CN111975684A - Clamp for repeatedly positioning workpieces - Google Patents
Clamp for repeatedly positioning workpieces Download PDFInfo
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- CN111975684A CN111975684A CN202010907553.0A CN202010907553A CN111975684A CN 111975684 A CN111975684 A CN 111975684A CN 202010907553 A CN202010907553 A CN 202010907553A CN 111975684 A CN111975684 A CN 111975684A
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- sliding
- fixedly connected
- rod
- plate
- rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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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
Abstract
The invention relates to the technical field of workpiece processing, in particular to a clamp for repeatedly positioning a workpiece, which comprises a supporting clamp plate, a transmission rear mechanism, an upper clamping fixing plate, a lateral correcting mechanism, a plurality of adjusting lateral support rods, a plurality of upper symmetrical clamping mechanisms and an upper clamping mechanism, wherein the transmission rear mechanism is fixedly connected to the rear end of the supporting clamp plate, the upper clamping fixing plate is fixedly connected to the front end of the transmission rear mechanism, the lateral correcting mechanism is fixedly connected into the supporting clamp plate, the plurality of adjusting lateral support rods are arranged and are all slidably connected onto the adjusting lateral support rods, the upper symmetrical clamping mechanisms are fixedly connected onto the supporting clamp plate, the upper symmetrical clamping mechanisms are rotatably connected onto the transmission rear mechanism, and the plurality of upper clamping mechanisms are rotatably connected into the transmission rear mechanism, and the upper end clamping mechanisms are all connected inside the upper clamping fixing plate in a sliding manner.
Description
Technical Field
The invention relates to the technical field of workpiece processing, in particular to a fixture for repeatedly positioning a workpiece.
Background
The device for fixing the object to be processed to make it occupy the correct position for receiving construction or detection is also called fixture. In a broad sense, any device used to quickly, conveniently and safely mount a workpiece at any stage in a process may be referred to as a jig. Such as welding jigs, inspection jigs, assembly jigs, machine tool jigs, and the like. Among them, the machine tool clamp is the most common, and is often referred to as a clamp for short. When a workpiece is machined on a machine tool, in order to enable the surface of the workpiece to meet the technical requirements such as size, geometric shape and mutual position accuracy with other surfaces specified in a drawing, the workpiece needs to be installed and clamped firmly before machining, and a clamp generally comprises a positioning element (determining the correct position of the workpiece in the clamp), a clamping device, a tool setting guide element (determining the relative position of a tool and the workpiece or guiding the direction of the tool), an indexing device (enabling the workpiece to complete machining of a plurality of stations in one-time installation, including a rotary indexing device and a linear movement indexing device), a connecting element, a clamp body and the like.
Disclosure of Invention
The invention aims to provide a clamp for repeatedly positioning a workpiece, which has the advantage of positioning the workpiece in more ways.
The purpose of the invention is realized by the following technical scheme:
a clamp for repeatedly positioning a workpiece comprises a supporting clamp plate, a transmission rear-mounted mechanism, an upper clamping fixed plate, a lateral correcting mechanism, an adjusting lateral support rod, an upper symmetrical clamping mechanism and an upper clamping mechanism, wherein the transmission rear-mounted mechanism is fixedly connected to the rear end of the supporting clamp plate;
the supporting clamping plate comprises a supporting connecting bottom plate, a mounting groove, a rotating rod and driven gears, the mounting groove is formed in the upper end of the supporting connecting bottom plate, the rotating rod is fixedly connected to the supporting connecting bottom plate, and the driven gears are all rotatably connected to the rotating rod;
the transmission rear mechanism comprises a rear storage box, a fixed connecting rod, a lower end connecting rod, telescopic connecting rods, an upper end rotating connecting head and a sliding rod mounting groove, the fixed connecting rod is fixedly connected in the rear storage box, a plurality of lower end connecting rods are rotatably connected to the fixed connecting rod, the telescopic connecting rods are respectively and fixedly connected to the upper ends of the lower end connecting rods, a plurality of upper end rotating connecting heads are respectively and fixedly connected to the upper ends of the telescopic connecting rods, and the sliding rod mounting groove is formed in the rear storage box;
the upper clamping fixing plate comprises a connecting plate and an upper clamping mounting groove, the upper clamping mounting groove is formed in the connecting plate, and the connecting plate is fixedly connected to the rear storage box;
the lateral correcting mechanism comprises a driving motor, a rotating lead screw, lower end sliding plates, clamping supporting plates, adjusting motors, transmission adjusting chain wheels, transmission chain plates and sliding rails, wherein the driving motor is fixedly connected to a supporting and connecting bottom plate;
the adjusting side supporting rod comprises a sliding connecting rod, a sliding connecting column, an electric push rod and an adjusting conical head, the sliding connecting column is fixedly connected to the sliding connecting rod, the electric push rod is fixedly connected to the sliding connecting rod, the adjusting conical head is fixedly connected to the electric push rod, the two transmission chain plates are respectively and fixedly connected with a plurality of sliding connecting columns, and the two sliding tracks are respectively and slidably connected with a plurality of sliding connecting columns;
the upper end symmetrical clamping mechanism comprises a sliding middle plate, supporting tables, shaping fixed sliding plates, sliding connection air rods, connection thin rods, lower connection racks, rebound springs, a connection swivel base and upper connection racks, a plurality of supporting tables are fixedly connected in a supporting connection base plate, a plurality of shaping fixed sliding plates are respectively and slidably connected in a plurality of supporting tables, a plurality of sliding connection air rods are respectively and fixedly connected with a plurality of supporting tables, a plurality of sliding connection air rods are respectively communicated with a plurality of supporting tables, a plurality of connection thin rods are respectively and slidably connected in a plurality of sliding connection air rods, the rear ends of a plurality of connection thin rods are respectively and fixedly connected with the lower connection racks, a plurality of lower connection racks and a plurality of upper connection racks are respectively and slidably connected in the sliding middle plate, a plurality of rebound springs are respectively and fixedly connected in a post storage box, and a plurality of rebound springs are respectively and fixedly connected on a plurality of lower connection racks, the connecting rotary bases are respectively and fixedly connected to the upper connecting racks, and the lower end connecting rods are respectively and rotatably connected into the connecting rotary bases;
upper end clamping mechanism including push rod, slip gas pole, go up the grip block, can dismantle limiting plate and fixed gas post, slip gas pole fixed connection slides in on push rod, slide gas pole sliding connection slides in last grip block, can dismantle limiting plate sliding connection in last grip block, the equal fixed connection of a plurality of fixed gas posts is at the lower extreme that can dismantle limiting plate, a plurality of push rods rotate respectively to be connected on a plurality of upper ends rotate the link, the equal sliding connection of a plurality of push rods is in the slide bar mounting groove.
The fixture for repeatedly positioning the workpiece has the beneficial effects that: the invention relates to a fixture for repeatedly positioning workpieces, which is characterized in that a workpiece to be processed is placed on a circular placing table consisting of a plurality of shaping fixed sliding plates, the plurality of shaping fixed sliding plates slide downwards due to different contact areas of irregular shapes of the workpiece to the plurality of shaping fixed sliding plates, air in a plurality of supporting tables is compressed, air pressure difference is generated between the air pressure difference and the outside, a plurality of connecting thin rods are extruded under the action of the air pressure difference to push a plurality of lower connecting racks to move, a plurality of rebound springs are compressed, a plurality of driven gears rotate to drive a plurality of upper connecting racks engaged with the driven gears to move, a plurality of connecting rotary seats move along with the connecting thin rods to drive a plurality of lower end connecting rods to rotate, a plurality of telescopic connecting rods and a plurality of upper end rotating connecting heads rotate along with the connecting rods to push a plurality of push-out rods to push a plurality of sliding-in air rods into a plurality of upper clamping plates, a plurality of detachable limiting plates move downwards, a plurality of fixed air columns act on the upper, the two clamping support plates can be driven to move inwards simultaneously by starting the driving motor, the two transmission chain plates drive the adjusting side support rods to move by starting the two adjusting motors, the side positions of the workpiece are adjusted, and the machining position can be adjusted conveniently or the measurement of the workpiece is more convenient.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and "upright", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly or indirectly connected through an intermediate medium, and may be a communication between two members. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, in the description of the present invention, the meaning of "a plurality", and "a plurality" is two or more unless otherwise specified.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the construction of the support splint of the present invention;
FIG. 3 is a schematic structural view of the drive rear mechanism of the present invention;
FIG. 4 is a schematic structural view of an upper clamping fixing plate according to the present invention;
FIG. 5 is a schematic view of the construction of the lateral correction mechanism of the present invention;
FIG. 6 is a schematic view of the adjustable lateral strut of the present invention;
FIG. 7 is a schematic structural view of an upper end symmetrical clamping mechanism of the present invention;
fig. 8 is a schematic structural view of the upper end clamping mechanism of the present invention.
In the figure: a supporting splint 1; the supporting and connecting bottom plate 1-1, the mounting groove 1-2 and the rotating rod 1-3; 1-4 of a driven gear; a transmission rear mechanism 2; a rear storage box 2-1, a fixed connecting rod 2-2, a lower end connecting rod 2-3, a telescopic connecting rod 2-4 and an upper end rotating connecting head 2-5; the slide bar mounting grooves are 2-6; an upper clamping fixing plate 3; a connecting plate 3-1; an upper clamping mounting groove 3-2; a lateral correction mechanism 4; a driving motor 4-1, a rotating screw rod 4-2, a lower end sliding plate 4-3, a clamping support plate 4-4, an adjusting motor 4-5, a transmission adjusting chain wheel 4-6 and a transmission chain plate 4-7; 4-8 of a sliding track; adjusting the lateral support rod 5; a sliding connecting rod 5-1, a sliding connecting column 5-2 and an electric push rod 5-3; 5-4 of adjusting the conical head; the upper end is symmetrical with the clamping mechanism 6; the device comprises a sliding middle plate 6-1, a supporting table 6-2, a shaping fixed sliding plate 6-3, a sliding connection air rod 6-4, a connection thin rod 6-5, a lower connection rack 6-6 and a rebound spring 6-7; connecting the rotary seat 6-8; the upper connecting rack is 6-9; an upper end clamping mechanism 7; a push-out rod 7-1, a slide-in air rod 7-2, an upper clamping plate 7-3 and a detachable limiting plate 7-4; and 7-5 of a fixed gas column.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The first embodiment is as follows:
the following describes the present embodiment with reference to fig. 1 to 8, and a fixture for workpiece repeated positioning includes a supporting splint 1, a transmission post mechanism 2, an upper clamping fixing plate 3, a lateral correcting mechanism 4, an adjusting lateral support rod 5, an upper symmetrical clamping mechanism 6 and an upper clamping mechanism 7, and is characterized in that: the device comprises a transmission rear mechanism 2, an upper clamping fixing plate 3, a lateral correction mechanism 4, a plurality of adjusting lateral supporting rods 5, a plurality of upper symmetrical clamping mechanisms 6, a plurality of upper symmetrical clamping mechanisms 7, a plurality of upper clamping mechanisms 7 and an upper clamping fixing plate 3, wherein the transmission rear mechanism 2 is fixedly connected to the rear end of a supporting splint 1;
a workpiece to be processed is placed on a circular placing table consisting of a plurality of shaping fixed sliding plates 6-3, the plurality of shaping fixed sliding plates 6-3 slide downwards due to different contact areas of irregular shapes of the workpiece to the plurality of shaping fixed sliding plates 6-3 to compress air in a plurality of supporting tables 6-2, an air pressure difference is generated between the air pressure difference and the outside, a plurality of connecting thin rods 6-5 are extruded out under the action of the air pressure difference to push a plurality of lower connecting racks 6-6 to move, a plurality of rebound springs 6-7 are compressed, a plurality of driven gears 1-4 rotate to drive a plurality of upper connecting racks 6-9 meshed with the driven gears to move, a plurality of connecting rotary seats 6-8 move along with the connecting rods 2-3 at the lower ends to rotate, a plurality of telescopic connecting rods 2-4 and a plurality of upper rotating connecting heads 2-5 rotate along with the connecting rods, the plurality of push-out rods 7-1 are pushed, the plurality of sliding-in air rods 7-2 are pushed into the plurality of upper clamping plates 7-3, the plurality of detachable limiting plates 7-4 move downwards, the plurality of fixed air columns 7-5 act on the upper end face of the workpiece to complete positioning, the driving motor 4-1 is started, the rotating screw rod 4-2 pushes the two clamping supporting plates 4-4 to move inwards simultaneously, the two transmission chain plates 4-7 drive the adjusting side supporting rods 5 to move by starting the two adjusting motors 4-5, the side position of the workpiece is adjusted, and the machining position is adjusted conveniently or the measurement of the workpiece is more convenient.
The second embodiment is as follows:
the present embodiment is described below with reference to fig. 1 to 8, wherein the supporting splint 1 includes a supporting connection base plate 1-1, an installation groove 1-2, a rotating rod 1-3 and a driven gear 1-4, the installation groove 1-2 is disposed at the upper end of the supporting connection base plate 1-1, the rotating rod 1-3 is fixedly connected to the supporting connection base plate 1-1, and a plurality of driven gears 1-4 are rotatably connected to the rotating rod 1-3.
The third concrete implementation mode:
the present embodiment will be described with reference to fig. 1-8, wherein the transmission rear mechanism 2 includes a rear storage box 2-1, a fixed link 2-2, a lower end link 2-3, a telescopic link 2-4, an upper end rotary joint 2-5 and a sliding rod mounting groove 2-6, the fixed link 2-2 is fixedly connected in the rear storage box 2-1, a plurality of lower end links 2-3 are rotatably connected to the fixed link 2-2, a plurality of telescopic links 2-4 are respectively fixedly connected to the upper ends of the plurality of lower end links 2-3, a plurality of upper end rotary joints 2-5 are respectively fixedly connected to the upper ends of the plurality of telescopic links 2-4, and the sliding rod mounting groove 2-6 is disposed on the rear storage box 2-1;
when different upper connecting racks 6-9 move different distances due to meshing transmission, the rotating angles of the plurality of lower end connecting rods 2-3 are different, so that the connected telescopic connecting rods 2-4 and the upper end rotating connecting heads 2-5 move different distances.
The fourth concrete implementation mode:
referring to fig. 1-8, the upper clamping fixing plate 3 includes a connecting plate 3-1 and an upper clamping mounting groove 3-2, the upper clamping mounting groove 3-2 is disposed on the connecting plate 3-1, and the connecting plate 3-1 is fixedly connected to the rear storage box 2-1.
The fifth concrete implementation mode:
referring to fig. 1-8, the embodiment will be described, wherein the lateral correcting mechanism 4 includes a driving motor 4-1, a rotating screw rod 4-2, a lower sliding plate 4-3, a clamping support plate 4-4, an adjusting motor 4-5, a transmission adjusting chain wheel 4-6, a transmission chain plate 4-7 and a sliding track 4-8, the driving motor 4-1 is fixedly connected to a supporting connection bottom plate 1-1, the rotating screw rod 4-2 is fixedly connected to an output shaft of the driving motor 4-1, both the lower sliding plates 4-3 and the rotating screw rod 4-2 are in threaded transmission, both the lower sliding plates 4-3 are slidably connected to the supporting connection bottom plate 1-1, and both the adjusting motors 4-5 are respectively and fixedly connected to both the clamping support plates 4-4, the two transmission adjusting chain wheels 4-6 are respectively and fixedly connected to output shafts of two adjusting motors 4-5, the two clamping support plates 4-4 are respectively and rotatably connected with the transmission adjusting chain wheels 4-6, the two transmission adjusting chain wheels 4-6 at the same side are transmitted through transmission chain plates 4-7, and the two clamping support plates 4-4 are respectively provided with sliding tracks 4-8;
the driving motor 4-1 is started, the rotating screw rod 4-2 rotates, the two lower end sliding plates 4-3 simultaneously move inwards under the pushing of the screw threads, the two clamping supporting plates 4-4 also move along with the rotating screw rod, the two adjusting motors 4-5 are started, and the two transmission adjusting chain wheels 4-6 connected with the adjusting motors rotate to enable all the transmission adjusting chain wheels 4-6 to rotate to drive the two transmission chain plates 4-7 to rotate under the transmission action of the two transmission chain plates 4-7, so that the positions of the lateral side supporting rods 5 are adjusted, and the position of a workpiece can be adjusted.
The sixth specific implementation mode:
the present embodiment is described below with reference to fig. 1 to 8, the adjusting side support rod 5 includes a sliding connection rod 5-1, a sliding connection post 5-2, an electric push rod 5-3 and an adjusting conical head 5-4, the sliding connection post 5-2 is fixedly connected to the sliding connection rod 5-1, the electric push rod 5-3 is fixedly connected to the sliding connection rod 5-1, the adjusting conical head 5-4 is fixedly connected to the electric push rod 5-3, two transmission chain plates 4-7 are respectively and fixedly connected to a plurality of sliding connection posts 5-2, and two sliding tracks 4-8 are respectively and slidably connected to a plurality of sliding connection posts 5-2.
The electric push rod 5-3 is started, the adjusting conical head 5-4 is pushed out, and the irregular contact part of the workpiece can be more attached to and the conical surface of the adjusting conical head 5-4 can be adjusted more accurately.
The seventh embodiment:
the embodiment is described below with reference to fig. 1-8, the upper symmetrical clamping mechanism 6 includes a sliding middle plate 6-1, supporting platforms 6-2, shaping fixed sliding plates 6-3, sliding connection air rods 6-4, connection thin rods 6-5, a lower connection rack 6-6, a rebound spring 6-7, a connection swivel mount 6-8 and an upper connection rack 6-9, a plurality of supporting platforms 6-2 are fixedly connected in the supporting connection bottom plate 1-1, a plurality of shaping fixed sliding plates 6-3 are respectively slidably connected in the plurality of supporting platforms 6-2, a plurality of sliding connection air rods 6-4 are respectively fixedly connected with the plurality of supporting platforms 6-2, a plurality of sliding connection air rods 6-4 are respectively communicated with the plurality of supporting platforms 6-2, a plurality of connection thin rods 6-5 are respectively slidably connected in the plurality of sliding connection air rods 6-4, the rear ends of the connecting thin rods 6-5 are fixedly connected with lower connecting racks 6-6, the lower connecting racks 6-6 and the upper connecting racks 6-9 are slidably connected in the sliding middle-section plate 6-1, the rebound springs 6-7 are fixedly connected in the rear storage box 2-1, the rebound springs 6-7 are fixedly connected to the lower connecting racks 6-6 respectively, the connecting rotary seats 6-8 are fixedly connected to the upper connecting racks 6-9 respectively, and the lower connecting rods 2-3 are rotatably connected in the connecting rotary seats 6-8 respectively;
a workpiece to be measured is placed on the plurality of shaping fixed sliding plates 6-3, the plurality of shaping fixed sliding plates 6-3 with the irregular shapes are compressed to slide down at different distances, the plurality of connecting thin rods 6-5 slide out at different distances under the action of air pressure difference to enable the plurality of lower connecting racks 6-6 connected with the connecting thin rods to slide at different distances, and the plurality of corresponding upper connecting racks 6-9 are driven by the plurality of driven gears 1-4 to slide at different distances, so that the rotating angles of the plurality of lower connecting rods 2-3 are adjusted.
The specific implementation mode is eight:
the embodiment is described below with reference to fig. 1 to 8, wherein the upper end clamping mechanism 7 includes a push-out rod 7-1, a slide-in air rod 7-2, an upper clamping plate 7-3, a detachable limiting plate 7-4 and a fixed air column 7-5, the slide-in air rod 7-2 is fixedly connected to the push-out rod 7-1, the slide-in air rod 7-2 is slidably connected to the upper clamping plate 7-3, the detachable limiting plate 7-4 is slidably connected to the upper clamping plate 7-3, a plurality of fixed air columns 7-5 are fixedly connected to the lower end of the detachable limiting plate 7-4, a plurality of push-out rods 7-1 are respectively rotatably connected to a plurality of upper end rotating connectors 2-5, and a plurality of push-out rods 7-1 are slidably connected to the slide rod mounting grooves 2-6.
The plurality of pushing rods 7-1 are pushed to slide into the air rods 7-2 to slide into the upper clamping plate 7-3, the plurality of detachable limiting plates 7-4 can slide out for a distance larger than the gliding distance of the plurality of fixed shaping sliding plates 6-3 due to the fact that the area of the plurality of detachable limiting plates 7-4 is smaller than the cross section area of the fixed shaping sliding plates 6-3, and the workpieces are fixed by the plurality of fixed air columns 7-5.
The invention relates to a clamp for repeatedly positioning a workpiece, which has the use principle that: a workpiece to be processed is placed on a circular placing table consisting of a plurality of shaping fixed sliding plates 6-3, the plurality of shaping fixed sliding plates 6-3 slide downwards due to different contact areas of irregular shapes of the workpiece to the plurality of shaping fixed sliding plates 6-3 to compress air in a plurality of supporting tables 6-2, an air pressure difference is generated between the air pressure difference and the outside, a plurality of connecting thin rods 6-5 are extruded out under the action of the air pressure difference to push a plurality of lower connecting racks 6-6 to move, a plurality of rebound springs 6-7 are compressed, a plurality of driven gears 1-4 rotate to drive a plurality of upper connecting racks 6-9 meshed with the driven gears to move, a plurality of connecting rotary seats 6-8 move along with the connecting rods 2-3 at the lower ends to rotate, a plurality of telescopic connecting rods 2-4 and a plurality of upper rotating connecting heads 2-5 rotate along with the connecting rods, the plurality of push-out rods 7-1 are pushed, the plurality of sliding-in air rods 7-2 are pushed into the plurality of upper clamping plates 7-3, the plurality of detachable limiting plates 7-4 move downwards, the plurality of fixed air columns 7-5 act on the upper end surface of the workpiece to complete positioning, the driving motor 4-1 is started, the rotating screw rod 4-2 is enabled to push the two clamping supporting plates 4-4 to move inwards simultaneously, the two transmission chain plates 4-7 are enabled to drive the adjusting side supporting rod 5 to move by starting the two adjusting motors 4-5, the side position of the workpiece is adjusted, the machining position is convenient to adjust or the measurement of the workpiece is more convenient, the workpiece to be measured is placed on the plurality of sizing fixed sliding plates 6-3, and the plurality of sizing fixed sliding plates 6-3 with irregular shapes of downward sliding are compressed at different distances, the connecting thin rods 6-5 slide out at different distances under the action of air pressure difference to enable the sliding distances of the lower connecting racks 6-6 connected with the connecting thin rods to be different, the corresponding sliding distances of the upper connecting racks 6-9 are different through the transmission of the driven gears 1-4, so that the rotating angles of the lower connecting rods 2-3 are adjusted, the push-out rods 7-1 are pushed to slide into the air rods 7-2 to slide into the upper clamping plates 7-3, the sliding distances of the detachable limiting plates 7-4 can be randomly enabled to be larger than the sliding distances of the fixed sliding plates 6-3 because the areas of the detachable limiting plates 7-4 are smaller than the cross-sectional areas of the fixed sliding plates 6-3, the fixed air columns 7-5 fix a workpiece, and when the different upper connecting racks 6-9 move for different distances due to meshing transmission, the rotation angles of the lower end connecting rods 2-3 are different, so that the connected telescopic connecting rods 2-4 and the upper end rotating connecting heads 2-5 move for different distances, the driving motor 4-1 is started, the rotating screw rod 4-2 rotates, the two lower end sliding plates 4-3 move inwards at the same time under the pushing of threads, the two clamping supporting plates 4-4 also move along with the rotation, the two adjusting motors 4-5 are started, the two transmission adjusting chain wheels 4-6 connected with the adjusting motors are rotated, all the transmission adjusting chain wheels 4-6 rotate under the transmission action of the two transmission chain plates 4-7 to drive the two transmission chain plates 4-7 to rotate, the positions of the lateral adjusting supporting rods 5 are adjusted, the positions of workpieces are adjusted, the electric push rods 5-3 are started, the adjusting conical heads 5-4 are pushed out, and the irregular contact parts of the workpieces can be more attached to the conical surfaces of the adjusting conical heads 5-4, so that .
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (8)
1. The utility model provides an anchor clamps for work piece repeated positioning, includes supporting splint (1), transmission rear mechanism (2), goes up centre gripping fixed plate (3), side correction mechanism (4), side branch (5), upper end symmetrical clamping mechanism (6) and upper end clamping mechanism (7) are divided in the adjustment, its characterized in that: drive rear mechanism (2) fixed connection in the rear end of supporting splint (1), go up centre gripping fixed plate (3) fixed connection at the front end of drive rear mechanism (2), side correction mechanism (4) fixed connection is in supporting splint (1), adjustment side branch (5) are provided with a plurality ofly, a plurality of adjustments side branch (5) are all sliding connection on adjustment side branch (5), upper end symmetry clamping mechanism (6) fixed connection is on supporting splint (1), upper end symmetry clamping mechanism (6) rotate connect drive rear mechanism (2), a plurality of upper end clamping mechanism (7) all rotate connect in the inside of drive rear mechanism (2), a plurality of upper end clamping mechanism (7) are all sliding connection in the inside of last centre gripping fixed plate (3).
2. A fixture for workpiece repositioning according to claim 1, wherein: the supporting clamping plate (1) comprises a supporting connection bottom plate (1-1), a mounting groove (1-2), a rotating rod (1-3) and driven gears (1-4), wherein the mounting groove (1-2) is formed in the upper end of the supporting connection bottom plate (1-1), the rotating rod (1-3) is fixedly connected to the supporting connection bottom plate (1-1), and the driven gears (1-4) are all rotatably connected to the rotating rod (1-3).
3. A fixture for workpiece repositioning according to claim 2, wherein: the transmission rear mechanism (2) comprises a rear storage box (2-1), a fixed connecting rod (2-2), a lower end connecting rod (2-3), a telescopic connecting rod (2-4), an upper end rotating connecting head (2-5) and a sliding rod mounting groove (2-6), the fixed connecting rods (2-2) are fixedly connected in the postposition storage box (2-1), the lower end connecting rods (2-3) are all rotatably connected on the fixed connecting rods (2-2), the telescopic connecting rods (2-4) are respectively and fixedly connected at the upper ends of the lower end connecting rods (2-3), the upper ends are respectively and fixedly connected with the upper ends of the telescopic connecting rods (2-4) in a rotating way, and the sliding rod mounting grooves (2-6) are arranged on the postposition storage box (2-1).
4. A fixture for workpiece repositioning according to claim 3 wherein: the upper clamping fixing plate (3) comprises a connecting plate (3-1) and an upper clamping mounting groove (3-2), the upper clamping mounting groove (3-2) is formed in the connecting plate (3-1), and the connecting plate (3-1) is fixedly connected to the rear storage box (2-1).
5. A fixture for workpiece repositioning according to claim 4 wherein: the lateral correction mechanism (4) comprises a driving motor (4-1), a rotating screw rod (4-2), lower end sliding plates (4-3), clamping support plates (4-4), an adjusting motor (4-5), a transmission adjusting chain wheel (4-6), a transmission chain plate (4-7) and a sliding track (4-8), wherein the driving motor (4-1) is fixedly connected on the supporting connection bottom plate (1-1), the rotating screw rod (4-2) is fixedly connected on an output shaft of the driving motor (4-1), the two lower end sliding plates (4-3) and the rotating screw rod (4-2) are in threaded transmission, the two lower end sliding plates (4-3) are both in sliding connection on the supporting connection bottom plate (1-1), the two adjusting motors (4-5) are respectively and fixedly connected on the two clamping support plates (4-4), the two transmission adjusting chain wheels (4-6) are respectively and fixedly connected to output shafts of the two adjusting motors (4-5), the two clamping supporting plates (4-4) are respectively and rotatably connected with the transmission adjusting chain wheels (4-6), the two transmission adjusting chain wheels (4-6) on the same side are transmitted through transmission chain plates (4-7), and the two clamping supporting plates (4-4) are respectively provided with sliding tracks (4-8).
6. A fixture for workpiece repositioning according to claim 5 wherein: the adjusting side support rod (5) comprises a sliding connecting rod (5-1), a sliding connecting column (5-2), an electric push rod (5-3) and an adjusting conical head (5-4), the sliding connecting column (5-2) is fixedly connected to the sliding connecting rod (5-1), the electric push rod (5-3) is fixedly connected to the sliding connecting rod (5-1), the adjusting conical head (5-4) is fixedly connected to the electric push rod (5-3), two transmission chain plates (4-7) are respectively and fixedly connected with a plurality of sliding connecting columns (5-2), and two sliding tracks (4-8) are respectively and slidably connected with a plurality of sliding connecting columns (5-2).
7. A fixture for workpiece repositioning according to claim 6 wherein: the upper end symmetrical clamping mechanism (6) comprises a sliding middle section plate (6-1), supporting tables (6-2), shaping fixed sliding plates (6-3), sliding connection air rods (6-4), a connection thin rod (6-5), a lower connection rack (6-6), a rebound spring (6-7), a connection rotary seat (6-8) and an upper connection rack (6-9), wherein the plurality of supporting tables (6-2) are fixedly connected in the support connection bottom plate (1-1), the plurality of shaping fixed sliding plates (6-3) are respectively and slidably connected in the plurality of supporting tables (6-2), the plurality of sliding connection air rods (6-4) are respectively and fixedly connected with the plurality of supporting tables (6-2), the plurality of sliding connection air rods (6-4) are respectively communicated with the plurality of supporting tables (6-2), the connecting thin rods (6-5) are respectively connected in the sliding connecting air rods (6-4) in a sliding mode, the rear ends of the connecting thin rods (6-5) are fixedly connected with lower connecting racks (6-6), the lower connecting racks (6-6) and the upper connecting racks (6-9) are respectively connected in a sliding middle section plate (6-1) in a sliding mode, the rebound springs (6-7) are respectively fixedly connected in the rear storage box (2-1), the rebound springs (6-7) are respectively fixedly connected on the lower connecting racks (6-6), the connecting rotary bases (6-8) are respectively fixedly connected on the upper connecting racks (6-9), and the lower connecting rods (2-3) are respectively connected in the connecting rotary bases (6-8) in a rotating mode.
8. A fixture for workpiece repositioning according to claim 7 wherein: the upper end clamping mechanism (7) comprises an ejector rod (7-1), a slide-in air rod (7-2), an upper clamping plate (7-3), a detachable limiting plate (7-4) and a fixed air column (7-5), the slide-in air rod (7-2) is fixedly connected on the ejector rod (7-1), the slide-in air rod (7-2) is slidably connected in the upper clamping plate (7-3), the detachable limiting plate (7-4) is connected in the upper clamping plate (7-3) in a sliding mode, the fixed air columns (7-5) are fixedly connected to the lower end of the detachable limiting plate (7-4), the push rods (7-1) are respectively connected to the upper end rotating connecting heads (2-5) in a rotating mode, and the push rods (7-1) are connected in the sliding rod mounting grooves (2-6) in a sliding mode.
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| CN202010907553.0A CN111975684B (en) | 2020-09-02 | 2020-09-02 | Clamp for repeatedly positioning workpieces |
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|---|---|---|---|
| CN202010907553.0A CN111975684B (en) | 2020-09-02 | 2020-09-02 | Clamp for repeatedly positioning workpieces |
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| CN111975684B CN111975684B (en) | 2021-11-05 |
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|---|---|
| CN111975684B (en) | 2021-11-05 |
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