CN108145462B - Annular workpiece clamping device using linear driving mechanism - Google Patents
Annular workpiece clamping device using linear driving mechanism Download PDFInfo
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- CN108145462B CN108145462B CN201810046844.8A CN201810046844A CN108145462B CN 108145462 B CN108145462 B CN 108145462B CN 201810046844 A CN201810046844 A CN 201810046844A CN 108145462 B CN108145462 B CN 108145462B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000000903 blocking effect Effects 0.000 claims description 11
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- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
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- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
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Abstract
The invention discloses an annular workpiece clamping device applying a linear driving mechanism, which belongs to the technical field of annular workpiece processing equipment, wherein the transverse driving force in the prior art directly depends on the power of a driving source, larger transverse driving force is needed in some occasions, only a high-power driving source can be selected, so that the use cost of a user is increased.
Description
Technical Field
The invention relates to an annular workpiece clamping device applying a linear driving mechanism, and belongs to the technical field of annular workpiece processing equipment.
Background
The conventional linear driving mechanism generally realizes linear motion through an air cylinder or magnetic steel or a linear motor or a rotating motor with a ball screw assembly, the transverse driving force of the linear driving mechanism directly depends on the power of a driving source, and in some occasions, larger transverse driving force is needed, only a high-power driving source can be selected, so that the use cost of a user is increased, the volume of the common driving source is in direct proportion to the power of the common driving source, and the large-power driving source is used, so that the equipment is larger in volume and occupies more space.
Further, in order to improve the processing efficiency of the annular workpiece, a linear driving mechanism is generally required to be arranged for clamping and blanking the annular workpiece. In order to clamp an annular workpiece effectively, in the application date 2014, 12 months 21, china patent application No. 201410798742.3 discloses an automatic centering clamp for the annular workpiece, which comprises a bracket, a motor connected with a bracket screw, a first feed screw connected with the bracket screw through a second coupler, a second feed screw parallel to the first feed screw, a first coupler connected with the left end and the right end of the first feed screw in a threaded manner, and a first guide plate and a second guide plate; the lower ends of the guide plate and the second guide plate are respectively welded with two sliding seats, the two sliding seats are respectively in threaded connection with the first feed screw and the second feed screw, a conical tubular mandrel and a long rod-shaped positioning column are welded on the first guide plate, the mandrel is big and small in left and right, and the positioning column is positioned at the center of the mandrel; the second guide plate is provided with a round hole, and the positioning column penetrates through the round hole and is parallel to the first feed screw.
When the positioning device is used, an annular workpiece is sleeved on the positioning column from one end of the positioning column, which is far away from the first guide plate, the positioning column penetrates through the round hole of the second guide plate, the motor is started, the first feed screw converts rotary motion generated by the motor into linear motion of the first guide plate and the second guide plate, the first guide plate and the second guide plate simultaneously move by equal distances, the first guide plate and the second guide plate do relative linear motion, and the mandrel on the first guide plate and the positioning column are driven to do relative motion with the second guide plate. Until the second guide plate abuts against the annular workpiece, the inner circle of the annular workpiece is clamped on the mandrel, so that the first guide plate and the second guide plate can not continuously perform relative linear motion any more, the motor is turned off, and the annular workpiece is automatically centered and clamped.
According to the technical scheme, in order to ensure that the mandrel can drive the annular workpiece to effectively move, the outer surface of the mandrel is required to be tightly attached to the inner hole of the annular workpiece, the mandrel in the shape of a circular truncated cone is required to have a sufficient length to extend into the annular workpiece, the motor is arranged to drive the screw rod assembly to reciprocate, so that the mandrel is driven to extend into the inner hole of the annular workpiece, the motor is required to provide a sufficient driving force, the motor is required to be high, the conventional motor cannot meet the requirement, and if the motor is specially customized, the manufacturing cost of the clamp is high.
And this technical scheme is although can be used to annular work piece clamp, but only is applicable to the clamp of annular work piece through the hole, can't press from both sides the clamp through the outer ring wall of annular work piece, leads to the anchor clamps application scope that is used for annular work piece narrow.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a linear driving mechanism which realizes large driving force by using a low-power driving source and has compact structure and low manufacturing cost, and further provides an annular workpiece clamping device which has low requirements on the driving source and has low manufacturing cost and wide application range and can clamp an annular workpiece through the outer annular wall of the annular workpiece.
In order to achieve the above purpose, the technical scheme of the invention is as follows: the utility model provides a straight line actuating mechanism, includes the moving part that actuating source and slope were arranged, the actuating source sets up vertical reciprocating motion's push rod, the push rod rotates with the moving part to be connected, and the contained angle of extension line is greater than or equal to 90 degrees, and vertical motion's push rod drive slope is arranged's moving part one end vertical movement, and the moving part is under the spacing of push rod, and its other end lateral shifting, and then produces transverse driving force to the piece that waits to push, moving part and push rod set up into two sets of, the symmetry sets up the both sides at the piece that waits to push.
One end of the moving part is obliquely arranged and can be abutted against a to-be-pushed part placed on the transverse slideway, a lever fulcrum is formed by an abutting point, the other end of the moving part is rotationally connected with the push rod, torque is avoided, a lever stress point is formed at the joint of the two parts, and the whole moving part is a lever arm.
The driving source drives the push rod to move downwards, and then the push rod pushes the end part of the moving piece, namely the lever moving end to move downwards. The transverse distance between the to-be-pushed piece and the push rod is gradually shortened, but the length of the moving piece is not changed, and meanwhile the push rod cannot transversely move in the opposite direction of the to-be-pushed piece or can only move a small distance, so that the other end of the moving piece can only move leftwards, and the to-be-pushed piece is pushed to transversely move. The transverse driving force of the moving part is not directly related to the vertical driving force of the driving source, and the driving source can push one end of the moving part to move downwards by smaller driving force because the moving part is equivalent to a lever arm, meanwhile, one end of the moving part connected with the push rod cannot move rightwards under the blocking of the push rod, and as long as the moving part is tough enough, the connecting part of the push rod and the driving source is stable enough, the moving part can obtain theoretically infinite transverse driving force and drive the moving part to move leftwards and transversely, so that the condition of realizing large driving force by utilizing a small-power driving source is realized. The driving source can be an air cylinder or manually driven, work of the driving source can be greatly saved through a lever structure formed by the moving part, and further, larger transverse driving force can be obtained through manual driving or a low-power driving source.
As a preferable technical measure, one end of the moving piece far away from the push rod is rotatably connected with a pushing piece which can only move transversely, and the pushing piece props against the piece to be pushed and pushes the piece to be pushed to move. The pushing piece can be sleeved on the sliding rail which is transversely arranged or placed on the transverse sliding rail. The moving part is rotationally connected with the pushing part, so that the moving part is prevented from transmitting torque and vertical force to the pushing part, the pushing part only obtains transverse driving force, the pushing part is prevented from being damaged by overlarge pressure, and the pushing part only transmits the transverse driving force to the to-be-pushed part, so that the to-be-pushed part moves transversely. Meanwhile, two ends of the moving part are rotationally connected, so that the other end of the moving part reacts rapidly in the process of downward movement of one end of the moving part, and the direction of the end is adjusted, so that larger transverse deformation force is generated, and the transverse deformation force is converted into transverse driving force of the part to be pushed. The shape of the pushing piece is matched with the shape of the piece to be pushed, so that the force of the piece to be pushed is uniform, and the local force damage of the piece to be pushed is avoided.
As the preferable technical measure, the lower surface of the movable end of the driving source is provided with a concave notch, and the upper end part of the push rod extends into the notch to be connected with the driving source in a one-way swing manner, so that the freedom degree of movement of the push rod is increased, and the push rod has more flexibility.
As the preferable technical measures, the movable piece comprises a positive movable piece and a negative movable piece, wherein the positive movable piece and the negative movable piece are used for pushing the to-be-pushed piece to move to one side and move to the other side, the upper ends of the positive movable piece and the negative movable piece are rotationally connected with the push rod, and further, the transverse driving force and the transverse moving amount of the movable piece are increased, so that the to-be-pushed piece obtains larger transverse moving amount.
As the preferential technical measure, a blocking part is arranged on the adjacent negative moving piece, and the push rod moves downwards to drive the lower end of the negative moving piece to transversely move against the blocking part, and the blocking part is closely adjacent to the negative pushing piece, so that the push rod can continuously push the left end of the negative moving piece to move downwards, the left end of the negative moving piece reversely pushes the push rod to swing towards the transverse moving direction of the positive moving piece, and further, the transverse driving force and the transverse moving amount of the moving piece are increased, so that the piece to be pushed obtains larger transverse moving amount.
The annular workpiece clamping device using the linear driving mechanism comprises a fixed seat with a hollow cavity and an elastic chuck piece, wherein the elastic chuck piece is used for abutting against the outer wall surface of the annular workpiece, the elastic chuck piece is arranged in the hollow cavity of the fixed seat, the elastic chuck piece is of a cavity structure, one end of the elastic chuck piece is of a circular truncated cone-shaped structure, the linear driving mechanism drives the elastic chuck piece to move in the fixed seat, the accommodation radius of the circular truncated cone-shaped structure is changed, and the annular workpiece is clamped.
The annular workpiece is placed into the circular truncated cone-shaped structure of the elastic chuck piece, the driving source drives the push rod to move downwards, the push rod moves downwards to drive the right end of the moving piece to move downwards, the left end of the push rod moves leftwards, the left end moving piece drives the elastic chuck piece to move leftwards, at the moment, the elastic chuck piece can bear the transverse pulling force of the moving piece, under the lever action of the linear driving mechanism, the moving piece can generate larger transverse driving force to enable the elastic chuck piece to move leftwards, the circular truncated cone-shaped structure enters the hollow cavity of the fixed seat 7, the circular truncated cone-shaped structure enters the hollow cavity of the fixed seat, the inner dimension of the hollow cavity is fixed, and the end part of the circular truncated cone-shaped structure of the elastic chuck piece generates certain radial deformation, so that the inner wall surface of the circular truncated cone-shaped structure is abutted against the outer annular wall surface of the annular workpiece, and the circular annular workpiece is clamped, and the circular truncated cone-shaped workpiece is convenient to manufacture.
As the preferable technical measure, the linear driving mechanism is erected above the elastic chuck piece through a bracket, so that vertical driving force is generated conveniently, the gravity of the push rod can be converted into a part of vertical driving force, and meanwhile, when the push rod and the moving piece form an included angle of 90 degrees, the position of the moving piece is locked, and even if a driving source does not apply work, the elastic chuck piece can be ensured to clamp the annular workpiece. The movable piece and the elastic chuck piece can be directly connected in a rotating way or can be indirectly connected through other parts, meanwhile, the movable piece can be connected in an abutting way, and the movable piece drives the elastic chuck piece to move into the hollow cavity, so that the structure is simple and practical.
As a preferable technical measure, one end of the elastic chuck piece far away from the annular workpiece is fixedly connected with a fastener, and the fastener protrudes out of the elastic chuck piece; the moving part comprises a positive moving part and a negative moving part, the positive moving part and the negative moving part are respectively connected with a positive pushing part and a negative pushing part in a rotating way, the positive pushing part is adjacent to the fastening piece, the negative pushing part is adjacent to the fixing seat, the push rod moves downwards to drive the right end of the positive moving part to move downwards, the left end of the push rod moves leftwards, the left end of the push rod drives the positive pushing part to abut against the fastening piece to drive the fastening piece and the elastic chuck to move leftwards, meanwhile, the left end of the negative moving part moves downwards, the right end of the negative moving part moves rightwards to drive the negative pushing part to abut against the fixing seat, the left end of the negative moving part reversely pushes the push rod to swing towards the transverse direction of the positive moving part, and the distance between the fastening piece and the elastic chuck to move leftwards is increased.
As the preferential technical measure, still include the unloading mechanism that is used for driving annular work piece unloading, unloading mechanism is including wearing to locate the unloading pole of collet spare, be used for driving unloading pole reciprocating motion's unloading actuating source, when the unloading is needed, the unloading pole stretches out and promotes annular work piece and drop, accomplishes the unloading, simple structure is practical.
As the preferable technical measure, the blanking driving source is an air cylinder, one end of a piston rod of the blanking driving source is connected with the blanking rod, the other end of the piston rod is provided with an extension rod extending out of the air cylinder body, a positioning seat is arranged on the adjacent extension rod, the positioning seat is in threaded connection with a positioning column for limiting the moving position of the extension rod, and the positioning column is provided with scales so as to observe the extending distance of the positioning column conveniently.
Compared with the prior art, the invention has the following beneficial effects:
one end of the moving part is obliquely arranged and can be abutted against a to-be-pushed part placed on the transverse slideway, a lever fulcrum is formed by an abutting point, the other end of the moving part is rotationally connected with the push rod, torque is avoided, a lever stress point is formed at the joint of the two parts, and the whole moving part is a lever arm.
The driving source drives the push rod to move downwards, and then the push rod pushes the end part of the moving piece, namely the lever moving end to move downwards. The transverse distance between the to-be-pushed piece and the push rod is gradually shortened, but the length of the moving piece is not changed, and meanwhile the push rod cannot transversely move in the opposite direction of the to-be-pushed piece or can only move a small distance, so that the other end of the moving piece can only move leftwards, and the to-be-pushed piece is pushed to transversely move. The transverse driving force of the moving part is not directly related to the vertical driving force of the driving source, and the driving source can push one end of the moving part to move downwards by smaller driving force because the moving part is equivalent to a lever arm, meanwhile, one end of the moving part connected with the push rod cannot move rightwards under the blocking of the push rod, and as long as the moving part is tough enough, the connecting part of the push rod and the driving source is stable enough, the moving part can obtain theoretically infinite transverse driving force and drive the moving part to move leftwards and transversely, so that the condition of realizing large driving force by utilizing a small-power driving source is realized.
The annular workpiece is placed into the circular truncated cone-shaped structure of the elastic chuck piece, the driving source drives the push rod to move downwards, the push rod moves downwards to drive the right end of the moving piece to move downwards, the left end of the push rod moves leftwards, the left end moving piece drives the elastic chuck piece to move leftwards, at the moment, the elastic chuck piece can bear the transverse pulling force of the moving piece, under the lever action of the linear driving mechanism, the moving piece can generate larger transverse driving force to enable the elastic chuck piece to move leftwards, the circular truncated cone-shaped structure enters the hollow cavity of the fixed seat 7, the circular truncated cone-shaped structure enters the hollow cavity of the fixed seat, the inner dimension of the hollow cavity is fixed, and the end part of the circular truncated cone-shaped structure of the elastic chuck piece generates certain radial deformation, so that the inner wall surface of the circular truncated cone-shaped structure is abutted against the outer annular wall surface of the annular workpiece, and the annular workpiece is clamped.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a schematic view of the back structure of the present invention.
Fig. 4 is a top view of the present invention.
Fig. 5 is a front view of the present invention.
Reference numerals illustrate: the device comprises a 1-driving source, an 11-moving end, a 12-support, a 2-moving part, a 21-positive moving part, a 22-negative moving part, a 3-push rod, a 4-push part, a 41-positive push part, a 42-negative push part, a 5-fastener, a 51-first fastener, a 52-second fastener, a 6-elastic chuck piece, a 61-pull rod, a 7-fixing seat, an 8-blanking mechanism, an 81-blanking driving source, an 82-blanking rod, an 83-positioning column, an 84-positioning seat, an 85-piston rod, a 9-annular workpiece, an A-lever fulcrum and a B-lever moving end.
Description of the embodiments
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
On the contrary, the invention is intended to cover any alternatives, modifications, equivalents, and variations as may be included within the spirit and scope of the invention as defined by the appended claims. Further, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. The present invention will be fully understood by those skilled in the art without the details described herein.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The terms "vertical," "lateral," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only.
The to-be-pushed piece or the annular workpiece is arranged on the right side, and the linear driving mechanism is arranged on the upper left side of the to-be-pushed piece or the annular workpiece, so that the left-right movement change of the scheme is provided, and if the to-be-pushed piece is arranged on the left side of the to-be-pushed piece, the linear driving mechanism is arranged on the upper right side of the to-be-pushed piece, and the left-right movement change of the scheme is opposite. Further, the linear driving mechanism can also be placed below the to-be-pushed piece, or the to-be-pushed piece is placed vertically, and the linear driving mechanism can also be placed horizontally, so that the working principle is similar to that of the above scheme, and the description is omitted here.
As shown in fig. 1-2, the linear driving mechanism comprises a driving source 1 and a moving part 2 which is obliquely arranged, wherein the driving source 1 is provided with a push rod 3 which vertically reciprocates, the push rod 3 is rotationally connected with the moving part 2, and the included angle between extension lines of the push rod 3 and the moving part is larger than or equal to 90 degrees. One end of the moving part 2 is obliquely arranged and can be abutted against a to-be-pushed part placed on the transverse slideway, a lever fulcrum A is formed by an abutting point, the other end of the moving part is rotationally connected with the push rod 3, torque is avoided, a lever moving end B is formed at the connecting position, and the whole moving part 2 is a lever arm.
The moving part 2 and the push rod 3 are arranged in two groups and symmetrically arranged on two sides of the part to be pushed. The driving source 1 drives the push rod 3 to move downwards, and then the push rod 3 pushes the end part of the moving piece 2, namely the lever moving end B to move downwards, and the position height of the moving piece 2 is lowered due to the rotary connection between the push rod 3 and the lever moving end B, so that no torque is generated. The transverse distance between the to-be-pushed piece and the push rod 3 is gradually shortened, but the length of the moving piece 2 is not changed, and meanwhile, the push rod 3 cannot move transversely in the opposite direction of the to-be-pushed piece or can only move a small distance, so that the other end of the moving piece 2 can only move leftwards, and the to-be-pushed piece is pushed to move transversely. The transverse driving force of the moving part 2 is not directly related to the vertical driving force of the driving source 1, and the driving source 1 can push one end of the moving part 2 to move downwards by a small driving force because the moving part 2 is equivalent to a lever arm, meanwhile, one end of the moving part 2 connected with the push rod 3 cannot move rightwards under the blocking of the push rod 3, and as long as the moving part 2 is tough enough, the connecting part of the push rod 3 and the driving source 1 is stable enough, the moving part 2 obtains theoretically infinite transverse driving force and drives the moving part 2 to move leftwards and transversely, so that the condition of realizing large driving force by using the low-power driving source 1 is realized.
The invention provides an embodiment of a pusher for directly abutting against a member to be pushed: one end of the moving part 2 far away from the push rod 3 is rotatably connected with a pushing part 4 capable of moving transversely, a lever fulcrum A is formed at a connecting point of the moving part 2 and the pushing part, and the pushing part 4 props against the to-be-pushed part and pushes the to-be-pushed part to move. The pushing member 4 may be sleeved on a transversely arranged slide rail or placed on a transverse slide rail. The moving part 2 is rotationally connected with the pushing part 4, so that the moving part 2 is prevented from transmitting torque and vertical force to the pushing part 4, the pushing part 4 only obtains transverse driving force, the pushing part 4 is prevented from being damaged by overlarge pressure, and the pushing part 4 only transmits the transverse driving force to the to-be-pushed part, so that the to-be-pushed part transversely moves. Meanwhile, two ends of the moving part 2 are rotationally connected, so that in the process that one end of the moving part 2 moves downwards, the other end of the moving part reacts quickly, the direction of the end is adjusted, and accordingly larger transverse deformation force is generated, and the transverse deformation force is converted into transverse driving force of the part to be pushed. The shape of the pushing piece 4 is matched with the shape of the piece to be pushed, so that the force of the piece to be pushed is uniform, and the local force damage of the piece to be pushed is avoided.
The present invention produces a double traversing embodiment: as shown in fig. 3-5, a concave notch is formed on the lower surface of the moving end 11 of the driving source 1, and the upper end of the push rod 3 extends into the notch to be connected with the driving source 1 in a one-way swing manner. The movable member 2 comprises a positive movable member 21 and a negative movable member 22, wherein the positive movable member 21 and the negative movable member 22 are used for pushing the member to be pushed to move to one side, and the upper ends of the positive movable member 21 and the negative movable member 22 are rotatably connected with the push rod 3. The adjacent negative moving piece 22 is provided with a blocking part, the push rod 3 moves downwards to drive the lower end of the negative moving piece 22 to transversely move against the blocking part, and the blocking part is close to the negative pushing piece, so that the negative moving piece can only move rightwards by a small amount, and the push rod continues to push the left end of the negative moving piece to move downwards, so that the left end of the negative moving piece 22 reversely pushes the push rod 3 to swing towards the transverse moving direction of the positive moving piece 21, and further, the transverse driving force and the transverse moving amount of the moving piece 2 are increased, and the to-be-pushed piece obtains a larger transverse moving amount.
The annular workpiece clamping device using the linear driving mechanism comprises a fixed seat 7 with a hollow cavity, an elastic chuck piece 6 for abutting against the outer wall surface of an annular workpiece 9, and a blanking mechanism 8 for driving the annular workpiece 9 to be blanked. The discharging mechanism 8 comprises a discharging rod 82 penetrating through the elastic chuck piece 6 and a discharging driving source 81 used for driving the discharging rod 82 to reciprocate. The linear driving mechanism is erected above the elastic chuck piece 6 through a bracket 12, the moving piece 2 is connected with the elastic chuck piece 6, and the moving piece 2 drives the elastic chuck piece 6 to move into the hollow cavity.
The elastic chuck piece 6 is arranged in the hollow cavity of the fixed seat 7, the elastic chuck piece 6 is of a cavity structure, one end of the elastic chuck piece is of a circular truncated cone-shaped structure, the linear driving mechanism drives the elastic chuck piece 6 to move in the fixed seat 7, the containing radius of the circular truncated cone-shaped structure is changed, and the annular workpiece 9 is clamped. The hollow cavity of fixing base 7 with round platform column structure matched with one end sets up round platform column cavity, round platform column structure sets up a plurality of deformation grooves of being convenient for deformation along the axis direction for round platform column structure has certain deformability, and then makes collet piece 6 have elasticity.
An embodiment of the annular workpiece clamping device is convenient to install: the elastic chuck member 6 is connected with a cylindrical pull rod 61, and the length of the pull rod 61 can be flexibly selected according to the requirement. One end of the pull rod 61 far away from the annular workpiece 9 is fixedly connected with the fastener 5, the fastener 5 comprises a first fastener 51 and a second fastener 52, the first fastener 51 and the second fastener 52 are sequentially connected with the end of the pull rod in a screwed mode to form an interlocking structure, the fastener 5 is prevented from falling off from the end of the pull rod 61, and the first fastener 51 and the second fastener 52 can be nuts, so that purchasing is facilitated. The first fastening member 51 protrudes from the pull rod 61, so that the pushing member can abut against the first fastening member. The moving member 2 comprises a positive moving member 21 and a negative moving member 22, the positive moving member 21 and the negative moving member 22 are respectively connected with a positive pushing member 41 and a negative pushing member 42 in a rotating way, the positive pushing member 41 is adjacent to the fastening member 5, the negative pushing member 42 is adjacent to the fixing seat 7, the upper edge of the fixing seat 7 protrudes out of the negative pushing member 42 to form a blocking part of the negative pushing member 42, and the lateral movement position of the negative pushing member 42 is limited.
The push rod 3 moves downwards to drive the right end of the positive moving part 21 to move downwards, the left end of the push rod moves leftwards, the left end of the push rod drives the positive pushing part 41 to abut against the fastening piece 5, the fastening piece 5 and the elastic chuck piece 6 are driven to move leftwards, meanwhile, the left end of the negative moving part 22 moves downwards, the right end of the push rod moves rightwards to drive the negative pushing part 42 to abut against the fixed seat 7, the left end of the negative moving part 22 reversely pushes the push rod 3 to swing towards the transverse moving direction of the positive moving part 21, and the distance between the fastening piece 5 and the elastic chuck piece 6 to move leftwards is increased.
The blanking driving source 81 is a cylinder, one end of a piston rod 85 of the blanking driving source is connected with the blanking rod 82, the other end of the piston rod is provided with an extension rod extending out of the cylinder body, a positioning seat 84 is arranged on the adjacent extension rod, the positioning seat 84 is in threaded connection with a positioning column 83 for limiting the moving position of the extension rod, and the positioning column 83 is provided with scales so as to observe the extending distance of the positioning column 83 conveniently.
The working principle of the invention is as follows: the annular workpiece 9 is placed in the round table-shaped structure of the elastic chuck piece 6, the driving source 1 drives the push rod 3 to move downwards, the push rod 3 moves downwards to drive the right end of the positive moving piece 21 to move downwards, the left end of the push rod 3 moves leftwards, the left end of the push rod drives the positive pushing piece 41 to abut against the fastening piece 5 to drive the fastening piece 5 and the elastic chuck piece 6 to move leftwards, meanwhile, the left end of the negative moving piece 22 moves downwards, the right end of the negative pushing piece 42 abuts against the fixed seat 7, and the negative moving piece only moves a small amount rightwards due to the fact that the fixed seat is close to the negative pushing piece, at the moment, the push rod continues to push the left end of the negative moving piece to move downwards, and therefore the left end of the negative moving piece 22 reversely pushes the push rod 3 to swing towards the transverse moving direction of the positive moving piece 21, and the distance of the fastening piece 5 and the pull rod 61 to move leftwards is increased. At this time, the elastic chuck member 6 can bear the larger transverse pulling force of the pull rod 61, the elastic chuck member 6 moves leftwards, the circular truncated cone-shaped structure enters the hollow cavity of the fixed seat 7, the inner dimension of the hollow cavity is fixed, the end part of the circular truncated cone-shaped structure of the elastic chuck member 6 generates certain radial deformation, and then the inner wall surface of the circular truncated cone-shaped structure is abutted against the outer annular wall surface of the annular workpiece 9, so that the annular workpiece 9 is clamped.
When the blanking is needed, the driving source 1 drives one end of the moving part to move upwards, the locking state of the elastic chuck piece 6 is released, the elastic chuck piece 6 is driven by elastic deformation force of the round table-shaped structure, the elastic chuck piece 6 is reset, the blanking driving source 81 drives the blanking rod 82 to move rightwards, the annular workpiece 9 is pushed out, and the blanking of the annular workpiece 9 is completed. The invention can clamp and discharge the annular workpiece 9, has the advantages of convenient structure manufacture, wide application range and practical proposal.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above, and it will be apparent to those skilled in the art that various modifications and improvements can be made therein without departing from the scope of the invention.
Claims (3)
1. The utility model provides an annular workpiece clamping device using linear driving mechanism, including actuating source (1) and tilting movable part (2) of arranging, characterized by, actuating source (1) sets up vertical reciprocating motion's push rod (3), push rod (3) and movable part (2) rotate to be connected, the contained angle of both extension lines is greater than or equal to 90 degrees, tilting movable part (2) one end vertical movement of vertical movable push rod (3) drive, movable part (2) under the spacing of push rod (3), its other end lateral shifting, and then treat the movable part and produce transverse driving force, movable part (2) and push rod (3) set up into two sets of, the symmetry sets up in waiting the both sides of movable part, one end rotation connection that keeps away from push rod (3) of movable part (2) can only lateral shifting's impeller (4), the impeller (4) conflict waiting to push the movable part and promote waiting to push the movable part, the lower surface of actuating source (1) is seted up concave notch, push rod (3) upper end stretches into in the notch with actuating source (1) spacing, the movable part (2) is connected, be used for waiting to push rod (2) one side (22) to rotate to push the movable part (22), waiting to push rod (22) to move on the side of movable part (21), one side is connected to the movable part is moved to the side (22) is moved to the side of the movable part is moved, and is moved to the side (22), the push rod (3) moves downwards to drive the lower end of the negative moving part (22) to move transversely to abut against the blocking part, the left end of the negative moving part (22) reversely pushes the push rod (3) to swing towards the transverse moving direction of the positive moving part (21), the annular workpiece clamping device comprises a fixed seat (7) with a hollow cavity and an elastic chuck part (6) for abutting against the annular workpiece (9), the elastic chuck part (6) is arranged in the hollow cavity of the fixed seat (7), the elastic chuck part (6) is of a cavity structure, one end of the elastic chuck part (6) is of a round table-shaped structure, a linear driving mechanism drives the elastic chuck part (6) to move in the fixed seat (7) to change the accommodating radius of the round table-shaped structure, the annular workpiece (9) is clamped, the linear driving mechanism is erected above the elastic chuck part (6) through a bracket (12), the moving part (2) is connected with the elastic chuck part (6), the moving part (2) drives the elastic chuck part (6) to move towards the hollow cavity, and one end of the elastic chuck part (6) far away from the annular workpiece (9) is fixedly connected with a fastener (5), and the fastener (5) protrudes out of the elastic chuck part (6). The moving part (2) comprises a positive moving part (21) and a negative moving part (22), the positive moving part (21) and the negative moving part (22) are respectively connected with a positive pushing part (41) and a negative pushing part (42) in a rotating way, the positive pushing part (41) is adjacent to the fastening piece (5), the negative pushing part (42) is adjacent to the fixing seat (7), the push rod (3) moves downwards to drive the right end of the positive moving part (21) to move downwards, the left end of the push rod moves leftwards, and then the left end of the push rod drives the positive pushing part (41) to abut against the fastening piece (5) to drive the fastening piece (5) and the elastic chuck piece (6) to move leftwards; meanwhile, the left end of the negative moving part (22) moves downwards, the right end of the negative moving part moves rightwards to drive the negative pushing part (42) to abut against the fixed seat (7), the left end of the negative moving part (22) reversely pushes the push rod (3) to swing towards the transverse moving direction of the positive moving part (21), and the distance of leftward movement of the fastening piece (5) and the elastic chuck piece (6) is increased.
2. The annular workpiece clamping device using the linear driving mechanism according to claim 1, further comprising a blanking mechanism (8) for driving the annular workpiece (9) to be blanked, wherein the blanking mechanism (8) comprises a blanking rod (82) penetrating through the elastic chuck piece (6), and a blanking driving source (81) for driving the blanking rod (82) to reciprocate.
3. The annular workpiece clamping device using the linear driving mechanism according to claim 2, wherein the blanking driving source (81) is an air cylinder, one end of a piston rod (85) of the blanking driving source is connected with the blanking rod (82), an extension rod extending out of the air cylinder body is arranged at the other end of the blanking driving source, a positioning seat (84) is arranged on the adjacent extension rod, the positioning seat (84) is in threaded connection with a positioning column (83) for limiting the moving position of the extension rod, and scales are arranged on the positioning column (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046844.8A CN108145462B (en) | 2018-01-18 | 2018-01-18 | Annular workpiece clamping device using linear driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046844.8A CN108145462B (en) | 2018-01-18 | 2018-01-18 | Annular workpiece clamping device using linear driving mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN108145462A CN108145462A (en) | 2018-06-12 |
| CN108145462B true CN108145462B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810046844.8A Active CN108145462B (en) | 2018-01-18 | 2018-01-18 | Annular workpiece clamping device using linear driving mechanism |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203649935U (en) * | 2013-11-22 | 2014-06-18 | 重庆盾铭电磁阀有限公司 | Rotary table clamping mechanism |
| CN105215722A (en) * | 2015-10-30 | 2016-01-06 | 重庆市璧山县振昌汽车配件有限公司 | The positioning clamping device of axle |
| CN106694911A (en) * | 2016-12-30 | 2017-05-24 | 黄石玖久精密数控设备制造有限公司 | Machined main shaft |
| CN207840710U (en) * | 2018-01-18 | 2018-09-11 | 浙江盛业科技有限公司 | A kind of straight line driving mechanism and apply its annular workpieces clamping device |
-
2018
- 2018-01-18 CN CN201810046844.8A patent/CN108145462B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203649935U (en) * | 2013-11-22 | 2014-06-18 | 重庆盾铭电磁阀有限公司 | Rotary table clamping mechanism |
| CN105215722A (en) * | 2015-10-30 | 2016-01-06 | 重庆市璧山县振昌汽车配件有限公司 | The positioning clamping device of axle |
| CN106694911A (en) * | 2016-12-30 | 2017-05-24 | 黄石玖久精密数控设备制造有限公司 | Machined main shaft |
| CN207840710U (en) * | 2018-01-18 | 2018-09-11 | 浙江盛业科技有限公司 | A kind of straight line driving mechanism and apply its annular workpieces clamping device |
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| Publication number | Publication date |
|---|---|
| CN108145462A (en) | 2018-06-12 |
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