the movable ring 10 to move towards the connecting heads 9, the clamping rods 12 are directly separated from the clamping blocks, the clamping blocks 18 can be stretched into the connecting cylinders 8 to clamp the columnar workpieces 3, the columnar workpieces 3 when the clamping blocks are required to be machined, the columnar workpieces are driven by the electric cylinders to move towards the connecting rings 10, and the clamping wheels 26 are driven to move towards the outside of the connecting rings, and the clamping rings 10 are driven to move synchronously, and the clamping wheels are driven to move the clamping rings 18, and the workpiece is further driven to move towards the connecting rings, and the clamping rings are driven to move the clamping rings 10 to move the workpiece 18, and the clamping rings are driven to move the clamping rings and the workpiece 18 to move along the direction is the direction and the largest distance is the clamping direction and the clamping direction is the clamping direction and the workpiece is the clamping direction and far upwards and far away from the clamping direction, the movable ring 10 can be moved towards the connector 9 when the workpiece is pushed towards the inside of the rotating part 4, then the workpiece is clamped by the clamping block 18, and then the movable ring 10 is moved towards the direction away from the connector 9 after clamping, so that the workpiece is driven to move towards the inside of the rotating part 4, and the movable ring 10 is matched with the clamping block 18 in the linkage mechanism to automatically realize the movement of the workpiece in two directions.
Further, the surface of the connector 9 is fixedly provided with three guide rods 31, the three clamping rods 12 respectively penetrate through the three guide rods 31 in a sliding manner, the clamping rods 12 slide through the movement of the connecting rods 11, and the connecting rods 11 have pulling force or pushing force on the clamping rods 12, so that the moving channel of the clamping rods 12 can be enhanced through the guide rods 31, and the moving stability is enhanced.
Further, actuating mechanism includes motor 7, motor 7 fixed mounting is in the inside of protective housing 2, motor 7's output shaft port fixed mounting has driving gear 6, the fixed surface of rotating member 4 installs driven gear 5, driving gear 6 and driven gear 5 meshing, post work piece 3 is by centre gripping fixed back, sometimes need rotate it to conveniently process it, can realize the rotation to whole rotating member 4 through setting up actuating mechanism, only need start motor 7 in the concrete operation, motor 7 drives driving gear 6 and rotates, driving gear 6 drives driven gear 5 and rotates, driven gear 5 drives rotating member 4 and rotates, thereby drive post work piece 3 rotates.
Further, the ejector rod 23 is slidably inserted at the bottom end of each clamping rod 12, the movable rods 21 are rotatably connected to the positions, located at two sides of the ejector rod 23, of the bottom end of each clamping rod 12, teeth are arranged at two sides of the ejector rod 23, the two movable rods 21 are respectively meshed with two sides of the ejector rod 23, the three clamping rods 12 clamp and fix a workpiece by means of the end portions, the ejector rod 23 and the movable rods 21 are arranged at the bottom end of each clamping rod 12, when the clamping rods 12 are close to the workpiece, the end portions of the ejector rods 23 are in contact with the workpiece at first, the ejector rods 23 move along with the continued movement of the clamping rods 12, so that the movable rods 21 at two sides are driven to rotate until the movable rods 21 at two sides are in contact with the workpiece, at the moment, the ejector rods 23 and the two movable rods 21 are in a relatively balanced state, and shake along with the movement of the clamping rods 12, the bottom end portions of each clamping rod 12 are in contact with the ejector rod 23 and the two movable rods 21, so that each clamping rod 12 is in contact with the workpiece at three points, and the clamping stability of the workpiece is enhanced.
Further, the movable rod 21 comprises a clamping plate and a cylindrical gear, the cylindrical gear is welded at the top of the clamping plate, the cylindrical gear is rotatably connected with the clamping rod 12, and the cylindrical gears in the movable rods 21 on two sides are respectively meshed with two sides of the ejector rod 23.
Further, the top fixed mounting of ejector pin 23 has first spring 22, and the one end and the clamping bar 12 fixed connection of ejector pin 23 are kept away from to first spring 22, through the first spring 22 that sets up, when can making ejector pin 23 no longer extrude the work piece, ejector pin 23 can be ejecting by first spring 22 to be in open state for two movable rods 21, make things convenient for the centre gripping reinforcing practicality next time.
In summary, in the use, insert cylindrical work piece 3 to the round hole inside of rotating member 4, fix it according to the length of cylindrical work piece 3 and the position that needs to process, in the fixed time, directly start second electronic cylinder 17, second electronic cylinder 17 drives the direction removal that the expansion link 10 kept away from connector 9, thereby drive connecting rod 11 activity, the other end and the clamp lever 12 of connecting rod 11 rotate and connect, and be sliding connection between clamp lever 12 and the connector 9, therefore the activity of connecting rod 11 can make clamp lever 12 slide, three clamp levers 12 all move towards the centre of a circle position of connector 9 each other in step, thereby press from both sides tightly fixedly cylindrical work piece 3, cylindrical work piece 3 can utilize actuating mechanism to drive whole rotating member 4 to rotate in guard box 2 after being fixed, thereby drive cylindrical work piece 3 synchronous rotation, and then conveniently realize processing, generally all need utilize milling cutter in the in-process of processing cylindrical work piece 3, there are two kinds of operation modes, first kind is the milling cutter is motionless, cylindrical work piece 3 rotates, thereby realize processing, second kind work piece 3 is motionless, also can realize processing milling cutter. For the second machining mode, after the cylindrical workpiece 3 finishes machining one position, the cylindrical workpiece 3 needs to be moved, so that the other position of the cylindrical workpiece 3 is moved to the machining position of the milling cutter, at this time, the cylindrical workpiece 3 needs to be moved, in order to ensure that the milling cutter is machined and kept on the same straight line with the last machining, the cylindrical workpiece 3 needs to be horizontally moved and cannot be rotated, at this time, if the fastening of the cylindrical workpiece 3 is directly released, the cylindrical workpiece 3 is manually moved, the machining position and the previous machining position are not on the same straight line, so that the fixed point area machining cannot be realized, an auxiliary mechanism is arranged, the first electric cylinder 14 is started, the first electric cylinder 14 drives the connecting ring 15 to move towards the direction of the connecting head 9, so that three connecting rods 16 are driven to synchronously move, the three connecting rods 16 extrude the inclined grooves 28 of the three sliding blocks 25, the three inclined grooves 28 extrude the three sliding blocks 25 to slide towards the inside of the connecting cylinder 8, the three sliding blocks 25 extrude the columnar workpiece 3, the clamping wheels 26 are arranged at the end parts of the sliding blocks 25, the sliding blocks 25 are contacted with the columnar workpiece 3 by the clamping wheels 26, at the moment, the second electric cylinder 17 is started, the second electric cylinder 17 drives the movable ring 10 to move towards the direction close to the connecting head 9, the connecting rod 11 drives the clamping rod 12 to move towards the direction far away from the columnar workpiece 3, the clamping rod 12 is used for clamping the columnar workpiece 3, the columnar workpiece 3 is supported by only three groups of clamping wheels 26 at the moment, the arrangement of each group of clamping wheels 26 is consistent with the length direction of the columnar workpiece 3, therefore, the columnar workpiece 3 can be directly pushed, and can move along the rotation direction of the clamping wheels 26, when the cylindrical workpiece 3 is moved, the workpiece is clamped and fixed again by the clamping rod 12, so that the workpiece is convenient to process, the traditional three-jaw chuck can realize clamping and fixing of the workpiece with a shorter size, and the workpiece is abutted on the chuck, so that the workpiece cannot be moved even if the end part of the workpiece is processed, in the application, the sliding block 25 can be used for auxiliary clamping and guiding the workpiece, and the sliding block 25 can be directly moved towards the center position of the connecting cylinder 8 for the shorter workpiece, so that the workpiece can be abutted on the end part of the workpiece by the sliding block 25 after being inserted into the connecting cylinder 8 and clamped and fixed by the clamping rod 12, the functionality is improved, and the second spring 27 is arranged on the sliding block 25, so that the sliding block 25 can be used when the use is not needed, the cylindrical workpiece 3 can be kept away from the center of the connecting cylinder 8 under the action of the second spring 27, so that the cylindrical workpiece 3 is not blocked by the sliding block 25 in the process of inserting the cylindrical workpiece 3, therefore, the sliding block 25 needs to be matched with the extrusion of the connecting rod 16 in use, the rolling wheel 24 is used for contacting the connecting rod 16 with the chute 28 through the arrangement of the rolling wheel 24, the rolling of the rolling wheel 24 can be reduced in the pushing process, the friction force is reduced, the connecting rod 16 plays the role of pushing the sliding block 25, meanwhile, the purpose of limiting the movable ring 10 can be achieved, the movable ring 10 can only move along the length direction of the connecting rod 16, the work of the movable ring 10 is more stable, the cylindrical workpiece 3 needs to be moved when being processed, when the workpiece needs to be moved towards the outside of the rotating member 4, the sliding block 25 and the clamping wheel 26 in the auxiliary mechanism are used for clamping at first, then a third electric cylinder 19 is started, the third electric cylinder 19 drives a clamping block 18 to clamp the workpiece, then a second electric cylinder 17 is started, the second electric cylinder 17 drives a movable ring 10 to move towards the connector 9, when the movable ring 10 moves towards the connector 9, the clamping rod 12 is directly separated from clamping the workpiece, meanwhile, the clamping block 18 is driven to synchronously move, the clamping block 18 clamps the workpiece, the workpiece is clamped by a clamping wheel 26 at the moment, the clamping wheel 26 is a guiding function of horizontally moving the workpiece, therefore, the movement of the movable ring 10 can directly drive the workpiece to move, after the movable ring 10 moves to the maximum distance, the third electric cylinder 19 drives the clamping block 18 to separate from clamping the workpiece, then the second electric cylinder 17 drives the movable ring 10 to move towards the direction away from the connector 9, and the movement is repeated again, the movable ring 10 drives the workpiece to move outwards, the workpiece can be moved repeatedly, manual pushing of workers is not needed, the workpiece can be directly used for longer and heavier workpieces, the labor intensity of workers is reduced, when the workpiece is required to be pushed towards the inside of the rotating piece 4, the movable ring 10 can be moved towards the connector 9, then the workpiece is clamped by the clamping block 18, and then the movable ring 10 is moved towards the direction far away from the connector 9 after clamping, so that the workpiece is driven to move towards the inside of the rotating piece 4, the movable ring 10 can automatically move towards two directions by matching with the clamping block 18 in the linkage mechanism, the clamping rod 12 slides through the movement of the connecting rod 11, the connecting rod 11 has pulling force or pushing force on the clamping rod 12, the moving channel area of the clamping rod 12 can be enhanced through the guide rod 31, thereby the stability when the reinforcing removes, the columnar work piece 3 is fixed by the centre gripping after, sometimes need rotate it, thereby it is convenient to process it, can realize the rotation to whole rotating member 4 through setting up actuating mechanism, only need start motor 7 in the concrete operation, motor 7 drives driving gear 6 and rotates, driving gear 6 drives driven gear 5 and rotates, driven gear 5 drives rotating member 4 and rotate, thereby drive columnar work piece 3 and rotate, three clamp rod 12 is fixed the centre gripping that utilizes the tip to the work piece, through setting up ejector pin 23 and movable rod 21 in the bottom of every clamp rod 12, when clamp rod 12 is close to the work piece, firstly, the tip and the work piece contact of ejector pin 23, along with the continued movement of clamp rod 12, ejector pin 23 can take place to move, thereby drive the movable rod 21 of both sides and rotate, until the movable rod 21 of both sides all contacts with the work piece, at this moment, and along with the removal three of clamp rod 12 all can not take place, and then the bottom of every clamp rod 12 all is ejector pin 23 and two movable rod 21 contacts, realize that every clamp rod 12 is the ejector pin 23 and two movable rod 21 carries out the contact with the work piece, realize that every clamp rod 12 is the tip is in order to press the expansion spring 23, can be in the second time, the stability is realized, the clamp rod is in the condition is realized that the clamp rod is in the second place under the spring is in the condition of the expansion, and the clamp rod is in the condition is pressed to the second place, and the clamp rod is more than the work piece is convenient to the 13, and can be pressed and is in the second place, and the clamp 23 is in the condition to the condition is in the place is in the spring and 23.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a cylindrical product fixed point area adds clamping apparatus for centerless grinder based on three-point contact, its characterized in that includes grinding machine operation panel (1) and columnar work piece (3), the fixed surface of grinding machine operation panel (1) installs protective housing (2), the inside rotation of protective housing (2) is connected with rotating member (4), rotating member (4) is tubular structure and both ends have seted up the round hole, the inside of protective housing (2) is provided with the actuating mechanism that drives rotating member (4) and rotate, the surface of rotating member (4) is located the position rotation of both ends round hole and runs through there is connecting cylinder (8), connecting cylinder (8) tip fixed mounting has connector (9), columnar work piece (3) run through connecting cylinder (8) and connector (9), the surface slip of connector (9) runs through there are three clamp lever (12), the surface cover of connecting cylinder (8) is equipped with ring (10), the lateral wall fixed mounting of connector (9) has three second electric cylinder (17), three electric cylinder (17) output port and three connecting rod expansion link (11) are all connected with three connecting rod expansion link (11) respectively, the surface of the connecting cylinder (8) is provided with an auxiliary mechanism for assisting the cylindrical workpiece (3) to move and a linkage mechanism for pushing the cylindrical workpiece (3), the auxiliary mechanism comprises a fixed ring (13), three first electric cylinders (14) are fixedly arranged on the side wall of the fixed ring (13), the surface of the connecting cylinder (8) is sleeved with a connecting ring (15), the output end ports of the first electric cylinders (14) are fixedly connected with the connecting ring (15), three connecting rods (16) are fixedly arranged on the side wall of the connecting ring (15), three through holes (29) are formed in the surface of the connecting cylinder (8), three through holes (29) are slidably connected with sliding blocks (25) on the surface of the through holes (29), inclined grooves (28) are formed in the top of the sliding blocks (25), the ports in the connecting cylinder (8) are uniformly and rotatably connected with clamping wheels (26), one ends of the connecting rods (16) close to the sliding blocks (25) are rotatably connected with idler wheels (24), the tops of the sliding blocks (25) are fixedly provided with springs (27), the tops of the sliding blocks (25) are fixedly arranged on the tops of the sliding blocks (25), the sliding blocks (27) are far away from the first ends of the sliding cylinders (8), the two third electric cylinders (19) are respectively fixedly installed on two sides of the movable ring (10), the two output end ports of the third electric cylinders (19) are respectively fixedly installed with clamping blocks (18), the two clamping blocks (18) are respectively fixedly installed on one sides of the movable ring (10) far away from each other, the limiting rods (20) are slidably inserted into the movable ring (10), the two V-shaped grooves are respectively formed in one sides of the clamping blocks (18) close to each other, through holes (30) are formed in the surfaces of the connecting cylinders (8) so as to achieve the state that the clamping blocks (18) can extend into the connecting cylinders (8) to clamp cylindrical workpieces (3), three guide rods (31) are fixedly installed on the surfaces of the connecting heads (9), the three guide rods (12) are respectively slidably inserted into the three guide rods (31), ejector rods (23) are slidably inserted into the bottom ends of the clamping rods (12), movable rods (21) are respectively rotatably connected to the positions of two sides of the ejector rods (23), and teeth (21) are respectively meshed with the two sides of the ejector rods (23).
2. The cylindrical product fixed-point area machining clamp for the three-point contact-based centerless grinding machine is characterized in that the driving mechanism comprises a motor (7), the motor (7) is fixedly installed inside a protective box (2), a driving gear (6) is fixedly installed at an output shaft port of the motor (7), a driven gear (5) is fixedly installed on the surface of the rotating piece (4), and the driving gear (6) is meshed with the driven gear (5).
3. The cylindrical product fixed point area machining fixture for the three-point contact-based centerless grinding machine according to claim 1, wherein the movable rod (21) comprises a clamping plate and a cylindrical gear, the cylindrical gear is welded on the top of the clamping plate, the cylindrical gear is rotationally connected with the clamping rod (12), and the cylindrical gears in the movable rods (21) on two sides are respectively meshed with two sides of the ejector rod (23).
4. The cylindrical product fixed point area machining clamp for the three-point contact-based centerless grinding machine, according to claim 1, is characterized in that a first spring (22) is fixedly arranged at the top of the ejector rod (23), and one end, far away from the ejector rod (23), of the first spring (22) is fixedly connected with the clamping rod (12).
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| CN202411204917.3A CN118927040B (en) | 2024-08-30 | 2024-08-30 | Cylindrical product fixed-point area machining clamp for centerless grinder based on three-point contact |
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| CN215699818U (en) * | 2021-03-08 | 2022-02-01 | 苏州恩贝斯克机械股份有限公司 | Clamping device for workpiece cutting |
| CN217474862U (en) * | 2022-02-24 | 2022-09-23 | 太仓海创机械有限公司 | Lathe is used in processing of major axis class work piece |
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| US5583647A (en) * | 1993-05-05 | 1996-12-10 | Ohio Electronic Engravers, Inc. | Cylinder support apparatus and method for use in an engraver |
| CN207873660U (en) * | 2017-12-28 | 2018-09-18 | 资阳晨风机电有限公司 | A kind of pipe fitting turning attachment |
| CN111673617B (en) * | 2020-07-13 | 2021-12-07 | 江苏万基传动科技有限公司 | Grinding machine floating claw chuck |
| CN117428592A (en) * | 2023-10-20 | 2024-01-23 | 上海力睿精密金属海安有限公司 | Centerless grinding machine with function of preventing workpiece from being damaged |
| CN117773611B (en) * | 2024-02-28 | 2024-06-04 | 泉州立亿德智能科技有限公司 | Quick clamping device and clamping method for machine tool machining |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN215699818U (en) * | 2021-03-08 | 2022-02-01 | 苏州恩贝斯克机械股份有限公司 | Clamping device for workpiece cutting |
| CN217474862U (en) * | 2022-02-24 | 2022-09-23 | 太仓海创机械有限公司 | Lathe is used in processing of major axis class work piece |
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