SUMMERY OF THE UTILITY MODEL
In view of this, a clamping fixture is needed to reduce labor intensity and simplify steps.
The utility model provides a clamping tool for compress tightly and fix a position the work piece, be used for compressing tightly and fix a position the work piece, the clamping tool includes a base, still includes:
the positioning module is arranged on the base;
the outer holding module is arranged on the outer side of the positioning module and is movably arranged on the base;
the inner supporting module is arranged on the inner side of the positioning module, and a space for placing the workpiece is formed between the inner supporting module and the positioning module;
the pressing modules are arranged on the base in a surrounding manner at the outer side of the positioning module and movably, and the pressing modules and the outer holding module are arranged at intervals;
when the workpiece is positioned between the positioning module and the inner supporting module, the outer holding module approaches to the workpiece direction and drives the positioning module to abut against the outer side of the workpiece, the inner supporting module abuts against the inner side of the workpiece, and the pressing module abuts against the workpiece along the direction perpendicular to the base;
when the workpiece is detached from the clamping jig, the pressing module and the inner support module are respectively separated from the workpiece in sequence, the outer holding module moves in the direction back to the workpiece, and the positioning module is also separated from the workpiece.
In at least one mode, the positioning module comprises a base and a positioning piece, the base is fixed with the base, and the positioning piece is arranged on one side, far away from the base, of the base.
In at least one mode, the base is provided with a positioning rod, the positioning piece is provided with a positioning column, and the base and the positioning module are used for positioning the pressing module through the positioning rod and the positioning column on the positioning piece.
In at least one mode, the positioning element comprises a first fixing part, a second fixing part, a first movable part, a second movable part and a third movable part, the first fixing part and the second fixing part are vertically arranged, the first movable part and the second movable part are arranged on one side of the first fixing part in parallel, and the third movable part is arranged on one side of the second fixing part.
In at least one embodiment, elastic members are respectively provided between the first movable portion, the second movable portion, and the third movable portion and the base;
when the workpiece is detached from the clamping jig, the first movable part, the second movable part and the third movable part are driven by the elastic part to move in a direction away from the workpiece.
In at least one mode, embrace the module outward and embrace the cylinder and promote the piece including embracing tightly, it locates to promote the piece embrace tightly on the cylinder and be close to the orientation module is in order to support the setting element.
In at least one mode, the outer sides of the first movable part, the second movable part and the third movable part are respectively provided with an outer holding module;
when the workpiece is clamped, the first movable part, the second movable part and the third movable part are respectively driven by the corresponding outer holding modules to abut against the workpiece.
In at least one mode, the inner supporting module comprises an inner supporting cylinder and an inner supporting push block, and the inner supporting push block is arranged on the edge of the inner supporting cylinder in a telescopic mode and used for abutting against the workpiece.
In at least one mode, the inner supporting push block stretches towards the direction away from the inner supporting cylinder, and when the inner supporting push block fixes the workpiece through the inner supporting cylinder, the inner supporting push block at least supports two adjacent side faces of the workpiece.
In at least one mode, the compressing module comprises a compressing cylinder, a first compressing portion and a second compressing portion, one side of the first compressing portion is installed on the compressing cylinder through a fastener, the second compressing portion is arranged at the other end of the first compressing portion, and the compressing cylinder drives the first compressing portion to compress the workpiece through the second compressing portion.
The clamping jig provided by the invention compresses and positions the workpiece through the base, the positioning module, the inner support module, the outer holding module and the compressing module. The positioning module is arranged on the base, and the outer embracing module is arranged on the outer side of the positioning module and movably arranged on the base. The inner support module is arranged on the inner side of the positioning module, and the workpiece is arranged between the inner support module and the positioning module. The pressing module is arranged on the base in a surrounding mode on the outer side of the positioning module and is rotatably arranged on the base, and the pressing module and the outer holding module are arranged at intervals.
When the workpiece is installed on the clamping jig, the workpiece is located between the positioning module and the inner supporting module, the outer holding module is close to the workpiece direction and drives the positioning module to abut against the outer side of the workpiece, the inner supporting module at least abuts against the inner side of the workpiece, the base and the positioning module position the pressing module, and the pressing module abuts against the workpiece along the direction perpendicular to the base. And if the workpiece is detached from the clamping jig, the workpiece is detached in the reverse order during installation. Through the cooperation between each above-mentioned module for when the clamping work piece, need not the work piece body, directly locate foretell clamping tool with the work piece, need not to shift the tool repeatedly, simplified the step of feeding, tearing material open.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that 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. When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present. The terms "top," "bottom," "upper," "lower," "left," "right," "front," "rear," and the like as used herein are for illustrative purposes only.
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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 and 2, a clamping fixture 100 is used for pressing and positioning a workpiece 200. The clamping jig 100 comprises a base 10, a positioning module 20, an outer holding module 30, an inner supporting module 40 and a plurality of pressing modules 50.
The positioning module 20 is disposed on the base 10, and the outer embracing module 30 is disposed outside the positioning module 20 and movably disposed on the base 10. The inner support module 40 is disposed inside the positioning module 20, and the workpiece 200 is disposed between the inner support module 40 and the positioning module 20. The pressing module 50 is arranged around the outer side of the positioning module 20 and movably arranged on the base 10, and the pressing module 50 and the outer holding module 30 are arranged at intervals.
Referring to fig. 3, the base 10 includes a supporting plate 11 and a bottom plate 12, and the bottom plate 12 is fixed on the supporting plate 11. Further, the bottom plate 12 has an irregular rectangular shape. A groove 121 is formed at the edge of the bottom plate 12, and a through hole 122 is formed at the edge of the bottom plate 12. A plurality of positioning rods 123 are further disposed on the bottom plate 12, and the positioning rods 123 are used for positioning the compressing module 50.
Referring to fig. 4, the positioning module 20 includes a base 21, a positioning element 22 and a fixing block 23. The positioning piece 22 and the fixing block 23 are arranged on the top surface of the base 21, the positioning piece 22 and the fixing block 23 are arranged at intervals, and the base 21 is fixed with the base 10.
Specifically, the base 21 has a substantially hollow rectangular parallelepiped shape, and protruding portions 211 extend from four corners of the inner side of the base 21 to support the workpiece 200. The positioning member 22 includes a first fixing portion 221, a second fixing portion 222, a first movable portion 223, a second movable portion 224, and a third movable portion 225. The first fixing portion 221 is longer than the second fixing portion 222, the first fixing portion 221 is fixed on a long side of the base 21, and the second fixing portion 222 is fixed on a wide side of the base 21. The first movable portion 223 and the second movable portion 224 are arranged on one side of the first fixed portion 221, that is, the first movable portion 223 and the second movable portion 224 are arranged on the other long side of the base 21. The third movable portion 225 is disposed on one side of the second fixed portion 222, that is, the third movable portion 225 is disposed on the other wide side of the base 21.
Referring to fig. 3 and 4, the fixing block 23 is disposed between the first movable portion 223 and the second movable portion 224, and the fixing blocks 23 are disposed on outer sides of the first movable portion 223 and the second movable portion 224, respectively. The third movable portion 225 is also provided with fixing blocks 23 at both sides thereof. The fixed block 23 and the first movable portion 223, the second movable portion 224 and the third movable portion 225 are engaged with each other in a concave-convex manner, so that the first movable portion 223, the second movable portion 224 and the third movable portion 225 are movable on the base 21. The fixed block 23 defines the first, second and third movable portions 223, 224 and 225 to move in a direction perpendicular to the base 21 and guides the first, second and third movable portions 223, 224 and 225 in a direction parallel to the movement direction of the base 21. In the present embodiment, the first fixing portion 221, the second fixing portion 222, the first movable portion 223, the second movable portion 224, and the third movable portion 225 are disposed at an inner edge of the base 21. The base 21 is provided with the outer sides of the first movable portion 223, the second movable portion 224 and the third movable portion 225, and the groove 121 on the bottom plate 12 is correspondingly provided on the outer sides of the first movable portion 223, the second movable portion 224 and the third movable portion 225 relative to the base 21.
Referring to fig. 4, further, four positioning posts 226 extend from the first fixing portion 221 on an upper end surface away from the base 21, and two positioning posts 226 extend from the second fixing portion 222, the first movable portion 223, the second movable portion 224 and the third movable portion 225 on the upper end surface away from the base 21. The positioning posts 226 cooperate with the positioning posts 123 for positioning the compression module 50.
Referring to fig. 4 and 5, two elastic members 227 are respectively disposed on the upper end surfaces of the first movable portion 223, the second movable portion 224, and the third movable portion 225, which are in contact with the base 21. The elastic member 227 is extended and contracted toward the inner side of the base 21 and half of the elastic member 227 is disposed in the first, second and third movable portions 223, 224 and 225 and the other half is disposed in the base 21. In this embodiment, the elastic member 227 is a spring. It is understood that the number of the elastic members 227 may be replaced with other numbers in other embodiments, and the spring may be replaced with other elastic members 227 having an equivalent function or effect. When the workpiece 200 is detached from the clamping fixture, the first movable portion 223, the second movable portion 224, and the third movable portion 225 are driven by the elastic member 227 to move in a direction away from the workpiece 200.
Referring to fig. 3, the positioning module 20 positions the workpiece 200 in the X direction and the Y shape by the first fixing portion 221 and the second fixing portion 222. The first movable portion 223 and the second movable portion 224 position the workpiece 200 in the X direction, and the third movable portion 225 positions the workpiece 200 in the Y direction.
Referring to fig. 6, the outer embracing module 30 includes an embracing cylinder 31 and a pushing block 32. The pushing block 32 is disposed on the clasping cylinder 31, the pushing block 32 faces away from an end face 321 of the clasping cylinder 31, and an upper end 322 of the end face 321 extends a predetermined length relative to a lower end 323 thereof.
Referring to fig. 2, in the present embodiment, the clamping fixture 100 is provided with three outer embracing modules 30. The outer holding modules 30 are respectively disposed inside a groove 121 and move inside the groove 121. The first movable portion 223, the second movable portion 224, and the third movable portion 225 are respectively and correspondingly provided with an outer holding module 30 based on the outer side of the base 21, and when the workpiece 200 is clamped, the first movable portion 223, the second movable portion 224, and the third movable portion 225 are respectively driven by the corresponding outer holding modules 30 to abut against the workpiece 200. The pushing block 32 is close to the positioning module 20, and the pushing block 32 pushes the first movable portion 223, the second movable portion 224 and the third movable portion 225 through the end surface 321. Specifically, the pushing block 32 pushes the first movable portion 223, the second movable portion 224, and the third movable portion 225 through the upper end portion 322 of the end surface 321.
Referring to fig. 2 and 7, the inner supporting module 40 includes an inner supporting cylinder 41, an expansion rod 42, and an inner supporting push block 43. The inner supporting pushing block 43 is telescopically arranged at the edge of the inner supporting cylinder 41 through the telescopic rod 42 and is used for abutting against the workpiece 200. The inner supporting cylinder 41 has a substantially rectangular parallelepiped shape, and in other embodiments, the number of the inner supporting push blocks 43 may be changed according to the requirement of the workpiece. Two long edges of the inner supporting cylinder 41 are respectively provided with 4 inner supporting push blocks 43, two wide edges of the inner supporting cylinder 41 are respectively provided with 2 inner supporting push blocks 43, and the inner supporting push blocks 43 stretch in the direction away from the inner supporting cylinder 41 and are fixed to the workpiece 200 through the inner supporting cylinder 41. Further, the inner supporting and pushing block 43 is substantially L-shaped, and when the inner side of the workpiece 200 is pushed tightly, the inner supporting and pushing block 43 at least abuts against two adjacent side surfaces of the workpiece 200. It is understood that the inner supporting and pushing block 43 is not limited to the L shape, and other shapes with the same effect or function may be substituted, and the inner supporting and pushing block 43 may further support the adjacent three sides of the workpiece 200. The inner supporting and pushing block 43 is made of an aluminum alloy material, so that the workpiece 200 is prevented from being crushed when the workpiece 200 is abutted.
Referring to fig. 2, the inner supporting cylinder 41 is disposed inside the positioning module 20, and a certain distance is formed between the inner supporting cylinder 41 and the positioning module 20, so as to form a space for placing the workpiece 200, and the inner supporting push block 43 can move between the distances.
Referring to fig. 8 and 9, the pressing module 50 includes a pressing cylinder 51, a first pressing portion 52 and a second pressing portion 53. In the present embodiment, the first pressing portion 52 has a substantially L-shape. The first pressing portion 52 is mounted on the pressing cylinder 51 through a fastener 60, and the joint of the fastener 60 and the pressing cylinder 51 is of a countersunk design. The joint of the first compressing part 52 and the fastener 60 is provided with a washer 54 and the first compressing part 52 is designed to swing to reduce the error of the product. The second pressing portion 53 is connected to the other end of the first pressing portion 52 by a pin 55, and the first pressing portion 52 and the second pressing portion 53 are substantially perpendicular.
Referring to fig. 8 and 9, a first positioning hole 521 is formed at an end of the first pressing portion 52 close to the second pressing portion 53, and the first positioning hole 521 is positioned by the positioning post 226. The second pressing portion 53 is provided with two second positioning holes 531, and the second positioning holes 531 are matched with the positioning posts 226. An extending table 532 is arranged at one end of the second pressing part 53, which is far away from the first pressing part 52, and the second pressing part 53 abuts against the workpiece 200 through the extending table 532. Further, the fastener 60 is a countersunk screw, and the washer 54 is an elastic washer. The second pressing portion 53 can be better fixed by using a countersunk head screw, and the first pressing portion 52 is prevented from being loosened after a period of use by using an elastic washer.
Referring to fig. 2, in the present embodiment, the clamping fixture 100 is provided with 6 pressing modules 50, and the 6 pressing modules 50 surround and are installed on the bottom plate 12, and the clamping fixture supports the workpiece along the Z direction through the pressing modules 50. The cylinder shaft 511 of the pressing cylinder 51 is received in the through hole 122 of the bottom plate 12 to drive the pressing module 50 to rotate on the bottom plate 12 and move up and down along the Z direction. The first pressing portion 52 and the second pressing portion 53 are driven by the pressing cylinder 51 to rotate and move up and down on the base 10, so that the second pressing portion 53 presses the workpiece 200. Further, the pressing cylinder 51 drives the first pressing portion 52 to press the workpiece 200 through the second pressing portion 53. The pressing position of the pressing module 50 is substantially fixed and the pressing cylinder 51 cannot be too fast during rotation. It will be appreciated that the compression modules 50 may be varied in other numbers to achieve the same function or effect.
Referring to fig. 1, when the workpiece 200 is not mounted on the clamping fixture 100, the clasping cylinder 31 and the inner supporting cylinder 41 are in a retracted state. The pushing block 32 does not abut against the first movable portion 223, the second movable portion 224 and the third movable portion 225, and the inner supporting pushing block 43 does not extend out and is close to the inner supporting cylinder 41. The second pressing portion 53 of the pressing module 50 is deflected to other directions, and the base 10 and the positioning module 20 are unlocked from the pressing module 50. The positioning module 20, the internal support module 40 and the pressing module 50 are in a state of being separated from the workpiece 200.
Referring to fig. 2 and 3, when the workpiece 200 is mounted on the clamping fixture, the workpiece 200 is placed between the positioning module 20 and the internal supporting module 40, and the protruding portion 211 of the base 21 supports the workpiece 200. The outer embracing module 30 pushes the first movable portion 223, the second movable portion 224 and the third movable portion 225 to abut against the workpiece 200, and at this time, the elastic member 227 is compressed. The inner supporting cylinder 41 drives the inner supporting push block 43 to push the two adjacent side surfaces of the inner cavity of the workpiece 200 tightly, so that the workpiece 200 is prevented from deforming. The positioning post 226 is fixed in the first positioning hole 521 in a clamped manner, the protruding portion 211 is fixed in the second positioning hole 531 in a clamped manner, and the pressing module 50 presses the workpiece 200 through the extending platform 532 of the second pressing portion 53. The clamping fixture 100 completes the clamping action, and a machine (not shown) starts to process the workpiece 200.
The clasping cylinder 31 is pushed out, retracted and pushed out again, the inner supporting cylinder 41 pushes out the inner supporting push block 43 in the long side direction, and then pushes out the inner supporting push block 43 on the wide side of the inner supporting cylinder, so that the positioning accuracy of the workpiece 200 is improved. After the pressing module 50 is pressed down, the inner supporting module 40 repeats the action again, i.e. retracts and then pushes out, so as to prevent the X direction and the Y direction of the workpiece 200 from deviating when the pressing module 50 presses along the Z direction.
Referring to fig. 1 again, when the workpiece 200 is removed from the clamping fixture 100 after being processed, the pressing module 50 is separated from the workpiece 200, and the inner supporting pushing block 43 of the inner supporting module 40 is also separated from the workpiece 200. After the outer hoop module 30 is retracted, the first movable portion 223, the second movable portion 224 and the third movable portion 225 move away from the workpiece 200 by the elastic force of the elastic member 227, and the elastic member 227 is restored. The workpiece 200 can be removed from the clamping fixture 100.
To sum up, the embodiment of the present invention provides a clamping fixture 100 is right through the positioning module 20 the workpiece 200 is positioned, through the outer holding module 30 the inner supporting module 40 and the pressing module 50 are pressed and positioned. The feeding jig and the dismounting jig are not needed, the steps of feeding and dismounting are simplified, the labor is saved, and the labor intensity is reduced. The damage to the workpiece 200 is reduced by using the internal support module 40, and the damage to the workpiece 200 is also reduced by using the compression module 50 to avoid compressing the workpiece 200 in a large area.
In addition, those skilled in the art should recognize that the above embodiments are illustrative only, and not limiting, and that suitable modifications and variations to the above embodiments are within the spirit and scope of the invention as claimed.